57871462 |
1 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * |
2 | * Mupen64plus - new_dynarec.c * |
20d507ba |
3 | * Copyright (C) 2009-2011 Ari64 * |
57871462 |
4 | * * |
5 | * This program is free software; you can redistribute it and/or modify * |
6 | * it under the terms of the GNU General Public License as published by * |
7 | * the Free Software Foundation; either version 2 of the License, or * |
8 | * (at your option) any later version. * |
9 | * * |
10 | * This program is distributed in the hope that it will be useful, * |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
13 | * GNU General Public License for more details. * |
14 | * * |
15 | * You should have received a copy of the GNU General Public License * |
16 | * along with this program; if not, write to the * |
17 | * Free Software Foundation, Inc., * |
18 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * |
19 | * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
20 | |
21 | #include <stdlib.h> |
22 | #include <stdint.h> //include for uint64_t |
23 | #include <assert.h> |
d848b60a |
24 | #include <errno.h> |
4600ba03 |
25 | #include <sys/mman.h> |
d148d265 |
26 | #ifdef __MACH__ |
27 | #include <libkern/OSCacheControl.h> |
28 | #endif |
1e212a25 |
29 | #ifdef _3DS |
30 | #include <3ds_utils.h> |
31 | #endif |
3039c914 |
32 | #ifdef HAVE_LIBNX |
33 | #include <switch.h> |
34 | static Jit g_jit; |
35 | #endif |
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36 | |
d148d265 |
37 | #include "new_dynarec_config.h" |
3968e69e |
38 | #include "../psxhle.h" |
39 | #include "../psxinterpreter.h" |
de74f599 |
40 | #include "../psxcounters.h" |
81dbbf4c |
41 | #include "../gte.h" |
42 | #include "emu_if.h" // emulator interface |
a5cd72d0 |
43 | #include "linkage_offsets.h" |
44 | #include "compiler_features.h" |
cdc2da64 |
45 | #include "arm_features.h" |
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46 | |
b14b6a8f |
47 | #ifndef ARRAY_SIZE |
48 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) |
49 | #endif |
e3c6bdb5 |
50 | #ifndef min |
51 | #define min(a, b) ((b) < (a) ? (b) : (a)) |
52 | #endif |
32631e6a |
53 | #ifndef max |
54 | #define max(a, b) ((b) > (a) ? (b) : (a)) |
55 | #endif |
b14b6a8f |
56 | |
4600ba03 |
57 | //#define DISASM |
32631e6a |
58 | //#define ASSEM_PRINT |
a5cd72d0 |
59 | //#define REGMAP_PRINT // with DISASM only |
9b495f6e |
60 | //#define INV_DEBUG_W |
ece032e6 |
61 | //#define STAT_PRINT |
32631e6a |
62 | |
63 | #ifdef ASSEM_PRINT |
64 | #define assem_debug printf |
65 | #else |
4600ba03 |
66 | #define assem_debug(...) |
32631e6a |
67 | #endif |
68 | //#define inv_debug printf |
4600ba03 |
69 | #define inv_debug(...) |
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70 | |
71 | #ifdef __i386__ |
72 | #include "assem_x86.h" |
73 | #endif |
74 | #ifdef __x86_64__ |
75 | #include "assem_x64.h" |
76 | #endif |
77 | #ifdef __arm__ |
78 | #include "assem_arm.h" |
79 | #endif |
be516ebe |
80 | #ifdef __aarch64__ |
81 | #include "assem_arm64.h" |
82 | #endif |
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83 | |
81dbbf4c |
84 | #define RAM_SIZE 0x200000 |
d3201e39 |
85 | #define MAXBLOCK 2048 |
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86 | #define MAX_OUTPUT_BLOCK_SIZE 262144 |
93c0345b |
87 | #define EXPIRITY_OFFSET (MAX_OUTPUT_BLOCK_SIZE * 2) |
88 | #define PAGE_COUNT 1024 |
2573466a |
89 | |
882a08fc |
90 | #if defined(HAVE_CONDITIONAL_CALL) && !defined(DESTRUCTIVE_SHIFT) |
91 | #define INVALIDATE_USE_COND_CALL |
92 | #endif |
93 | |
66ea165f |
94 | #ifdef VITA |
95 | // apparently Vita has a 16MB limit, so either we cut tc in half, |
96 | // or use this hack (it's a hack because tc size was designed to be power-of-2) |
97 | #define TC_REDUCE_BYTES 4096 |
98 | #else |
99 | #define TC_REDUCE_BYTES 0 |
100 | #endif |
101 | |
d9e2b173 |
102 | struct ndrc_tramp |
103 | { |
104 | struct tramp_insns ops[2048 / sizeof(struct tramp_insns)]; |
105 | const void *f[2048 / sizeof(void *)]; |
106 | }; |
107 | |
2a014d73 |
108 | struct ndrc_mem |
109 | { |
66ea165f |
110 | u_char translation_cache[(1 << TARGET_SIZE_2) - TC_REDUCE_BYTES]; |
d9e2b173 |
111 | struct ndrc_tramp tramp; |
2a014d73 |
112 | }; |
113 | |
114 | #ifdef BASE_ADDR_DYNAMIC |
115 | static struct ndrc_mem *ndrc; |
116 | #else |
117 | static struct ndrc_mem ndrc_ __attribute__((aligned(4096))); |
118 | static struct ndrc_mem *ndrc = &ndrc_; |
119 | #endif |
d9e2b173 |
120 | #ifdef TC_WRITE_OFFSET |
3039c914 |
121 | # ifdef __GLIBC__ |
122 | # include <sys/types.h> |
123 | # include <sys/stat.h> |
124 | # include <fcntl.h> |
125 | # include <unistd.h> |
126 | # endif |
127 | static long ndrc_write_ofs; |
d9e2b173 |
128 | #define NDRC_WRITE_OFFSET(x) (void *)((char *)(x) + ndrc_write_ofs) |
3039c914 |
129 | #else |
d9e2b173 |
130 | #define NDRC_WRITE_OFFSET(x) (x) |
3039c914 |
131 | #endif |
2a014d73 |
132 | |
b14b6a8f |
133 | // stubs |
134 | enum stub_type { |
135 | CC_STUB = 1, |
a5cd72d0 |
136 | //FP_STUB = 2, |
b14b6a8f |
137 | LOADB_STUB = 3, |
138 | LOADH_STUB = 4, |
139 | LOADW_STUB = 5, |
a5cd72d0 |
140 | //LOADD_STUB = 6, |
b14b6a8f |
141 | LOADBU_STUB = 7, |
142 | LOADHU_STUB = 8, |
143 | STOREB_STUB = 9, |
144 | STOREH_STUB = 10, |
145 | STOREW_STUB = 11, |
a5cd72d0 |
146 | //STORED_STUB = 12, |
b14b6a8f |
147 | STORELR_STUB = 13, |
148 | INVCODE_STUB = 14, |
a5cd72d0 |
149 | OVERFLOW_STUB = 15, |
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150 | ALIGNMENT_STUB = 16, |
b14b6a8f |
151 | }; |
152 | |
6cc8d23c |
153 | // regmap_pre[i] - regs before [i] insn starts; dirty things here that |
154 | // don't match .regmap will be written back |
155 | // [i].regmap_entry - regs that must be set up if someone jumps here |
156 | // [i].regmap - regs [i] insn will read/(over)write |
2acc46cd |
157 | // branch_regs[i].* - same as above but for branches, takes delay slot into account |
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158 | struct regstat |
159 | { |
6cc8d23c |
160 | signed char regmap_entry[HOST_REGS]; |
57871462 |
161 | signed char regmap[HOST_REGS]; |
a22ccd6a |
162 | u_int wasdirty; |
163 | u_int dirty; |
24058131 |
164 | u_int wasconst; // before; for example 'lw r2, (r2)' wasconst is true |
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165 | u_int isconst; // ... but isconst is false when r2 is known (hr) |
8575a877 |
166 | u_int loadedconst; // host regs that have constants loaded |
90f98e7c |
167 | u_int noevict; // can't evict this hr (alloced by current op) |
9b495f6e |
168 | //u_int waswritten; // MIPS regs that were used as store base before |
a22ccd6a |
169 | uint64_t u; |
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170 | }; |
171 | |
df4dc2b1 |
172 | struct ht_entry |
173 | { |
174 | u_int vaddr[2]; |
175 | void *tcaddr[2]; |
176 | }; |
177 | |
b14b6a8f |
178 | struct code_stub |
179 | { |
180 | enum stub_type type; |
181 | void *addr; |
182 | void *retaddr; |
183 | u_int a; |
184 | uintptr_t b; |
185 | uintptr_t c; |
186 | u_int d; |
187 | u_int e; |
188 | }; |
189 | |
643aeae3 |
190 | struct link_entry |
191 | { |
192 | void *addr; |
193 | u_int target; |
104df9d3 |
194 | u_int internal; |
195 | }; |
196 | |
197 | struct block_info |
198 | { |
199 | struct block_info *next; |
200 | const void *source; |
201 | const void *copy; |
202 | u_int start; // vaddr of the block start |
203 | u_int len; // of the whole block source |
204 | u_int tc_offs; |
205 | //u_int tc_len; |
206 | u_int reg_sv_flags; |
3280e616 |
207 | u_char is_dirty; |
208 | u_char inv_near_misses; |
104df9d3 |
209 | u_short jump_in_cnt; |
210 | struct { |
211 | u_int vaddr; |
212 | void *addr; |
213 | } jump_in[0]; |
643aeae3 |
214 | }; |
215 | |
b7ad2f2c |
216 | struct jump_info |
217 | { |
218 | int alloc; |
219 | int count; |
220 | struct { |
221 | u_int target_vaddr; |
222 | void *stub; |
223 | } e[0]; |
224 | }; |
225 | |
cf95b4f0 |
226 | static struct decoded_insn |
227 | { |
228 | u_char itype; |
a5cd72d0 |
229 | u_char opcode; // bits 31-26 |
230 | u_char opcode2; // (depends on opcode) |
cf95b4f0 |
231 | u_char rs1; |
232 | u_char rs2; |
233 | u_char rt1; |
234 | u_char rt2; |
53dc27f6 |
235 | u_char use_lt1:1; |
cf95b4f0 |
236 | u_char bt:1; |
cf95b4f0 |
237 | u_char ooo:1; |
238 | u_char is_ds:1; |
fe807a8a |
239 | u_char is_jump:1; |
240 | u_char is_ujump:1; |
37387d8b |
241 | u_char is_load:1; |
242 | u_char is_store:1; |
a5cd72d0 |
243 | u_char is_delay_load:1; // is_load + MFC/CFC |
244 | u_char is_exception:1; // unconditional, also interp. fallback |
245 | u_char may_except:1; // might generate an exception |
f9e9616e |
246 | u_char ls_type:2; // load/store type (ls_width_type) |
cf95b4f0 |
247 | } dops[MAXBLOCK]; |
248 | |
f9e9616e |
249 | enum ls_width_type { |
250 | LS_8 = 0, LS_16, LS_32, LS_LR |
251 | }; |
252 | |
277718fa |
253 | static struct compile_info |
254 | { |
255 | int imm; |
256 | u_int ba; |
257 | int ccadj; |
258 | signed char min_free_regs; |
259 | signed char addr; |
260 | signed char reserved[2]; |
261 | } cinfo[MAXBLOCK]; |
262 | |
398d6924 |
263 | static u_char *out; |
6d75addf |
264 | static char invalid_code[0x100000]; |
104df9d3 |
265 | static struct ht_entry hash_table[65536]; |
93c0345b |
266 | static struct block_info *blocks[PAGE_COUNT]; |
b7ad2f2c |
267 | static struct jump_info *jumps[PAGE_COUNT]; |
e2b5e7aa |
268 | static u_int start; |
269 | static u_int *source; |
bedfea38 |
270 | static uint64_t gte_rs[MAXBLOCK]; // gte: 32 data and 32 ctl regs |
271 | static uint64_t gte_rt[MAXBLOCK]; |
272 | static uint64_t gte_unneeded[MAXBLOCK]; |
ffb0b9e0 |
273 | static u_int smrv[32]; // speculated MIPS register values |
274 | static u_int smrv_strong; // mask or regs that are likely to have correct values |
275 | static u_int smrv_weak; // same, but somewhat less likely |
276 | static u_int smrv_strong_next; // same, but after current insn executes |
277 | static u_int smrv_weak_next; |
e2b5e7aa |
278 | static uint64_t unneeded_reg[MAXBLOCK]; |
e2b5e7aa |
279 | static uint64_t branch_unneeded_reg[MAXBLOCK]; |
6cc8d23c |
280 | // see 'struct regstat' for a description |
2330734f |
281 | static signed char regmap_pre[MAXBLOCK][HOST_REGS]; |
40fca85b |
282 | // contains 'real' consts at [i] insn, but may differ from what's actually |
283 | // loaded in host reg as 'final' value is always loaded, see get_final_value() |
284 | static uint32_t current_constmap[HOST_REGS]; |
285 | static uint32_t constmap[MAXBLOCK][HOST_REGS]; |
956f3129 |
286 | static struct regstat regs[MAXBLOCK]; |
287 | static struct regstat branch_regs[MAXBLOCK]; |
e2b5e7aa |
288 | static int slen; |
df4dc2b1 |
289 | static void *instr_addr[MAXBLOCK]; |
643aeae3 |
290 | static struct link_entry link_addr[MAXBLOCK]; |
e2b5e7aa |
291 | static int linkcount; |
b14b6a8f |
292 | static struct code_stub stubs[MAXBLOCK*3]; |
e2b5e7aa |
293 | static int stubcount; |
294 | static u_int literals[1024][2]; |
295 | static int literalcount; |
296 | static int is_delayslot; |
e2b5e7aa |
297 | static char shadow[1048576] __attribute__((aligned(16))); |
298 | static void *copy; |
93c0345b |
299 | static u_int expirep; |
e2b5e7aa |
300 | static u_int stop_after_jal; |
7f94b097 |
301 | static u_int f1_hack; |
ece032e6 |
302 | #ifdef STAT_PRINT |
303 | static int stat_bc_direct; |
304 | static int stat_bc_pre; |
305 | static int stat_bc_restore; |
104df9d3 |
306 | static int stat_ht_lookups; |
ece032e6 |
307 | static int stat_jump_in_lookups; |
308 | static int stat_restore_tries; |
309 | static int stat_restore_compares; |
310 | static int stat_inv_addr_calls; |
311 | static int stat_inv_hits; |
104df9d3 |
312 | static int stat_blocks; |
313 | static int stat_links; |
ece032e6 |
314 | #define stat_inc(s) s++ |
104df9d3 |
315 | #define stat_dec(s) s-- |
316 | #define stat_clear(s) s = 0 |
ece032e6 |
317 | #else |
318 | #define stat_inc(s) |
104df9d3 |
319 | #define stat_dec(s) |
320 | #define stat_clear(s) |
ece032e6 |
321 | #endif |
e2b5e7aa |
322 | |
323 | int new_dynarec_hacks; |
d62c125a |
324 | int new_dynarec_hacks_pergame; |
32631e6a |
325 | int new_dynarec_hacks_old; |
e2b5e7aa |
326 | int new_dynarec_did_compile; |
687b4580 |
327 | |
d62c125a |
328 | #define HACK_ENABLED(x) ((new_dynarec_hacks | new_dynarec_hacks_pergame) & (x)) |
329 | |
de6dbc52 |
330 | extern int cycle_count; // ... until end of the timeslice, counts -N -> 0 (CCREG) |
687b4580 |
331 | extern int last_count; // last absolute target, often = next_interupt |
332 | extern int pcaddr; |
333 | extern int pending_exception; |
334 | extern int branch_target; |
37387d8b |
335 | extern uintptr_t ram_offset; |
d1e4ebd9 |
336 | extern uintptr_t mini_ht[32][2]; |
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337 | |
338 | /* registers that may be allocated */ |
339 | /* 1-31 gpr */ |
7c3a5182 |
340 | #define LOREG 32 // lo |
341 | #define HIREG 33 // hi |
00fa9369 |
342 | //#define FSREG 34 // FPU status (FCSR) |
de6dbc52 |
343 | //#define CSREG 35 // Coprocessor status |
57871462 |
344 | #define CCREG 36 // Cycle count |
345 | #define INVCP 37 // Pointer to invalid_code |
1edfcc68 |
346 | //#define MMREG 38 // Pointer to memory_map |
33a1eda1 |
347 | #define ROREG 39 // ram offset (if psxM != 0x80000000) |
619e5ded |
348 | #define TEMPREG 40 |
33a1eda1 |
349 | #define FTEMP 40 // Load/store temporary register (was fpu) |
619e5ded |
350 | #define PTEMP 41 // Prefetch temporary register |
1edfcc68 |
351 | //#define TLREG 42 // TLB mapping offset |
619e5ded |
352 | #define RHASH 43 // Return address hash |
353 | #define RHTBL 44 // Return address hash table address |
354 | #define RTEMP 45 // JR/JALR address register |
355 | #define MAXREG 45 |
277718fa |
356 | #define AGEN1 46 // Address generation temporary register (pass5b_preallocate2) |
1edfcc68 |
357 | //#define AGEN2 47 // Address generation temporary register |
57871462 |
358 | |
359 | /* instruction types */ |
360 | #define NOP 0 // No operation |
361 | #define LOAD 1 // Load |
362 | #define STORE 2 // Store |
363 | #define LOADLR 3 // Unaligned load |
364 | #define STORELR 4 // Unaligned store |
a5cd72d0 |
365 | #define MOV 5 // Move (hi/lo only) |
57871462 |
366 | #define ALU 6 // Arithmetic/logic |
367 | #define MULTDIV 7 // Multiply/divide |
368 | #define SHIFT 8 // Shift by register |
369 | #define SHIFTIMM 9// Shift by immediate |
370 | #define IMM16 10 // 16-bit immediate |
371 | #define RJUMP 11 // Unconditional jump to register |
372 | #define UJUMP 12 // Unconditional jump |
373 | #define CJUMP 13 // Conditional branch (BEQ/BNE/BGTZ/BLEZ) |
374 | #define SJUMP 14 // Conditional branch (regimm format) |
375 | #define COP0 15 // Coprocessor 0 |
a5cd72d0 |
376 | #define RFE 16 |
d1150cd6 |
377 | #define SYSCALL 22// SYSCALL,BREAK |
a5cd72d0 |
378 | #define OTHER 23 // Other/unknown - do nothing |
7139f3c8 |
379 | #define HLECALL 26// PCSX fake opcodes for HLE |
b9b61529 |
380 | #define COP2 27 // Coprocessor 2 move |
381 | #define C2LS 28 // Coprocessor 2 load/store |
382 | #define C2OP 29 // Coprocessor 2 operation |
1e973cb0 |
383 | #define INTCALL 30// Call interpreter to handle rare corner cases |
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384 | |
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385 | /* branch codes */ |
386 | #define TAKEN 1 |
387 | #define NOTTAKEN 2 |
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388 | |
7c3a5182 |
389 | #define DJT_1 (void *)1l // no function, just a label in assem_debug log |
390 | #define DJT_2 (void *)2l |
391 | |
57871462 |
392 | // asm linkage |
57871462 |
393 | void dyna_linker(); |
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394 | void cc_interrupt(); |
d1150cd6 |
395 | void jump_syscall (u_int u0, u_int u1, u_int pc); |
396 | void jump_syscall_ds(u_int u0, u_int u1, u_int pc); |
397 | void jump_break (u_int u0, u_int u1, u_int pc); |
398 | void jump_break_ds(u_int u0, u_int u1, u_int pc); |
a5cd72d0 |
399 | void jump_overflow (u_int u0, u_int u1, u_int pc); |
400 | void jump_overflow_ds(u_int u0, u_int u1, u_int pc); |
277718fa |
401 | void jump_addrerror (u_int cause, u_int addr, u_int pc); |
402 | void jump_addrerror_ds(u_int cause, u_int addr, u_int pc); |
3968e69e |
403 | void jump_to_new_pc(); |
81dbbf4c |
404 | void call_gteStall(); |
7139f3c8 |
405 | void new_dyna_leave(); |
57871462 |
406 | |
104df9d3 |
407 | void *ndrc_get_addr_ht_param(u_int vaddr, int can_compile); |
408 | void *ndrc_get_addr_ht(u_int vaddr); |
104df9d3 |
409 | void ndrc_add_jump_out(u_int vaddr, void *src); |
9b495f6e |
410 | void ndrc_write_invalidate_one(u_int addr); |
411 | static void ndrc_write_invalidate_many(u_int addr, u_int end); |
104df9d3 |
412 | |
413 | static int new_recompile_block(u_int addr); |
414 | static void invalidate_block(struct block_info *block); |
a5cd72d0 |
415 | static void exception_assemble(int i, const struct regstat *i_regs, int ccadj_); |
398d6924 |
416 | |
57871462 |
417 | // Needed by assembler |
a22ccd6a |
418 | static void wb_register(signed char r, const signed char regmap[], u_int dirty); |
419 | static void wb_dirtys(const signed char i_regmap[], u_int i_dirty); |
420 | static void wb_needed_dirtys(const signed char i_regmap[], u_int i_dirty, int addr); |
2330734f |
421 | static void load_all_regs(const signed char i_regmap[]); |
422 | static void load_needed_regs(const signed char i_regmap[], const signed char next_regmap[]); |
e2b5e7aa |
423 | static void load_regs_entry(int t); |
2330734f |
424 | static void load_all_consts(const signed char regmap[], u_int dirty, int i); |
81dbbf4c |
425 | static u_int get_host_reglist(const signed char *regmap); |
e2b5e7aa |
426 | |
de6dbc52 |
427 | static int get_final_value(int hr, int i, u_int *value); |
b14b6a8f |
428 | static void add_stub(enum stub_type type, void *addr, void *retaddr, |
429 | u_int a, uintptr_t b, uintptr_t c, u_int d, u_int e); |
430 | static void add_stub_r(enum stub_type type, void *addr, void *retaddr, |
81dbbf4c |
431 | int i, int addr_reg, const struct regstat *i_regs, int ccadj, u_int reglist); |
643aeae3 |
432 | static void add_to_linker(void *addr, u_int target, int ext); |
687b4580 |
433 | static void *get_direct_memhandler(void *table, u_int addr, |
434 | enum stub_type type, uintptr_t *addr_host); |
32631e6a |
435 | static void cop2_do_stall_check(u_int op, int i, const struct regstat *i_regs, u_int reglist); |
687b4580 |
436 | static void pass_args(int a0, int a1); |
2a014d73 |
437 | static void emit_far_jump(const void *f); |
438 | static void emit_far_call(const void *f); |
57871462 |
439 | |
9c67c98f |
440 | #ifdef VITA |
441 | #include <psp2/kernel/sysmem.h> |
442 | static int sceBlock; |
443 | // note: this interacts with RetroArch's Vita bootstrap code: bootstrap/vita/sbrk.c |
444 | extern int getVMBlock(); |
445 | int _newlib_vm_size_user = sizeof(*ndrc); |
446 | #endif |
447 | |
d148d265 |
448 | static void mprotect_w_x(void *start, void *end, int is_x) |
449 | { |
450 | #ifdef NO_WRITE_EXEC |
1e212a25 |
451 | #if defined(VITA) |
452 | // *Open* enables write on all memory that was |
453 | // allocated by sceKernelAllocMemBlockForVM()? |
454 | if (is_x) |
455 | sceKernelCloseVMDomain(); |
456 | else |
457 | sceKernelOpenVMDomain(); |
3039c914 |
458 | #elif defined(HAVE_LIBNX) |
459 | Result rc; |
d9e2b173 |
460 | // check to avoid the full flush in jitTransitionToExecutable() |
461 | if (g_jit.type != JitType_CodeMemory) { |
462 | if (is_x) |
463 | rc = jitTransitionToExecutable(&g_jit); |
464 | else |
465 | rc = jitTransitionToWritable(&g_jit); |
466 | if (R_FAILED(rc)) |
467 | ;//SysPrintf("jitTransition %d %08x\n", is_x, rc); |
468 | } |
469 | #elif defined(TC_WRITE_OFFSET) |
3039c914 |
470 | // separated rx and rw areas are always available |
1e212a25 |
471 | #else |
d148d265 |
472 | u_long mstart = (u_long)start & ~4095ul; |
473 | u_long mend = (u_long)end; |
474 | if (mprotect((void *)mstart, mend - mstart, |
475 | PROT_READ | (is_x ? PROT_EXEC : PROT_WRITE)) != 0) |
476 | SysPrintf("mprotect(%c) failed: %s\n", is_x ? 'x' : 'w', strerror(errno)); |
1e212a25 |
477 | #endif |
d148d265 |
478 | #endif |
479 | } |
480 | |
d9e2b173 |
481 | static void start_tcache_write(void *start, void *end) |
d148d265 |
482 | { |
483 | mprotect_w_x(start, end, 0); |
484 | } |
485 | |
486 | static void end_tcache_write(void *start, void *end) |
487 | { |
919981d0 |
488 | #if defined(__arm__) || defined(__aarch64__) |
d148d265 |
489 | size_t len = (char *)end - (char *)start; |
490 | #if defined(__BLACKBERRY_QNX__) |
491 | msync(start, len, MS_SYNC | MS_CACHE_ONLY | MS_INVALIDATE_ICACHE); |
492 | #elif defined(__MACH__) |
493 | sys_cache_control(kCacheFunctionPrepareForExecution, start, len); |
494 | #elif defined(VITA) |
1e212a25 |
495 | sceKernelSyncVMDomain(sceBlock, start, len); |
496 | #elif defined(_3DS) |
497 | ctr_flush_invalidate_cache(); |
3039c914 |
498 | #elif defined(HAVE_LIBNX) |
d9e2b173 |
499 | if (g_jit.type == JitType_CodeMemory) { |
500 | armDCacheClean(start, len); |
501 | armICacheInvalidate((char *)start - ndrc_write_ofs, len); |
aaece508 |
502 | // as of v4.2.1 libnx lacks isb |
503 | __asm__ volatile("isb" ::: "memory"); |
d9e2b173 |
504 | } |
919981d0 |
505 | #elif defined(__aarch64__) |
506 | // as of 2021, __clear_cache() is still broken on arm64 |
507 | // so here is a custom one :( |
508 | clear_cache_arm64(start, end); |
d148d265 |
509 | #else |
510 | __clear_cache(start, end); |
511 | #endif |
512 | (void)len; |
513 | #endif |
514 | |
515 | mprotect_w_x(start, end, 1); |
516 | } |
517 | |
518 | static void *start_block(void) |
519 | { |
520 | u_char *end = out + MAX_OUTPUT_BLOCK_SIZE; |
2a014d73 |
521 | if (end > ndrc->translation_cache + sizeof(ndrc->translation_cache)) |
522 | end = ndrc->translation_cache + sizeof(ndrc->translation_cache); |
d9e2b173 |
523 | start_tcache_write(NDRC_WRITE_OFFSET(out), NDRC_WRITE_OFFSET(end)); |
d148d265 |
524 | return out; |
525 | } |
526 | |
527 | static void end_block(void *start) |
528 | { |
d9e2b173 |
529 | end_tcache_write(NDRC_WRITE_OFFSET(start), NDRC_WRITE_OFFSET(out)); |
d148d265 |
530 | } |
531 | |
af700b41 |
532 | #ifdef NDRC_CACHE_FLUSH_ALL |
533 | |
534 | static int needs_clear_cache; |
535 | |
536 | static void mark_clear_cache(void *target) |
537 | { |
538 | if (!needs_clear_cache) { |
d9e2b173 |
539 | start_tcache_write(NDRC_WRITE_OFFSET(ndrc), NDRC_WRITE_OFFSET(ndrc + 1)); |
af700b41 |
540 | needs_clear_cache = 1; |
541 | } |
542 | } |
543 | |
544 | static void do_clear_cache(void) |
545 | { |
546 | if (needs_clear_cache) { |
d9e2b173 |
547 | end_tcache_write(NDRC_WRITE_OFFSET(ndrc), NDRC_WRITE_OFFSET(ndrc + 1)); |
af700b41 |
548 | needs_clear_cache = 0; |
549 | } |
550 | } |
551 | |
552 | #else |
553 | |
919981d0 |
554 | // also takes care of w^x mappings when patching code |
555 | static u_int needs_clear_cache[1<<(TARGET_SIZE_2-17)]; |
556 | |
557 | static void mark_clear_cache(void *target) |
558 | { |
559 | uintptr_t offset = (u_char *)target - ndrc->translation_cache; |
560 | u_int mask = 1u << ((offset >> 12) & 31); |
561 | if (!(needs_clear_cache[offset >> 17] & mask)) { |
d9e2b173 |
562 | char *start = (char *)NDRC_WRITE_OFFSET((uintptr_t)target & ~4095l); |
919981d0 |
563 | start_tcache_write(start, start + 4095); |
564 | needs_clear_cache[offset >> 17] |= mask; |
565 | } |
566 | } |
567 | |
568 | // Clearing the cache is rather slow on ARM Linux, so mark the areas |
569 | // that need to be cleared, and then only clear these areas once. |
570 | static void do_clear_cache(void) |
571 | { |
572 | int i, j; |
573 | for (i = 0; i < (1<<(TARGET_SIZE_2-17)); i++) |
574 | { |
575 | u_int bitmap = needs_clear_cache[i]; |
576 | if (!bitmap) |
577 | continue; |
578 | for (j = 0; j < 32; j++) |
579 | { |
580 | u_char *start, *end; |
93c0345b |
581 | if (!(bitmap & (1u << j))) |
919981d0 |
582 | continue; |
583 | |
584 | start = ndrc->translation_cache + i*131072 + j*4096; |
585 | end = start + 4095; |
586 | for (j++; j < 32; j++) { |
93c0345b |
587 | if (!(bitmap & (1u << j))) |
919981d0 |
588 | break; |
589 | end += 4096; |
590 | } |
d9e2b173 |
591 | end_tcache_write(NDRC_WRITE_OFFSET(start), NDRC_WRITE_OFFSET(end)); |
919981d0 |
592 | } |
593 | needs_clear_cache[i] = 0; |
594 | } |
595 | } |
596 | |
af700b41 |
597 | #endif // NDRC_CACHE_FLUSH_ALL |
57871462 |
598 | |
b6e87b2b |
599 | #define NO_CYCLE_PENALTY_THR 12 |
600 | |
32631e6a |
601 | int cycle_multiplier_old; |
24058131 |
602 | static int cycle_multiplier_active; |
4e9dcd7f |
603 | |
604 | static int CLOCK_ADJUST(int x) |
605 | { |
24058131 |
606 | int m = cycle_multiplier_active; |
607 | int s = (x >> 31) | 1; |
a3203cf4 |
608 | return (x * m + s * 50) / 100; |
4e9dcd7f |
609 | } |
610 | |
4919de1e |
611 | static int ds_writes_rjump_rs(int i) |
612 | { |
ecca05e3 |
613 | return dops[i].rs1 != 0 |
614 | && (dops[i].rs1 == dops[i+1].rt1 || dops[i].rs1 == dops[i+1].rt2 |
615 | || dops[i].rs1 == dops[i].rt1); // overwrites itself - same effect |
4919de1e |
616 | } |
617 | |
104df9d3 |
618 | // psx addr mirror masking (for invalidation) |
619 | static u_int pmmask(u_int vaddr) |
620 | { |
621 | vaddr &= ~0xe0000000; |
622 | if (vaddr < 0x01000000) |
623 | vaddr &= ~0x00e00000; // RAM mirrors |
624 | return vaddr; |
625 | } |
626 | |
94d23bb9 |
627 | static u_int get_page(u_int vaddr) |
57871462 |
628 | { |
104df9d3 |
629 | u_int page = pmmask(vaddr) >> 12; |
93c0345b |
630 | if (page >= PAGE_COUNT / 2) |
631 | page = PAGE_COUNT / 2 + (page & (PAGE_COUNT / 2 - 1)); |
94d23bb9 |
632 | return page; |
633 | } |
634 | |
104df9d3 |
635 | // get a page for looking for a block that has vaddr |
636 | // (needed because the block may start in previous page) |
637 | static u_int get_page_prev(u_int vaddr) |
d25604ca |
638 | { |
104df9d3 |
639 | assert(MAXBLOCK <= (1 << 12)); |
640 | u_int page = get_page(vaddr); |
641 | if (page & 511) |
642 | page--; |
643 | return page; |
d25604ca |
644 | } |
94d23bb9 |
645 | |
df4dc2b1 |
646 | static struct ht_entry *hash_table_get(u_int vaddr) |
647 | { |
648 | return &hash_table[((vaddr>>16)^vaddr)&0xFFFF]; |
649 | } |
650 | |
04714958 |
651 | #define HASH_TABLE_BAD 0xbac |
652 | |
653 | static void hash_table_clear(void) |
654 | { |
655 | struct ht_entry *ht_bin; |
656 | int i, j; |
657 | for (i = 0; i < ARRAY_SIZE(hash_table); i++) { |
658 | for (j = 0; j < ARRAY_SIZE(hash_table[i].vaddr); j++) { |
659 | hash_table[i].vaddr[j] = ~0; |
660 | hash_table[i].tcaddr[j] = (void *)(uintptr_t)HASH_TABLE_BAD; |
661 | } |
662 | } |
663 | // don't allow ~0 to hit |
664 | ht_bin = hash_table_get(~0); |
665 | for (j = 0; j < ARRAY_SIZE(ht_bin->vaddr); j++) |
666 | ht_bin->vaddr[j] = 1; |
667 | } |
668 | |
104df9d3 |
669 | static void hash_table_add(u_int vaddr, void *tcaddr) |
df4dc2b1 |
670 | { |
104df9d3 |
671 | struct ht_entry *ht_bin = hash_table_get(vaddr); |
672 | assert(tcaddr); |
df4dc2b1 |
673 | ht_bin->vaddr[1] = ht_bin->vaddr[0]; |
674 | ht_bin->tcaddr[1] = ht_bin->tcaddr[0]; |
675 | ht_bin->vaddr[0] = vaddr; |
676 | ht_bin->tcaddr[0] = tcaddr; |
677 | } |
678 | |
104df9d3 |
679 | static void hash_table_remove(int vaddr) |
680 | { |
681 | //printf("remove hash: %x\n",vaddr); |
682 | struct ht_entry *ht_bin = hash_table_get(vaddr); |
683 | if (ht_bin->vaddr[1] == vaddr) { |
04714958 |
684 | ht_bin->vaddr[1] = ~0; |
685 | ht_bin->tcaddr[1] = (void *)(uintptr_t)HASH_TABLE_BAD; |
104df9d3 |
686 | } |
687 | if (ht_bin->vaddr[0] == vaddr) { |
688 | ht_bin->vaddr[0] = ht_bin->vaddr[1]; |
689 | ht_bin->tcaddr[0] = ht_bin->tcaddr[1]; |
04714958 |
690 | ht_bin->vaddr[1] = ~0; |
691 | ht_bin->tcaddr[1] = (void *)(uintptr_t)HASH_TABLE_BAD; |
104df9d3 |
692 | } |
693 | } |
694 | |
04714958 |
695 | static void mini_ht_clear(void) |
696 | { |
697 | #ifdef USE_MINI_HT |
698 | int i; |
699 | for (i = 0; i < ARRAY_SIZE(mini_ht) - 1; i++) { |
700 | mini_ht[i][0] = ~0; |
701 | mini_ht[i][1] = HASH_TABLE_BAD; |
702 | } |
703 | mini_ht[i][0] = 1; |
704 | mini_ht[i][1] = HASH_TABLE_BAD; |
705 | #endif |
706 | } |
707 | |
104df9d3 |
708 | static void mark_invalid_code(u_int vaddr, u_int len, char invalid) |
398d6924 |
709 | { |
ab4377be |
710 | u_int vaddr_m = vaddr & 0x1fffffff; |
398d6924 |
711 | u_int i, j; |
ab4377be |
712 | for (i = vaddr_m & ~0xfff; i < vaddr_m + len; i += 0x1000) { |
398d6924 |
713 | // ram mirrors, but should not hurt bios |
714 | for (j = 0; j < 0x800000; j += 0x200000) { |
715 | invalid_code[(i|j) >> 12] = |
716 | invalid_code[(i|j|0x80000000u) >> 12] = |
104df9d3 |
717 | invalid_code[(i|j|0xa0000000u) >> 12] = invalid; |
398d6924 |
718 | } |
719 | } |
882a08fc |
720 | if (!invalid && vaddr + len > inv_code_start && vaddr <= inv_code_end) |
104df9d3 |
721 | inv_code_start = inv_code_end = ~0; |
398d6924 |
722 | } |
723 | |
93c0345b |
724 | static int doesnt_expire_soon(u_char *tcaddr) |
df4dc2b1 |
725 | { |
93c0345b |
726 | u_int diff = (u_int)(tcaddr - out) & ((1u << TARGET_SIZE_2) - 1u); |
727 | return diff > EXPIRITY_OFFSET + MAX_OUTPUT_BLOCK_SIZE; |
df4dc2b1 |
728 | } |
729 | |
9b495f6e |
730 | static unused void check_for_block_changes(u_int start, u_int end) |
731 | { |
732 | u_int start_page = get_page_prev(start); |
733 | u_int end_page = get_page(end - 1); |
734 | u_int page; |
735 | |
736 | for (page = start_page; page <= end_page; page++) { |
737 | struct block_info *block; |
738 | for (block = blocks[page]; block != NULL; block = block->next) { |
739 | if (block->is_dirty) |
740 | continue; |
741 | if (memcmp(block->source, block->copy, block->len)) { |
742 | printf("bad block %08x-%08x %016llx %016llx @%08x\n", |
743 | block->start, block->start + block->len, |
744 | *(long long *)block->source, *(long long *)block->copy, psxRegs.pc); |
745 | fflush(stdout); |
746 | abort(); |
747 | } |
748 | } |
749 | } |
750 | } |
751 | |
104df9d3 |
752 | static void *try_restore_block(u_int vaddr, u_int start_page, u_int end_page) |
398d6924 |
753 | { |
104df9d3 |
754 | void *found_clean = NULL; |
755 | u_int i, page; |
398d6924 |
756 | |
ece032e6 |
757 | stat_inc(stat_restore_tries); |
104df9d3 |
758 | for (page = start_page; page <= end_page; page++) { |
759 | struct block_info *block; |
760 | for (block = blocks[page]; block != NULL; block = block->next) { |
761 | if (vaddr < block->start) |
762 | break; |
763 | if (!block->is_dirty || vaddr >= block->start + block->len) |
764 | continue; |
765 | for (i = 0; i < block->jump_in_cnt; i++) |
766 | if (block->jump_in[i].vaddr == vaddr) |
767 | break; |
768 | if (i == block->jump_in_cnt) |
769 | continue; |
770 | assert(block->source && block->copy); |
771 | stat_inc(stat_restore_compares); |
772 | if (memcmp(block->source, block->copy, block->len)) |
773 | continue; |
398d6924 |
774 | |
3280e616 |
775 | block->is_dirty = block->inv_near_misses = 0; |
104df9d3 |
776 | found_clean = block->jump_in[i].addr; |
777 | hash_table_add(vaddr, found_clean); |
778 | mark_invalid_code(block->start, block->len, 0); |
779 | stat_inc(stat_bc_restore); |
780 | inv_debug("INV: restored %08x %p (%d)\n", vaddr, found_clean, block->jump_in_cnt); |
781 | return found_clean; |
398d6924 |
782 | } |
398d6924 |
783 | } |
104df9d3 |
784 | return NULL; |
398d6924 |
785 | } |
786 | |
de6dbc52 |
787 | // this doesn't normally happen |
788 | static noinline u_int generate_exception(u_int pc) |
789 | { |
790 | //if (execBreakCheck(&psxRegs, pc)) |
791 | // return psxRegs.pc; |
792 | |
793 | // generate an address or bus error |
794 | psxRegs.CP0.n.Cause &= 0x300; |
795 | psxRegs.CP0.n.EPC = pc; |
796 | if (pc & 3) { |
797 | psxRegs.CP0.n.Cause |= R3000E_AdEL << 2; |
798 | psxRegs.CP0.n.BadVAddr = pc; |
799 | #ifdef DRC_DBG |
800 | last_count -= 2; |
801 | #endif |
802 | } else |
803 | psxRegs.CP0.n.Cause |= R3000E_IBE << 2; |
804 | return (psxRegs.pc = 0x80000080); |
805 | } |
806 | |
94d23bb9 |
807 | // Get address from virtual address |
808 | // This is called from the recompiled JR/JALR instructions |
104df9d3 |
809 | static void noinline *get_addr(u_int vaddr, int can_compile) |
94d23bb9 |
810 | { |
104df9d3 |
811 | u_int start_page = get_page_prev(vaddr); |
812 | u_int i, page, end_page = get_page(vaddr); |
813 | void *found_clean = NULL; |
398d6924 |
814 | |
ece032e6 |
815 | stat_inc(stat_jump_in_lookups); |
104df9d3 |
816 | for (page = start_page; page <= end_page; page++) { |
817 | const struct block_info *block; |
818 | for (block = blocks[page]; block != NULL; block = block->next) { |
819 | if (vaddr < block->start) |
820 | break; |
821 | if (block->is_dirty || vaddr >= block->start + block->len) |
822 | continue; |
823 | for (i = 0; i < block->jump_in_cnt; i++) |
824 | if (block->jump_in[i].vaddr == vaddr) |
825 | break; |
826 | if (i == block->jump_in_cnt) |
827 | continue; |
828 | found_clean = block->jump_in[i].addr; |
829 | hash_table_add(vaddr, found_clean); |
830 | return found_clean; |
57871462 |
831 | } |
57871462 |
832 | } |
104df9d3 |
833 | found_clean = try_restore_block(vaddr, start_page, end_page); |
834 | if (found_clean) |
835 | return found_clean; |
836 | |
837 | if (!can_compile) |
838 | return NULL; |
398d6924 |
839 | |
840 | int r = new_recompile_block(vaddr); |
de6dbc52 |
841 | if (likely(r == 0)) |
104df9d3 |
842 | return ndrc_get_addr_ht(vaddr); |
df4dc2b1 |
843 | |
de6dbc52 |
844 | return ndrc_get_addr_ht(generate_exception(vaddr)); |
57871462 |
845 | } |
104df9d3 |
846 | |
57871462 |
847 | // Look up address in hash table first |
104df9d3 |
848 | void *ndrc_get_addr_ht_param(u_int vaddr, int can_compile) |
57871462 |
849 | { |
9b495f6e |
850 | //check_for_block_changes(vaddr, vaddr + MAXBLOCK); |
df4dc2b1 |
851 | const struct ht_entry *ht_bin = hash_table_get(vaddr); |
277718fa |
852 | u_int vaddr_a = vaddr & ~3; |
104df9d3 |
853 | stat_inc(stat_ht_lookups); |
277718fa |
854 | if (ht_bin->vaddr[0] == vaddr_a) return ht_bin->tcaddr[0]; |
855 | if (ht_bin->vaddr[1] == vaddr_a) return ht_bin->tcaddr[1]; |
104df9d3 |
856 | return get_addr(vaddr, can_compile); |
857 | } |
858 | |
859 | void *ndrc_get_addr_ht(u_int vaddr) |
860 | { |
861 | return ndrc_get_addr_ht_param(vaddr, 1); |
57871462 |
862 | } |
863 | |
6cc8d23c |
864 | static void clear_all_regs(signed char regmap[]) |
57871462 |
865 | { |
6cc8d23c |
866 | memset(regmap, -1, sizeof(regmap[0]) * HOST_REGS); |
57871462 |
867 | } |
868 | |
53358c1d |
869 | // get_reg: get allocated host reg from mips reg |
870 | // returns -1 if no such mips reg was allocated |
cdc2da64 |
871 | #if defined(__arm__) && defined(HAVE_ARMV6) && HOST_REGS == 13 && EXCLUDE_REG == 11 |
872 | |
873 | extern signed char get_reg(const signed char regmap[], signed char r); |
874 | |
875 | #else |
876 | |
9de8a0c3 |
877 | static signed char get_reg(const signed char regmap[], signed char r) |
57871462 |
878 | { |
879 | int hr; |
9de8a0c3 |
880 | for (hr = 0; hr < HOST_REGS; hr++) { |
881 | if (hr == EXCLUDE_REG) |
882 | continue; |
883 | if (regmap[hr] == r) |
884 | return hr; |
885 | } |
886 | return -1; |
887 | } |
888 | |
cdc2da64 |
889 | #endif |
890 | |
a5cd72d0 |
891 | // get reg suitable for writing |
892 | static signed char get_reg_w(const signed char regmap[], signed char r) |
893 | { |
894 | return r == 0 ? -1 : get_reg(regmap, r); |
895 | } |
896 | |
53358c1d |
897 | // get reg as mask bit (1 << hr) |
898 | static u_int get_regm(const signed char regmap[], signed char r) |
899 | { |
900 | return (1u << (get_reg(regmap, r) & 31)) & ~(1u << 31); |
901 | } |
902 | |
9de8a0c3 |
903 | static signed char get_reg_temp(const signed char regmap[]) |
904 | { |
905 | int hr; |
906 | for (hr = 0; hr < HOST_REGS; hr++) { |
907 | if (hr == EXCLUDE_REG) |
908 | continue; |
909 | if (regmap[hr] == (signed char)-1) |
910 | return hr; |
911 | } |
57871462 |
912 | return -1; |
913 | } |
914 | |
915 | // Find a register that is available for two consecutive cycles |
d1e4ebd9 |
916 | static signed char get_reg2(signed char regmap1[], const signed char regmap2[], int r) |
57871462 |
917 | { |
918 | int hr; |
919 | for (hr=0;hr<HOST_REGS;hr++) if(hr!=EXCLUDE_REG&®map1[hr]==r&®map2[hr]==r) return hr; |
920 | return -1; |
921 | } |
922 | |
53dc27f6 |
923 | // reverse reg map: mips -> host |
924 | #define RRMAP_SIZE 64 |
925 | static void make_rregs(const signed char regmap[], signed char rrmap[RRMAP_SIZE], |
926 | u_int *regs_can_change) |
927 | { |
928 | u_int r, hr, hr_can_change = 0; |
929 | memset(rrmap, -1, RRMAP_SIZE); |
930 | for (hr = 0; hr < HOST_REGS; ) |
931 | { |
932 | r = regmap[hr]; |
933 | rrmap[r & (RRMAP_SIZE - 1)] = hr; |
934 | // only add mips $1-$31+$lo, others shifted out |
935 | hr_can_change |= (uint64_t)1 << (hr + ((r - 1) & 32)); |
936 | hr++; |
937 | if (hr == EXCLUDE_REG) |
938 | hr++; |
939 | } |
940 | hr_can_change |= 1u << (rrmap[33] & 31); |
941 | hr_can_change |= 1u << (rrmap[CCREG] & 31); |
942 | hr_can_change &= ~(1u << 31); |
943 | *regs_can_change = hr_can_change; |
944 | } |
945 | |
946 | // same as get_reg, but takes rrmap |
947 | static signed char get_rreg(signed char rrmap[RRMAP_SIZE], signed char r) |
948 | { |
949 | assert(0 <= r && r < RRMAP_SIZE); |
950 | return rrmap[r]; |
951 | } |
952 | |
9de8a0c3 |
953 | static int count_free_regs(const signed char regmap[]) |
57871462 |
954 | { |
955 | int count=0; |
956 | int hr; |
957 | for(hr=0;hr<HOST_REGS;hr++) |
958 | { |
959 | if(hr!=EXCLUDE_REG) { |
960 | if(regmap[hr]<0) count++; |
961 | } |
962 | } |
963 | return count; |
964 | } |
965 | |
9de8a0c3 |
966 | static void dirty_reg(struct regstat *cur, signed char reg) |
57871462 |
967 | { |
968 | int hr; |
9de8a0c3 |
969 | if (!reg) return; |
970 | hr = get_reg(cur->regmap, reg); |
971 | if (hr >= 0) |
972 | cur->dirty |= 1<<hr; |
57871462 |
973 | } |
974 | |
40fca85b |
975 | static void set_const(struct regstat *cur, signed char reg, uint32_t value) |
57871462 |
976 | { |
977 | int hr; |
9de8a0c3 |
978 | if (!reg) return; |
979 | hr = get_reg(cur->regmap, reg); |
980 | if (hr >= 0) { |
981 | cur->isconst |= 1<<hr; |
982 | current_constmap[hr] = value; |
57871462 |
983 | } |
984 | } |
985 | |
40fca85b |
986 | static void clear_const(struct regstat *cur, signed char reg) |
57871462 |
987 | { |
988 | int hr; |
9de8a0c3 |
989 | if (!reg) return; |
990 | hr = get_reg(cur->regmap, reg); |
991 | if (hr >= 0) |
992 | cur->isconst &= ~(1<<hr); |
57871462 |
993 | } |
994 | |
9de8a0c3 |
995 | static int is_const(const struct regstat *cur, signed char reg) |
57871462 |
996 | { |
997 | int hr; |
9de8a0c3 |
998 | if (reg < 0) return 0; |
999 | if (!reg) return 1; |
1000 | hr = get_reg(cur->regmap, reg); |
1001 | if (hr >= 0) |
1002 | return (cur->isconst>>hr)&1; |
57871462 |
1003 | return 0; |
1004 | } |
40fca85b |
1005 | |
9de8a0c3 |
1006 | static uint32_t get_const(const struct regstat *cur, signed char reg) |
57871462 |
1007 | { |
1008 | int hr; |
9de8a0c3 |
1009 | if (!reg) return 0; |
1010 | hr = get_reg(cur->regmap, reg); |
1011 | if (hr >= 0) |
1012 | return current_constmap[hr]; |
1013 | |
1014 | SysPrintf("Unknown constant in r%d\n", reg); |
7c3a5182 |
1015 | abort(); |
57871462 |
1016 | } |
1017 | |
1018 | // Least soon needed registers |
1019 | // Look at the next ten instructions and see which registers |
1020 | // will be used. Try not to reallocate these. |
90f98e7c |
1021 | static void lsn(u_char hsn[], int i) |
57871462 |
1022 | { |
1023 | int j; |
1024 | int b=-1; |
1025 | for(j=0;j<9;j++) |
1026 | { |
1027 | if(i+j>=slen) { |
1028 | j=slen-i-1; |
1029 | break; |
1030 | } |
fe807a8a |
1031 | if (dops[i+j].is_ujump) |
57871462 |
1032 | { |
1033 | // Don't go past an unconditonal jump |
1034 | j++; |
1035 | break; |
1036 | } |
1037 | } |
1038 | for(;j>=0;j--) |
1039 | { |
cf95b4f0 |
1040 | if(dops[i+j].rs1) hsn[dops[i+j].rs1]=j; |
1041 | if(dops[i+j].rs2) hsn[dops[i+j].rs2]=j; |
1042 | if(dops[i+j].rt1) hsn[dops[i+j].rt1]=j; |
1043 | if(dops[i+j].rt2) hsn[dops[i+j].rt2]=j; |
1044 | if(dops[i+j].itype==STORE || dops[i+j].itype==STORELR) { |
57871462 |
1045 | // Stores can allocate zero |
cf95b4f0 |
1046 | hsn[dops[i+j].rs1]=j; |
1047 | hsn[dops[i+j].rs2]=j; |
57871462 |
1048 | } |
37387d8b |
1049 | if (ram_offset && (dops[i+j].is_load || dops[i+j].is_store)) |
1050 | hsn[ROREG] = j; |
57871462 |
1051 | // On some architectures stores need invc_ptr |
1052 | #if defined(HOST_IMM8) |
37387d8b |
1053 | if (dops[i+j].is_store) |
1054 | hsn[INVCP] = j; |
57871462 |
1055 | #endif |
cf95b4f0 |
1056 | if(i+j>=0&&(dops[i+j].itype==UJUMP||dops[i+j].itype==CJUMP||dops[i+j].itype==SJUMP)) |
57871462 |
1057 | { |
1058 | hsn[CCREG]=j; |
1059 | b=j; |
1060 | } |
1061 | } |
1062 | if(b>=0) |
1063 | { |
277718fa |
1064 | if(cinfo[i+b].ba>=start && cinfo[i+b].ba<(start+slen*4)) |
57871462 |
1065 | { |
1066 | // Follow first branch |
277718fa |
1067 | int t=(cinfo[i+b].ba-start)>>2; |
57871462 |
1068 | j=7-b;if(t+j>=slen) j=slen-t-1; |
1069 | for(;j>=0;j--) |
1070 | { |
cf95b4f0 |
1071 | if(dops[t+j].rs1) if(hsn[dops[t+j].rs1]>j+b+2) hsn[dops[t+j].rs1]=j+b+2; |
1072 | if(dops[t+j].rs2) if(hsn[dops[t+j].rs2]>j+b+2) hsn[dops[t+j].rs2]=j+b+2; |
1073 | //if(dops[t+j].rt1) if(hsn[dops[t+j].rt1]>j+b+2) hsn[dops[t+j].rt1]=j+b+2; |
1074 | //if(dops[t+j].rt2) if(hsn[dops[t+j].rt2]>j+b+2) hsn[dops[t+j].rt2]=j+b+2; |
57871462 |
1075 | } |
1076 | } |
1077 | // TODO: preferred register based on backward branch |
1078 | } |
1079 | // Delay slot should preferably not overwrite branch conditions or cycle count |
fe807a8a |
1080 | if (i > 0 && dops[i-1].is_jump) { |
cf95b4f0 |
1081 | if(dops[i-1].rs1) if(hsn[dops[i-1].rs1]>1) hsn[dops[i-1].rs1]=1; |
1082 | if(dops[i-1].rs2) if(hsn[dops[i-1].rs2]>1) hsn[dops[i-1].rs2]=1; |
57871462 |
1083 | hsn[CCREG]=1; |
1084 | // ...or hash tables |
1085 | hsn[RHASH]=1; |
1086 | hsn[RHTBL]=1; |
1087 | } |
1088 | // Coprocessor load/store needs FTEMP, even if not declared |
37387d8b |
1089 | if(dops[i].itype==C2LS) { |
57871462 |
1090 | hsn[FTEMP]=0; |
1091 | } |
33a1eda1 |
1092 | // Load/store L/R also uses FTEMP as a temporary register |
1093 | if (dops[i].itype == LOADLR || dops[i].itype == STORELR) { |
57871462 |
1094 | hsn[FTEMP]=0; |
1095 | } |
57871462 |
1096 | // Don't remove the miniht registers |
cf95b4f0 |
1097 | if(dops[i].itype==UJUMP||dops[i].itype==RJUMP) |
57871462 |
1098 | { |
1099 | hsn[RHASH]=0; |
1100 | hsn[RHTBL]=0; |
1101 | } |
1102 | } |
1103 | |
1104 | // We only want to allocate registers if we're going to use them again soon |
4149788d |
1105 | static int needed_again(int r, int i) |
57871462 |
1106 | { |
1107 | int j; |
1108 | int b=-1; |
1109 | int rn=10; |
9f51b4b9 |
1110 | |
fe807a8a |
1111 | if (i > 0 && dops[i-1].is_ujump) |
57871462 |
1112 | { |
277718fa |
1113 | if(cinfo[i-1].ba<start || cinfo[i-1].ba>start+slen*4-4) |
57871462 |
1114 | return 0; // Don't need any registers if exiting the block |
1115 | } |
1116 | for(j=0;j<9;j++) |
1117 | { |
1118 | if(i+j>=slen) { |
1119 | j=slen-i-1; |
1120 | break; |
1121 | } |
fe807a8a |
1122 | if (dops[i+j].is_ujump) |
57871462 |
1123 | { |
1124 | // Don't go past an unconditonal jump |
1125 | j++; |
1126 | break; |
1127 | } |
a5cd72d0 |
1128 | if (dops[i+j].is_exception) |
57871462 |
1129 | { |
1130 | break; |
1131 | } |
1132 | } |
1133 | for(;j>=1;j--) |
1134 | { |
cf95b4f0 |
1135 | if(dops[i+j].rs1==r) rn=j; |
1136 | if(dops[i+j].rs2==r) rn=j; |
57871462 |
1137 | if((unneeded_reg[i+j]>>r)&1) rn=10; |
cf95b4f0 |
1138 | if(i+j>=0&&(dops[i+j].itype==UJUMP||dops[i+j].itype==CJUMP||dops[i+j].itype==SJUMP)) |
57871462 |
1139 | { |
1140 | b=j; |
1141 | } |
1142 | } |
b7217e13 |
1143 | if(rn<10) return 1; |
581335b0 |
1144 | (void)b; |
57871462 |
1145 | return 0; |
1146 | } |
1147 | |
1148 | // Try to match register allocations at the end of a loop with those |
1149 | // at the beginning |
4149788d |
1150 | static int loop_reg(int i, int r, int hr) |
57871462 |
1151 | { |
1152 | int j,k; |
1153 | for(j=0;j<9;j++) |
1154 | { |
1155 | if(i+j>=slen) { |
1156 | j=slen-i-1; |
1157 | break; |
1158 | } |
fe807a8a |
1159 | if (dops[i+j].is_ujump) |
57871462 |
1160 | { |
1161 | // Don't go past an unconditonal jump |
1162 | j++; |
1163 | break; |
1164 | } |
1165 | } |
1166 | k=0; |
1167 | if(i>0){ |
cf95b4f0 |
1168 | if(dops[i-1].itype==UJUMP||dops[i-1].itype==CJUMP||dops[i-1].itype==SJUMP) |
57871462 |
1169 | k--; |
1170 | } |
1171 | for(;k<j;k++) |
1172 | { |
00fa9369 |
1173 | assert(r < 64); |
1174 | if((unneeded_reg[i+k]>>r)&1) return hr; |
cf95b4f0 |
1175 | if(i+k>=0&&(dops[i+k].itype==UJUMP||dops[i+k].itype==CJUMP||dops[i+k].itype==SJUMP)) |
57871462 |
1176 | { |
277718fa |
1177 | if(cinfo[i+k].ba>=start && cinfo[i+k].ba<(start+i*4)) |
57871462 |
1178 | { |
277718fa |
1179 | int t=(cinfo[i+k].ba-start)>>2; |
57871462 |
1180 | int reg=get_reg(regs[t].regmap_entry,r); |
1181 | if(reg>=0) return reg; |
1182 | //reg=get_reg(regs[t+1].regmap_entry,r); |
1183 | //if(reg>=0) return reg; |
1184 | } |
1185 | } |
1186 | } |
1187 | return hr; |
1188 | } |
1189 | |
1190 | |
1191 | // Allocate every register, preserving source/target regs |
4149788d |
1192 | static void alloc_all(struct regstat *cur,int i) |
57871462 |
1193 | { |
1194 | int hr; |
9f51b4b9 |
1195 | |
57871462 |
1196 | for(hr=0;hr<HOST_REGS;hr++) { |
1197 | if(hr!=EXCLUDE_REG) { |
9de8a0c3 |
1198 | if((cur->regmap[hr]!=dops[i].rs1)&&(cur->regmap[hr]!=dops[i].rs2)&& |
1199 | (cur->regmap[hr]!=dops[i].rt1)&&(cur->regmap[hr]!=dops[i].rt2)) |
57871462 |
1200 | { |
1201 | cur->regmap[hr]=-1; |
1202 | cur->dirty&=~(1<<hr); |
1203 | } |
1204 | // Don't need zeros |
9de8a0c3 |
1205 | if(cur->regmap[hr]==0) |
57871462 |
1206 | { |
1207 | cur->regmap[hr]=-1; |
1208 | cur->dirty&=~(1<<hr); |
1209 | } |
1210 | } |
1211 | } |
1212 | } |
1213 | |
d1e4ebd9 |
1214 | #ifndef NDEBUG |
1215 | static int host_tempreg_in_use; |
1216 | |
1217 | static void host_tempreg_acquire(void) |
1218 | { |
1219 | assert(!host_tempreg_in_use); |
1220 | host_tempreg_in_use = 1; |
1221 | } |
1222 | |
1223 | static void host_tempreg_release(void) |
1224 | { |
1225 | host_tempreg_in_use = 0; |
1226 | } |
1227 | #else |
1228 | static void host_tempreg_acquire(void) {} |
1229 | static void host_tempreg_release(void) {} |
1230 | #endif |
1231 | |
32631e6a |
1232 | #ifdef ASSEM_PRINT |
8062d65a |
1233 | extern void gen_interupt(); |
1234 | extern void do_insn_cmp(); |
d1e4ebd9 |
1235 | #define FUNCNAME(f) { f, " " #f } |
8062d65a |
1236 | static const struct { |
d1e4ebd9 |
1237 | void *addr; |
8062d65a |
1238 | const char *name; |
1239 | } function_names[] = { |
1240 | FUNCNAME(cc_interrupt), |
1241 | FUNCNAME(gen_interupt), |
104df9d3 |
1242 | FUNCNAME(ndrc_get_addr_ht), |
8062d65a |
1243 | FUNCNAME(jump_handler_read8), |
1244 | FUNCNAME(jump_handler_read16), |
1245 | FUNCNAME(jump_handler_read32), |
1246 | FUNCNAME(jump_handler_write8), |
1247 | FUNCNAME(jump_handler_write16), |
1248 | FUNCNAME(jump_handler_write32), |
9b495f6e |
1249 | FUNCNAME(ndrc_write_invalidate_one), |
1250 | FUNCNAME(ndrc_write_invalidate_many), |
3968e69e |
1251 | FUNCNAME(jump_to_new_pc), |
d1150cd6 |
1252 | FUNCNAME(jump_break), |
1253 | FUNCNAME(jump_break_ds), |
1254 | FUNCNAME(jump_syscall), |
1255 | FUNCNAME(jump_syscall_ds), |
a5cd72d0 |
1256 | FUNCNAME(jump_overflow), |
1257 | FUNCNAME(jump_overflow_ds), |
277718fa |
1258 | FUNCNAME(jump_addrerror), |
1259 | FUNCNAME(jump_addrerror_ds), |
81dbbf4c |
1260 | FUNCNAME(call_gteStall), |
8062d65a |
1261 | FUNCNAME(new_dyna_leave), |
1262 | FUNCNAME(pcsx_mtc0), |
1263 | FUNCNAME(pcsx_mtc0_ds), |
277718fa |
1264 | FUNCNAME(execI), |
1265 | #ifdef __aarch64__ |
1266 | FUNCNAME(do_memhandler_pre), |
1267 | FUNCNAME(do_memhandler_post), |
1268 | #endif |
32631e6a |
1269 | #ifdef DRC_DBG |
33a1eda1 |
1270 | # ifdef __aarch64__ |
1271 | FUNCNAME(do_insn_cmp_arm64), |
1272 | # else |
8062d65a |
1273 | FUNCNAME(do_insn_cmp), |
33a1eda1 |
1274 | # endif |
32631e6a |
1275 | #endif |
8062d65a |
1276 | }; |
1277 | |
d1e4ebd9 |
1278 | static const char *func_name(const void *a) |
8062d65a |
1279 | { |
1280 | int i; |
1281 | for (i = 0; i < sizeof(function_names)/sizeof(function_names[0]); i++) |
1282 | if (function_names[i].addr == a) |
1283 | return function_names[i].name; |
1284 | return ""; |
1285 | } |
a5cd72d0 |
1286 | |
1287 | static const char *fpofs_name(u_int ofs) |
1288 | { |
1289 | u_int *p = (u_int *)&dynarec_local + ofs/sizeof(u_int); |
1290 | static char buf[64]; |
1291 | switch (ofs) { |
1292 | #define ofscase(x) case LO_##x: return " ; " #x |
1293 | ofscase(next_interupt); |
de6dbc52 |
1294 | ofscase(cycle_count); |
a5cd72d0 |
1295 | ofscase(last_count); |
1296 | ofscase(pending_exception); |
1297 | ofscase(stop); |
1298 | ofscase(address); |
1299 | ofscase(lo); |
1300 | ofscase(hi); |
1301 | ofscase(PC); |
1302 | ofscase(cycle); |
1303 | ofscase(mem_rtab); |
1304 | ofscase(mem_wtab); |
1305 | ofscase(psxH_ptr); |
1306 | ofscase(invc_ptr); |
1307 | ofscase(ram_offset); |
1308 | #undef ofscase |
1309 | } |
1310 | buf[0] = 0; |
1311 | if (psxRegs.GPR.r <= p && p < &psxRegs.GPR.r[32]) |
1312 | snprintf(buf, sizeof(buf), " ; r%d", (int)(p - psxRegs.GPR.r)); |
1313 | else if (psxRegs.CP0.r <= p && p < &psxRegs.CP0.r[32]) |
1314 | snprintf(buf, sizeof(buf), " ; cp0 $%d", (int)(p - psxRegs.CP0.r)); |
1315 | else if (psxRegs.CP2D.r <= p && p < &psxRegs.CP2D.r[32]) |
1316 | snprintf(buf, sizeof(buf), " ; cp2d $%d", (int)(p - psxRegs.CP2D.r)); |
1317 | else if (psxRegs.CP2C.r <= p && p < &psxRegs.CP2C.r[32]) |
1318 | snprintf(buf, sizeof(buf), " ; cp2c $%d", (int)(p - psxRegs.CP2C.r)); |
1319 | return buf; |
1320 | } |
8062d65a |
1321 | #else |
1322 | #define func_name(x) "" |
a5cd72d0 |
1323 | #define fpofs_name(x) "" |
8062d65a |
1324 | #endif |
1325 | |
57871462 |
1326 | #ifdef __i386__ |
1327 | #include "assem_x86.c" |
1328 | #endif |
1329 | #ifdef __x86_64__ |
1330 | #include "assem_x64.c" |
1331 | #endif |
1332 | #ifdef __arm__ |
1333 | #include "assem_arm.c" |
1334 | #endif |
be516ebe |
1335 | #ifdef __aarch64__ |
1336 | #include "assem_arm64.c" |
1337 | #endif |
57871462 |
1338 | |
2a014d73 |
1339 | static void *get_trampoline(const void *f) |
1340 | { |
d9e2b173 |
1341 | struct ndrc_tramp *tramp = NDRC_WRITE_OFFSET(&ndrc->tramp); |
2a014d73 |
1342 | size_t i; |
1343 | |
d9e2b173 |
1344 | for (i = 0; i < ARRAY_SIZE(tramp->f); i++) { |
1345 | if (tramp->f[i] == f || tramp->f[i] == NULL) |
2a014d73 |
1346 | break; |
1347 | } |
d9e2b173 |
1348 | if (i == ARRAY_SIZE(tramp->f)) { |
2a014d73 |
1349 | SysPrintf("trampoline table is full, last func %p\n", f); |
1350 | abort(); |
1351 | } |
d9e2b173 |
1352 | if (tramp->f[i] == NULL) { |
1353 | start_tcache_write(&tramp->f[i], &tramp->f[i + 1]); |
1354 | tramp->f[i] = f; |
1355 | end_tcache_write(&tramp->f[i], &tramp->f[i + 1]); |
1356 | #ifdef HAVE_LIBNX |
1357 | // invalidate the RX mirror (unsure if necessary, but just in case...) |
1358 | armDCacheFlush(&ndrc->tramp.f[i], sizeof(ndrc->tramp.f[i])); |
1359 | #endif |
2a014d73 |
1360 | } |
1361 | return &ndrc->tramp.ops[i]; |
1362 | } |
1363 | |
1364 | static void emit_far_jump(const void *f) |
1365 | { |
1366 | if (can_jump_or_call(f)) { |
1367 | emit_jmp(f); |
1368 | return; |
1369 | } |
1370 | |
1371 | f = get_trampoline(f); |
1372 | emit_jmp(f); |
1373 | } |
1374 | |
1375 | static void emit_far_call(const void *f) |
1376 | { |
1377 | if (can_jump_or_call(f)) { |
1378 | emit_call(f); |
1379 | return; |
1380 | } |
1381 | |
1382 | f = get_trampoline(f); |
1383 | emit_call(f); |
1384 | } |
1385 | |
57871462 |
1386 | // Check if an address is already compiled |
1387 | // but don't return addresses which are about to expire from the cache |
4149788d |
1388 | static void *check_addr(u_int vaddr) |
57871462 |
1389 | { |
df4dc2b1 |
1390 | struct ht_entry *ht_bin = hash_table_get(vaddr); |
1391 | size_t i; |
b14b6a8f |
1392 | for (i = 0; i < ARRAY_SIZE(ht_bin->vaddr); i++) { |
df4dc2b1 |
1393 | if (ht_bin->vaddr[i] == vaddr) |
93c0345b |
1394 | if (doesnt_expire_soon(ht_bin->tcaddr[i])) |
104df9d3 |
1395 | return ht_bin->tcaddr[i]; |
57871462 |
1396 | } |
104df9d3 |
1397 | |
1398 | // refactor to get_addr_nocompile? |
1399 | u_int start_page = get_page_prev(vaddr); |
1400 | u_int page, end_page = get_page(vaddr); |
1401 | |
1402 | stat_inc(stat_jump_in_lookups); |
1403 | for (page = start_page; page <= end_page; page++) { |
1404 | const struct block_info *block; |
1405 | for (block = blocks[page]; block != NULL; block = block->next) { |
1406 | if (vaddr < block->start) |
1407 | break; |
1408 | if (block->is_dirty || vaddr >= block->start + block->len) |
1409 | continue; |
1410 | if (!doesnt_expire_soon(ndrc->translation_cache + block->tc_offs)) |
1411 | continue; |
1412 | for (i = 0; i < block->jump_in_cnt; i++) |
1413 | if (block->jump_in[i].vaddr == vaddr) |
1414 | break; |
1415 | if (i == block->jump_in_cnt) |
1416 | continue; |
1417 | |
1418 | // Update existing entry with current address |
1419 | void *addr = block->jump_in[i].addr; |
1420 | if (ht_bin->vaddr[0] == vaddr) { |
1421 | ht_bin->tcaddr[0] = addr; |
1422 | return addr; |
1423 | } |
1424 | if (ht_bin->vaddr[1] == vaddr) { |
1425 | ht_bin->tcaddr[1] = addr; |
1426 | return addr; |
1427 | } |
1428 | // Insert into hash table with low priority. |
1429 | // Don't evict existing entries, as they are probably |
1430 | // addresses that are being accessed frequently. |
1431 | if (ht_bin->vaddr[0] == -1) { |
1432 | ht_bin->vaddr[0] = vaddr; |
1433 | ht_bin->tcaddr[0] = addr; |
57871462 |
1434 | } |
104df9d3 |
1435 | else if (ht_bin->vaddr[1] == -1) { |
1436 | ht_bin->vaddr[1] = vaddr; |
1437 | ht_bin->tcaddr[1] = addr; |
1438 | } |
1439 | return addr; |
57871462 |
1440 | } |
57871462 |
1441 | } |
104df9d3 |
1442 | return NULL; |
57871462 |
1443 | } |
1444 | |
104df9d3 |
1445 | static void blocks_clear(struct block_info **head) |
1446 | { |
1447 | struct block_info *cur, *next; |
1448 | |
1449 | if ((cur = *head)) { |
1450 | *head = NULL; |
1451 | while (cur) { |
1452 | next = cur->next; |
1453 | free(cur); |
1454 | cur = next; |
1455 | } |
1456 | } |
1457 | } |
1458 | |
93c0345b |
1459 | static int blocks_remove_matching_addrs(struct block_info **head, |
1460 | u_int base_offs, int shift) |
104df9d3 |
1461 | { |
1462 | struct block_info *next; |
93c0345b |
1463 | int hit = 0; |
104df9d3 |
1464 | while (*head) { |
93c0345b |
1465 | if ((((*head)->tc_offs ^ base_offs) >> shift) == 0) { |
9b495f6e |
1466 | inv_debug("EXP: rm block %08x (tc_offs %x)\n", (*head)->start, (*head)->tc_offs); |
104df9d3 |
1467 | invalidate_block(*head); |
1468 | next = (*head)->next; |
1469 | free(*head); |
1470 | *head = next; |
1471 | stat_dec(stat_blocks); |
93c0345b |
1472 | hit = 1; |
104df9d3 |
1473 | } |
1474 | else |
1475 | { |
1476 | head = &((*head)->next); |
1477 | } |
1478 | } |
93c0345b |
1479 | return hit; |
104df9d3 |
1480 | } |
57871462 |
1481 | |
1482 | // This is called when we write to a compiled block (see do_invstub) |
b7ad2f2c |
1483 | static void unlink_jumps_vaddr_range(u_int start, u_int end) |
57871462 |
1484 | { |
104df9d3 |
1485 | u_int page, start_page = get_page(start), end_page = get_page(end - 1); |
b7ad2f2c |
1486 | int i; |
104df9d3 |
1487 | |
1488 | for (page = start_page; page <= end_page; page++) { |
b7ad2f2c |
1489 | struct jump_info *ji = jumps[page]; |
1490 | if (ji == NULL) |
1491 | continue; |
1492 | for (i = 0; i < ji->count; ) { |
1493 | if (ji->e[i].target_vaddr < start || ji->e[i].target_vaddr >= end) { |
1494 | i++; |
104df9d3 |
1495 | continue; |
1496 | } |
b7ad2f2c |
1497 | |
1498 | inv_debug("INV: rm link to %08x (tc_offs %zx)\n", ji->e[i].target_vaddr, |
1499 | (u_char *)ji->e[i].stub - ndrc->translation_cache); |
1500 | void *host_addr = find_extjump_insn(ji->e[i].stub); |
104df9d3 |
1501 | mark_clear_cache(host_addr); |
b7ad2f2c |
1502 | set_jump_target(host_addr, ji->e[i].stub); // point back to dyna_linker stub |
104df9d3 |
1503 | |
104df9d3 |
1504 | stat_dec(stat_links); |
b7ad2f2c |
1505 | ji->count--; |
1506 | if (i < ji->count) { |
1507 | ji->e[i] = ji->e[ji->count]; |
1508 | continue; |
1509 | } |
1510 | i++; |
1511 | } |
1512 | } |
1513 | } |
1514 | |
1515 | static void unlink_jumps_tc_range(struct jump_info *ji, u_int base_offs, int shift) |
1516 | { |
1517 | int i; |
1518 | if (ji == NULL) |
1519 | return; |
1520 | for (i = 0; i < ji->count; ) { |
1521 | u_int tc_offs = (u_char *)ji->e[i].stub - ndrc->translation_cache; |
1522 | if (((tc_offs ^ base_offs) >> shift) != 0) { |
1523 | i++; |
1524 | continue; |
1525 | } |
1526 | |
9b495f6e |
1527 | inv_debug("EXP: rm link to %08x (tc_offs %x)\n", ji->e[i].target_vaddr, tc_offs); |
b7ad2f2c |
1528 | stat_dec(stat_links); |
1529 | ji->count--; |
1530 | if (i < ji->count) { |
1531 | ji->e[i] = ji->e[ji->count]; |
1532 | continue; |
104df9d3 |
1533 | } |
b7ad2f2c |
1534 | i++; |
57871462 |
1535 | } |
104df9d3 |
1536 | } |
9f51b4b9 |
1537 | |
104df9d3 |
1538 | static void invalidate_block(struct block_info *block) |
1539 | { |
1540 | u_int i; |
f76eeef9 |
1541 | |
104df9d3 |
1542 | block->is_dirty = 1; |
b7ad2f2c |
1543 | unlink_jumps_vaddr_range(block->start, block->start + block->len); |
104df9d3 |
1544 | for (i = 0; i < block->jump_in_cnt; i++) |
1545 | hash_table_remove(block->jump_in[i].vaddr); |
57871462 |
1546 | } |
9be4ba64 |
1547 | |
104df9d3 |
1548 | static int invalidate_range(u_int start, u_int end, |
1549 | u32 *inv_start_ret, u32 *inv_end_ret) |
9be4ba64 |
1550 | { |
3280e616 |
1551 | struct block_info *last_block = NULL; |
104df9d3 |
1552 | u_int start_page = get_page_prev(start); |
1553 | u_int end_page = get_page(end - 1); |
1554 | u_int start_m = pmmask(start); |
ab4377be |
1555 | u_int end_m = pmmask(end - 1); |
104df9d3 |
1556 | u_int inv_start, inv_end; |
1557 | u_int blk_start_m, blk_end_m; |
1558 | u_int page; |
1559 | int hit = 0; |
1560 | |
1561 | // additional area without code (to supplement invalid_code[]), [start, end) |
9b495f6e |
1562 | // avoids excessive ndrc_write_invalidate*() calls |
104df9d3 |
1563 | inv_start = start_m & ~0xfff; |
1564 | inv_end = end_m | 0xfff; |
1565 | |
1566 | for (page = start_page; page <= end_page; page++) { |
1567 | struct block_info *block; |
1568 | for (block = blocks[page]; block != NULL; block = block->next) { |
1569 | if (block->is_dirty) |
1570 | continue; |
3280e616 |
1571 | last_block = block; |
104df9d3 |
1572 | blk_end_m = pmmask(block->start + block->len); |
1573 | if (blk_end_m <= start_m) { |
1574 | inv_start = max(inv_start, blk_end_m); |
1575 | continue; |
1576 | } |
1577 | blk_start_m = pmmask(block->start); |
1578 | if (end_m <= blk_start_m) { |
1579 | inv_end = min(inv_end, blk_start_m - 1); |
1580 | continue; |
9be4ba64 |
1581 | } |
104df9d3 |
1582 | if (!block->source) // "hack" block - leave it alone |
1583 | continue; |
1584 | |
1585 | hit++; |
1586 | invalidate_block(block); |
1587 | stat_inc(stat_inv_hits); |
9be4ba64 |
1588 | } |
9be4ba64 |
1589 | } |
104df9d3 |
1590 | |
3280e616 |
1591 | if (!hit && last_block && last_block->source) { |
1592 | // could be some leftover unused block, uselessly trapping writes |
1593 | last_block->inv_near_misses++; |
1594 | if (last_block->inv_near_misses > 128) { |
1595 | invalidate_block(last_block); |
1596 | stat_inc(stat_inv_hits); |
1597 | hit++; |
1598 | } |
1599 | } |
104df9d3 |
1600 | if (hit) { |
1601 | do_clear_cache(); |
04714958 |
1602 | mini_ht_clear(); |
104df9d3 |
1603 | } |
3280e616 |
1604 | |
104df9d3 |
1605 | if (inv_start <= (start_m & ~0xfff) && inv_end >= (start_m | 0xfff)) |
1606 | // the whole page is empty now |
1607 | mark_invalid_code(start, 1, 1); |
1608 | |
1609 | if (inv_start_ret) *inv_start_ret = inv_start | (start & 0xe0000000); |
1610 | if (inv_end_ret) *inv_end_ret = inv_end | (end & 0xe0000000); |
1611 | return hit; |
9be4ba64 |
1612 | } |
1613 | |
104df9d3 |
1614 | void new_dynarec_invalidate_range(unsigned int start, unsigned int end) |
1615 | { |
1616 | invalidate_range(start, end, NULL, NULL); |
1617 | } |
1618 | |
9b495f6e |
1619 | static void ndrc_write_invalidate_many(u_int start, u_int end) |
57871462 |
1620 | { |
9be4ba64 |
1621 | // this check is done by the caller |
1622 | //if (inv_code_start<=addr&&addr<=inv_code_end) { rhits++; return; } |
9b495f6e |
1623 | int ret = invalidate_range(start, end, &inv_code_start, &inv_code_end); |
1624 | #ifdef INV_DEBUG_W |
1625 | int invc = invalid_code[start >> 12]; |
1626 | u_int len = end - start; |
104df9d3 |
1627 | if (ret) |
9b495f6e |
1628 | printf("INV ADDR: %08x/%02x hit %d blocks\n", start, len, ret); |
104df9d3 |
1629 | else |
9b495f6e |
1630 | printf("INV ADDR: %08x/%02x miss, inv %08x-%08x invc %d->%d\n", start, len, |
1631 | inv_code_start, inv_code_end, invc, invalid_code[start >> 12]); |
1632 | check_for_block_changes(start, end); |
1633 | #endif |
ece032e6 |
1634 | stat_inc(stat_inv_addr_calls); |
9b495f6e |
1635 | (void)ret; |
1636 | } |
1637 | |
1638 | void ndrc_write_invalidate_one(u_int addr) |
1639 | { |
1640 | ndrc_write_invalidate_many(addr, addr + 4); |
57871462 |
1641 | } |
9be4ba64 |
1642 | |
dd3a91a1 |
1643 | // This is called when loading a save state. |
1644 | // Anything could have changed, so invalidate everything. |
104df9d3 |
1645 | void new_dynarec_invalidate_all_pages(void) |
57871462 |
1646 | { |
104df9d3 |
1647 | struct block_info *block; |
581335b0 |
1648 | u_int page; |
104df9d3 |
1649 | for (page = 0; page < ARRAY_SIZE(blocks); page++) { |
1650 | for (block = blocks[page]; block != NULL; block = block->next) { |
1651 | if (block->is_dirty) |
1652 | continue; |
1653 | if (!block->source) // hack block? |
1654 | continue; |
1655 | invalidate_block(block); |
1656 | } |
1657 | } |
1658 | |
919981d0 |
1659 | do_clear_cache(); |
04714958 |
1660 | mini_ht_clear(); |
57871462 |
1661 | } |
1662 | |
1663 | // Add an entry to jump_out after making a link |
104df9d3 |
1664 | // src should point to code by emit_extjump() |
b7ad2f2c |
1665 | void ndrc_add_jump_out(u_int vaddr, void *src) |
57871462 |
1666 | { |
b7ad2f2c |
1667 | inv_debug("ndrc_add_jump_out: %p -> %x\n", src, vaddr); |
1668 | u_int page = get_page(vaddr); |
1669 | struct jump_info *ji; |
1670 | |
104df9d3 |
1671 | stat_inc(stat_links); |
b7ad2f2c |
1672 | check_extjump2(src); |
1673 | ji = jumps[page]; |
1674 | if (ji == NULL) { |
1675 | ji = malloc(sizeof(*ji) + sizeof(ji->e[0]) * 16); |
1676 | ji->alloc = 16; |
1677 | ji->count = 0; |
1678 | } |
1679 | else if (ji->count >= ji->alloc) { |
1680 | ji->alloc += 16; |
1681 | ji = realloc(ji, sizeof(*ji) + sizeof(ji->e[0]) * ji->alloc); |
1682 | } |
1683 | jumps[page] = ji; |
1684 | ji->e[ji->count].target_vaddr = vaddr; |
1685 | ji->e[ji->count].stub = src; |
1686 | ji->count++; |
57871462 |
1687 | } |
1688 | |
8062d65a |
1689 | /* Register allocation */ |
1690 | |
90f98e7c |
1691 | static void alloc_set(struct regstat *cur, int reg, int hr) |
1692 | { |
1693 | cur->regmap[hr] = reg; |
1694 | cur->dirty &= ~(1u << hr); |
1695 | cur->isconst &= ~(1u << hr); |
1696 | cur->noevict |= 1u << hr; |
1697 | } |
1698 | |
1699 | static void evict_alloc_reg(struct regstat *cur, int i, int reg, int preferred_hr) |
1700 | { |
1701 | u_char hsn[MAXREG+1]; |
1702 | int j, r, hr; |
1703 | memset(hsn, 10, sizeof(hsn)); |
1704 | lsn(hsn, i); |
1705 | //printf("hsn(%x): %d %d %d %d %d %d %d\n",start+i*4,hsn[cur->regmap[0]&63],hsn[cur->regmap[1]&63],hsn[cur->regmap[2]&63],hsn[cur->regmap[3]&63],hsn[cur->regmap[5]&63],hsn[cur->regmap[6]&63],hsn[cur->regmap[7]&63]); |
1706 | if(i>0) { |
1707 | // Don't evict the cycle count at entry points, otherwise the entry |
1708 | // stub will have to write it. |
1709 | if(dops[i].bt&&hsn[CCREG]>2) hsn[CCREG]=2; |
1710 | if (i>1 && hsn[CCREG] > 2 && dops[i-2].is_jump) hsn[CCREG]=2; |
1711 | for(j=10;j>=3;j--) |
1712 | { |
1713 | // Alloc preferred register if available |
1714 | if (!((cur->noevict >> preferred_hr) & 1) |
1715 | && hsn[cur->regmap[preferred_hr]] == j) |
1716 | { |
1717 | alloc_set(cur, reg, preferred_hr); |
1718 | return; |
1719 | } |
1720 | for(r=1;r<=MAXREG;r++) |
1721 | { |
1722 | if(hsn[r]==j&&r!=dops[i-1].rs1&&r!=dops[i-1].rs2&&r!=dops[i-1].rt1&&r!=dops[i-1].rt2) { |
1723 | for(hr=0;hr<HOST_REGS;hr++) { |
1724 | if (hr == EXCLUDE_REG || ((cur->noevict >> hr) & 1)) |
1725 | continue; |
1726 | if(hr!=HOST_CCREG||j<hsn[CCREG]) { |
1727 | if(cur->regmap[hr]==r) { |
1728 | alloc_set(cur, reg, hr); |
1729 | return; |
1730 | } |
1731 | } |
1732 | } |
1733 | } |
1734 | } |
1735 | } |
1736 | } |
1737 | for(j=10;j>=0;j--) |
1738 | { |
1739 | for(r=1;r<=MAXREG;r++) |
1740 | { |
1741 | if(hsn[r]==j) { |
1742 | for(hr=0;hr<HOST_REGS;hr++) { |
1743 | if (hr == EXCLUDE_REG || ((cur->noevict >> hr) & 1)) |
1744 | continue; |
1745 | if(cur->regmap[hr]==r) { |
1746 | alloc_set(cur, reg, hr); |
1747 | return; |
1748 | } |
1749 | } |
1750 | } |
1751 | } |
1752 | } |
1753 | SysPrintf("This shouldn't happen (evict_alloc_reg)\n"); |
1754 | abort(); |
1755 | } |
1756 | |
8062d65a |
1757 | // Note: registers are allocated clean (unmodified state) |
1758 | // if you intend to modify the register, you must call dirty_reg(). |
1759 | static void alloc_reg(struct regstat *cur,int i,signed char reg) |
1760 | { |
1761 | int r,hr; |
b7ec323c |
1762 | int preferred_reg = PREFERRED_REG_FIRST |
1763 | + reg % (PREFERRED_REG_LAST - PREFERRED_REG_FIRST + 1); |
1764 | if (reg == CCREG) preferred_reg = HOST_CCREG; |
1765 | if (reg == PTEMP || reg == FTEMP) preferred_reg = 12; |
1766 | assert(PREFERRED_REG_FIRST != EXCLUDE_REG && EXCLUDE_REG != HOST_REGS); |
53358c1d |
1767 | assert(reg >= 0); |
8062d65a |
1768 | |
1769 | // Don't allocate unused registers |
1770 | if((cur->u>>reg)&1) return; |
1771 | |
1772 | // see if it's already allocated |
90f98e7c |
1773 | if ((hr = get_reg(cur->regmap, reg)) >= 0) { |
1774 | cur->noevict |= 1u << hr; |
53358c1d |
1775 | return; |
90f98e7c |
1776 | } |
8062d65a |
1777 | |
1778 | // Keep the same mapping if the register was already allocated in a loop |
1779 | preferred_reg = loop_reg(i,reg,preferred_reg); |
1780 | |
1781 | // Try to allocate the preferred register |
90f98e7c |
1782 | if (cur->regmap[preferred_reg] == -1) { |
1783 | alloc_set(cur, reg, preferred_reg); |
8062d65a |
1784 | return; |
1785 | } |
1786 | r=cur->regmap[preferred_reg]; |
1787 | assert(r < 64); |
1788 | if((cur->u>>r)&1) { |
90f98e7c |
1789 | alloc_set(cur, reg, preferred_reg); |
8062d65a |
1790 | return; |
1791 | } |
1792 | |
1793 | // Clear any unneeded registers |
1794 | // We try to keep the mapping consistent, if possible, because it |
1795 | // makes branches easier (especially loops). So we try to allocate |
1796 | // first (see above) before removing old mappings. If this is not |
1797 | // possible then go ahead and clear out the registers that are no |
1798 | // longer needed. |
1799 | for(hr=0;hr<HOST_REGS;hr++) |
1800 | { |
1801 | r=cur->regmap[hr]; |
1802 | if(r>=0) { |
1803 | assert(r < 64); |
1804 | if((cur->u>>r)&1) {cur->regmap[hr]=-1;break;} |
1805 | } |
1806 | } |
b7ec323c |
1807 | |
8062d65a |
1808 | // Try to allocate any available register, but prefer |
1809 | // registers that have not been used recently. |
b7ec323c |
1810 | if (i > 0) { |
1811 | for (hr = PREFERRED_REG_FIRST; ; ) { |
1812 | if (cur->regmap[hr] < 0) { |
1813 | int oldreg = regs[i-1].regmap[hr]; |
1814 | if (oldreg < 0 || (oldreg != dops[i-1].rs1 && oldreg != dops[i-1].rs2 |
1815 | && oldreg != dops[i-1].rt1 && oldreg != dops[i-1].rt2)) |
1816 | { |
90f98e7c |
1817 | alloc_set(cur, reg, hr); |
8062d65a |
1818 | return; |
1819 | } |
1820 | } |
b7ec323c |
1821 | hr++; |
1822 | if (hr == EXCLUDE_REG) |
1823 | hr++; |
1824 | if (hr == HOST_REGS) |
1825 | hr = 0; |
1826 | if (hr == PREFERRED_REG_FIRST) |
1827 | break; |
8062d65a |
1828 | } |
1829 | } |
b7ec323c |
1830 | |
8062d65a |
1831 | // Try to allocate any available register |
b7ec323c |
1832 | for (hr = PREFERRED_REG_FIRST; ; ) { |
1833 | if (cur->regmap[hr] < 0) { |
90f98e7c |
1834 | alloc_set(cur, reg, hr); |
8062d65a |
1835 | return; |
1836 | } |
b7ec323c |
1837 | hr++; |
1838 | if (hr == EXCLUDE_REG) |
1839 | hr++; |
1840 | if (hr == HOST_REGS) |
1841 | hr = 0; |
1842 | if (hr == PREFERRED_REG_FIRST) |
1843 | break; |
8062d65a |
1844 | } |
1845 | |
1846 | // Ok, now we have to evict someone |
1847 | // Pick a register we hopefully won't need soon |
90f98e7c |
1848 | evict_alloc_reg(cur, i, reg, preferred_reg); |
8062d65a |
1849 | } |
1850 | |
1851 | // Allocate a temporary register. This is done without regard to |
1852 | // dirty status or whether the register we request is on the unneeded list |
1853 | // Note: This will only allocate one register, even if called multiple times |
1854 | static void alloc_reg_temp(struct regstat *cur,int i,signed char reg) |
1855 | { |
1856 | int r,hr; |
8062d65a |
1857 | |
1858 | // see if it's already allocated |
90f98e7c |
1859 | for (hr = 0; hr < HOST_REGS; hr++) |
8062d65a |
1860 | { |
90f98e7c |
1861 | if (hr != EXCLUDE_REG && cur->regmap[hr] == reg) { |
1862 | cur->noevict |= 1u << hr; |
1863 | return; |
1864 | } |
8062d65a |
1865 | } |
1866 | |
1867 | // Try to allocate any available register |
1868 | for(hr=HOST_REGS-1;hr>=0;hr--) { |
1869 | if(hr!=EXCLUDE_REG&&cur->regmap[hr]==-1) { |
90f98e7c |
1870 | alloc_set(cur, reg, hr); |
8062d65a |
1871 | return; |
1872 | } |
1873 | } |
1874 | |
1875 | // Find an unneeded register |
1876 | for(hr=HOST_REGS-1;hr>=0;hr--) |
1877 | { |
1878 | r=cur->regmap[hr]; |
1879 | if(r>=0) { |
1880 | assert(r < 64); |
1881 | if((cur->u>>r)&1) { |
1882 | if(i==0||((unneeded_reg[i-1]>>r)&1)) { |
90f98e7c |
1883 | alloc_set(cur, reg, hr); |
8062d65a |
1884 | return; |
1885 | } |
1886 | } |
1887 | } |
1888 | } |
1889 | |
1890 | // Ok, now we have to evict someone |
1891 | // Pick a register we hopefully won't need soon |
90f98e7c |
1892 | evict_alloc_reg(cur, i, reg, 0); |
8062d65a |
1893 | } |
1894 | |
ad49de89 |
1895 | static void mov_alloc(struct regstat *current,int i) |
57871462 |
1896 | { |
cf95b4f0 |
1897 | if (dops[i].rs1 == HIREG || dops[i].rs1 == LOREG) { |
9a3ccfeb |
1898 | alloc_cc(current,i); // for stalls |
1899 | dirty_reg(current,CCREG); |
32631e6a |
1900 | } |
1901 | |
57871462 |
1902 | // Note: Don't need to actually alloc the source registers |
cf95b4f0 |
1903 | //alloc_reg(current,i,dops[i].rs1); |
1904 | alloc_reg(current,i,dops[i].rt1); |
ad49de89 |
1905 | |
cf95b4f0 |
1906 | clear_const(current,dops[i].rs1); |
1907 | clear_const(current,dops[i].rt1); |
1908 | dirty_reg(current,dops[i].rt1); |
57871462 |
1909 | } |
1910 | |
ad49de89 |
1911 | static void shiftimm_alloc(struct regstat *current,int i) |
57871462 |
1912 | { |
cf95b4f0 |
1913 | if(dops[i].opcode2<=0x3) // SLL/SRL/SRA |
57871462 |
1914 | { |
cf95b4f0 |
1915 | if(dops[i].rt1) { |
1916 | if(dops[i].rs1&&needed_again(dops[i].rs1,i)) alloc_reg(current,i,dops[i].rs1); |
53dc27f6 |
1917 | else dops[i].use_lt1=!!dops[i].rs1; |
cf95b4f0 |
1918 | alloc_reg(current,i,dops[i].rt1); |
1919 | dirty_reg(current,dops[i].rt1); |
1920 | if(is_const(current,dops[i].rs1)) { |
1921 | int v=get_const(current,dops[i].rs1); |
277718fa |
1922 | if(dops[i].opcode2==0x00) set_const(current,dops[i].rt1,v<<cinfo[i].imm); |
1923 | if(dops[i].opcode2==0x02) set_const(current,dops[i].rt1,(u_int)v>>cinfo[i].imm); |
1924 | if(dops[i].opcode2==0x03) set_const(current,dops[i].rt1,v>>cinfo[i].imm); |
dc49e339 |
1925 | } |
cf95b4f0 |
1926 | else clear_const(current,dops[i].rt1); |
57871462 |
1927 | } |
1928 | } |
dc49e339 |
1929 | else |
1930 | { |
cf95b4f0 |
1931 | clear_const(current,dops[i].rs1); |
1932 | clear_const(current,dops[i].rt1); |
dc49e339 |
1933 | } |
1934 | |
cf95b4f0 |
1935 | if(dops[i].opcode2>=0x38&&dops[i].opcode2<=0x3b) // DSLL/DSRL/DSRA |
57871462 |
1936 | { |
9c45ca93 |
1937 | assert(0); |
57871462 |
1938 | } |
cf95b4f0 |
1939 | if(dops[i].opcode2==0x3c) // DSLL32 |
57871462 |
1940 | { |
9c45ca93 |
1941 | assert(0); |
57871462 |
1942 | } |
cf95b4f0 |
1943 | if(dops[i].opcode2==0x3e) // DSRL32 |
57871462 |
1944 | { |
9c45ca93 |
1945 | assert(0); |
57871462 |
1946 | } |
cf95b4f0 |
1947 | if(dops[i].opcode2==0x3f) // DSRA32 |
57871462 |
1948 | { |
9c45ca93 |
1949 | assert(0); |
57871462 |
1950 | } |
1951 | } |
1952 | |
ad49de89 |
1953 | static void shift_alloc(struct regstat *current,int i) |
57871462 |
1954 | { |
cf95b4f0 |
1955 | if(dops[i].rt1) { |
cf95b4f0 |
1956 | if(dops[i].rs1) alloc_reg(current,i,dops[i].rs1); |
1957 | if(dops[i].rs2) alloc_reg(current,i,dops[i].rs2); |
1958 | alloc_reg(current,i,dops[i].rt1); |
1959 | if(dops[i].rt1==dops[i].rs2) { |
e1190b87 |
1960 | alloc_reg_temp(current,i,-1); |
277718fa |
1961 | cinfo[i].min_free_regs=1; |
e1190b87 |
1962 | } |
cf95b4f0 |
1963 | clear_const(current,dops[i].rs1); |
1964 | clear_const(current,dops[i].rs2); |
1965 | clear_const(current,dops[i].rt1); |
1966 | dirty_reg(current,dops[i].rt1); |
57871462 |
1967 | } |
1968 | } |
1969 | |
ad49de89 |
1970 | static void alu_alloc(struct regstat *current,int i) |
57871462 |
1971 | { |
cf95b4f0 |
1972 | if(dops[i].opcode2>=0x20&&dops[i].opcode2<=0x23) { // ADD/ADDU/SUB/SUBU |
1973 | if(dops[i].rt1) { |
1974 | if(dops[i].rs1&&dops[i].rs2) { |
1975 | alloc_reg(current,i,dops[i].rs1); |
1976 | alloc_reg(current,i,dops[i].rs2); |
57871462 |
1977 | } |
1978 | else { |
cf95b4f0 |
1979 | if(dops[i].rs1&&needed_again(dops[i].rs1,i)) alloc_reg(current,i,dops[i].rs1); |
1980 | if(dops[i].rs2&&needed_again(dops[i].rs2,i)) alloc_reg(current,i,dops[i].rs2); |
57871462 |
1981 | } |
cf95b4f0 |
1982 | alloc_reg(current,i,dops[i].rt1); |
57871462 |
1983 | } |
277718fa |
1984 | if (dops[i].may_except) { |
90f98e7c |
1985 | alloc_cc_optional(current, i); // for exceptions |
277718fa |
1986 | alloc_reg_temp(current, i, -1); |
1987 | cinfo[i].min_free_regs = 1; |
a5cd72d0 |
1988 | } |
57871462 |
1989 | } |
277718fa |
1990 | else if(dops[i].opcode2==0x2a||dops[i].opcode2==0x2b) { // SLT/SLTU |
cf95b4f0 |
1991 | if(dops[i].rt1) { |
1992 | alloc_reg(current,i,dops[i].rs1); |
1993 | alloc_reg(current,i,dops[i].rs2); |
1994 | alloc_reg(current,i,dops[i].rt1); |
57871462 |
1995 | } |
57871462 |
1996 | } |
277718fa |
1997 | else if(dops[i].opcode2>=0x24&&dops[i].opcode2<=0x27) { // AND/OR/XOR/NOR |
cf95b4f0 |
1998 | if(dops[i].rt1) { |
1999 | if(dops[i].rs1&&dops[i].rs2) { |
2000 | alloc_reg(current,i,dops[i].rs1); |
2001 | alloc_reg(current,i,dops[i].rs2); |
57871462 |
2002 | } |
2003 | else |
2004 | { |
cf95b4f0 |
2005 | if(dops[i].rs1&&needed_again(dops[i].rs1,i)) alloc_reg(current,i,dops[i].rs1); |
2006 | if(dops[i].rs2&&needed_again(dops[i].rs2,i)) alloc_reg(current,i,dops[i].rs2); |
57871462 |
2007 | } |
cf95b4f0 |
2008 | alloc_reg(current,i,dops[i].rt1); |
57871462 |
2009 | } |
2010 | } |
cf95b4f0 |
2011 | clear_const(current,dops[i].rs1); |
2012 | clear_const(current,dops[i].rs2); |
2013 | clear_const(current,dops[i].rt1); |
2014 | dirty_reg(current,dops[i].rt1); |
57871462 |
2015 | } |
2016 | |
ad49de89 |
2017 | static void imm16_alloc(struct regstat *current,int i) |
57871462 |
2018 | { |
cf95b4f0 |
2019 | if(dops[i].rs1&&needed_again(dops[i].rs1,i)) alloc_reg(current,i,dops[i].rs1); |
53dc27f6 |
2020 | else dops[i].use_lt1=!!dops[i].rs1; |
cf95b4f0 |
2021 | if(dops[i].rt1) alloc_reg(current,i,dops[i].rt1); |
a5cd72d0 |
2022 | if(dops[i].opcode==0x0a||dops[i].opcode==0x0b) { // SLTI/SLTIU |
cf95b4f0 |
2023 | clear_const(current,dops[i].rs1); |
2024 | clear_const(current,dops[i].rt1); |
57871462 |
2025 | } |
cf95b4f0 |
2026 | else if(dops[i].opcode>=0x0c&&dops[i].opcode<=0x0e) { // ANDI/ORI/XORI |
2027 | if(is_const(current,dops[i].rs1)) { |
2028 | int v=get_const(current,dops[i].rs1); |
277718fa |
2029 | if(dops[i].opcode==0x0c) set_const(current,dops[i].rt1,v&cinfo[i].imm); |
2030 | if(dops[i].opcode==0x0d) set_const(current,dops[i].rt1,v|cinfo[i].imm); |
2031 | if(dops[i].opcode==0x0e) set_const(current,dops[i].rt1,v^cinfo[i].imm); |
57871462 |
2032 | } |
cf95b4f0 |
2033 | else clear_const(current,dops[i].rt1); |
57871462 |
2034 | } |
cf95b4f0 |
2035 | else if(dops[i].opcode==0x08||dops[i].opcode==0x09) { // ADDI/ADDIU |
2036 | if(is_const(current,dops[i].rs1)) { |
2037 | int v=get_const(current,dops[i].rs1); |
277718fa |
2038 | set_const(current,dops[i].rt1,v+cinfo[i].imm); |
57871462 |
2039 | } |
cf95b4f0 |
2040 | else clear_const(current,dops[i].rt1); |
277718fa |
2041 | if (dops[i].may_except) { |
90f98e7c |
2042 | alloc_cc_optional(current, i); // for exceptions |
277718fa |
2043 | alloc_reg_temp(current, i, -1); |
2044 | cinfo[i].min_free_regs = 1; |
a5cd72d0 |
2045 | } |
57871462 |
2046 | } |
2047 | else { |
277718fa |
2048 | set_const(current,dops[i].rt1,cinfo[i].imm<<16); // LUI |
57871462 |
2049 | } |
cf95b4f0 |
2050 | dirty_reg(current,dops[i].rt1); |
57871462 |
2051 | } |
2052 | |
ad49de89 |
2053 | static void load_alloc(struct regstat *current,int i) |
57871462 |
2054 | { |
277718fa |
2055 | int need_temp = 0; |
cf95b4f0 |
2056 | clear_const(current,dops[i].rt1); |
2057 | //if(dops[i].rs1!=dops[i].rt1&&needed_again(dops[i].rs1,i)) clear_const(current,dops[i].rs1); // Does this help or hurt? |
2058 | if(!dops[i].rs1) current->u&=~1LL; // Allow allocating r0 if it's the source register |
37387d8b |
2059 | if (needed_again(dops[i].rs1, i)) |
2060 | alloc_reg(current, i, dops[i].rs1); |
2061 | if (ram_offset) |
2062 | alloc_reg(current, i, ROREG); |
277718fa |
2063 | if (dops[i].may_except) { |
90f98e7c |
2064 | alloc_cc_optional(current, i); // for exceptions |
277718fa |
2065 | need_temp = 1; |
2066 | } |
cf95b4f0 |
2067 | if(dops[i].rt1&&!((current->u>>dops[i].rt1)&1)) { |
2068 | alloc_reg(current,i,dops[i].rt1); |
a5cd72d0 |
2069 | assert(get_reg_w(current->regmap, dops[i].rt1)>=0); |
cf95b4f0 |
2070 | dirty_reg(current,dops[i].rt1); |
57871462 |
2071 | // LWL/LWR need a temporary register for the old value |
cf95b4f0 |
2072 | if(dops[i].opcode==0x22||dops[i].opcode==0x26) |
57871462 |
2073 | { |
2074 | alloc_reg(current,i,FTEMP); |
277718fa |
2075 | need_temp = 1; |
57871462 |
2076 | } |
2077 | } |
2078 | else |
2079 | { |
373d1d07 |
2080 | // Load to r0 or unneeded register (dummy load) |
57871462 |
2081 | // but we still need a register to calculate the address |
cf95b4f0 |
2082 | if(dops[i].opcode==0x22||dops[i].opcode==0x26) |
535d208a |
2083 | alloc_reg(current,i,FTEMP); // LWL/LWR need another temporary |
277718fa |
2084 | need_temp = 1; |
2085 | } |
2086 | if (need_temp) { |
2087 | alloc_reg_temp(current, i, -1); |
2088 | cinfo[i].min_free_regs = 1; |
57871462 |
2089 | } |
2090 | } |
2091 | |
90f98e7c |
2092 | // this may eat up to 7 registers |
2093 | static void store_alloc(struct regstat *current, int i) |
57871462 |
2094 | { |
cf95b4f0 |
2095 | clear_const(current,dops[i].rs2); |
2096 | if(!(dops[i].rs2)) current->u&=~1LL; // Allow allocating r0 if necessary |
2097 | if(needed_again(dops[i].rs1,i)) alloc_reg(current,i,dops[i].rs1); |
2098 | alloc_reg(current,i,dops[i].rs2); |
37387d8b |
2099 | if (ram_offset) |
2100 | alloc_reg(current, i, ROREG); |
57871462 |
2101 | #if defined(HOST_IMM8) |
2102 | // On CPUs without 32-bit immediates we need a pointer to invalid_code |
37387d8b |
2103 | alloc_reg(current, i, INVCP); |
57871462 |
2104 | #endif |
277718fa |
2105 | if (dops[i].opcode == 0x2a || dops[i].opcode == 0x2e) { // SWL/SWL |
57871462 |
2106 | alloc_reg(current,i,FTEMP); |
2107 | } |
90f98e7c |
2108 | if (dops[i].may_except) |
2109 | alloc_cc_optional(current, i); // for exceptions |
57871462 |
2110 | // We need a temporary register for address generation |
2111 | alloc_reg_temp(current,i,-1); |
277718fa |
2112 | cinfo[i].min_free_regs=1; |
57871462 |
2113 | } |
2114 | |
90f98e7c |
2115 | static void c2ls_alloc(struct regstat *current, int i) |
b9b61529 |
2116 | { |
cf95b4f0 |
2117 | clear_const(current,dops[i].rt1); |
2118 | if(needed_again(dops[i].rs1,i)) alloc_reg(current,i,dops[i].rs1); |
b9b61529 |
2119 | alloc_reg(current,i,FTEMP); |
37387d8b |
2120 | if (ram_offset) |
2121 | alloc_reg(current, i, ROREG); |
b9b61529 |
2122 | #if defined(HOST_IMM8) |
2123 | // On CPUs without 32-bit immediates we need a pointer to invalid_code |
37387d8b |
2124 | if (dops[i].opcode == 0x3a) // SWC2 |
b9b61529 |
2125 | alloc_reg(current,i,INVCP); |
2126 | #endif |
90f98e7c |
2127 | if (dops[i].may_except) |
2128 | alloc_cc_optional(current, i); // for exceptions |
b9b61529 |
2129 | // We need a temporary register for address generation |
2130 | alloc_reg_temp(current,i,-1); |
277718fa |
2131 | cinfo[i].min_free_regs=1; |
b9b61529 |
2132 | } |
2133 | |
57871462 |
2134 | #ifndef multdiv_alloc |
4149788d |
2135 | static void multdiv_alloc(struct regstat *current,int i) |
57871462 |
2136 | { |
2137 | // case 0x18: MULT |
2138 | // case 0x19: MULTU |
2139 | // case 0x1A: DIV |
2140 | // case 0x1B: DIVU |
cf95b4f0 |
2141 | clear_const(current,dops[i].rs1); |
2142 | clear_const(current,dops[i].rs2); |
32631e6a |
2143 | alloc_cc(current,i); // for stalls |
90f98e7c |
2144 | dirty_reg(current,CCREG); |
4ee246ed |
2145 | current->u &= ~(1ull << HIREG); |
2146 | current->u &= ~(1ull << LOREG); |
2147 | alloc_reg(current, i, HIREG); |
2148 | alloc_reg(current, i, LOREG); |
2149 | dirty_reg(current, HIREG); |
2150 | dirty_reg(current, LOREG); |
2151 | if ((dops[i].opcode2 & 0x3e) == 0x1a || (dops[i].rs1 && dops[i].rs2)) // div(u) |
57871462 |
2152 | { |
4ee246ed |
2153 | alloc_reg(current, i, dops[i].rs1); |
2154 | alloc_reg(current, i, dops[i].rs2); |
57871462 |
2155 | } |
4ee246ed |
2156 | // else multiply by zero is zero |
57871462 |
2157 | } |
2158 | #endif |
2159 | |
4149788d |
2160 | static void cop0_alloc(struct regstat *current,int i) |
57871462 |
2161 | { |
cf95b4f0 |
2162 | if(dops[i].opcode2==0) // MFC0 |
57871462 |
2163 | { |
cf95b4f0 |
2164 | if(dops[i].rt1) { |
2165 | clear_const(current,dops[i].rt1); |
cf95b4f0 |
2166 | alloc_reg(current,i,dops[i].rt1); |
2167 | dirty_reg(current,dops[i].rt1); |
57871462 |
2168 | } |
2169 | } |
cf95b4f0 |
2170 | else if(dops[i].opcode2==4) // MTC0 |
57871462 |
2171 | { |
de6dbc52 |
2172 | if (((source[i]>>11)&0x1e) == 12) { |
2173 | alloc_cc(current, i); |
2174 | dirty_reg(current, CCREG); |
2175 | } |
cf95b4f0 |
2176 | if(dops[i].rs1){ |
2177 | clear_const(current,dops[i].rs1); |
2178 | alloc_reg(current,i,dops[i].rs1); |
57871462 |
2179 | alloc_all(current,i); |
2180 | } |
2181 | else { |
2182 | alloc_all(current,i); // FIXME: Keep r0 |
2183 | current->u&=~1LL; |
2184 | alloc_reg(current,i,0); |
2185 | } |
277718fa |
2186 | cinfo[i].min_free_regs = HOST_REGS; |
57871462 |
2187 | } |
a5cd72d0 |
2188 | } |
2189 | |
2190 | static void rfe_alloc(struct regstat *current, int i) |
2191 | { |
2192 | alloc_all(current, i); |
277718fa |
2193 | cinfo[i].min_free_regs = HOST_REGS; |
57871462 |
2194 | } |
2195 | |
81dbbf4c |
2196 | static void cop2_alloc(struct regstat *current,int i) |
57871462 |
2197 | { |
cf95b4f0 |
2198 | if (dops[i].opcode2 < 3) // MFC2/CFC2 |
57871462 |
2199 | { |
81dbbf4c |
2200 | alloc_cc(current,i); // for stalls |
2201 | dirty_reg(current,CCREG); |
cf95b4f0 |
2202 | if(dops[i].rt1){ |
2203 | clear_const(current,dops[i].rt1); |
2204 | alloc_reg(current,i,dops[i].rt1); |
2205 | dirty_reg(current,dops[i].rt1); |
57871462 |
2206 | } |
57871462 |
2207 | } |
cf95b4f0 |
2208 | else if (dops[i].opcode2 > 3) // MTC2/CTC2 |
57871462 |
2209 | { |
cf95b4f0 |
2210 | if(dops[i].rs1){ |
2211 | clear_const(current,dops[i].rs1); |
2212 | alloc_reg(current,i,dops[i].rs1); |
57871462 |
2213 | } |
2214 | else { |
2215 | current->u&=~1LL; |
2216 | alloc_reg(current,i,0); |
57871462 |
2217 | } |
2218 | } |
81dbbf4c |
2219 | alloc_reg_temp(current,i,-1); |
277718fa |
2220 | cinfo[i].min_free_regs=1; |
57871462 |
2221 | } |
00fa9369 |
2222 | |
4149788d |
2223 | static void c2op_alloc(struct regstat *current,int i) |
b9b61529 |
2224 | { |
81dbbf4c |
2225 | alloc_cc(current,i); // for stalls |
2226 | dirty_reg(current,CCREG); |
b9b61529 |
2227 | alloc_reg_temp(current,i,-1); |
2228 | } |
57871462 |
2229 | |
4149788d |
2230 | static void syscall_alloc(struct regstat *current,int i) |
57871462 |
2231 | { |
2232 | alloc_cc(current,i); |
2233 | dirty_reg(current,CCREG); |
2234 | alloc_all(current,i); |
277718fa |
2235 | cinfo[i].min_free_regs=HOST_REGS; |
57871462 |
2236 | current->isconst=0; |
2237 | } |
2238 | |
4149788d |
2239 | static void delayslot_alloc(struct regstat *current,int i) |
57871462 |
2240 | { |
cf95b4f0 |
2241 | switch(dops[i].itype) { |
57871462 |
2242 | case UJUMP: |
2243 | case CJUMP: |
2244 | case SJUMP: |
2245 | case RJUMP: |
57871462 |
2246 | case SYSCALL: |
7139f3c8 |
2247 | case HLECALL: |
57871462 |
2248 | case IMM16: |
2249 | imm16_alloc(current,i); |
2250 | break; |
2251 | case LOAD: |
2252 | case LOADLR: |
2253 | load_alloc(current,i); |
2254 | break; |
2255 | case STORE: |
2256 | case STORELR: |
2257 | store_alloc(current,i); |
2258 | break; |
2259 | case ALU: |
2260 | alu_alloc(current,i); |
2261 | break; |
2262 | case SHIFT: |
2263 | shift_alloc(current,i); |
2264 | break; |
2265 | case MULTDIV: |
2266 | multdiv_alloc(current,i); |
2267 | break; |
2268 | case SHIFTIMM: |
2269 | shiftimm_alloc(current,i); |
2270 | break; |
2271 | case MOV: |
2272 | mov_alloc(current,i); |
2273 | break; |
2274 | case COP0: |
2275 | cop0_alloc(current,i); |
2276 | break; |
a5cd72d0 |
2277 | case RFE: |
2278 | rfe_alloc(current,i); |
81dbbf4c |
2279 | break; |
b9b61529 |
2280 | case COP2: |
81dbbf4c |
2281 | cop2_alloc(current,i); |
57871462 |
2282 | break; |
b9b61529 |
2283 | case C2LS: |
2284 | c2ls_alloc(current,i); |
2285 | break; |
b9b61529 |
2286 | case C2OP: |
2287 | c2op_alloc(current,i); |
2288 | break; |
57871462 |
2289 | } |
2290 | } |
2291 | |
b14b6a8f |
2292 | static void add_stub(enum stub_type type, void *addr, void *retaddr, |
2293 | u_int a, uintptr_t b, uintptr_t c, u_int d, u_int e) |
2294 | { |
d1e4ebd9 |
2295 | assert(stubcount < ARRAY_SIZE(stubs)); |
b14b6a8f |
2296 | stubs[stubcount].type = type; |
2297 | stubs[stubcount].addr = addr; |
2298 | stubs[stubcount].retaddr = retaddr; |
2299 | stubs[stubcount].a = a; |
2300 | stubs[stubcount].b = b; |
2301 | stubs[stubcount].c = c; |
2302 | stubs[stubcount].d = d; |
2303 | stubs[stubcount].e = e; |
57871462 |
2304 | stubcount++; |
2305 | } |
2306 | |
b14b6a8f |
2307 | static void add_stub_r(enum stub_type type, void *addr, void *retaddr, |
81dbbf4c |
2308 | int i, int addr_reg, const struct regstat *i_regs, int ccadj, u_int reglist) |
b14b6a8f |
2309 | { |
2310 | add_stub(type, addr, retaddr, i, addr_reg, (uintptr_t)i_regs, ccadj, reglist); |
2311 | } |
2312 | |
57871462 |
2313 | // Write out a single register |
a22ccd6a |
2314 | static void wb_register(signed char r, const signed char regmap[], u_int dirty) |
57871462 |
2315 | { |
2316 | int hr; |
2317 | for(hr=0;hr<HOST_REGS;hr++) { |
2318 | if(hr!=EXCLUDE_REG) { |
9de8a0c3 |
2319 | if(regmap[hr]==r) { |
57871462 |
2320 | if((dirty>>hr)&1) { |
ad49de89 |
2321 | assert(regmap[hr]<64); |
2322 | emit_storereg(r,hr); |
57871462 |
2323 | } |
a22ccd6a |
2324 | break; |
57871462 |
2325 | } |
2326 | } |
2327 | } |
2328 | } |
2329 | |
8062d65a |
2330 | static void wb_valid(signed char pre[],signed char entry[],u_int dirty_pre,u_int dirty,uint64_t u) |
2331 | { |
2332 | //if(dirty_pre==dirty) return; |
53358c1d |
2333 | int hr, r; |
2334 | for (hr = 0; hr < HOST_REGS; hr++) { |
2335 | r = pre[hr]; |
2336 | if (r < 1 || r > 33 || ((u >> r) & 1)) |
2337 | continue; |
2338 | if (((dirty_pre & ~dirty) >> hr) & 1) |
2339 | emit_storereg(r, hr); |
8062d65a |
2340 | } |
2341 | } |
2342 | |
687b4580 |
2343 | // trashes r2 |
2344 | static void pass_args(int a0, int a1) |
2345 | { |
2346 | if(a0==1&&a1==0) { |
2347 | // must swap |
2348 | emit_mov(a0,2); emit_mov(a1,1); emit_mov(2,0); |
2349 | } |
2350 | else if(a0!=0&&a1==0) { |
2351 | emit_mov(a1,1); |
2352 | if (a0>=0) emit_mov(a0,0); |
2353 | } |
2354 | else { |
2355 | if(a0>=0&&a0!=0) emit_mov(a0,0); |
2356 | if(a1>=0&&a1!=1) emit_mov(a1,1); |
2357 | } |
2358 | } |
2359 | |
a5cd72d0 |
2360 | static void alu_assemble(int i, const struct regstat *i_regs, int ccadj_) |
57871462 |
2361 | { |
cf95b4f0 |
2362 | if(dops[i].opcode2>=0x20&&dops[i].opcode2<=0x23) { // ADD/ADDU/SUB/SUBU |
a5cd72d0 |
2363 | int do_oflow = dops[i].may_except; // ADD/SUB with exceptions enabled |
2364 | if (dops[i].rt1 || do_oflow) { |
2365 | int do_exception_check = 0; |
2366 | signed char s1, s2, t, tmp; |
2367 | t = get_reg_w(i_regs->regmap, dops[i].rt1); |
2368 | tmp = get_reg_temp(i_regs->regmap); |
277718fa |
2369 | if (do_oflow) |
2370 | assert(tmp >= 0); |
90f98e7c |
2371 | if (t < 0 && do_oflow) |
2372 | t = tmp; |
a5cd72d0 |
2373 | if (t >= 0) { |
2374 | s1 = get_reg(i_regs->regmap, dops[i].rs1); |
2375 | s2 = get_reg(i_regs->regmap, dops[i].rs2); |
2376 | if (dops[i].rs1 && dops[i].rs2) { |
57871462 |
2377 | assert(s1>=0); |
2378 | assert(s2>=0); |
a5cd72d0 |
2379 | if (dops[i].opcode2 & 2) { |
2380 | if (do_oflow) { |
2381 | emit_subs(s1, s2, tmp); |
2382 | do_exception_check = 1; |
2383 | } |
2384 | else |
2385 | emit_sub(s1,s2,t); |
2386 | } |
2387 | else { |
2388 | if (do_oflow) { |
2389 | emit_adds(s1, s2, tmp); |
2390 | do_exception_check = 1; |
2391 | } |
2392 | else |
2393 | emit_add(s1,s2,t); |
2394 | } |
57871462 |
2395 | } |
cf95b4f0 |
2396 | else if(dops[i].rs1) { |
57871462 |
2397 | if(s1>=0) emit_mov(s1,t); |
cf95b4f0 |
2398 | else emit_loadreg(dops[i].rs1,t); |
57871462 |
2399 | } |
cf95b4f0 |
2400 | else if(dops[i].rs2) { |
a5cd72d0 |
2401 | if (s2 < 0) { |
2402 | emit_loadreg(dops[i].rs2, t); |
2403 | s2 = t; |
57871462 |
2404 | } |
a5cd72d0 |
2405 | if (dops[i].opcode2 & 2) { |
2406 | if (do_oflow) { |
2407 | emit_negs(s2, tmp); |
2408 | do_exception_check = 1; |
2409 | } |
2410 | else |
2411 | emit_neg(s2, t); |
57871462 |
2412 | } |
a5cd72d0 |
2413 | else if (s2 != t) |
2414 | emit_mov(s2, t); |
57871462 |
2415 | } |
a5cd72d0 |
2416 | else |
2417 | emit_zeroreg(t); |
2418 | } |
2419 | if (do_exception_check) { |
2420 | void *jaddr = out; |
2421 | emit_jo(0); |
2422 | if (t >= 0 && tmp != t) |
2423 | emit_mov(tmp, t); |
2424 | add_stub_r(OVERFLOW_STUB, jaddr, out, i, 0, i_regs, ccadj_, 0); |
57871462 |
2425 | } |
2426 | } |
2427 | } |
a5cd72d0 |
2428 | else if(dops[i].opcode2==0x2a||dops[i].opcode2==0x2b) { // SLT/SLTU |
cf95b4f0 |
2429 | if(dops[i].rt1) { |
ad49de89 |
2430 | signed char s1l,s2l,t; |
57871462 |
2431 | { |
a5cd72d0 |
2432 | t=get_reg_w(i_regs->regmap, dops[i].rt1); |
57871462 |
2433 | //assert(t>=0); |
2434 | if(t>=0) { |
cf95b4f0 |
2435 | s1l=get_reg(i_regs->regmap,dops[i].rs1); |
2436 | s2l=get_reg(i_regs->regmap,dops[i].rs2); |
2437 | if(dops[i].rs2==0) // rx<r0 |
57871462 |
2438 | { |
cf95b4f0 |
2439 | if(dops[i].opcode2==0x2a&&dops[i].rs1!=0) { // SLT |
06e425d7 |
2440 | assert(s1l>=0); |
57871462 |
2441 | emit_shrimm(s1l,31,t); |
06e425d7 |
2442 | } |
2443 | else // SLTU (unsigned can not be less than zero, 0<0) |
57871462 |
2444 | emit_zeroreg(t); |
2445 | } |
cf95b4f0 |
2446 | else if(dops[i].rs1==0) // r0<rx |
57871462 |
2447 | { |
2448 | assert(s2l>=0); |
cf95b4f0 |
2449 | if(dops[i].opcode2==0x2a) // SLT |
57871462 |
2450 | emit_set_gz32(s2l,t); |
2451 | else // SLTU (set if not zero) |
2452 | emit_set_nz32(s2l,t); |
2453 | } |
2454 | else{ |
2455 | assert(s1l>=0);assert(s2l>=0); |
cf95b4f0 |
2456 | if(dops[i].opcode2==0x2a) // SLT |
57871462 |
2457 | emit_set_if_less32(s1l,s2l,t); |
2458 | else // SLTU |
2459 | emit_set_if_carry32(s1l,s2l,t); |
2460 | } |
2461 | } |
2462 | } |
2463 | } |
2464 | } |
a5cd72d0 |
2465 | else if(dops[i].opcode2>=0x24&&dops[i].opcode2<=0x27) { // AND/OR/XOR/NOR |
cf95b4f0 |
2466 | if(dops[i].rt1) { |
ad49de89 |
2467 | signed char s1l,s2l,tl; |
a5cd72d0 |
2468 | tl=get_reg_w(i_regs->regmap, dops[i].rt1); |
57871462 |
2469 | { |
57871462 |
2470 | if(tl>=0) { |
cf95b4f0 |
2471 | s1l=get_reg(i_regs->regmap,dops[i].rs1); |
2472 | s2l=get_reg(i_regs->regmap,dops[i].rs2); |
2473 | if(dops[i].rs1&&dops[i].rs2) { |
57871462 |
2474 | assert(s1l>=0); |
2475 | assert(s2l>=0); |
cf95b4f0 |
2476 | if(dops[i].opcode2==0x24) { // AND |
57871462 |
2477 | emit_and(s1l,s2l,tl); |
2478 | } else |
cf95b4f0 |
2479 | if(dops[i].opcode2==0x25) { // OR |
57871462 |
2480 | emit_or(s1l,s2l,tl); |
2481 | } else |
cf95b4f0 |
2482 | if(dops[i].opcode2==0x26) { // XOR |
57871462 |
2483 | emit_xor(s1l,s2l,tl); |
2484 | } else |
cf95b4f0 |
2485 | if(dops[i].opcode2==0x27) { // NOR |
57871462 |
2486 | emit_or(s1l,s2l,tl); |
2487 | emit_not(tl,tl); |
2488 | } |
2489 | } |
2490 | else |
2491 | { |
cf95b4f0 |
2492 | if(dops[i].opcode2==0x24) { // AND |
57871462 |
2493 | emit_zeroreg(tl); |
2494 | } else |
cf95b4f0 |
2495 | if(dops[i].opcode2==0x25||dops[i].opcode2==0x26) { // OR/XOR |
2496 | if(dops[i].rs1){ |
57871462 |
2497 | if(s1l>=0) emit_mov(s1l,tl); |
cf95b4f0 |
2498 | else emit_loadreg(dops[i].rs1,tl); // CHECK: regmap_entry? |
57871462 |
2499 | } |
2500 | else |
cf95b4f0 |
2501 | if(dops[i].rs2){ |
57871462 |
2502 | if(s2l>=0) emit_mov(s2l,tl); |
cf95b4f0 |
2503 | else emit_loadreg(dops[i].rs2,tl); // CHECK: regmap_entry? |
57871462 |
2504 | } |
2505 | else emit_zeroreg(tl); |
2506 | } else |
cf95b4f0 |
2507 | if(dops[i].opcode2==0x27) { // NOR |
2508 | if(dops[i].rs1){ |
57871462 |
2509 | if(s1l>=0) emit_not(s1l,tl); |
2510 | else { |
cf95b4f0 |
2511 | emit_loadreg(dops[i].rs1,tl); |
57871462 |
2512 | emit_not(tl,tl); |
2513 | } |
2514 | } |
2515 | else |
cf95b4f0 |
2516 | if(dops[i].rs2){ |
57871462 |
2517 | if(s2l>=0) emit_not(s2l,tl); |
2518 | else { |
cf95b4f0 |
2519 | emit_loadreg(dops[i].rs2,tl); |
57871462 |
2520 | emit_not(tl,tl); |
2521 | } |
2522 | } |
2523 | else emit_movimm(-1,tl); |
2524 | } |
2525 | } |
2526 | } |
2527 | } |
2528 | } |
2529 | } |
2530 | } |
2531 | |
a5cd72d0 |
2532 | static void imm16_assemble(int i, const struct regstat *i_regs, int ccadj_) |
57871462 |
2533 | { |
cf95b4f0 |
2534 | if (dops[i].opcode==0x0f) { // LUI |
2535 | if(dops[i].rt1) { |
57871462 |
2536 | signed char t; |
a5cd72d0 |
2537 | t=get_reg_w(i_regs->regmap, dops[i].rt1); |
57871462 |
2538 | //assert(t>=0); |
2539 | if(t>=0) { |
2540 | if(!((i_regs->isconst>>t)&1)) |
277718fa |
2541 | emit_movimm(cinfo[i].imm<<16,t); |
57871462 |
2542 | } |
2543 | } |
2544 | } |
cf95b4f0 |
2545 | if(dops[i].opcode==0x08||dops[i].opcode==0x09) { // ADDI/ADDIU |
277718fa |
2546 | int is_addi = dops[i].may_except; |
a5cd72d0 |
2547 | if (dops[i].rt1 || is_addi) { |
2548 | signed char s, t, tmp; |
2549 | t=get_reg_w(i_regs->regmap, dops[i].rt1); |
cf95b4f0 |
2550 | s=get_reg(i_regs->regmap,dops[i].rs1); |
2551 | if(dops[i].rs1) { |
a5cd72d0 |
2552 | tmp = get_reg_temp(i_regs->regmap); |
2553 | if (is_addi) { |
2554 | assert(tmp >= 0); |
2555 | if (t < 0) t = tmp; |
2556 | } |
57871462 |
2557 | if(t>=0) { |
2558 | if(!((i_regs->isconst>>t)&1)) { |
a5cd72d0 |
2559 | int sum, do_exception_check = 0; |
2560 | if (s < 0) { |
cf95b4f0 |
2561 | if(i_regs->regmap_entry[t]!=dops[i].rs1) emit_loadreg(dops[i].rs1,t); |
a5cd72d0 |
2562 | if (is_addi) { |
277718fa |
2563 | emit_addimm_and_set_flags3(t, cinfo[i].imm, tmp); |
a5cd72d0 |
2564 | do_exception_check = 1; |
2565 | } |
57871462 |
2566 | else |
277718fa |
2567 | emit_addimm(t, cinfo[i].imm, t); |
a5cd72d0 |
2568 | } else { |
2569 | if (!((i_regs->wasconst >> s) & 1)) { |
2570 | if (is_addi) { |
277718fa |
2571 | emit_addimm_and_set_flags3(s, cinfo[i].imm, tmp); |
a5cd72d0 |
2572 | do_exception_check = 1; |
2573 | } |
2574 | else |
277718fa |
2575 | emit_addimm(s, cinfo[i].imm, t); |
a5cd72d0 |
2576 | } |
2577 | else { |
277718fa |
2578 | int oflow = add_overflow(constmap[i][s], cinfo[i].imm, sum); |
a5cd72d0 |
2579 | if (is_addi && oflow) |
2580 | do_exception_check = 2; |
2581 | else |
2582 | emit_movimm(sum, t); |
2583 | } |
2584 | } |
2585 | if (do_exception_check) { |
2586 | void *jaddr = out; |
2587 | if (do_exception_check == 2) |
2588 | emit_jmp(0); |
2589 | else { |
2590 | emit_jo(0); |
2591 | if (tmp != t) |
2592 | emit_mov(tmp, t); |
2593 | } |
2594 | add_stub_r(OVERFLOW_STUB, jaddr, out, i, 0, i_regs, ccadj_, 0); |
57871462 |
2595 | } |
2596 | } |
2597 | } |
2598 | } else { |
2599 | if(t>=0) { |
2600 | if(!((i_regs->isconst>>t)&1)) |
277718fa |
2601 | emit_movimm(cinfo[i].imm,t); |
57871462 |
2602 | } |
2603 | } |
2604 | } |
2605 | } |
cf95b4f0 |
2606 | else if(dops[i].opcode==0x0a||dops[i].opcode==0x0b) { // SLTI/SLTIU |
2607 | if(dops[i].rt1) { |
2608 | //assert(dops[i].rs1!=0); // r0 might be valid, but it's probably a bug |
ad49de89 |
2609 | signed char sl,t; |
a5cd72d0 |
2610 | t=get_reg_w(i_regs->regmap, dops[i].rt1); |
cf95b4f0 |
2611 | sl=get_reg(i_regs->regmap,dops[i].rs1); |
57871462 |
2612 | //assert(t>=0); |
2613 | if(t>=0) { |
cf95b4f0 |
2614 | if(dops[i].rs1>0) { |
2615 | if(dops[i].opcode==0x0a) { // SLTI |
57871462 |
2616 | if(sl<0) { |
cf95b4f0 |
2617 | if(i_regs->regmap_entry[t]!=dops[i].rs1) emit_loadreg(dops[i].rs1,t); |
277718fa |
2618 | emit_slti32(t,cinfo[i].imm,t); |
57871462 |
2619 | }else{ |
277718fa |
2620 | emit_slti32(sl,cinfo[i].imm,t); |
57871462 |
2621 | } |
2622 | } |
2623 | else { // SLTIU |
2624 | if(sl<0) { |
cf95b4f0 |
2625 | if(i_regs->regmap_entry[t]!=dops[i].rs1) emit_loadreg(dops[i].rs1,t); |
277718fa |
2626 | emit_sltiu32(t,cinfo[i].imm,t); |
57871462 |
2627 | }else{ |
277718fa |
2628 | emit_sltiu32(sl,cinfo[i].imm,t); |
57871462 |
2629 | } |
2630 | } |
57871462 |
2631 | }else{ |
2632 | // SLTI(U) with r0 is just stupid, |
2633 | // nonetheless examples can be found |
cf95b4f0 |
2634 | if(dops[i].opcode==0x0a) // SLTI |
277718fa |
2635 | if(0<cinfo[i].imm) emit_movimm(1,t); |
57871462 |
2636 | else emit_zeroreg(t); |
2637 | else // SLTIU |
2638 | { |
277718fa |
2639 | if(cinfo[i].imm) emit_movimm(1,t); |
57871462 |
2640 | else emit_zeroreg(t); |
2641 | } |
2642 | } |
2643 | } |
2644 | } |
2645 | } |
cf95b4f0 |
2646 | else if(dops[i].opcode>=0x0c&&dops[i].opcode<=0x0e) { // ANDI/ORI/XORI |
2647 | if(dops[i].rt1) { |
7c3a5182 |
2648 | signed char sl,tl; |
a5cd72d0 |
2649 | tl=get_reg_w(i_regs->regmap, dops[i].rt1); |
cf95b4f0 |
2650 | sl=get_reg(i_regs->regmap,dops[i].rs1); |
57871462 |
2651 | if(tl>=0 && !((i_regs->isconst>>tl)&1)) { |
cf95b4f0 |
2652 | if(dops[i].opcode==0x0c) //ANDI |
57871462 |
2653 | { |
cf95b4f0 |
2654 | if(dops[i].rs1) { |
57871462 |
2655 | if(sl<0) { |
cf95b4f0 |
2656 | if(i_regs->regmap_entry[tl]!=dops[i].rs1) emit_loadreg(dops[i].rs1,tl); |
277718fa |
2657 | emit_andimm(tl,cinfo[i].imm,tl); |
57871462 |
2658 | }else{ |
2659 | if(!((i_regs->wasconst>>sl)&1)) |
277718fa |
2660 | emit_andimm(sl,cinfo[i].imm,tl); |
57871462 |
2661 | else |
277718fa |
2662 | emit_movimm(constmap[i][sl]&cinfo[i].imm,tl); |
57871462 |
2663 | } |
2664 | } |
2665 | else |
2666 | emit_zeroreg(tl); |
57871462 |
2667 | } |
2668 | else |
2669 | { |
cf95b4f0 |
2670 | if(dops[i].rs1) { |
57871462 |
2671 | if(sl<0) { |
cf95b4f0 |
2672 | if(i_regs->regmap_entry[tl]!=dops[i].rs1) emit_loadreg(dops[i].rs1,tl); |
57871462 |
2673 | } |
cf95b4f0 |
2674 | if(dops[i].opcode==0x0d) { // ORI |
581335b0 |
2675 | if(sl<0) { |
277718fa |
2676 | emit_orimm(tl,cinfo[i].imm,tl); |
581335b0 |
2677 | }else{ |
2678 | if(!((i_regs->wasconst>>sl)&1)) |
277718fa |
2679 | emit_orimm(sl,cinfo[i].imm,tl); |
581335b0 |
2680 | else |
277718fa |
2681 | emit_movimm(constmap[i][sl]|cinfo[i].imm,tl); |
581335b0 |
2682 | } |
57871462 |
2683 | } |
cf95b4f0 |
2684 | if(dops[i].opcode==0x0e) { // XORI |
581335b0 |
2685 | if(sl<0) { |
277718fa |
2686 | emit_xorimm(tl,cinfo[i].imm,tl); |
581335b0 |
2687 | }else{ |
2688 | if(!((i_regs->wasconst>>sl)&1)) |
277718fa |
2689 | emit_xorimm(sl,cinfo[i].imm,tl); |
581335b0 |
2690 | else |
277718fa |
2691 | emit_movimm(constmap[i][sl]^cinfo[i].imm,tl); |
581335b0 |
2692 | } |
57871462 |
2693 | } |
2694 | } |
2695 | else { |
277718fa |
2696 | emit_movimm(cinfo[i].imm,tl); |
57871462 |
2697 | } |
2698 | } |
2699 | } |
2700 | } |
2701 | } |
2702 | } |
2703 | |
2330734f |
2704 | static void shiftimm_assemble(int i, const struct regstat *i_regs) |
57871462 |
2705 | { |
cf95b4f0 |
2706 | if(dops[i].opcode2<=0x3) // SLL/SRL/SRA |
57871462 |
2707 | { |
cf95b4f0 |
2708 | if(dops[i].rt1) { |
57871462 |
2709 | signed char s,t; |
a5cd72d0 |
2710 | t=get_reg_w(i_regs->regmap, dops[i].rt1); |
cf95b4f0 |
2711 | s=get_reg(i_regs->regmap,dops[i].rs1); |
57871462 |
2712 | //assert(t>=0); |
dc49e339 |
2713 | if(t>=0&&!((i_regs->isconst>>t)&1)){ |
cf95b4f0 |
2714 | if(dops[i].rs1==0) |
57871462 |
2715 | { |
2716 | emit_zeroreg(t); |
2717 | } |
2718 | else |
2719 | { |
cf95b4f0 |
2720 | if(s<0&&i_regs->regmap_entry[t]!=dops[i].rs1) emit_loadreg(dops[i].rs1,t); |
277718fa |
2721 | if(cinfo[i].imm) { |
cf95b4f0 |
2722 | if(dops[i].opcode2==0) // SLL |
57871462 |
2723 | { |
277718fa |
2724 | emit_shlimm(s<0?t:s,cinfo[i].imm,t); |
57871462 |
2725 | } |
cf95b4f0 |
2726 | if(dops[i].opcode2==2) // SRL |
57871462 |
2727 | { |
277718fa |
2728 | emit_shrimm(s<0?t:s,cinfo[i].imm,t); |
57871462 |
2729 | } |
cf95b4f0 |
2730 | if(dops[i].opcode2==3) // SRA |
57871462 |
2731 | { |
277718fa |
2732 | emit_sarimm(s<0?t:s,cinfo[i].imm,t); |
57871462 |
2733 | } |
2734 | }else{ |
2735 | // Shift by zero |
2736 | if(s>=0 && s!=t) emit_mov(s,t); |
2737 | } |
2738 | } |
2739 | } |
cf95b4f0 |
2740 | //emit_storereg(dops[i].rt1,t); //DEBUG |
57871462 |
2741 | } |
2742 | } |
cf95b4f0 |
2743 | if(dops[i].opcode2>=0x38&&dops[i].opcode2<=0x3b) // DSLL/DSRL/DSRA |
57871462 |
2744 | { |
9c45ca93 |
2745 | assert(0); |
57871462 |
2746 | } |
cf95b4f0 |
2747 | if(dops[i].opcode2==0x3c) // DSLL32 |
57871462 |
2748 | { |
9c45ca93 |
2749 | assert(0); |
57871462 |
2750 | } |
cf95b4f0 |
2751 | if(dops[i].opcode2==0x3e) // DSRL32 |
57871462 |
2752 | { |
9c45ca93 |
2753 | assert(0); |
57871462 |
2754 | } |
cf95b4f0 |
2755 | if(dops[i].opcode2==0x3f) // DSRA32 |
57871462 |
2756 | { |
9c45ca93 |
2757 | assert(0); |
57871462 |
2758 | } |
2759 | } |
2760 | |
2761 | #ifndef shift_assemble |
2330734f |
2762 | static void shift_assemble(int i, const struct regstat *i_regs) |
57871462 |
2763 | { |
3968e69e |
2764 | signed char s,t,shift; |
cf95b4f0 |
2765 | if (dops[i].rt1 == 0) |
3968e69e |
2766 | return; |
cf95b4f0 |
2767 | assert(dops[i].opcode2<=0x07); // SLLV/SRLV/SRAV |
2768 | t = get_reg(i_regs->regmap, dops[i].rt1); |
2769 | s = get_reg(i_regs->regmap, dops[i].rs1); |
2770 | shift = get_reg(i_regs->regmap, dops[i].rs2); |
3968e69e |
2771 | if (t < 0) |
2772 | return; |
2773 | |
cf95b4f0 |
2774 | if(dops[i].rs1==0) |
3968e69e |
2775 | emit_zeroreg(t); |
cf95b4f0 |
2776 | else if(dops[i].rs2==0) { |
3968e69e |
2777 | assert(s>=0); |
2778 | if(s!=t) emit_mov(s,t); |
2779 | } |
2780 | else { |
2781 | host_tempreg_acquire(); |
2782 | emit_andimm(shift,31,HOST_TEMPREG); |
cf95b4f0 |
2783 | switch(dops[i].opcode2) { |
3968e69e |
2784 | case 4: // SLLV |
2785 | emit_shl(s,HOST_TEMPREG,t); |
2786 | break; |
2787 | case 6: // SRLV |
2788 | emit_shr(s,HOST_TEMPREG,t); |
2789 | break; |
2790 | case 7: // SRAV |
2791 | emit_sar(s,HOST_TEMPREG,t); |
2792 | break; |
2793 | default: |
2794 | assert(0); |
2795 | } |
2796 | host_tempreg_release(); |
2797 | } |
57871462 |
2798 | } |
3968e69e |
2799 | |
57871462 |
2800 | #endif |
2801 | |
8062d65a |
2802 | enum { |
2803 | MTYPE_8000 = 0, |
2804 | MTYPE_8020, |
2805 | MTYPE_0000, |
2806 | MTYPE_A000, |
2807 | MTYPE_1F80, |
2808 | }; |
2809 | |
2810 | static int get_ptr_mem_type(u_int a) |
2811 | { |
2812 | if(a < 0x00200000) { |
2813 | if(a<0x1000&&((start>>20)==0xbfc||(start>>24)==0xa0)) |
2814 | // return wrong, must use memhandler for BIOS self-test to pass |
2815 | // 007 does similar stuff from a00 mirror, weird stuff |
2816 | return MTYPE_8000; |
2817 | return MTYPE_0000; |
2818 | } |
2819 | if(0x1f800000 <= a && a < 0x1f801000) |
2820 | return MTYPE_1F80; |
2821 | if(0x80200000 <= a && a < 0x80800000) |
2822 | return MTYPE_8020; |
2823 | if(0xa0000000 <= a && a < 0xa0200000) |
2824 | return MTYPE_A000; |
2825 | return MTYPE_8000; |
2826 | } |
2827 | |
37387d8b |
2828 | static int get_ro_reg(const struct regstat *i_regs, int host_tempreg_free) |
2829 | { |
2830 | int r = get_reg(i_regs->regmap, ROREG); |
2831 | if (r < 0 && host_tempreg_free) { |
2832 | host_tempreg_acquire(); |
2833 | emit_loadreg(ROREG, r = HOST_TEMPREG); |
2834 | } |
2835 | if (r < 0) |
2836 | abort(); |
2837 | return r; |
2838 | } |
2839 | |
2840 | static void *emit_fastpath_cmp_jump(int i, const struct regstat *i_regs, |
277718fa |
2841 | int addr, int *offset_reg, int *addr_reg_override, int ccadj_) |
8062d65a |
2842 | { |
2843 | void *jaddr = NULL; |
37387d8b |
2844 | int type = 0; |
2845 | int mr = dops[i].rs1; |
277718fa |
2846 | assert(addr >= 0); |
37387d8b |
2847 | *offset_reg = -1; |
8062d65a |
2848 | if(((smrv_strong|smrv_weak)>>mr)&1) { |
2849 | type=get_ptr_mem_type(smrv[mr]); |
2850 | //printf("set %08x @%08x r%d %d\n", smrv[mr], start+i*4, mr, type); |
2851 | } |
2852 | else { |
2853 | // use the mirror we are running on |
2854 | type=get_ptr_mem_type(start); |
2855 | //printf("set nospec @%08x r%d %d\n", start+i*4, mr, type); |
2856 | } |
2857 | |
277718fa |
2858 | if (dops[i].may_except) { |
2859 | // alignment check |
2860 | u_int op = dops[i].opcode; |
2861 | int mask = ((op & 0x37) == 0x21 || op == 0x25) ? 1 : 3; // LH/SH/LHU |
33a1eda1 |
2862 | void *jaddr2; |
277718fa |
2863 | emit_testimm(addr, mask); |
33a1eda1 |
2864 | jaddr2 = out; |
277718fa |
2865 | emit_jne(0); |
33a1eda1 |
2866 | add_stub_r(ALIGNMENT_STUB, jaddr2, out, i, addr, i_regs, ccadj_, 0); |
277718fa |
2867 | } |
2868 | |
8062d65a |
2869 | if(type==MTYPE_8020) { // RAM 80200000+ mirror |
d1e4ebd9 |
2870 | host_tempreg_acquire(); |
8062d65a |
2871 | emit_andimm(addr,~0x00e00000,HOST_TEMPREG); |
2872 | addr=*addr_reg_override=HOST_TEMPREG; |
2873 | type=0; |
2874 | } |
2875 | else if(type==MTYPE_0000) { // RAM 0 mirror |
d1e4ebd9 |
2876 | host_tempreg_acquire(); |
8062d65a |
2877 | emit_orimm(addr,0x80000000,HOST_TEMPREG); |
2878 | addr=*addr_reg_override=HOST_TEMPREG; |
2879 | type=0; |
2880 | } |
2881 | else if(type==MTYPE_A000) { // RAM A mirror |
d1e4ebd9 |
2882 | host_tempreg_acquire(); |
8062d65a |
2883 | emit_andimm(addr,~0x20000000,HOST_TEMPREG); |
2884 | addr=*addr_reg_override=HOST_TEMPREG; |
2885 | type=0; |
2886 | } |
2887 | else if(type==MTYPE_1F80) { // scratchpad |
2888 | if (psxH == (void *)0x1f800000) { |
d1e4ebd9 |
2889 | host_tempreg_acquire(); |
3968e69e |
2890 | emit_xorimm(addr,0x1f800000,HOST_TEMPREG); |
8062d65a |
2891 | emit_cmpimm(HOST_TEMPREG,0x1000); |
d1e4ebd9 |
2892 | host_tempreg_release(); |
8062d65a |
2893 | jaddr=out; |
2894 | emit_jc(0); |
2895 | } |
2896 | else { |
2897 | // do the usual RAM check, jump will go to the right handler |
2898 | type=0; |
2899 | } |
2900 | } |
2901 | |
37387d8b |
2902 | if (type == 0) // need ram check |
8062d65a |
2903 | { |
2904 | emit_cmpimm(addr,RAM_SIZE); |
37387d8b |
2905 | jaddr = out; |
8062d65a |
2906 | #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
2907 | // Hint to branch predictor that the branch is unlikely to be taken |
37387d8b |
2908 | if (dops[i].rs1 >= 28) |
8062d65a |
2909 | emit_jno_unlikely(0); |
2910 | else |
2911 | #endif |
2912 | emit_jno(0); |
37387d8b |
2913 | if (ram_offset != 0) |
2914 | *offset_reg = get_ro_reg(i_regs, 0); |
8062d65a |
2915 | } |
2916 | |
2917 | return jaddr; |
2918 | } |
2919 | |
687b4580 |
2920 | // return memhandler, or get directly accessable address and return 0 |
2921 | static void *get_direct_memhandler(void *table, u_int addr, |
2922 | enum stub_type type, uintptr_t *addr_host) |
2923 | { |
c979e8c2 |
2924 | uintptr_t msb = 1ull << (sizeof(uintptr_t)*8 - 1); |
687b4580 |
2925 | uintptr_t l1, l2 = 0; |
2926 | l1 = ((uintptr_t *)table)[addr>>12]; |
c979e8c2 |
2927 | if (!(l1 & msb)) { |
687b4580 |
2928 | uintptr_t v = l1 << 1; |
2929 | *addr_host = v + addr; |
2930 | return NULL; |
2931 | } |
2932 | else { |
2933 | l1 <<= 1; |
2934 | if (type == LOADB_STUB || type == LOADBU_STUB || type == STOREB_STUB) |
2935 | l2 = ((uintptr_t *)l1)[0x1000/4 + 0x1000/2 + (addr&0xfff)]; |
2936 | else if (type == LOADH_STUB || type == LOADHU_STUB || type == STOREH_STUB) |
c979e8c2 |
2937 | l2 = ((uintptr_t *)l1)[0x1000/4 + (addr&0xfff)/2]; |
687b4580 |
2938 | else |
c979e8c2 |
2939 | l2 = ((uintptr_t *)l1)[(addr&0xfff)/4]; |
2940 | if (!(l2 & msb)) { |
687b4580 |
2941 | uintptr_t v = l2 << 1; |
2942 | *addr_host = v + (addr&0xfff); |
2943 | return NULL; |
2944 | } |
2945 | return (void *)(l2 << 1); |
2946 | } |
2947 | } |
2948 | |
81dbbf4c |
2949 | static u_int get_host_reglist(const signed char *regmap) |
2950 | { |
2951 | u_int reglist = 0, hr; |
2952 | for (hr = 0; hr < HOST_REGS; hr++) { |
2953 | if (hr != EXCLUDE_REG && regmap[hr] >= 0) |
2954 | reglist |= 1 << hr; |
2955 | } |
2956 | return reglist; |
2957 | } |
2958 | |
2959 | static u_int reglist_exclude(u_int reglist, int r1, int r2) |
2960 | { |
2961 | if (r1 >= 0) |
2962 | reglist &= ~(1u << r1); |
2963 | if (r2 >= 0) |
2964 | reglist &= ~(1u << r2); |
2965 | return reglist; |
2966 | } |
2967 | |
e3c6bdb5 |
2968 | // find a temp caller-saved register not in reglist (so assumed to be free) |
2969 | static int reglist_find_free(u_int reglist) |
2970 | { |
2971 | u_int free_regs = ~reglist & CALLER_SAVE_REGS; |
2972 | if (free_regs == 0) |
2973 | return -1; |
2974 | return __builtin_ctz(free_regs); |
2975 | } |
2976 | |
37387d8b |
2977 | static void do_load_word(int a, int rt, int offset_reg) |
2978 | { |
2979 | if (offset_reg >= 0) |
2980 | emit_ldr_dualindexed(offset_reg, a, rt); |
2981 | else |
2982 | emit_readword_indexed(0, a, rt); |
2983 | } |
2984 | |
2985 | static void do_store_word(int a, int ofs, int rt, int offset_reg, int preseve_a) |
2986 | { |
2987 | if (offset_reg < 0) { |
2988 | emit_writeword_indexed(rt, ofs, a); |
2989 | return; |
2990 | } |
2991 | if (ofs != 0) |
2992 | emit_addimm(a, ofs, a); |
2993 | emit_str_dualindexed(offset_reg, a, rt); |
2994 | if (ofs != 0 && preseve_a) |
2995 | emit_addimm(a, -ofs, a); |
2996 | } |
2997 | |
2998 | static void do_store_hword(int a, int ofs, int rt, int offset_reg, int preseve_a) |
2999 | { |
3000 | if (offset_reg < 0) { |
3001 | emit_writehword_indexed(rt, ofs, a); |
3002 | return; |
3003 | } |
3004 | if (ofs != 0) |
3005 | emit_addimm(a, ofs, a); |
3006 | emit_strh_dualindexed(offset_reg, a, rt); |
3007 | if (ofs != 0 && preseve_a) |
3008 | emit_addimm(a, -ofs, a); |
3009 | } |
3010 | |
3011 | static void do_store_byte(int a, int rt, int offset_reg) |
3012 | { |
3013 | if (offset_reg >= 0) |
3014 | emit_strb_dualindexed(offset_reg, a, rt); |
3015 | else |
3016 | emit_writebyte_indexed(rt, 0, a); |
3017 | } |
3018 | |
2330734f |
3019 | static void load_assemble(int i, const struct regstat *i_regs, int ccadj_) |
57871462 |
3020 | { |
277718fa |
3021 | int addr = cinfo[i].addr; |
3022 | int s,tl; |
57871462 |
3023 | int offset; |
b14b6a8f |
3024 | void *jaddr=0; |
5bf843dc |
3025 | int memtarget=0,c=0; |
37387d8b |
3026 | int offset_reg = -1; |
3027 | int fastio_reg_override = -1; |
81dbbf4c |
3028 | u_int reglist=get_host_reglist(i_regs->regmap); |
a5cd72d0 |
3029 | tl=get_reg_w(i_regs->regmap, dops[i].rt1); |
cf95b4f0 |
3030 | s=get_reg(i_regs->regmap,dops[i].rs1); |
277718fa |
3031 | offset=cinfo[i].imm; |
57871462 |
3032 | if(i_regs->regmap[HOST_CCREG]==CCREG) reglist&=~(1<<HOST_CCREG); |
3033 | if(s>=0) { |
3034 | c=(i_regs->wasconst>>s)&1; |
af4ee1fe |
3035 | if (c) { |
3036 | memtarget=((signed int)(constmap[i][s]+offset))<(signed int)0x80000000+RAM_SIZE; |
af4ee1fe |
3037 | } |
57871462 |
3038 | } |
57871462 |
3039 | //printf("load_assemble: c=%d\n",c); |
643aeae3 |
3040 | //if(c) printf("load_assemble: const=%lx\n",(long)constmap[i][s]+offset); |
a5cd72d0 |
3041 | if(tl<0 && ((!c||(((u_int)constmap[i][s]+offset)>>16)==0x1f80) || dops[i].rt1==0)) { |
5bf843dc |
3042 | // could be FIFO, must perform the read |
f18c0f46 |
3043 | // ||dummy read |
5bf843dc |
3044 | assem_debug("(forced read)\n"); |
277718fa |
3045 | tl = get_reg_temp(i_regs->regmap); // may be == addr |
5bf843dc |
3046 | assert(tl>=0); |
5bf843dc |
3047 | } |
277718fa |
3048 | assert(addr >= 0); |
535d208a |
3049 | if(tl>=0) { |
3050 | //printf("load_assemble: c=%d\n",c); |
643aeae3 |
3051 | //if(c) printf("load_assemble: const=%lx\n",(long)constmap[i][s]+offset); |
535d208a |
3052 | reglist&=~(1<<tl); |
1edfcc68 |
3053 | if(!c) { |
1edfcc68 |
3054 | #ifdef R29_HACK |
3055 | // Strmnnrmn's speed hack |
cf95b4f0 |
3056 | if(dops[i].rs1!=29||start<0x80001000||start>=0x80000000+RAM_SIZE) |
1edfcc68 |
3057 | #endif |
3058 | { |
37387d8b |
3059 | jaddr = emit_fastpath_cmp_jump(i, i_regs, addr, |
277718fa |
3060 | &offset_reg, &fastio_reg_override, ccadj_); |
535d208a |
3061 | } |
1edfcc68 |
3062 | } |
37387d8b |
3063 | else if (ram_offset && memtarget) { |
3064 | offset_reg = get_ro_reg(i_regs, 0); |
535d208a |
3065 | } |
a5cd72d0 |
3066 | int dummy=(dops[i].rt1==0)||(tl!=get_reg_w(i_regs->regmap, dops[i].rt1)); // ignore loads to r0 and unneeded reg |
37387d8b |
3067 | switch (dops[i].opcode) { |
3068 | case 0x20: // LB |
535d208a |
3069 | if(!c||memtarget) { |
3070 | if(!dummy) { |
277718fa |
3071 | int a = addr; |
37387d8b |
3072 | if (fastio_reg_override >= 0) |
3073 | a = fastio_reg_override; |
b1570849 |
3074 | |
37387d8b |
3075 | if (offset_reg >= 0) |
3076 | emit_ldrsb_dualindexed(offset_reg, a, tl); |
3077 | else |
3078 | emit_movsbl_indexed(0, a, tl); |
57871462 |
3079 | } |
535d208a |
3080 | if(jaddr) |
2330734f |
3081 | add_stub_r(LOADB_STUB,jaddr,out,i,addr,i_regs,ccadj_,reglist); |
57871462 |
3082 | } |
535d208a |
3083 | else |
2330734f |
3084 | inline_readstub(LOADB_STUB,i,constmap[i][s]+offset,i_regs->regmap,dops[i].rt1,ccadj_,reglist); |
37387d8b |
3085 | break; |
3086 | case 0x21: // LH |
535d208a |
3087 | if(!c||memtarget) { |
3088 | if(!dummy) { |
277718fa |
3089 | int a = addr; |
37387d8b |
3090 | if (fastio_reg_override >= 0) |
3091 | a = fastio_reg_override; |
3092 | if (offset_reg >= 0) |
3093 | emit_ldrsh_dualindexed(offset_reg, a, tl); |
3094 | else |
3095 | emit_movswl_indexed(0, a, tl); |
57871462 |
3096 | } |
535d208a |
3097 | if(jaddr) |
2330734f |
3098 | add_stub_r(LOADH_STUB,jaddr,out,i,addr,i_regs,ccadj_,reglist); |
57871462 |
3099 | } |
535d208a |
3100 | else |
2330734f |
3101 | inline_readstub(LOADH_STUB,i,constmap[i][s]+offset,i_regs->regmap,dops[i].rt1,ccadj_,reglist); |
37387d8b |
3102 | break; |
3103 | case 0x23: // LW |
535d208a |
3104 | if(!c||memtarget) { |
3105 | if(!dummy) { |
37387d8b |
3106 | int a = addr; |
3107 | if (fastio_reg_override >= 0) |
3108 | a = fastio_reg_override; |
3109 | do_load_word(a, tl, offset_reg); |
57871462 |
3110 | } |
535d208a |
3111 | if(jaddr) |
2330734f |
3112 | add_stub_r(LOADW_STUB,jaddr,out,i,addr,i_regs,ccadj_,reglist); |
57871462 |
3113 | } |
535d208a |
3114 | else |
2330734f |
3115 | inline_readstub(LOADW_STUB,i,constmap[i][s]+offset,i_regs->regmap,dops[i].rt1,ccadj_,reglist); |
37387d8b |
3116 | break; |
3117 | case 0x24: // LBU |
535d208a |
3118 | if(!c||memtarget) { |
3119 | if(!dummy) { |
277718fa |
3120 | int a = addr; |
37387d8b |
3121 | if (fastio_reg_override >= 0) |
3122 | a = fastio_reg_override; |
b1570849 |
3123 | |
37387d8b |
3124 | if (offset_reg >= 0) |
3125 | emit_ldrb_dualindexed(offset_reg, a, tl); |
3126 | else |
3127 | emit_movzbl_indexed(0, a, tl); |
57871462 |
3128 | } |
535d208a |
3129 | if(jaddr) |
2330734f |
3130 | add_stub_r(LOADBU_STUB,jaddr,out,i,addr,i_regs,ccadj_,reglist); |
57871462 |
3131 | } |
535d208a |
3132 | else |
2330734f |
3133 | inline_readstub(LOADBU_STUB,i,constmap[i][s]+offset,i_regs->regmap,dops[i].rt1,ccadj_,reglist); |
37387d8b |
3134 | break; |
3135 | case 0x25: // LHU |
535d208a |
3136 | if(!c||memtarget) { |
3137 | if(!dummy) { |
277718fa |
3138 | int a = addr; |
37387d8b |
3139 | if (fastio_reg_override >= 0) |
3140 | a = fastio_reg_override; |
3141 | if (offset_reg >= 0) |
3142 | emit_ldrh_dualindexed(offset_reg, a, tl); |
3143 | else |
3144 | emit_movzwl_indexed(0, a, tl); |
57871462 |
3145 | } |
535d208a |
3146 | if(jaddr) |
2330734f |
3147 | add_stub_r(LOADHU_STUB,jaddr,out,i,addr,i_regs,ccadj_,reglist); |
57871462 |
3148 | } |
535d208a |
3149 | else |
2330734f |
3150 | inline_readstub(LOADHU_STUB,i,constmap[i][s]+offset,i_regs->regmap,dops[i].rt1,ccadj_,reglist); |
37387d8b |
3151 | break; |
37387d8b |
3152 | default: |
9c45ca93 |
3153 | assert(0); |
57871462 |
3154 | } |
a5cd72d0 |
3155 | } // tl >= 0 |
37387d8b |
3156 | if (fastio_reg_override == HOST_TEMPREG || offset_reg == HOST_TEMPREG) |
d1e4ebd9 |
3157 | host_tempreg_release(); |
57871462 |
3158 | } |
3159 | |
3160 | #ifndef loadlr_assemble |
2330734f |
3161 | static void loadlr_assemble(int i, const struct regstat *i_regs, int ccadj_) |
57871462 |
3162 | { |
277718fa |
3163 | int addr = cinfo[i].addr; |
3164 | int s,tl,temp,temp2; |
3968e69e |
3165 | int offset; |
3166 | void *jaddr=0; |
3167 | int memtarget=0,c=0; |
37387d8b |
3168 | int offset_reg = -1; |
3169 | int fastio_reg_override = -1; |
81dbbf4c |
3170 | u_int reglist=get_host_reglist(i_regs->regmap); |
a5cd72d0 |
3171 | tl=get_reg_w(i_regs->regmap, dops[i].rt1); |
cf95b4f0 |
3172 | s=get_reg(i_regs->regmap,dops[i].rs1); |
9de8a0c3 |
3173 | temp=get_reg_temp(i_regs->regmap); |
3968e69e |
3174 | temp2=get_reg(i_regs->regmap,FTEMP); |
277718fa |
3175 | offset=cinfo[i].imm; |
3968e69e |
3176 | reglist|=1<<temp; |
277718fa |
3177 | assert(addr >= 0); |
3968e69e |
3178 | if(s>=0) { |
3179 | c=(i_regs->wasconst>>s)&1; |
3180 | if(c) { |
3181 | memtarget=((signed int)(constmap[i][s]+offset))<(signed int)0x80000000+RAM_SIZE; |
3182 | } |
3183 | } |
3184 | if(!c) { |
3185 | emit_shlimm(addr,3,temp); |
cf95b4f0 |
3186 | if (dops[i].opcode==0x22||dops[i].opcode==0x26) { |
3968e69e |
3187 | emit_andimm(addr,0xFFFFFFFC,temp2); // LWL/LWR |
3188 | }else{ |
3189 | emit_andimm(addr,0xFFFFFFF8,temp2); // LDL/LDR |
3190 | } |
37387d8b |
3191 | jaddr = emit_fastpath_cmp_jump(i, i_regs, temp2, |
277718fa |
3192 | &offset_reg, &fastio_reg_override, ccadj_); |
3968e69e |
3193 | } |
3194 | else { |
37387d8b |
3195 | if (ram_offset && memtarget) { |
3196 | offset_reg = get_ro_reg(i_regs, 0); |
3968e69e |
3197 | } |
cf95b4f0 |
3198 | if (dops[i].opcode==0x22||dops[i].opcode==0x26) { |
3968e69e |
3199 | emit_movimm(((constmap[i][s]+offset)<<3)&24,temp); // LWL/LWR |
3200 | }else{ |
3201 | emit_movimm(((constmap[i][s]+offset)<<3)&56,temp); // LDL/LDR |
3202 | } |
3203 | } |
cf95b4f0 |
3204 | if (dops[i].opcode==0x22||dops[i].opcode==0x26) { // LWL/LWR |
3968e69e |
3205 | if(!c||memtarget) { |
37387d8b |
3206 | int a = temp2; |
3207 | if (fastio_reg_override >= 0) |
3208 | a = fastio_reg_override; |
3209 | do_load_word(a, temp2, offset_reg); |
3210 | if (fastio_reg_override == HOST_TEMPREG || offset_reg == HOST_TEMPREG) |
3211 | host_tempreg_release(); |
2330734f |
3212 | if(jaddr) add_stub_r(LOADW_STUB,jaddr,out,i,temp2,i_regs,ccadj_,reglist); |
3968e69e |
3213 | } |
3214 | else |
2330734f |
3215 | inline_readstub(LOADW_STUB,i,(constmap[i][s]+offset)&0xFFFFFFFC,i_regs->regmap,FTEMP,ccadj_,reglist); |
cf95b4f0 |
3216 | if(dops[i].rt1) { |
3968e69e |
3217 | assert(tl>=0); |
3218 | emit_andimm(temp,24,temp); |
cf95b4f0 |
3219 | if (dops[i].opcode==0x22) // LWL |
3968e69e |
3220 | emit_xorimm(temp,24,temp); |
3221 | host_tempreg_acquire(); |
3222 | emit_movimm(-1,HOST_TEMPREG); |
cf95b4f0 |
3223 | if (dops[i].opcode==0x26) { |
3968e69e |
3224 | emit_shr(temp2,temp,temp2); |
3225 | emit_bic_lsr(tl,HOST_TEMPREG,temp,tl); |
3226 | }else{ |
3227 | emit_shl(temp2,temp,temp2); |
3228 | emit_bic_lsl(tl,HOST_TEMPREG,temp,tl); |
3229 | } |
3230 | host_tempreg_release(); |
3231 | emit_or(temp2,tl,tl); |
3232 | } |
cf95b4f0 |
3233 | //emit_storereg(dops[i].rt1,tl); // DEBUG |
3968e69e |
3234 | } |
cf95b4f0 |
3235 | if (dops[i].opcode==0x1A||dops[i].opcode==0x1B) { // LDL/LDR |
3968e69e |
3236 | assert(0); |
3237 | } |
57871462 |
3238 | } |
3239 | #endif |
3240 | |
9b495f6e |
3241 | static void do_invstub(int n) |
3242 | { |
3243 | literal_pool(20); |
684b6816 |
3244 | assem_debug("do_invstub %x\n", start + stubs[n].e*4); |
9b495f6e |
3245 | u_int reglist = stubs[n].a; |
3246 | u_int addrr = stubs[n].b; |
3247 | int ofs_start = stubs[n].c; |
3248 | int ofs_end = stubs[n].d; |
3249 | int len = ofs_end - ofs_start; |
3250 | u_int rightr = 0; |
3251 | |
3252 | set_jump_target(stubs[n].addr, out); |
3253 | save_regs(reglist); |
9b495f6e |
3254 | if (addrr != 0 || ofs_start != 0) |
3255 | emit_addimm(addrr, ofs_start, 0); |
3033d898 |
3256 | emit_readword(&inv_code_start, 2); |
3257 | emit_readword(&inv_code_end, 3); |
9b495f6e |
3258 | if (len != 0) |
3259 | emit_addimm(0, len + 4, (rightr = 1)); |
3260 | emit_cmp(0, 2); |
3261 | emit_cmpcs(3, rightr); |
3262 | void *jaddr = out; |
3263 | emit_jc(0); |
3264 | void *func = (len != 0) |
3265 | ? (void *)ndrc_write_invalidate_many |
3266 | : (void *)ndrc_write_invalidate_one; |
3267 | emit_far_call(func); |
3268 | set_jump_target(jaddr, out); |
3269 | restore_regs(reglist); |
3270 | emit_jmp(stubs[n].retaddr); |
3271 | } |
3272 | |
3273 | static void do_store_smc_check(int i, const struct regstat *i_regs, u_int reglist, int addr) |
3274 | { |
3275 | if (HACK_ENABLED(NDHACK_NO_SMC_CHECK)) |
3276 | return; |
3277 | // this can't be used any more since we started to check exact |
3278 | // block boundaries in invalidate_range() |
3279 | //if (i_regs->waswritten & (1<<dops[i].rs1)) |
3280 | // return; |
3281 | // (naively) assume nobody will run code from stack |
3282 | if (dops[i].rs1 == 29) |
3283 | return; |
3284 | |
277718fa |
3285 | int j, imm_maxdiff = 32, imm_min = cinfo[i].imm, imm_max = cinfo[i].imm, count = 1; |
9b495f6e |
3286 | if (i < slen - 1 && dops[i+1].is_store && dops[i+1].rs1 == dops[i].rs1 |
277718fa |
3287 | && abs(cinfo[i+1].imm - cinfo[i].imm) <= imm_maxdiff) |
9b495f6e |
3288 | return; |
3289 | for (j = i - 1; j >= 0; j--) { |
3290 | if (!dops[j].is_store || dops[j].rs1 != dops[i].rs1 |
277718fa |
3291 | || abs(cinfo[j].imm - cinfo[j+1].imm) > imm_maxdiff) |
9b495f6e |
3292 | break; |
3293 | count++; |
277718fa |
3294 | if (imm_min > cinfo[j].imm) |
3295 | imm_min = cinfo[j].imm; |
3296 | if (imm_max < cinfo[j].imm) |
3297 | imm_max = cinfo[j].imm; |
9b495f6e |
3298 | } |
3299 | #if defined(HOST_IMM8) |
3300 | int ir = get_reg(i_regs->regmap, INVCP); |
3301 | assert(ir >= 0); |
3302 | host_tempreg_acquire(); |
3303 | emit_ldrb_indexedsr12_reg(ir, addr, HOST_TEMPREG); |
3304 | #else |
3305 | emit_cmpmem_indexedsr12_imm(invalid_code, addr, 1); |
3306 | #error not handled |
3307 | #endif |
3308 | #ifdef INVALIDATE_USE_COND_CALL |
3309 | if (count == 1) { |
3310 | emit_cmpimm(HOST_TEMPREG, 1); |
3311 | emit_callne(invalidate_addr_reg[addr]); |
3312 | host_tempreg_release(); |
3313 | return; |
3314 | } |
3315 | #endif |
3316 | void *jaddr = emit_cbz(HOST_TEMPREG, 0); |
3317 | host_tempreg_release(); |
277718fa |
3318 | imm_min -= cinfo[i].imm; |
3319 | imm_max -= cinfo[i].imm; |
9b495f6e |
3320 | add_stub(INVCODE_STUB, jaddr, out, reglist|(1<<HOST_CCREG), |
684b6816 |
3321 | addr, imm_min, imm_max, i); |
9b495f6e |
3322 | } |
3323 | |
684b6816 |
3324 | // determines if code overwrite checking is needed only |
3325 | // (also true non-existent 0x20000000 mirror that shouldn't matter) |
3326 | #define is_ram_addr(a) !((a) & 0x5f800000) |
3327 | |
2330734f |
3328 | static void store_assemble(int i, const struct regstat *i_regs, int ccadj_) |
57871462 |
3329 | { |
9c45ca93 |
3330 | int s,tl; |
277718fa |
3331 | int addr = cinfo[i].addr; |
57871462 |
3332 | int offset; |
b14b6a8f |
3333 | void *jaddr=0; |
37387d8b |
3334 | enum stub_type type=0; |
666a299d |
3335 | int memtarget=0,c=0; |
37387d8b |
3336 | int offset_reg = -1; |
3337 | int fastio_reg_override = -1; |
684b6816 |
3338 | u_int addr_const = ~0; |
81dbbf4c |
3339 | u_int reglist=get_host_reglist(i_regs->regmap); |
cf95b4f0 |
3340 | tl=get_reg(i_regs->regmap,dops[i].rs2); |
3341 | s=get_reg(i_regs->regmap,dops[i].rs1); |
277718fa |
3342 | offset=cinfo[i].imm; |
57871462 |
3343 | if(s>=0) { |
3344 | c=(i_regs->wasconst>>s)&1; |
684b6816 |
3345 | if (c) { |
3346 | addr_const = constmap[i][s] + offset; |
3347 | memtarget = ((signed int)addr_const) < (signed int)(0x80000000 + RAM_SIZE); |
af4ee1fe |
3348 | } |
57871462 |
3349 | } |
3350 | assert(tl>=0); |
277718fa |
3351 | assert(addr >= 0); |
57871462 |
3352 | if(i_regs->regmap[HOST_CCREG]==CCREG) reglist&=~(1<<HOST_CCREG); |
684b6816 |
3353 | reglist |= 1u << addr; |
37387d8b |
3354 | if (!c) { |
3355 | jaddr = emit_fastpath_cmp_jump(i, i_regs, addr, |
277718fa |
3356 | &offset_reg, &fastio_reg_override, ccadj_); |
1edfcc68 |
3357 | } |
37387d8b |
3358 | else if (ram_offset && memtarget) { |
3359 | offset_reg = get_ro_reg(i_regs, 0); |
57871462 |
3360 | } |
3361 | |
37387d8b |
3362 | switch (dops[i].opcode) { |
3363 | case 0x28: // SB |
57871462 |
3364 | if(!c||memtarget) { |
277718fa |
3365 | int a = addr; |
37387d8b |
3366 | if (fastio_reg_override >= 0) |
3367 | a = fastio_reg_override; |
3368 | do_store_byte(a, tl, offset_reg); |
3369 | } |
3370 | type = STOREB_STUB; |
3371 | break; |
3372 | case 0x29: // SH |
57871462 |
3373 | if(!c||memtarget) { |
277718fa |
3374 | int a = addr; |
37387d8b |
3375 | if (fastio_reg_override >= 0) |
3376 | a = fastio_reg_override; |
3377 | do_store_hword(a, 0, tl, offset_reg, 1); |
3378 | } |
3379 | type = STOREH_STUB; |
3380 | break; |
3381 | case 0x2B: // SW |
dadf55f2 |
3382 | if(!c||memtarget) { |
37387d8b |
3383 | int a = addr; |
3384 | if (fastio_reg_override >= 0) |
3385 | a = fastio_reg_override; |
3386 | do_store_word(a, 0, tl, offset_reg, 1); |
3387 | } |
3388 | type = STOREW_STUB; |
3389 | break; |
37387d8b |
3390 | default: |
9c45ca93 |
3391 | assert(0); |
57871462 |
3392 | } |
37387d8b |
3393 | if (fastio_reg_override == HOST_TEMPREG || offset_reg == HOST_TEMPREG) |
d1e4ebd9 |
3394 | host_tempreg_release(); |
684b6816 |
3395 | if (jaddr) { |
b96d3df7 |
3396 | // PCSX store handlers don't check invcode again |
2330734f |
3397 | add_stub_r(type,jaddr,out,i,addr,i_regs,ccadj_,reglist); |
7a518516 |
3398 | } |
684b6816 |
3399 | if (!c || is_ram_addr(addr_const)) |
3400 | do_store_smc_check(i, i_regs, reglist, addr); |
3401 | if (c && !memtarget) |
3402 | inline_writestub(type, i, addr_const, i_regs->regmap, dops[i].rs2, ccadj_, reglist); |
7a518516 |
3403 | // basic current block modification detection.. |
3404 | // not looking back as that should be in mips cache already |
3968e69e |
3405 | // (see Spyro2 title->attract mode) |
684b6816 |
3406 | if (start + i*4 < addr_const && addr_const < start + slen*4) { |
3407 | SysPrintf("write to %08x hits block %08x, pc=%08x\n", addr_const, start, start+i*4); |
7a518516 |
3408 | assert(i_regs->regmap==regs[i].regmap); // not delay slot |
3409 | if(i_regs->regmap==regs[i].regmap) { |
ad49de89 |
3410 | load_all_consts(regs[i].regmap_entry,regs[i].wasdirty,i); |
3411 | wb_dirtys(regs[i].regmap_entry,regs[i].wasdirty); |
7a518516 |
3412 | emit_movimm(start+i*4+4,0); |
643aeae3 |
3413 | emit_writeword(0,&pcaddr); |
d1e4ebd9 |
3414 | emit_addimm(HOST_CCREG,2,HOST_CCREG); |
104df9d3 |
3415 | emit_far_call(ndrc_get_addr_ht); |
d1e4ebd9 |
3416 | emit_jmpreg(0); |
7a518516 |
3417 | } |
3eaa7048 |
3418 | } |
57871462 |
3419 | } |
3420 | |
2330734f |
3421 | static void storelr_assemble(int i, const struct regstat *i_regs, int ccadj_) |
57871462 |
3422 | { |
277718fa |
3423 | int addr = cinfo[i].addr; |
9c45ca93 |
3424 | int s,tl; |
57871462 |
3425 | int offset; |
b14b6a8f |
3426 | void *jaddr=0; |
37387d8b |
3427 | void *case1, *case23, *case3; |
df4dc2b1 |
3428 | void *done0, *done1, *done2; |
af4ee1fe |
3429 | int memtarget=0,c=0; |
37387d8b |
3430 | int offset_reg = -1; |
684b6816 |
3431 | u_int addr_const = ~0; |
3432 | u_int reglist = get_host_reglist(i_regs->regmap); |
cf95b4f0 |
3433 | tl=get_reg(i_regs->regmap,dops[i].rs2); |
3434 | s=get_reg(i_regs->regmap,dops[i].rs1); |
277718fa |
3435 | offset=cinfo[i].imm; |
57871462 |
3436 | if(s>=0) { |
684b6816 |
3437 | c = (i_regs->isconst >> s) & 1; |
3438 | if (c) { |
3439 | addr_const = constmap[i][s] + offset; |
3440 | memtarget = ((signed int)addr_const) < (signed int)(0x80000000 + RAM_SIZE); |
af4ee1fe |
3441 | } |
57871462 |
3442 | } |
3443 | assert(tl>=0); |
277718fa |
3444 | assert(addr >= 0); |
684b6816 |
3445 | reglist |= 1u << addr; |
1edfcc68 |
3446 | if(!c) { |
277718fa |
3447 | emit_cmpimm(addr, RAM_SIZE); |
b14b6a8f |
3448 | jaddr=out; |
1edfcc68 |
3449 | emit_jno(0); |
3450 | } |
3451 | else |
3452 | { |
cf95b4f0 |
3453 | if(!memtarget||!dops[i].rs1) { |
b14b6a8f |
3454 | jaddr=out; |
535d208a |
3455 | emit_jmp(0); |
57871462 |
3456 | } |
535d208a |
3457 | } |
37387d8b |
3458 | if (ram_offset) |
3459 | offset_reg = get_ro_reg(i_regs, 0); |
535d208a |
3460 | |
277718fa |
3461 | emit_testimm(addr,2); |
37387d8b |
3462 | case23=out; |
535d208a |
3463 | emit_jne(0); |
277718fa |
3464 | emit_testimm(addr,1); |
df4dc2b1 |
3465 | case1=out; |
535d208a |
3466 | emit_jne(0); |
3467 | // 0 |
37387d8b |
3468 | if (dops[i].opcode == 0x2A) { // SWL |
3469 | // Write msb into least significant byte |
3470 | if (dops[i].rs2) emit_rorimm(tl, 24, tl); |
277718fa |
3471 | do_store_byte(addr, tl, offset_reg); |
37387d8b |
3472 | if (dops[i].rs2) emit_rorimm(tl, 8, tl); |
535d208a |
3473 | } |
37387d8b |
3474 | else if (dops[i].opcode == 0x2E) { // SWR |
3475 | // Write entire word |
277718fa |
3476 | do_store_word(addr, 0, tl, offset_reg, 1); |
535d208a |
3477 | } |
37387d8b |
3478 | done0 = out; |
535d208a |
3479 | emit_jmp(0); |
3480 | // 1 |
df4dc2b1 |
3481 | set_jump_target(case1, out); |
37387d8b |
3482 | if (dops[i].opcode == 0x2A) { // SWL |
3483 | // Write two msb into two least significant bytes |
3484 | if (dops[i].rs2) emit_rorimm(tl, 16, tl); |
684b6816 |
3485 | do_store_hword(addr, -1, tl, offset_reg, 1); |
37387d8b |
3486 | if (dops[i].rs2) emit_rorimm(tl, 16, tl); |
535d208a |
3487 | } |
37387d8b |
3488 | else if (dops[i].opcode == 0x2E) { // SWR |
3489 | // Write 3 lsb into three most significant bytes |
277718fa |
3490 | do_store_byte(addr, tl, offset_reg); |
37387d8b |
3491 | if (dops[i].rs2) emit_rorimm(tl, 8, tl); |
684b6816 |
3492 | do_store_hword(addr, 1, tl, offset_reg, 1); |
37387d8b |
3493 | if (dops[i].rs2) emit_rorimm(tl, 24, tl); |
535d208a |
3494 | } |
df4dc2b1 |
3495 | done1=out; |
535d208a |
3496 | emit_jmp(0); |
37387d8b |
3497 | // 2,3 |
3498 | set_jump_target(case23, out); |
277718fa |
3499 | emit_testimm(addr,1); |
37387d8b |
3500 | case3 = out; |
535d208a |
3501 | emit_jne(0); |
37387d8b |
3502 | // 2 |
cf95b4f0 |
3503 | if (dops[i].opcode==0x2A) { // SWL |
37387d8b |
3504 | // Write 3 msb into three least significant bytes |
3505 | if (dops[i].rs2) emit_rorimm(tl, 8, tl); |
277718fa |
3506 | do_store_hword(addr, -2, tl, offset_reg, 1); |
37387d8b |
3507 | if (dops[i].rs2) emit_rorimm(tl, 16, tl); |
277718fa |
3508 | do_store_byte(addr, tl, offset_reg); |
37387d8b |
3509 | if (dops[i].rs2) emit_rorimm(tl, 8, tl); |
535d208a |
3510 | } |
37387d8b |
3511 | else if (dops[i].opcode == 0x2E) { // SWR |
3512 | // Write two lsb into two most significant bytes |
277718fa |
3513 | do_store_hword(addr, 0, tl, offset_reg, 1); |
535d208a |
3514 | } |
37387d8b |
3515 | done2 = out; |
535d208a |
3516 | emit_jmp(0); |
3517 | // 3 |
df4dc2b1 |
3518 | set_jump_target(case3, out); |
37387d8b |
3519 | if (dops[i].opcode == 0x2A) { // SWL |
684b6816 |
3520 | do_store_word(addr, -3, tl, offset_reg, 1); |
535d208a |
3521 | } |
37387d8b |
3522 | else if (dops[i].opcode == 0x2E) { // SWR |
277718fa |
3523 | do_store_byte(addr, tl, offset_reg); |
535d208a |
3524 | } |
df4dc2b1 |
3525 | set_jump_target(done0, out); |
3526 | set_jump_target(done1, out); |
3527 | set_jump_target(done2, out); |
37387d8b |
3528 | if (offset_reg == HOST_TEMPREG) |
3529 | host_tempreg_release(); |
684b6816 |
3530 | if (!c || !memtarget) |
277718fa |
3531 | add_stub_r(STORELR_STUB,jaddr,out,i,addr,i_regs,ccadj_,reglist); |
684b6816 |
3532 | if (!c || is_ram_addr(addr_const)) |
3533 | do_store_smc_check(i, i_regs, reglist, addr); |
57871462 |
3534 | } |
3535 | |
2330734f |
3536 | static void cop0_assemble(int i, const struct regstat *i_regs, int ccadj_) |
8062d65a |
3537 | { |
cf95b4f0 |
3538 | if(dops[i].opcode2==0) // MFC0 |
8062d65a |
3539 | { |
a5cd72d0 |
3540 | signed char t=get_reg_w(i_regs->regmap, dops[i].rt1); |
8062d65a |
3541 | u_int copr=(source[i]>>11)&0x1f; |
cf95b4f0 |
3542 | if(t>=0&&dops[i].rt1!=0) { |
8062d65a |
3543 | emit_readword(®_cop0[copr],t); |
3544 | } |
3545 | } |
cf95b4f0 |
3546 | else if(dops[i].opcode2==4) // MTC0 |
8062d65a |
3547 | { |
de6dbc52 |
3548 | int s = get_reg(i_regs->regmap, dops[i].rs1); |
3549 | int cc = get_reg(i_regs->regmap, CCREG); |
8062d65a |
3550 | char copr=(source[i]>>11)&0x1f; |
3551 | assert(s>=0); |
cf95b4f0 |
3552 | wb_register(dops[i].rs1,i_regs->regmap,i_regs->dirty); |
de6dbc52 |
3553 | if (copr == 12 || copr == 13) { |
8062d65a |
3554 | emit_readword(&last_count,HOST_TEMPREG); |
de6dbc52 |
3555 | if (cc != HOST_CCREG) |
3556 | emit_loadreg(CCREG, HOST_CCREG); |
3557 | emit_add(HOST_CCREG, HOST_TEMPREG, HOST_CCREG); |
3558 | emit_addimm(HOST_CCREG, ccadj_ + 2, HOST_CCREG); |
3559 | emit_writeword(HOST_CCREG, &psxRegs.cycle); |
8062d65a |
3560 | if (is_delayslot) { |
3561 | // burn cycles to cause cc_interrupt, which will |
3562 | // reschedule next_interupt. Relies on CCREG from above. |
3563 | assem_debug("MTC0 DS %d\n", copr); |
3564 | emit_writeword(HOST_CCREG,&last_count); |
3565 | emit_movimm(0,HOST_CCREG); |
3566 | emit_storereg(CCREG,HOST_CCREG); |
cf95b4f0 |
3567 | emit_loadreg(dops[i].rs1,1); |
8062d65a |
3568 | emit_movimm(copr,0); |
2a014d73 |
3569 | emit_far_call(pcsx_mtc0_ds); |
cf95b4f0 |
3570 | emit_loadreg(dops[i].rs1,s); |
8062d65a |
3571 | return; |
3572 | } |
3573 | emit_movimm(start+i*4+4,HOST_TEMPREG); |
3574 | emit_writeword(HOST_TEMPREG,&pcaddr); |
3575 | emit_movimm(0,HOST_TEMPREG); |
3576 | emit_writeword(HOST_TEMPREG,&pending_exception); |
3577 | } |
de6dbc52 |
3578 | if( s != 1) |
3579 | emit_mov(s, 1); |
3580 | emit_movimm(copr, 0); |
2a014d73 |
3581 | emit_far_call(pcsx_mtc0); |
de6dbc52 |
3582 | if (copr == 12 || copr == 13) { |
d7546062 |
3583 | emit_readword(&psxRegs.cycle,HOST_CCREG); |
de6dbc52 |
3584 | emit_readword(&last_count,HOST_TEMPREG); |
8062d65a |
3585 | emit_sub(HOST_CCREG,HOST_TEMPREG,HOST_CCREG); |
de6dbc52 |
3586 | //emit_writeword(HOST_TEMPREG,&last_count); |
8062d65a |
3587 | assert(!is_delayslot); |
9b495f6e |
3588 | emit_readword(&pending_exception,HOST_TEMPREG); |
3589 | emit_test(HOST_TEMPREG,HOST_TEMPREG); |
d1e4ebd9 |
3590 | void *jaddr = out; |
3591 | emit_jeq(0); |
3592 | emit_readword(&pcaddr, 0); |
104df9d3 |
3593 | emit_far_call(ndrc_get_addr_ht); |
d1e4ebd9 |
3594 | emit_jmpreg(0); |
3595 | set_jump_target(jaddr, out); |
de6dbc52 |
3596 | emit_addimm(HOST_CCREG, -ccadj_ - 2, HOST_CCREG); |
3597 | if (cc != HOST_CCREG) |
3598 | emit_storereg(CCREG, HOST_CCREG); |
8062d65a |
3599 | } |
cf95b4f0 |
3600 | emit_loadreg(dops[i].rs1,s); |
8062d65a |
3601 | } |
8062d65a |
3602 | } |
3603 | |
277718fa |
3604 | static void rfe_assemble(int i, const struct regstat *i_regs) |
8062d65a |
3605 | { |
a5cd72d0 |
3606 | emit_readword(&psxRegs.CP0.n.SR, 0); |
3607 | emit_andimm(0, 0x3c, 1); |
3608 | emit_andimm(0, ~0xf, 0); |
3609 | emit_orrshr_imm(1, 2, 0); |
3610 | emit_writeword(0, &psxRegs.CP0.n.SR); |
8062d65a |
3611 | } |
3612 | |
e3c6bdb5 |
3613 | static int cop2_is_stalling_op(int i, int *cycles) |
3614 | { |
cf95b4f0 |
3615 | if (dops[i].opcode == 0x3a) { // SWC2 |
e3c6bdb5 |
3616 | *cycles = 0; |
3617 | return 1; |
3618 | } |
cf95b4f0 |
3619 | if (dops[i].itype == COP2 && (dops[i].opcode2 == 0 || dops[i].opcode2 == 2)) { // MFC2/CFC2 |
e3c6bdb5 |
3620 | *cycles = 0; |
3621 | return 1; |
3622 | } |
cf95b4f0 |
3623 | if (dops[i].itype == C2OP) { |
e3c6bdb5 |
3624 | *cycles = gte_cycletab[source[i] & 0x3f]; |
3625 | return 1; |
3626 | } |
3627 | // ... what about MTC2/CTC2/LWC2? |
3628 | return 0; |
3629 | } |
3630 | |
3631 | #if 0 |
3632 | static void log_gte_stall(int stall, u_int cycle) |
3633 | { |
3634 | if ((u_int)stall <= 44) |
3635 | printf("x stall %2d %u\n", stall, cycle + last_count); |
e3c6bdb5 |
3636 | } |
3637 | |
3638 | static void emit_log_gte_stall(int i, int stall, u_int reglist) |
3639 | { |
3640 | save_regs(reglist); |
3641 | if (stall > 0) |
3642 | emit_movimm(stall, 0); |
3643 | else |
3644 | emit_mov(HOST_TEMPREG, 0); |
277718fa |
3645 | emit_addimm(HOST_CCREG, cinfo[i].ccadj, 1); |
e3c6bdb5 |
3646 | emit_far_call(log_gte_stall); |
3647 | restore_regs(reglist); |
3648 | } |
3649 | #endif |
3650 | |
32631e6a |
3651 | static void cop2_do_stall_check(u_int op, int i, const struct regstat *i_regs, u_int reglist) |
81dbbf4c |
3652 | { |
e3c6bdb5 |
3653 | int j = i, other_gte_op_cycles = -1, stall = -MAXBLOCK, cycles_passed; |
3654 | int rtmp = reglist_find_free(reglist); |
3655 | |
32631e6a |
3656 | if (HACK_ENABLED(NDHACK_NO_STALLS)) |
81dbbf4c |
3657 | return; |
81dbbf4c |
3658 | if (get_reg(i_regs->regmap, CCREG) != HOST_CCREG) { |
3659 | // happens occasionally... cc evicted? Don't bother then |
3660 | //printf("no cc %08x\n", start + i*4); |
3661 | return; |
3662 | } |
cf95b4f0 |
3663 | if (!dops[i].bt) { |
e3c6bdb5 |
3664 | for (j = i - 1; j >= 0; j--) { |
cf95b4f0 |
3665 | //if (dops[j].is_ds) break; |
3666 | if (cop2_is_stalling_op(j, &other_gte_op_cycles) || dops[j].bt) |
e3c6bdb5 |
3667 | break; |
277718fa |
3668 | if (j > 0 && cinfo[j - 1].ccadj > cinfo[j].ccadj) |
2330734f |
3669 | break; |
e3c6bdb5 |
3670 | } |
32631e6a |
3671 | j = max(j, 0); |
e3c6bdb5 |
3672 | } |
277718fa |
3673 | cycles_passed = cinfo[i].ccadj - cinfo[j].ccadj; |
e3c6bdb5 |
3674 | if (other_gte_op_cycles >= 0) |
3675 | stall = other_gte_op_cycles - cycles_passed; |
3676 | else if (cycles_passed >= 44) |
3677 | stall = 0; // can't stall |
3678 | if (stall == -MAXBLOCK && rtmp >= 0) { |
3679 | // unknown stall, do the expensive runtime check |
32631e6a |
3680 | assem_debug("; cop2_do_stall_check\n"); |
e3c6bdb5 |
3681 | #if 0 // too slow |
3682 | save_regs(reglist); |
3683 | emit_movimm(gte_cycletab[op], 0); |
277718fa |
3684 | emit_addimm(HOST_CCREG, cinfo[i].ccadj, 1); |
e3c6bdb5 |
3685 | emit_far_call(call_gteStall); |
3686 | restore_regs(reglist); |
3687 | #else |
3688 | host_tempreg_acquire(); |
3689 | emit_readword(&psxRegs.gteBusyCycle, rtmp); |
277718fa |
3690 | emit_addimm(rtmp, -cinfo[i].ccadj, rtmp); |
e3c6bdb5 |
3691 | emit_sub(rtmp, HOST_CCREG, HOST_TEMPREG); |
3692 | emit_cmpimm(HOST_TEMPREG, 44); |
3693 | emit_cmovb_reg(rtmp, HOST_CCREG); |
3694 | //emit_log_gte_stall(i, 0, reglist); |
3695 | host_tempreg_release(); |
3696 | #endif |
3697 | } |
3698 | else if (stall > 0) { |
3699 | //emit_log_gte_stall(i, stall, reglist); |
3700 | emit_addimm(HOST_CCREG, stall, HOST_CCREG); |
3701 | } |
3702 | |
3703 | // save gteBusyCycle, if needed |
3704 | if (gte_cycletab[op] == 0) |
3705 | return; |
3706 | other_gte_op_cycles = -1; |
3707 | for (j = i + 1; j < slen; j++) { |
3708 | if (cop2_is_stalling_op(j, &other_gte_op_cycles)) |
3709 | break; |
fe807a8a |
3710 | if (dops[j].is_jump) { |
e3c6bdb5 |
3711 | // check ds |
3712 | if (j + 1 < slen && cop2_is_stalling_op(j + 1, &other_gte_op_cycles)) |
3713 | j++; |
3714 | break; |
3715 | } |
3716 | } |
3717 | if (other_gte_op_cycles >= 0) |
3718 | // will handle stall when assembling that op |
3719 | return; |
277718fa |
3720 | cycles_passed = cinfo[min(j, slen -1)].ccadj - cinfo[i].ccadj; |
e3c6bdb5 |
3721 | if (cycles_passed >= 44) |
3722 | return; |
3723 | assem_debug("; save gteBusyCycle\n"); |
3724 | host_tempreg_acquire(); |
3725 | #if 0 |
3726 | emit_readword(&last_count, HOST_TEMPREG); |
3727 | emit_add(HOST_TEMPREG, HOST_CCREG, HOST_TEMPREG); |
277718fa |
3728 | emit_addimm(HOST_TEMPREG, cinfo[i].ccadj, HOST_TEMPREG); |
e3c6bdb5 |
3729 | emit_addimm(HOST_TEMPREG, gte_cycletab[op]), HOST_TEMPREG); |
3730 | emit_writeword(HOST_TEMPREG, &psxRegs.gteBusyCycle); |
3731 | #else |
277718fa |
3732 | emit_addimm(HOST_CCREG, cinfo[i].ccadj + gte_cycletab[op], HOST_TEMPREG); |
e3c6bdb5 |
3733 | emit_writeword(HOST_TEMPREG, &psxRegs.gteBusyCycle); |
3734 | #endif |
3735 | host_tempreg_release(); |
81dbbf4c |
3736 | } |
3737 | |
32631e6a |
3738 | static int is_mflohi(int i) |
3739 | { |
cf95b4f0 |
3740 | return (dops[i].itype == MOV && (dops[i].rs1 == HIREG || dops[i].rs1 == LOREG)); |
32631e6a |
3741 | } |
3742 | |
3743 | static int check_multdiv(int i, int *cycles) |
3744 | { |
cf95b4f0 |
3745 | if (dops[i].itype != MULTDIV) |
32631e6a |
3746 | return 0; |
cf95b4f0 |
3747 | if (dops[i].opcode2 == 0x18 || dops[i].opcode2 == 0x19) // MULT(U) |
32631e6a |
3748 | *cycles = 11; // approx from 7 11 14 |
3749 | else |
3750 | *cycles = 37; |
3751 | return 1; |
3752 | } |
3753 | |
2330734f |
3754 | static void multdiv_prepare_stall(int i, const struct regstat *i_regs, int ccadj_) |
32631e6a |
3755 | { |
3756 | int j, found = 0, c = 0; |
3757 | if (HACK_ENABLED(NDHACK_NO_STALLS)) |
3758 | return; |
3759 | if (get_reg(i_regs->regmap, CCREG) != HOST_CCREG) { |
3760 | // happens occasionally... cc evicted? Don't bother then |
3761 | return; |
3762 | } |
3763 | for (j = i + 1; j < slen; j++) { |
cf95b4f0 |
3764 | if (dops[j].bt) |
32631e6a |
3765 | break; |
3766 | if ((found = is_mflohi(j))) |
3767 | break; |
fe807a8a |
3768 | if (dops[j].is_jump) { |
32631e6a |
3769 | // check ds |
3770 | if (j + 1 < slen && (found = is_mflohi(j + 1))) |
3771 | j++; |
3772 | break; |
3773 | } |
3774 | } |
3775 | if (found) |
3776 | // handle all in multdiv_do_stall() |
3777 | return; |
3778 | check_multdiv(i, &c); |
3779 | assert(c > 0); |
3780 | assem_debug("; muldiv prepare stall %d\n", c); |
3781 | host_tempreg_acquire(); |
2330734f |
3782 | emit_addimm(HOST_CCREG, ccadj_ + c, HOST_TEMPREG); |
32631e6a |
3783 | emit_writeword(HOST_TEMPREG, &psxRegs.muldivBusyCycle); |
3784 | host_tempreg_release(); |
3785 | } |
3786 | |
3787 | static void multdiv_do_stall(int i, const struct regstat *i_regs) |
3788 | { |
3789 | int j, known_cycles = 0; |
3790 | u_int reglist = get_host_reglist(i_regs->regmap); |
9de8a0c3 |
3791 | int rtmp = get_reg_temp(i_regs->regmap); |
32631e6a |
3792 | if (rtmp < 0) |
3793 | rtmp = reglist_find_free(reglist); |
3794 | if (HACK_ENABLED(NDHACK_NO_STALLS)) |
3795 | return; |
3796 | if (get_reg(i_regs->regmap, CCREG) != HOST_CCREG || rtmp < 0) { |
3797 | // happens occasionally... cc evicted? Don't bother then |
3798 | //printf("no cc/rtmp %08x\n", start + i*4); |
3799 | return; |
3800 | } |
cf95b4f0 |
3801 | if (!dops[i].bt) { |
32631e6a |
3802 | for (j = i - 1; j >= 0; j--) { |
cf95b4f0 |
3803 | if (dops[j].is_ds) break; |
2330734f |
3804 | if (check_multdiv(j, &known_cycles)) |
32631e6a |
3805 | break; |
3806 | if (is_mflohi(j)) |
3807 | // already handled by this op |
3808 | return; |
277718fa |
3809 | if (dops[j].bt || (j > 0 && cinfo[j - 1].ccadj > cinfo[j].ccadj)) |
2330734f |
3810 | break; |
32631e6a |
3811 | } |
3812 | j = max(j, 0); |
3813 | } |
3814 | if (known_cycles > 0) { |
277718fa |
3815 | known_cycles -= cinfo[i].ccadj - cinfo[j].ccadj; |
32631e6a |
3816 | assem_debug("; muldiv stall resolved %d\n", known_cycles); |
3817 | if (known_cycles > 0) |
3818 | emit_addimm(HOST_CCREG, known_cycles, HOST_CCREG); |
3819 | return; |
3820 | } |
3821 | assem_debug("; muldiv stall unresolved\n"); |
3822 | host_tempreg_acquire(); |
3823 | emit_readword(&psxRegs.muldivBusyCycle, rtmp); |
277718fa |
3824 | emit_addimm(rtmp, -cinfo[i].ccadj, rtmp); |
32631e6a |
3825 | emit_sub(rtmp, HOST_CCREG, HOST_TEMPREG); |
3826 | emit_cmpimm(HOST_TEMPREG, 37); |
3827 | emit_cmovb_reg(rtmp, HOST_CCREG); |
3828 | //emit_log_gte_stall(i, 0, reglist); |
3829 | host_tempreg_release(); |
3830 | } |
3831 | |
8062d65a |
3832 | static void cop2_get_dreg(u_int copr,signed char tl,signed char temp) |
3833 | { |
3834 | switch (copr) { |
3835 | case 1: |
3836 | case 3: |
3837 | case 5: |
3838 | case 8: |
3839 | case 9: |
3840 | case 10: |
3841 | case 11: |
3842 | emit_readword(®_cop2d[copr],tl); |
3843 | emit_signextend16(tl,tl); |
3844 | emit_writeword(tl,®_cop2d[copr]); // hmh |
3845 | break; |
3846 | case 7: |
3847 | case 16: |
3848 | case 17: |
3849 | case 18: |
3850 | case 19: |
3851 | emit_readword(®_cop2d[copr],tl); |
3852 | emit_andimm(tl,0xffff,tl); |
3853 | emit_writeword(tl,®_cop2d[copr]); |
3854 | break; |
3855 | case 15: |
3856 | emit_readword(®_cop2d[14],tl); // SXY2 |
3857 | emit_writeword(tl,®_cop2d[copr]); |
3858 | break; |
3859 | case 28: |
3860 | case 29: |
3968e69e |
3861 | c2op_mfc2_29_assemble(tl,temp); |
8062d65a |
3862 | break; |
3863 | default: |
3864 | emit_readword(®_cop2d[copr],tl); |
3865 | break; |
3866 | } |
3867 | } |
3868 | |
3869 | static void cop2_put_dreg(u_int copr,signed char sl,signed char temp) |
3870 | { |
3871 | switch (copr) { |
3872 | case 15: |
3873 | emit_readword(®_cop2d[13],temp); // SXY1 |
3874 | emit_writeword(sl,®_cop2d[copr]); |
3875 | emit_writeword(temp,®_cop2d[12]); // SXY0 |
3876 | emit_readword(®_cop2d[14],temp); // SXY2 |
3877 | emit_writeword(sl,®_cop2d[14]); |
3878 | emit_writeword(temp,®_cop2d[13]); // SXY1 |
3879 | break; |
3880 | case 28: |
3881 | emit_andimm(sl,0x001f,temp); |
3882 | emit_shlimm(temp,7,temp); |
3883 | emit_writeword(temp,®_cop2d[9]); |
3884 | emit_andimm(sl,0x03e0,temp); |
3885 | emit_shlimm(temp,2,temp); |
3886 | emit_writeword(temp,®_cop2d[10]); |
3887 | emit_andimm(sl,0x7c00,temp); |
3888 | emit_shrimm(temp,3,temp); |
3889 | emit_writeword(temp,®_cop2d[11]); |
3890 | emit_writeword(sl,®_cop2d[28]); |
3891 | break; |
3892 | case 30: |
3968e69e |
3893 | emit_xorsar_imm(sl,sl,31,temp); |
be516ebe |
3894 | #if defined(HAVE_ARMV5) || defined(__aarch64__) |
8062d65a |
3895 | emit_clz(temp,temp); |
3896 | #else |
3897 | emit_movs(temp,HOST_TEMPREG); |
3898 | emit_movimm(0,temp); |
3899 | emit_jeq((int)out+4*4); |
3900 | emit_addpl_imm(temp,1,temp); |
3901 | emit_lslpls_imm(HOST_TEMPREG,1,HOST_TEMPREG); |
3902 | emit_jns((int)out-2*4); |
3903 | #endif |
3904 | emit_writeword(sl,®_cop2d[30]); |
3905 | emit_writeword(temp,®_cop2d[31]); |
3906 | break; |
3907 | case 31: |
3908 | break; |
3909 | default: |
3910 | emit_writeword(sl,®_cop2d[copr]); |
3911 | break; |
3912 | } |
3913 | } |
3914 | |
2330734f |
3915 | static void c2ls_assemble(int i, const struct regstat *i_regs, int ccadj_) |
b9b61529 |
3916 | { |
3917 | int s,tl; |
3918 | int ar; |
3919 | int offset; |
1fd1aceb |
3920 | int memtarget=0,c=0; |
b14b6a8f |
3921 | void *jaddr2=NULL; |
3922 | enum stub_type type; |
37387d8b |
3923 | int offset_reg = -1; |
3924 | int fastio_reg_override = -1; |
684b6816 |
3925 | u_int addr_const = ~0; |
81dbbf4c |
3926 | u_int reglist=get_host_reglist(i_regs->regmap); |
b9b61529 |
3927 | u_int copr=(source[i]>>16)&0x1f; |
cf95b4f0 |
3928 | s=get_reg(i_regs->regmap,dops[i].rs1); |
b9b61529 |
3929 | tl=get_reg(i_regs->regmap,FTEMP); |
277718fa |
3930 | offset=cinfo[i].imm; |
b9b61529 |
3931 | assert(tl>=0); |
b9b61529 |
3932 | |
b9b61529 |
3933 | if(i_regs->regmap[HOST_CCREG]==CCREG) |
3934 | reglist&=~(1<<HOST_CCREG); |
3935 | |
3936 | // get the address |
277718fa |
3937 | ar = cinfo[i].addr; |
3938 | assert(ar >= 0); |
cf95b4f0 |
3939 | if (dops[i].opcode==0x3a) { // SWC2 |
277718fa |
3940 | reglist |= 1<<ar; |
b9b61529 |
3941 | } |
684b6816 |
3942 | if (s >= 0) { |
3943 | c = (i_regs->isconst >> s) & 1; |
3944 | if (c) { |
3945 | addr_const = constmap[i][s] + offset; |
3946 | memtarget = ((signed int)addr_const) < (signed int)(0x80000000 + RAM_SIZE); |
3947 | } |
3948 | } |
b9b61529 |
3949 | |
32631e6a |
3950 | cop2_do_stall_check(0, i, i_regs, reglist); |
3951 | |
cf95b4f0 |
3952 | if (dops[i].opcode==0x3a) { // SWC2 |
3968e69e |
3953 | cop2_get_dreg(copr,tl,-1); |
1fd1aceb |
3954 | type=STOREW_STUB; |
b9b61529 |
3955 | } |
1fd1aceb |
3956 | else |
b9b61529 |
3957 | type=LOADW_STUB; |
1fd1aceb |
3958 | |
3959 | if(c&&!memtarget) { |
b14b6a8f |
3960 | jaddr2=out; |
1fd1aceb |
3961 | emit_jmp(0); // inline_readstub/inline_writestub? |
b9b61529 |
3962 | } |
1fd1aceb |
3963 | else { |
3964 | if(!c) { |
37387d8b |
3965 | jaddr2 = emit_fastpath_cmp_jump(i, i_regs, ar, |
277718fa |
3966 | &offset_reg, &fastio_reg_override, ccadj_); |
37387d8b |
3967 | } |
3968 | else if (ram_offset && memtarget) { |
3969 | offset_reg = get_ro_reg(i_regs, 0); |
3970 | } |
3971 | switch (dops[i].opcode) { |
3972 | case 0x32: { // LWC2 |
3973 | int a = ar; |
3974 | if (fastio_reg_override >= 0) |
3975 | a = fastio_reg_override; |
3976 | do_load_word(a, tl, offset_reg); |
3977 | break; |
1fd1aceb |
3978 | } |
37387d8b |
3979 | case 0x3a: { // SWC2 |
1fd1aceb |
3980 | #ifdef DESTRUCTIVE_SHIFT |
3981 | if(!offset&&!c&&s>=0) emit_mov(s,ar); |
3982 | #endif |
37387d8b |
3983 | int a = ar; |
3984 | if (fastio_reg_override >= 0) |
3985 | a = fastio_reg_override; |
3986 | do_store_word(a, 0, tl, offset_reg, 1); |
3987 | break; |
3988 | } |
3989 | default: |
3990 | assert(0); |
1fd1aceb |
3991 | } |
b9b61529 |
3992 | } |
37387d8b |
3993 | if (fastio_reg_override == HOST_TEMPREG || offset_reg == HOST_TEMPREG) |
d1e4ebd9 |
3994 | host_tempreg_release(); |
b9b61529 |
3995 | if(jaddr2) |
2330734f |
3996 | add_stub_r(type,jaddr2,out,i,ar,i_regs,ccadj_,reglist); |
684b6816 |
3997 | if (dops[i].opcode == 0x3a && (!c || is_ram_addr(addr_const))) // SWC2 |
9b495f6e |
3998 | do_store_smc_check(i, i_regs, reglist, ar); |
684b6816 |
3999 | if (dops[i].opcode == 0x32) { // LWC2 |
d1e4ebd9 |
4000 | host_tempreg_acquire(); |
b9b61529 |
4001 | cop2_put_dreg(copr,tl,HOST_TEMPREG); |
d1e4ebd9 |
4002 | host_tempreg_release(); |
b9b61529 |
4003 | } |
4004 | } |
4005 | |
81dbbf4c |
4006 | static void cop2_assemble(int i, const struct regstat *i_regs) |
8062d65a |
4007 | { |
81dbbf4c |
4008 | u_int copr = (source[i]>>11) & 0x1f; |
9de8a0c3 |
4009 | signed char temp = get_reg_temp(i_regs->regmap); |
81dbbf4c |
4010 | |
32631e6a |
4011 | if (!HACK_ENABLED(NDHACK_NO_STALLS)) { |
4012 | u_int reglist = reglist_exclude(get_host_reglist(i_regs->regmap), temp, -1); |
cf95b4f0 |
4013 | if (dops[i].opcode2 == 0 || dops[i].opcode2 == 2) { // MFC2/CFC2 |
4014 | signed char tl = get_reg(i_regs->regmap, dops[i].rt1); |
32631e6a |
4015 | reglist = reglist_exclude(reglist, tl, -1); |
81dbbf4c |
4016 | } |
32631e6a |
4017 | cop2_do_stall_check(0, i, i_regs, reglist); |
81dbbf4c |
4018 | } |
cf95b4f0 |
4019 | if (dops[i].opcode2==0) { // MFC2 |
a5cd72d0 |
4020 | signed char tl=get_reg_w(i_regs->regmap, dops[i].rt1); |
cf95b4f0 |
4021 | if(tl>=0&&dops[i].rt1!=0) |
8062d65a |
4022 | cop2_get_dreg(copr,tl,temp); |
4023 | } |
cf95b4f0 |
4024 | else if (dops[i].opcode2==4) { // MTC2 |
4025 | signed char sl=get_reg(i_regs->regmap,dops[i].rs1); |
8062d65a |
4026 | cop2_put_dreg(copr,sl,temp); |
4027 | } |
cf95b4f0 |
4028 | else if (dops[i].opcode2==2) // CFC2 |
8062d65a |
4029 | { |
a5cd72d0 |
4030 | signed char tl=get_reg_w(i_regs->regmap, dops[i].rt1); |
cf95b4f0 |
4031 | if(tl>=0&&dops[i].rt1!=0) |
8062d65a |
4032 | emit_readword(®_cop2c[copr],tl); |
4033 | } |
cf95b4f0 |
4034 | else if (dops[i].opcode2==6) // CTC2 |
8062d65a |
4035 | { |
cf95b4f0 |
4036 | signed char sl=get_reg(i_regs->regmap,dops[i].rs1); |
8062d65a |
4037 | switch(copr) { |
4038 | case 4: |
4039 | case 12: |
4040 | case 20: |
4041 | case 26: |
4042 | case 27: |
4043 | case 29: |
4044 | case 30: |
4045 | emit_signextend16(sl,temp); |
4046 | break; |
4047 | case 31: |
3968e69e |
4048 | c2op_ctc2_31_assemble(sl,temp); |
8062d65a |
4049 | break; |
4050 | default: |
4051 | temp=sl; |
4052 | break; |
4053 | } |
4054 | emit_writeword(temp,®_cop2c[copr]); |
4055 | assert(sl>=0); |
4056 | } |
4057 | } |
4058 | |
3968e69e |
4059 | static void do_unalignedwritestub(int n) |
4060 | { |
4061 | assem_debug("do_unalignedwritestub %x\n",start+stubs[n].a*4); |
4062 | literal_pool(256); |
4063 | set_jump_target(stubs[n].addr, out); |
4064 | |
4065 | int i=stubs[n].a; |
4066 | struct regstat *i_regs=(struct regstat *)stubs[n].c; |
4067 | int addr=stubs[n].b; |
4068 | u_int reglist=stubs[n].e; |
4069 | signed char *i_regmap=i_regs->regmap; |
4070 | int temp2=get_reg(i_regmap,FTEMP); |
4071 | int rt; |
cf95b4f0 |
4072 | rt=get_reg(i_regmap,dops[i].rs2); |
3968e69e |
4073 | assert(rt>=0); |
4074 | assert(addr>=0); |
cf95b4f0 |
4075 | assert(dops[i].opcode==0x2a||dops[i].opcode==0x2e); // SWL/SWR only implemented |
3968e69e |
4076 | reglist|=(1<<addr); |
4077 | reglist&=~(1<<temp2); |
4078 | |
3968e69e |
4079 | // don't bother with it and call write handler |
4080 | save_regs(reglist); |
4081 | pass_args(addr,rt); |
4082 | int cc=get_reg(i_regmap,CCREG); |
4083 | if(cc<0) |
4084 | emit_loadreg(CCREG,2); |
2330734f |
4085 | emit_addimm(cc<0?2:cc,(int)stubs[n].d+1,2); |
de6dbc52 |
4086 | emit_movimm(start + i*4,3); |
4087 | emit_writeword(3,&psxRegs.pc); |
cf95b4f0 |
4088 | emit_far_call((dops[i].opcode==0x2a?jump_handle_swl:jump_handle_swr)); |
2330734f |
4089 | emit_addimm(0,-((int)stubs[n].d+1),cc<0?2:cc); |
3968e69e |
4090 | if(cc<0) |
4091 | emit_storereg(CCREG,2); |
4092 | restore_regs(reglist); |
4093 | emit_jmp(stubs[n].retaddr); // return address |
3968e69e |
4094 | } |
4095 | |
a5cd72d0 |
4096 | static void do_overflowstub(int n) |
4097 | { |
4098 | assem_debug("do_overflowstub %x\n", start + (u_int)stubs[n].a * 4); |
4099 | literal_pool(24); |
4100 | int i = stubs[n].a; |
4101 | struct regstat *i_regs = (struct regstat *)stubs[n].c; |
4102 | int ccadj = stubs[n].d; |
4103 | set_jump_target(stubs[n].addr, out); |
4104 | wb_dirtys(regs[i].regmap, regs[i].dirty); |
4105 | exception_assemble(i, i_regs, ccadj); |
4106 | } |
4107 | |
277718fa |
4108 | static void do_alignmentstub(int n) |
4109 | { |
4110 | assem_debug("do_alignmentstub %x\n", start + (u_int)stubs[n].a * 4); |
4111 | literal_pool(24); |
4112 | int i = stubs[n].a; |
4113 | struct regstat *i_regs = (struct regstat *)stubs[n].c; |
4114 | int ccadj = stubs[n].d; |
4115 | int is_store = dops[i].itype == STORE || dops[i].opcode == 0x3A; // SWC2 |
4116 | int cause = (dops[i].opcode & 3) << 28; |
4117 | cause |= is_store ? (R3000E_AdES << 2) : (R3000E_AdEL << 2); |
4118 | set_jump_target(stubs[n].addr, out); |
4119 | wb_dirtys(regs[i].regmap, regs[i].dirty); |
4120 | if (stubs[n].b != 1) |
4121 | emit_mov(stubs[n].b, 1); // faulting address |
4122 | emit_movimm(cause, 0); |
4123 | exception_assemble(i, i_regs, ccadj); |
4124 | } |
4125 | |
57871462 |
4126 | #ifndef multdiv_assemble |
4127 | void multdiv_assemble(int i,struct regstat *i_regs) |
4128 | { |
4129 | printf("Need multdiv_assemble for this architecture.\n"); |
7c3a5182 |
4130 | abort(); |
57871462 |
4131 | } |
4132 | #endif |
4133 | |
2330734f |
4134 | static void mov_assemble(int i, const struct regstat *i_regs) |
57871462 |
4135 | { |
cf95b4f0 |
4136 | //if(dops[i].opcode2==0x10||dops[i].opcode2==0x12) { // MFHI/MFLO |
4137 | //if(dops[i].opcode2==0x11||dops[i].opcode2==0x13) { // MTHI/MTLO |
4138 | if(dops[i].rt1) { |
7c3a5182 |
4139 | signed char sl,tl; |
a5cd72d0 |
4140 | tl=get_reg_w(i_regs->regmap, dops[i].rt1); |
57871462 |
4141 | //assert(tl>=0); |
4142 | if(tl>=0) { |
cf95b4f0 |
4143 | sl=get_reg(i_regs->regmap,dops[i].rs1); |
57871462 |
4144 | if(sl>=0) emit_mov(sl,tl); |
cf95b4f0 |
4145 | else emit_loadreg(dops[i].rs1,tl); |
57871462 |
4146 | } |
4147 | } |
cf95b4f0 |
4148 | if (dops[i].rs1 == HIREG || dops[i].rs1 == LOREG) // MFHI/MFLO |
32631e6a |
4149 | multdiv_do_stall(i, i_regs); |
57871462 |
4150 | } |
4151 | |
3968e69e |
4152 | // call interpreter, exception handler, things that change pc/regs/cycles ... |
2330734f |
4153 | static void call_c_cpu_handler(int i, const struct regstat *i_regs, int ccadj_, u_int pc, void *func) |
57871462 |
4154 | { |
4155 | signed char ccreg=get_reg(i_regs->regmap,CCREG); |
4156 | assert(ccreg==HOST_CCREG); |
4157 | assert(!is_delayslot); |
581335b0 |
4158 | (void)ccreg; |
3968e69e |
4159 | |
4160 | emit_movimm(pc,3); // Get PC |
4161 | emit_readword(&last_count,2); |
4162 | emit_writeword(3,&psxRegs.pc); |
2330734f |
4163 | emit_addimm(HOST_CCREG,ccadj_,HOST_CCREG); |
3968e69e |
4164 | emit_add(2,HOST_CCREG,2); |
4165 | emit_writeword(2,&psxRegs.cycle); |
bc7c5acb |
4166 | emit_addimm_ptr(FP,(u_char *)&psxRegs - (u_char *)&dynarec_local,0); |
2a014d73 |
4167 | emit_far_call(func); |
4168 | emit_far_jump(jump_to_new_pc); |
3968e69e |
4169 | } |
4170 | |
a5cd72d0 |
4171 | static void exception_assemble(int i, const struct regstat *i_regs, int ccadj_) |
3968e69e |
4172 | { |
d1150cd6 |
4173 | // 'break' tends to be littered around to catch things like |
4174 | // division by 0 and is almost never executed, so don't emit much code here |
a5cd72d0 |
4175 | void *func; |
4176 | if (dops[i].itype == ALU || dops[i].itype == IMM16) |
4177 | func = is_delayslot ? jump_overflow_ds : jump_overflow; |
277718fa |
4178 | else if (dops[i].itype == LOAD || dops[i].itype == STORE) |
4179 | func = is_delayslot ? jump_addrerror_ds : jump_addrerror; |
a5cd72d0 |
4180 | else if (dops[i].opcode2 == 0x0C) |
4181 | func = is_delayslot ? jump_syscall_ds : jump_syscall; |
4182 | else |
4183 | func = is_delayslot ? jump_break_ds : jump_break; |
277718fa |
4184 | if (get_reg(i_regs->regmap, CCREG) != HOST_CCREG) // evicted |
4185 | emit_loadreg(CCREG, HOST_CCREG); |
d1150cd6 |
4186 | emit_movimm(start + i*4, 2); // pc |
4187 | emit_addimm(HOST_CCREG, ccadj_ + CLOCK_ADJUST(1), HOST_CCREG); |
4188 | emit_far_jump(func); |
7139f3c8 |
4189 | } |
4190 | |
bc7c5acb |
4191 | static void hlecall_bad() |
4192 | { |
a5cd72d0 |
4193 | assert(0); |
bc7c5acb |
4194 | } |
4195 | |
2330734f |
4196 | static void hlecall_assemble(int i, const struct regstat *i_regs, int ccadj_) |
7139f3c8 |
4197 | { |
bc7c5acb |
4198 | void *hlefunc = hlecall_bad; |
dd79da89 |
4199 | uint32_t hleCode = source[i] & 0x03ffffff; |
3968e69e |
4200 | if (hleCode < ARRAY_SIZE(psxHLEt)) |
4201 | hlefunc = psxHLEt[hleCode]; |
4202 | |
2330734f |
4203 | call_c_cpu_handler(i, i_regs, ccadj_, start + i*4+4, hlefunc); |
57871462 |
4204 | } |
4205 | |
2330734f |
4206 | static void intcall_assemble(int i, const struct regstat *i_regs, int ccadj_) |
1e973cb0 |
4207 | { |
2330734f |
4208 | call_c_cpu_handler(i, i_regs, ccadj_, start + i*4, execI); |
1e973cb0 |
4209 | } |
4210 | |
8062d65a |
4211 | static void speculate_mov(int rs,int rt) |
4212 | { |
4213 | if(rt!=0) { |
4214 | smrv_strong_next|=1<<rt; |
4215 | smrv[rt]=smrv[rs]; |
4216 | } |
4217 | } |
4218 | |
4219 | static void speculate_mov_weak(int rs,int rt) |
4220 | { |
4221 | if(rt!=0) { |
4222 | smrv_weak_next|=1<<rt; |
4223 | smrv[rt]=smrv[rs]; |
4224 | } |
4225 | } |
4226 | |
4227 | static void speculate_register_values(int i) |
4228 | { |
4229 | if(i==0) { |
4230 | memcpy(smrv,psxRegs.GPR.r,sizeof(smrv)); |
4231 | // gp,sp are likely to stay the same throughout the block |
4232 | smrv_strong_next=(1<<28)|(1<<29)|(1<<30); |
4233 | smrv_weak_next=~smrv_strong_next; |
4234 | //printf(" llr %08x\n", smrv[4]); |
4235 | } |
4236 | smrv_strong=smrv_strong_next; |
4237 | smrv_weak=smrv_weak_next; |
cf95b4f0 |
4238 | switch(dops[i].itype) { |
8062d65a |
4239 | case ALU: |
cf95b4f0 |
4240 | if ((smrv_strong>>dops[i].rs1)&1) speculate_mov(dops[i].rs1,dops[i].rt1); |
4241 | else if((smrv_strong>>dops[i].rs2)&1) speculate_mov(dops[i].rs2,dops[i].rt1); |
4242 | else if((smrv_weak>>dops[i].rs1)&1) speculate_mov_weak(dops[i].rs1,dops[i].rt1); |
4243 | else if((smrv_weak>>dops[i].rs2)&1) speculate_mov_weak(dops[i].rs2,dops[i].rt1); |
8062d65a |
4244 | else { |
cf95b4f0 |
4245 | smrv_strong_next&=~(1<<dops[i].rt1); |
4246 | smrv_weak_next&=~(1<<dops[i].rt1); |
8062d65a |
4247 | } |
4248 | break; |
4249 | case SHIFTIMM: |
cf95b4f0 |
4250 | smrv_strong_next&=~(1<<dops[i].rt1); |
4251 | smrv_weak_next&=~(1<<dops[i].rt1); |
8062d65a |
4252 | // fallthrough |
4253 | case IMM16: |
cf95b4f0 |
4254 | if(dops[i].rt1&&is_const(®s[i],dops[i].rt1)) { |
de6dbc52 |
4255 | int hr = get_reg_w(regs[i].regmap, dops[i].rt1); |
4256 | u_int value; |
8062d65a |
4257 | if(hr>=0) { |
4258 | if(get_final_value(hr,i,&value)) |
cf95b4f0 |
4259 | smrv[dops[i].rt1]=value; |
4260 | else smrv[dops[i].rt1]=constmap[i][hr]; |
4261 | smrv_strong_next|=1<<dops[i].rt1; |
8062d65a |
4262 | } |
4263 | } |
4264 | else { |
cf95b4f0 |
4265 | if ((smrv_strong>>dops[i].rs1)&1) speculate_mov(dops[i].rs1,dops[i].rt1); |
4266 | else if((smrv_weak>>dops[i].rs1)&1) speculate_mov_weak(dops[i].rs1,dops[i].rt1); |
8062d65a |
4267 | } |
4268 | break; |
4269 | case LOAD: |
cf95b4f0 |
4270 | if(start<0x2000&&(dops[i].rt1==26||(smrv[dops[i].rt1]>>24)==0xa0)) { |
8062d65a |
4271 | // special case for BIOS |
cf95b4f0 |
4272 | smrv[dops[i].rt1]=0xa0000000; |
4273 | smrv_strong_next|=1<<dops[i].rt1; |
8062d65a |
4274 | break; |
4275 | } |
4276 | // fallthrough |
4277 | case SHIFT: |
4278 | case LOADLR: |
4279 | case MOV: |
cf95b4f0 |
4280 | smrv_strong_next&=~(1<<dops[i].rt1); |
4281 | smrv_weak_next&=~(1<<dops[i].rt1); |
8062d65a |
4282 | break; |
4283 | case COP0: |
4284 | case COP2: |
cf95b4f0 |
4285 | if(dops[i].opcode2==0||dops[i].opcode2==2) { // MFC/CFC |
4286 | smrv_strong_next&=~(1<<dops[i].rt1); |
4287 | smrv_weak_next&=~(1<<dops[i].rt1); |
8062d65a |
4288 | } |
4289 | break; |
4290 | case C2LS: |
cf95b4f0 |
4291 | if (dops[i].opcode==0x32) { // LWC2 |
4292 | smrv_strong_next&=~(1<<dops[i].rt1); |
4293 | smrv_weak_next&=~(1<<dops[i].rt1); |
8062d65a |
4294 | } |
4295 | break; |
4296 | } |
4297 | #if 0 |
4298 | int r=4; |
4299 | printf("x %08x %08x %d %d c %08x %08x\n",smrv[r],start+i*4, |
4300 | ((smrv_strong>>r)&1),(smrv_weak>>r)&1,regs[i].isconst,regs[i].wasconst); |
4301 | #endif |
4302 | } |
4303 | |
2330734f |
4304 | static void ujump_assemble(int i, const struct regstat *i_regs); |
4305 | static void rjump_assemble(int i, const struct regstat *i_regs); |
4306 | static void cjump_assemble(int i, const struct regstat *i_regs); |
4307 | static void sjump_assemble(int i, const struct regstat *i_regs); |
2330734f |
4308 | |
4309 | static int assemble(int i, const struct regstat *i_regs, int ccadj_) |
57871462 |
4310 | { |
2330734f |
4311 | int ds = 0; |
4312 | switch (dops[i].itype) { |
57871462 |
4313 | case ALU: |
a5cd72d0 |
4314 | alu_assemble(i, i_regs, ccadj_); |
2330734f |
4315 | break; |
57871462 |
4316 | case IMM16: |
a5cd72d0 |
4317 | imm16_assemble(i, i_regs, ccadj_); |
2330734f |
4318 | break; |
57871462 |
4319 | case SHIFT: |
2330734f |
4320 | shift_assemble(i, i_regs); |
4321 | break; |
57871462 |
4322 | case SHIFTIMM: |
2330734f |
4323 | shiftimm_assemble(i, i_regs); |
4324 | break; |
57871462 |
4325 | case LOAD: |
2330734f |
4326 | load_assemble(i, i_regs, ccadj_); |
4327 | break; |
57871462 |
4328 | case LOADLR: |
2330734f |
4329 | loadlr_assemble(i, i_regs, ccadj_); |
4330 | break; |
57871462 |
4331 | case STORE: |
2330734f |
4332 | store_assemble(i, i_regs, ccadj_); |
4333 | break; |
57871462 |
4334 | case STORELR: |
2330734f |
4335 | storelr_assemble(i, i_regs, ccadj_); |
4336 | break; |
57871462 |
4337 | case COP0: |
2330734f |
4338 | cop0_assemble(i, i_regs, ccadj_); |
4339 | break; |
a5cd72d0 |
4340 | case RFE: |
277718fa |
4341 | rfe_assemble(i, i_regs); |
2330734f |
4342 | break; |
b9b61529 |
4343 | case COP2: |
2330734f |
4344 | cop2_assemble(i, i_regs); |
4345 | break; |
b9b61529 |
4346 | case C2LS: |
2330734f |
4347 | c2ls_assemble(i, i_regs, ccadj_); |
4348 | break; |
b9b61529 |
4349 | case C2OP: |
2330734f |
4350 | c2op_assemble(i, i_regs); |
4351 | break; |
57871462 |
4352 | case MULTDIV: |
2330734f |
4353 | multdiv_assemble(i, i_regs); |
4354 | multdiv_prepare_stall(i, i_regs, ccadj_); |
32631e6a |
4355 | break; |
57871462 |
4356 | case MOV: |
2330734f |
4357 | mov_assemble(i, i_regs); |
4358 | break; |
4359 | case SYSCALL: |
a5cd72d0 |
4360 | exception_assemble(i, i_regs, ccadj_); |
2330734f |
4361 | break; |
4362 | case HLECALL: |
4363 | hlecall_assemble(i, i_regs, ccadj_); |
4364 | break; |
4365 | case INTCALL: |
4366 | intcall_assemble(i, i_regs, ccadj_); |
4367 | break; |
4368 | case UJUMP: |
4369 | ujump_assemble(i, i_regs); |
4370 | ds = 1; |
4371 | break; |
4372 | case RJUMP: |
4373 | rjump_assemble(i, i_regs); |
4374 | ds = 1; |
4375 | break; |
4376 | case CJUMP: |
4377 | cjump_assemble(i, i_regs); |
4378 | ds = 1; |
4379 | break; |
4380 | case SJUMP: |
4381 | sjump_assemble(i, i_regs); |
4382 | ds = 1; |
4383 | break; |
24058131 |
4384 | case NOP: |
2330734f |
4385 | case OTHER: |
2330734f |
4386 | // not handled, just skip |
4387 | break; |
4388 | default: |
4389 | assert(0); |
4390 | } |
4391 | return ds; |
4392 | } |
4393 | |
4394 | static void ds_assemble(int i, const struct regstat *i_regs) |
4395 | { |
4396 | speculate_register_values(i); |
4397 | is_delayslot = 1; |
4398 | switch (dops[i].itype) { |
57871462 |
4399 | case SYSCALL: |
7139f3c8 |
4400 | case HLECALL: |
1e973cb0 |
4401 | case INTCALL: |
57871462 |
4402 | case UJUMP: |
4403 | case RJUMP: |
4404 | case CJUMP: |
4405 | case SJUMP: |
c43b5311 |
4406 | SysPrintf("Jump in the delay slot. This is probably a bug.\n"); |
2330734f |
4407 | break; |
4408 | default: |
277718fa |
4409 | assemble(i, i_regs, cinfo[i].ccadj); |
57871462 |
4410 | } |
2330734f |
4411 | is_delayslot = 0; |
57871462 |
4412 | } |
4413 | |
4414 | // Is the branch target a valid internal jump? |
ad49de89 |
4415 | static int internal_branch(int addr) |
57871462 |
4416 | { |
4417 | if(addr&1) return 0; // Indirect (register) jump |
4418 | if(addr>=start && addr<start+slen*4-4) |
4419 | { |
71e490c5 |
4420 | return 1; |
57871462 |
4421 | } |
4422 | return 0; |
4423 | } |
4424 | |
ad49de89 |
4425 | static void wb_invalidate(signed char pre[],signed char entry[],uint64_t dirty,uint64_t u) |
57871462 |
4426 | { |
4427 | int hr; |
4428 | for(hr=0;hr<HOST_REGS;hr++) { |
4429 | if(hr!=EXCLUDE_REG) { |
4430 | if(pre[hr]!=entry[hr]) { |
4431 | if(pre[hr]>=0) { |
4432 | if((dirty>>hr)&1) { |
4433 | if(get_reg(entry,pre[hr])<0) { |
00fa9369 |
4434 | assert(pre[hr]<64); |
4435 | if(!((u>>pre[hr])&1)) |
4436 | emit_storereg(pre[hr],hr); |
57871462 |
4437 | } |
4438 | } |
4439 | } |
4440 | } |
4441 | } |
4442 | } |
4443 | // Move from one register to another (no writeback) |
4444 | for(hr=0;hr<HOST_REGS;hr++) { |
4445 | if(hr!=EXCLUDE_REG) { |
4446 | if(pre[hr]!=entry[hr]) { |
9de8a0c3 |
4447 | if(pre[hr]>=0&&pre[hr]<TEMPREG) { |
57871462 |
4448 | int nr; |
4449 | if((nr=get_reg(entry,pre[hr]))>=0) { |
4450 | emit_mov(hr,nr); |
4451 | } |
4452 | } |
4453 | } |
4454 | } |
4455 | } |
4456 | } |
57871462 |
4457 | |
4458 | // Load the specified registers |
4459 | // This only loads the registers given as arguments because |
4460 | // we don't want to load things that will be overwritten |
53358c1d |
4461 | static inline void load_reg(signed char entry[], signed char regmap[], int rs) |
57871462 |
4462 | { |
53358c1d |
4463 | int hr = get_reg(regmap, rs); |
4464 | if (hr >= 0 && entry[hr] != regmap[hr]) |
4465 | emit_loadreg(regmap[hr], hr); |
4466 | } |
4467 | |
4468 | static void load_regs(signed char entry[], signed char regmap[], int rs1, int rs2) |
4469 | { |
4470 | load_reg(entry, regmap, rs1); |
4471 | if (rs1 != rs2) |
4472 | load_reg(entry, regmap, rs2); |
57871462 |
4473 | } |
4474 | |
4475 | // Load registers prior to the start of a loop |
4476 | // so that they are not loaded within the loop |
4477 | static void loop_preload(signed char pre[],signed char entry[]) |
4478 | { |
4479 | int hr; |
53358c1d |
4480 | for (hr = 0; hr < HOST_REGS; hr++) { |
4481 | int r = entry[hr]; |
4482 | if (r >= 0 && pre[hr] != r && get_reg(pre, r) < 0) { |
4483 | assem_debug("loop preload:\n"); |
4484 | if (r < TEMPREG) |
4485 | emit_loadreg(r, hr); |
57871462 |
4486 | } |
4487 | } |
4488 | } |
4489 | |
4490 | // Generate address for load/store instruction |
277718fa |
4491 | // goes to AGEN (or temp) for writes, FTEMP for LOADLR and cop1/2 loads |
4492 | // AGEN is assigned by pass5b_preallocate2 |
4149788d |
4493 | static void address_generation(int i, const struct regstat *i_regs, signed char entry[]) |
57871462 |
4494 | { |
37387d8b |
4495 | if (dops[i].is_load || dops[i].is_store) { |
277718fa |
4496 | int ra = -1; |
4497 | int agr = AGEN1 + (i&1); |
cf95b4f0 |
4498 | if(dops[i].itype==LOAD) { |
277718fa |
4499 | if (!dops[i].may_except) |
4500 | ra = get_reg_w(i_regs->regmap, dops[i].rt1); // reuse dest for agen |
4501 | if (ra < 0) |
4502 | ra = get_reg_temp(i_regs->regmap); |
57871462 |
4503 | } |
cf95b4f0 |
4504 | if(dops[i].itype==LOADLR) { |
57871462 |
4505 | ra=get_reg(i_regs->regmap,FTEMP); |
4506 | } |
cf95b4f0 |
4507 | if(dops[i].itype==STORE||dops[i].itype==STORELR) { |
57871462 |
4508 | ra=get_reg(i_regs->regmap,agr); |
9de8a0c3 |
4509 | if(ra<0) ra=get_reg_temp(i_regs->regmap); |
57871462 |
4510 | } |
37387d8b |
4511 | if(dops[i].itype==C2LS) { |
277718fa |
4512 | if (dops[i].opcode == 0x32) // LWC2 |
57871462 |
4513 | ra=get_reg(i_regs->regmap,FTEMP); |
277718fa |
4514 | else { // SWC2 |
57871462 |
4515 | ra=get_reg(i_regs->regmap,agr); |
9de8a0c3 |
4516 | if(ra<0) ra=get_reg_temp(i_regs->regmap); |
57871462 |
4517 | } |
4518 | } |
277718fa |
4519 | int rs = get_reg(i_regs->regmap, dops[i].rs1); |
4520 | //if(ra>=0) |
4521 | { |
4522 | int offset = cinfo[i].imm; |
4523 | int add_offset = offset != 0; |
33a1eda1 |
4524 | int c = rs >= 0 && ((i_regs->wasconst >> rs) & 1); |
cf95b4f0 |
4525 | if(dops[i].rs1==0) { |
57871462 |
4526 | // Using r0 as a base address |
277718fa |
4527 | assert(ra >= 0); |
57871462 |
4528 | if(!entry||entry[ra]!=agr) { |
cf95b4f0 |
4529 | if (dops[i].opcode==0x22||dops[i].opcode==0x26) { |
57871462 |
4530 | emit_movimm(offset&0xFFFFFFFC,ra); // LWL/LWR |
57871462 |
4531 | }else{ |
4532 | emit_movimm(offset,ra); |
4533 | } |
4534 | } // else did it in the previous cycle |
277718fa |
4535 | cinfo[i].addr = ra; |
4536 | add_offset = 0; |
4537 | } |
4538 | else if (rs < 0) { |
4539 | assert(ra >= 0); |
4540 | if (!entry || entry[ra] != dops[i].rs1) |
4541 | emit_loadreg(dops[i].rs1, ra); |
4542 | cinfo[i].addr = ra; |
cf95b4f0 |
4543 | //if(!entry||entry[ra]!=dops[i].rs1) |
57871462 |
4544 | // printf("poor load scheduling!\n"); |
4545 | } |
4546 | else if(c) { |
cf95b4f0 |
4547 | if(dops[i].rs1!=dops[i].rt1||dops[i].itype!=LOAD) { |
277718fa |
4548 | assert(ra >= 0); |
57871462 |
4549 | if(!entry||entry[ra]!=agr) { |
cf95b4f0 |
4550 | if (dops[i].opcode==0x22||dops[i].opcode==0x26) { |
57871462 |
4551 | emit_movimm((constmap[i][rs]+offset)&0xFFFFFFFC,ra); // LWL/LWR |
57871462 |
4552 | }else{ |
57871462 |
4553 | emit_movimm(constmap[i][rs]+offset,ra); |
8575a877 |
4554 | regs[i].loadedconst|=1<<ra; |
57871462 |
4555 | } |
4556 | } // else did it in the previous cycle |
277718fa |
4557 | cinfo[i].addr = ra; |
4558 | } |
4559 | else // else load_consts already did it |
4560 | cinfo[i].addr = rs; |
4561 | add_offset = 0; |
57871462 |
4562 | } |
277718fa |
4563 | else |
4564 | cinfo[i].addr = rs; |
4565 | if (add_offset) { |
4566 | assert(ra >= 0); |
57871462 |
4567 | if(rs>=0) { |
4568 | emit_addimm(rs,offset,ra); |
4569 | }else{ |
4570 | emit_addimm(ra,offset,ra); |
4571 | } |
277718fa |
4572 | cinfo[i].addr = ra; |
57871462 |
4573 | } |
4574 | } |
277718fa |
4575 | assert(cinfo[i].addr >= 0); |
57871462 |
4576 | } |
4577 | // Preload constants for next instruction |
37387d8b |
4578 | if (dops[i+1].is_load || dops[i+1].is_store) { |
57871462 |
4579 | int agr,ra; |
57871462 |
4580 | // Actual address |
4581 | agr=AGEN1+((i+1)&1); |
4582 | ra=get_reg(i_regs->regmap,agr); |
4583 | if(ra>=0) { |
cf95b4f0 |
4584 | int rs=get_reg(regs[i+1].regmap,dops[i+1].rs1); |
277718fa |
4585 | int offset=cinfo[i+1].imm; |
57871462 |
4586 | int c=(regs[i+1].wasconst>>rs)&1; |
cf95b4f0 |
4587 | if(c&&(dops[i+1].rs1!=dops[i+1].rt1||dops[i+1].itype!=LOAD)) { |
4588 | if (dops[i+1].opcode==0x22||dops[i+1].opcode==0x26) { |
57871462 |
4589 | emit_movimm((constmap[i+1][rs]+offset)&0xFFFFFFFC,ra); // LWL/LWR |
cf95b4f0 |
4590 | }else if (dops[i+1].opcode==0x1a||dops[i+1].opcode==0x1b) { |
57871462 |
4591 | emit_movimm((constmap[i+1][rs]+offset)&0xFFFFFFF8,ra); // LDL/LDR |
4592 | }else{ |
57871462 |
4593 | emit_movimm(constmap[i+1][rs]+offset,ra); |
8575a877 |
4594 | regs[i+1].loadedconst|=1<<ra; |
57871462 |
4595 | } |
4596 | } |
cf95b4f0 |
4597 | else if(dops[i+1].rs1==0) { |
57871462 |
4598 | // Using r0 as a base address |
cf95b4f0 |
4599 | if (dops[i+1].opcode==0x22||dops[i+1].opcode==0x26) { |
57871462 |
4600 | emit_movimm(offset&0xFFFFFFFC,ra); // LWL/LWR |
cf95b4f0 |
4601 | }else if (dops[i+1].opcode==0x1a||dops[i+1].opcode==0x1b) { |
57871462 |
4602 | emit_movimm(offset&0xFFFFFFF8,ra); // LDL/LDR |
4603 | }else{ |
4604 | emit_movimm(offset,ra); |
4605 | } |
4606 | } |
4607 | } |
4608 | } |
4609 | } |
4610 | |
de6dbc52 |
4611 | static int get_final_value(int hr, int i, u_int *value) |
57871462 |
4612 | { |
4613 | int reg=regs[i].regmap[hr]; |
4614 | while(i<slen-1) { |
4615 | if(regs[i+1].regmap[hr]!=reg) break; |
4616 | if(!((regs[i+1].isconst>>hr)&1)) break; |
cf95b4f0 |
4617 | if(dops[i+1].bt) break; |
57871462 |
4618 | i++; |
4619 | } |
4620 | if(i<slen-1) { |
fe807a8a |
4621 | if (dops[i].is_jump) { |
57871462 |
4622 | *value=constmap[i][hr]; |
4623 | return 1; |
4624 | } |
cf95b4f0 |
4625 | if(!dops[i+1].bt) { |
fe807a8a |
4626 | if (dops[i+1].is_jump) { |
57871462 |
4627 | // Load in delay slot, out-of-order execution |
cf95b4f0 |
4628 | if(dops[i+2].itype==LOAD&&dops[i+2].rs1==reg&&dops[i+2].rt1==reg&&((regs[i+1].wasconst>>hr)&1)) |
57871462 |
4629 | { |
57871462 |
4630 | // Precompute load address |
277718fa |
4631 | *value=constmap[i][hr]+cinfo[i+2].imm; |
57871462 |
4632 | return 1; |
4633 | } |
4634 | } |
cf95b4f0 |
4635 | if(dops[i+1].itype==LOAD&&dops[i+1].rs1==reg&&dops[i+1].rt1==reg) |
57871462 |
4636 | { |
57871462 |
4637 | // Precompute load address |
277718fa |
4638 | *value=constmap[i][hr]+cinfo[i+1].imm; |
4639 | //printf("c=%x imm=%lx\n",(long)constmap[i][hr],cinfo[i+1].imm); |
57871462 |
4640 | return 1; |
4641 | } |
4642 | } |
4643 | } |
4644 | *value=constmap[i][hr]; |
643aeae3 |
4645 | //printf("c=%lx\n",(long)constmap[i][hr]); |
57871462 |
4646 | if(i==slen-1) return 1; |
00fa9369 |
4647 | assert(reg < 64); |
4648 | return !((unneeded_reg[i+1]>>reg)&1); |
57871462 |
4649 | } |
4650 | |
4651 | // Load registers with known constants |
ad49de89 |
4652 | static void load_consts(signed char pre[],signed char regmap[],int i) |
57871462 |
4653 | { |
8575a877 |
4654 | int hr,hr2; |
4655 | // propagate loaded constant flags |
cf95b4f0 |
4656 | if(i==0||dops[i].bt) |
8575a877 |
4657 | regs[i].loadedconst=0; |
4658 | else { |
684b6816 |
4659 | for (hr = 0; hr < HOST_REGS; hr++) { |
4660 | if (hr == EXCLUDE_REG || regmap[hr] < 0 || pre[hr] != regmap[hr]) |
4661 | continue; |
4662 | if ((((regs[i-1].isconst & regs[i-1].loadedconst) >> hr) & 1) |
4663 | && regmap[hr] == regs[i-1].regmap[hr]) |
8575a877 |
4664 | { |
684b6816 |
4665 | regs[i].loadedconst |= 1u << hr; |
8575a877 |
4666 | } |
4667 | } |
4668 | } |
57871462 |
4669 | // Load 32-bit regs |
4670 | for(hr=0;hr<HOST_REGS;hr++) { |
4671 | if(hr!=EXCLUDE_REG&®map[hr]>=0) { |
4672 | //if(entry[hr]!=regmap[hr]) { |
8575a877 |
4673 | if(!((regs[i].loadedconst>>hr)&1)) { |
ad49de89 |
4674 | assert(regmap[hr]<64); |
4675 | if(((regs[i].isconst>>hr)&1)&®map[hr]>0) { |
de6dbc52 |
4676 | u_int value, similar=0; |
57871462 |
4677 | if(get_final_value(hr,i,&value)) { |
8575a877 |
4678 | // see if some other register has similar value |
4679 | for(hr2=0;hr2<HOST_REGS;hr2++) { |
4680 | if(hr2!=EXCLUDE_REG&&((regs[i].loadedconst>>hr2)&1)) { |
4681 | if(is_similar_value(value,constmap[i][hr2])) { |
4682 | similar=1; |
4683 | break; |
4684 | } |
4685 | } |
4686 | } |
4687 | if(similar) { |
de6dbc52 |
4688 | u_int value2; |
8575a877 |
4689 | if(get_final_value(hr2,i,&value2)) // is this needed? |
4690 | emit_movimm_from(value2,hr2,value,hr); |
4691 | else |
4692 | emit_movimm(value,hr); |
4693 | } |
4694 | else if(value==0) { |
57871462 |
4695 | emit_zeroreg(hr); |
4696 | } |
4697 | else { |
4698 | emit_movimm(value,hr); |
4699 | } |
4700 | } |
8575a877 |
4701 | regs[i].loadedconst|=1<<hr; |
57871462 |
4702 | } |
4703 | } |
4704 | } |
4705 | } |
57871462 |
4706 | } |
ad49de89 |
4707 | |
2330734f |
4708 | static void load_all_consts(const signed char regmap[], u_int dirty, int i) |
57871462 |
4709 | { |
4710 | int hr; |
4711 | // Load 32-bit regs |
4712 | for(hr=0;hr<HOST_REGS;hr++) { |
4713 | if(hr!=EXCLUDE_REG&®map[hr]>=0&&((dirty>>hr)&1)) { |
ad49de89 |
4714 | assert(regmap[hr] < 64); |
4715 | if(((regs[i].isconst>>hr)&1)&®map[hr]>0) { |
57871462 |
4716 | int value=constmap[i][hr]; |
4717 | if(value==0) { |
4718 | emit_zeroreg(hr); |
4719 | } |
4720 | else { |
4721 | emit_movimm(value,hr); |
4722 | } |
4723 | } |
4724 | } |
4725 | } |
57871462 |
4726 | } |
4727 | |
4728 | // Write out all dirty registers (except cycle count) |
a22ccd6a |
4729 | #ifndef wb_dirtys |
4730 | static void wb_dirtys(const signed char i_regmap[], u_int i_dirty) |
57871462 |
4731 | { |
4732 | int hr; |
4733 | for(hr=0;hr<HOST_REGS;hr++) { |
4734 | if(hr!=EXCLUDE_REG) { |
4735 | if(i_regmap[hr]>0) { |
4736 | if(i_regmap[hr]!=CCREG) { |
4737 | if((i_dirty>>hr)&1) { |
00fa9369 |
4738 | assert(i_regmap[hr]<64); |
4739 | emit_storereg(i_regmap[hr],hr); |
57871462 |
4740 | } |
4741 | } |
4742 | } |
4743 | } |
4744 | } |
4745 | } |
a22ccd6a |
4746 | #endif |
ad49de89 |
4747 | |
57871462 |
4748 | // Write out dirty registers that we need to reload (pair with load_needed_regs) |
4749 | // This writes the registers not written by store_regs_bt |
a22ccd6a |
4750 | static void wb_needed_dirtys(const signed char i_regmap[], u_int i_dirty, int addr) |
57871462 |
4751 | { |
4752 | int hr; |
4753 | int t=(addr-start)>>2; |
4754 | for(hr=0;hr<HOST_REGS;hr++) { |
4755 | if(hr!=EXCLUDE_REG) { |
4756 | if(i_regmap[hr]>0) { |
4757 | if(i_regmap[hr]!=CCREG) { |
ad49de89 |
4758 | if(i_regmap[hr]==regs[t].regmap_entry[hr] && ((regs[t].dirty>>hr)&1)) { |
57871462 |
4759 | if((i_dirty>>hr)&1) { |
00fa9369 |
4760 | assert(i_regmap[hr]<64); |
4761 | emit_storereg(i_regmap[hr],hr); |
57871462 |
4762 | } |
4763 | } |
4764 | } |
4765 | } |
4766 | } |
4767 | } |
4768 | } |
4769 | |
4770 | // Load all registers (except cycle count) |
a22ccd6a |
4771 | #ifndef load_all_regs |
2330734f |
4772 | static void load_all_regs(const signed char i_regmap[]) |
57871462 |
4773 | { |
4774 | int hr; |
4775 | for(hr=0;hr<HOST_REGS;hr++) { |
4776 | if(hr!=EXCLUDE_REG) { |
4777 | if(i_regmap[hr]==0) { |
4778 | emit_zeroreg(hr); |
4779 | } |
4780 | else |
9de8a0c3 |
4781 | if(i_regmap[hr]>0 && i_regmap[hr]<TEMPREG && i_regmap[hr]!=CCREG) |
57871462 |
4782 | { |
4783 | emit_loadreg(i_regmap[hr],hr); |
4784 | } |
4785 | } |
4786 | } |
4787 | } |
a22ccd6a |
4788 | #endif |
57871462 |
4789 | |
4790 | // Load all current registers also needed by next instruction |
2330734f |
4791 | static void load_needed_regs(const signed char i_regmap[], const signed char next_regmap[]) |
57871462 |
4792 | { |
a22ccd6a |
4793 | signed char regmap_sel[HOST_REGS]; |
57871462 |
4794 | int hr; |
a22ccd6a |
4795 | for (hr = 0; hr < HOST_REGS; hr++) { |
4796 | regmap_sel[hr] = -1; |
4797 | if (hr != EXCLUDE_REG) |
4798 | if (next_regmap[hr] == i_regmap[hr] || get_reg(next_regmap, i_regmap[hr]) >= 0) |
4799 | regmap_sel[hr] = i_regmap[hr]; |
57871462 |
4800 | } |
a22ccd6a |
4801 | load_all_regs(regmap_sel); |
57871462 |
4802 | } |
4803 | |
4804 | // Load all regs, storing cycle count if necessary |
2330734f |
4805 | static void load_regs_entry(int t) |
57871462 |
4806 | { |
cf95b4f0 |
4807 | if(dops[t].is_ds) emit_addimm(HOST_CCREG,CLOCK_ADJUST(1),HOST_CCREG); |
277718fa |
4808 | else if(cinfo[t].ccadj) emit_addimm(HOST_CCREG,-cinfo[t].ccadj,HOST_CCREG); |
57871462 |
4809 | if(regs[t].regmap_entry[HOST_CCREG]!=CCREG) { |
4810 | emit_storereg(CCREG,HOST_CCREG); |
4811 | } |
a22ccd6a |
4812 | load_all_regs(regs[t].regmap_entry); |
57871462 |
4813 | } |
4814 | |
4815 | // Store dirty registers prior to branch |
4149788d |
4816 | static void store_regs_bt(signed char i_regmap[],uint64_t i_dirty,int addr) |
57871462 |
4817 | { |
ad49de89 |
4818 | if(internal_branch(addr)) |
57871462 |
4819 | { |
4820 | int t=(addr-start)>>2; |
4821 | int hr; |
4822 | for(hr=0;hr<HOST_REGS;hr++) { |
4823 | if(hr!=EXCLUDE_REG) { |
4824 | if(i_regmap[hr]>0 && i_regmap[hr]!=CCREG) { |
ad49de89 |
4825 | if(i_regmap[hr]!=regs[t].regmap_entry[hr] || !((regs[t].dirty>>hr)&1)) { |
57871462 |
4826 | if((i_dirty>>hr)&1) { |
00fa9369 |
4827 | assert(i_regmap[hr]<64); |
4828 | if(!((unneeded_reg[t]>>i_regmap[hr])&1)) |
4829 | emit_storereg(i_regmap[hr],hr); |
57871462 |
4830 | } |
4831 | } |
4832 | } |
4833 | } |
4834 | } |
4835 | } |
4836 | else |
4837 | { |
4838 | // Branch out of this block, write out all dirty regs |
ad49de89 |
4839 | wb_dirtys(i_regmap,i_dirty); |
57871462 |
4840 | } |
4841 | } |
4842 | |
4843 | // Load all needed registers for branch target |
ad49de89 |
4844 | static void load_regs_bt(signed char i_regmap[],uint64_t i_dirty,int addr) |
57871462 |
4845 | { |
4846 | //if(addr>=start && addr<(start+slen*4)) |
ad49de89 |
4847 | if(internal_branch(addr)) |
57871462 |
4848 | { |
4849 | int t=(addr-start)>>2; |
4850 | int hr; |
4851 | // Store the cycle count before loading something else |
4852 | if(i_regmap[HOST_CCREG]!=CCREG) { |
4853 | assert(i_regmap[HOST_CCREG]==-1); |
4854 | } |
4855 | if(regs[t].regmap_entry[HOST_CCREG]!=CCREG) { |
4856 | emit_storereg(CCREG,HOST_CCREG); |
4857 | } |
4858 | // Load 32-bit regs |
4859 | for(hr=0;hr<HOST_REGS;hr++) { |
ea3d2e6e |
4860 | if(hr!=EXCLUDE_REG&®s[t].regmap_entry[hr]>=0&®s[t].regmap_entry[hr]<TEMPREG) { |
00fa9369 |
4861 | if(i_regmap[hr]!=regs[t].regmap_entry[hr]) { |
57871462 |
4862 | if(regs[t].regmap_entry[hr]==0) { |
4863 | emit_zeroreg(hr); |
4864 | } |
4865 | else if(regs[t].regmap_entry[hr]!=CCREG) |
4866 | { |
4867 | emit_loadreg(regs[t].regmap_entry[hr],hr); |
4868 | } |
4869 | } |
4870 | } |
4871 | } |
57871462 |
4872 | } |
4873 | } |
4874 | |
ad49de89 |
4875 | static int match_bt(signed char i_regmap[],uint64_t i_dirty,int addr) |
57871462 |
4876 | { |
4877 | if(addr>=start && addr<start+slen*4-4) |
4878 | { |
4879 | int t=(addr-start)>>2; |
4880 | int hr; |
4881 | if(regs[t].regmap_entry[HOST_CCREG]!=CCREG) return 0; |
4882 | for(hr=0;hr<HOST_REGS;hr++) |
4883 | { |
4884 | if(hr!=EXCLUDE_REG) |
4885 | { |
4886 | if(i_regmap[hr]!=regs[t].regmap_entry[hr]) |
4887 | { |
ea3d2e6e |
4888 | if(regs[t].regmap_entry[hr]>=0&&(regs[t].regmap_entry[hr]|64)<TEMPREG+64) |
57871462 |
4889 | { |
4890 | return 0; |
4891 | } |
9f51b4b9 |
4892 | else |
57871462 |
4893 | if((i_dirty>>hr)&1) |
4894 | { |
ea3d2e6e |
4895 | if(i_regmap[hr]<TEMPREG) |
57871462 |
4896 | { |
4897 | if(!((unneeded_reg[t]>>i_regmap[hr])&1)) |
4898 | return 0; |
4899 | } |
ea3d2e6e |
4900 | else if(i_regmap[hr]>=64&&i_regmap[hr]<TEMPREG+64) |
57871462 |
4901 | { |
00fa9369 |
4902 | assert(0); |
57871462 |
4903 | } |
4904 | } |
4905 | } |
4906 | else // Same register but is it 32-bit or dirty? |
4907 | if(i_regmap[hr]>=0) |
4908 | { |
4909 | if(!((regs[t].dirty>>hr)&1)) |
4910 | { |
4911 | if((i_dirty>>hr)&1) |
4912 | { |
4913 | if(!((unneeded_reg[t]>>i_regmap[hr])&1)) |
4914 | { |
4915 | //printf("%x: dirty no match\n",addr); |
4916 | return 0; |
4917 | } |
4918 | } |
4919 | } |
57871462 |
4920 | } |
4921 | } |
4922 | } |
57871462 |
4923 | // Delay slots are not valid branch targets |
fe807a8a |
4924 | //if(t>0&&(dops[t-1].is_jump) return 0; |
57871462 |
4925 | // Delay slots require additional processing, so do not match |
cf95b4f0 |
4926 | if(dops[t].is_ds) return 0; |
57871462 |
4927 | } |
4928 | else |
4929 | { |
4930 | int hr; |
4931 | for(hr=0;hr<HOST_REGS;hr++) |
4932 | { |
4933 | if(hr!=EXCLUDE_REG) |
4934 | { |
4935 | if(i_regmap[hr]>=0) |
4936 | { |
4937 | if(hr!=HOST_CCREG||i_regmap[hr]!=CCREG) |
4938 | { |
4939 | if((i_dirty>>hr)&1) |
4940 | { |
4941 | return 0; |
4942 | } |
4943 | } |
4944 | } |
4945 | } |
4946 | } |
4947 | } |
4948 | return 1; |
4949 | } |
4950 | |
dd114d7d |
4951 | #ifdef DRC_DBG |
2330734f |
4952 | static void drc_dbg_emit_do_cmp(int i, int ccadj_) |
dd114d7d |
4953 | { |
4954 | extern void do_insn_cmp(); |
3968e69e |
4955 | //extern int cycle; |
81dbbf4c |
4956 | u_int hr, reglist = get_host_reglist(regs[i].regmap); |
33a1eda1 |
4957 | reglist |= get_host_reglist(regs[i].regmap_entry); |
4958 | reglist &= DRC_DBG_REGMASK; |
dd114d7d |
4959 | |
40fca85b |
4960 | assem_debug("//do_insn_cmp %08x\n", start+i*4); |
dd114d7d |
4961 | save_regs(reglist); |
40fca85b |
4962 | // write out changed consts to match the interpreter |
cf95b4f0 |
4963 | if (i > 0 && !dops[i].bt) { |
40fca85b |
4964 | for (hr = 0; hr < HOST_REGS; hr++) { |
2330734f |
4965 | int reg = regs[i].regmap_entry[hr]; // regs[i-1].regmap[hr]; |
277718fa |
4966 | if (hr == EXCLUDE_REG || reg <= 0) |
40fca85b |
4967 | continue; |
4968 | if (!((regs[i-1].isconst >> hr) & 1)) |
4969 | continue; |
4970 | if (i > 1 && reg == regs[i-2].regmap[hr] && constmap[i-1][hr] == constmap[i-2][hr]) |
4971 | continue; |
4972 | emit_movimm(constmap[i-1][hr],0); |
4973 | emit_storereg(reg, 0); |
4974 | } |
4975 | } |
4f13a577 |
4976 | if (dops[i].opcode == 0x0f) { // LUI |
4977 | emit_movimm(cinfo[i].imm << 16, 0); |
4978 | emit_storereg(dops[i].rt1, 0); |
4979 | } |
dd114d7d |
4980 | emit_movimm(start+i*4,0); |
643aeae3 |
4981 | emit_writeword(0,&pcaddr); |
2330734f |
4982 | int cc = get_reg(regs[i].regmap_entry, CCREG); |
4983 | if (cc < 0) |
4984 | emit_loadreg(CCREG, cc = 0); |
4985 | emit_addimm(cc, ccadj_, 0); |
4986 | emit_writeword(0, &psxRegs.cycle); |
2a014d73 |
4987 | emit_far_call(do_insn_cmp); |
643aeae3 |
4988 | //emit_readword(&cycle,0); |
dd114d7d |
4989 | //emit_addimm(0,2,0); |
643aeae3 |
4990 | //emit_writeword(0,&cycle); |
3968e69e |
4991 | (void)get_reg2; |
dd114d7d |
4992 | restore_regs(reglist); |
40fca85b |
4993 | assem_debug("\\\\do_insn_cmp\n"); |
dd114d7d |
4994 | } |
4f13a577 |
4995 | static void drc_dbg_emit_wb_dirtys(int i, const struct regstat *i_regs) |
4996 | { |
4997 | // write-out non-consts, consts are likely different because of get_final_value() |
4998 | if (i_regs->dirty & ~i_regs->loadedconst) { |
4999 | assem_debug("/ drc_dbg_wb\n"); |
5000 | wb_dirtys(i_regs->regmap, i_regs->dirty & ~i_regs->loadedconst); |
5001 | assem_debug("\\ drc_dbg_wb\n"); |
5002 | } |
5003 | } |
dd114d7d |
5004 | #else |
2330734f |
5005 | #define drc_dbg_emit_do_cmp(x,y) |
4f13a577 |
5006 | #define drc_dbg_emit_wb_dirtys(x,y) |
dd114d7d |
5007 | #endif |
5008 | |
57871462 |
5009 | // Used when a branch jumps into the delay slot of another branch |
7c3a5182 |
5010 | static void ds_assemble_entry(int i) |
57871462 |
5011 | { |
277718fa |
5012 | int t = (cinfo[i].ba - start) >> 2; |
2330734f |
5013 | int ccadj_ = -CLOCK_ADJUST(1); |
df4dc2b1 |
5014 | if (!instr_addr[t]) |
5015 | instr_addr[t] = out; |
277718fa |
5016 | assem_debug("Assemble delay slot at %x\n",cinfo[i].ba); |
57871462 |
5017 | assem_debug("<->\n"); |
2330734f |
5018 | drc_dbg_emit_do_cmp(t, ccadj_); |
57871462 |
5019 | if(regs[t].regmap_entry[HOST_CCREG]==CCREG&®s[t].regmap[HOST_CCREG]!=CCREG) |
ad49de89 |
5020 | wb_register(CCREG,regs[t].regmap_entry,regs[t].wasdirty); |
cf95b4f0 |
5021 | load_regs(regs[t].regmap_entry,regs[t].regmap,dops[t].rs1,dops[t].rs2); |
57871462 |
5022 | address_generation(t,®s[t],regs[t].regmap_entry); |
37387d8b |
5023 | if (ram_offset && (dops[t].is_load || dops[t].is_store)) |
53358c1d |
5024 | load_reg(regs[t].regmap_entry,regs[t].regmap,ROREG); |
37387d8b |
5025 | if (dops[t].is_store) |
53358c1d |
5026 | load_reg(regs[t].regmap_entry,regs[t].regmap,INVCP); |
57871462 |
5027 | is_delayslot=0; |
2330734f |
5028 | switch (dops[t].itype) { |
57871462 |
5029 | case SYSCALL: |
7139f3c8 |
5030 | case HLECALL: |
1e973cb0 |
5031 | case INTCALL: |
57871462 |
5032 | case UJUMP: |
5033 | case RJUMP: |
5034 | case CJUMP: |
5035 | case SJUMP: |
c43b5311 |
5036 | SysPrintf("Jump in the delay slot. This is probably a bug.\n"); |
2330734f |
5037 | break; |
5038 | default: |
5039 | assemble(t, ®s[t], ccadj_); |
57871462 |
5040 | } |
277718fa |
5041 | store_regs_bt(regs[t].regmap,regs[t].dirty,cinfo[i].ba+4); |
5042 | load_regs_bt(regs[t].regmap,regs[t].dirty,cinfo[i].ba+4); |
5043 | if(internal_branch(cinfo[i].ba+4)) |
57871462 |
5044 | assem_debug("branch: internal\n"); |
5045 | else |
5046 | assem_debug("branch: external\n"); |
277718fa |
5047 | assert(internal_branch(cinfo[i].ba+4)); |
5048 | add_to_linker(out,cinfo[i].ba+4,internal_branch(cinfo[i].ba+4)); |
57871462 |
5049 | emit_jmp(0); |
5050 | } |
5051 | |
d1e4ebd9 |
5052 | // Load 2 immediates optimizing for small code size |
5053 | static void emit_mov2imm_compact(int imm1,u_int rt1,int imm2,u_int rt2) |
5054 | { |
5055 | emit_movimm(imm1,rt1); |
5056 | emit_movimm_from(imm1,rt1,imm2,rt2); |
5057 | } |
5058 | |
2330734f |
5059 | static void do_cc(int i, const signed char i_regmap[], int *adj, |
5060 | int addr, int taken, int invert) |
57871462 |
5061 | { |
2330734f |
5062 | int count, count_plus2; |
b14b6a8f |
5063 | void *jaddr; |
5064 | void *idle=NULL; |
b6e87b2b |
5065 | int t=0; |
cf95b4f0 |
5066 | if(dops[i].itype==RJUMP) |
57871462 |
5067 | { |
5068 | *adj=0; |
5069 | } |
277718fa |
5070 | //if(cinfo[i].ba>=start && cinfo[i].ba<(start+slen*4)) |
5071 | if(internal_branch(cinfo[i].ba)) |
57871462 |
5072 | { |
277718fa |
5073 | t=(cinfo[i].ba-start)>>2; |
2330734f |
5074 | if(dops[t].is_ds) *adj=-CLOCK_ADJUST(1); // Branch into delay slot adds an extra cycle |
277718fa |
5075 | else *adj=cinfo[t].ccadj; |
57871462 |
5076 | } |
5077 | else |
5078 | { |
5079 | *adj=0; |
5080 | } |
277718fa |
5081 | count = cinfo[i].ccadj; |
2330734f |
5082 | count_plus2 = count + CLOCK_ADJUST(2); |
277718fa |
5083 | if(taken==TAKEN && i==(cinfo[i].ba-start)>>2 && source[i+1]==0) { |
57871462 |
5084 | // Idle loop |
5085 | if(count&1) emit_addimm_and_set_flags(2*(count+2),HOST_CCREG); |
b14b6a8f |
5086 | idle=out; |
57871462 |
5087 | //emit_subfrommem(&idlecount,HOST_CCREG); // Count idle cycles |
5088 | emit_andimm(HOST_CCREG,3,HOST_CCREG); |
b14b6a8f |
5089 | jaddr=out; |
57871462 |
5090 | emit_jmp(0); |
5091 | } |
5092 | else if(*adj==0||invert) { |
2330734f |
5093 | int cycles = count_plus2; |
b6e87b2b |
5094 | // faster loop HACK |
bb4f300c |
5095 | #if 0 |
b6e87b2b |
5096 | if (t&&*adj) { |
5097 | int rel=t-i; |
5098 | if(-NO_CYCLE_PENALTY_THR<rel&&rel<0) |
2330734f |
5099 | cycles=*adj+count+2-*adj; |
b6e87b2b |
5100 | } |
bb4f300c |
5101 | #endif |
2330734f |
5102 | emit_addimm_and_set_flags(cycles, HOST_CCREG); |
5103 | jaddr = out; |
57871462 |
5104 | emit_jns(0); |
5105 | } |
5106 | else |
5107 | { |
2330734f |
5108 | emit_cmpimm(HOST_CCREG, -count_plus2); |
5109 | jaddr = out; |
57871462 |
5110 | emit_jns(0); |
5111 | } |
2330734f |
5112 | add_stub(CC_STUB,jaddr,idle?idle:out,(*adj==0||invert||idle)?0:count_plus2,i,addr,taken,0); |
57871462 |
5113 | } |
5114 | |
b14b6a8f |
5115 | static void do_ccstub(int n) |
57871462 |
5116 | { |
5117 | literal_pool(256); |
d1e4ebd9 |
5118 | assem_debug("do_ccstub %x\n",start+(u_int)stubs[n].b*4); |
b14b6a8f |
5119 | set_jump_target(stubs[n].addr, out); |
5120 | int i=stubs[n].b; |
33a1eda1 |
5121 | if (stubs[n].d != TAKEN) { |
ad49de89 |
5122 | wb_dirtys(branch_regs[i].regmap,branch_regs[i].dirty); |
57871462 |
5123 | } |
5124 | else { |
277718fa |
5125 | if(internal_branch(cinfo[i].ba)) |
5126 | wb_needed_dirtys(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba); |
57871462 |
5127 | } |
b14b6a8f |
5128 | if(stubs[n].c!=-1) |
57871462 |
5129 | { |
5130 | // Save PC as return address |
6d75addf |
5131 | emit_movimm(stubs[n].c,0); |
5132 | emit_writeword(0,&pcaddr); |
57871462 |
5133 | } |
5134 | else |
5135 | { |
5136 | // Return address depends on which way the branch goes |
cf95b4f0 |
5137 | if(dops[i].itype==CJUMP||dops[i].itype==SJUMP) |
57871462 |
5138 | { |
cf95b4f0 |
5139 | int s1l=get_reg(branch_regs[i].regmap,dops[i].rs1); |
5140 | int s2l=get_reg(branch_regs[i].regmap,dops[i].rs2); |
5141 | if(dops[i].rs1==0) |
57871462 |
5142 | { |
ad49de89 |
5143 | s1l=s2l; |
5144 | s2l=-1; |
57871462 |
5145 | } |
cf95b4f0 |
5146 | else if(dops[i].rs2==0) |
57871462 |
5147 | { |
ad49de89 |
5148 | s2l=-1; |
57871462 |
5149 | } |
5150 | assert(s1l>=0); |
5151 | #ifdef DESTRUCTIVE_WRITEBACK |
cf95b4f0 |
5152 | if(dops[i].rs1) { |
ad49de89 |
5153 | if((branch_regs[i].dirty>>s1l)&&1) |
cf95b4f0 |
5154 | emit_loadreg(dops[i].rs1,s1l); |
9f51b4b9 |
5155 | } |
57871462 |
5156 | else { |
ad49de89 |
5157 | if((branch_regs[i].dirty>>s1l)&1) |
cf95b4f0 |
5158 | emit_loadreg(dops[i].rs2,s1l); |
57871462 |
5159 | } |
5160 | if(s2l>=0) |
ad49de89 |
5161 | if((branch_regs[i].dirty>>s2l)&1) |
cf95b4f0 |
5162 | emit_loadreg(dops[i].rs2,s2l); |
57871462 |
5163 | #endif |
5164 | int hr=0; |
5194fb95 |
5165 | int addr=-1,alt=-1,ntaddr=-1; |
57871462 |
5166 | while(hr<HOST_REGS) |
5167 | { |
5168 | if(hr!=EXCLUDE_REG && hr!=HOST_CCREG && |
9de8a0c3 |
5169 | branch_regs[i].regmap[hr]!=dops[i].rs1 && |
5170 | branch_regs[i].regmap[hr]!=dops[i].rs2 ) |
57871462 |
5171 | { |
5172 | addr=hr++;break; |
5173 | } |
5174 | hr++; |
5175 | } |
5176 | while(hr<HOST_REGS) |
5177 | { |
5178 | if(hr!=EXCLUDE_REG && hr!=HOST_CCREG && |
9de8a0c3 |
5179 | branch_regs[i].regmap[hr]!=dops[i].rs1 && |
5180 | branch_regs[i].regmap[hr]!=dops[i].rs2 ) |
57871462 |
5181 | { |
5182 | alt=hr++;break; |
5183 | } |
5184 | hr++; |
5185 | } |
ecca05e3 |
5186 | if ((dops[i].opcode & 0x3e) == 6) // BLEZ/BGTZ needs another register |
57871462 |
5187 | { |
5188 | while(hr<HOST_REGS) |
5189 | { |
5190 | if(hr!=EXCLUDE_REG && hr!=HOST_CCREG && |
9de8a0c3 |
5191 | branch_regs[i].regmap[hr]!=dops[i].rs1 && |
5192 | branch_regs[i].regmap[hr]!=dops[i].rs2 ) |
57871462 |
5193 | { |
5194 | ntaddr=hr;break; |
5195 | } |
5196 | hr++; |
5197 | } |
5198 | assert(hr<HOST_REGS); |
5199 | } |
ecca05e3 |
5200 | if (dops[i].opcode == 4) // BEQ |
57871462 |
5201 | { |
5202 | #ifdef HAVE_CMOV_IMM |
ad49de89 |
5203 | if(s2l>=0) emit_cmp(s1l,s2l); |
5204 | else emit_test(s1l,s1l); |
277718fa |
5205 | emit_cmov2imm_e_ne_compact(cinfo[i].ba,start+i*4+8,addr); |
ad49de89 |
5206 | #else |
277718fa |
5207 | emit_mov2imm_compact(cinfo[i].ba,addr,start+i*4+8,alt); |
ad49de89 |
5208 | if(s2l>=0) emit_cmp(s1l,s2l); |
5209 | else emit_test(s1l,s1l); |
5210 | emit_cmovne_reg(alt,addr); |
57871462 |
5211 | #endif |
57871462 |
5212 | } |
ecca05e3 |
5213 | else if (dops[i].opcode == 5) // BNE |
57871462 |
5214 | { |
5215 | #ifdef HAVE_CMOV_IMM |
ad49de89 |
5216 | if(s2l>=0) emit_cmp(s1l,s2l); |
5217 | else emit_test(s1l,s1l); |
277718fa |
5218 | emit_cmov2imm_e_ne_compact(start+i*4+8,cinfo[i].ba,addr); |
ad49de89 |
5219 | #else |
277718fa |
5220 | emit_mov2imm_compact(start+i*4+8,addr,cinfo[i].ba,alt); |
ad49de89 |
5221 | if(s2l>=0) emit_cmp(s1l,s2l); |
5222 | else emit_test(s1l,s1l); |
5223 | emit_cmovne_reg(alt,addr); |
57871462 |
5224 | #endif |
57871462 |
5225 | } |
ecca05e3 |
5226 | else if (dops[i].opcode == 6) // BLEZ |
57871462 |
5227 | { |
277718fa |
5228 | //emit_movimm(cinfo[i].ba,alt); |
57871462 |
5229 | //emit_movimm(start+i*4+8,addr); |
277718fa |
5230 | emit_mov2imm_compact(cinfo[i].ba,alt,start+i*4+8,addr); |
57871462 |
5231 | emit_cmpimm(s1l,1); |
57871462 |
5232 | emit_cmovl_reg(alt,addr); |
57871462 |
5233 | } |
ecca05e3 |
5234 | else if (dops[i].opcode == 7) // BGTZ |
57871462 |
5235 | { |
277718fa |
5236 | //emit_movimm(cinfo[i].ba,addr); |
57871462 |
5237 | //emit_movimm(start+i*4+8,ntaddr); |
277718fa |
5238 | emit_mov2imm_compact(cinfo[i].ba,addr,start+i*4+8,ntaddr); |
57871462 |
5239 | emit_cmpimm(s1l,1); |
57871462 |
5240 | emit_cmovl_reg(ntaddr,addr); |
57871462 |
5241 | } |
ecca05e3 |
5242 | else if (dops[i].itype == SJUMP) // BLTZ/BGEZ |
57871462 |
5243 | { |
277718fa |
5244 | //emit_movimm(cinfo[i].ba,alt); |
57871462 |
5245 | //emit_movimm(start+i*4+8,addr); |
de6dbc52 |
5246 | if (dops[i].rs1) { |
5247 | emit_mov2imm_compact(cinfo[i].ba, |
5248 | (dops[i].opcode2 & 1) ? addr : alt, start + i*4 + 8, |
5249 | (dops[i].opcode2 & 1) ? alt : addr); |
5250 | emit_test(s1l,s1l); |
5251 | emit_cmovs_reg(alt,addr); |
5252 | } |
5253 | else |
5254 | emit_movimm((dops[i].opcode2 & 1) ? cinfo[i].ba : start + i*4 + 8, addr); |
57871462 |
5255 | } |
ecca05e3 |
5256 | emit_writeword(addr, &pcaddr); |
57871462 |
5257 | } |
5258 | else |
cf95b4f0 |
5259 | if(dops[i].itype==RJUMP) |
57871462 |
5260 | { |
cf95b4f0 |
5261 | int r=get_reg(branch_regs[i].regmap,dops[i].rs1); |
4919de1e |
5262 | if (ds_writes_rjump_rs(i)) { |
57871462 |
5263 | r=get_reg(branch_regs[i].regmap,RTEMP); |
5264 | } |
643aeae3 |
5265 | emit_writeword(r,&pcaddr); |
57871462 |
5266 | } |
7c3a5182 |
5267 | else {SysPrintf("Unknown branch type in do_ccstub\n");abort();} |
57871462 |
5268 | } |
5269 | // Update cycle count |
5270 | assert(branch_regs[i].regmap[HOST_CCREG]==CCREG||branch_regs[i].regmap[HOST_CCREG]==-1); |
2330734f |
5271 | if(stubs[n].a) emit_addimm(HOST_CCREG,(int)stubs[n].a,HOST_CCREG); |
2a014d73 |
5272 | emit_far_call(cc_interrupt); |
2330734f |
5273 | if(stubs[n].a) emit_addimm(HOST_CCREG,-(int)stubs[n].a,HOST_CCREG); |
b14b6a8f |
5274 | if(stubs[n].d==TAKEN) { |
277718fa |
5275 | if(internal_branch(cinfo[i].ba)) |
5276 | load_needed_regs(branch_regs[i].regmap,regs[(cinfo[i].ba-start)>>2].regmap_entry); |
cf95b4f0 |
5277 | else if(dops[i].itype==RJUMP) { |
57871462 |
5278 | if(get_reg(branch_regs[i].regmap,RTEMP)>=0) |
643aeae3 |
5279 | emit_readword(&pcaddr,get_reg(branch_regs[i].regmap,RTEMP)); |
57871462 |
5280 | else |
cf95b4f0 |
5281 | emit_loadreg(dops[i].rs1,get_reg(branch_regs[i].regmap,dops[i].rs1)); |
57871462 |
5282 | } |
b14b6a8f |
5283 | }else if(stubs[n].d==NOTTAKEN) { |
57871462 |
5284 | if(i<slen-2) load_needed_regs(branch_regs[i].regmap,regmap_pre[i+2]); |
5285 | else load_all_regs(branch_regs[i].regmap); |
57871462 |
5286 | }else{ |
5287 | load_all_regs(branch_regs[i].regmap); |
5288 | } |
d1e4ebd9 |
5289 | if (stubs[n].retaddr) |
5290 | emit_jmp(stubs[n].retaddr); |
5291 | else |
5292 | do_jump_vaddr(stubs[n].e); |
57871462 |
5293 | } |
5294 | |
104df9d3 |
5295 | static void add_to_linker(void *addr, u_int target, int is_internal) |
57871462 |
5296 | { |
643aeae3 |
5297 | assert(linkcount < ARRAY_SIZE(link_addr)); |
5298 | link_addr[linkcount].addr = addr; |
5299 | link_addr[linkcount].target = target; |
104df9d3 |
5300 | link_addr[linkcount].internal = is_internal; |
57871462 |
5301 | linkcount++; |
5302 | } |
5303 | |
eba830cd |
5304 | static void ujump_assemble_write_ra(int i) |
5305 | { |
5306 | int rt; |
5307 | unsigned int return_address; |
5308 | rt=get_reg(branch_regs[i].regmap,31); |
de6dbc52 |
5309 | //assem_debug("branch(%d): eax=%d ecx=%d edx=%d ebx=%d ebp=%d esi=%d edi=%d\n",i,branch_regs[i].regmap[0],branch_regs[i].regmap[1],branch_regs[i].regmap[2],branch_regs[i].regmap[3],branch_regs[i].regmap[5],branch_regs[i].regmap[6],branch_regs[i].regmap[7]); |
eba830cd |
5310 | //assert(rt>=0); |
5311 | return_address=start+i*4+8; |
5312 | if(rt>=0) { |
5313 | #ifdef USE_MINI_HT |
cf95b4f0 |
5314 | if(internal_branch(return_address)&&dops[i+1].rt1!=31) { |
eba830cd |
5315 | int temp=-1; // note: must be ds-safe |
5316 | #ifdef HOST_TEMPREG |
5317 | temp=HOST_TEMPREG; |
5318 | #endif |
5319 | if(temp>=0) do_miniht_insert(return_address,rt,temp); |
5320 | else emit_movimm(return_address,rt); |
5321 | } |
5322 | else |
5323 | #endif |
5324 | { |
5325 | #ifdef REG_PREFETCH |
9f51b4b9 |
5326 | if(temp>=0) |
eba830cd |
5327 | { |
643aeae3 |
5328 | if(i_regmap[temp]!=PTEMP) emit_movimm((uintptr_t)hash_table_get(return_address),temp); |
eba830cd |
5329 | } |
5330 | #endif |
de6dbc52 |
5331 | if (!((regs[i].loadedconst >> rt) & 1)) |
5332 | emit_movimm(return_address, rt); // PC into link register |
eba830cd |
5333 | #ifdef IMM_PREFETCH |
df4dc2b1 |
5334 | emit_prefetch(hash_table_get(return_address)); |
eba830cd |
5335 | #endif |
5336 | } |
5337 | } |
5338 | } |
5339 | |
2330734f |
5340 | static void ujump_assemble(int i, const struct regstat *i_regs) |
57871462 |
5341 | { |
277718fa |
5342 | if(i==(cinfo[i].ba-start)>>2) assem_debug("idle loop\n"); |
57871462 |
5343 | address_generation(i+1,i_regs,regs[i].regmap_entry); |
5344 | #ifdef REG_PREFETCH |
5345 | int temp=get_reg(branch_regs[i].regmap,PTEMP); |
cf95b4f0 |
5346 | if(dops[i].rt1==31&&temp>=0) |
57871462 |
5347 | { |
581335b0 |
5348 | signed char *i_regmap=i_regs->regmap; |
57871462 |
5349 | int return_address=start+i*4+8; |
9f51b4b9 |
5350 | if(get_reg(branch_regs[i].regmap,31)>0) |
643aeae3 |
5351 | if(i_regmap[temp]==PTEMP) emit_movimm((uintptr_t)hash_table_get(return_address),temp); |
57871462 |
5352 | } |
5353 | #endif |
de6dbc52 |
5354 | if (dops[i].rt1 == 31) |
eba830cd |
5355 | ujump_assemble_write_ra(i); // writeback ra for DS |
4ef8f67d |
5356 | ds_assemble(i+1,i_regs); |
5357 | uint64_t bc_unneeded=branch_regs[i].u; |
cf95b4f0 |
5358 | bc_unneeded|=1|(1LL<<dops[i].rt1); |
ad49de89 |
5359 | wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,bc_unneeded); |
53358c1d |
5360 | load_reg(regs[i].regmap,branch_regs[i].regmap,CCREG); |
57871462 |
5361 | int cc,adj; |
5362 | cc=get_reg(branch_regs[i].regmap,CCREG); |
5363 | assert(cc==HOST_CCREG); |
277718fa |
5364 | store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba); |
57871462 |
5365 | #ifdef REG_PREFETCH |
cf95b4f0 |
5366 | if(dops[i].rt1==31&&temp>=0) emit_prefetchreg(temp); |
57871462 |
5367 | #endif |
277718fa |
5368 | do_cc(i,branch_regs[i].regmap,&adj,cinfo[i].ba,TAKEN,0); |
5369 | if(adj) emit_addimm(cc, cinfo[i].ccadj + CLOCK_ADJUST(2) - adj, cc); |
5370 | load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba); |
5371 | if(internal_branch(cinfo[i].ba)) |
57871462 |
5372 | assem_debug("branch: internal\n"); |
5373 | else |
5374 | assem_debug("branch: external\n"); |
277718fa |
5375 | if (internal_branch(cinfo[i].ba) && dops[(cinfo[i].ba-start)>>2].is_ds) { |
57871462 |
5376 | ds_assemble_entry(i); |
5377 | } |
5378 | else { |
277718fa |
5379 | add_to_linker(out,cinfo[i].ba,internal_branch(cinfo[i].ba)); |
57871462 |
5380 | emit_jmp(0); |
5381 | } |
5382 | } |
5383 | |
eba830cd |
5384 | static void rjump_assemble_write_ra(int i) |
5385 | { |
5386 | int rt,return_address; |
a5cd72d0 |
5387 | rt=get_reg_w(branch_regs[i].regmap, dops[i].rt1); |
de6dbc52 |
5388 | //assem_debug("branch(%d): eax=%d ecx=%d edx=%d ebx=%d ebp=%d esi=%d edi=%d\n",i,branch_regs[i].regmap[0],branch_regs[i].regmap[1],branch_regs[i].regmap[2],branch_regs[i].regmap[3],branch_regs[i].regmap[5],branch_regs[i].regmap[6],branch_regs[i].regmap[7]); |
eba830cd |
5389 | assert(rt>=0); |
5390 | return_address=start+i*4+8; |
5391 | #ifdef REG_PREFETCH |
9f51b4b9 |
5392 | if(temp>=0) |
eba830cd |
5393 | { |
643aeae3 |
5394 | if(i_regmap[temp]!=PTEMP) emit_movimm((uintptr_t)hash_table_get(return_address),temp); |
eba830cd |
5395 | } |
5396 | #endif |
de6dbc52 |
5397 | if (!((regs[i].loadedconst >> rt) & 1)) |
5398 | emit_movimm(return_address, rt); // PC into link register |
eba830cd |
5399 | #ifdef IMM_PREFETCH |
df4dc2b1 |
5400 | emit_prefetch(hash_table_get(return_address)); |
eba830cd |
5401 | #endif |
5402 | } |
5403 | |
2330734f |
5404 | static void rjump_assemble(int i, const struct regstat *i_regs) |
57871462 |
5405 | { |
57871462 |
5406 | int temp; |
581335b0 |
5407 | int rs,cc; |
cf95b4f0 |
5408 | rs=get_reg(branch_regs[i].regmap,dops[i].rs1); |
57871462 |
5409 | assert(rs>=0); |
4919de1e |
5410 | if (ds_writes_rjump_rs(i)) { |
57871462 |
5411 | // Delay slot abuse, make a copy of the branch address register |
5412 | temp=get_reg(branch_regs[i].regmap,RTEMP); |
5413 | assert(temp>=0); |
5414 | assert(regs[i].regmap[temp]==RTEMP); |
5415 | emit_mov(rs,temp); |
5416 | rs=temp; |
5417 | } |
5418 | address_generation(i+1,i_regs,regs[i].regmap_entry); |
5419 | #ifdef REG_PREFETCH |
cf95b4f0 |
5420 | if(dops[i].rt1==31) |
57871462 |
5421 | { |
5422 | if((temp=get_reg(branch_regs[i].regmap,PTEMP))>=0) { |
581335b0 |
5423 | signed char *i_regmap=i_regs->regmap; |
57871462 |
5424 | int return_address=start+i*4+8; |
643aeae3 |
5425 | if(i_regmap[temp]==PTEMP) emit_movimm((uintptr_t)hash_table_get(return_address),temp); |
57871462 |
5426 | } |
5427 | } |
5428 | #endif |
5429 | #ifdef USE_MINI_HT |
cf95b4f0 |
5430 | if(dops[i].rs1==31) { |
57871462 |
5431 | int rh=get_reg(regs[i].regmap,RHASH); |
5432 | if(rh>=0) do_preload_rhash(rh); |
5433 | } |
5434 | #endif |
de6dbc52 |
5435 | if (dops[i].rt1 != 0) |
eba830cd |
5436 | rjump_assemble_write_ra(i); |
d5910d5d |
5437 | ds_assemble(i+1,i_regs); |
5438 | uint64_t bc_unneeded=branch_regs[i].u; |
cf95b4f0 |
5439 | bc_unneeded|=1|(1LL<<dops[i].rt1); |
5440 | bc_unneeded&=~(1LL<<dops[i].rs1); |
ad49de89 |
5441 | wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,bc_unneeded); |
cf95b4f0 |
5442 | load_regs(regs[i].regmap,branch_regs[i].regmap,dops[i].rs1,CCREG); |
57871462 |
5443 | cc=get_reg(branch_regs[i].regmap,CCREG); |
5444 | assert(cc==HOST_CCREG); |
581335b0 |
5445 | (void)cc; |
57871462 |
5446 | #ifdef USE_MINI_HT |
5447 | int rh=get_reg(branch_regs[i].regmap,RHASH); |
5448 | int ht=get_reg(branch_regs[i].regmap,RHTBL); |
cf95b4f0 |
5449 | if(dops[i].rs1==31) { |
57871462 |
5450 | if(regs[i].regmap[rh]!=RHASH) do_preload_rhash(rh); |
5451 | do_preload_rhtbl(ht); |
5452 | do_rhash(rs,rh); |
5453 | } |
5454 | #endif |
ad49de89 |
5455 | store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,-1); |
57871462 |
5456 | #ifdef DESTRUCTIVE_WRITEBACK |
ad49de89 |
5457 | if((branch_regs[i].dirty>>rs)&1) { |
cf95b4f0 |
5458 | if(dops[i].rs1!=dops[i+1].rt1&&dops[i].rs1!=dops[i+1].rt2) { |
5459 | emit_loadreg(dops[i].rs1,rs); |
57871462 |
5460 | } |
5461 | } |
5462 | #endif |
5463 | #ifdef REG_PREFETCH |
cf95b4f0 |
5464 | if(dops[i].rt1==31&&temp>=0) emit_prefetchreg(temp); |
57871462 |
5465 | #endif |
5466 | #ifdef USE_MINI_HT |
cf95b4f0 |
5467 | if(dops[i].rs1==31) { |
57871462 |
5468 | do_miniht_load(ht,rh); |
5469 | } |
5470 | #endif |
5471 | //do_cc(i,branch_regs[i].regmap,&adj,-1,TAKEN); |
277718fa |
5472 | //if(adj) emit_addimm(cc,2*(cinfo[i].ccadj+2-adj),cc); // ??? - Shouldn't happen |
57871462 |
5473 | //assert(adj==0); |
277718fa |
5474 | emit_addimm_and_set_flags(cinfo[i].ccadj + CLOCK_ADJUST(2), HOST_CCREG); |
d1e4ebd9 |
5475 | add_stub(CC_STUB,out,NULL,0,i,-1,TAKEN,rs); |
a5cd72d0 |
5476 | if (dops[i+1].itype == RFE) |
911f2d55 |
5477 | // special case for RFE |
5478 | emit_jmp(0); |
5479 | else |
71e490c5 |
5480 | emit_jns(0); |
ad49de89 |
5481 | //load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,-1); |
57871462 |
5482 | #ifdef USE_MINI_HT |
cf95b4f0 |
5483 | if(dops[i].rs1==31) { |
57871462 |
5484 | do_miniht_jump(rs,rh,ht); |
5485 | } |
5486 | else |
5487 | #endif |
5488 | { |
d1e4ebd9 |
5489 | do_jump_vaddr(rs); |
57871462 |
5490 | } |
57871462 |
5491 | #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
cf95b4f0 |
5492 | if(dops[i].rt1!=31&&i<slen-2&&(((u_int)out)&7)) emit_mov(13,13); |
57871462 |
5493 | #endif |
5494 | } |
5495 | |
2330734f |
5496 | static void cjump_assemble(int i, const struct regstat *i_regs) |
57871462 |
5497 | { |
2330734f |
5498 | const signed char *i_regmap = i_regs->regmap; |
57871462 |
5499 | int cc; |
5500 | int match; |
277718fa |
5501 | match=match_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba); |
57871462 |
5502 | assem_debug("match=%d\n",match); |
ad49de89 |
5503 | int s1l,s2l; |
57871462 |
5504 | int unconditional=0,nop=0; |
57871462 |
5505 | int invert=0; |
277718fa |
5506 | int internal=internal_branch(cinfo[i].ba); |
5507 | if(i==(cinfo[i].ba-start)>>2) assem_debug("idle loop\n"); |
57871462 |
5508 | if(!match) invert=1; |
5509 | #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
277718fa |
5510 | if(i>(cinfo[i].ba-start)>>2) invert=1; |
57871462 |
5511 | #endif |
3968e69e |
5512 | #ifdef __aarch64__ |
5513 | invert=1; // because of near cond. branches |
5514 | #endif |
9f51b4b9 |
5515 | |
cf95b4f0 |
5516 | if(dops[i].ooo) { |
5517 | s1l=get_reg(branch_regs[i].regmap,dops[i].rs1); |
5518 | s2l=get_reg(branch_regs[i].regmap,dops[i].rs2); |
57871462 |
5519 | } |
5520 | else { |
cf95b4f0 |
5521 | s1l=get_reg(i_regmap,dops[i].rs1); |
5522 | s2l=get_reg(i_regmap,dops[i].rs2); |
57871462 |
5523 | } |
cf95b4f0 |
5524 | if(dops[i].rs1==0&&dops[i].rs2==0) |
57871462 |
5525 | { |
cf95b4f0 |
5526 | if(dops[i].opcode&1) nop=1; |
57871462 |
5527 | else unconditional=1; |
cf95b4f0 |
5528 | //assert(dops[i].opcode!=5); |
5529 | //assert(dops[i].opcode!=7); |
5530 | //assert(dops[i].opcode!=0x15); |
5531 | //assert(dops[i].opcode!=0x17); |
57871462 |
5532 | } |
cf95b4f0 |
5533 | else if(dops[i].rs1==0) |
57871462 |
5534 | { |
ad49de89 |
5535 | s1l=s2l; |
5536 | s2l=-1; |
57871462 |
5537 | } |
cf95b4f0 |
5538 | else if(dops[i].rs2==0) |
57871462 |
5539 | { |
ad49de89 |
5540 | s2l=-1; |
57871462 |
5541 | } |
5542 | |
cf95b4f0 |
5543 | if(dops[i].ooo) { |
57871462 |
5544 | // Out of order execution (delay slot first) |
5545 | //printf("OOOE\n"); |
5546 | address_generation(i+1,i_regs,regs[i].regmap_entry); |
5547 | ds_assemble(i+1,i_regs); |
5548 | int adj; |
5549 | uint64_t bc_unneeded=branch_regs[i].u; |
cf95b4f0 |
5550 | bc_unneeded&=~((1LL<<dops[i].rs1)|(1LL<<dops[i].rs2)); |
57871462 |
5551 | bc_unneeded|=1; |
ad49de89 |
5552 | wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,bc_unneeded); |
cf95b4f0 |
5553 | load_regs(regs[i].regmap,branch_regs[i].regmap,dops[i].rs1,dops[i].rs2); |
53358c1d |
5554 | load_reg(regs[i].regmap,branch_regs[i].regmap,CCREG); |
57871462 |
5555 | cc=get_reg(branch_regs[i].regmap,CCREG); |
5556 | assert(cc==HOST_CCREG); |
9f51b4b9 |
5557 | if(unconditional) |
277718fa |
5558 | store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba); |
5559 | //do_cc(i,branch_regs[i].regmap,&adj,unconditional?cinfo[i].ba:-1,unconditional); |
57871462 |
5560 | //assem_debug("cycle count (adj)\n"); |
5561 | if(unconditional) { |
277718fa |
5562 | do_cc(i,branch_regs[i].regmap,&adj,cinfo[i].ba,TAKEN,0); |
5563 | if(i!=(cinfo[i].ba-start)>>2 || source[i+1]!=0) { |
5564 | if(adj) emit_addimm(cc, cinfo[i].ccadj + CLOCK_ADJUST(2) - adj, cc); |
5565 | load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba); |
57871462 |
5566 | if(internal) |
5567 | assem_debug("branch: internal\n"); |
5568 | else |
5569 | assem_debug("branch: external\n"); |
277718fa |
5570 | if (internal && dops[(cinfo[i].ba-start)>>2].is_ds) { |
57871462 |
5571 | ds_assemble_entry(i); |
5572 | } |
5573 | else { |
277718fa |
5574 | add_to_linker(out,cinfo[i].ba,internal); |
57871462 |
5575 | emit_jmp(0); |
5576 | } |
5577 | #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
5578 | if(((u_int)out)&7) emit_addnop(0); |
5579 | #endif |
5580 | } |
5581 | } |
5582 | else if(nop) { |
277718fa |
5583 | emit_addimm_and_set_flags(cinfo[i].ccadj + CLOCK_ADJUST(2), cc); |
b14b6a8f |
5584 | void *jaddr=out; |
57871462 |
5585 | emit_jns(0); |
b14b6a8f |
5586 | add_stub(CC_STUB,jaddr,out,0,i,start+i*4+8,NOTTAKEN,0); |
57871462 |
5587 | } |
5588 | else { |
df4dc2b1 |
5589 | void *taken = NULL, *nottaken = NULL, *nottaken1 = NULL; |
57871462 |
5590 | do_cc(i,branch_regs[i].regmap,&adj,-1,0,invert); |
277718fa |
5591 | if(adj&&!invert) emit_addimm(cc, cinfo[i].ccadj + CLOCK_ADJUST(2) - adj, cc); |
9f51b4b9 |
5592 | |
57871462 |
5593 | //printf("branch(%d): eax=%d ecx=%d edx=%d ebx=%d ebp=%d esi=%d edi=%d\n",i,branch_regs[i].regmap[0],branch_regs[i].regmap[1],branch_regs[i].regmap[2],branch_regs[i].regmap[3],branch_regs[i].regmap[5],branch_regs[i].regmap[6],branch_regs[i].regmap[7]); |
5594 | assert(s1l>=0); |
cf95b4f0 |
5595 | if(dops[i].opcode==4) // BEQ |
57871462 |
5596 | { |
5597 | if(s2l>=0) emit_cmp(s1l,s2l); |
5598 | else emit_test(s1l,s1l); |
5599 | if(invert){ |
df4dc2b1 |
5600 | nottaken=out; |
7c3a5182 |
5601 | emit_jne(DJT_1); |
57871462 |
5602 | }else{ |
277718fa |
5603 | add_to_linker(out,cinfo[i].ba,internal); |
57871462 |
5604 | emit_jeq(0); |
5605 | } |
5606 | } |
cf95b4f0 |
5607 | if(dops[i].opcode==5) // BNE |
57871462 |
5608 | { |
5609 | if(s2l>=0) emit_cmp(s1l,s2l); |
5610 | else emit_test(s1l,s1l); |
5611 | if(invert){ |
df4dc2b1 |
5612 | nottaken=out; |
7c3a5182 |
5613 | emit_jeq(DJT_1); |
57871462 |
5614 | }else{ |
277718fa |
5615 | add_to_linker(out,cinfo[i].ba,internal); |
57871462 |
5616 | emit_jne(0); |
5617 | } |
5618 | } |
cf95b4f0 |
5619 | if(dops[i].opcode==6) // BLEZ |
57871462 |
5620 | { |
5621 | emit_cmpimm(s1l,1); |
5622 | if(invert){ |
df4dc2b1 |
5623 | nottaken=out; |
7c3a5182 |
5624 | emit_jge(DJT_1); |
57871462 |
5625 | }else{ |
277718fa |
5626 | add_to_linker(out,cinfo[i].ba,internal); |
57871462 |
5627 | emit_jl(0); |
5628 | } |
5629 | } |
cf95b4f0 |
5630 | if(dops[i].opcode==7) // BGTZ |
57871462 |
5631 | { |
5632 | emit_cmpimm(s1l,1); |
5633 | if(invert){ |
df4dc2b1 |
5634 | nottaken=out; |
7c3a5182 |
5635 | emit_jl(DJT_1); |
57871462 |
5636 | }else{ |
277718fa |
5637 | add_to_linker(out,cinfo[i].ba,internal); |
57871462 |
5638 | emit_jge(0); |
5639 | } |
5640 | } |
5641 | if(invert) { |
df4dc2b1 |
5642 | if(taken) set_jump_target(taken, out); |
57871462 |
5643 | #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
277718fa |
5644 | if (match && (!internal || !dops[(cinfo[i].ba-start)>>2].is_ds)) { |
57871462 |
5645 | if(adj) { |
2330734f |
5646 | emit_addimm(cc,-adj,cc); |
277718fa |
5647 | add_to_linker(out,cinfo[i].ba,internal); |
57871462 |
5648 | }else{ |
5649 | emit_addnop(13); |
277718fa |
5650 | add_to_linker(out,cinfo[i].ba,internal*2); |
57871462 |
5651 | } |
5652 | emit_jmp(0); |
5653 | }else |
5654 | #endif |
5655 | { |
2330734f |
5656 | if(adj) emit_addimm(cc,-adj,cc); |
277718fa |
5657 | store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba); |
5658 | load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba); |
57871462 |
5659 | if(internal) |
5660 | assem_debug("branch: internal\n"); |
5661 | else |
5662 | assem_debug("branch: external\n"); |
277718fa |
5663 | if (internal && dops[(cinfo[i].ba - start) >> 2].is_ds) { |
57871462 |
5664 | ds_assemble_entry(i); |
5665 | } |
5666 | else { |
277718fa |
5667 | add_to_linker(out,cinfo[i].ba,internal); |
57871462 |
5668 | emit_jmp(0); |
5669 | } |
5670 | } |
df4dc2b1 |
5671 | set_jump_target(nottaken, out); |
57871462 |
5672 | } |
5673 | |
df4dc2b1 |
5674 | if(nottaken1) set_jump_target(nottaken1, out); |
57871462 |
5675 | if(adj) { |
2330734f |
5676 | if(!invert) emit_addimm(cc,adj,cc); |
57871462 |
5677 | } |
5678 | } // (!unconditional) |
5679 | } // if(ooo) |
5680 | else |
5681 | { |
5682 | // In-order execution (branch first) |
df4dc2b1 |
5683 | void *taken = NULL, *nottaken = NULL, *nottaken1 = NULL; |
57871462 |
5684 | if(!unconditional&&!nop) { |
57871462 |
5685 | //printf("branch(%d): eax=%d ecx=%d edx=%d ebx=%d ebp=%d esi=%d edi=%d\n",i,branch_regs[i].regmap[0],branch_regs[i].regmap[1],branch_regs[i].regmap[2],branch_regs[i].regmap[3],branch_regs[i].regmap[5],branch_regs[i].regmap[6],branch_regs[i].regmap[7]); |
5686 | assert(s1l>=0); |
cf95b4f0 |
5687 | if((dops[i].opcode&0x2f)==4) // BEQ |
57871462 |
5688 | { |
5689 | if(s2l>=0) emit_cmp(s1l,s2l); |
5690 | else emit_test(s1l,s1l); |
df4dc2b1 |
5691 | nottaken=out; |
7c3a5182 |
5692 | emit_jne(DJT_2); |
57871462 |
5693 | } |
cf95b4f0 |
5694 | if((dops[i].opcode&0x2f)==5) // BNE |
57871462 |
5695 | { |
5696 | if(s2l>=0) emit_cmp(s1l,s2l); |
5697 | else emit_test(s1l,s1l); |
df4dc2b1 |
5698 | nottaken=out; |
7c3a5182 |
5699 | emit_jeq(DJT_2); |
57871462 |
5700 | } |
cf95b4f0 |
5701 | if((dops[i].opcode&0x2f)==6) // BLEZ |
57871462 |
5702 | { |
5703 | emit_cmpimm(s1l,1); |
df4dc2b1 |
5704 | nottaken=out; |
7c3a5182 |
5705 | emit_jge(DJT_2); |
57871462 |
5706 | } |
cf95b4f0 |
5707 | if((dops[i].opcode&0x2f)==7) // BGTZ |
57871462 |
5708 | { |
5709 | emit_cmpimm(s1l,1); |
df4dc2b1 |
5710 | nottaken=out; |
7c3a5182 |
5711 | emit_jl(DJT_2); |
57871462 |
5712 | } |
5713 | } // if(!unconditional) |
5714 | int adj; |
5715 | uint64_t ds_unneeded=branch_regs[i].u; |
cf95b4f0 |
5716 | ds_unneeded&=~((1LL<<dops[i+1].rs1)|(1LL<<dops[i+1].rs2)); |
57871462 |
5717 | ds_unneeded|=1; |
57871462 |
5718 | // branch taken |
5719 | if(!nop) { |
df4dc2b1 |
5720 | if(taken) set_jump_target(taken, out); |
57871462 |
5721 | assem_debug("1:\n"); |
ad49de89 |
5722 | wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,ds_unneeded); |
57871462 |
5723 | // load regs |
cf95b4f0 |
5724 | load_regs(regs[i].regmap,branch_regs[i].regmap,dops[i+1].rs1,dops[i+1].rs2); |
57871462 |
5725 | address_generation(i+1,&branch_regs[i],0); |
37387d8b |
5726 | if (ram_offset) |
53358c1d |
5727 | load_reg(regs[i].regmap,branch_regs[i].regmap,ROREG); |
ad49de89 |
5728 | load_regs(regs[i].regmap,branch_regs[i].regmap,CCREG,INVCP); |
57871462 |
5729 | ds_assemble(i+1,&branch_regs[i]); |
4f13a577 |
5730 | drc_dbg_emit_wb_dirtys(i+1, &branch_regs[i]); |
57871462 |
5731 | cc=get_reg(branch_regs[i].regmap,CCREG); |
5732 | if(cc==-1) { |
5733 | emit_loadreg(CCREG,cc=HOST_CCREG); |
5734 | // CHECK: Is the following instruction (fall thru) allocated ok? |
5735 | } |
5736 | assert(cc==HOST_CCREG); |
277718fa |
5737 | store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba); |
5738 | do_cc(i,i_regmap,&adj,cinfo[i].ba,TAKEN,0); |
57871462 |
5739 | assem_debug("cycle count (adj)\n"); |
277718fa |
5740 | if(adj) emit_addimm(cc, cinfo[i].ccadj + CLOCK_ADJUST(2) - adj, cc); |
5741 | load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba); |
57871462 |
5742 | if(internal) |
5743 | assem_debug("branch: internal\n"); |
5744 | else |
5745 | assem_debug("branch: external\n"); |
277718fa |
5746 | if (internal && dops[(cinfo[i].ba - start) >> 2].is_ds) { |
57871462 |
5747 | ds_assemble_entry(i); |
5748 | } |
5749 | else { |
277718fa |
5750 | add_to_linker(out,cinfo[i].ba,internal); |
57871462 |
5751 | emit_jmp(0); |
5752 | } |
5753 | } |
5754 | // branch not taken |
57871462 |
5755 | if(!unconditional) { |
df4dc2b1 |
5756 | if(nottaken1) set_jump_target(nottaken1, out); |
5757 | set_jump_target(nottaken, out); |
57871462 |
5758 | assem_debug("2:\n"); |
fe807a8a |
5759 | wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,ds_unneeded); |
37387d8b |
5760 | // load regs |
fe807a8a |
5761 | load_regs(regs[i].regmap,branch_regs[i].regmap,dops[i+1].rs1,dops[i+1].rs2); |
5762 | address_generation(i+1,&branch_regs[i],0); |
37387d8b |
5763 | if (ram_offset) |
53358c1d |
5764 | load_reg(regs[i].regmap,branch_regs[i].regmap,ROREG); |
37387d8b |
5765 | load_regs(regs[i].regmap,branch_regs[i].regmap,CCREG,INVCP); |
fe807a8a |
5766 | ds_assemble(i+1,&branch_regs[i]); |
57871462 |
5767 | cc=get_reg(branch_regs[i].regmap,CCREG); |
fe807a8a |
5768 | if (cc == -1) { |
57871462 |
5769 | // Cycle count isn't in a register, temporarily load it then write it out |
5770 | emit_loadreg(CCREG,HOST_CCREG); |
277718fa |
5771 | emit_addimm_and_set_flags(cinfo[i].ccadj + CLOCK_ADJUST(2), HOST_CCREG); |
b14b6a8f |
5772 | void *jaddr=out; |
57871462 |
5773 | emit_jns(0); |
b14b6a8f |
5774 | add_stub(CC_STUB,jaddr,out,0,i,start+i*4+8,NOTTAKEN,0); |
57871462 |
5775 | emit_storereg(CCREG,HOST_CCREG); |
5776 | } |
5777 | else{ |
5778 | cc=get_reg(i_regmap,CCREG); |
5779 | assert(cc==HOST_CCREG); |
277718fa |
5780 | emit_addimm_and_set_flags(cinfo[i].ccadj + CLOCK_ADJUST(2), cc); |
b14b6a8f |
5781 | void *jaddr=out; |
57871462 |
5782 | emit_jns(0); |
fe807a8a |
5783 | add_stub(CC_STUB,jaddr,out,0,i,start+i*4+8,NOTTAKEN,0); |
57871462 |
5784 | } |
5785 | } |
5786 | } |
5787 | } |
5788 | |
2330734f |
5789 | static void sjump_assemble(int i, const struct regstat *i_regs) |
57871462 |
5790 | { |
2330734f |
5791 | const signed char *i_regmap = i_regs->regmap; |
57871462 |
5792 | int cc; |
5793 | int match; |
277718fa |
5794 | match=match_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba); |
2acc46cd |
5795 | assem_debug("smatch=%d ooo=%d\n", match, dops[i].ooo); |
ad49de89 |
5796 | int s1l; |
57871462 |
5797 | int unconditional=0,nevertaken=0; |
57871462 |
5798 | int invert=0; |
277718fa |
5799 | int internal=internal_branch(cinfo[i].ba); |
5800 | if(i==(cinfo[i].ba-start)>>2) assem_debug("idle loop\n"); |
57871462 |
5801 | if(!match) invert=1; |
5802 | #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
277718fa |
5803 | if(i>(cinfo[i].ba-start)>>2) invert=1; |
57871462 |
5804 | #endif |
3968e69e |
5805 | #ifdef __aarch64__ |
5806 | invert=1; // because of near cond. branches |
5807 | #endif |
57871462 |
5808 | |
cf95b4f0 |
5809 | //if(dops[i].opcode2>=0x10) return; // FIXME (BxxZAL) |
5810 | //assert(dops[i].opcode2<0x10||dops[i].rs1==0); // FIXME (BxxZAL) |
57871462 |
5811 | |
cf95b4f0 |
5812 | if(dops[i].ooo) { |
5813 | s1l=get_reg(branch_regs[i].regmap,dops[i].rs1); |
57871462 |
5814 | } |
5815 | else { |
cf95b4f0 |
5816 | s1l=get_reg(i_regmap,dops[i].rs1); |
57871462 |
5817 | } |
cf95b4f0 |
5818 | if(dops[i].rs1==0) |
57871462 |
5819 | { |
cf95b4f0 |
5820 | if(dops[i].opcode2&1) unconditional=1; |
57871462 |
5821 | else nevertaken=1; |
5822 | // These are never taken (r0 is never less than zero) |
cf95b4f0 |
5823 | //assert(dops[i].opcode2!=0); |
5824 | //assert(dops[i].opcode2!=2); |
5825 | //assert(dops[i].opcode2!=0x10); |
5826 | //assert(dops[i].opcode2!=0x12); |
57871462 |
5827 | } |
57871462 |
5828 | |
cf95b4f0 |
5829 | if(dops[i].ooo) { |
57871462 |
5830 | // Out of order execution (delay slot first) |
5831 | //printf("OOOE\n"); |
5832 | address_generation(i+1,i_regs,regs[i].regmap_entry); |
5833 | ds_assemble(i+1,i_regs); |
5834 | int adj; |
5835 | uint64_t bc_unneeded=branch_regs[i].u; |
cf95b4f0 |
5836 | bc_unneeded&=~((1LL<<dops[i].rs1)|(1LL<<dops[i].rs2)); |
57871462 |
5837 | bc_unneeded|=1; |
ad49de89 |
5838 | wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,bc_unneeded); |
cf95b4f0 |
5839 | load_regs(regs[i].regmap,branch_regs[i].regmap,dops[i].rs1,dops[i].rs1); |
53358c1d |
5840 | load_reg(regs[i].regmap,branch_regs[i].regmap,CCREG); |
cf95b4f0 |
5841 | if(dops[i].rt1==31) { |
57871462 |
5842 | int rt,return_address; |
57871462 |
5843 | rt=get_reg(branch_regs[i].regmap,31); |
de6dbc52 |
5844 | //assem_debug("branch(%d): eax=%d ecx=%d edx=%d ebx=%d ebp=%d esi=%d edi=%d\n",i,branch_regs[i].regmap[0],branch_regs[i].regmap[1],branch_regs[i].regmap[2],branch_regs[i].regmap[3],branch_regs[i].regmap[5],branch_regs[i].regmap[6],branch_regs[i].regmap[7]); |
57871462 |
5845 | if(rt>=0) { |
5846 | // Save the PC even if the branch is not taken |
5847 | return_address=start+i*4+8; |
5848 | emit_movimm(return_address,rt); // PC into link register |
5849 | #ifdef IMM_PREFETCH |
df4dc2b1 |
5850 | if(!nevertaken) emit_prefetch(hash_table_get(return_address)); |
57871462 |
5851 | #endif |
5852 | } |
5853 | } |
5854 | cc=get_reg(branch_regs[i].regmap,CCREG); |
5855 | assert(cc==HOST_CCREG); |
9f51b4b9 |
5856 | if(unconditional) |
277718fa |
5857 | store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba); |
5858 | //do_cc(i,branch_regs[i].regmap,&adj,unconditional?cinfo[i].ba:-1,unconditional); |
57871462 |
5859 | assem_debug("cycle count (adj)\n"); |
5860 | if(unconditional) { |
277718fa |
5861 | do_cc(i,branch_regs[i].regmap,&adj,cinfo[i].ba,TAKEN,0); |
5862 | if(i!=(cinfo[i].ba-start)>>2 || source[i+1]!=0) { |
5863 | if(adj) emit_addimm(cc, cinfo[i].ccadj + CLOCK_ADJUST(2) - adj, cc); |
5864 | load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba); |
57871462 |
5865 | if(internal) |
5866 | assem_debug("branch: internal\n"); |
5867 | else |
5868 | assem_debug("branch: external\n"); |
277718fa |
5869 | if (internal && dops[(cinfo[i].ba - start) >> 2].is_ds) { |
57871462 |
5870 | ds_assemble_entry(i); |
5871 | } |
5872 | else { |
277718fa |
5873 | add_to_linker(out,cinfo[i].ba,internal); |
57871462 |
5874 | emit_jmp(0); |
5875 | } |
5876 | #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
5877 | if(((u_int)out)&7) emit_addnop(0); |
5878 | #endif |
5879 | } |
5880 | } |
5881 | else if(nevertaken) { |
277718fa |
5882 | emit_addimm_and_set_flags(cinfo[i].ccadj + CLOCK_ADJUST(2), cc); |
b14b6a8f |
5883 | void *jaddr=out; |
57871462 |
5884 | emit_jns(0); |
b14b6a8f |
5885 | add_stub(CC_STUB,jaddr,out,0,i,start+i*4+8,NOTTAKEN,0); |
57871462 |
5886 | } |
5887 | else { |
df4dc2b1 |
5888 | void *nottaken = NULL; |
57871462 |
5889 | do_cc(i,branch_regs[i].regmap,&adj,-1,0,invert); |
277718fa |
5890 | if(adj&&!invert) emit_addimm(cc, cinfo[i].ccadj + CLOCK_ADJUST(2) - adj, cc); |
57871462 |
5891 | { |
5892 | assert(s1l>=0); |
ecca05e3 |
5893 | if ((dops[i].opcode2 & 1) == 0) // BLTZ/BLTZAL |
57871462 |
5894 | { |
5895 | emit_test(s1l,s1l); |
5896 | if(invert){ |
df4dc2b1 |
5897 | nottaken=out; |
7c3a5182 |
5898 | emit_jns(DJT_1); |
57871462 |
5899 | }else{ |
277718fa |
5900 | add_to_linker(out,cinfo[i].ba,internal); |
57871462 |
5901 | emit_js(0); |
5902 | } |
5903 | } |
ecca05e3 |
5904 | else // BGEZ/BGEZAL |
57871462 |
5905 | { |
5906 | emit_test(s1l,s1l); |
5907 | if(invert){ |
df4dc2b1 |
5908 | nottaken=out; |
7c3a5182 |
5909 | emit_js(DJT_1); |
57871462 |
5910 | }else{ |
277718fa |
5911 | add_to_linker(out,cinfo[i].ba,internal); |
57871462 |
5912 | emit_jns(0); |
5913 | } |
5914 | } |
ad49de89 |
5915 | } |
9f51b4b9 |
5916 | |
57871462 |
5917 | if(invert) { |
5918 | #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
277718fa |
5919 | if (match && (!internal || !dops[(cinfo[i].ba - start) >> 2].is_ds)) { |
57871462 |
5920 | if(adj) { |
2330734f |
5921 | emit_addimm(cc,-adj,cc); |
277718fa |
5922 | add_to_linker(out,cinfo[i].ba,internal); |
57871462 |
5923 | }else{ |
5924 | emit_addnop(13); |
277718fa |
5925 | add_to_linker(out,cinfo[i].ba,internal*2); |
57871462 |
5926 | } |
5927 | emit_jmp(0); |
5928 | }else |
5929 | #endif |
5930 | { |
2330734f |
5931 | if(adj) emit_addimm(cc,-adj,cc); |
277718fa |
5932 | store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba); |
5933 | load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba); |
57871462 |
5934 | if(internal) |
5935 | assem_debug("branch: internal\n"); |
5936 | else |
5937 | assem_debug("branch: external\n"); |
277718fa |
5938 | if (internal && dops[(cinfo[i].ba - start) >> 2].is_ds) { |
57871462 |
5939 | ds_assemble_entry(i); |
5940 | } |
5941 | else { |
277718fa |
5942 | add_to_linker(out,cinfo[i].ba,internal); |
57871462 |
5943 | emit_jmp(0); |
5944 | } |
5945 | } |
df4dc2b1 |
5946 | set_jump_target(nottaken, out); |
57871462 |
5947 | } |
5948 | |
5949 | if(adj) { |
2330734f |
5950 | if(!invert) emit_addimm(cc,adj,cc); |
57871462 |
5951 | } |
5952 | } // (!unconditional) |
5953 | } // if(ooo) |
5954 | else |
5955 | { |
5956 | // In-order execution (branch first) |
5957 | //printf("IOE\n"); |
df4dc2b1 |
5958 | void *nottaken = NULL; |
de6dbc52 |
5959 | if (!unconditional && !nevertaken) { |
ecca05e3 |
5960 | assert(s1l >= 0); |
5961 | emit_test(s1l, s1l); |
5962 | } |
5963 | if (dops[i].rt1 == 31) { |
5964 | int rt, return_address; |
5965 | rt = get_reg(branch_regs[i].regmap,31); |
5966 | if(rt >= 0) { |
a6491170 |
5967 | // Save the PC even if the branch is not taken |
ecca05e3 |
5968 | return_address = start + i*4+8; |
5969 | emit_movimm(return_address, rt); // PC into link register |
a6491170 |
5970 | #ifdef IMM_PREFETCH |
df4dc2b1 |
5971 | emit_prefetch(hash_table_get(return_address)); |
a6491170 |
5972 | #endif |
5973 | } |
5974 | } |
de6dbc52 |
5975 | if (!unconditional && !nevertaken) { |
ecca05e3 |
5976 | nottaken = out; |
5977 | if (!(dops[i].opcode2 & 1)) // BLTZ/BLTZAL |
5978 | emit_jns(DJT_1); |
5979 | else // BGEZ/BGEZAL |
5980 | emit_js(DJT_1); |
5981 | } |
57871462 |
5982 | int adj; |
5983 | uint64_t ds_unneeded=branch_regs[i].u; |
cf95b4f0 |
5984 | ds_unneeded&=~((1LL<<dops[i+1].rs1)|(1LL<<dops[i+1].rs2)); |
57871462 |
5985 | ds_unneeded|=1; |
57871462 |
5986 | // branch taken |
5987 | if(!nevertaken) { |
5988 | //assem_debug("1:\n"); |
ad49de89 |
5989 | wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,ds_unneeded); |
57871462 |
5990 | // load regs |
cf95b4f0 |
5991 | load_regs(regs[i].regmap,branch_regs[i].regmap,dops[i+1].rs1,dops[i+1].rs2); |
57871462 |
5992 | address_generation(i+1,&branch_regs[i],0); |
37387d8b |
5993 | if (ram_offset) |
53358c1d |
5994 | load_reg(regs[i].regmap,branch_regs[i].regmap,ROREG); |
ad49de89 |
5995 | load_regs(regs[i].regmap,branch_regs[i].regmap,CCREG,INVCP); |
57871462 |
5996 | ds_assemble(i+1,&branch_regs[i]); |
5997 | cc=get_reg(branch_regs[i].regmap,CCREG); |
5998 | if(cc==-1) { |
5999 | emit_loadreg(CCREG,cc=HOST_CCREG); |
6000 | // CHECK: Is the following instruction (fall thru) allocated ok? |
6001 | } |
6002 | assert(cc==HOST_CCREG); |
277718fa |
6003 | store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba); |
6004 | do_cc(i,i_regmap,&adj,cinfo[i].ba,TAKEN,0); |
57871462 |
6005 | assem_debug("cycle count (adj)\n"); |
277718fa |
6006 | if(adj) emit_addimm(cc, cinfo[i].ccadj + CLOCK_ADJUST(2) - adj, cc); |
6007 | load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba); |
57871462 |
6008 | if(internal) |
6009 | assem_debug("branch: internal\n"); |
6010 | else |
6011 | assem_debug("branch: external\n"); |
277718fa |
6012 | if (internal && dops[(cinfo[i].ba - start) >> 2].is_ds) { |
57871462 |
6013 | ds_assemble_entry(i); |
6014 | } |
6015 | else { |
277718fa |
6016 | add_to_linker(out,cinfo[i].ba,internal); |
57871462 |
6017 | emit_jmp(0); |
6018 | } |
6019 | } |
6020 | // branch not taken |
57871462 |
6021 | if(!unconditional) { |
de6dbc52 |
6022 | if (!nevertaken) { |
6023 | assert(nottaken); |
6024 | set_jump_target(nottaken, out); |
6025 | } |
57871462 |
6026 | assem_debug("1:\n"); |
fe807a8a |
6027 | wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,ds_unneeded); |
6028 | load_regs(regs[i].regmap,branch_regs[i].regmap,dops[i+1].rs1,dops[i+1].rs2); |
6029 | address_generation(i+1,&branch_regs[i],0); |
5a18ce2e |
6030 | if (ram_offset) |
53358c1d |
6031 | load_reg(regs[i].regmap,branch_regs[i].regmap,ROREG); |
5a18ce2e |
6032 | load_regs(regs[i].regmap,branch_regs[i].regmap,CCREG,INVCP); |
fe807a8a |
6033 | ds_assemble(i+1,&branch_regs[i]); |
57871462 |
6034 | cc=get_reg(branch_regs[i].regmap,CCREG); |
fe807a8a |
6035 | if (cc == -1) { |
57871462 |
6036 | // Cycle count isn't in a register, temporarily load it then write it out |
6037 | emit_loadreg(CCREG,HOST_CCREG); |
277718fa |
6038 | emit_addimm_and_set_flags(cinfo[i].ccadj + CLOCK_ADJUST(2), HOST_CCREG); |
b14b6a8f |
6039 | void *jaddr=out; |
57871462 |
6040 | emit_jns(0); |
b14b6a8f |
6041 | add_stub(CC_STUB,jaddr,out,0,i,start+i*4+8,NOTTAKEN,0); |
57871462 |
6042 | emit_storereg(CCREG,HOST_CCREG); |
6043 | } |
6044 | else{ |
6045 | cc=get_reg(i_regmap,CCREG); |
6046 | assert(cc==HOST_CCREG); |
277718fa |
6047 | emit_addimm_and_set_flags(cinfo[i].ccadj + CLOCK_ADJUST(2), cc); |
b14b6a8f |
6048 | void *jaddr=out; |
57871462 |
6049 | emit_jns(0); |
fe807a8a |
6050 | add_stub(CC_STUB,jaddr,out,0,i,start+i*4+8,NOTTAKEN,0); |
57871462 |
6051 | } |
6052 | } |
6053 | } |
6054 | } |
6055 | |
670c0f22 |
6056 | static void check_regmap(signed char *regmap) |
6057 | { |
6058 | #ifndef NDEBUG |
6059 | int i,j; |
6060 | for (i = 0; i < HOST_REGS; i++) { |
6061 | if (regmap[i] < 0) |
6062 | continue; |
6063 | for (j = i + 1; j < HOST_REGS; j++) |
6064 | assert(regmap[i] != regmap[j]); |
6065 | } |
6066 | #endif |
6067 | } |
6068 | |
4600ba03 |
6069 | #ifdef DISASM |
2acc46cd |
6070 | #include <inttypes.h> |
53dc27f6 |
6071 | static char insn[MAXBLOCK][10]; |
6072 | |
6073 | #define set_mnemonic(i_, n_) \ |
6074 | strcpy(insn[i_], n_) |
6075 | |
2acc46cd |
6076 | void print_regmap(const char *name, const signed char *regmap) |
6077 | { |
6078 | char buf[5]; |
6079 | int i, l; |
6080 | fputs(name, stdout); |
6081 | for (i = 0; i < HOST_REGS; i++) { |
6082 | l = 0; |
6083 | if (regmap[i] >= 0) |
6084 | l = snprintf(buf, sizeof(buf), "$%d", regmap[i]); |
6085 | for (; l < 3; l++) |
6086 | buf[l] = ' '; |
6087 | buf[l] = 0; |
6088 | printf(" r%d=%s", i, buf); |
6089 | } |
6090 | fputs("\n", stdout); |
6091 | } |
6092 | |
57871462 |
6093 | /* disassembly */ |
6094 | void disassemble_inst(int i) |
6095 | { |
cf95b4f0 |
6096 | if (dops[i].bt) printf("*"); else printf(" "); |
6097 | switch(dops[i].itype) { |
57871462 |
6098 | case UJUMP: |
277718fa |
6099 | printf (" %x: %s %8x\n",start+i*4,insn[i],cinfo[i].ba);break; |
57871462 |
6100 | case CJUMP: |
277718fa |
6101 | printf (" %x: %s r%d,r%d,%8x\n",start+i*4,insn[i],dops[i].rs1,dops[i].rs2,i?start+i*4+4+((signed int)((unsigned int)source[i]<<16)>>14):cinfo[i].ba);break; |
57871462 |
6102 | case SJUMP: |
cf95b4f0 |
6103 | printf (" %x: %s r%d,%8x\n",start+i*4,insn[i],dops[i].rs1,start+i*4+4+((signed int)((unsigned int)source[i]<<16)>>14));break; |
57871462 |
6104 | case RJUMP: |
ecca05e3 |
6105 | if (dops[i].opcode2 == 9 && dops[i].rt1 != 31) |
cf95b4f0 |
6106 | printf (" %x: %s r%d,r%d\n",start+i*4,insn[i],dops[i].rt1,dops[i].rs1); |
5067f341 |
6107 | else |
cf95b4f0 |
6108 | printf (" %x: %s r%d\n",start+i*4,insn[i],dops[i].rs1); |
5067f341 |
6109 | break; |
57871462 |
6110 | case IMM16: |
cf95b4f0 |
6111 | if(dops[i].opcode==0xf) //LUI |
277718fa |
6112 | printf (" %x: %s r%d,%4x0000\n",start+i*4,insn[i],dops[i].rt1,cinfo[i].imm&0xffff); |
57871462 |
6113 | else |
277718fa |
6114 | printf (" %x: %s r%d,r%d,%d\n",start+i*4,insn[i],dops[i].rt1,dops[i].rs1,cinfo[i].imm); |
57871462 |
6115 | break; |
6116 | case LOAD: |
6117 | case LOADLR: |
277718fa |
6118 | printf (" %x: %s r%d,r%d+%x\n",start+i*4,insn[i],dops[i].rt1,dops[i].rs1,cinfo[i].imm); |
57871462 |
6119 | break; |
6120 | case STORE: |
6121 | case STORELR: |
277718fa |
6122 | printf (" %x: %s r%d,r%d+%x\n",start+i*4,insn[i],dops[i].rs2,dops[i].rs1,cinfo[i].imm); |
57871462 |
6123 | break; |
6124 | case ALU: |
6125 | case SHIFT: |
cf95b4f0 |
6126 | printf (" %x: %s r%d,r%d,r%d\n",start+i*4,insn[i],dops[i].rt1,dops[i].rs1,dops[i].rs2); |
57871462 |
6127 | break; |
6128 | case MULTDIV: |
cf95b4f0 |
6129 | printf (" %x: %s r%d,r%d\n",start+i*4,insn[i],dops[i].rs1,dops[i].rs2); |
57871462 |
6130 | break; |
6131 | case SHIFTIMM: |
277718fa |
6132 | printf (" %x: %s r%d,r%d,%d\n",start+i*4,insn[i],dops[i].rt1,dops[i].rs1,cinfo[i].imm); |
57871462 |
6133 | break; |
6134 | case MOV: |
cf95b4f0 |
6135 | if((dops[i].opcode2&0x1d)==0x10) |
6136 | printf (" %x: %s r%d\n",start+i*4,insn[i],dops[i].rt1); |
6137 | else if((dops[i].opcode2&0x1d)==0x11) |
6138 | printf (" %x: %s r%d\n",start+i*4,insn[i],dops[i].rs1); |
57871462 |
6139 | else |
6140 | printf (" %x: %s\n",start+i*4,insn[i]); |
6141 | break; |
6142 | case COP0: |
cf95b4f0 |
6143 | if(dops[i].opcode2==0) |
6144 | printf (" %x: %s r%d,cpr0[%d]\n",start+i*4,insn[i],dops[i].rt1,(source[i]>>11)&0x1f); // MFC0 |
6145 | else if(dops[i].opcode2==4) |
6146 | printf (" %x: %s r%d,cpr0[%d]\n",start+i*4,insn[i],dops[i].rs1,(source[i]>>11)&0x1f); // MTC0 |
57871462 |
6147 | else printf (" %x: %s\n",start+i*4,insn[i]); |
6148 | break; |
b9b61529 |
6149 | case COP2: |
cf95b4f0 |
6150 | if(dops[i].opcode2<3) |
6151 | printf (" %x: %s r%d,cpr2[%d]\n",start+i*4,insn[i],dops[i].rt1,(source[i]>>11)&0x1f); // MFC2 |
6152 | else if(dops[i].opcode2>3) |
6153 | printf (" %x: %s r%d,cpr2[%d]\n",start+i*4,insn[i],dops[i].rs1,(source[i]>>11)&0x1f); // MTC2 |
b9b61529 |
6154 | else printf (" %x: %s\n",start+i*4,insn[i]); |
6155 | break; |
b9b61529 |
6156 | case C2LS: |
277718fa |
6157 | printf (" %x: %s cpr2[%d],r%d+%x\n",start+i*4,insn[i],(source[i]>>16)&0x1f,dops[i].rs1,cinfo[i].imm); |
b9b61529 |
6158 | break; |
1e973cb0 |
6159 | case INTCALL: |
6160 | printf (" %x: %s (INTCALL)\n",start+i*4,insn[i]); |
6161 | break; |
57871462 |
6162 | default: |
6163 | //printf (" %s %8x\n",insn[i],source[i]); |
6164 | printf (" %x: %s\n",start+i*4,insn[i]); |
6165 | } |
a5cd72d0 |
6166 | #ifndef REGMAP_PRINT |
2acc46cd |
6167 | return; |
a5cd72d0 |
6168 | #endif |
33a1eda1 |
6169 | printf("D: %x WD: %x U: %"PRIx64" hC: %x hWC: %x hLC: %x\n", |
a5cd72d0 |
6170 | regs[i].dirty, regs[i].wasdirty, unneeded_reg[i], |
6171 | regs[i].isconst, regs[i].wasconst, regs[i].loadedconst); |
2acc46cd |
6172 | print_regmap("pre: ", regmap_pre[i]); |
6173 | print_regmap("entry: ", regs[i].regmap_entry); |
6174 | print_regmap("map: ", regs[i].regmap); |
6175 | if (dops[i].is_jump) { |
6176 | print_regmap("bentry:", branch_regs[i].regmap_entry); |
6177 | print_regmap("bmap: ", branch_regs[i].regmap); |
6178 | } |
57871462 |
6179 | } |
4600ba03 |
6180 | #else |
53dc27f6 |
6181 | #define set_mnemonic(i_, n_) |
4600ba03 |
6182 | static void disassemble_inst(int i) {} |
6183 | #endif // DISASM |
57871462 |
6184 | |
d848b60a |
6185 | #define DRC_TEST_VAL 0x74657374 |
6186 | |
d9e2b173 |
6187 | static noinline void new_dynarec_test(void) |
d848b60a |
6188 | { |
be516ebe |
6189 | int (*testfunc)(void); |
d148d265 |
6190 | void *beginning; |
be516ebe |
6191 | int ret[2]; |
6192 | size_t i; |
d148d265 |
6193 | |
687b4580 |
6194 | // check structure linkage |
7c3a5182 |
6195 | if ((u_char *)rcnts - (u_char *)&psxRegs != sizeof(psxRegs)) |
687b4580 |
6196 | { |
7c3a5182 |
6197 | SysPrintf("linkage_arm* miscompilation/breakage detected.\n"); |
687b4580 |
6198 | } |
6199 | |
d9e2b173 |
6200 | SysPrintf("(%p) testing if we can run recompiled code @%p...\n", |
6201 | new_dynarec_test, out); |
6202 | ((volatile u_int *)NDRC_WRITE_OFFSET(out))[0]++; // make the cache dirty |
be516ebe |
6203 | |
6204 | for (i = 0; i < ARRAY_SIZE(ret); i++) { |
2a014d73 |
6205 | out = ndrc->translation_cache; |
be516ebe |
6206 | beginning = start_block(); |
6207 | emit_movimm(DRC_TEST_VAL + i, 0); // test |
6208 | emit_ret(); |
6209 | literal_pool(0); |
6210 | end_block(beginning); |
6211 | testfunc = beginning; |
6212 | ret[i] = testfunc(); |
6213 | } |
6214 | |
6215 | if (ret[0] == DRC_TEST_VAL && ret[1] == DRC_TEST_VAL + 1) |
d848b60a |
6216 | SysPrintf("test passed.\n"); |
6217 | else |
be516ebe |
6218 | SysPrintf("test failed, will likely crash soon (r=%08x %08x)\n", ret[0], ret[1]); |
2a014d73 |
6219 | out = ndrc->translation_cache; |
d848b60a |
6220 | } |
6221 | |
42eb665e |
6222 | static int get_cycle_multiplier(void) |
6223 | { |
6224 | return Config.cycle_multiplier_override && Config.cycle_multiplier == CYCLE_MULT_DEFAULT |
6225 | ? Config.cycle_multiplier_override : Config.cycle_multiplier; |
6226 | } |
6227 | |
dc990066 |
6228 | // clear the state completely, instead of just marking |
6229 | // things invalid like invalidate_all_pages() does |
919981d0 |
6230 | void new_dynarec_clear_full(void) |
57871462 |
6231 | { |
57871462 |
6232 | int n; |
2a014d73 |
6233 | out = ndrc->translation_cache; |
35775df7 |
6234 | memset(invalid_code,1,sizeof(invalid_code)); |
dc990066 |
6235 | memset(shadow,0,sizeof(shadow)); |
04714958 |
6236 | hash_table_clear(); |
6237 | mini_ht_clear(); |
57871462 |
6238 | copy=shadow; |
93c0345b |
6239 | expirep = EXPIRITY_OFFSET; |
57871462 |
6240 | pending_exception=0; |
6241 | literalcount=0; |
57871462 |
6242 | stop_after_jal=0; |
9be4ba64 |
6243 | inv_code_start=inv_code_end=~0; |
7f94b097 |
6244 | hack_addr=0; |
39b71d9a |
6245 | f1_hack=0; |
93c0345b |
6246 | for (n = 0; n < ARRAY_SIZE(blocks); n++) |
6247 | blocks_clear(&blocks[n]); |
b7ad2f2c |
6248 | for (n = 0; n < ARRAY_SIZE(jumps); n++) { |
6249 | free(jumps[n]); |
6250 | jumps[n] = NULL; |
6251 | } |
104df9d3 |
6252 | stat_clear(stat_blocks); |
6253 | stat_clear(stat_links); |
32631e6a |
6254 | |
42eb665e |
6255 | if (cycle_multiplier_old != Config.cycle_multiplier |
6256 | || new_dynarec_hacks_old != new_dynarec_hacks) |
6257 | { |
6258 | SysPrintf("ndrc config: mul=%d, ha=%x, pex=%d\n", |
6259 | get_cycle_multiplier(), new_dynarec_hacks, Config.PreciseExceptions); |
6260 | } |
d5aeda23 |
6261 | cycle_multiplier_old = Config.cycle_multiplier; |
32631e6a |
6262 | new_dynarec_hacks_old = new_dynarec_hacks; |
dc990066 |
6263 | } |
6264 | |
919981d0 |
6265 | void new_dynarec_init(void) |
dc990066 |
6266 | { |
66ea165f |
6267 | SysPrintf("Init new dynarec, ndrc size %x\n", (int)sizeof(*ndrc)); |
1e212a25 |
6268 | |
0aeb0cb9 |
6269 | #ifdef _3DS |
6270 | check_rosalina(); |
6271 | #endif |
2a014d73 |
6272 | #ifdef BASE_ADDR_DYNAMIC |
1e212a25 |
6273 | #ifdef VITA |
0aeb0cb9 |
6274 | sceBlock = getVMBlock(); //sceKernelAllocMemBlockForVM("code", sizeof(*ndrc)); |
66ea165f |
6275 | if (sceBlock <= 0) |
6276 | SysPrintf("sceKernelAllocMemBlockForVM failed: %x\n", sceBlock); |
2a014d73 |
6277 | int ret = sceKernelGetMemBlockBase(sceBlock, (void **)&ndrc); |
1e212a25 |
6278 | if (ret < 0) |
66ea165f |
6279 | SysPrintf("sceKernelGetMemBlockBase failed: %x\n", ret); |
0aeb0cb9 |
6280 | sceKernelOpenVMDomain(); |
6281 | sceClibPrintf("translation_cache = 0x%08lx\n ", (long)ndrc->translation_cache); |
6282 | #elif defined(_MSC_VER) |
6283 | ndrc = VirtualAlloc(NULL, sizeof(*ndrc), MEM_COMMIT | MEM_RESERVE, |
6284 | PAGE_EXECUTE_READWRITE); |
3039c914 |
6285 | #elif defined(HAVE_LIBNX) |
6286 | Result rc = jitCreate(&g_jit, sizeof(*ndrc)); |
6287 | if (R_FAILED(rc)) |
6288 | SysPrintf("jitCreate failed: %08x\n", rc); |
6289 | SysPrintf("jitCreate: RX: %p RW: %p type: %d\n", g_jit.rx_addr, g_jit.rw_addr, g_jit.type); |
d9e2b173 |
6290 | jitTransitionToWritable(&g_jit); |
3039c914 |
6291 | ndrc = g_jit.rx_addr; |
6292 | ndrc_write_ofs = (char *)g_jit.rw_addr - (char *)ndrc; |
d9e2b173 |
6293 | memset(NDRC_WRITE_OFFSET(&ndrc->tramp), 0, sizeof(ndrc->tramp)); |
1e212a25 |
6294 | #else |
2a014d73 |
6295 | uintptr_t desired_addr = 0; |
3039c914 |
6296 | int prot = PROT_READ | PROT_WRITE | PROT_EXEC; |
6297 | int flags = MAP_PRIVATE | MAP_ANONYMOUS; |
6298 | int fd = -1; |
2a014d73 |
6299 | #ifdef __ELF__ |
6300 | extern char _end; |
6301 | desired_addr = ((uintptr_t)&_end + 0xffffff) & ~0xffffffl; |
6302 | #endif |
d9e2b173 |
6303 | #ifdef TC_WRITE_OFFSET |
3039c914 |
6304 | // mostly for testing |
6305 | fd = open("/dev/shm/pcsxr", O_CREAT | O_RDWR, 0600); |
6306 | ftruncate(fd, sizeof(*ndrc)); |
6307 | void *mw = mmap(NULL, sizeof(*ndrc), PROT_READ | PROT_WRITE, |
6308 | (flags = MAP_SHARED), fd, 0); |
6309 | assert(mw != MAP_FAILED); |
6310 | prot = PROT_READ | PROT_EXEC; |
6311 | #endif |
6312 | ndrc = mmap((void *)desired_addr, sizeof(*ndrc), prot, flags, fd, 0); |
2a014d73 |
6313 | if (ndrc == MAP_FAILED) { |
d848b60a |
6314 | SysPrintf("mmap() failed: %s\n", strerror(errno)); |
1e212a25 |
6315 | abort(); |
d848b60a |
6316 | } |
d9e2b173 |
6317 | #ifdef TC_WRITE_OFFSET |
3039c914 |
6318 | ndrc_write_ofs = (char *)mw - (char *)ndrc; |
6319 | #endif |
1e212a25 |
6320 | #endif |
6321 | #else |
6322 | #ifndef NO_WRITE_EXEC |
bdeade46 |
6323 | // not all systems allow execute in data segment by default |
761fdd0a |
6324 | // size must be 4K aligned for 3DS? |
6325 | if (mprotect(ndrc, sizeof(*ndrc), |
2a014d73 |
6326 | PROT_READ | PROT_WRITE | PROT_EXEC) != 0) |
d848b60a |
6327 | SysPrintf("mprotect() failed: %s\n", strerror(errno)); |
1e212a25 |
6328 | #endif |
dc990066 |
6329 | #endif |
2a014d73 |
6330 | out = ndrc->translation_cache; |
dc990066 |
6331 | new_dynarec_clear_full(); |
6332 | #ifdef HOST_IMM8 |
6333 | // Copy this into local area so we don't have to put it in every literal pool |
6334 | invc_ptr=invalid_code; |
6335 | #endif |
57871462 |
6336 | arch_init(); |
d848b60a |
6337 | new_dynarec_test(); |
33a1eda1 |
6338 | ram_offset = (uintptr_t)psxM - 0x80000000; |
b105cf4f |
6339 | if (ram_offset!=0) |
c43b5311 |
6340 | SysPrintf("warning: RAM is not directly mapped, performance will suffer\n"); |
398d6924 |
6341 | SysPrintf("Mapped (RAM/scrp/ROM/LUTs/TC):\n"); |
6342 | SysPrintf("%p/%p/%p/%p/%p\n", psxM, psxH, psxR, mem_rtab, out); |
57871462 |
6343 | } |
6344 | |
919981d0 |
6345 | void new_dynarec_cleanup(void) |
57871462 |
6346 | { |
6347 | int n; |
2a014d73 |
6348 | #ifdef BASE_ADDR_DYNAMIC |
1e212a25 |
6349 | #ifdef VITA |
66ea165f |
6350 | // sceBlock is managed by retroarch's bootstrap code |
9c67c98f |
6351 | //sceKernelFreeMemBlock(sceBlock); |
6352 | //sceBlock = -1; |
3039c914 |
6353 | #elif defined(HAVE_LIBNX) |
6354 | jitClose(&g_jit); |
6355 | ndrc = NULL; |
1e212a25 |
6356 | #else |
2a014d73 |
6357 | if (munmap(ndrc, sizeof(*ndrc)) < 0) |
1e212a25 |
6358 | SysPrintf("munmap() failed\n"); |
3039c914 |
6359 | ndrc = NULL; |
bdeade46 |
6360 | #endif |
1e212a25 |
6361 | #endif |
93c0345b |
6362 | for (n = 0; n < ARRAY_SIZE(blocks); n++) |
6363 | blocks_clear(&blocks[n]); |
b7ad2f2c |
6364 | for (n = 0; n < ARRAY_SIZE(jumps); n++) { |
6365 | free(jumps[n]); |
6366 | jumps[n] = NULL; |
6367 | } |
104df9d3 |
6368 | stat_clear(stat_blocks); |
6369 | stat_clear(stat_links); |
ece032e6 |
6370 | new_dynarec_print_stats(); |
57871462 |
6371 | } |
6372 | |
03f55e6b |
6373 | static u_int *get_source_start(u_int addr, u_int *limit) |
57871462 |
6374 | { |
33a1eda1 |
6375 | if (addr < 0x00800000 |
6376 | || (0x80000000 <= addr && addr < 0x80800000) |
6377 | || (0xa0000000 <= addr && addr < 0xa0800000)) |
a3203cf4 |
6378 | { |
03f55e6b |
6379 | // used for BIOS calls mostly? |
33a1eda1 |
6380 | *limit = (addr & 0xa0600000) + 0x00200000; |
6381 | return (u_int *)(psxM + (addr & 0x1fffff)); |
03f55e6b |
6382 | } |
a5539d92 |
6383 | else if ( |
03f55e6b |
6384 | /* (0x9fc00000 <= addr && addr < 0x9fc80000) ||*/ |
a5539d92 |
6385 | (0xbfc00000 <= addr && addr < 0xbfc80000)) |
a3203cf4 |
6386 | { |
6387 | // BIOS. The multiplier should be much higher as it's uncached 8bit mem, |
d5aeda23 |
6388 | // but timings in PCSX are too tied to the interpreter's 2-per-insn assumption |
d62c125a |
6389 | if (!HACK_ENABLED(NDHACK_OVERRIDE_CYCLE_M)) |
24058131 |
6390 | cycle_multiplier_active = 200; |
a3203cf4 |
6391 | |
03f55e6b |
6392 | *limit = (addr & 0xfff00000) | 0x80000; |
01d26796 |
6393 | return (u_int *)((u_char *)psxR + (addr&0x7ffff)); |
03f55e6b |
6394 | } |
581335b0 |
6395 | return NULL; |
03f55e6b |
6396 | } |
6397 | |
6398 | static u_int scan_for_ret(u_int addr) |
6399 | { |
6400 | u_int limit = 0; |
6401 | u_int *mem; |
6402 | |
6403 | mem = get_source_start(addr, &limit); |
6404 | if (mem == NULL) |
6405 | return addr; |
6406 | |
6407 | if (limit > addr + 0x1000) |
6408 | limit = addr + 0x1000; |
6409 | for (; addr < limit; addr += 4, mem++) { |
6410 | if (*mem == 0x03e00008) // jr $ra |
6411 | return addr + 8; |
57871462 |
6412 | } |
581335b0 |
6413 | return addr; |
03f55e6b |
6414 | } |
6415 | |
6416 | struct savestate_block { |
6417 | uint32_t addr; |
6418 | uint32_t regflags; |
6419 | }; |
6420 | |
6421 | static int addr_cmp(const void *p1_, const void *p2_) |
6422 | { |
6423 | const struct savestate_block *p1 = p1_, *p2 = p2_; |
6424 | return p1->addr - p2->addr; |
6425 | } |
6426 | |
6427 | int new_dynarec_save_blocks(void *save, int size) |
6428 | { |
104df9d3 |
6429 | struct savestate_block *sblocks = save; |
6430 | int maxcount = size / sizeof(sblocks[0]); |
03f55e6b |
6431 | struct savestate_block tmp_blocks[1024]; |
104df9d3 |
6432 | struct block_info *block; |
03f55e6b |
6433 | int p, s, d, o, bcnt; |
6434 | u_int addr; |
6435 | |
6436 | o = 0; |
104df9d3 |
6437 | for (p = 0; p < ARRAY_SIZE(blocks); p++) { |
03f55e6b |
6438 | bcnt = 0; |
104df9d3 |
6439 | for (block = blocks[p]; block != NULL; block = block->next) { |
6440 | if (block->is_dirty) |
6441 | continue; |
6442 | tmp_blocks[bcnt].addr = block->start; |
6443 | tmp_blocks[bcnt].regflags = block->reg_sv_flags; |
03f55e6b |
6444 | bcnt++; |
6445 | } |
6446 | if (bcnt < 1) |
6447 | continue; |
6448 | qsort(tmp_blocks, bcnt, sizeof(tmp_blocks[0]), addr_cmp); |
6449 | |
6450 | addr = tmp_blocks[0].addr; |
6451 | for (s = d = 0; s < bcnt; s++) { |
6452 | if (tmp_blocks[s].addr < addr) |
6453 | continue; |
6454 | if (d == 0 || tmp_blocks[d-1].addr != tmp_blocks[s].addr) |
6455 | tmp_blocks[d++] = tmp_blocks[s]; |
6456 | addr = scan_for_ret(tmp_blocks[s].addr); |
6457 | } |
6458 | |
6459 | if (o + d > maxcount) |
6460 | d = maxcount - o; |
104df9d3 |
6461 | memcpy(&sblocks[o], tmp_blocks, d * sizeof(sblocks[0])); |
03f55e6b |
6462 | o += d; |
6463 | } |
6464 | |
104df9d3 |
6465 | return o * sizeof(sblocks[0]); |
03f55e6b |
6466 | } |
6467 | |
6468 | void new_dynarec_load_blocks(const void *save, int size) |
6469 | { |
104df9d3 |
6470 | const struct savestate_block *sblocks = save; |
6471 | int count = size / sizeof(sblocks[0]); |
6472 | struct block_info *block; |
03f55e6b |
6473 | u_int regs_save[32]; |
104df9d3 |
6474 | u_int page; |
03f55e6b |
6475 | uint32_t f; |
6476 | int i, b; |
6477 | |
104df9d3 |
6478 | // restore clean blocks, if any |
6479 | for (page = 0, b = i = 0; page < ARRAY_SIZE(blocks); page++) { |
6480 | for (block = blocks[page]; block != NULL; block = block->next, b++) { |
6481 | if (!block->is_dirty) |
6482 | continue; |
6483 | assert(block->source && block->copy); |
6484 | if (memcmp(block->source, block->copy, block->len)) |
6485 | continue; |
6486 | |
6487 | // see try_restore_block |
6488 | block->is_dirty = 0; |
6489 | mark_invalid_code(block->start, block->len, 0); |
6490 | i++; |
6491 | } |
6492 | } |
6493 | inv_debug("load_blocks: %d/%d clean blocks\n", i, b); |
03f55e6b |
6494 | |
6495 | // change GPRs for speculation to at least partially work.. |
6496 | memcpy(regs_save, &psxRegs.GPR, sizeof(regs_save)); |
6497 | for (i = 1; i < 32; i++) |
6498 | psxRegs.GPR.r[i] = 0x80000000; |
6499 | |
6500 | for (b = 0; b < count; b++) { |
104df9d3 |
6501 | for (f = sblocks[b].regflags, i = 0; f; f >>= 1, i++) { |
03f55e6b |
6502 | if (f & 1) |
6503 | psxRegs.GPR.r[i] = 0x1f800000; |
6504 | } |
6505 | |
104df9d3 |
6506 | ndrc_get_addr_ht(sblocks[b].addr); |
03f55e6b |
6507 | |
104df9d3 |
6508 | for (f = sblocks[b].regflags, i = 0; f; f >>= 1, i++) { |
03f55e6b |
6509 | if (f & 1) |
6510 | psxRegs.GPR.r[i] = 0x80000000; |
6511 | } |
6512 | } |
6513 | |
6514 | memcpy(&psxRegs.GPR, regs_save, sizeof(regs_save)); |
6515 | } |
6516 | |
ece032e6 |
6517 | void new_dynarec_print_stats(void) |
6518 | { |
6519 | #ifdef STAT_PRINT |
104df9d3 |
6520 | printf("cc %3d,%3d,%3d lu%6d,%3d,%3d c%3d inv%3d,%3d tc_offs %zu b %u,%u\n", |
ece032e6 |
6521 | stat_bc_pre, stat_bc_direct, stat_bc_restore, |
104df9d3 |
6522 | stat_ht_lookups, stat_jump_in_lookups, stat_restore_tries, |
6523 | stat_restore_compares, stat_inv_addr_calls, stat_inv_hits, |
6524 | out - ndrc->translation_cache, stat_blocks, stat_links); |
ece032e6 |
6525 | stat_bc_direct = stat_bc_pre = stat_bc_restore = |
104df9d3 |
6526 | stat_ht_lookups = stat_jump_in_lookups = stat_restore_tries = |
6527 | stat_restore_compares = stat_inv_addr_calls = stat_inv_hits = 0; |
ece032e6 |
6528 | #endif |
6529 | } |
6530 | |
de74f599 |
6531 | static void force_intcall(int i) |
6532 | { |
6533 | memset(&dops[i], 0, sizeof(dops[i])); |
6534 | dops[i].itype = INTCALL; |
6535 | dops[i].rs1 = CCREG; |
6536 | dops[i].is_exception = 1; |
6537 | cinfo[i].ba = -1; |
6538 | } |
6539 | |
7f94b097 |
6540 | static int apply_hacks(void) |
24058131 |
6541 | { |
6542 | int i; |
6543 | if (HACK_ENABLED(NDHACK_NO_COMPAT_HACKS)) |
7f94b097 |
6544 | return 0; |
24058131 |
6545 | /* special hack(s) */ |
6546 | for (i = 0; i < slen - 4; i++) |
6547 | { |
6548 | // lui a4, 0xf200; jal <rcnt_read>; addu a0, 2; slti v0, 28224 |
6549 | if (source[i] == 0x3c04f200 && dops[i+1].itype == UJUMP |
6550 | && source[i+2] == 0x34840002 && dops[i+3].opcode == 0x0a |
277718fa |
6551 | && cinfo[i+3].imm == 0x6e40 && dops[i+3].rs1 == 2) |
24058131 |
6552 | { |
6553 | SysPrintf("PE2 hack @%08x\n", start + (i+3)*4); |
6554 | dops[i + 3].itype = NOP; |
6555 | } |
6556 | } |
6557 | i = slen; |
6558 | if (i > 10 && source[i-1] == 0 && source[i-2] == 0x03e00008 |
6559 | && source[i-4] == 0x8fbf0018 && source[i-6] == 0x00c0f809 |
6560 | && dops[i-7].itype == STORE) |
6561 | { |
6562 | i = i-8; |
6563 | if (dops[i].itype == IMM16) |
6564 | i--; |
6565 | // swl r2, 15(r6); swr r2, 12(r6); sw r6, *; jalr r6 |
6566 | if (dops[i].itype == STORELR && dops[i].rs1 == 6 |
6567 | && dops[i-1].itype == STORELR && dops[i-1].rs1 == 6) |
6568 | { |
7f94b097 |
6569 | SysPrintf("F1 hack from %08x, old dst %08x\n", start, hack_addr); |
6570 | f1_hack = 1; |
6571 | return 1; |
24058131 |
6572 | } |
6573 | } |
de74f599 |
6574 | if (Config.HLE) |
6575 | { |
6576 | if (start <= psxRegs.biosBranchCheck && psxRegs.biosBranchCheck < start + i*4) |
6577 | { |
6578 | i = (psxRegs.biosBranchCheck - start) / 4u + 23; |
6579 | if (dops[i].is_jump && !dops[i+1].bt) |
6580 | { |
6581 | force_intcall(i); |
6582 | dops[i+1].is_ds = 0; |
6583 | } |
6584 | } |
6585 | } |
7f94b097 |
6586 | return 0; |
24058131 |
6587 | } |
6588 | |
25427adf |
6589 | static int is_ld_use_hazard(const struct decoded_insn *op_ld, |
6590 | const struct decoded_insn *op) |
03f55e6b |
6591 | { |
25427adf |
6592 | if (op_ld->rt1 == 0 || (op_ld->rt1 != op->rs1 && op_ld->rt1 != op->rs2)) |
6593 | return 0; |
6594 | if (op_ld->itype == LOADLR && op->itype == LOADLR) |
6595 | return op_ld->rt1 == op_ld->rs1; |
6596 | return op->itype != CJUMP && op->itype != SJUMP; |
de6dbc52 |
6597 | } |
57871462 |
6598 | |
de6dbc52 |
6599 | static void disassemble_one(int i, u_int src) |
6600 | { |
6601 | unsigned int type, op, op2, op3; |
a22ccd6a |
6602 | enum ls_width_type ls_type = LS_32; |
7ebfcedf |
6603 | memset(&dops[i], 0, sizeof(dops[i])); |
277718fa |
6604 | memset(&cinfo[i], 0, sizeof(cinfo[i])); |
6605 | cinfo[i].ba = -1; |
6606 | cinfo[i].addr = -1; |
de6dbc52 |
6607 | dops[i].opcode = op = src >> 26; |
277718fa |
6608 | op2 = 0; |
a5cd72d0 |
6609 | type = INTCALL; |
6610 | set_mnemonic(i, "???"); |
57871462 |
6611 | switch(op) |
6612 | { |
a5cd72d0 |
6613 | case 0x00: set_mnemonic(i, "special"); |
de6dbc52 |
6614 | op2 = src & 0x3f; |
57871462 |
6615 | switch(op2) |
6616 | { |
53dc27f6 |
6617 | case 0x00: set_mnemonic(i, "SLL"); type=SHIFTIMM; break; |
6618 | case 0x02: set_mnemonic(i, "SRL"); type=SHIFTIMM; break; |
6619 | case 0x03: set_mnemonic(i, "SRA"); type=SHIFTIMM; break; |
6620 | case 0x04: set_mnemonic(i, "SLLV"); type=SHIFT; break; |
6621 | case 0x06: set_mnemonic(i, "SRLV"); type=SHIFT; break; |
6622 | case 0x07: set_mnemonic(i, "SRAV"); type=SHIFT; break; |
6623 | case 0x08: set_mnemonic(i, "JR"); type=RJUMP; break; |
6624 | case 0x09: set_mnemonic(i, "JALR"); type=RJUMP; break; |
6625 | case 0x0C: set_mnemonic(i, "SYSCALL"); type=SYSCALL; break; |
6626 | case 0x0D: set_mnemonic(i, "BREAK"); type=SYSCALL; break; |
53dc27f6 |
6627 | case 0x10: set_mnemonic(i, "MFHI"); type=MOV; break; |
6628 | case 0x11: set_mnemonic(i, "MTHI"); type=MOV; break; |
6629 | case 0x12: set_mnemonic(i, "MFLO"); type=MOV; break; |
6630 | case 0x13: set_mnemonic(i, "MTLO"); type=MOV; break; |
6631 | case 0x18: set_mnemonic(i, "MULT"); type=MULTDIV; break; |
6632 | case 0x19: set_mnemonic(i, "MULTU"); type=MULTDIV; break; |
6633 | case 0x1A: set_mnemonic(i, "DIV"); type=MULTDIV; break; |
6634 | case 0x1B: set_mnemonic(i, "DIVU"); type=MULTDIV; break; |
6635 | case 0x20: set_mnemonic(i, "ADD"); type=ALU; break; |
6636 | case 0x21: set_mnemonic(i, "ADDU"); type=ALU; break; |
6637 | case 0x22: set_mnemonic(i, "SUB"); type=ALU; break; |
6638 | case 0x23: set_mnemonic(i, "SUBU"); type=ALU; break; |
6639 | case 0x24: set_mnemonic(i, "AND"); type=ALU; break; |
6640 | case 0x25: set_mnemonic(i, "OR"); type=ALU; break; |
6641 | case 0x26: set_mnemonic(i, "XOR"); type=ALU; break; |
6642 | case 0x27: set_mnemonic(i, "NOR"); type=ALU; break; |
6643 | case 0x2A: set_mnemonic(i, "SLT"); type=ALU; break; |
6644 | case 0x2B: set_mnemonic(i, "SLTU"); type=ALU; break; |
57871462 |
6645 | } |
6646 | break; |
a5cd72d0 |
6647 | case 0x01: set_mnemonic(i, "regimm"); |
6648 | type = SJUMP; |
de6dbc52 |
6649 | op2 = (src >> 16) & 0x1f; |
57871462 |
6650 | switch(op2) |
6651 | { |
a5cd72d0 |
6652 | case 0x10: set_mnemonic(i, "BLTZAL"); break; |
6653 | case 0x11: set_mnemonic(i, "BGEZAL"); break; |
6654 | default: |
6655 | if (op2 & 1) |
6656 | set_mnemonic(i, "BGEZ"); |
6657 | else |
6658 | set_mnemonic(i, "BLTZ"); |
57871462 |
6659 | } |
6660 | break; |
53dc27f6 |
6661 | case 0x02: set_mnemonic(i, "J"); type=UJUMP; break; |
6662 | case 0x03: set_mnemonic(i, "JAL"); type=UJUMP; break; |
6663 | case 0x04: set_mnemonic(i, "BEQ"); type=CJUMP; break; |
6664 | case 0x05: set_mnemonic(i, "BNE"); type=CJUMP; break; |
6665 | case 0x06: set_mnemonic(i, "BLEZ"); type=CJUMP; break; |
6666 | case 0x07: set_mnemonic(i, "BGTZ"); type=CJUMP; break; |
6667 | case 0x08: set_mnemonic(i, "ADDI"); type=IMM16; break; |
6668 | case 0x09: set_mnemonic(i, "ADDIU"); type=IMM16; break; |
6669 | case 0x0A: set_mnemonic(i, "SLTI"); type=IMM16; break; |
6670 | case 0x0B: set_mnemonic(i, "SLTIU"); type=IMM16; break; |
6671 | case 0x0C: set_mnemonic(i, "ANDI"); type=IMM16; break; |
6672 | case 0x0D: set_mnemonic(i, "ORI"); type=IMM16; break; |
6673 | case 0x0E: set_mnemonic(i, "XORI"); type=IMM16; break; |
6674 | case 0x0F: set_mnemonic(i, "LUI"); type=IMM16; break; |
a5cd72d0 |
6675 | case 0x10: set_mnemonic(i, "COP0"); |
de6dbc52 |
6676 | op2 = (src >> 21) & 0x1f; |
a5cd72d0 |
6677 | if (op2 & 0x10) { |
de6dbc52 |
6678 | op3 = src & 0x1f; |
a5cd72d0 |
6679 | switch (op3) |
6680 | { |
6681 | case 0x01: case 0x02: case 0x06: case 0x08: type = INTCALL; break; |
6682 | case 0x10: set_mnemonic(i, "RFE"); type=RFE; break; |
6683 | default: type = OTHER; break; |
6684 | } |
6685 | break; |
6686 | } |
57871462 |
6687 | switch(op2) |
6688 | { |
a5cd72d0 |
6689 | u32 rd; |
6690 | case 0x00: |
6691 | set_mnemonic(i, "MFC0"); |
de6dbc52 |
6692 | rd = (src >> 11) & 0x1F; |
a5cd72d0 |
6693 | if (!(0x00000417u & (1u << rd))) |
6694 | type = COP0; |
6695 | break; |
53dc27f6 |
6696 | case 0x04: set_mnemonic(i, "MTC0"); type=COP0; break; |
a5cd72d0 |
6697 | case 0x02: |
6698 | case 0x06: type = INTCALL; break; |
6699 | default: type = OTHER; break; |
57871462 |
6700 | } |
6701 | break; |
a5cd72d0 |
6702 | case 0x11: set_mnemonic(i, "COP1"); |
de6dbc52 |
6703 | op2 = (src >> 21) & 0x1f; |
57871462 |
6704 | break; |
a5cd72d0 |
6705 | case 0x12: set_mnemonic(i, "COP2"); |
de6dbc52 |
6706 | op2 = (src >> 21) & 0x1f; |
a5cd72d0 |
6707 | if (op2 & 0x10) { |
6708 | type = OTHER; |
de6dbc52 |
6709 | if (gte_handlers[src & 0x3f] != NULL) { |
53dc27f6 |
6710 | #ifdef DISASM |
de6dbc52 |
6711 | if (gte_regnames[src & 0x3f] != NULL) |
6712 | strcpy(insn[i], gte_regnames[src & 0x3f]); |
bedfea38 |
6713 | else |
de6dbc52 |
6714 | snprintf(insn[i], sizeof(insn[i]), "COP2 %x", src & 0x3f); |
53dc27f6 |
6715 | #endif |
a5cd72d0 |
6716 | type = C2OP; |
c7abc864 |
6717 | } |
6718 | } |
6719 | else switch(op2) |
b9b61529 |
6720 | { |
53dc27f6 |
6721 | case 0x00: set_mnemonic(i, "MFC2"); type=COP2; break; |
6722 | case 0x02: set_mnemonic(i, "CFC2"); type=COP2; break; |
6723 | case 0x04: set_mnemonic(i, "MTC2"); type=COP2; break; |
6724 | case 0x06: set_mnemonic(i, "CTC2"); type=COP2; break; |
b9b61529 |
6725 | } |
6726 | break; |
a5cd72d0 |
6727 | case 0x13: set_mnemonic(i, "COP3"); |
de6dbc52 |
6728 | op2 = (src >> 21) & 0x1f; |
a5cd72d0 |
6729 | break; |
f9e9616e |
6730 | case 0x20: set_mnemonic(i, "LB"); type=LOAD; ls_type = LS_8; break; |
6731 | case 0x21: set_mnemonic(i, "LH"); type=LOAD; ls_type = LS_16; break; |
6732 | case 0x22: set_mnemonic(i, "LWL"); type=LOADLR; ls_type = LS_LR; break; |
6733 | case 0x23: set_mnemonic(i, "LW"); type=LOAD; ls_type = LS_32; break; |
6734 | case 0x24: set_mnemonic(i, "LBU"); type=LOAD; ls_type = LS_8; break; |
6735 | case 0x25: set_mnemonic(i, "LHU"); type=LOAD; ls_type = LS_16; break; |
6736 | case 0x26: set_mnemonic(i, "LWR"); type=LOADLR; ls_type = LS_LR; break; |
6737 | case 0x28: set_mnemonic(i, "SB"); type=STORE; ls_type = LS_8; break; |
6738 | case 0x29: set_mnemonic(i, "SH"); type=STORE; ls_type = LS_16; break; |
6739 | case 0x2A: set_mnemonic(i, "SWL"); type=STORELR; ls_type = LS_LR; break; |
6740 | case 0x2B: set_mnemonic(i, "SW"); type=STORE; ls_type = LS_32; break; |
6741 | case 0x2E: set_mnemonic(i, "SWR"); type=STORELR; ls_type = LS_LR; break; |
6742 | case 0x32: set_mnemonic(i, "LWC2"); type=C2LS; ls_type = LS_32; break; |
6743 | case 0x3A: set_mnemonic(i, "SWC2"); type=C2LS; ls_type = LS_32; break; |
a5cd72d0 |
6744 | case 0x3B: |
de6dbc52 |
6745 | if (Config.HLE && (src & 0x03ffffff) < ARRAY_SIZE(psxHLEt)) { |
a5cd72d0 |
6746 | set_mnemonic(i, "HLECALL"); |
6747 | type = HLECALL; |
6748 | } |
6749 | break; |
6750 | default: |
90ae6d4e |
6751 | break; |
57871462 |
6752 | } |
a5cd72d0 |
6753 | if (type == INTCALL) |
de6dbc52 |
6754 | SysPrintf("NI %08x @%08x (%08x)\n", src, start + i*4, start); |
f9e9616e |
6755 | dops[i].itype = type; |
6756 | dops[i].opcode2 = op2; |
6757 | dops[i].ls_type = ls_type; |
57871462 |
6758 | /* Get registers/immediates */ |
53dc27f6 |
6759 | dops[i].use_lt1=0; |
bedfea38 |
6760 | gte_rs[i]=gte_rt[i]=0; |
a5cd72d0 |
6761 | dops[i].rs1 = 0; |
6762 | dops[i].rs2 = 0; |
6763 | dops[i].rt1 = 0; |
6764 | dops[i].rt2 = 0; |
57871462 |
6765 | switch(type) { |
6766 | case LOAD: |
de6dbc52 |
6767 | dops[i].rs1 = (src >> 21) & 0x1f; |
6768 | dops[i].rt1 = (src >> 16) & 0x1f; |
6769 | cinfo[i].imm = (short)src; |
57871462 |
6770 | break; |
6771 | case STORE: |
6772 | case STORELR: |
de6dbc52 |
6773 | dops[i].rs1 = (src >> 21) & 0x1f; |
6774 | dops[i].rs2 = (src >> 16) & 0x1f; |
6775 | cinfo[i].imm = (short)src; |
57871462 |
6776 | break; |
6777 | case LOADLR: |
6778 | // LWL/LWR only load part of the register, |
6779 | // therefore the target register must be treated as a source too |
de6dbc52 |
6780 | dops[i].rs1 = (src >> 21) & 0x1f; |
6781 | dops[i].rs2 = (src >> 16) & 0x1f; |
6782 | dops[i].rt1 = (src >> 16) & 0x1f; |
6783 | cinfo[i].imm = (short)src; |
57871462 |
6784 | break; |
6785 | case IMM16: |
cf95b4f0 |
6786 | if (op==0x0f) dops[i].rs1=0; // LUI instruction has no source register |
de6dbc52 |
6787 | else dops[i].rs1 = (src >> 21) & 0x1f; |
6788 | dops[i].rs2 = 0; |
6789 | dops[i].rt1 = (src >> 16) & 0x1f; |
57871462 |
6790 | if(op>=0x0c&&op<=0x0e) { // ANDI/ORI/XORI |
de6dbc52 |
6791 | cinfo[i].imm = (unsigned short)src; |
57871462 |
6792 | }else{ |
de6dbc52 |
6793 | cinfo[i].imm = (short)src; |
57871462 |
6794 | } |
57871462 |
6795 | break; |
6796 | case UJUMP: |
57871462 |
6797 | // The JAL instruction writes to r31. |
6798 | if (op&1) { |
cf95b4f0 |
6799 | dops[i].rt1=31; |
57871462 |
6800 | } |
cf95b4f0 |
6801 | dops[i].rs2=CCREG; |
57871462 |
6802 | break; |
6803 | case RJUMP: |
de6dbc52 |
6804 | dops[i].rs1 = (src >> 21) & 0x1f; |
5067f341 |
6805 | // The JALR instruction writes to rd. |
57871462 |
6806 | if (op2&1) { |
de6dbc52 |
6807 | dops[i].rt1 = (src >> 11) & 0x1f; |
57871462 |
6808 | } |
cf95b4f0 |
6809 | dops[i].rs2=CCREG; |
57871462 |
6810 | break; |
6811 | case CJUMP: |
de6dbc52 |
6812 | dops[i].rs1 = (src >> 21) & 0x1f; |
6813 | dops[i].rs2 = (src >> 16) & 0x1f; |
57871462 |
6814 | if(op&2) { // BGTZ/BLEZ |
cf95b4f0 |
6815 | dops[i].rs2=0; |
57871462 |
6816 | } |
57871462 |
6817 | break; |
6818 | case SJUMP: |
de6dbc52 |
6819 | dops[i].rs1 = (src >> 21) & 0x1f; |
6820 | dops[i].rs2 = CCREG; |
a5cd72d0 |
6821 | if (op2 == 0x10 || op2 == 0x11) { // BxxAL |
6822 | dops[i].rt1 = 31; |
57871462 |
6823 | // NOTE: If the branch is not taken, r31 is still overwritten |
6824 | } |
57871462 |
6825 | break; |
57871462 |
6826 | case ALU: |
de6dbc52 |
6827 | dops[i].rs1=(src>>21)&0x1f; // source |
6828 | dops[i].rs2=(src>>16)&0x1f; // subtract amount |
6829 | dops[i].rt1=(src>>11)&0x1f; // destination |
57871462 |
6830 | break; |
6831 | case MULTDIV: |
de6dbc52 |
6832 | dops[i].rs1=(src>>21)&0x1f; // source |
6833 | dops[i].rs2=(src>>16)&0x1f; // divisor |
cf95b4f0 |
6834 | dops[i].rt1=HIREG; |
6835 | dops[i].rt2=LOREG; |
57871462 |
6836 | break; |
6837 | case MOV: |
cf95b4f0 |
6838 | if(op2==0x10) dops[i].rs1=HIREG; // MFHI |
6839 | if(op2==0x11) dops[i].rt1=HIREG; // MTHI |
6840 | if(op2==0x12) dops[i].rs1=LOREG; // MFLO |
6841 | if(op2==0x13) dops[i].rt1=LOREG; // MTLO |
de6dbc52 |
6842 | if((op2&0x1d)==0x10) dops[i].rt1=(src>>11)&0x1f; // MFxx |
6843 | if((op2&0x1d)==0x11) dops[i].rs1=(src>>21)&0x1f; // MTxx |
57871462 |
6844 | break; |
6845 | case SHIFT: |
de6dbc52 |
6846 | dops[i].rs1=(src>>16)&0x1f; // target of shift |
6847 | dops[i].rs2=(src>>21)&0x1f; // shift amount |
6848 | dops[i].rt1=(src>>11)&0x1f; // destination |
57871462 |
6849 | break; |
6850 | case SHIFTIMM: |
de6dbc52 |
6851 | dops[i].rs1=(src>>16)&0x1f; |
cf95b4f0 |
6852 | dops[i].rs2=0; |
de6dbc52 |
6853 | dops[i].rt1=(src>>11)&0x1f; |
6854 | cinfo[i].imm=(src>>6)&0x1f; |
57871462 |
6855 | break; |
6856 | case COP0: |
de6dbc52 |
6857 | if(op2==0) dops[i].rt1=(src>>16)&0x1F; // MFC0 |
6858 | if(op2==4) dops[i].rs1=(src>>16)&0x1F; // MTC0 |
6859 | if(op2==4&&((src>>11)&0x1e)==12) dops[i].rs2=CCREG; |
57871462 |
6860 | break; |
bedfea38 |
6861 | case COP2: |
de6dbc52 |
6862 | if(op2<3) dops[i].rt1=(src>>16)&0x1F; // MFC2/CFC2 |
6863 | if(op2>3) dops[i].rs1=(src>>16)&0x1F; // MTC2/CTC2 |
6864 | int gr=(src>>11)&0x1F; |
bedfea38 |
6865 | switch(op2) |
6866 | { |
6867 | case 0x00: gte_rs[i]=1ll<<gr; break; // MFC2 |
6868 | case 0x04: gte_rt[i]=1ll<<gr; break; // MTC2 |
0ff8c62c |
6869 | case 0x02: gte_rs[i]=1ll<<(gr+32); break; // CFC2 |
bedfea38 |
6870 | case 0x06: gte_rt[i]=1ll<<(gr+32); break; // CTC2 |
6871 | } |
6872 | break; |
b9b61529 |
6873 | case C2LS: |
de6dbc52 |
6874 | dops[i].rs1=(src>>21)&0x1F; |
6875 | cinfo[i].imm=(short)src; |
6876 | if(op==0x32) gte_rt[i]=1ll<<((src>>16)&0x1F); // LWC2 |
6877 | else gte_rs[i]=1ll<<((src>>16)&0x1F); // SWC2 |
bedfea38 |
6878 | break; |
6879 | case C2OP: |
de6dbc52 |
6880 | gte_rs[i]=gte_reg_reads[src&0x3f]; |
6881 | gte_rt[i]=gte_reg_writes[src&0x3f]; |
2167bef6 |
6882 | gte_rt[i]|=1ll<<63; // every op changes flags |
de6dbc52 |
6883 | if((src&0x3f)==GTE_MVMVA) { |
6884 | int v = (src >> 15) & 3; |
587a5b1c |
6885 | gte_rs[i]&=~0xe3fll; |
6886 | if(v==3) gte_rs[i]|=0xe00ll; |
6887 | else gte_rs[i]|=3ll<<(v*2); |
6888 | } |
b9b61529 |
6889 | break; |
57871462 |
6890 | case SYSCALL: |
7139f3c8 |
6891 | case HLECALL: |
1e973cb0 |
6892 | case INTCALL: |
cf95b4f0 |
6893 | dops[i].rs1=CCREG; |
57871462 |
6894 | break; |
6895 | default: |
a5cd72d0 |
6896 | break; |
57871462 |
6897 | } |
de6dbc52 |
6898 | } |
6899 | |
6900 | static noinline void pass1_disassemble(u_int pagelimit) |
6901 | { |
6902 | int i, j, done = 0, ni_count = 0; |
f9e9616e |
6903 | int ds_next = 0; |
de6dbc52 |
6904 | |
6905 | for (i = 0; !done; i++) |
6906 | { |
6907 | int force_j_to_interpreter = 0; |
6908 | unsigned int type, op, op2; |
6909 | |
6910 | disassemble_one(i, source[i]); |
f9e9616e |
6911 | dops[i].is_ds = ds_next; ds_next = 0; |
de6dbc52 |
6912 | type = dops[i].itype; |
6913 | op = dops[i].opcode; |
6914 | op2 = dops[i].opcode2; |
6915 | |
57871462 |
6916 | /* Calculate branch target addresses */ |
6917 | if(type==UJUMP) |
277718fa |
6918 | cinfo[i].ba=((start+i*4+4)&0xF0000000)|(((unsigned int)source[i]<<6)>>4); |
cf95b4f0 |
6919 | else if(type==CJUMP&&dops[i].rs1==dops[i].rs2&&(op&1)) |
277718fa |
6920 | cinfo[i].ba=start+i*4+8; // Ignore never taken branch |
cf95b4f0 |
6921 | else if(type==SJUMP&&dops[i].rs1==0&&!(op2&1)) |
277718fa |
6922 | cinfo[i].ba=start+i*4+8; // Ignore never taken branch |
ad49de89 |
6923 | else if(type==CJUMP||type==SJUMP) |
277718fa |
6924 | cinfo[i].ba=start+i*4+4+((signed int)((unsigned int)source[i]<<16)>>14); |
4919de1e |
6925 | |
6926 | /* simplify always (not)taken branches */ |
cf95b4f0 |
6927 | if (type == CJUMP && dops[i].rs1 == dops[i].rs2) { |
6928 | dops[i].rs1 = dops[i].rs2 = 0; |
4919de1e |
6929 | if (!(op & 1)) { |
cf95b4f0 |
6930 | dops[i].itype = type = UJUMP; |
6931 | dops[i].rs2 = CCREG; |
4919de1e |
6932 | } |
6933 | } |
cf95b4f0 |
6934 | else if (type == SJUMP && dops[i].rs1 == 0 && (op2 & 1)) |
6935 | dops[i].itype = type = UJUMP; |
4919de1e |
6936 | |
277718fa |
6937 | dops[i].is_jump = type == RJUMP || type == UJUMP || type == CJUMP || type == SJUMP; |
6938 | dops[i].is_ujump = type == RJUMP || type == UJUMP; |
6939 | dops[i].is_load = type == LOAD || type == LOADLR || op == 0x32; // LWC2 |
a5cd72d0 |
6940 | dops[i].is_delay_load = (dops[i].is_load || (source[i] & 0xf3d00000) == 0x40000000); // MFC/CFC |
277718fa |
6941 | dops[i].is_store = type == STORE || type == STORELR || op == 0x3a; // SWC2 |
6942 | dops[i].is_exception = type == SYSCALL || type == HLECALL || type == INTCALL; |
6943 | dops[i].may_except = dops[i].is_exception || (type == ALU && (op2 == 0x20 || op2 == 0x22)) || op == 8; |
f9e9616e |
6944 | ds_next = dops[i].is_jump; |
277718fa |
6945 | |
6946 | if (((op & 0x37) == 0x21 || op == 0x25) // LH/SH/LHU |
6947 | && ((cinfo[i].imm & 1) || Config.PreciseExceptions)) |
6948 | dops[i].may_except = 1; |
6949 | if (((op & 0x37) == 0x23 || (op & 0x37) == 0x32) // LW/SW/LWC2/SWC2 |
6950 | && ((cinfo[i].imm & 3) || Config.PreciseExceptions)) |
6951 | dops[i].may_except = 1; |
fe807a8a |
6952 | |
a5cd72d0 |
6953 | /* rare messy cases to just pass over to the interpreter */ |
fe807a8a |
6954 | if (i > 0 && dops[i-1].is_jump) { |
ecca05e3 |
6955 | j = i - 1; |
3e535354 |
6956 | // branch in delay slot? |
fe807a8a |
6957 | if (dops[i].is_jump) { |
3e535354 |
6958 | // don't handle first branch and call interpreter if it's hit |
a5cd72d0 |
6959 | SysPrintf("branch in DS @%08x (%08x)\n", start + i*4, start); |
ecca05e3 |
6960 | force_j_to_interpreter = 1; |
3e535354 |
6961 | } |
de6dbc52 |
6962 | // load delay detection through a branch |
a5cd72d0 |
6963 | else if (dops[i].is_delay_load && dops[i].rt1 != 0) { |
de6dbc52 |
6964 | const struct decoded_insn *dop = NULL; |
6965 | int t = -1; |
6966 | if (cinfo[i-1].ba != -1) { |
6967 | t = (cinfo[i-1].ba - start) / 4; |
6968 | if (t < 0 || t > i) { |
6969 | u_int limit = 0; |
6970 | u_int *mem = get_source_start(cinfo[i-1].ba, &limit); |
6971 | if (mem != NULL) { |
6972 | disassemble_one(MAXBLOCK - 1, mem[0]); |
6973 | dop = &dops[MAXBLOCK - 1]; |
6974 | } |
6975 | } |
6976 | else |
6977 | dop = &dops[t]; |
6978 | } |
25427adf |
6979 | if ((dop && is_ld_use_hazard(&dops[i], dop)) |
de6dbc52 |
6980 | || (!dop && Config.PreciseExceptions)) { |
3e535354 |
6981 | // jump target wants DS result - potential load delay effect |
a5cd72d0 |
6982 | SysPrintf("load delay in DS @%08x (%08x)\n", start + i*4, start); |
ecca05e3 |
6983 | force_j_to_interpreter = 1; |
de6dbc52 |
6984 | if (0 <= t && t < i) |
6985 | dops[t + 1].bt = 1; // expected return from interpreter |
3e535354 |
6986 | } |
cf95b4f0 |
6987 | else if(i>=2&&dops[i-2].rt1==2&&dops[i].rt1==2&&dops[i].rs1!=2&&dops[i].rs2!=2&&dops[i-1].rs1!=2&&dops[i-1].rs2!=2&& |
fe807a8a |
6988 | !(i>=3&&dops[i-3].is_jump)) { |
3e535354 |
6989 | // v0 overwrite like this is a sign of trouble, bail out |
4149788d |
6990 | SysPrintf("v0 overwrite @%08x (%08x)\n", start + i*4, start); |
ecca05e3 |
6991 | force_j_to_interpreter = 1; |
3e535354 |
6992 | } |
6993 | } |
a5cd72d0 |
6994 | } |
de6dbc52 |
6995 | else if (i > 0 && dops[i-1].is_delay_load |
25427adf |
6996 | && is_ld_use_hazard(&dops[i-1], &dops[i]) |
de6dbc52 |
6997 | && (i < 2 || !dops[i-2].is_ujump)) { |
a5cd72d0 |
6998 | SysPrintf("load delay @%08x (%08x)\n", start + i*4, start); |
ecca05e3 |
6999 | for (j = i - 1; j > 0 && dops[j-1].is_delay_load; j--) |
7000 | if (dops[j-1].rt1 != dops[i-1].rt1) |
7001 | break; |
7002 | force_j_to_interpreter = 1; |
a5cd72d0 |
7003 | } |
ecca05e3 |
7004 | if (force_j_to_interpreter) { |
de6dbc52 |
7005 | force_intcall(j); |
a5cd72d0 |
7006 | done = 2; |
ecca05e3 |
7007 | i = j; // don't compile the problematic branch/load/etc |
3e535354 |
7008 | } |
de6dbc52 |
7009 | if (dops[i].is_exception && i > 0 && dops[i-1].is_jump) { |
7010 | SysPrintf("exception in DS @%08x (%08x)\n", start + i*4, start); |
7011 | i--; |
7012 | force_intcall(i); |
7013 | done = 2; |
7014 | } |
7015 | if (i >= 2 && (source[i-2] & 0xffe0f800) == 0x40806000) // MTC0 $12 |
7016 | dops[i].bt = 1; |
7017 | if (i >= 1 && (source[i-1] & 0xffe0f800) == 0x40806800) // MTC0 $13 |
7018 | dops[i].bt = 1; |
4919de1e |
7019 | |
3e535354 |
7020 | /* Is this the end of the block? */ |
fe807a8a |
7021 | if (i > 0 && dops[i-1].is_ujump) { |
0787af86 |
7022 | if (dops[i-1].rt1 == 0) { // not jal |
277718fa |
7023 | int found_bbranch = 0, t = (cinfo[i-1].ba - start) / 4; |
0787af86 |
7024 | if ((u_int)(t - i) < 64 && start + (t+64)*4 < pagelimit) { |
7025 | // scan for a branch back to i+1 |
7026 | for (j = t; j < t + 64; j++) { |
7027 | int tmpop = source[j] >> 26; |
7028 | if (tmpop == 1 || ((tmpop & ~3) == 4)) { |
7029 | int t2 = j + 1 + (int)(signed short)source[j]; |
7030 | if (t2 == i + 1) { |
7031 | //printf("blk expand %08x<-%08x\n", start + (i+1)*4, start + j*4); |
7032 | found_bbranch = 1; |
7033 | break; |
7034 | } |
7035 | } |
7036 | } |
7037 | } |
7038 | if (!found_bbranch) |
7039 | done = 2; |
57871462 |
7040 | } |
7041 | else { |
7042 | if(stop_after_jal) done=1; |
7043 | // Stop on BREAK |
7044 | if((source[i+1]&0xfc00003f)==0x0d) done=1; |
7045 | } |
7046 | // Don't recompile stuff that's already compiled |
7047 | if(check_addr(start+i*4+4)) done=1; |
7048 | // Don't get too close to the limit |
d3201e39 |
7049 | if (i > MAXBLOCK - 64) |
7050 | done = 1; |
57871462 |
7051 | } |
a5cd72d0 |
7052 | if (dops[i].itype == HLECALL) |
dc4fa8bc |
7053 | done = 1; |
a5cd72d0 |
7054 | else if (dops[i].itype == INTCALL) |
dc4fa8bc |
7055 | done = 2; |
a5cd72d0 |
7056 | else if (dops[i].is_exception) |
d1150cd6 |
7057 | done = stop_after_jal ? 1 : 2; |
7058 | if (done == 2) { |
1e973cb0 |
7059 | // Does the block continue due to a branch? |
7060 | for(j=i-1;j>=0;j--) |
7061 | { |
277718fa |
7062 | if(cinfo[j].ba==start+i*4) done=j=0; // Branch into delay slot |
7063 | if(cinfo[j].ba==start+i*4+4) done=j=0; |
7064 | if(cinfo[j].ba==start+i*4+8) done=j=0; |
1e973cb0 |
7065 | } |
7066 | } |
75dec299 |
7067 | //assert(i<MAXBLOCK-1); |
57871462 |
7068 | if(start+i*4==pagelimit-4) done=1; |
7069 | assert(start+i*4<pagelimit); |
d3201e39 |
7070 | if (i == MAXBLOCK - 2) |
7071 | done = 1; |
57871462 |
7072 | // Stop if we're compiling junk |
a5cd72d0 |
7073 | if (dops[i].itype == INTCALL && (++ni_count > 8 || dops[i].opcode == 0x11)) { |
57871462 |
7074 | done=stop_after_jal=1; |
c43b5311 |
7075 | SysPrintf("Disabled speculative precompilation\n"); |
57871462 |
7076 | } |
7077 | } |
4bdc30ab |
7078 | while (i > 0 && dops[i-1].is_jump) |
7079 | i--; |
7080 | assert(i > 0); |
7081 | assert(!dops[i-1].is_jump); |
7082 | slen = i; |
4149788d |
7083 | } |
7084 | |
7085 | // Basic liveness analysis for MIPS registers |
7086 | static noinline void pass2_unneeded_regs(int istart,int iend,int r) |
7087 | { |
7088 | int i; |
7089 | uint64_t u,gte_u,b,gte_b; |
7090 | uint64_t temp_u,temp_gte_u=0; |
7091 | uint64_t gte_u_unknown=0; |
7092 | if (HACK_ENABLED(NDHACK_GTE_UNNEEDED)) |
7093 | gte_u_unknown=~0ll; |
7094 | if(iend==slen-1) { |
7095 | u=1; |
7096 | gte_u=gte_u_unknown; |
7097 | }else{ |
7098 | //u=unneeded_reg[iend+1]; |
7099 | u=1; |
7100 | gte_u=gte_unneeded[iend+1]; |
7101 | } |
7102 | |
7103 | for (i=iend;i>=istart;i--) |
7104 | { |
7105 | //printf("unneeded registers i=%d (%d,%d) r=%d\n",i,istart,iend,r); |
7106 | if(dops[i].is_jump) |
7107 | { |
7108 | // If subroutine call, flag return address as a possible branch target |
7109 | if(dops[i].rt1==31 && i<slen-2) dops[i+2].bt=1; |
7110 | |
277718fa |
7111 | if(cinfo[i].ba<start || cinfo[i].ba>=(start+slen*4)) |
4149788d |
7112 | { |
7113 | // Branch out of this block, flush all regs |
7114 | u=1; |
7115 | gte_u=gte_u_unknown; |
7116 | branch_unneeded_reg[i]=u; |
7117 | // Merge in delay slot |
7118 | u|=(1LL<<dops[i+1].rt1)|(1LL<<dops[i+1].rt2); |
7119 | u&=~((1LL<<dops[i+1].rs1)|(1LL<<dops[i+1].rs2)); |
7120 | u|=1; |
7121 | gte_u|=gte_rt[i+1]; |
7122 | gte_u&=~gte_rs[i+1]; |
7123 | } |
7124 | else |
7125 | { |
7126 | // Internal branch, flag target |
277718fa |
7127 | dops[(cinfo[i].ba-start)>>2].bt=1; |
7128 | if(cinfo[i].ba<=start+i*4) { |
4149788d |
7129 | // Backward branch |
7130 | if(dops[i].is_ujump) |
7131 | { |
7132 | // Unconditional branch |
7133 | temp_u=1; |
7134 | temp_gte_u=0; |
7135 | } else { |
7136 | // Conditional branch (not taken case) |
7137 | temp_u=unneeded_reg[i+2]; |
7138 | temp_gte_u&=gte_unneeded[i+2]; |
7139 | } |
7140 | // Merge in delay slot |
7141 | temp_u|=(1LL<<dops[i+1].rt1)|(1LL<<dops[i+1].rt2); |
7142 | temp_u&=~((1LL<<dops[i+1].rs1)|(1LL<<dops[i+1].rs2)); |
7143 | temp_u|=1; |
7144 | temp_gte_u|=gte_rt[i+1]; |
7145 | temp_gte_u&=~gte_rs[i+1]; |
7146 | temp_u|=(1LL<<dops[i].rt1)|(1LL<<dops[i].rt2); |
7147 | temp_u&=~((1LL<<dops[i].rs1)|(1LL<<dops[i].rs2)); |
7148 | temp_u|=1; |
7149 | temp_gte_u|=gte_rt[i]; |
7150 | temp_gte_u&=~gte_rs[i]; |
7151 | unneeded_reg[i]=temp_u; |
7152 | gte_unneeded[i]=temp_gte_u; |
7153 | // Only go three levels deep. This recursion can take an |
7154 | // excessive amount of time if there are a lot of nested loops. |
7155 | if(r<2) { |
277718fa |
7156 | pass2_unneeded_regs((cinfo[i].ba-start)>>2,i-1,r+1); |
4149788d |
7157 | }else{ |
277718fa |
7158 | unneeded_reg[(cinfo[i].ba-start)>>2]=1; |
7159 | gte_unneeded[(cinfo[i].ba-start)>>2]=gte_u_unknown; |
4149788d |
7160 | } |
7161 | } /*else*/ if(1) { |
7162 | if (dops[i].is_ujump) |
7163 | { |
7164 | // Unconditional branch |
277718fa |
7165 | u=unneeded_reg[(cinfo[i].ba-start)>>2]; |
7166 | gte_u=gte_unneeded[(cinfo[i].ba-start)>>2]; |
4149788d |
7167 | branch_unneeded_reg[i]=u; |
7168 | // Merge in delay slot |
7169 | u|=(1LL<<dops[i+1].rt1)|(1LL<<dops[i+1].rt2); |
7170 | u&=~((1LL<<dops[i+1].rs1)|(1LL<<dops[i+1].rs2)); |
7171 | u|=1; |
7172 | gte_u|=gte_rt[i+1]; |
7173 | gte_u&=~gte_rs[i+1]; |
7174 | } else { |
7175 | // Conditional branch |
277718fa |
7176 | b=unneeded_reg[(cinfo[i].ba-start)>>2]; |
7177 | gte_b=gte_unneeded[(cinfo[i].ba-start)>>2]; |
4149788d |
7178 | branch_unneeded_reg[i]=b; |
7179 | // Branch delay slot |
7180 | b|=(1LL<<dops[i+1].rt1)|(1LL<<dops[i+1].rt2); |
7181 | b&=~((1LL<<dops[i+1].rs1)|(1LL<<dops[i+1].rs2)); |
7182 | b|=1; |
7183 | gte_b|=gte_rt[i+1]; |
7184 | gte_b&=~gte_rs[i+1]; |
7185 | u&=b; |
7186 | gte_u&=gte_b; |
7187 | if(i<slen-1) { |
7188 | branch_unneeded_reg[i]&=unneeded_reg[i+2]; |
7189 | } else { |
7190 | branch_unneeded_reg[i]=1; |
7191 | } |
7192 | } |
7193 | } |
7194 | } |
7195 | } |
4149788d |
7196 | //u=1; // DEBUG |
7197 | // Written registers are unneeded |
7198 | u|=1LL<<dops[i].rt1; |
7199 | u|=1LL<<dops[i].rt2; |
7200 | gte_u|=gte_rt[i]; |
7201 | // Accessed registers are needed |
7202 | u&=~(1LL<<dops[i].rs1); |
7203 | u&=~(1LL<<dops[i].rs2); |
7204 | gte_u&=~gte_rs[i]; |
7205 | if(gte_rs[i]&&dops[i].rt1&&(unneeded_reg[i+1]&(1ll<<dops[i].rt1))) |
7206 | gte_u|=gte_rs[i]>e_unneeded[i+1]; // MFC2/CFC2 to dead register, unneeded |
90f98e7c |
7207 | if (dops[i].may_except || dops[i].itype == RFE) |
7208 | { |
7209 | // SYSCALL instruction, etc or conditional exception |
7210 | u=1; |
7211 | } |
4149788d |
7212 | // Source-target dependencies |
7213 | // R0 is always unneeded |
7214 | u|=1; |
7215 | // Save it |
7216 | unneeded_reg[i]=u; |
7217 | gte_unneeded[i]=gte_u; |
7218 | /* |
7219 | printf("ur (%d,%d) %x: ",istart,iend,start+i*4); |
7220 | printf("U:"); |
7221 | int r; |
7222 | for(r=1;r<=CCREG;r++) { |
7223 | if((unneeded_reg[i]>>r)&1) { |
7224 | if(r==HIREG) printf(" HI"); |
7225 | else if(r==LOREG) printf(" LO"); |
7226 | else printf(" r%d",r); |
7227 | } |
7228 | } |
7229 | printf("\n"); |
7230 | */ |
7231 | } |
7232 | } |
57871462 |
7233 | |
f9e9616e |
7234 | static noinline void pass2a_unneeded_other(void) |
7235 | { |
7236 | int i, j; |
7237 | for (i = 0; i < slen; i++) |
7238 | { |
7239 | // remove redundant alignment checks |
7240 | if (dops[i].may_except && (dops[i].is_load || dops[i].is_store) |
7241 | && dops[i].rt1 != dops[i].rs1 && !dops[i].is_ds) |
7242 | { |
7243 | int base = dops[i].rs1, lsb = cinfo[i].imm, ls_type = dops[i].ls_type; |
7244 | int mask = ls_type == LS_32 ? 3 : 1; |
7245 | lsb &= mask; |
7246 | for (j = i + 1; j < slen; j++) { |
7247 | if (dops[j].bt || dops[j].is_jump) |
7248 | break; |
7249 | if ((dops[j].is_load || dops[j].is_store) && dops[j].rs1 == base |
7250 | && dops[j].ls_type == ls_type && (cinfo[j].imm & mask) == lsb) |
7251 | dops[j].may_except = 0; |
7252 | if (dops[j].rt1 == base) |
7253 | break; |
7254 | } |
7255 | } |
7256 | } |
7257 | } |
7258 | |
4149788d |
7259 | static noinline void pass3_register_alloc(u_int addr) |
7260 | { |
57871462 |
7261 | struct regstat current; // Current register allocations/status |
6cc8d23c |
7262 | clear_all_regs(current.regmap_entry); |
57871462 |
7263 | clear_all_regs(current.regmap); |
6cc8d23c |
7264 | current.wasdirty = current.dirty = 0; |
7265 | current.u = unneeded_reg[0]; |
7266 | alloc_reg(¤t, 0, CCREG); |
7267 | dirty_reg(¤t, CCREG); |
7268 | current.wasconst = 0; |
7269 | current.isconst = 0; |
7270 | current.loadedconst = 0; |
90f98e7c |
7271 | current.noevict = 0; |
9b495f6e |
7272 | //current.waswritten = 0; |
57871462 |
7273 | int ds=0; |
7274 | int cc=0; |
4149788d |
7275 | int hr; |
7276 | int i, j; |
6ebf4adf |
7277 | |
4149788d |
7278 | if (addr & 1) { |
57871462 |
7279 | // First instruction is delay slot |
7280 | cc=-1; |
cf95b4f0 |
7281 | dops[1].bt=1; |
57871462 |
7282 | ds=1; |
7283 | unneeded_reg[0]=1; |
57871462 |
7284 | } |
9f51b4b9 |
7285 | |
57871462 |
7286 | for(i=0;i<slen;i++) |
7287 | { |
cf95b4f0 |
7288 | if(dops[i].bt) |
57871462 |
7289 | { |
57871462 |
7290 | for(hr=0;hr<HOST_REGS;hr++) |
7291 | { |
7292 | // Is this really necessary? |
7293 | if(current.regmap[hr]==0) current.regmap[hr]=-1; |
7294 | } |
7295 | current.isconst=0; |
9b495f6e |
7296 | //current.waswritten=0; |
57871462 |
7297 | } |
24385cae |
7298 | |
57871462 |
7299 | memcpy(regmap_pre[i],current.regmap,sizeof(current.regmap)); |
7300 | regs[i].wasconst=current.isconst; |
57871462 |
7301 | regs[i].wasdirty=current.dirty; |
6cc8d23c |
7302 | regs[i].dirty=0; |
7303 | regs[i].u=0; |
7304 | regs[i].isconst=0; |
8575a877 |
7305 | regs[i].loadedconst=0; |
fe807a8a |
7306 | if (!dops[i].is_jump) { |
57871462 |
7307 | if(i+1<slen) { |
cf95b4f0 |
7308 | current.u=unneeded_reg[i+1]&~((1LL<<dops[i].rs1)|(1LL<<dops[i].rs2)); |
57871462 |
7309 | current.u|=1; |
57871462 |
7310 | } else { |
7311 | current.u=1; |
57871462 |
7312 | } |
7313 | } else { |
7314 | if(i+1<slen) { |
cf95b4f0 |
7315 | current.u=branch_unneeded_reg[i]&~((1LL<<dops[i+1].rs1)|(1LL<<dops[i+1].rs2)); |
7316 | current.u&=~((1LL<<dops[i].rs1)|(1LL<<dops[i].rs2)); |
57871462 |
7317 | current.u|=1; |
7ebfcedf |
7318 | } else { |
7319 | SysPrintf("oops, branch at end of block with no delay slot @%08x\n", start + i*4); |
7320 | abort(); |
7321 | } |
57871462 |
7322 | } |
f9e9616e |
7323 | assert(dops[i].is_ds == ds); |
57871462 |
7324 | if(ds) { |
7325 | ds=0; // Skip delay slot, already allocated as part of branch |
7326 | // ...but we need to alloc it in case something jumps here |
7327 | if(i+1<slen) { |
7328 | current.u=branch_unneeded_reg[i-1]&unneeded_reg[i+1]; |
57871462 |
7329 | }else{ |
7330 | current.u=branch_unneeded_reg[i-1]; |
57871462 |
7331 | } |
cf95b4f0 |
7332 | current.u&=~((1LL<<dops[i].rs1)|(1LL<<dops[i].rs2)); |
57871462 |
7333 | current.u|=1; |
57871462 |
7334 | struct regstat temp; |
7335 | memcpy(&temp,¤t,sizeof(current)); |
7336 | temp.wasdirty=temp.dirty; |
57871462 |
7337 | // TODO: Take into account unconditional branches, as below |
7338 | delayslot_alloc(&temp,i); |
7339 | memcpy(regs[i].regmap,temp.regmap,sizeof(temp.regmap)); |
7340 | regs[i].wasdirty=temp.wasdirty; |
57871462 |
7341 | regs[i].dirty=temp.dirty; |
57871462 |
7342 | regs[i].isconst=0; |
7343 | regs[i].wasconst=0; |
7344 | current.isconst=0; |
7345 | // Create entry (branch target) regmap |
7346 | for(hr=0;hr<HOST_REGS;hr++) |
7347 | { |
7348 | int r=temp.regmap[hr]; |
7349 | if(r>=0) { |
7350 | if(r!=regmap_pre[i][hr]) { |
7351 | regs[i].regmap_entry[hr]=-1; |
7352 | } |
7353 | else |
7354 | { |
7c3a5182 |
7355 | assert(r < 64); |
57871462 |
7356 | if((current.u>>r)&1) { |
7357 | regs[i].regmap_entry[hr]=-1; |
7358 | regs[i].regmap[hr]=-1; |
7359 | //Don't clear regs in the delay slot as the branch might need them |
7360 | //current.regmap[hr]=-1; |
7361 | }else |
7362 | regs[i].regmap_entry[hr]=r; |
57871462 |
7363 | } |
7364 | } else { |
7365 | // First instruction expects CCREG to be allocated |
9f51b4b9 |
7366 | if(i==0&&hr==HOST_CCREG) |
57871462 |
7367 | regs[i].regmap_entry[hr]=CCREG; |
7368 | else |
7369 | regs[i].regmap_entry[hr]=-1; |
7370 | } |
7371 | } |
7372 | } |
7373 | else { // Not delay slot |
90f98e7c |
7374 | current.noevict = 0; |
cf95b4f0 |
7375 | switch(dops[i].itype) { |
57871462 |
7376 | case UJUMP: |
7377 | //current.isconst=0; // DEBUG |
7378 | //current.wasconst=0; // DEBUG |
7379 | //regs[i].wasconst=0; // DEBUG |
cf95b4f0 |
7380 | clear_const(¤t,dops[i].rt1); |
57871462 |
7381 | alloc_cc(¤t,i); |
7382 | dirty_reg(¤t,CCREG); |
cf95b4f0 |
7383 | if (dops[i].rt1==31) { |
57871462 |
7384 | alloc_reg(¤t,i,31); |
7385 | dirty_reg(¤t,31); |
cf95b4f0 |
7386 | //assert(dops[i+1].rs1!=31&&dops[i+1].rs2!=31); |
7387 | //assert(dops[i+1].rt1!=dops[i].rt1); |
57871462 |
7388 | #ifdef REG_PREFETCH |
7389 | alloc_reg(¤t,i,PTEMP); |
7390 | #endif |
57871462 |
7391 | } |
cf95b4f0 |
7392 | dops[i].ooo=1; |
269bb29a |
7393 | delayslot_alloc(¤t,i+1); |
57871462 |
7394 | //current.isconst=0; // DEBUG |
7395 | ds=1; |
57871462 |
7396 | break; |
7397 | case RJUMP: |
7398 | //current.isconst=0; |
7399 | //current.wasconst=0; |
7400 | //regs[i].wasconst=0; |
cf95b4f0 |
7401 | clear_const(¤t,dops[i].rs1); |
7402 | clear_const(¤t,dops[i].rt1); |
57871462 |
7403 | alloc_cc(¤t,i); |
7404 | dirty_reg(¤t,CCREG); |
4919de1e |
7405 | if (!ds_writes_rjump_rs(i)) { |
cf95b4f0 |
7406 | alloc_reg(¤t,i,dops[i].rs1); |
7407 | if (dops[i].rt1!=0) { |
7408 | alloc_reg(¤t,i,dops[i].rt1); |
7409 | dirty_reg(¤t,dops[i].rt1); |
57871462 |
7410 | #ifdef REG_PREFETCH |
7411 | alloc_reg(¤t,i,PTEMP); |
7412 | #endif |
7413 | } |
7414 | #ifdef USE_MINI_HT |
cf95b4f0 |
7415 | if(dops[i].rs1==31) { // JALR |
57871462 |
7416 | alloc_reg(¤t,i,RHASH); |
57871462 |
7417 | alloc_reg(¤t,i,RHTBL); |
57871462 |
7418 | } |
7419 | #endif |
7420 | delayslot_alloc(¤t,i+1); |
7421 | } else { |
7422 | // The delay slot overwrites our source register, |
7423 | // allocate a temporary register to hold the old value. |
7424 | current.isconst=0; |
7425 | current.wasconst=0; |
7426 | regs[i].wasconst=0; |
7427 | delayslot_alloc(¤t,i+1); |
7428 | current.isconst=0; |
7429 | alloc_reg(¤t,i,RTEMP); |
7430 | } |
7431 | //current.isconst=0; // DEBUG |
cf95b4f0 |
7432 | dops[i].ooo=1; |
57871462 |
7433 | ds=1; |
7434 | break; |
7435 | case CJUMP: |
7436 | //current.isconst=0; |
7437 | //current.wasconst=0; |
7438 | //regs[i].wasconst=0; |
cf95b4f0 |
7439 | clear_const(¤t,dops[i].rs1); |
7440 | clear_const(¤t,dops[i].rs2); |
7441 | if((dops[i].opcode&0x3E)==4) // BEQ/BNE |
57871462 |
7442 | { |
7443 | alloc_cc(¤t,i); |
7444 | dirty_reg(¤t,CCREG); |
cf95b4f0 |
7445 | if(dops[i].rs1) alloc_reg(¤t,i,dops[i].rs1); |
7446 | if(dops[i].rs2) alloc_reg(¤t,i,dops[i].rs2); |
7447 | if((dops[i].rs1&&(dops[i].rs1==dops[i+1].rt1||dops[i].rs1==dops[i+1].rt2))|| |
7448 | (dops[i].rs2&&(dops[i].rs2==dops[i+1].rt1||dops[i].rs2==dops[i+1].rt2))) { |
57871462 |
7449 | // The delay slot overwrites one of our conditions. |
7450 | // Allocate the branch condition registers instead. |
57871462 |
7451 | current.isconst=0; |
7452 | current.wasconst=0; |
7453 | regs[i].wasconst=0; |
cf95b4f0 |
7454 | if(dops[i].rs1) alloc_reg(¤t,i,dops[i].rs1); |
7455 | if(dops[i].rs2) alloc_reg(¤t,i,dops[i].rs2); |
57871462 |
7456 | } |
e1190b87 |
7457 | else |
7458 | { |
cf95b4f0 |
7459 | dops[i].ooo=1; |
e1190b87 |
7460 | delayslot_alloc(¤t,i+1); |
7461 | } |
57871462 |
7462 | } |
7463 | else |
cf95b4f0 |
7464 | if((dops[i].opcode&0x3E)==6) // BLEZ/BGTZ |
57871462 |
7465 | { |
7466 | alloc_cc(¤t,i); |
7467 | dirty_reg(¤t,CCREG); |
cf95b4f0 |
7468 | alloc_reg(¤t,i,dops[i].rs1); |
7469 | if(dops[i].rs1&&(dops[i].rs1==dops[i+1].rt1||dops[i].rs1==dops[i+1].rt2)) { |
57871462 |
7470 | // The delay slot overwrites one of our conditions. |
7471 | // Allocate the branch condition registers instead. |
57871462 |
7472 | current.isconst=0; |
7473 | current.wasconst=0; |
7474 | regs[i].wasconst=0; |
cf95b4f0 |
7475 | if(dops[i].rs1) alloc_reg(¤t,i,dops[i].rs1); |
57871462 |
7476 | } |
e1190b87 |
7477 | else |
7478 | { |
cf95b4f0 |
7479 | dops[i].ooo=1; |
e1190b87 |
7480 | delayslot_alloc(¤t,i+1); |
7481 | } |
57871462 |
7482 | } |
7483 | else |
7484 | // Don't alloc the delay slot yet because we might not execute it |
cf95b4f0 |
7485 | if((dops[i].opcode&0x3E)==0x14) // BEQL/BNEL |
57871462 |
7486 | { |
7487 | current.isconst=0; |
7488 | current.wasconst=0; |
7489 | regs[i].wasconst=0; |
7490 | alloc_cc(¤t,i); |
7491 | dirty_reg(¤t,CCREG); |
cf95b4f0 |
7492 | alloc_reg(¤t,i,dops[i].rs1); |
7493 | alloc_reg(¤t,i,dops[i].rs2); |
57871462 |
7494 | } |
7495 | else |
cf95b4f0 |
7496 | if((dops[i].opcode&0x3E)==0x16) // BLEZL/BGTZL |
57871462 |
7497 | { |
7498 | current.isconst=0; |
7499 | current.wasconst=0; |
7500 | regs[i].wasconst=0; |
7501 | alloc_cc(¤t,i); |
7502 | dirty_reg(¤t,CCREG); |
cf95b4f0 |
7503 | alloc_reg(¤t,i,dops[i].rs1); |
57871462 |
7504 | } |
7505 | ds=1; |
7506 | //current.isconst=0; |
7507 | break; |
7508 | case SJUMP: |
cf95b4f0 |
7509 | clear_const(¤t,dops[i].rs1); |
7510 | clear_const(¤t,dops[i].rt1); |
57871462 |
7511 | { |
7512 | alloc_cc(¤t,i); |
7513 | dirty_reg(¤t,CCREG); |
cf95b4f0 |
7514 | alloc_reg(¤t,i,dops[i].rs1); |
ecca05e3 |
7515 | if (dops[i].rt1 == 31) { // BLTZAL/BGEZAL |
57871462 |
7516 | alloc_reg(¤t,i,31); |
7517 | dirty_reg(¤t,31); |
57871462 |
7518 | } |
ecca05e3 |
7519 | if ((dops[i].rs1 && |
7520 | (dops[i].rs1==dops[i+1].rt1||dops[i].rs1==dops[i+1].rt2)) // The delay slot overwrites the branch condition. |
7521 | ||(dops[i].rt1 == 31 && dops[i].rs1 == 31) // overwrites it's own condition |
cf95b4f0 |
7522 | ||(dops[i].rt1==31&&(dops[i+1].rs1==31||dops[i+1].rs2==31||dops[i+1].rt1==31||dops[i+1].rt2==31))) { // DS touches $ra |
57871462 |
7523 | // Allocate the branch condition registers instead. |
57871462 |
7524 | current.isconst=0; |
7525 | current.wasconst=0; |
7526 | regs[i].wasconst=0; |
cf95b4f0 |
7527 | if(dops[i].rs1) alloc_reg(¤t,i,dops[i].rs1); |
57871462 |
7528 | } |
e1190b87 |
7529 | else |
7530 | { |
cf95b4f0 |
7531 | dops[i].ooo=1; |
e1190b87 |
7532 | delayslot_alloc(¤t,i+1); |
7533 | } |
57871462 |
7534 | } |
57871462 |
7535 | ds=1; |
7536 | //current.isconst=0; |
7537 | break; |
57871462 |
7538 | case IMM16: |
7539 | imm16_alloc(¤t,i); |
7540 | break; |
7541 | case LOAD: |
7542 | case LOADLR: |
7543 | load_alloc(¤t,i); |
7544 | break; |
7545 | case STORE: |
7546 | case STORELR: |
7547 | store_alloc(¤t,i); |
7548 | break; |
7549 | case ALU: |
7550 | alu_alloc(¤t,i); |
7551 | break; |
7552 | case SHIFT: |
7553 | shift_alloc(¤t,i); |
7554 | break; |
7555 | case MULTDIV: |
7556 | multdiv_alloc(¤t,i); |
7557 | break; |
7558 | case SHIFTIMM: |
7559 | shiftimm_alloc(¤t,i); |
7560 | break; |
7561 | case MOV: |
7562 | mov_alloc(¤t,i); |
7563 | break; |
7564 | case COP0: |
7565 | cop0_alloc(¤t,i); |
7566 | break; |
a5cd72d0 |
7567 | case RFE: |
7568 | rfe_alloc(¤t,i); |
81dbbf4c |
7569 | break; |
b9b61529 |
7570 | case COP2: |
81dbbf4c |
7571 | cop2_alloc(¤t,i); |
57871462 |
7572 | break; |
b9b61529 |
7573 | case C2LS: |
7574 | c2ls_alloc(¤t,i); |
7575 | break; |
7576 | case C2OP: |
7577 | c2op_alloc(¤t,i); |
7578 | break; |
57871462 |
7579 | case SYSCALL: |
7139f3c8 |
7580 | case HLECALL: |
1e973cb0 |
7581 | case INTCALL: |
57871462 |
7582 | syscall_alloc(¤t,i); |
7583 | break; |
57871462 |
7584 | } |
9f51b4b9 |
7585 | |
57871462 |
7586 | // Create entry (branch target) regmap |
7587 | for(hr=0;hr<HOST_REGS;hr++) |
7588 | { |
581335b0 |
7589 | int r,or; |
57871462 |
7590 | r=current.regmap[hr]; |
7591 | if(r>=0) { |
7592 | if(r!=regmap_pre[i][hr]) { |
7593 | // TODO: delay slot (?) |
7594 | or=get_reg(regmap_pre[i],r); // Get old mapping for this register |
9de8a0c3 |
7595 | if(or<0||r>=TEMPREG){ |
57871462 |
7596 | regs[i].regmap_entry[hr]=-1; |
7597 | } |
7598 | else |
7599 | { |
7600 | // Just move it to a different register |
7601 | regs[i].regmap_entry[hr]=r; |
7602 | // If it was dirty before, it's still dirty |
9de8a0c3 |
7603 | if((regs[i].wasdirty>>or)&1) dirty_reg(¤t,r); |
57871462 |
7604 | } |
7605 | } |
7606 | else |
7607 | { |
7608 | // Unneeded |
7609 | if(r==0){ |
7610 | regs[i].regmap_entry[hr]=0; |
7611 | } |
7612 | else |
7c3a5182 |
7613 | { |
7614 | assert(r<64); |
57871462 |
7615 | if((current.u>>r)&1) { |
7616 | regs[i].regmap_entry[hr]=-1; |
7617 | //regs[i].regmap[hr]=-1; |
7618 | current.regmap[hr]=-1; |
7619 | }else |
7620 | regs[i].regmap_entry[hr]=r; |
7621 | } |
57871462 |
7622 | } |
7623 | } else { |
7624 | // Branches expect CCREG to be allocated at the target |
9f51b4b9 |
7625 | if(regmap_pre[i][hr]==CCREG) |
57871462 |
7626 | regs[i].regmap_entry[hr]=CCREG; |
7627 | else |
7628 | regs[i].regmap_entry[hr]=-1; |
7629 | } |
7630 | } |
7631 | memcpy(regs[i].regmap,current.regmap,sizeof(current.regmap)); |
7632 | } |
27727b63 |
7633 | |
9b495f6e |
7634 | #if 0 // see do_store_smc_check() |
277718fa |
7635 | if(i>0&&(dops[i-1].itype==STORE||dops[i-1].itype==STORELR||(dops[i-1].itype==C2LS&&dops[i-1].opcode==0x3a))&&(u_int)cinfo[i-1].imm<0x800) |
cf95b4f0 |
7636 | current.waswritten|=1<<dops[i-1].rs1; |
7637 | current.waswritten&=~(1<<dops[i].rt1); |
7638 | current.waswritten&=~(1<<dops[i].rt2); |
277718fa |
7639 | if((dops[i].itype==STORE||dops[i].itype==STORELR||(dops[i].itype==C2LS&&dops[i].opcode==0x3a))&&(u_int)cinfo[i].imm>=0x800) |
cf95b4f0 |
7640 | current.waswritten&=~(1<<dops[i].rs1); |
9b495f6e |
7641 | #endif |
27727b63 |
7642 | |
57871462 |
7643 | /* Branch post-alloc */ |
7644 | if(i>0) |
7645 | { |
57871462 |
7646 | current.wasdirty=current.dirty; |
cf95b4f0 |
7647 | switch(dops[i-1].itype) { |
57871462 |
7648 | case UJUMP: |
7649 | memcpy(&branch_regs[i-1],¤t,sizeof(current)); |
7650 | branch_regs[i-1].isconst=0; |
7651 | branch_regs[i-1].wasconst=0; |
cf95b4f0 |
7652 | branch_regs[i-1].u=branch_unneeded_reg[i-1]&~((1LL<<dops[i-1].rs1)|(1LL<<dops[i-1].rs2)); |
57871462 |
7653 | alloc_cc(&branch_regs[i-1],i-1); |
7654 | dirty_reg(&branch_regs[i-1],CCREG); |
cf95b4f0 |
7655 | if(dops[i-1].rt1==31) { // JAL |
57871462 |
7656 | alloc_reg(&branch_regs[i-1],i-1,31); |
7657 | dirty_reg(&branch_regs[i-1],31); |
57871462 |
7658 | } |
7659 | memcpy(&branch_regs[i-1].regmap_entry,&branch_regs[i-1].regmap,sizeof(current.regmap)); |
40fca85b |
7660 | memcpy(constmap[i],constmap[i-1],sizeof(constmap[i])); |
57871462 |
7661 | break; |
7662 | case RJUMP: |
7663 | memcpy(&branch_regs[i-1],¤t,sizeof(current)); |
7664 | branch_regs[i-1].isconst=0; |
7665 | branch_regs[i-1].wasconst=0; |
cf95b4f0 |
7666 | branch_regs[i-1].u=branch_unneeded_reg[i-1]&~((1LL<<dops[i-1].rs1)|(1LL<<dops[i-1].rs2)); |
57871462 |
7667 | alloc_cc(&branch_regs[i-1],i-1); |
7668 | dirty_reg(&branch_regs[i-1],CCREG); |
cf95b4f0 |
7669 | alloc_reg(&branch_regs[i-1],i-1,dops[i-1].rs1); |
7670 | if(dops[i-1].rt1!=0) { // JALR |
7671 | alloc_reg(&branch_regs[i-1],i-1,dops[i-1].rt1); |
7672 | dirty_reg(&branch_regs[i-1],dops[i-1].rt1); |
57871462 |
7673 | } |
7674 | #ifdef USE_MINI_HT |
cf95b4f0 |
7675 | if(dops[i-1].rs1==31) { // JALR |
57871462 |
7676 | alloc_reg(&branch_regs[i-1],i-1,RHASH); |
57871462 |
7677 | alloc_reg(&branch_regs[i-1],i-1,RHTBL); |
57871462 |
7678 | } |
7679 | #endif |
7680 | memcpy(&branch_regs[i-1].regmap_entry,&branch_regs[i-1].regmap,sizeof(current.regmap)); |
40fca85b |
7681 | memcpy(constmap[i],constmap[i-1],sizeof(constmap[i])); |
57871462 |
7682 | break; |
7683 | case CJUMP: |
cf95b4f0 |
7684 | if((dops[i-1].opcode&0x3E)==4) // BEQ/BNE |
57871462 |
7685 | { |
7686 | alloc_cc(¤t,i-1); |
7687 | dirty_reg(¤t,CCREG); |
cf95b4f0 |
7688 | if((dops[i-1].rs1&&(dops[i-1].rs1==dops[i].rt1||dops[i-1].rs1==dops[i].rt2))|| |
7689 | (dops[i-1].rs2&&(dops[i-1].rs2==dops[i].rt1||dops[i-1].rs2==dops[i].rt2))) { |
57871462 |
7690 | // The delay slot overwrote one of our conditions |
7691 | // Delay slot goes after the test (in order) |
cf95b4f0 |
7692 | current.u=branch_unneeded_reg[i-1]&~((1LL<<dops[i].rs1)|(1LL<<dops[i].rs2)); |
57871462 |
7693 | current.u|=1; |
57871462 |
7694 | delayslot_alloc(¤t,i); |
7695 | current.isconst=0; |
7696 | } |
7697 | else |
7698 | { |
cf95b4f0 |
7699 | current.u=branch_unneeded_reg[i-1]&~((1LL<<dops[i-1].rs1)|(1LL<<dops[i-1].rs2)); |
57871462 |
7700 | // Alloc the branch condition registers |
cf95b4f0 |
7701 | if(dops[i-1].rs1) alloc_reg(¤t,i-1,dops[i-1].rs1); |
7702 | if(dops[i-1].rs2) alloc_reg(¤t,i-1,dops[i-1].rs2); |
57871462 |
7703 | } |
7704 | memcpy(&branch_regs[i-1],¤t,sizeof(current)); |
7705 | branch_regs[i-1].isconst=0; |
7706 | branch_regs[i-1].wasconst=0; |
7707 | memcpy(&branch_regs[i-1].regmap_entry,¤t.regmap,sizeof(current.regmap)); |
40fca85b |
7708 | memcpy(constmap[i],constmap[i-1],sizeof(constmap[i])); |
57871462 |
7709 | } |
7710 | else |
cf95b4f0 |
7711 | if((dops[i-1].opcode&0x3E)==6) // BLEZ/BGTZ |
57871462 |
7712 | { |
7713 | alloc_cc(¤t,i-1); |
7714 | dirty_reg(¤t,CCREG); |
cf95b4f0 |
7715 | if(dops[i-1].rs1==dops[i].rt1||dops[i-1].rs1==dops[i].rt2) { |
57871462 |
7716 | // The delay slot overwrote the branch condition |
7717 | // Delay slot goes after the test (in order) |
cf95b4f0 |
7718 | current.u=branch_unneeded_reg[i-1]&~((1LL<<dops[i].rs1)|(1LL<<dops[i].rs2)); |
57871462 |
7719 | current.u|=1; |
57871462 |
7720 | delayslot_alloc(¤t,i); |
7721 | current.isconst=0; |
7722 | } |
7723 | else |
7724 | { |
cf95b4f0 |
7725 | current.u=branch_unneeded_reg[i-1]&~(1LL<<dops[i-1].rs1); |
57871462 |
7726 | // Alloc the branch condition register |
cf95b4f0 |
7727 | alloc_reg(¤t,i-1,dops[i-1].rs1); |
57871462 |
7728 | } |
7729 | memcpy(&branch_regs[i-1],¤t,sizeof(current)); |
7730 | branch_regs[i-1].isconst=0; |
7731 | branch_regs[i-1].wasconst=0; |
7732 | memcpy(&branch_regs[i-1].regmap_entry,¤t.regmap,sizeof(current.regmap)); |
40fca85b |
7733 | memcpy(constmap[i],constmap[i-1],sizeof(constmap[i])); |
57871462 |
7734 | } |
57871462 |
7735 | break; |
7736 | case SJUMP: |
57871462 |
7737 | { |
7738 | alloc_cc(¤t,i-1); |
7739 | dirty_reg(¤t,CCREG); |
cf95b4f0 |
7740 | if(dops[i-1].rs1==dops[i].rt1||dops[i-1].rs1==dops[i].rt2) { |
57871462 |
7741 | // The delay slot overwrote the branch condition |
7742 | // Delay slot goes after the test (in order) |
cf95b4f0 |
7743 | current.u=branch_unneeded_reg[i-1]&~((1LL<<dops[i].rs1)|(1LL<<dops[i].rs2)); |
57871462 |
7744 | current.u|=1; |
57871462 |
7745 | delayslot_alloc(¤t,i); |
7746 | current.isconst=0; |
7747 | } |
7748 | else |
7749 | { |
cf95b4f0 |
7750 | current.u=branch_unneeded_reg[i-1]&~(1LL<<dops[i-1].rs1); |
57871462 |
7751 | // Alloc the branch condition register |
cf95b4f0 |
7752 | alloc_reg(¤t,i-1,dops[i-1].rs1); |
57871462 |
7753 | } |
7754 | memcpy(&branch_regs[i-1],¤t,sizeof(current)); |
7755 | branch_regs[i-1].isconst=0; |
7756 | branch_regs[i-1].wasconst=0; |
7757 | memcpy(&branch_regs[i-1].regmap_entry,¤t.regmap,sizeof(current.regmap)); |
40fca85b |
7758 | memcpy(constmap[i],constmap[i-1],sizeof(constmap[i])); |
57871462 |
7759 | } |
57871462 |
7760 | break; |
57871462 |
7761 | } |
7762 | |
fe807a8a |
7763 | if (dops[i-1].is_ujump) |
57871462 |
7764 | { |
cf95b4f0 |
7765 | if(dops[i-1].rt1==31) // JAL/JALR |
57871462 |
7766 | { |
7767 | // Subroutine call will return here, don't alloc any registers |
57871462 |
7768 | current.dirty=0; |
7769 | clear_all_regs(current.regmap); |
7770 | alloc_reg(¤t,i,CCREG); |
7771 | dirty_reg(¤t,CCREG); |
7772 | } |
7773 | else if(i+1<slen) |
7774 | { |
7775 | // Internal branch will jump here, match registers to caller |
57871462 |
7776 | current.dirty=0; |
7777 | clear_all_regs(current.regmap); |
7778 | alloc_reg(¤t,i,CCREG); |
7779 | dirty_reg(¤t,CCREG); |
7780 | for(j=i-1;j>=0;j--) |
7781 | { |
277718fa |
7782 | if(cinfo[j].ba==start+i*4+4) { |
57871462 |
7783 | memcpy(current.regmap,branch_regs[j].regmap,sizeof(current.regmap)); |
57871462 |
7784 | current.dirty=branch_regs[j].dirty; |
7785 | break; |
7786 | } |
7787 | } |
7788 | while(j>=0) { |
277718fa |
7789 | if(cinfo[j].ba==start+i*4+4) { |
57871462 |
7790 | for(hr=0;hr<HOST_REGS;hr++) { |
7791 | if(current.regmap[hr]!=branch_regs[j].regmap[hr]) { |
7792 | current.regmap[hr]=-1; |
7793 | } |
57871462 |
7794 | current.dirty&=branch_regs[j].dirty; |
7795 | } |
7796 | } |
7797 | j--; |
7798 | } |
7799 | } |
7800 | } |
7801 | } |
7802 | |
7803 | // Count cycles in between branches |
277718fa |
7804 | cinfo[i].ccadj = CLOCK_ADJUST(cc); |
a5cd72d0 |
7805 | if (i > 0 && (dops[i-1].is_jump || dops[i].is_exception)) |
57871462 |
7806 | { |
7807 | cc=0; |
7808 | } |
71e490c5 |
7809 | #if !defined(DRC_DBG) |
cf95b4f0 |
7810 | else if(dops[i].itype==C2OP&>e_cycletab[source[i]&0x3f]>2) |
054175e9 |
7811 | { |
81dbbf4c |
7812 | // this should really be removed since the real stalls have been implemented, |
7813 | // but doing so causes sizeable perf regression against the older version |
7814 | u_int gtec = gte_cycletab[source[i] & 0x3f]; |
32631e6a |
7815 | cc += HACK_ENABLED(NDHACK_NO_STALLS) ? gtec/2 : 2; |
fb407447 |
7816 | } |
cf95b4f0 |
7817 | else if(i>1&&dops[i].itype==STORE&&dops[i-1].itype==STORE&&dops[i-2].itype==STORE&&!dops[i].bt) |
5fdcbb5a |
7818 | { |
7819 | cc+=4; |
7820 | } |
cf95b4f0 |
7821 | else if(dops[i].itype==C2LS) |
fb407447 |
7822 | { |
81dbbf4c |
7823 | // same as with C2OP |
32631e6a |
7824 | cc += HACK_ENABLED(NDHACK_NO_STALLS) ? 4 : 2; |
fb407447 |
7825 | } |
7826 | #endif |
57871462 |
7827 | else |
7828 | { |
7829 | cc++; |
7830 | } |
7831 | |
cf95b4f0 |
7832 | if(!dops[i].is_ds) { |
57871462 |
7833 | regs[i].dirty=current.dirty; |
7834 | regs[i].isconst=current.isconst; |
40fca85b |
7835 | memcpy(constmap[i],current_constmap,sizeof(constmap[i])); |
57871462 |
7836 | } |
7837 | for(hr=0;hr<HOST_REGS;hr++) { |
7838 | if(hr!=EXCLUDE_REG&®s[i].regmap[hr]>=0) { |
7839 | if(regmap_pre[i][hr]!=regs[i].regmap[hr]) { |
7840 | regs[i].wasconst&=~(1<<hr); |
7841 | } |
7842 | } |
7843 | } |
9b495f6e |
7844 | //regs[i].waswritten=current.waswritten; |
57871462 |
7845 | } |
4149788d |
7846 | } |
9f51b4b9 |
7847 | |
4149788d |
7848 | static noinline void pass4_cull_unused_regs(void) |
7849 | { |
53358c1d |
7850 | u_int last_needed_regs[4] = {0,0,0,0}; |
4149788d |
7851 | u_int nr=0; |
7852 | int i; |
9f51b4b9 |
7853 | |
57871462 |
7854 | for (i=slen-1;i>=0;i--) |
7855 | { |
7856 | int hr; |
53358c1d |
7857 | __builtin_prefetch(regs[i-2].regmap); |
fe807a8a |
7858 | if(dops[i].is_jump) |
57871462 |
7859 | { |
277718fa |
7860 | if(cinfo[i].ba<start || cinfo[i].ba>=(start+slen*4)) |
57871462 |
7861 | { |
7862 | // Branch out of this block, don't need anything |
7863 | nr=0; |
7864 | } |
7865 | else |
7866 | { |
7867 | // Internal branch |
7868 | // Need whatever matches the target |
7869 | nr=0; |
277718fa |
7870 | int t=(cinfo[i].ba-start)>>2; |
57871462 |
7871 | for(hr=0;hr<HOST_REGS;hr++) |
7872 | { |
7873 | if(regs[i].regmap_entry[hr]>=0) { |
7874 | if(regs[i].regmap_entry[hr]==regs[t].regmap_entry[hr]) nr|=1<<hr; |
7875 | } |
7876 | } |
7877 | } |
7878 | // Conditional branch may need registers for following instructions |
fe807a8a |
7879 | if (!dops[i].is_ujump) |
57871462 |
7880 | { |
7881 | if(i<slen-2) { |
53358c1d |
7882 | nr |= last_needed_regs[(i+2) & 3]; |
57871462 |
7883 | for(hr=0;hr<HOST_REGS;hr++) |
7884 | { |
7885 | if(regmap_pre[i+2][hr]>=0&&get_reg(regs[i+2].regmap_entry,regmap_pre[i+2][hr])<0) nr&=~(1<<hr); |
7886 | //if((regmap_entry[i+2][hr])>=0) if(!((nr>>hr)&1)) printf("%x-bogus(%d=%d)\n",start+i*4,hr,regmap_entry[i+2][hr]); |
7887 | } |
7888 | } |
7889 | } |
7890 | // Don't need stuff which is overwritten |
f5955059 |
7891 | //if(regs[i].regmap[hr]!=regmap_pre[i][hr]) nr&=~(1<<hr); |
7892 | //if(regs[i].regmap[hr]<0) nr&=~(1<<hr); |
57871462 |
7893 | // Merge in delay slot |
53358c1d |
7894 | if (dops[i+1].rt1) nr &= ~get_regm(regs[i].regmap, dops[i+1].rt1); |
7895 | if (dops[i+1].rt2) nr &= ~get_regm(regs[i].regmap, dops[i+1].rt2); |
7896 | nr |= get_regm(regmap_pre[i], dops[i+1].rs1); |
7897 | nr |= get_regm(regmap_pre[i], dops[i+1].rs2); |
7898 | nr |= get_regm(regs[i].regmap_entry, dops[i+1].rs1); |
7899 | nr |= get_regm(regs[i].regmap_entry, dops[i+1].rs2); |
7900 | if (ram_offset && (dops[i+1].is_load || dops[i+1].is_store)) { |
7901 | nr |= get_regm(regmap_pre[i], ROREG); |
7902 | nr |= get_regm(regs[i].regmap_entry, ROREG); |
7903 | } |
7904 | if (dops[i+1].is_store) { |
7905 | nr |= get_regm(regmap_pre[i], INVCP); |
7906 | nr |= get_regm(regs[i].regmap_entry, INVCP); |
57871462 |
7907 | } |
7908 | } |
277718fa |
7909 | else if (dops[i].is_exception) |
57871462 |
7910 | { |
277718fa |
7911 | // SYSCALL instruction, etc |
57871462 |
7912 | nr=0; |
7913 | } |
7914 | else // Non-branch |
7915 | { |
7916 | if(i<slen-1) { |
7917 | for(hr=0;hr<HOST_REGS;hr++) { |
7918 | if(regmap_pre[i+1][hr]>=0&&get_reg(regs[i+1].regmap_entry,regmap_pre[i+1][hr])<0) nr&=~(1<<hr); |
7919 | if(regs[i].regmap[hr]!=regmap_pre[i+1][hr]) nr&=~(1<<hr); |
7920 | if(regs[i].regmap[hr]!=regmap_pre[i][hr]) nr&=~(1<<hr); |
7921 | if(regs[i].regmap[hr]<0) nr&=~(1<<hr); |
7922 | } |
7923 | } |
7924 | } |
53358c1d |
7925 | // Overwritten registers are not needed |
7926 | if (dops[i].rt1) nr &= ~get_regm(regs[i].regmap, dops[i].rt1); |
7927 | if (dops[i].rt2) nr &= ~get_regm(regs[i].regmap, dops[i].rt2); |
7928 | nr &= ~get_regm(regs[i].regmap, FTEMP); |
7929 | // Source registers are needed |
7930 | nr |= get_regm(regmap_pre[i], dops[i].rs1); |
7931 | nr |= get_regm(regmap_pre[i], dops[i].rs2); |
7932 | nr |= get_regm(regs[i].regmap_entry, dops[i].rs1); |
7933 | nr |= get_regm(regs[i].regmap_entry, dops[i].rs2); |
7934 | if (ram_offset && (dops[i].is_load || dops[i].is_store)) { |
7935 | nr |= get_regm(regmap_pre[i], ROREG); |
7936 | nr |= get_regm(regs[i].regmap_entry, ROREG); |
7937 | } |
7938 | if (dops[i].is_store) { |
7939 | nr |= get_regm(regmap_pre[i], INVCP); |
7940 | nr |= get_regm(regs[i].regmap_entry, INVCP); |
7941 | } |
7942 | |
7943 | if (i > 0 && !dops[i].bt && regs[i].wasdirty) |
57871462 |
7944 | for(hr=0;hr<HOST_REGS;hr++) |
7945 | { |
57871462 |
7946 | // Don't store a register immediately after writing it, |
7947 | // may prevent dual-issue. |
7948 | // But do so if this is a branch target, otherwise we |
7949 | // might have to load the register before the branch. |
53358c1d |
7950 | if((regs[i].wasdirty>>hr)&1) { |
7c3a5182 |
7951 | if((regmap_pre[i][hr]>0&&!((unneeded_reg[i]>>regmap_pre[i][hr])&1))) { |
9de8a0c3 |
7952 | if(dops[i-1].rt1==regmap_pre[i][hr]) nr|=1<<hr; |
7953 | if(dops[i-1].rt2==regmap_pre[i][hr]) nr|=1<<hr; |
57871462 |
7954 | } |
7c3a5182 |
7955 | if((regs[i].regmap_entry[hr]>0&&!((unneeded_reg[i]>>regs[i].regmap_entry[hr])&1))) { |
9de8a0c3 |
7956 | if(dops[i-1].rt1==regs[i].regmap_entry[hr]) nr|=1<<hr; |
7957 | if(dops[i-1].rt2==regs[i].regmap_entry[hr]) nr|=1<<hr; |
57871462 |
7958 | } |
7959 | } |
7960 | } |
7961 | // Cycle count is needed at branches. Assume it is needed at the target too. |
de6dbc52 |
7962 | if (i == 0 || dops[i].bt || dops[i].may_except || dops[i].itype == CJUMP) { |
57871462 |
7963 | if(regmap_pre[i][HOST_CCREG]==CCREG) nr|=1<<HOST_CCREG; |
7964 | if(regs[i].regmap_entry[HOST_CCREG]==CCREG) nr|=1<<HOST_CCREG; |
7965 | } |
7966 | // Save it |
53358c1d |
7967 | last_needed_regs[i & 3] = nr; |
9f51b4b9 |
7968 | |
57871462 |
7969 | // Deallocate unneeded registers |
7970 | for(hr=0;hr<HOST_REGS;hr++) |
7971 | { |
7972 | if(!((nr>>hr)&1)) { |
7973 | if(regs[i].regmap_entry[hr]!=CCREG) regs[i].regmap_entry[hr]=-1; |
fe807a8a |
7974 | if(dops[i].is_jump) |
57871462 |
7975 | { |
37387d8b |
7976 | int map1 = 0, map2 = 0, temp = 0; // or -1 ?? |
7977 | if (dops[i+1].is_load || dops[i+1].is_store) |
7978 | map1 = ROREG; |
7979 | if (dops[i+1].is_store) |
7980 | map2 = INVCP; |
7981 | if(dops[i+1].itype==LOADLR || dops[i+1].itype==STORELR || dops[i+1].itype==C2LS) |
7982 | temp = FTEMP; |
9de8a0c3 |
7983 | if(regs[i].regmap[hr]!=dops[i].rs1 && regs[i].regmap[hr]!=dops[i].rs2 && |
7984 | regs[i].regmap[hr]!=dops[i].rt1 && regs[i].regmap[hr]!=dops[i].rt2 && |
7985 | regs[i].regmap[hr]!=dops[i+1].rt1 && regs[i].regmap[hr]!=dops[i+1].rt2 && |
cf95b4f0 |
7986 | regs[i].regmap[hr]!=dops[i+1].rs1 && regs[i].regmap[hr]!=dops[i+1].rs2 && |
9de8a0c3 |
7987 | regs[i].regmap[hr]!=temp && regs[i].regmap[hr]!=PTEMP && |
57871462 |
7988 | regs[i].regmap[hr]!=RHASH && regs[i].regmap[hr]!=RHTBL && |
7989 | regs[i].regmap[hr]!=RTEMP && regs[i].regmap[hr]!=CCREG && |
37387d8b |
7990 | regs[i].regmap[hr]!=map1 && regs[i].regmap[hr]!=map2) |
57871462 |
7991 | { |
7992 | regs[i].regmap[hr]=-1; |
7993 | regs[i].isconst&=~(1<<hr); |
a550c61c |
7994 | regs[i].dirty&=~(1<<hr); |
7995 | regs[i+1].wasdirty&=~(1<<hr); |
9de8a0c3 |
7996 | if(branch_regs[i].regmap[hr]!=dops[i].rs1 && branch_regs[i].regmap[hr]!=dops[i].rs2 && |
7997 | branch_regs[i].regmap[hr]!=dops[i].rt1 && branch_regs[i].regmap[hr]!=dops[i].rt2 && |
7998 | branch_regs[i].regmap[hr]!=dops[i+1].rt1 && branch_regs[i].regmap[hr]!=dops[i+1].rt2 && |
cf95b4f0 |
7999 | branch_regs[i].regmap[hr]!=dops[i+1].rs1 && branch_regs[i].regmap[hr]!=dops[i+1].rs2 && |
9de8a0c3 |
8000 | branch_regs[i].regmap[hr]!=temp && branch_regs[i].regmap[hr]!=PTEMP && |
57871462 |
8001 | branch_regs[i].regmap[hr]!=RHASH && branch_regs[i].regmap[hr]!=RHTBL && |
8002 | branch_regs[i].regmap[hr]!=RTEMP && branch_regs[i].regmap[hr]!=CCREG && |
37387d8b |
8003 | branch_regs[i].regmap[hr]!=map1 && branch_regs[i].regmap[hr]!=map2) |
57871462 |
8004 | { |
8005 | branch_regs[i].regmap[hr]=-1; |
8006 | branch_regs[i].regmap_entry[hr]=-1; |
fe807a8a |
8007 | if (!dops[i].is_ujump) |
57871462 |
8008 | { |
fe807a8a |
8009 | if (i < slen-2) { |
57871462 |
8010 | regmap_pre[i+2][hr]=-1; |
79c75f1b |
8011 | regs[i+2].wasconst&=~(1<<hr); |
57871462 |
8012 | } |
8013 | } |
8014 | } |
8015 | } |
8016 | } |
8017 | else |
8018 | { |
8019 | // Non-branch |
8020 | if(i>0) |
8021 | { |
37387d8b |
8022 | int map1 = -1, map2 = -1, temp=-1; |
8023 | if (dops[i].is_load || dops[i].is_store) |
8024 | map1 = ROREG; |
8025 | if (dops[i].is_store) |
8026 | map2 = INVCP; |
8027 | if (dops[i].itype==LOADLR || dops[i].itype==STORELR || dops[i].itype==C2LS) |
8028 | temp = FTEMP; |
9de8a0c3 |
8029 | if(regs[i].regmap[hr]!=dops[i].rt1 && regs[i].regmap[hr]!=dops[i].rt2 && |
cf95b4f0 |
8030 | regs[i].regmap[hr]!=dops[i].rs1 && regs[i].regmap[hr]!=dops[i].rs2 && |
9de8a0c3 |
8031 | regs[i].regmap[hr]!=temp && regs[i].regmap[hr]!=map1 && regs[i].regmap[hr]!=map2 && |
4b1c7cd1 |
8032 | //(dops[i].itype!=SPAN||regs[i].regmap[hr]!=CCREG) |
8033 | regs[i].regmap[hr] != CCREG) |
57871462 |
8034 | { |
cf95b4f0 |
8035 | if(i<slen-1&&!dops[i].is_ds) { |
ad49de89 |
8036 | assert(regs[i].regmap[hr]<64); |
afec9d44 |
8037 | if(regmap_pre[i+1][hr]!=-1 || regs[i].regmap[hr]>0) |
57871462 |
8038 | if(regmap_pre[i+1][hr]!=regs[i].regmap[hr]) |
57871462 |
8039 | { |
c43b5311 |
8040 | SysPrintf("fail: %x (%d %d!=%d)\n",start+i*4,hr,regmap_pre[i+1][hr],regs[i].regmap[hr]); |
57871462 |
8041 | assert(regmap_pre[i+1][hr]==regs[i].regmap[hr]); |
8042 | } |
8043 | regmap_pre[i+1][hr]=-1; |
8044 | if(regs[i+1].regmap_entry[hr]==CCREG) regs[i+1].regmap_entry[hr]=-1; |
79c75f1b |
8045 | regs[i+1].wasconst&=~(1<<hr); |
57871462 |
8046 | } |
8047 | regs[i].regmap[hr]=-1; |
8048 | regs[i].isconst&=~(1<<hr); |
a550c61c |
8049 | regs[i].dirty&=~(1<<hr); |
8050 | regs[i+1].wasdirty&=~(1<<hr); |
57871462 |
8051 | } |
8052 | } |
8053 | } |
3968e69e |
8054 | } // if needed |
8055 | } // for hr |
57871462 |
8056 | } |
4149788d |
8057 | } |
9f51b4b9 |
8058 | |
4149788d |
8059 | // If a register is allocated during a loop, try to allocate it for the |
8060 | // entire loop, if possible. This avoids loading/storing registers |
8061 | // inside of the loop. |
8062 | static noinline void pass5a_preallocate1(void) |
8063 | { |
8064 | int i, j, hr; |
57871462 |
8065 | signed char f_regmap[HOST_REGS]; |
8066 | clear_all_regs(f_regmap); |
8067 | for(i=0;i<slen-1;i++) |
8068 | { |
cf95b4f0 |
8069 | if(dops[i].itype==UJUMP||dops[i].itype==CJUMP||dops[i].itype==SJUMP) |
57871462 |
8070 | { |
277718fa |
8071 | if(cinfo[i].ba>=start && cinfo[i].ba<(start+i*4)) |
cf95b4f0 |
8072 | if(dops[i+1].itype==NOP||dops[i+1].itype==MOV||dops[i+1].itype==ALU |
8073 | ||dops[i+1].itype==SHIFTIMM||dops[i+1].itype==IMM16||dops[i+1].itype==LOAD |
a5cd72d0 |
8074 | ||dops[i+1].itype==STORE||dops[i+1].itype==STORELR |
8075 | ||dops[i+1].itype==SHIFT |
cf95b4f0 |
8076 | ||dops[i+1].itype==COP2||dops[i+1].itype==C2LS||dops[i+1].itype==C2OP) |
57871462 |
8077 | { |
277718fa |
8078 | int t=(cinfo[i].ba-start)>>2; |
fe807a8a |
8079 | if(t > 0 && !dops[t-1].is_jump) // loop_preload can't handle jumps into delay slots |
cf95b4f0 |
8080 | if(t<2||(dops[t-2].itype!=UJUMP&&dops[t-2].itype!=RJUMP)||dops[t-2].rt1!=31) // call/ret assumes no registers allocated |
57871462 |
8081 | for(hr=0;hr<HOST_REGS;hr++) |
8082 | { |
7c3a5182 |
8083 | if(regs[i].regmap[hr]>=0) { |
b372a952 |
8084 | if(f_regmap[hr]!=regs[i].regmap[hr]) { |
8085 | // dealloc old register |
8086 | int n; |
8087 | for(n=0;n<HOST_REGS;n++) |
8088 | { |
8089 | if(f_regmap[n]==regs[i].regmap[hr]) {f_regmap[n]=-1;} |
8090 | } |
8091 | // and alloc new one |
8092 | f_regmap[hr]=regs[i].regmap[hr]; |
8093 | } |
8094 | } |
7c3a5182 |
8095 | if(branch_regs[i].regmap[hr]>=0) { |
b372a952 |
8096 | if(f_regmap[hr]!=branch_regs[i].regmap[hr]) { |
8097 | // dealloc old register |
8098 | int n; |
8099 | for(n=0;n<HOST_REGS;n++) |
8100 | { |
8101 | if(f_regmap[n]==branch_regs[i].regmap[hr]) {f_regmap[n]=-1;} |
8102 | } |
8103 | // and alloc new one |
8104 | f_regmap[hr]=branch_regs[i].regmap[hr]; |
8105 | } |
8106 | } |
cf95b4f0 |
8107 | if(dops[i].ooo) { |
277718fa |
8108 | if(count_free_regs(regs[i].regmap)<=cinfo[i+1].min_free_regs) |
e1190b87 |
8109 | f_regmap[hr]=branch_regs[i].regmap[hr]; |
8110 | }else{ |
277718fa |
8111 | if(count_free_regs(branch_regs[i].regmap)<=cinfo[i+1].min_free_regs) |
57871462 |
8112 | f_regmap[hr]=branch_regs[i].regmap[hr]; |
8113 | } |
8114 | // Avoid dirty->clean transition |
e1190b87 |
8115 | #ifdef DESTRUCTIVE_WRITEBACK |
57871462 |
8116 | if(t>0) if(get_reg(regmap_pre[t],f_regmap[hr])>=0) if((regs[t].wasdirty>>get_reg(regmap_pre[t],f_regmap[hr]))&1) f_regmap[hr]=-1; |
e1190b87 |
8117 | #endif |
8118 | // This check is only strictly required in the DESTRUCTIVE_WRITEBACK |
8119 | // case above, however it's always a good idea. We can't hoist the |
8120 | // load if the register was already allocated, so there's no point |
8121 | // wasting time analyzing most of these cases. It only "succeeds" |
8122 | // when the mapping was different and the load can be replaced with |
8123 | // a mov, which is of negligible benefit. So such cases are |
8124 | // skipped below. |
57871462 |
8125 | if(f_regmap[hr]>0) { |
198df76f |
8126 | if(regs[t].regmap[hr]==f_regmap[hr]||(regs[t].regmap_entry[hr]<0&&get_reg(regmap_pre[t],f_regmap[hr])<0)) { |
57871462 |
8127 | int r=f_regmap[hr]; |
8128 | for(j=t;j<=i;j++) |
8129 | { |
277718fa |
8130 | //printf("Test %x -> %x, %x %d/%d\n",start+i*4,cinfo[i].ba,start+j*4,hr,r); |
57871462 |
8131 | if(r<34&&((unneeded_reg[j]>>r)&1)) break; |
00fa9369 |
8132 | assert(r < 64); |
9de8a0c3 |
8133 | if(regs[j].regmap[hr]==f_regmap[hr]&&f_regmap[hr]<TEMPREG) { |
277718fa |
8134 | //printf("Hit %x -> %x, %x %d/%d\n",start+i*4,cinfo[i].ba,start+j*4,hr,r); |
57871462 |
8135 | int k; |
8136 | if(regs[i].regmap[hr]==-1&&branch_regs[i].regmap[hr]==-1) { |
670c0f22 |
8137 | if(get_reg(regs[i].regmap,f_regmap[hr])>=0) break; |
57871462 |
8138 | if(get_reg(regs[i+2].regmap,f_regmap[hr])>=0) break; |
57871462 |
8139 | k=i; |
8140 | while(k>1&®s[k-1].regmap[hr]==-1) { |
277718fa |
8141 | if(count_free_regs(regs[k-1].regmap)<=cinfo[k-1].min_free_regs) { |
e1190b87 |
8142 | //printf("no free regs for store %x\n",start+(k-1)*4); |
8143 | break; |
57871462 |
8144 | } |
57871462 |
8145 | if(get_reg(regs[k-1].regmap,f_regmap[hr])>=0) { |
8146 | //printf("no-match due to different register\n"); |
8147 | break; |
8148 | } |
fe807a8a |
8149 | if (dops[k-2].is_jump) { |
57871462 |
8150 | //printf("no-match due to branch\n"); |
8151 | break; |
8152 | } |
8153 | // call/ret fast path assumes no registers allocated |
cf95b4f0 |
8154 | if(k>2&&(dops[k-3].itype==UJUMP||dops[k-3].itype==RJUMP)&&dops[k-3].rt1==31) { |
57871462 |
8155 | break; |
8156 | } |
57871462 |
8157 | k--; |
8158 | } |
57871462 |
8159 | if(regs[k-1].regmap[hr]==f_regmap[hr]&®map_pre[k][hr]==f_regmap[hr]) { |
8160 | //printf("Extend r%d, %x ->\n",hr,start+k*4); |
8161 | while(k<i) { |
8162 | regs[k].regmap_entry[hr]=f_regmap[hr]; |
8163 | regs[k].regmap[hr]=f_regmap[hr]; |
8164 | regmap_pre[k+1][hr]=f_regmap[hr]; |
8165 | regs[k].wasdirty&=~(1<<hr); |
8166 | regs[k].dirty&=~(1<<hr); |
8167 | regs[k].wasdirty|=(1<<hr)®s[k-1].dirty; |
8168 | regs[k].dirty|=(1<<hr)®s[k].wasdirty; |
8169 | regs[k].wasconst&=~(1<<hr); |
8170 | regs[k].isconst&=~(1<<hr); |
8171 | k++; |
8172 | } |
8173 | } |
8174 | else { |
8175 | //printf("Fail Extend r%d, %x ->\n",hr,start+k*4); |
8176 | break; |
8177 | } |
8178 | assert(regs[i-1].regmap[hr]==f_regmap[hr]); |
8179 | if(regs[i-1].regmap[hr]==f_regmap[hr]&®map_pre[i][hr]==f_regmap[hr]) { |
8180 | //printf("OK fill %x (r%d)\n",start+i*4,hr); |
8181 | regs[i].regmap_entry[hr]=f_regmap[hr]; |
8182 | regs[i].regmap[hr]=f_regmap[hr]; |
8183 | regs[i].wasdirty&=~(1<<hr); |
8184 | regs[i].dirty&=~(1<<hr); |
8185 | regs[i].wasdirty|=(1<<hr)®s[i-1].dirty; |
8186 | regs[i].dirty|=(1<<hr)®s[i-1].dirty; |
8187 | regs[i].wasconst&=~(1<<hr); |
8188 | regs[i].isconst&=~(1<<hr); |
8189 | branch_regs[i].regmap_entry[hr]=f_regmap[hr]; |
8190 | branch_regs[i].wasdirty&=~(1<<hr); |
8191 | branch_regs[i].wasdirty|=(1<<hr)®s[i].dirty; |
8192 | branch_regs[i].regmap[hr]=f_regmap[hr]; |
8193 | branch_regs[i].dirty&=~(1<<hr); |
8194 | branch_regs[i].dirty|=(1<<hr)®s[i].dirty; |
8195 | branch_regs[i].wasconst&=~(1<<hr); |
8196 | branch_regs[i].isconst&=~(1<<hr); |
fe807a8a |
8197 | if (!dops[i].is_ujump) { |
57871462 |
8198 | regmap_pre[i+2][hr]=f_regmap[hr]; |
8199 | regs[i+2].wasdirty&=~(1<<hr); |
8200 | regs[i+2].wasdirty|=(1<<hr)®s[i].dirty; |
57871462 |
8201 | } |
8202 | } |
8203 | } |
8204 | for(k=t;k<j;k++) { |
e1190b87 |
8205 | // Alloc register clean at beginning of loop, |
8206 | // but may dirty it in pass 6 |
57871462 |
8207 | regs[k].regmap_entry[hr]=f_regmap[hr]; |
8208 | regs[k].regmap[hr]=f_regmap[hr]; |
57871462 |
8209 | regs[k].dirty&=~(1<<hr); |
8210 | regs[k].wasconst&=~(1<<hr); |
8211 | regs[k].isconst&=~(1<<hr); |
fe807a8a |
8212 | if (dops[k].is_jump) { |
e1190b87 |
8213 | branch_regs[k].regmap_entry[hr]=f_regmap[hr]; |
8214 | branch_regs[k].regmap[hr]=f_regmap[hr]; |
8215 | branch_regs[k].dirty&=~(1<<hr); |
8216 | branch_regs[k].wasconst&=~(1<<hr); |
8217 | branch_regs[k].isconst&=~(1<<hr); |
fe807a8a |
8218 | if (!dops[k].is_ujump) { |
e1190b87 |
8219 | regmap_pre[k+2][hr]=f_regmap[hr]; |
8220 | regs[k+2].wasdirty&=~(1<<hr); |
e1190b87 |
8221 | } |
8222 | } |
8223 | else |
8224 | { |
8225 | regmap_pre[k+1][hr]=f_regmap[hr]; |
8226 | regs[k+1].wasdirty&=~(1<<hr); |
8227 | } |
57871462 |
8228 | } |
8229 | if(regs[j].regmap[hr]==f_regmap[hr]) |
8230 | regs[j].regmap_entry[hr]=f_regmap[hr]; |
8231 | break; |
8232 | } |
8233 | if(j==i) break; |
8234 | if(regs[j].regmap[hr]>=0) |
8235 | break; |
8236 | if(get_reg(regs[j].regmap,f_regmap[hr])>=0) { |
8237 | //printf("no-match due to different register\n"); |
8238 | break; |
8239 | } |
fe807a8a |
8240 | if (dops[j].is_ujump) |
e1190b87 |
8241 | { |
8242 | // Stop on unconditional branch |
8243 | break; |
8244 | } |
cf95b4f0 |
8245 | if(dops[j].itype==CJUMP||dops[j].itype==SJUMP) |
e1190b87 |
8246 | { |
cf95b4f0 |
8247 | if(dops[j].ooo) { |
277718fa |
8248 | if(count_free_regs(regs[j].regmap)<=cinfo[j+1].min_free_regs) |
e1190b87 |
8249 | break; |
8250 | }else{ |
277718fa |
8251 | if(count_free_regs(branch_regs[j].regmap)<=cinfo[j+1].min_free_regs) |
e1190b87 |
8252 | break; |
8253 | } |
8254 | if(get_reg(branch_regs[j].regmap,f_regmap[hr])>=0) { |
8255 | //printf("no-match due to different register (branch)\n"); |
57871462 |
8256 | break; |
8257 | } |
8258 | } |
277718fa |
8259 | if(count_free_regs(regs[j].regmap)<=cinfo[j].min_free_regs) { |
e1190b87 |
8260 | //printf("No free regs for store %x\n",start+j*4); |
8261 | break; |
8262 | } |
ad49de89 |
8263 | assert(f_regmap[hr]<64); |
57871462 |
8264 | } |
8265 | } |
8266 | } |
8267 | } |
8268 | } |
8269 | }else{ |
198df76f |
8270 | // Non branch or undetermined branch target |
57871462 |
8271 | for(hr=0;hr<HOST_REGS;hr++) |
8272 | { |
8273 | if(hr!=EXCLUDE_REG) { |
7c3a5182 |
8274 | if(regs[i].regmap[hr]>=0) { |
b372a952 |
8275 | if(f_regmap[hr]!=regs[i].regmap[hr]) { |
8276 | // dealloc old register |
8277 | int n; |
8278 | for(n=0;n<HOST_REGS;n++) |
8279 | { |
8280 | if(f_regmap[n]==regs[i].regmap[hr]) {f_regmap[n]=-1;} |
8281 | } |
4149788d |
8282 | // and alloc new one |
8283 | f_regmap[hr]=regs[i].regmap[hr]; |
8284 | } |
8285 | } |
8286 | } |
8287 | } |
8288 | // Try to restore cycle count at branch targets |
8289 | if(dops[i].bt) { |
8290 | for(j=i;j<slen-1;j++) { |
8291 | if(regs[j].regmap[HOST_CCREG]!=-1) break; |
277718fa |
8292 | if(count_free_regs(regs[j].regmap)<=cinfo[j].min_free_regs) { |
4149788d |
8293 | //printf("no free regs for store %x\n",start+j*4); |
8294 | break; |
8295 | } |
8296 | } |
8297 | if(regs[j].regmap[HOST_CCREG]==CCREG) { |
8298 | int k=i; |
8299 | //printf("Extend CC, %x -> %x\n",start+k*4,start+j*4); |
8300 | while(k<j) { |
8301 | regs[k].regmap_entry[HOST_CCREG]=CCREG; |
8302 | regs[k].regmap[HOST_CCREG]=CCREG; |
8303 | regmap_pre[k+1][HOST_CCREG]=CCREG; |
8304 | regs[k+1].wasdirty|=1<<HOST_CCREG; |
8305 | regs[k].dirty|=1<<HOST_CCREG; |
8306 | regs[k].wasconst&=~(1<<HOST_CCREG); |
8307 | regs[k].isconst&=~(1<<HOST_CCREG); |
8308 | k++; |
8309 | } |
8310 | regs[j].regmap_entry[HOST_CCREG]=CCREG; |
8311 | } |
8312 | // Work backwards from the branch target |
8313 | if(j>i&&f_regmap[HOST_CCREG]==CCREG) |
8314 | { |
8315 | //printf("Extend backwards\n"); |
8316 | int k; |
8317 | k=i; |
8318 | while(regs[k-1].regmap[HOST_CCREG]==-1) { |
277718fa |
8319 | if(count_free_regs(regs[k-1].regmap)<=cinfo[k-1].min_free_regs) { |
4149788d |
8320 | //printf("no free regs for store %x\n",start+(k-1)*4); |
8321 | break; |
8322 | } |
8323 | k--; |
8324 | } |
8325 | if(regs[k-1].regmap[HOST_CCREG]==CCREG) { |
8326 | //printf("Extend CC, %x ->\n",start+k*4); |
8327 | while(k<=i) { |
8328 | regs[k].regmap_entry[HOST_CCREG]=CCREG; |
8329 | regs[k].regmap[HOST_CCREG]=CCREG; |
8330 | regmap_pre[k+1][HOST_CCREG]=CCREG; |
8331 | regs[k+1].wasdirty|=1<<HOST_CCREG; |
8332 | regs[k].dirty|=1<<HOST_CCREG; |
8333 | regs[k].wasconst&=~(1<<HOST_CCREG); |
8334 | regs[k].isconst&=~(1<<HOST_CCREG); |
8335 | k++; |
8336 | } |
8337 | } |
8338 | else { |
8339 | //printf("Fail Extend CC, %x ->\n",start+k*4); |
8340 | } |
8341 | } |
8342 | } |
a5cd72d0 |
8343 | if(dops[i].itype!=STORE&&dops[i].itype!=STORELR&&dops[i].itype!=SHIFT&& |
4149788d |
8344 | dops[i].itype!=NOP&&dops[i].itype!=MOV&&dops[i].itype!=ALU&&dops[i].itype!=SHIFTIMM&& |
a5cd72d0 |
8345 | dops[i].itype!=IMM16&&dops[i].itype!=LOAD) |
4149788d |
8346 | { |
8347 | memcpy(f_regmap,regs[i].regmap,sizeof(f_regmap)); |
8348 | } |
8349 | } |
8350 | } |
8351 | } |
8352 | |
8353 | // This allocates registers (if possible) one instruction prior |
8354 | // to use, which can avoid a load-use penalty on certain CPUs. |
8355 | static noinline void pass5b_preallocate2(void) |
8356 | { |
8357 | int i, hr; |
8358 | for(i=0;i<slen-1;i++) |
8359 | { |
8360 | if (!i || !dops[i-1].is_jump) |
8361 | { |
8362 | if(!dops[i+1].bt) |
8363 | { |
277718fa |
8364 | int j, can_steal = 1; |
8365 | for (j = i; j < i + 2; j++) { |
8366 | int free_regs = 0; |
8367 | if (cinfo[j].min_free_regs == 0) |
8368 | continue; |
8369 | for (hr = 0; hr < HOST_REGS; hr++) |
8370 | if (hr != EXCLUDE_REG && regs[j].regmap[hr] < 0) |
8371 | free_regs++; |
8372 | if (free_regs <= cinfo[j].min_free_regs) { |
8373 | can_steal = 0; |
8374 | break; |
8375 | } |
8376 | } |
8377 | if (!can_steal) |
8378 | continue; |
4149788d |
8379 | if(dops[i].itype==ALU||dops[i].itype==MOV||dops[i].itype==LOAD||dops[i].itype==SHIFTIMM||dops[i].itype==IMM16 |
a5cd72d0 |
8380 | ||(dops[i].itype==COP2&&dops[i].opcode2<3)) |
4149788d |
8381 | { |
8382 | if(dops[i+1].rs1) { |
8383 | if((hr=get_reg(regs[i+1].regmap,dops[i+1].rs1))>=0) |
8384 | { |
8385 | if(regs[i].regmap[hr]<0&®s[i+1].regmap_entry[hr]<0) |
8386 | { |
8387 | regs[i].regmap[hr]=regs[i+1].regmap[hr]; |
8388 | regmap_pre[i+1][hr]=regs[i+1].regmap[hr]; |
8389 | regs[i+1].regmap_entry[hr]=regs[i+1].regmap[hr]; |
8390 | regs[i].isconst&=~(1<<hr); |
8391 | regs[i].isconst|=regs[i+1].isconst&(1<<hr); |
8392 | constmap[i][hr]=constmap[i+1][hr]; |
8393 | regs[i+1].wasdirty&=~(1<<hr); |
8394 | regs[i].dirty&=~(1<<hr); |
8395 | } |
8396 | } |
8397 | } |
8398 | if(dops[i+1].rs2) { |
8399 | if((hr=get_reg(regs[i+1].regmap,dops[i+1].rs2))>=0) |
8400 | { |
8401 | if(regs[i].regmap[hr]<0&®s[i+1].regmap_entry[hr]<0) |
8402 | { |
8403 | regs[i].regmap[hr]=regs[i+1].regmap[hr]; |
8404 | regmap_pre[i+1][hr]=regs[i+1].regmap[hr]; |
8405 | regs[i+1].regmap_entry[hr]=regs[i+1].regmap[hr]; |
8406 | regs[i].isconst&=~(1<<hr); |
8407 | regs[i].isconst|=regs[i+1].isconst&(1<<hr); |
8408 | constmap[i][hr]=constmap[i+1][hr]; |
8409 | regs[i+1].wasdirty&=~(1<<hr); |
8410 | regs[i].dirty&=~(1<<hr); |
8411 | } |
8412 | } |
8413 | } |
8414 | // Preload target address for load instruction (non-constant) |
8415 | if(dops[i+1].itype==LOAD&&dops[i+1].rs1&&get_reg(regs[i+1].regmap,dops[i+1].rs1)<0) { |
a5cd72d0 |
8416 | if((hr=get_reg_w(regs[i+1].regmap, dops[i+1].rt1))>=0) |
4149788d |
8417 | { |
8418 | if(regs[i].regmap[hr]<0&®s[i+1].regmap_entry[hr]<0) |
8419 | { |
8420 | regs[i].regmap[hr]=dops[i+1].rs1; |
8421 | regmap_pre[i+1][hr]=dops[i+1].rs1; |
8422 | regs[i+1].regmap_entry[hr]=dops[i+1].rs1; |
8423 | regs[i].isconst&=~(1<<hr); |
8424 | regs[i].isconst|=regs[i+1].isconst&(1<<hr); |
8425 | constmap[i][hr]=constmap[i+1][hr]; |
8426 | regs[i+1].wasdirty&=~(1<<hr); |
8427 | regs[i].dirty&=~(1<<hr); |
8428 | } |
8429 | } |
8430 | } |
8431 | // Load source into target register |
8432 | if(dops[i+1].use_lt1&&get_reg(regs[i+1].regmap,dops[i+1].rs1)<0) { |
a5cd72d0 |
8433 | if((hr=get_reg_w(regs[i+1].regmap, dops[i+1].rt1))>=0) |
4149788d |
8434 | { |
8435 | if(regs[i].regmap[hr]<0&®s[i+1].regmap_entry[hr]<0) |
8436 | { |
8437 | regs[i].regmap[hr]=dops[i+1].rs1; |
8438 | regmap_pre[i+1][hr]=dops[i+1].rs1; |
8439 | regs[i+1].regmap_entry[hr]=dops[i+1].rs1; |
8440 | regs[i].isconst&=~(1<<hr); |
8441 | regs[i].isconst|=regs[i+1].isconst&(1<<hr); |
8442 | constmap[i][hr]=constmap[i+1][hr]; |
8443 | regs[i+1].wasdirty&=~(1<<hr); |
8444 | regs[i].dirty&=~(1<<hr); |
8445 | } |
8446 | } |
8447 | } |
8448 | // Address for store instruction (non-constant) |
277718fa |
8449 | if (dops[i+1].is_store) { // SB/SH/SW/SWC2 |
4149788d |
8450 | if(get_reg(regs[i+1].regmap,dops[i+1].rs1)<0) { |
8451 | hr=get_reg2(regs[i].regmap,regs[i+1].regmap,-1); |
8452 | if(hr<0) hr=get_reg_temp(regs[i+1].regmap); |
8453 | else { |
8454 | regs[i+1].regmap[hr]=AGEN1+((i+1)&1); |
8455 | regs[i+1].isconst&=~(1<<hr); |
277718fa |
8456 | regs[i+1].dirty&=~(1<<hr); |
8457 | regs[i+2].wasdirty&=~(1<<hr); |
4149788d |
8458 | } |
8459 | assert(hr>=0); |
f0b91b78 |
8460 | #if 0 // what is this for? double allocs $0 in ps1_rom.bin |
4149788d |
8461 | if(regs[i].regmap[hr]<0&®s[i+1].regmap_entry[hr]<0) |
8462 | { |
8463 | regs[i].regmap[hr]=dops[i+1].rs1; |
8464 | regmap_pre[i+1][hr]=dops[i+1].rs1; |
8465 | regs[i+1].regmap_entry[hr]=dops[i+1].rs1; |
8466 | regs[i].isconst&=~(1<<hr); |
8467 | regs[i].isconst|=regs[i+1].isconst&(1<<hr); |
8468 | constmap[i][hr]=constmap[i+1][hr]; |
8469 | regs[i+1].wasdirty&=~(1<<hr); |
8470 | regs[i].dirty&=~(1<<hr); |
8471 | } |
f0b91b78 |
8472 | #endif |
4149788d |
8473 | } |
8474 | } |
277718fa |
8475 | if (dops[i+1].itype == LOADLR || dops[i+1].opcode == 0x32) { // LWC2 |
4149788d |
8476 | if(get_reg(regs[i+1].regmap,dops[i+1].rs1)<0) { |
8477 | int nr; |
8478 | hr=get_reg(regs[i+1].regmap,FTEMP); |
8479 | assert(hr>=0); |
8480 | if(regs[i].regmap[hr]<0&®s[i+1].regmap_entry[hr]<0) |
8481 | { |
8482 | regs[i].regmap[hr]=dops[i+1].rs1; |
8483 | regmap_pre[i+1][hr]=dops[i+1].rs1; |
8484 | regs[i+1].regmap_entry[hr]=dops[i+1].rs1; |
8485 | regs[i].isconst&=~(1<<hr); |
8486 | regs[i].isconst|=regs[i+1].isconst&(1<<hr); |
8487 | constmap[i][hr]=constmap[i+1][hr]; |
8488 | regs[i+1].wasdirty&=~(1<<hr); |
8489 | regs[i].dirty&=~(1<<hr); |
8490 | } |
8491 | else if((nr=get_reg2(regs[i].regmap,regs[i+1].regmap,-1))>=0) |
8492 | { |
8493 | // move it to another register |
8494 | regs[i+1].regmap[hr]=-1; |
8495 | regmap_pre[i+2][hr]=-1; |
8496 | regs[i+1].regmap[nr]=FTEMP; |
8497 | regmap_pre[i+2][nr]=FTEMP; |
8498 | regs[i].regmap[nr]=dops[i+1].rs1; |
8499 | regmap_pre[i+1][nr]=dops[i+1].rs1; |
8500 | regs[i+1].regmap_entry[nr]=dops[i+1].rs1; |
8501 | regs[i].isconst&=~(1<<nr); |
8502 | regs[i+1].isconst&=~(1<<nr); |
8503 | regs[i].dirty&=~(1<<nr); |
8504 | regs[i+1].wasdirty&=~(1<<nr); |
8505 | regs[i+1].dirty&=~(1<<nr); |
8506 | regs[i+2].wasdirty&=~(1<<nr); |
8507 | } |
8508 | } |
8509 | } |
a5cd72d0 |
8510 | if(dops[i+1].itype==LOAD||dops[i+1].itype==LOADLR||dops[i+1].itype==STORE||dops[i+1].itype==STORELR/*||dops[i+1].itype==C2LS*/) { |
4149788d |
8511 | hr = -1; |
8512 | if(dops[i+1].itype==LOAD) |
a5cd72d0 |
8513 | hr=get_reg_w(regs[i+1].regmap, dops[i+1].rt1); |
277718fa |
8514 | if (dops[i+1].itype == LOADLR || dops[i+1].opcode == 0x32) // LWC2 |
4149788d |
8515 | hr=get_reg(regs[i+1].regmap,FTEMP); |
277718fa |
8516 | if (dops[i+1].is_store) { |
4149788d |
8517 | hr=get_reg(regs[i+1].regmap,AGEN1+((i+1)&1)); |
8518 | if(hr<0) hr=get_reg_temp(regs[i+1].regmap); |
8519 | } |
8520 | if(hr>=0&®s[i].regmap[hr]<0) { |
8521 | int rs=get_reg(regs[i+1].regmap,dops[i+1].rs1); |
8522 | if(rs>=0&&((regs[i+1].wasconst>>rs)&1)) { |
8523 | regs[i].regmap[hr]=AGEN1+((i+1)&1); |
8524 | regmap_pre[i+1][hr]=AGEN1+((i+1)&1); |
8525 | regs[i+1].regmap_entry[hr]=AGEN1+((i+1)&1); |
8526 | regs[i].isconst&=~(1<<hr); |
8527 | regs[i+1].wasdirty&=~(1<<hr); |
8528 | regs[i].dirty&=~(1<<hr); |
8529 | } |
b372a952 |
8530 | } |
8531 | } |
57871462 |
8532 | } |
8533 | } |
4149788d |
8534 | } |
8535 | } |
8536 | } |
8537 | |
8538 | // Write back dirty registers as soon as we will no longer modify them, |
8539 | // so that we don't end up with lots of writes at the branches. |
8540 | static noinline void pass6_clean_registers(int istart, int iend, int wr) |
8541 | { |
53358c1d |
8542 | static u_int wont_dirty[MAXBLOCK]; |
8543 | static u_int will_dirty[MAXBLOCK]; |
4149788d |
8544 | int i; |
8545 | int r; |
8546 | u_int will_dirty_i,will_dirty_next,temp_will_dirty; |
8547 | u_int wont_dirty_i,wont_dirty_next,temp_wont_dirty; |
8548 | if(iend==slen-1) { |
8549 | will_dirty_i=will_dirty_next=0; |
8550 | wont_dirty_i=wont_dirty_next=0; |
8551 | }else{ |
8552 | will_dirty_i=will_dirty_next=will_dirty[iend+1]; |
8553 | wont_dirty_i=wont_dirty_next=wont_dirty[iend+1]; |
8554 | } |
8555 | for (i=iend;i>=istart;i--) |
8556 | { |
8557 | signed char rregmap_i[RRMAP_SIZE]; |
8558 | u_int hr_candirty = 0; |
8559 | assert(HOST_REGS < 32); |
8560 | make_rregs(regs[i].regmap, rregmap_i, &hr_candirty); |
8561 | __builtin_prefetch(regs[i-1].regmap); |
8562 | if(dops[i].is_jump) |
8563 | { |
8564 | signed char branch_rregmap_i[RRMAP_SIZE]; |
8565 | u_int branch_hr_candirty = 0; |
8566 | make_rregs(branch_regs[i].regmap, branch_rregmap_i, &branch_hr_candirty); |
277718fa |
8567 | if(cinfo[i].ba<start || cinfo[i].ba>=(start+slen*4)) |
4149788d |
8568 | { |
8569 | // Branch out of this block, flush all regs |
8570 | will_dirty_i = 0; |
8571 | will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt1) & 31); |
8572 | will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt2) & 31); |
8573 | will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt1) & 31); |
8574 | will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt2) & 31); |
8575 | will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, CCREG) & 31); |
8576 | will_dirty_i &= branch_hr_candirty; |
8577 | if (dops[i].is_ujump) |
8578 | { |
8579 | // Unconditional branch |
8580 | wont_dirty_i = 0; |
8581 | // Merge in delay slot (will dirty) |
8582 | will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt1) & 31); |
8583 | will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt2) & 31); |
8584 | will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i+1].rt1) & 31); |
8585 | will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i+1].rt2) & 31); |
8586 | will_dirty_i |= 1u << (get_rreg(rregmap_i, CCREG) & 31); |
8587 | will_dirty_i &= hr_candirty; |
57871462 |
8588 | } |
4149788d |
8589 | else |
8590 | { |
8591 | // Conditional branch |
8592 | wont_dirty_i = wont_dirty_next; |
8593 | // Merge in delay slot (will dirty) |
8594 | // (the original code had no explanation why these 2 are commented out) |
8595 | //will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt1) & 31); |
8596 | //will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt2) & 31); |
8597 | will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i+1].rt1) & 31); |
8598 | will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i+1].rt2) & 31); |
8599 | will_dirty_i |= 1u << (get_rreg(rregmap_i, CCREG) & 31); |
8600 | will_dirty_i &= hr_candirty; |
8601 | } |
8602 | // Merge in delay slot (wont dirty) |
8603 | wont_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt1) & 31); |
8604 | wont_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt2) & 31); |
8605 | wont_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i+1].rt1) & 31); |
8606 | wont_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i+1].rt2) & 31); |
8607 | wont_dirty_i |= 1u << (get_rreg(rregmap_i, CCREG) & 31); |
8608 | wont_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt1) & 31); |
8609 | wont_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt2) & 31); |
8610 | wont_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt1) & 31); |
8611 | wont_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt2) & 31); |
8612 | wont_dirty_i |= 1u << (get_rreg(branch_rregmap_i, CCREG) & 31); |
8613 | wont_dirty_i &= ~(1u << 31); |
8614 | if(wr) { |
8615 | #ifndef DESTRUCTIVE_WRITEBACK |
8616 | branch_regs[i].dirty&=wont_dirty_i; |
8617 | #endif |
8618 | branch_regs[i].dirty|=will_dirty_i; |
8619 | } |
8620 | } |
8621 | else |
8622 | { |
8623 | // Internal branch |
277718fa |
8624 | if(cinfo[i].ba<=start+i*4) { |
4149788d |
8625 | // Backward branch |
8626 | if (dops[i].is_ujump) |
8627 | { |
8628 | // Unconditional branch |
8629 | temp_will_dirty=0; |
8630 | temp_wont_dirty=0; |
8631 | // Merge in delay slot (will dirty) |
8632 | temp_will_dirty |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt1) & 31); |
8633 | temp_will_dirty |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt2) & 31); |
8634 | temp_will_dirty |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt1) & 31); |
8635 | temp_will_dirty |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt2) & 31); |
8636 | temp_will_dirty |= 1u << (get_rreg(branch_rregmap_i, CCREG) & 31); |
8637 | temp_will_dirty &= branch_hr_candirty; |
8638 | temp_will_dirty |= 1u << (get_rreg(rregmap_i, dops[i].rt1) & 31); |
8639 | temp_will_dirty |= 1u << (get_rreg(rregmap_i, dops[i].rt2) & 31); |
8640 | temp_will_dirty |= 1u << (get_rreg(rregmap_i, dops[i+1].rt1) & 31); |
8641 | temp_will_dirty |= 1u << (get_rreg(rregmap_i, dops[i+1].rt2) & 31); |
8642 | temp_will_dirty |= 1u << (get_rreg(rregmap_i, CCREG) & 31); |
8643 | temp_will_dirty &= hr_candirty; |
8644 | } else { |
8645 | // Conditional branch (not taken case) |
8646 | temp_will_dirty=will_dirty_next; |
8647 | temp_wont_dirty=wont_dirty_next; |
8648 | // Merge in delay slot (will dirty) |
8649 | temp_will_dirty |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt1) & 31); |
8650 | temp_will_dirty |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt2) & 31); |
8651 | temp_will_dirty |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt1) & 31); |
8652 | temp_will_dirty |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt2) & 31); |
8653 | temp_will_dirty |= 1u << (get_rreg(branch_rregmap_i, CCREG) & 31); |
8654 | temp_will_dirty &= branch_hr_candirty; |
8655 | //temp_will_dirty |= 1u << (get_rreg(rregmap_i, dops[i].rt1) & 31); |
8656 | //temp_will_dirty |= 1u << (get_rreg(rregmap_i, dops[i].rt2) & 31); |
8657 | temp_will_dirty |= 1u << (get_rreg(rregmap_i, dops[i+1].rt1) & 31); |
8658 | temp_will_dirty |= 1u << (get_rreg(rregmap_i, dops[i+1].rt2) & 31); |
8659 | temp_will_dirty |= 1u << (get_rreg(rregmap_i, CCREG) & 31); |
8660 | temp_will_dirty &= hr_candirty; |
8661 | } |
8662 | // Merge in delay slot (wont dirty) |
8663 | temp_wont_dirty |= 1u << (get_rreg(rregmap_i, dops[i].rt1) & 31); |
8664 | temp_wont_dirty |= 1u << (get_rreg(rregmap_i, dops[i].rt2) & 31); |
8665 | temp_wont_dirty |= 1u << (get_rreg(rregmap_i, dops[i+1].rt1) & 31); |
8666 | temp_wont_dirty |= 1u << (get_rreg(rregmap_i, dops[i+1].rt2) & 31); |
8667 | temp_wont_dirty |= 1u << (get_rreg(rregmap_i, CCREG) & 31); |
8668 | temp_wont_dirty |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt1) & 31); |
8669 | temp_wont_dirty |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt2) & 31); |
8670 | temp_wont_dirty |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt1) & 31); |
8671 | temp_wont_dirty |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt2) & 31); |
8672 | temp_wont_dirty |= 1u << (get_rreg(branch_rregmap_i, CCREG) & 31); |
8673 | temp_wont_dirty &= ~(1u << 31); |
8674 | // Deal with changed mappings |
8675 | if(i<iend) { |
8676 | for(r=0;r<HOST_REGS;r++) { |
8677 | if(r!=EXCLUDE_REG) { |
8678 | if(regs[i].regmap[r]!=regmap_pre[i][r]) { |
8679 | temp_will_dirty&=~(1<<r); |
8680 | temp_wont_dirty&=~(1<<r); |
8681 | if(regmap_pre[i][r]>0 && regmap_pre[i][r]<34) { |
8682 | temp_will_dirty|=((unneeded_reg[i]>>regmap_pre[i][r])&1)<<r; |
8683 | temp_wont_dirty|=((unneeded_reg[i]>>regmap_pre[i][r])&1)<<r; |
8684 | } else { |
8685 | temp_will_dirty|=1<<r; |
8686 | temp_wont_dirty|=1<<r; |
8687 | } |
8688 | } |
8689 | } |
8690 | } |
8691 | } |
8692 | if(wr) { |
8693 | will_dirty[i]=temp_will_dirty; |
8694 | wont_dirty[i]=temp_wont_dirty; |
277718fa |
8695 | pass6_clean_registers((cinfo[i].ba-start)>>2,i-1,0); |
4149788d |
8696 | }else{ |
8697 | // Limit recursion. It can take an excessive amount |
8698 | // of time if there are a lot of nested loops. |
277718fa |
8699 | will_dirty[(cinfo[i].ba-start)>>2]=0; |
8700 | wont_dirty[(cinfo[i].ba-start)>>2]=-1; |
57871462 |
8701 | } |
57871462 |
8702 | } |
4149788d |
8703 | /*else*/ if(1) |
57871462 |
8704 | { |
4149788d |
8705 | if (dops[i].is_ujump) |
8706 | { |
8707 | // Unconditional branch |
8708 | will_dirty_i=0; |
8709 | wont_dirty_i=0; |
277718fa |
8710 | //if(cinfo[i].ba>start+i*4) { // Disable recursion (for debugging) |
4149788d |
8711 | for(r=0;r<HOST_REGS;r++) { |
8712 | if(r!=EXCLUDE_REG) { |
277718fa |
8713 | if(branch_regs[i].regmap[r]==regs[(cinfo[i].ba-start)>>2].regmap_entry[r]) { |
8714 | will_dirty_i|=will_dirty[(cinfo[i].ba-start)>>2]&(1<<r); |
8715 | wont_dirty_i|=wont_dirty[(cinfo[i].ba-start)>>2]&(1<<r); |
4149788d |
8716 | } |
8717 | if(branch_regs[i].regmap[r]>=0) { |
277718fa |
8718 | will_dirty_i|=((unneeded_reg[(cinfo[i].ba-start)>>2]>>branch_regs[i].regmap[r])&1)<<r; |
8719 | wont_dirty_i|=((unneeded_reg[(cinfo[i].ba-start)>>2]>>branch_regs[i].regmap[r])&1)<<r; |
4149788d |
8720 | } |
8721 | } |
57871462 |
8722 | } |
4149788d |
8723 | //} |
8724 | // Merge in delay slot |
8725 | will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt1) & 31); |
8726 | will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt2) & 31); |
8727 | will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt1) & 31); |
8728 | will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt2) & 31); |
8729 | will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, CCREG) & 31); |
8730 | will_dirty_i &= branch_hr_candirty; |
8731 | will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt1) & 31); |
8732 | will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt2) & 31); |
8733 | will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i+1].rt1) & 31); |
8734 | will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i+1].rt2) & 31); |
8735 | will_dirty_i |= 1u << (get_rreg(rregmap_i, CCREG) & 31); |
8736 | will_dirty_i &= hr_candirty; |
8737 | } else { |
8738 | // Conditional branch |
8739 | will_dirty_i=will_dirty_next; |
8740 | wont_dirty_i=wont_dirty_next; |
277718fa |
8741 | //if(cinfo[i].ba>start+i*4) // Disable recursion (for debugging) |
4149788d |
8742 | for(r=0;r<HOST_REGS;r++) { |
8743 | if(r!=EXCLUDE_REG) { |
8744 | signed char target_reg=branch_regs[i].regmap[r]; |
277718fa |
8745 | if(target_reg==regs[(cinfo[i].ba-start)>>2].regmap_entry[r]) { |
8746 | will_dirty_i&=will_dirty[(cinfo[i].ba-start)>>2]&(1<<r); |
8747 | wont_dirty_i|=wont_dirty[(cinfo[i].ba-start)>>2]&(1<<r); |
4149788d |
8748 | } |
8749 | else if(target_reg>=0) { |
277718fa |
8750 | will_dirty_i&=((unneeded_reg[(cinfo[i].ba-start)>>2]>>target_reg)&1)<<r; |
8751 | wont_dirty_i|=((unneeded_reg[(cinfo[i].ba-start)>>2]>>target_reg)&1)<<r; |
4149788d |
8752 | } |
8753 | } |
57871462 |
8754 | } |
4149788d |
8755 | // Merge in delay slot |
8756 | will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt1) & 31); |
8757 | will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt2) & 31); |
8758 | will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt1) & 31); |
8759 | will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt2) & 31); |
8760 | will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, CCREG) & 31); |
8761 | will_dirty_i &= branch_hr_candirty; |
8762 | //will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt1) & 31); |
8763 | //will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt2) & 31); |
8764 | will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i+1].rt1) & 31); |
8765 | will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i+1].rt2) & 31); |
8766 | will_dirty_i |= 1u << (get_rreg(rregmap_i, CCREG) & 31); |
8767 | will_dirty_i &= hr_candirty; |
57871462 |
8768 | } |
4149788d |
8769 | // Merge in delay slot (won't dirty) |
8770 | wont_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt1) & 31); |
8771 | wont_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt2) & 31); |
8772 | wont_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i+1].rt1) & 31); |
8773 | wont_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i+1].rt2) & 31); |
8774 | wont_dirty_i |= 1u << (get_rreg(rregmap_i, CCREG) & 31); |
8775 | wont_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt1) & 31); |
8776 | wont_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt2) & 31); |
8777 | wont_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt1) & 31); |
8778 | wont_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt2) & 31); |
8779 | wont_dirty_i |= 1u << (get_rreg(branch_rregmap_i, CCREG) & 31); |
8780 | wont_dirty_i &= ~(1u << 31); |
8781 | if(wr) { |
8782 | #ifndef DESTRUCTIVE_WRITEBACK |
8783 | branch_regs[i].dirty&=wont_dirty_i; |
8784 | #endif |
8785 | branch_regs[i].dirty|=will_dirty_i; |
57871462 |
8786 | } |
8787 | } |
8788 | } |
57871462 |
8789 | } |
277718fa |
8790 | else if (dops[i].is_exception) |
4149788d |
8791 | { |
277718fa |
8792 | // SYSCALL instruction, etc |
4149788d |
8793 | will_dirty_i=0; |
8794 | wont_dirty_i=0; |
8795 | } |
8796 | will_dirty_next=will_dirty_i; |
8797 | wont_dirty_next=wont_dirty_i; |
8798 | will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt1) & 31); |
8799 | will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt2) & 31); |
8800 | will_dirty_i |= 1u << (get_rreg(rregmap_i, CCREG) & 31); |
8801 | will_dirty_i &= hr_candirty; |
8802 | wont_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt1) & 31); |
8803 | wont_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt2) & 31); |
8804 | wont_dirty_i |= 1u << (get_rreg(rregmap_i, CCREG) & 31); |
8805 | wont_dirty_i &= ~(1u << 31); |
8806 | if (i > istart && !dops[i].is_jump) { |
8807 | // Don't store a register immediately after writing it, |
8808 | // may prevent dual-issue. |
8809 | wont_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i-1].rt1) & 31); |
8810 | wont_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i-1].rt2) & 31); |
8811 | } |
8812 | // Save it |
8813 | will_dirty[i]=will_dirty_i; |
8814 | wont_dirty[i]=wont_dirty_i; |
8815 | // Mark registers that won't be dirtied as not dirty |
8816 | if(wr) { |
8817 | regs[i].dirty|=will_dirty_i; |
8818 | #ifndef DESTRUCTIVE_WRITEBACK |
8819 | regs[i].dirty&=wont_dirty_i; |
8820 | if(dops[i].is_jump) |
57871462 |
8821 | { |
4149788d |
8822 | if (i < iend-1 && !dops[i].is_ujump) { |
8823 | for(r=0;r<HOST_REGS;r++) { |
8824 | if(r!=EXCLUDE_REG) { |
8825 | if(regs[i].regmap[r]==regmap_pre[i+2][r]) { |
8826 | regs[i+2].wasdirty&=wont_dirty_i|~(1<<r); |
8827 | }else {/*printf("i: %x (%d) mismatch(+2): %d\n",start+i*4,i,r);assert(!((wont_dirty_i>>r)&1));*/} |
57871462 |
8828 | } |
8829 | } |
8830 | } |
4149788d |
8831 | } |
8832 | else |
8833 | { |
8834 | if(i<iend) { |
8835 | for(r=0;r<HOST_REGS;r++) { |
8836 | if(r!=EXCLUDE_REG) { |
8837 | if(regs[i].regmap[r]==regmap_pre[i+1][r]) { |
8838 | regs[i+1].wasdirty&=wont_dirty_i|~(1<<r); |
8839 | }else {/*printf("i: %x (%d) mismatch(+1): %d\n",start+i*4,i,r);assert(!((wont_dirty_i>>r)&1));*/} |
57871462 |
8840 | } |
8841 | } |
8842 | } |
4149788d |
8843 | } |
8844 | #endif |
8845 | } |
8846 | // Deal with changed mappings |
8847 | temp_will_dirty=will_dirty_i; |
8848 | temp_wont_dirty=wont_dirty_i; |
8849 | for(r=0;r<HOST_REGS;r++) { |
8850 | if(r!=EXCLUDE_REG) { |
8851 | int nr; |
8852 | if(regs[i].regmap[r]==regmap_pre[i][r]) { |
8853 | if(wr) { |
8854 | #ifndef DESTRUCTIVE_WRITEBACK |
8855 | regs[i].wasdirty&=wont_dirty_i|~(1<<r); |
8856 | #endif |
8857 | regs[i].wasdirty|=will_dirty_i&(1<<r); |
57871462 |
8858 | } |
4149788d |
8859 | } |
8860 | else if(regmap_pre[i][r]>=0&&(nr=get_rreg(rregmap_i,regmap_pre[i][r]))>=0) { |
8861 | // Register moved to a different register |
8862 | will_dirty_i&=~(1<<r); |
8863 | wont_dirty_i&=~(1<<r); |
8864 | will_dirty_i|=((temp_will_dirty>>nr)&1)<<r; |
8865 | wont_dirty_i|=((temp_wont_dirty>>nr)&1)<<r; |
8866 | if(wr) { |
8867 | #ifndef DESTRUCTIVE_WRITEBACK |
8868 | regs[i].wasdirty&=wont_dirty_i|~(1<<r); |
8869 | #endif |
8870 | regs[i].wasdirty|=will_dirty_i&(1<<r); |
8871 | } |
8872 | } |
8873 | else { |
8874 | will_dirty_i&=~(1<<r); |
8875 | wont_dirty_i&=~(1<<r); |
8876 | if(regmap_pre[i][r]>0 && regmap_pre[i][r]<34) { |
8877 | will_dirty_i|=((unneeded_reg[i]>>regmap_pre[i][r])&1)<<r; |
8878 | wont_dirty_i|=((unneeded_reg[i]>>regmap_pre[i][r])&1)<<r; |
8879 | } else { |
8880 | wont_dirty_i|=1<<r; |
8881 | /*printf("i: %x (%d) mismatch: %d\n",start+i*4,i,r);assert(!((will_dirty>>r)&1));*/ |
57871462 |
8882 | } |
8883 | } |
8884 | } |
8885 | } |
8886 | } |
4149788d |
8887 | } |
8888 | |
8889 | static noinline void pass10_expire_blocks(void) |
8890 | { |
93c0345b |
8891 | u_int step = MAX_OUTPUT_BLOCK_SIZE / PAGE_COUNT / 2; |
8892 | // not sizeof(ndrc->translation_cache) due to vita hack |
8893 | u_int step_mask = ((1u << TARGET_SIZE_2) - 1u) & ~(step - 1u); |
8894 | u_int end = (out - ndrc->translation_cache + EXPIRITY_OFFSET) & step_mask; |
8895 | u_int base_shift = __builtin_ctz(MAX_OUTPUT_BLOCK_SIZE); |
8896 | int hit; |
8897 | |
8898 | for (; expirep != end; expirep = ((expirep + step) & step_mask)) |
4149788d |
8899 | { |
93c0345b |
8900 | u_int base_offs = expirep & ~(MAX_OUTPUT_BLOCK_SIZE - 1); |
8901 | u_int block_i = expirep / step & (PAGE_COUNT - 1); |
8902 | u_int phase = (expirep >> (base_shift - 1)) & 1u; |
8903 | if (!(expirep & (MAX_OUTPUT_BLOCK_SIZE / 2 - 1))) { |
9b495f6e |
8904 | inv_debug("EXP: base_offs %x/%lx phase %u\n", base_offs, |
8905 | (long)(out - ndrc->translation_cache), phase); |
93c0345b |
8906 | } |
8907 | |
8908 | if (!phase) { |
8909 | hit = blocks_remove_matching_addrs(&blocks[block_i], base_offs, base_shift); |
8910 | if (hit) { |
8911 | do_clear_cache(); |
04714958 |
8912 | mini_ht_clear(); |
93c0345b |
8913 | } |
4149788d |
8914 | } |
93c0345b |
8915 | else |
b7ad2f2c |
8916 | unlink_jumps_tc_range(jumps[block_i], base_offs, base_shift); |
4149788d |
8917 | } |
8918 | } |
8919 | |
104df9d3 |
8920 | static struct block_info *new_block_info(u_int start, u_int len, |
8921 | const void *source, const void *copy, u_char *beginning, u_short jump_in_count) |
8922 | { |
8923 | struct block_info **b_pptr; |
8924 | struct block_info *block; |
8925 | u_int page = get_page(start); |
8926 | |
8927 | block = malloc(sizeof(*block) + jump_in_count * sizeof(block->jump_in[0])); |
8928 | assert(block); |
8929 | assert(jump_in_count > 0); |
8930 | block->source = source; |
8931 | block->copy = copy; |
8932 | block->start = start; |
8933 | block->len = len; |
8934 | block->reg_sv_flags = 0; |
8935 | block->tc_offs = beginning - ndrc->translation_cache; |
8936 | //block->tc_len = out - beginning; |
8937 | block->is_dirty = 0; |
3280e616 |
8938 | block->inv_near_misses = 0; |
104df9d3 |
8939 | block->jump_in_cnt = jump_in_count; |
8940 | |
93c0345b |
8941 | // insert sorted by start mirror-unmasked vaddr |
104df9d3 |
8942 | for (b_pptr = &blocks[page]; ; b_pptr = &((*b_pptr)->next)) { |
8943 | if (*b_pptr == NULL || (*b_pptr)->start >= start) { |
8944 | block->next = *b_pptr; |
8945 | *b_pptr = block; |
8946 | break; |
8947 | } |
8948 | } |
8949 | stat_inc(stat_blocks); |
8950 | return block; |
8951 | } |
8952 | |
8953 | static int new_recompile_block(u_int addr) |
4149788d |
8954 | { |
8955 | u_int pagelimit = 0; |
8956 | u_int state_rflags = 0; |
8957 | int i; |
8958 | |
8959 | assem_debug("NOTCOMPILED: addr = %x -> %p\n", addr, out); |
8960 | |
a5cd72d0 |
8961 | if (addr & 3) { |
8962 | if (addr != hack_addr) { |
8963 | SysPrintf("game crash @%08x, ra=%08x\n", addr, psxRegs.GPR.n.ra); |
8964 | hack_addr = addr; |
8965 | } |
8966 | return -1; |
8967 | } |
8968 | |
4149788d |
8969 | // this is just for speculation |
8970 | for (i = 1; i < 32; i++) { |
8971 | if ((psxRegs.GPR.r[i] & 0xffff0000) == 0x1f800000) |
8972 | state_rflags |= 1 << i; |
8973 | } |
8974 | |
a5cd72d0 |
8975 | start = addr; |
4149788d |
8976 | new_dynarec_did_compile=1; |
8977 | if (Config.HLE && start == 0x80001000) // hlecall |
8978 | { |
104df9d3 |
8979 | void *beginning = start_block(); |
4149788d |
8980 | |
4149788d |
8981 | emit_movimm(start,0); |
8982 | emit_writeword(0,&pcaddr); |
8983 | emit_far_jump(new_dyna_leave); |
8984 | literal_pool(0); |
8985 | end_block(beginning); |
104df9d3 |
8986 | struct block_info *block = new_block_info(start, 4, NULL, NULL, beginning, 1); |
8987 | block->jump_in[0].vaddr = start; |
8988 | block->jump_in[0].addr = beginning; |
4149788d |
8989 | return 0; |
8990 | } |
8991 | else if (f1_hack && hack_addr == 0) { |
8992 | void *beginning = start_block(); |
4149788d |
8993 | emit_movimm(start, 0); |
8994 | emit_writeword(0, &hack_addr); |
8995 | emit_readword(&psxRegs.GPR.n.sp, 0); |
8996 | emit_readptr(&mem_rtab, 1); |
8997 | emit_shrimm(0, 12, 2); |
8998 | emit_readptr_dualindexedx_ptrlen(1, 2, 1); |
8999 | emit_addimm(0, 0x18, 0); |
9000 | emit_adds_ptr(1, 1, 1); |
9001 | emit_ldr_dualindexed(1, 0, 0); |
9002 | emit_writeword(0, &psxRegs.GPR.r[26]); // lw k0, 0x18(sp) |
104df9d3 |
9003 | emit_far_call(ndrc_get_addr_ht); |
4149788d |
9004 | emit_jmpreg(0); // jr k0 |
9005 | literal_pool(0); |
9006 | end_block(beginning); |
9007 | |
104df9d3 |
9008 | struct block_info *block = new_block_info(start, 4, NULL, NULL, beginning, 1); |
9009 | block->jump_in[0].vaddr = start; |
9010 | block->jump_in[0].addr = beginning; |
4149788d |
9011 | SysPrintf("F1 hack to %08x\n", start); |
9012 | return 0; |
9013 | } |
9014 | |
42eb665e |
9015 | cycle_multiplier_active = get_cycle_multiplier(); |
4149788d |
9016 | |
9017 | source = get_source_start(start, &pagelimit); |
9018 | if (source == NULL) { |
9019 | if (addr != hack_addr) { |
42eb665e |
9020 | SysPrintf("Compile at bogus memory address: %08x, ra=%x\n", |
9021 | addr, psxRegs.GPR.n.ra); |
4149788d |
9022 | hack_addr = addr; |
9023 | } |
9024 | //abort(); |
9025 | return -1; |
9026 | } |
9027 | |
9028 | /* Pass 1: disassemble */ |
9029 | /* Pass 2: register dependencies, branch targets */ |
9030 | /* Pass 3: register allocation */ |
9031 | /* Pass 4: branch dependencies */ |
9032 | /* Pass 5: pre-alloc */ |
9033 | /* Pass 6: optimize clean/dirty state */ |
9034 | /* Pass 7: flag 32-bit registers */ |
9035 | /* Pass 8: assembly */ |
9036 | /* Pass 9: linker */ |
9037 | /* Pass 10: garbage collection / free memory */ |
9038 | |
9039 | /* Pass 1 disassembly */ |
9040 | |
9041 | pass1_disassemble(pagelimit); |
9042 | |
9043 | int clear_hack_addr = apply_hacks(); |
9044 | |
9045 | /* Pass 2 - Register dependencies and branch targets */ |
9046 | |
9047 | pass2_unneeded_regs(0,slen-1,0); |
9048 | |
f9e9616e |
9049 | pass2a_unneeded_other(); |
9050 | |
4149788d |
9051 | /* Pass 3 - Register allocation */ |
9052 | |
9053 | pass3_register_alloc(addr); |
9054 | |
9055 | /* Pass 4 - Cull unused host registers */ |
9056 | |
9057 | pass4_cull_unused_regs(); |
9058 | |
9059 | /* Pass 5 - Pre-allocate registers */ |
9060 | |
9061 | pass5a_preallocate1(); |
9062 | pass5b_preallocate2(); |
9f51b4b9 |
9063 | |
57871462 |
9064 | /* Pass 6 - Optimize clean/dirty state */ |
4149788d |
9065 | pass6_clean_registers(0, slen-1, 1); |
9f51b4b9 |
9066 | |
33a1eda1 |
9067 | /* Pass 7 */ |
04fd948a |
9068 | for (i=slen-1;i>=0;i--) |
9069 | { |
cf95b4f0 |
9070 | if(dops[i].itype==CJUMP||dops[i].itype==SJUMP) |
04fd948a |
9071 | { |
9072 | // Conditional branch |
9073 | if((source[i]>>16)!=0x1000&&i<slen-2) { |
9074 | // Mark this address as a branch target since it may be called |
9075 | // upon return from interrupt |
cf95b4f0 |
9076 | dops[i+2].bt=1; |
04fd948a |
9077 | } |
9078 | } |
9079 | } |
57871462 |
9080 | |
57871462 |
9081 | /* Pass 8 - Assembly */ |
9082 | linkcount=0;stubcount=0; |
4149788d |
9083 | is_delayslot=0; |
57871462 |
9084 | u_int dirty_pre=0; |
d148d265 |
9085 | void *beginning=start_block(); |
df4dc2b1 |
9086 | void *instr_addr0_override = NULL; |
4bdc30ab |
9087 | int ds = 0; |
9ad4d757 |
9088 | |
65722e04 |
9089 | if ((Config.HLE && start == 0x80000080) || start == 0x80030000) { |
df4dc2b1 |
9090 | instr_addr0_override = out; |
65722e04 |
9091 | emit_movimm(start, 0); |
9092 | if (start == 0x80030000) { |
9093 | // for BiosBootBypass() to work |
9094 | // io address var abused as a "already been here" flag |
9095 | emit_readword(&address, 1); |
9096 | emit_writeword(0, &pcaddr); |
9097 | emit_writeword(0, &address); |
9098 | emit_cmp(0, 1); |
9099 | } |
9100 | else { |
9101 | emit_readword(&psxRegs.cpuInRecursion, 1); |
9102 | emit_writeword(0, &pcaddr); |
9103 | emit_test(1, 1); |
9104 | } |
3968e69e |
9105 | #ifdef __aarch64__ |
9106 | emit_jeq(out + 4*2); |
2a014d73 |
9107 | emit_far_jump(new_dyna_leave); |
3968e69e |
9108 | #else |
643aeae3 |
9109 | emit_jne(new_dyna_leave); |
3968e69e |
9110 | #endif |
9ad4d757 |
9111 | } |
57871462 |
9112 | for(i=0;i<slen;i++) |
9113 | { |
9de8a0c3 |
9114 | __builtin_prefetch(regs[i+1].regmap); |
670c0f22 |
9115 | check_regmap(regmap_pre[i]); |
9116 | check_regmap(regs[i].regmap_entry); |
9117 | check_regmap(regs[i].regmap); |
57871462 |
9118 | //if(ds) printf("ds: "); |
4600ba03 |
9119 | disassemble_inst(i); |
57871462 |
9120 | if(ds) { |
9121 | ds=0; // Skip delay slot |
cf95b4f0 |
9122 | if(dops[i].bt) assem_debug("OOPS - branch into delay slot\n"); |
df4dc2b1 |
9123 | instr_addr[i] = NULL; |
57871462 |
9124 | } else { |
ffb0b9e0 |
9125 | speculate_register_values(i); |
57871462 |
9126 | #ifndef DESTRUCTIVE_WRITEBACK |
fe807a8a |
9127 | if (i < 2 || !dops[i-2].is_ujump) |
57871462 |
9128 | { |
ad49de89 |
9129 | wb_valid(regmap_pre[i],regs[i].regmap_entry,dirty_pre,regs[i].wasdirty,unneeded_reg[i]); |
57871462 |
9130 | } |
fe807a8a |
9131 | if((dops[i].itype==CJUMP||dops[i].itype==SJUMP)) { |
f776eb14 |
9132 | dirty_pre=branch_regs[i].dirty; |
9133 | }else{ |
f776eb14 |
9134 | dirty_pre=regs[i].dirty; |
9135 | } |
57871462 |
9136 | #endif |
9137 | // write back |
fe807a8a |
9138 | if (i < 2 || !dops[i-2].is_ujump) |
57871462 |
9139 | { |
ad49de89 |
9140 | wb_invalidate(regmap_pre[i],regs[i].regmap_entry,regs[i].wasdirty,unneeded_reg[i]); |
57871462 |
9141 | loop_preload(regmap_pre[i],regs[i].regmap_entry); |
9142 | } |
9143 | // branch target entry point |
df4dc2b1 |
9144 | instr_addr[i] = out; |
57871462 |
9145 | assem_debug("<->\n"); |
277718fa |
9146 | drc_dbg_emit_do_cmp(i, cinfo[i].ccadj); |
7f94b097 |
9147 | if (clear_hack_addr) { |
9148 | emit_movimm(0, 0); |
9149 | emit_writeword(0, &hack_addr); |
9150 | clear_hack_addr = 0; |
9151 | } |
dd114d7d |
9152 | |
57871462 |
9153 | // load regs |
9154 | if(regs[i].regmap_entry[HOST_CCREG]==CCREG&®s[i].regmap[HOST_CCREG]!=CCREG) |
ad49de89 |
9155 | wb_register(CCREG,regs[i].regmap_entry,regs[i].wasdirty); |
cf95b4f0 |
9156 | load_regs(regs[i].regmap_entry,regs[i].regmap,dops[i].rs1,dops[i].rs2); |
57871462 |
9157 | address_generation(i,®s[i],regs[i].regmap_entry); |
ad49de89 |
9158 | load_consts(regmap_pre[i],regs[i].regmap,i); |
fe807a8a |
9159 | if(dops[i].is_jump) |
57871462 |
9160 | { |
9161 | // Load the delay slot registers if necessary |
cf95b4f0 |
9162 | if(dops[i+1].rs1!=dops[i].rs1&&dops[i+1].rs1!=dops[i].rs2&&(dops[i+1].rs1!=dops[i].rt1||dops[i].rt1==0)) |
9163 | load_regs(regs[i].regmap_entry,regs[i].regmap,dops[i+1].rs1,dops[i+1].rs1); |
9164 | if(dops[i+1].rs2!=dops[i+1].rs1&&dops[i+1].rs2!=dops[i].rs1&&dops[i+1].rs2!=dops[i].rs2&&(dops[i+1].rs2!=dops[i].rt1||dops[i].rt1==0)) |
9165 | load_regs(regs[i].regmap_entry,regs[i].regmap,dops[i+1].rs2,dops[i+1].rs2); |
37387d8b |
9166 | if (ram_offset && (dops[i+1].is_load || dops[i+1].is_store)) |
53358c1d |
9167 | load_reg(regs[i].regmap_entry,regs[i].regmap,ROREG); |
37387d8b |
9168 | if (dops[i+1].is_store) |
53358c1d |
9169 | load_reg(regs[i].regmap_entry,regs[i].regmap,INVCP); |
57871462 |
9170 | } |
9171 | else if(i+1<slen) |
9172 | { |
9173 | // Preload registers for following instruction |
cf95b4f0 |
9174 | if(dops[i+1].rs1!=dops[i].rs1&&dops[i+1].rs1!=dops[i].rs2) |
9175 | if(dops[i+1].rs1!=dops[i].rt1&&dops[i+1].rs1!=dops[i].rt2) |
9176 | load_regs(regs[i].regmap_entry,regs[i].regmap,dops[i+1].rs1,dops[i+1].rs1); |
9177 | if(dops[i+1].rs2!=dops[i+1].rs1&&dops[i+1].rs2!=dops[i].rs1&&dops[i+1].rs2!=dops[i].rs2) |
9178 | if(dops[i+1].rs2!=dops[i].rt1&&dops[i+1].rs2!=dops[i].rt2) |
9179 | load_regs(regs[i].regmap_entry,regs[i].regmap,dops[i+1].rs2,dops[i+1].rs2); |
57871462 |
9180 | } |
9181 | // TODO: if(is_ooo(i)) address_generation(i+1); |
9a3ccfeb |
9182 | if (!dops[i].is_jump || dops[i].itype == CJUMP) |
53358c1d |
9183 | load_reg(regs[i].regmap_entry,regs[i].regmap,CCREG); |
37387d8b |
9184 | if (ram_offset && (dops[i].is_load || dops[i].is_store)) |
53358c1d |
9185 | load_reg(regs[i].regmap_entry,regs[i].regmap,ROREG); |
37387d8b |
9186 | if (dops[i].is_store) |
53358c1d |
9187 | load_reg(regs[i].regmap_entry,regs[i].regmap,INVCP); |
2330734f |
9188 | |
277718fa |
9189 | ds = assemble(i, ®s[i], cinfo[i].ccadj); |
2330734f |
9190 | |
4f13a577 |
9191 | drc_dbg_emit_wb_dirtys(i, ®s[i]); |
fe807a8a |
9192 | if (dops[i].is_ujump) |
57871462 |
9193 | literal_pool(1024); |
9194 | else |
9195 | literal_pool_jumpover(256); |
9196 | } |
9197 | } |
3d680478 |
9198 | |
9199 | assert(slen > 0); |
cf95b4f0 |
9200 | if (slen > 0 && dops[slen-1].itype == INTCALL) { |
3d680478 |
9201 | // no ending needed for this block since INTCALL never returns |
9202 | } |
57871462 |
9203 | // If the block did not end with an unconditional branch, |
9204 | // add a jump to the next instruction. |
3d680478 |
9205 | else if (i > 1) { |
4bdc30ab |
9206 | if (!dops[i-2].is_ujump) { |
fe807a8a |
9207 | assert(!dops[i-1].is_jump); |
57871462 |
9208 | assert(i==slen); |
cf95b4f0 |
9209 | if(dops[i-2].itype!=CJUMP&&dops[i-2].itype!=SJUMP) { |
ad49de89 |
9210 | store_regs_bt(regs[i-1].regmap,regs[i-1].dirty,start+i*4); |
57871462 |
9211 | if(regs[i-1].regmap[HOST_CCREG]!=CCREG) |
9212 | emit_loadreg(CCREG,HOST_CCREG); |
277718fa |
9213 | emit_addimm(HOST_CCREG, cinfo[i-1].ccadj + CLOCK_ADJUST(1), HOST_CCREG); |
57871462 |
9214 | } |
fe807a8a |
9215 | else |
57871462 |
9216 | { |
ad49de89 |
9217 | store_regs_bt(branch_regs[i-2].regmap,branch_regs[i-2].dirty,start+i*4); |
57871462 |
9218 | assert(branch_regs[i-2].regmap[HOST_CCREG]==CCREG); |
9219 | } |
643aeae3 |
9220 | add_to_linker(out,start+i*4,0); |
57871462 |
9221 | emit_jmp(0); |
9222 | } |
9223 | } |
9224 | else |
9225 | { |
9226 | assert(i>0); |
fe807a8a |
9227 | assert(!dops[i-1].is_jump); |
ad49de89 |
9228 | store_regs_bt(regs[i-1].regmap,regs[i-1].dirty,start+i*4); |
57871462 |
9229 | if(regs[i-1].regmap[HOST_CCREG]!=CCREG) |
9230 | emit_loadreg(CCREG,HOST_CCREG); |
277718fa |
9231 | emit_addimm(HOST_CCREG, cinfo[i-1].ccadj + CLOCK_ADJUST(1), HOST_CCREG); |
643aeae3 |
9232 | add_to_linker(out,start+i*4,0); |
57871462 |
9233 | emit_jmp(0); |
9234 | } |
9235 | |
57871462 |
9236 | // Stubs |
a5cd72d0 |
9237 | for(i = 0; i < stubcount; i++) |
57871462 |
9238 | { |
b14b6a8f |
9239 | switch(stubs[i].type) |
57871462 |
9240 | { |
9241 | case LOADB_STUB: |
9242 | case LOADH_STUB: |
9243 | case LOADW_STUB: |
57871462 |
9244 | case LOADBU_STUB: |
9245 | case LOADHU_STUB: |
9246 | do_readstub(i);break; |
9247 | case STOREB_STUB: |
9248 | case STOREH_STUB: |
9249 | case STOREW_STUB: |
57871462 |
9250 | do_writestub(i);break; |
9251 | case CC_STUB: |
9252 | do_ccstub(i);break; |
9253 | case INVCODE_STUB: |
9254 | do_invstub(i);break; |
57871462 |
9255 | case STORELR_STUB: |
9256 | do_unalignedwritestub(i);break; |
a5cd72d0 |
9257 | case OVERFLOW_STUB: |
9258 | do_overflowstub(i); break; |
277718fa |
9259 | case ALIGNMENT_STUB: |
9260 | do_alignmentstub(i); break; |
a5cd72d0 |
9261 | default: |
9262 | assert(0); |
57871462 |
9263 | } |
9264 | } |
9265 | |
9ad4d757 |
9266 | if (instr_addr0_override) |
9267 | instr_addr[0] = instr_addr0_override; |
9268 | |
93c0345b |
9269 | #if 0 |
9270 | /* check for improper expiration */ |
9271 | for (i = 0; i < ARRAY_SIZE(jumps); i++) { |
9272 | int j; |
9273 | if (!jumps[i]) |
9274 | continue; |
9275 | for (j = 0; j < jumps[i]->count; j++) |
9276 | assert(jumps[i]->e[j].stub < beginning || (u_char *)jumps[i]->e[j].stub > out); |
9277 | } |
9278 | #endif |
9279 | |
57871462 |
9280 | /* Pass 9 - Linker */ |
9281 | for(i=0;i<linkcount;i++) |
9282 | { |
643aeae3 |
9283 | assem_debug("%p -> %8x\n",link_addr[i].addr,link_addr[i].target); |
57871462 |
9284 | literal_pool(64); |
104df9d3 |
9285 | if (!link_addr[i].internal) |
57871462 |
9286 | { |
643aeae3 |
9287 | void *stub = out; |
9288 | void *addr = check_addr(link_addr[i].target); |
9289 | emit_extjump(link_addr[i].addr, link_addr[i].target); |
9290 | if (addr) { |
9291 | set_jump_target(link_addr[i].addr, addr); |
104df9d3 |
9292 | ndrc_add_jump_out(link_addr[i].target,stub); |
57871462 |
9293 | } |
643aeae3 |
9294 | else |
9295 | set_jump_target(link_addr[i].addr, stub); |
57871462 |
9296 | } |
9297 | else |
9298 | { |
9299 | // Internal branch |
643aeae3 |
9300 | int target=(link_addr[i].target-start)>>2; |
57871462 |
9301 | assert(target>=0&&target<slen); |
9302 | assert(instr_addr[target]); |
9303 | //#ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
643aeae3 |
9304 | //set_jump_target_fillslot(link_addr[i].addr,instr_addr[target],link_addr[i].ext>>1); |
57871462 |
9305 | //#else |
643aeae3 |
9306 | set_jump_target(link_addr[i].addr, instr_addr[target]); |
57871462 |
9307 | //#endif |
9308 | } |
9309 | } |
3d680478 |
9310 | |
9311 | u_int source_len = slen*4; |
cf95b4f0 |
9312 | if (dops[slen-1].itype == INTCALL && source_len > 4) |
3d680478 |
9313 | // no need to treat the last instruction as compiled |
9314 | // as interpreter fully handles it |
9315 | source_len -= 4; |
9316 | |
9317 | if ((u_char *)copy + source_len > (u_char *)shadow + sizeof(shadow)) |
9318 | copy = shadow; |
9319 | |
57871462 |
9320 | // External Branch Targets (jump_in) |
104df9d3 |
9321 | int jump_in_count = 1; |
9322 | assert(instr_addr[0]); |
9323 | for (i = 1; i < slen; i++) |
9324 | { |
9325 | if (dops[i].bt && instr_addr[i]) |
9326 | jump_in_count++; |
9327 | } |
9328 | |
9329 | struct block_info *block = |
9330 | new_block_info(start, slen * 4, source, copy, beginning, jump_in_count); |
9331 | block->reg_sv_flags = state_rflags; |
9332 | |
9333 | int jump_in_i = 0; |
9334 | for (i = 0; i < slen; i++) |
57871462 |
9335 | { |
104df9d3 |
9336 | if ((i == 0 || dops[i].bt) && instr_addr[i]) |
57871462 |
9337 | { |
104df9d3 |
9338 | assem_debug("%p (%d) <- %8x\n", instr_addr[i], i, start + i*4); |
9339 | u_int vaddr = start + i*4; |
9340 | |
9341 | literal_pool(256); |
9342 | void *entry = out; |
9343 | load_regs_entry(i); |
9344 | if (entry == out) |
9345 | entry = instr_addr[i]; |
9346 | else |
9347 | emit_jmp(instr_addr[i]); |
9348 | |
9349 | block->jump_in[jump_in_i].vaddr = vaddr; |
9350 | block->jump_in[jump_in_i].addr = entry; |
9351 | jump_in_i++; |
57871462 |
9352 | } |
9353 | } |
104df9d3 |
9354 | assert(jump_in_i == jump_in_count); |
9355 | hash_table_add(block->jump_in[0].vaddr, block->jump_in[0].addr); |
57871462 |
9356 | // Write out the literal pool if necessary |
9357 | literal_pool(0); |
9358 | #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
9359 | // Align code |
9360 | if(((u_int)out)&7) emit_addnop(13); |
9361 | #endif |
01d26796 |
9362 | assert(out - (u_char *)beginning < MAX_OUTPUT_BLOCK_SIZE); |
643aeae3 |
9363 | //printf("shadow buffer: %p-%p\n",copy,(u_char *)copy+slen*4); |
3d680478 |
9364 | memcpy(copy, source, source_len); |
9365 | copy += source_len; |
9f51b4b9 |
9366 | |
d148d265 |
9367 | end_block(beginning); |
9f51b4b9 |
9368 | |
57871462 |
9369 | // If we're within 256K of the end of the buffer, |
9370 | // start over from the beginning. (Is 256K enough?) |
2a014d73 |
9371 | if (out > ndrc->translation_cache + sizeof(ndrc->translation_cache) - MAX_OUTPUT_BLOCK_SIZE) |
9372 | out = ndrc->translation_cache; |
9f51b4b9 |
9373 | |
57871462 |
9374 | // Trap writes to any of the pages we compiled |
104df9d3 |
9375 | mark_invalid_code(start, slen*4, 0); |
9f51b4b9 |
9376 | |
57871462 |
9377 | /* Pass 10 - Free memory by expiring oldest blocks */ |
9f51b4b9 |
9378 | |
4149788d |
9379 | pass10_expire_blocks(); |
9380 | |
37387d8b |
9381 | #ifdef ASSEM_PRINT |
9382 | fflush(stdout); |
9383 | #endif |
ece032e6 |
9384 | stat_inc(stat_bc_direct); |
57871462 |
9385 | return 0; |
9386 | } |
b9b61529 |
9387 | |
9388 | // vim:shiftwidth=2:expandtab |