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 |
32 | #ifdef VITA |
33 | #include <psp2/kernel/sysmem.h> |
34 | static int sceBlock; |
35 | #endif |
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36 | |
d148d265 |
37 | #include "new_dynarec_config.h" |
3968e69e |
38 | #include "../psxhle.h" |
39 | #include "../psxinterpreter.h" |
81dbbf4c |
40 | #include "../gte.h" |
41 | #include "emu_if.h" // emulator interface |
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42 | |
d1e4ebd9 |
43 | #define noinline __attribute__((noinline,noclone)) |
b14b6a8f |
44 | #ifndef ARRAY_SIZE |
45 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) |
46 | #endif |
e3c6bdb5 |
47 | #ifndef min |
48 | #define min(a, b) ((b) < (a) ? (b) : (a)) |
49 | #endif |
b14b6a8f |
50 | |
4600ba03 |
51 | //#define DISASM |
52 | //#define assem_debug printf |
53 | //#define inv_debug printf |
54 | #define assem_debug(...) |
55 | #define inv_debug(...) |
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56 | |
57 | #ifdef __i386__ |
58 | #include "assem_x86.h" |
59 | #endif |
60 | #ifdef __x86_64__ |
61 | #include "assem_x64.h" |
62 | #endif |
63 | #ifdef __arm__ |
64 | #include "assem_arm.h" |
65 | #endif |
be516ebe |
66 | #ifdef __aarch64__ |
67 | #include "assem_arm64.h" |
68 | #endif |
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69 | |
81dbbf4c |
70 | #define RAM_SIZE 0x200000 |
57871462 |
71 | #define MAXBLOCK 4096 |
72 | #define MAX_OUTPUT_BLOCK_SIZE 262144 |
2573466a |
73 | |
2a014d73 |
74 | struct ndrc_mem |
75 | { |
76 | u_char translation_cache[1 << TARGET_SIZE_2]; |
77 | struct |
78 | { |
79 | struct tramp_insns ops[2048 / sizeof(struct tramp_insns)]; |
80 | const void *f[2048 / sizeof(void *)]; |
81 | } tramp; |
82 | }; |
83 | |
84 | #ifdef BASE_ADDR_DYNAMIC |
85 | static struct ndrc_mem *ndrc; |
86 | #else |
87 | static struct ndrc_mem ndrc_ __attribute__((aligned(4096))); |
88 | static struct ndrc_mem *ndrc = &ndrc_; |
89 | #endif |
90 | |
b14b6a8f |
91 | // stubs |
92 | enum stub_type { |
93 | CC_STUB = 1, |
94 | FP_STUB = 2, |
95 | LOADB_STUB = 3, |
96 | LOADH_STUB = 4, |
97 | LOADW_STUB = 5, |
98 | LOADD_STUB = 6, |
99 | LOADBU_STUB = 7, |
100 | LOADHU_STUB = 8, |
101 | STOREB_STUB = 9, |
102 | STOREH_STUB = 10, |
103 | STOREW_STUB = 11, |
104 | STORED_STUB = 12, |
105 | STORELR_STUB = 13, |
106 | INVCODE_STUB = 14, |
107 | }; |
108 | |
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109 | struct regstat |
110 | { |
111 | signed char regmap_entry[HOST_REGS]; |
112 | signed char regmap[HOST_REGS]; |
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113 | uint64_t wasdirty; |
114 | uint64_t dirty; |
115 | uint64_t u; |
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116 | u_int wasconst; |
117 | u_int isconst; |
8575a877 |
118 | u_int loadedconst; // host regs that have constants loaded |
119 | u_int waswritten; // MIPS regs that were used as store base before |
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120 | }; |
121 | |
de5a60c3 |
122 | // note: asm depends on this layout |
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123 | struct ll_entry |
124 | { |
125 | u_int vaddr; |
de5a60c3 |
126 | u_int reg_sv_flags; |
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127 | void *addr; |
128 | struct ll_entry *next; |
129 | }; |
130 | |
df4dc2b1 |
131 | struct ht_entry |
132 | { |
133 | u_int vaddr[2]; |
134 | void *tcaddr[2]; |
135 | }; |
136 | |
b14b6a8f |
137 | struct code_stub |
138 | { |
139 | enum stub_type type; |
140 | void *addr; |
141 | void *retaddr; |
142 | u_int a; |
143 | uintptr_t b; |
144 | uintptr_t c; |
145 | u_int d; |
146 | u_int e; |
147 | }; |
148 | |
643aeae3 |
149 | struct link_entry |
150 | { |
151 | void *addr; |
152 | u_int target; |
153 | u_int ext; |
154 | }; |
155 | |
e2b5e7aa |
156 | // used by asm: |
157 | u_char *out; |
df4dc2b1 |
158 | struct ht_entry hash_table[65536] __attribute__((aligned(16))); |
e2b5e7aa |
159 | struct ll_entry *jump_in[4096] __attribute__((aligned(16))); |
160 | struct ll_entry *jump_dirty[4096]; |
161 | |
162 | static struct ll_entry *jump_out[4096]; |
163 | static u_int start; |
164 | static u_int *source; |
165 | static char insn[MAXBLOCK][10]; |
166 | static u_char itype[MAXBLOCK]; |
167 | static u_char opcode[MAXBLOCK]; |
168 | static u_char opcode2[MAXBLOCK]; |
169 | static u_char bt[MAXBLOCK]; |
170 | static u_char rs1[MAXBLOCK]; |
171 | static u_char rs2[MAXBLOCK]; |
172 | static u_char rt1[MAXBLOCK]; |
173 | static u_char rt2[MAXBLOCK]; |
e2b5e7aa |
174 | static u_char dep1[MAXBLOCK]; |
175 | static u_char dep2[MAXBLOCK]; |
176 | static u_char lt1[MAXBLOCK]; |
bedfea38 |
177 | static uint64_t gte_rs[MAXBLOCK]; // gte: 32 data and 32 ctl regs |
178 | static uint64_t gte_rt[MAXBLOCK]; |
179 | static uint64_t gte_unneeded[MAXBLOCK]; |
ffb0b9e0 |
180 | static u_int smrv[32]; // speculated MIPS register values |
181 | static u_int smrv_strong; // mask or regs that are likely to have correct values |
182 | static u_int smrv_weak; // same, but somewhat less likely |
183 | static u_int smrv_strong_next; // same, but after current insn executes |
184 | static u_int smrv_weak_next; |
e2b5e7aa |
185 | static int imm[MAXBLOCK]; |
186 | static u_int ba[MAXBLOCK]; |
187 | static char likely[MAXBLOCK]; |
188 | static char is_ds[MAXBLOCK]; |
189 | static char ooo[MAXBLOCK]; |
190 | static uint64_t unneeded_reg[MAXBLOCK]; |
e2b5e7aa |
191 | static uint64_t branch_unneeded_reg[MAXBLOCK]; |
afec9d44 |
192 | static signed char regmap_pre[MAXBLOCK][HOST_REGS]; // pre-instruction i? |
40fca85b |
193 | // contains 'real' consts at [i] insn, but may differ from what's actually |
194 | // loaded in host reg as 'final' value is always loaded, see get_final_value() |
195 | static uint32_t current_constmap[HOST_REGS]; |
196 | static uint32_t constmap[MAXBLOCK][HOST_REGS]; |
956f3129 |
197 | static struct regstat regs[MAXBLOCK]; |
198 | static struct regstat branch_regs[MAXBLOCK]; |
e2b5e7aa |
199 | static signed char minimum_free_regs[MAXBLOCK]; |
200 | static u_int needed_reg[MAXBLOCK]; |
201 | static u_int wont_dirty[MAXBLOCK]; |
202 | static u_int will_dirty[MAXBLOCK]; |
203 | static int ccadj[MAXBLOCK]; |
204 | static int slen; |
df4dc2b1 |
205 | static void *instr_addr[MAXBLOCK]; |
643aeae3 |
206 | static struct link_entry link_addr[MAXBLOCK]; |
e2b5e7aa |
207 | static int linkcount; |
b14b6a8f |
208 | static struct code_stub stubs[MAXBLOCK*3]; |
e2b5e7aa |
209 | static int stubcount; |
210 | static u_int literals[1024][2]; |
211 | static int literalcount; |
212 | static int is_delayslot; |
e2b5e7aa |
213 | static char shadow[1048576] __attribute__((aligned(16))); |
214 | static void *copy; |
215 | static int expirep; |
216 | static u_int stop_after_jal; |
a327ad27 |
217 | #ifndef RAM_FIXED |
01d26796 |
218 | static uintptr_t ram_offset; |
a327ad27 |
219 | #else |
01d26796 |
220 | static const uintptr_t ram_offset=0; |
a327ad27 |
221 | #endif |
e2b5e7aa |
222 | |
223 | int new_dynarec_hacks; |
d62c125a |
224 | int new_dynarec_hacks_pergame; |
e2b5e7aa |
225 | int new_dynarec_did_compile; |
687b4580 |
226 | |
d62c125a |
227 | #define HACK_ENABLED(x) ((new_dynarec_hacks | new_dynarec_hacks_pergame) & (x)) |
228 | |
687b4580 |
229 | extern int cycle_count; // ... until end of the timeslice, counts -N -> 0 |
230 | extern int last_count; // last absolute target, often = next_interupt |
231 | extern int pcaddr; |
232 | extern int pending_exception; |
233 | extern int branch_target; |
d1e4ebd9 |
234 | extern uintptr_t mini_ht[32][2]; |
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235 | extern u_char restore_candidate[512]; |
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236 | |
237 | /* registers that may be allocated */ |
238 | /* 1-31 gpr */ |
7c3a5182 |
239 | #define LOREG 32 // lo |
240 | #define HIREG 33 // hi |
00fa9369 |
241 | //#define FSREG 34 // FPU status (FCSR) |
57871462 |
242 | #define CSREG 35 // Coprocessor status |
243 | #define CCREG 36 // Cycle count |
244 | #define INVCP 37 // Pointer to invalid_code |
1edfcc68 |
245 | //#define MMREG 38 // Pointer to memory_map |
9c45ca93 |
246 | //#define ROREG 39 // ram offset (if rdram!=0x80000000) |
619e5ded |
247 | #define TEMPREG 40 |
248 | #define FTEMP 40 // FPU temporary register |
249 | #define PTEMP 41 // Prefetch temporary register |
1edfcc68 |
250 | //#define TLREG 42 // TLB mapping offset |
619e5ded |
251 | #define RHASH 43 // Return address hash |
252 | #define RHTBL 44 // Return address hash table address |
253 | #define RTEMP 45 // JR/JALR address register |
254 | #define MAXREG 45 |
255 | #define AGEN1 46 // Address generation temporary register |
1edfcc68 |
256 | //#define AGEN2 47 // Address generation temporary register |
257 | //#define MGEN1 48 // Maptable address generation temporary register |
258 | //#define MGEN2 49 // Maptable address generation temporary register |
619e5ded |
259 | #define BTREG 50 // Branch target temporary register |
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260 | |
261 | /* instruction types */ |
262 | #define NOP 0 // No operation |
263 | #define LOAD 1 // Load |
264 | #define STORE 2 // Store |
265 | #define LOADLR 3 // Unaligned load |
266 | #define STORELR 4 // Unaligned store |
9f51b4b9 |
267 | #define MOV 5 // Move |
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268 | #define ALU 6 // Arithmetic/logic |
269 | #define MULTDIV 7 // Multiply/divide |
270 | #define SHIFT 8 // Shift by register |
271 | #define SHIFTIMM 9// Shift by immediate |
272 | #define IMM16 10 // 16-bit immediate |
273 | #define RJUMP 11 // Unconditional jump to register |
274 | #define UJUMP 12 // Unconditional jump |
275 | #define CJUMP 13 // Conditional branch (BEQ/BNE/BGTZ/BLEZ) |
276 | #define SJUMP 14 // Conditional branch (regimm format) |
277 | #define COP0 15 // Coprocessor 0 |
278 | #define COP1 16 // Coprocessor 1 |
279 | #define C1LS 17 // Coprocessor 1 load/store |
ad49de89 |
280 | //#define FJUMP 18 // Conditional branch (floating point) |
00fa9369 |
281 | //#define FLOAT 19 // Floating point unit |
282 | //#define FCONV 20 // Convert integer to float |
283 | //#define FCOMP 21 // Floating point compare (sets FSREG) |
57871462 |
284 | #define SYSCALL 22// SYSCALL |
285 | #define OTHER 23 // Other |
286 | #define SPAN 24 // Branch/delay slot spans 2 pages |
287 | #define NI 25 // Not implemented |
7139f3c8 |
288 | #define HLECALL 26// PCSX fake opcodes for HLE |
b9b61529 |
289 | #define COP2 27 // Coprocessor 2 move |
290 | #define C2LS 28 // Coprocessor 2 load/store |
291 | #define C2OP 29 // Coprocessor 2 operation |
1e973cb0 |
292 | #define INTCALL 30// Call interpreter to handle rare corner cases |
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293 | |
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294 | /* branch codes */ |
295 | #define TAKEN 1 |
296 | #define NOTTAKEN 2 |
297 | #define NULLDS 3 |
298 | |
7c3a5182 |
299 | #define DJT_1 (void *)1l // no function, just a label in assem_debug log |
300 | #define DJT_2 (void *)2l |
301 | |
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302 | // asm linkage |
3968e69e |
303 | int new_recompile_block(u_int addr); |
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304 | void *get_addr_ht(u_int vaddr); |
305 | void invalidate_block(u_int block); |
306 | void invalidate_addr(u_int addr); |
307 | void remove_hash(int vaddr); |
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308 | void dyna_linker(); |
309 | void dyna_linker_ds(); |
310 | void verify_code(); |
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311 | void verify_code_ds(); |
312 | void cc_interrupt(); |
313 | void fp_exception(); |
314 | void fp_exception_ds(); |
3968e69e |
315 | void jump_to_new_pc(); |
81dbbf4c |
316 | void call_gteStall(); |
7139f3c8 |
317 | void new_dyna_leave(); |
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318 | |
57871462 |
319 | // Needed by assembler |
ad49de89 |
320 | static void wb_register(signed char r,signed char regmap[],uint64_t dirty); |
321 | static void wb_dirtys(signed char i_regmap[],uint64_t i_dirty); |
322 | static void wb_needed_dirtys(signed char i_regmap[],uint64_t i_dirty,int addr); |
e2b5e7aa |
323 | static void load_all_regs(signed char i_regmap[]); |
324 | static void load_needed_regs(signed char i_regmap[],signed char next_regmap[]); |
325 | static void load_regs_entry(int t); |
ad49de89 |
326 | static void load_all_consts(signed char regmap[],u_int dirty,int i); |
81dbbf4c |
327 | static u_int get_host_reglist(const signed char *regmap); |
e2b5e7aa |
328 | |
3968e69e |
329 | static int verify_dirty(const u_int *ptr); |
e2b5e7aa |
330 | static int get_final_value(int hr, int i, int *value); |
b14b6a8f |
331 | static void add_stub(enum stub_type type, void *addr, void *retaddr, |
332 | u_int a, uintptr_t b, uintptr_t c, u_int d, u_int e); |
333 | static void add_stub_r(enum stub_type type, void *addr, void *retaddr, |
81dbbf4c |
334 | int i, int addr_reg, const struct regstat *i_regs, int ccadj, u_int reglist); |
643aeae3 |
335 | static void add_to_linker(void *addr, u_int target, int ext); |
8062d65a |
336 | static void *emit_fastpath_cmp_jump(int i,int addr,int *addr_reg_override); |
687b4580 |
337 | static void *get_direct_memhandler(void *table, u_int addr, |
338 | enum stub_type type, uintptr_t *addr_host); |
81dbbf4c |
339 | static void cop2_call_stall_check(u_int op, int i, const struct regstat *i_regs, u_int reglist); |
687b4580 |
340 | static void pass_args(int a0, int a1); |
2a014d73 |
341 | static void emit_far_jump(const void *f); |
342 | static void emit_far_call(const void *f); |
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343 | |
d148d265 |
344 | static void mprotect_w_x(void *start, void *end, int is_x) |
345 | { |
346 | #ifdef NO_WRITE_EXEC |
1e212a25 |
347 | #if defined(VITA) |
348 | // *Open* enables write on all memory that was |
349 | // allocated by sceKernelAllocMemBlockForVM()? |
350 | if (is_x) |
351 | sceKernelCloseVMDomain(); |
352 | else |
353 | sceKernelOpenVMDomain(); |
354 | #else |
d148d265 |
355 | u_long mstart = (u_long)start & ~4095ul; |
356 | u_long mend = (u_long)end; |
357 | if (mprotect((void *)mstart, mend - mstart, |
358 | PROT_READ | (is_x ? PROT_EXEC : PROT_WRITE)) != 0) |
359 | SysPrintf("mprotect(%c) failed: %s\n", is_x ? 'x' : 'w', strerror(errno)); |
1e212a25 |
360 | #endif |
d148d265 |
361 | #endif |
362 | } |
363 | |
364 | static void start_tcache_write(void *start, void *end) |
365 | { |
366 | mprotect_w_x(start, end, 0); |
367 | } |
368 | |
369 | static void end_tcache_write(void *start, void *end) |
370 | { |
919981d0 |
371 | #if defined(__arm__) || defined(__aarch64__) |
d148d265 |
372 | size_t len = (char *)end - (char *)start; |
373 | #if defined(__BLACKBERRY_QNX__) |
374 | msync(start, len, MS_SYNC | MS_CACHE_ONLY | MS_INVALIDATE_ICACHE); |
375 | #elif defined(__MACH__) |
376 | sys_cache_control(kCacheFunctionPrepareForExecution, start, len); |
377 | #elif defined(VITA) |
1e212a25 |
378 | sceKernelSyncVMDomain(sceBlock, start, len); |
379 | #elif defined(_3DS) |
380 | ctr_flush_invalidate_cache(); |
919981d0 |
381 | #elif defined(__aarch64__) |
382 | // as of 2021, __clear_cache() is still broken on arm64 |
383 | // so here is a custom one :( |
384 | clear_cache_arm64(start, end); |
d148d265 |
385 | #else |
386 | __clear_cache(start, end); |
387 | #endif |
388 | (void)len; |
389 | #endif |
390 | |
391 | mprotect_w_x(start, end, 1); |
392 | } |
393 | |
394 | static void *start_block(void) |
395 | { |
396 | u_char *end = out + MAX_OUTPUT_BLOCK_SIZE; |
2a014d73 |
397 | if (end > ndrc->translation_cache + sizeof(ndrc->translation_cache)) |
398 | end = ndrc->translation_cache + sizeof(ndrc->translation_cache); |
d148d265 |
399 | start_tcache_write(out, end); |
400 | return out; |
401 | } |
402 | |
403 | static void end_block(void *start) |
404 | { |
405 | end_tcache_write(start, out); |
406 | } |
407 | |
919981d0 |
408 | // also takes care of w^x mappings when patching code |
409 | static u_int needs_clear_cache[1<<(TARGET_SIZE_2-17)]; |
410 | |
411 | static void mark_clear_cache(void *target) |
412 | { |
413 | uintptr_t offset = (u_char *)target - ndrc->translation_cache; |
414 | u_int mask = 1u << ((offset >> 12) & 31); |
415 | if (!(needs_clear_cache[offset >> 17] & mask)) { |
416 | char *start = (char *)((uintptr_t)target & ~4095l); |
417 | start_tcache_write(start, start + 4095); |
418 | needs_clear_cache[offset >> 17] |= mask; |
419 | } |
420 | } |
421 | |
422 | // Clearing the cache is rather slow on ARM Linux, so mark the areas |
423 | // that need to be cleared, and then only clear these areas once. |
424 | static void do_clear_cache(void) |
425 | { |
426 | int i, j; |
427 | for (i = 0; i < (1<<(TARGET_SIZE_2-17)); i++) |
428 | { |
429 | u_int bitmap = needs_clear_cache[i]; |
430 | if (!bitmap) |
431 | continue; |
432 | for (j = 0; j < 32; j++) |
433 | { |
434 | u_char *start, *end; |
435 | if (!(bitmap & (1<<j))) |
436 | continue; |
437 | |
438 | start = ndrc->translation_cache + i*131072 + j*4096; |
439 | end = start + 4095; |
440 | for (j++; j < 32; j++) { |
441 | if (!(bitmap & (1<<j))) |
442 | break; |
443 | end += 4096; |
444 | } |
445 | end_tcache_write(start, end); |
446 | } |
447 | needs_clear_cache[i] = 0; |
448 | } |
449 | } |
450 | |
57871462 |
451 | //#define DEBUG_CYCLE_COUNT 1 |
452 | |
b6e87b2b |
453 | #define NO_CYCLE_PENALTY_THR 12 |
454 | |
4e9dcd7f |
455 | int cycle_multiplier; // 100 for 1.0 |
a3203cf4 |
456 | int cycle_multiplier_override; |
4e9dcd7f |
457 | |
458 | static int CLOCK_ADJUST(int x) |
459 | { |
a3203cf4 |
460 | int m = cycle_multiplier_override |
461 | ? cycle_multiplier_override : cycle_multiplier; |
4e9dcd7f |
462 | int s=(x>>31)|1; |
a3203cf4 |
463 | return (x * m + s * 50) / 100; |
4e9dcd7f |
464 | } |
465 | |
07cd0bc4 |
466 | // is the op an unconditional jump? |
467 | static int is_ujump(int i) |
468 | { |
469 | return itype[i] == UJUMP || itype[i] == RJUMP |
470 | || (source[i] >> 16) == 0x1000; // beq r0, r0, offset // b offset |
471 | } |
472 | |
473 | static int is_jump(int i) |
474 | { |
475 | return itype[i] == RJUMP || itype[i] == UJUMP || itype[i] == CJUMP || itype[i] == SJUMP; |
476 | } |
477 | |
94d23bb9 |
478 | static u_int get_page(u_int vaddr) |
57871462 |
479 | { |
0ce47d46 |
480 | u_int page=vaddr&~0xe0000000; |
481 | if (page < 0x1000000) |
482 | page &= ~0x0e00000; // RAM mirrors |
483 | page>>=12; |
57871462 |
484 | if(page>2048) page=2048+(page&2047); |
94d23bb9 |
485 | return page; |
486 | } |
487 | |
d25604ca |
488 | // no virtual mem in PCSX |
489 | static u_int get_vpage(u_int vaddr) |
490 | { |
491 | return get_page(vaddr); |
492 | } |
94d23bb9 |
493 | |
df4dc2b1 |
494 | static struct ht_entry *hash_table_get(u_int vaddr) |
495 | { |
496 | return &hash_table[((vaddr>>16)^vaddr)&0xFFFF]; |
497 | } |
498 | |
499 | static void hash_table_add(struct ht_entry *ht_bin, u_int vaddr, void *tcaddr) |
500 | { |
501 | ht_bin->vaddr[1] = ht_bin->vaddr[0]; |
502 | ht_bin->tcaddr[1] = ht_bin->tcaddr[0]; |
503 | ht_bin->vaddr[0] = vaddr; |
504 | ht_bin->tcaddr[0] = tcaddr; |
505 | } |
506 | |
507 | // some messy ari64's code, seems to rely on unsigned 32bit overflow |
508 | static int doesnt_expire_soon(void *tcaddr) |
509 | { |
510 | u_int diff = (u_int)((u_char *)tcaddr - out) << (32-TARGET_SIZE_2); |
511 | return diff > (u_int)(0x60000000 + (MAX_OUTPUT_BLOCK_SIZE << (32-TARGET_SIZE_2))); |
512 | } |
513 | |
94d23bb9 |
514 | // Get address from virtual address |
515 | // This is called from the recompiled JR/JALR instructions |
d1e4ebd9 |
516 | void noinline *get_addr(u_int vaddr) |
94d23bb9 |
517 | { |
518 | u_int page=get_page(vaddr); |
519 | u_int vpage=get_vpage(vaddr); |
57871462 |
520 | struct ll_entry *head; |
521 | //printf("TRACE: count=%d next=%d (get_addr %x,page %d)\n",Count,next_interupt,vaddr,page); |
522 | head=jump_in[page]; |
523 | while(head!=NULL) { |
de5a60c3 |
524 | if(head->vaddr==vaddr) { |
643aeae3 |
525 | //printf("TRACE: count=%d next=%d (get_addr match %x: %p)\n",Count,next_interupt,vaddr,head->addr); |
df4dc2b1 |
526 | hash_table_add(hash_table_get(vaddr), vaddr, head->addr); |
57871462 |
527 | return head->addr; |
528 | } |
529 | head=head->next; |
530 | } |
531 | head=jump_dirty[vpage]; |
532 | while(head!=NULL) { |
de5a60c3 |
533 | if(head->vaddr==vaddr) { |
643aeae3 |
534 | //printf("TRACE: count=%d next=%d (get_addr match dirty %x: %p)\n",Count,next_interupt,vaddr,head->addr); |
57871462 |
535 | // Don't restore blocks which are about to expire from the cache |
df4dc2b1 |
536 | if (doesnt_expire_soon(head->addr)) |
537 | if (verify_dirty(head->addr)) { |
57871462 |
538 | //printf("restore candidate: %x (%d) d=%d\n",vaddr,page,invalid_code[vaddr>>12]); |
539 | invalid_code[vaddr>>12]=0; |
9be4ba64 |
540 | inv_code_start=inv_code_end=~0; |
57871462 |
541 | if(vpage<2048) { |
57871462 |
542 | restore_candidate[vpage>>3]|=1<<(vpage&7); |
543 | } |
544 | else restore_candidate[page>>3]|=1<<(page&7); |
df4dc2b1 |
545 | struct ht_entry *ht_bin = hash_table_get(vaddr); |
546 | if (ht_bin->vaddr[0] == vaddr) |
547 | ht_bin->tcaddr[0] = head->addr; // Replace existing entry |
57871462 |
548 | else |
df4dc2b1 |
549 | hash_table_add(ht_bin, vaddr, head->addr); |
550 | |
57871462 |
551 | return head->addr; |
552 | } |
553 | } |
554 | head=head->next; |
555 | } |
556 | //printf("TRACE: count=%d next=%d (get_addr no-match %x)\n",Count,next_interupt,vaddr); |
557 | int r=new_recompile_block(vaddr); |
558 | if(r==0) return get_addr(vaddr); |
559 | // Execute in unmapped page, generate pagefault execption |
560 | Status|=2; |
561 | Cause=(vaddr<<31)|0x8; |
562 | EPC=(vaddr&1)?vaddr-5:vaddr; |
563 | BadVAddr=(vaddr&~1); |
564 | Context=(Context&0xFF80000F)|((BadVAddr>>9)&0x007FFFF0); |
565 | EntryHi=BadVAddr&0xFFFFE000; |
566 | return get_addr_ht(0x80000000); |
567 | } |
568 | // Look up address in hash table first |
569 | void *get_addr_ht(u_int vaddr) |
570 | { |
571 | //printf("TRACE: count=%d next=%d (get_addr_ht %x)\n",Count,next_interupt,vaddr); |
df4dc2b1 |
572 | const struct ht_entry *ht_bin = hash_table_get(vaddr); |
573 | if (ht_bin->vaddr[0] == vaddr) return ht_bin->tcaddr[0]; |
574 | if (ht_bin->vaddr[1] == vaddr) return ht_bin->tcaddr[1]; |
57871462 |
575 | return get_addr(vaddr); |
576 | } |
577 | |
57871462 |
578 | void clear_all_regs(signed char regmap[]) |
579 | { |
580 | int hr; |
581 | for (hr=0;hr<HOST_REGS;hr++) regmap[hr]=-1; |
582 | } |
583 | |
d1e4ebd9 |
584 | static signed char get_reg(const signed char regmap[],int r) |
57871462 |
585 | { |
586 | int hr; |
587 | for (hr=0;hr<HOST_REGS;hr++) if(hr!=EXCLUDE_REG&®map[hr]==r) return hr; |
588 | return -1; |
589 | } |
590 | |
591 | // Find a register that is available for two consecutive cycles |
d1e4ebd9 |
592 | static signed char get_reg2(signed char regmap1[], const signed char regmap2[], int r) |
57871462 |
593 | { |
594 | int hr; |
595 | for (hr=0;hr<HOST_REGS;hr++) if(hr!=EXCLUDE_REG&®map1[hr]==r&®map2[hr]==r) return hr; |
596 | return -1; |
597 | } |
598 | |
599 | int count_free_regs(signed char regmap[]) |
600 | { |
601 | int count=0; |
602 | int hr; |
603 | for(hr=0;hr<HOST_REGS;hr++) |
604 | { |
605 | if(hr!=EXCLUDE_REG) { |
606 | if(regmap[hr]<0) count++; |
607 | } |
608 | } |
609 | return count; |
610 | } |
611 | |
612 | void dirty_reg(struct regstat *cur,signed char reg) |
613 | { |
614 | int hr; |
615 | if(!reg) return; |
616 | for (hr=0;hr<HOST_REGS;hr++) { |
617 | if((cur->regmap[hr]&63)==reg) { |
618 | cur->dirty|=1<<hr; |
619 | } |
620 | } |
621 | } |
622 | |
40fca85b |
623 | static void set_const(struct regstat *cur, signed char reg, uint32_t value) |
57871462 |
624 | { |
625 | int hr; |
626 | if(!reg) return; |
627 | for (hr=0;hr<HOST_REGS;hr++) { |
628 | if(cur->regmap[hr]==reg) { |
629 | cur->isconst|=1<<hr; |
956f3129 |
630 | current_constmap[hr]=value; |
57871462 |
631 | } |
57871462 |
632 | } |
633 | } |
634 | |
40fca85b |
635 | static void clear_const(struct regstat *cur, signed char reg) |
57871462 |
636 | { |
637 | int hr; |
638 | if(!reg) return; |
639 | for (hr=0;hr<HOST_REGS;hr++) { |
640 | if((cur->regmap[hr]&63)==reg) { |
641 | cur->isconst&=~(1<<hr); |
642 | } |
643 | } |
644 | } |
645 | |
40fca85b |
646 | static int is_const(struct regstat *cur, signed char reg) |
57871462 |
647 | { |
648 | int hr; |
79c75f1b |
649 | if(reg<0) return 0; |
57871462 |
650 | if(!reg) return 1; |
651 | for (hr=0;hr<HOST_REGS;hr++) { |
652 | if((cur->regmap[hr]&63)==reg) { |
653 | return (cur->isconst>>hr)&1; |
654 | } |
655 | } |
656 | return 0; |
657 | } |
40fca85b |
658 | |
659 | static uint32_t get_const(struct regstat *cur, signed char reg) |
57871462 |
660 | { |
661 | int hr; |
662 | if(!reg) return 0; |
663 | for (hr=0;hr<HOST_REGS;hr++) { |
664 | if(cur->regmap[hr]==reg) { |
956f3129 |
665 | return current_constmap[hr]; |
57871462 |
666 | } |
667 | } |
c43b5311 |
668 | SysPrintf("Unknown constant in r%d\n",reg); |
7c3a5182 |
669 | abort(); |
57871462 |
670 | } |
671 | |
672 | // Least soon needed registers |
673 | // Look at the next ten instructions and see which registers |
674 | // will be used. Try not to reallocate these. |
675 | void lsn(u_char hsn[], int i, int *preferred_reg) |
676 | { |
677 | int j; |
678 | int b=-1; |
679 | for(j=0;j<9;j++) |
680 | { |
681 | if(i+j>=slen) { |
682 | j=slen-i-1; |
683 | break; |
684 | } |
07cd0bc4 |
685 | if (is_ujump(i+j)) |
57871462 |
686 | { |
687 | // Don't go past an unconditonal jump |
688 | j++; |
689 | break; |
690 | } |
691 | } |
692 | for(;j>=0;j--) |
693 | { |
694 | if(rs1[i+j]) hsn[rs1[i+j]]=j; |
695 | if(rs2[i+j]) hsn[rs2[i+j]]=j; |
696 | if(rt1[i+j]) hsn[rt1[i+j]]=j; |
697 | if(rt2[i+j]) hsn[rt2[i+j]]=j; |
698 | if(itype[i+j]==STORE || itype[i+j]==STORELR) { |
699 | // Stores can allocate zero |
700 | hsn[rs1[i+j]]=j; |
701 | hsn[rs2[i+j]]=j; |
702 | } |
703 | // On some architectures stores need invc_ptr |
704 | #if defined(HOST_IMM8) |
b9b61529 |
705 | if(itype[i+j]==STORE || itype[i+j]==STORELR || (opcode[i+j]&0x3b)==0x39 || (opcode[i+j]&0x3b)==0x3a) { |
57871462 |
706 | hsn[INVCP]=j; |
707 | } |
708 | #endif |
ad49de89 |
709 | if(i+j>=0&&(itype[i+j]==UJUMP||itype[i+j]==CJUMP||itype[i+j]==SJUMP)) |
57871462 |
710 | { |
711 | hsn[CCREG]=j; |
712 | b=j; |
713 | } |
714 | } |
715 | if(b>=0) |
716 | { |
717 | if(ba[i+b]>=start && ba[i+b]<(start+slen*4)) |
718 | { |
719 | // Follow first branch |
720 | int t=(ba[i+b]-start)>>2; |
721 | j=7-b;if(t+j>=slen) j=slen-t-1; |
722 | for(;j>=0;j--) |
723 | { |
724 | if(rs1[t+j]) if(hsn[rs1[t+j]]>j+b+2) hsn[rs1[t+j]]=j+b+2; |
725 | if(rs2[t+j]) if(hsn[rs2[t+j]]>j+b+2) hsn[rs2[t+j]]=j+b+2; |
726 | //if(rt1[t+j]) if(hsn[rt1[t+j]]>j+b+2) hsn[rt1[t+j]]=j+b+2; |
727 | //if(rt2[t+j]) if(hsn[rt2[t+j]]>j+b+2) hsn[rt2[t+j]]=j+b+2; |
728 | } |
729 | } |
730 | // TODO: preferred register based on backward branch |
731 | } |
732 | // Delay slot should preferably not overwrite branch conditions or cycle count |
07cd0bc4 |
733 | if (i > 0 && is_jump(i-1)) { |
57871462 |
734 | if(rs1[i-1]) if(hsn[rs1[i-1]]>1) hsn[rs1[i-1]]=1; |
735 | if(rs2[i-1]) if(hsn[rs2[i-1]]>1) hsn[rs2[i-1]]=1; |
736 | hsn[CCREG]=1; |
737 | // ...or hash tables |
738 | hsn[RHASH]=1; |
739 | hsn[RHTBL]=1; |
740 | } |
741 | // Coprocessor load/store needs FTEMP, even if not declared |
b9b61529 |
742 | if(itype[i]==C1LS||itype[i]==C2LS) { |
57871462 |
743 | hsn[FTEMP]=0; |
744 | } |
745 | // Load L/R also uses FTEMP as a temporary register |
746 | if(itype[i]==LOADLR) { |
747 | hsn[FTEMP]=0; |
748 | } |
b7918751 |
749 | // Also SWL/SWR/SDL/SDR |
750 | if(opcode[i]==0x2a||opcode[i]==0x2e||opcode[i]==0x2c||opcode[i]==0x2d) { |
57871462 |
751 | hsn[FTEMP]=0; |
752 | } |
57871462 |
753 | // Don't remove the miniht registers |
754 | if(itype[i]==UJUMP||itype[i]==RJUMP) |
755 | { |
756 | hsn[RHASH]=0; |
757 | hsn[RHTBL]=0; |
758 | } |
759 | } |
760 | |
761 | // We only want to allocate registers if we're going to use them again soon |
762 | int needed_again(int r, int i) |
763 | { |
764 | int j; |
765 | int b=-1; |
766 | int rn=10; |
9f51b4b9 |
767 | |
07cd0bc4 |
768 | if (i > 0 && is_ujump(i-1)) |
57871462 |
769 | { |
770 | if(ba[i-1]<start || ba[i-1]>start+slen*4-4) |
771 | return 0; // Don't need any registers if exiting the block |
772 | } |
773 | for(j=0;j<9;j++) |
774 | { |
775 | if(i+j>=slen) { |
776 | j=slen-i-1; |
777 | break; |
778 | } |
07cd0bc4 |
779 | if (is_ujump(i+j)) |
57871462 |
780 | { |
781 | // Don't go past an unconditonal jump |
782 | j++; |
783 | break; |
784 | } |
1e973cb0 |
785 | if(itype[i+j]==SYSCALL||itype[i+j]==HLECALL||itype[i+j]==INTCALL||((source[i+j]&0xfc00003f)==0x0d)) |
57871462 |
786 | { |
787 | break; |
788 | } |
789 | } |
790 | for(;j>=1;j--) |
791 | { |
792 | if(rs1[i+j]==r) rn=j; |
793 | if(rs2[i+j]==r) rn=j; |
794 | if((unneeded_reg[i+j]>>r)&1) rn=10; |
ad49de89 |
795 | if(i+j>=0&&(itype[i+j]==UJUMP||itype[i+j]==CJUMP||itype[i+j]==SJUMP)) |
57871462 |
796 | { |
797 | b=j; |
798 | } |
799 | } |
800 | /* |
801 | if(b>=0) |
802 | { |
803 | if(ba[i+b]>=start && ba[i+b]<(start+slen*4)) |
804 | { |
805 | // Follow first branch |
806 | int o=rn; |
807 | int t=(ba[i+b]-start)>>2; |
808 | j=7-b;if(t+j>=slen) j=slen-t-1; |
809 | for(;j>=0;j--) |
810 | { |
811 | if(!((unneeded_reg[t+j]>>r)&1)) { |
812 | if(rs1[t+j]==r) if(rn>j+b+2) rn=j+b+2; |
813 | if(rs2[t+j]==r) if(rn>j+b+2) rn=j+b+2; |
814 | } |
815 | else rn=o; |
816 | } |
817 | } |
818 | }*/ |
b7217e13 |
819 | if(rn<10) return 1; |
581335b0 |
820 | (void)b; |
57871462 |
821 | return 0; |
822 | } |
823 | |
824 | // Try to match register allocations at the end of a loop with those |
825 | // at the beginning |
826 | int loop_reg(int i, int r, int hr) |
827 | { |
828 | int j,k; |
829 | for(j=0;j<9;j++) |
830 | { |
831 | if(i+j>=slen) { |
832 | j=slen-i-1; |
833 | break; |
834 | } |
07cd0bc4 |
835 | if (is_ujump(i+j)) |
57871462 |
836 | { |
837 | // Don't go past an unconditonal jump |
838 | j++; |
839 | break; |
840 | } |
841 | } |
842 | k=0; |
843 | if(i>0){ |
ad49de89 |
844 | if(itype[i-1]==UJUMP||itype[i-1]==CJUMP||itype[i-1]==SJUMP) |
57871462 |
845 | k--; |
846 | } |
847 | for(;k<j;k++) |
848 | { |
00fa9369 |
849 | assert(r < 64); |
850 | if((unneeded_reg[i+k]>>r)&1) return hr; |
ad49de89 |
851 | if(i+k>=0&&(itype[i+k]==UJUMP||itype[i+k]==CJUMP||itype[i+k]==SJUMP)) |
57871462 |
852 | { |
853 | if(ba[i+k]>=start && ba[i+k]<(start+i*4)) |
854 | { |
855 | int t=(ba[i+k]-start)>>2; |
856 | int reg=get_reg(regs[t].regmap_entry,r); |
857 | if(reg>=0) return reg; |
858 | //reg=get_reg(regs[t+1].regmap_entry,r); |
859 | //if(reg>=0) return reg; |
860 | } |
861 | } |
862 | } |
863 | return hr; |
864 | } |
865 | |
866 | |
867 | // Allocate every register, preserving source/target regs |
868 | void alloc_all(struct regstat *cur,int i) |
869 | { |
870 | int hr; |
9f51b4b9 |
871 | |
57871462 |
872 | for(hr=0;hr<HOST_REGS;hr++) { |
873 | if(hr!=EXCLUDE_REG) { |
874 | if(((cur->regmap[hr]&63)!=rs1[i])&&((cur->regmap[hr]&63)!=rs2[i])&& |
875 | ((cur->regmap[hr]&63)!=rt1[i])&&((cur->regmap[hr]&63)!=rt2[i])) |
876 | { |
877 | cur->regmap[hr]=-1; |
878 | cur->dirty&=~(1<<hr); |
879 | } |
880 | // Don't need zeros |
881 | if((cur->regmap[hr]&63)==0) |
882 | { |
883 | cur->regmap[hr]=-1; |
884 | cur->dirty&=~(1<<hr); |
885 | } |
886 | } |
887 | } |
888 | } |
889 | |
d1e4ebd9 |
890 | #ifndef NDEBUG |
891 | static int host_tempreg_in_use; |
892 | |
893 | static void host_tempreg_acquire(void) |
894 | { |
895 | assert(!host_tempreg_in_use); |
896 | host_tempreg_in_use = 1; |
897 | } |
898 | |
899 | static void host_tempreg_release(void) |
900 | { |
901 | host_tempreg_in_use = 0; |
902 | } |
903 | #else |
904 | static void host_tempreg_acquire(void) {} |
905 | static void host_tempreg_release(void) {} |
906 | #endif |
907 | |
8062d65a |
908 | #ifdef DRC_DBG |
909 | extern void gen_interupt(); |
910 | extern void do_insn_cmp(); |
d1e4ebd9 |
911 | #define FUNCNAME(f) { f, " " #f } |
8062d65a |
912 | static const struct { |
d1e4ebd9 |
913 | void *addr; |
8062d65a |
914 | const char *name; |
915 | } function_names[] = { |
916 | FUNCNAME(cc_interrupt), |
917 | FUNCNAME(gen_interupt), |
918 | FUNCNAME(get_addr_ht), |
919 | FUNCNAME(get_addr), |
920 | FUNCNAME(jump_handler_read8), |
921 | FUNCNAME(jump_handler_read16), |
922 | FUNCNAME(jump_handler_read32), |
923 | FUNCNAME(jump_handler_write8), |
924 | FUNCNAME(jump_handler_write16), |
925 | FUNCNAME(jump_handler_write32), |
926 | FUNCNAME(invalidate_addr), |
3968e69e |
927 | FUNCNAME(jump_to_new_pc), |
81dbbf4c |
928 | FUNCNAME(call_gteStall), |
8062d65a |
929 | FUNCNAME(new_dyna_leave), |
930 | FUNCNAME(pcsx_mtc0), |
931 | FUNCNAME(pcsx_mtc0_ds), |
932 | FUNCNAME(do_insn_cmp), |
3968e69e |
933 | #ifdef __arm__ |
934 | FUNCNAME(verify_code), |
935 | #endif |
8062d65a |
936 | }; |
937 | |
d1e4ebd9 |
938 | static const char *func_name(const void *a) |
8062d65a |
939 | { |
940 | int i; |
941 | for (i = 0; i < sizeof(function_names)/sizeof(function_names[0]); i++) |
942 | if (function_names[i].addr == a) |
943 | return function_names[i].name; |
944 | return ""; |
945 | } |
946 | #else |
947 | #define func_name(x) "" |
948 | #endif |
949 | |
57871462 |
950 | #ifdef __i386__ |
951 | #include "assem_x86.c" |
952 | #endif |
953 | #ifdef __x86_64__ |
954 | #include "assem_x64.c" |
955 | #endif |
956 | #ifdef __arm__ |
957 | #include "assem_arm.c" |
958 | #endif |
be516ebe |
959 | #ifdef __aarch64__ |
960 | #include "assem_arm64.c" |
961 | #endif |
57871462 |
962 | |
2a014d73 |
963 | static void *get_trampoline(const void *f) |
964 | { |
965 | size_t i; |
966 | |
967 | for (i = 0; i < ARRAY_SIZE(ndrc->tramp.f); i++) { |
968 | if (ndrc->tramp.f[i] == f || ndrc->tramp.f[i] == NULL) |
969 | break; |
970 | } |
971 | if (i == ARRAY_SIZE(ndrc->tramp.f)) { |
972 | SysPrintf("trampoline table is full, last func %p\n", f); |
973 | abort(); |
974 | } |
975 | if (ndrc->tramp.f[i] == NULL) { |
976 | start_tcache_write(&ndrc->tramp.f[i], &ndrc->tramp.f[i + 1]); |
977 | ndrc->tramp.f[i] = f; |
978 | end_tcache_write(&ndrc->tramp.f[i], &ndrc->tramp.f[i + 1]); |
979 | } |
980 | return &ndrc->tramp.ops[i]; |
981 | } |
982 | |
983 | static void emit_far_jump(const void *f) |
984 | { |
985 | if (can_jump_or_call(f)) { |
986 | emit_jmp(f); |
987 | return; |
988 | } |
989 | |
990 | f = get_trampoline(f); |
991 | emit_jmp(f); |
992 | } |
993 | |
994 | static void emit_far_call(const void *f) |
995 | { |
996 | if (can_jump_or_call(f)) { |
997 | emit_call(f); |
998 | return; |
999 | } |
1000 | |
1001 | f = get_trampoline(f); |
1002 | emit_call(f); |
1003 | } |
1004 | |
57871462 |
1005 | // Add virtual address mapping to linked list |
1006 | void ll_add(struct ll_entry **head,int vaddr,void *addr) |
1007 | { |
1008 | struct ll_entry *new_entry; |
1009 | new_entry=malloc(sizeof(struct ll_entry)); |
1010 | assert(new_entry!=NULL); |
1011 | new_entry->vaddr=vaddr; |
de5a60c3 |
1012 | new_entry->reg_sv_flags=0; |
57871462 |
1013 | new_entry->addr=addr; |
1014 | new_entry->next=*head; |
1015 | *head=new_entry; |
1016 | } |
1017 | |
de5a60c3 |
1018 | void ll_add_flags(struct ll_entry **head,int vaddr,u_int reg_sv_flags,void *addr) |
57871462 |
1019 | { |
7139f3c8 |
1020 | ll_add(head,vaddr,addr); |
de5a60c3 |
1021 | (*head)->reg_sv_flags=reg_sv_flags; |
57871462 |
1022 | } |
1023 | |
1024 | // Check if an address is already compiled |
1025 | // but don't return addresses which are about to expire from the cache |
1026 | void *check_addr(u_int vaddr) |
1027 | { |
df4dc2b1 |
1028 | struct ht_entry *ht_bin = hash_table_get(vaddr); |
1029 | size_t i; |
b14b6a8f |
1030 | for (i = 0; i < ARRAY_SIZE(ht_bin->vaddr); i++) { |
df4dc2b1 |
1031 | if (ht_bin->vaddr[i] == vaddr) |
1032 | if (doesnt_expire_soon((u_char *)ht_bin->tcaddr[i] - MAX_OUTPUT_BLOCK_SIZE)) |
1033 | if (isclean(ht_bin->tcaddr[i])) |
1034 | return ht_bin->tcaddr[i]; |
57871462 |
1035 | } |
94d23bb9 |
1036 | u_int page=get_page(vaddr); |
57871462 |
1037 | struct ll_entry *head; |
1038 | head=jump_in[page]; |
df4dc2b1 |
1039 | while (head != NULL) { |
1040 | if (head->vaddr == vaddr) { |
1041 | if (doesnt_expire_soon(head->addr)) { |
57871462 |
1042 | // Update existing entry with current address |
df4dc2b1 |
1043 | if (ht_bin->vaddr[0] == vaddr) { |
1044 | ht_bin->tcaddr[0] = head->addr; |
57871462 |
1045 | return head->addr; |
1046 | } |
df4dc2b1 |
1047 | if (ht_bin->vaddr[1] == vaddr) { |
1048 | ht_bin->tcaddr[1] = head->addr; |
57871462 |
1049 | return head->addr; |
1050 | } |
1051 | // Insert into hash table with low priority. |
1052 | // Don't evict existing entries, as they are probably |
1053 | // addresses that are being accessed frequently. |
df4dc2b1 |
1054 | if (ht_bin->vaddr[0] == -1) { |
1055 | ht_bin->vaddr[0] = vaddr; |
1056 | ht_bin->tcaddr[0] = head->addr; |
1057 | } |
1058 | else if (ht_bin->vaddr[1] == -1) { |
1059 | ht_bin->vaddr[1] = vaddr; |
1060 | ht_bin->tcaddr[1] = head->addr; |
57871462 |
1061 | } |
1062 | return head->addr; |
1063 | } |
1064 | } |
1065 | head=head->next; |
1066 | } |
1067 | return 0; |
1068 | } |
1069 | |
1070 | void remove_hash(int vaddr) |
1071 | { |
1072 | //printf("remove hash: %x\n",vaddr); |
df4dc2b1 |
1073 | struct ht_entry *ht_bin = hash_table_get(vaddr); |
1074 | if (ht_bin->vaddr[1] == vaddr) { |
1075 | ht_bin->vaddr[1] = -1; |
1076 | ht_bin->tcaddr[1] = NULL; |
57871462 |
1077 | } |
df4dc2b1 |
1078 | if (ht_bin->vaddr[0] == vaddr) { |
1079 | ht_bin->vaddr[0] = ht_bin->vaddr[1]; |
1080 | ht_bin->tcaddr[0] = ht_bin->tcaddr[1]; |
1081 | ht_bin->vaddr[1] = -1; |
1082 | ht_bin->tcaddr[1] = NULL; |
57871462 |
1083 | } |
1084 | } |
1085 | |
643aeae3 |
1086 | void ll_remove_matching_addrs(struct ll_entry **head,uintptr_t addr,int shift) |
57871462 |
1087 | { |
1088 | struct ll_entry *next; |
1089 | while(*head) { |
643aeae3 |
1090 | if(((uintptr_t)((*head)->addr)>>shift)==(addr>>shift) || |
1091 | ((uintptr_t)((*head)->addr-MAX_OUTPUT_BLOCK_SIZE)>>shift)==(addr>>shift)) |
57871462 |
1092 | { |
643aeae3 |
1093 | inv_debug("EXP: Remove pointer to %p (%x)\n",(*head)->addr,(*head)->vaddr); |
57871462 |
1094 | remove_hash((*head)->vaddr); |
1095 | next=(*head)->next; |
1096 | free(*head); |
1097 | *head=next; |
1098 | } |
1099 | else |
1100 | { |
1101 | head=&((*head)->next); |
1102 | } |
1103 | } |
1104 | } |
1105 | |
1106 | // Remove all entries from linked list |
1107 | void ll_clear(struct ll_entry **head) |
1108 | { |
1109 | struct ll_entry *cur; |
1110 | struct ll_entry *next; |
581335b0 |
1111 | if((cur=*head)) { |
57871462 |
1112 | *head=0; |
1113 | while(cur) { |
1114 | next=cur->next; |
1115 | free(cur); |
1116 | cur=next; |
1117 | } |
1118 | } |
1119 | } |
1120 | |
1121 | // Dereference the pointers and remove if it matches |
643aeae3 |
1122 | static void ll_kill_pointers(struct ll_entry *head,uintptr_t addr,int shift) |
57871462 |
1123 | { |
1124 | while(head) { |
643aeae3 |
1125 | uintptr_t ptr = (uintptr_t)get_pointer(head->addr); |
1126 | inv_debug("EXP: Lookup pointer to %lx at %p (%x)\n",(long)ptr,head->addr,head->vaddr); |
57871462 |
1127 | if(((ptr>>shift)==(addr>>shift)) || |
1128 | (((ptr-MAX_OUTPUT_BLOCK_SIZE)>>shift)==(addr>>shift))) |
1129 | { |
643aeae3 |
1130 | inv_debug("EXP: Kill pointer at %p (%x)\n",head->addr,head->vaddr); |
d148d265 |
1131 | void *host_addr=find_extjump_insn(head->addr); |
919981d0 |
1132 | mark_clear_cache(host_addr); |
df4dc2b1 |
1133 | set_jump_target(host_addr, head->addr); |
57871462 |
1134 | } |
1135 | head=head->next; |
1136 | } |
1137 | } |
1138 | |
1139 | // This is called when we write to a compiled block (see do_invstub) |
d1e4ebd9 |
1140 | static void invalidate_page(u_int page) |
57871462 |
1141 | { |
57871462 |
1142 | struct ll_entry *head; |
1143 | struct ll_entry *next; |
1144 | head=jump_in[page]; |
1145 | jump_in[page]=0; |
1146 | while(head!=NULL) { |
1147 | inv_debug("INVALIDATE: %x\n",head->vaddr); |
1148 | remove_hash(head->vaddr); |
1149 | next=head->next; |
1150 | free(head); |
1151 | head=next; |
1152 | } |
1153 | head=jump_out[page]; |
1154 | jump_out[page]=0; |
1155 | while(head!=NULL) { |
643aeae3 |
1156 | inv_debug("INVALIDATE: kill pointer to %x (%p)\n",head->vaddr,head->addr); |
d148d265 |
1157 | void *host_addr=find_extjump_insn(head->addr); |
919981d0 |
1158 | mark_clear_cache(host_addr); |
df4dc2b1 |
1159 | set_jump_target(host_addr, head->addr); |
57871462 |
1160 | next=head->next; |
1161 | free(head); |
1162 | head=next; |
1163 | } |
57871462 |
1164 | } |
9be4ba64 |
1165 | |
1166 | static void invalidate_block_range(u_int block, u_int first, u_int last) |
57871462 |
1167 | { |
94d23bb9 |
1168 | u_int page=get_page(block<<12); |
57871462 |
1169 | //printf("first=%d last=%d\n",first,last); |
f76eeef9 |
1170 | invalidate_page(page); |
57871462 |
1171 | assert(first+5>page); // NB: this assumes MAXBLOCK<=4096 (4 pages) |
1172 | assert(last<page+5); |
1173 | // Invalidate the adjacent pages if a block crosses a 4K boundary |
1174 | while(first<page) { |
1175 | invalidate_page(first); |
1176 | first++; |
1177 | } |
1178 | for(first=page+1;first<last;first++) { |
1179 | invalidate_page(first); |
1180 | } |
919981d0 |
1181 | do_clear_cache(); |
9f51b4b9 |
1182 | |
57871462 |
1183 | // Don't trap writes |
1184 | invalid_code[block]=1; |
f76eeef9 |
1185 | |
57871462 |
1186 | #ifdef USE_MINI_HT |
1187 | memset(mini_ht,-1,sizeof(mini_ht)); |
1188 | #endif |
1189 | } |
9be4ba64 |
1190 | |
1191 | void invalidate_block(u_int block) |
1192 | { |
1193 | u_int page=get_page(block<<12); |
1194 | u_int vpage=get_vpage(block<<12); |
1195 | inv_debug("INVALIDATE: %x (%d)\n",block<<12,page); |
1196 | //inv_debug("invalid_code[block]=%d\n",invalid_code[block]); |
1197 | u_int first,last; |
1198 | first=last=page; |
1199 | struct ll_entry *head; |
1200 | head=jump_dirty[vpage]; |
1201 | //printf("page=%d vpage=%d\n",page,vpage); |
1202 | while(head!=NULL) { |
9be4ba64 |
1203 | if(vpage>2047||(head->vaddr>>12)==block) { // Ignore vaddr hash collision |
01d26796 |
1204 | u_char *start, *end; |
1205 | get_bounds(head->addr, &start, &end); |
1206 | //printf("start: %p end: %p\n", start, end); |
1207 | if (page < 2048 && start >= rdram && end < rdram+RAM_SIZE) { |
1208 | if (((start-rdram)>>12) <= page && ((end-1-rdram)>>12) >= page) { |
1209 | if ((((start-rdram)>>12)&2047) < first) first = ((start-rdram)>>12)&2047; |
1210 | if ((((end-1-rdram)>>12)&2047) > last) last = ((end-1-rdram)>>12)&2047; |
9be4ba64 |
1211 | } |
1212 | } |
9be4ba64 |
1213 | } |
1214 | head=head->next; |
1215 | } |
1216 | invalidate_block_range(block,first,last); |
1217 | } |
1218 | |
57871462 |
1219 | void invalidate_addr(u_int addr) |
1220 | { |
9be4ba64 |
1221 | //static int rhits; |
1222 | // this check is done by the caller |
1223 | //if (inv_code_start<=addr&&addr<=inv_code_end) { rhits++; return; } |
d25604ca |
1224 | u_int page=get_vpage(addr); |
9be4ba64 |
1225 | if(page<2048) { // RAM |
1226 | struct ll_entry *head; |
1227 | u_int addr_min=~0, addr_max=0; |
4a35de07 |
1228 | u_int mask=RAM_SIZE-1; |
1229 | u_int addr_main=0x80000000|(addr&mask); |
9be4ba64 |
1230 | int pg1; |
4a35de07 |
1231 | inv_code_start=addr_main&~0xfff; |
1232 | inv_code_end=addr_main|0xfff; |
9be4ba64 |
1233 | pg1=page; |
1234 | if (pg1>0) { |
1235 | // must check previous page too because of spans.. |
1236 | pg1--; |
1237 | inv_code_start-=0x1000; |
1238 | } |
1239 | for(;pg1<=page;pg1++) { |
1240 | for(head=jump_dirty[pg1];head!=NULL;head=head->next) { |
01d26796 |
1241 | u_char *start_h, *end_h; |
1242 | u_int start, end; |
1243 | get_bounds(head->addr, &start_h, &end_h); |
1244 | start = (uintptr_t)start_h - ram_offset; |
1245 | end = (uintptr_t)end_h - ram_offset; |
4a35de07 |
1246 | if(start<=addr_main&&addr_main<end) { |
9be4ba64 |
1247 | if(start<addr_min) addr_min=start; |
1248 | if(end>addr_max) addr_max=end; |
1249 | } |
4a35de07 |
1250 | else if(addr_main<start) { |
9be4ba64 |
1251 | if(start<inv_code_end) |
1252 | inv_code_end=start-1; |
1253 | } |
1254 | else { |
1255 | if(end>inv_code_start) |
1256 | inv_code_start=end; |
1257 | } |
1258 | } |
1259 | } |
1260 | if (addr_min!=~0) { |
1261 | inv_debug("INV ADDR: %08x hit %08x-%08x\n", addr, addr_min, addr_max); |
1262 | inv_code_start=inv_code_end=~0; |
1263 | invalidate_block_range(addr>>12,(addr_min&mask)>>12,(addr_max&mask)>>12); |
1264 | return; |
1265 | } |
1266 | else { |
4a35de07 |
1267 | inv_code_start=(addr&~mask)|(inv_code_start&mask); |
1268 | inv_code_end=(addr&~mask)|(inv_code_end&mask); |
d25604ca |
1269 | inv_debug("INV ADDR: %08x miss, inv %08x-%08x, sk %d\n", addr, inv_code_start, inv_code_end, 0); |
9be4ba64 |
1270 | return; |
d25604ca |
1271 | } |
9be4ba64 |
1272 | } |
57871462 |
1273 | invalidate_block(addr>>12); |
1274 | } |
9be4ba64 |
1275 | |
dd3a91a1 |
1276 | // This is called when loading a save state. |
1277 | // Anything could have changed, so invalidate everything. |
919981d0 |
1278 | void invalidate_all_pages(void) |
57871462 |
1279 | { |
581335b0 |
1280 | u_int page; |
57871462 |
1281 | for(page=0;page<4096;page++) |
1282 | invalidate_page(page); |
1283 | for(page=0;page<1048576;page++) |
1284 | if(!invalid_code[page]) { |
1285 | restore_candidate[(page&2047)>>3]|=1<<(page&7); |
1286 | restore_candidate[((page&2047)>>3)+256]|=1<<(page&7); |
1287 | } |
57871462 |
1288 | #ifdef USE_MINI_HT |
1289 | memset(mini_ht,-1,sizeof(mini_ht)); |
1290 | #endif |
919981d0 |
1291 | do_clear_cache(); |
57871462 |
1292 | } |
1293 | |
d1e4ebd9 |
1294 | static void do_invstub(int n) |
1295 | { |
1296 | literal_pool(20); |
1297 | u_int reglist=stubs[n].a; |
1298 | set_jump_target(stubs[n].addr, out); |
1299 | save_regs(reglist); |
1300 | if(stubs[n].b!=0) emit_mov(stubs[n].b,0); |
2a014d73 |
1301 | emit_far_call(invalidate_addr); |
d1e4ebd9 |
1302 | restore_regs(reglist); |
1303 | emit_jmp(stubs[n].retaddr); // return address |
1304 | } |
1305 | |
57871462 |
1306 | // Add an entry to jump_out after making a link |
d1e4ebd9 |
1307 | // src should point to code by emit_extjump2() |
57871462 |
1308 | void add_link(u_int vaddr,void *src) |
1309 | { |
94d23bb9 |
1310 | u_int page=get_page(vaddr); |
643aeae3 |
1311 | inv_debug("add_link: %p -> %x (%d)\n",src,vaddr,page); |
d1e4ebd9 |
1312 | check_extjump2(src); |
57871462 |
1313 | ll_add(jump_out+page,vaddr,src); |
643aeae3 |
1314 | //void *ptr=get_pointer(src); |
1315 | //inv_debug("add_link: Pointer is to %p\n",ptr); |
57871462 |
1316 | } |
1317 | |
1318 | // If a code block was found to be unmodified (bit was set in |
1319 | // restore_candidate) and it remains unmodified (bit is clear |
1320 | // in invalid_code) then move the entries for that 4K page from |
1321 | // the dirty list to the clean list. |
1322 | void clean_blocks(u_int page) |
1323 | { |
1324 | struct ll_entry *head; |
1325 | inv_debug("INV: clean_blocks page=%d\n",page); |
1326 | head=jump_dirty[page]; |
1327 | while(head!=NULL) { |
1328 | if(!invalid_code[head->vaddr>>12]) { |
1329 | // Don't restore blocks which are about to expire from the cache |
df4dc2b1 |
1330 | if (doesnt_expire_soon(head->addr)) { |
581335b0 |
1331 | if(verify_dirty(head->addr)) { |
01d26796 |
1332 | u_char *start, *end; |
643aeae3 |
1333 | //printf("Possibly Restore %x (%p)\n",head->vaddr, head->addr); |
57871462 |
1334 | u_int i; |
1335 | u_int inv=0; |
01d26796 |
1336 | get_bounds(head->addr, &start, &end); |
1337 | if (start - rdram < RAM_SIZE) { |
1338 | for (i = (start-rdram+0x80000000)>>12; i <= (end-1-rdram+0x80000000)>>12; i++) { |
57871462 |
1339 | inv|=invalid_code[i]; |
1340 | } |
1341 | } |
4cb76aa4 |
1342 | else if((signed int)head->vaddr>=(signed int)0x80000000+RAM_SIZE) { |
57871462 |
1343 | inv=1; |
1344 | } |
1345 | if(!inv) { |
df4dc2b1 |
1346 | void *clean_addr = get_clean_addr(head->addr); |
1347 | if (doesnt_expire_soon(clean_addr)) { |
57871462 |
1348 | u_int ppage=page; |
643aeae3 |
1349 | inv_debug("INV: Restored %x (%p/%p)\n",head->vaddr, head->addr, clean_addr); |
57871462 |
1350 | //printf("page=%x, addr=%x\n",page,head->vaddr); |
1351 | //assert(head->vaddr>>12==(page|0x80000)); |
de5a60c3 |
1352 | ll_add_flags(jump_in+ppage,head->vaddr,head->reg_sv_flags,clean_addr); |
df4dc2b1 |
1353 | struct ht_entry *ht_bin = hash_table_get(head->vaddr); |
1354 | if (ht_bin->vaddr[0] == head->vaddr) |
1355 | ht_bin->tcaddr[0] = clean_addr; // Replace existing entry |
1356 | if (ht_bin->vaddr[1] == head->vaddr) |
1357 | ht_bin->tcaddr[1] = clean_addr; // Replace existing entry |
57871462 |
1358 | } |
1359 | } |
1360 | } |
1361 | } |
1362 | } |
1363 | head=head->next; |
1364 | } |
1365 | } |
1366 | |
8062d65a |
1367 | /* Register allocation */ |
1368 | |
1369 | // Note: registers are allocated clean (unmodified state) |
1370 | // if you intend to modify the register, you must call dirty_reg(). |
1371 | static void alloc_reg(struct regstat *cur,int i,signed char reg) |
1372 | { |
1373 | int r,hr; |
1374 | int preferred_reg = (reg&7); |
1375 | if(reg==CCREG) preferred_reg=HOST_CCREG; |
1376 | if(reg==PTEMP||reg==FTEMP) preferred_reg=12; |
1377 | |
1378 | // Don't allocate unused registers |
1379 | if((cur->u>>reg)&1) return; |
1380 | |
1381 | // see if it's already allocated |
1382 | for(hr=0;hr<HOST_REGS;hr++) |
1383 | { |
1384 | if(cur->regmap[hr]==reg) return; |
1385 | } |
1386 | |
1387 | // Keep the same mapping if the register was already allocated in a loop |
1388 | preferred_reg = loop_reg(i,reg,preferred_reg); |
1389 | |
1390 | // Try to allocate the preferred register |
1391 | if(cur->regmap[preferred_reg]==-1) { |
1392 | cur->regmap[preferred_reg]=reg; |
1393 | cur->dirty&=~(1<<preferred_reg); |
1394 | cur->isconst&=~(1<<preferred_reg); |
1395 | return; |
1396 | } |
1397 | r=cur->regmap[preferred_reg]; |
1398 | assert(r < 64); |
1399 | if((cur->u>>r)&1) { |
1400 | cur->regmap[preferred_reg]=reg; |
1401 | cur->dirty&=~(1<<preferred_reg); |
1402 | cur->isconst&=~(1<<preferred_reg); |
1403 | return; |
1404 | } |
1405 | |
1406 | // Clear any unneeded registers |
1407 | // We try to keep the mapping consistent, if possible, because it |
1408 | // makes branches easier (especially loops). So we try to allocate |
1409 | // first (see above) before removing old mappings. If this is not |
1410 | // possible then go ahead and clear out the registers that are no |
1411 | // longer needed. |
1412 | for(hr=0;hr<HOST_REGS;hr++) |
1413 | { |
1414 | r=cur->regmap[hr]; |
1415 | if(r>=0) { |
1416 | assert(r < 64); |
1417 | if((cur->u>>r)&1) {cur->regmap[hr]=-1;break;} |
1418 | } |
1419 | } |
1420 | // Try to allocate any available register, but prefer |
1421 | // registers that have not been used recently. |
1422 | if(i>0) { |
1423 | for(hr=0;hr<HOST_REGS;hr++) { |
1424 | if(hr!=EXCLUDE_REG&&cur->regmap[hr]==-1) { |
1425 | if(regs[i-1].regmap[hr]!=rs1[i-1]&®s[i-1].regmap[hr]!=rs2[i-1]&®s[i-1].regmap[hr]!=rt1[i-1]&®s[i-1].regmap[hr]!=rt2[i-1]) { |
1426 | cur->regmap[hr]=reg; |
1427 | cur->dirty&=~(1<<hr); |
1428 | cur->isconst&=~(1<<hr); |
1429 | return; |
1430 | } |
1431 | } |
1432 | } |
1433 | } |
1434 | // Try to allocate any available register |
1435 | for(hr=0;hr<HOST_REGS;hr++) { |
1436 | if(hr!=EXCLUDE_REG&&cur->regmap[hr]==-1) { |
1437 | cur->regmap[hr]=reg; |
1438 | cur->dirty&=~(1<<hr); |
1439 | cur->isconst&=~(1<<hr); |
1440 | return; |
1441 | } |
1442 | } |
1443 | |
1444 | // Ok, now we have to evict someone |
1445 | // Pick a register we hopefully won't need soon |
1446 | u_char hsn[MAXREG+1]; |
1447 | memset(hsn,10,sizeof(hsn)); |
1448 | int j; |
1449 | lsn(hsn,i,&preferred_reg); |
1450 | //printf("eax=%d ecx=%d edx=%d ebx=%d ebp=%d esi=%d edi=%d\n",cur->regmap[0],cur->regmap[1],cur->regmap[2],cur->regmap[3],cur->regmap[5],cur->regmap[6],cur->regmap[7]); |
1451 | //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]); |
1452 | if(i>0) { |
1453 | // Don't evict the cycle count at entry points, otherwise the entry |
1454 | // stub will have to write it. |
1455 | if(bt[i]&&hsn[CCREG]>2) hsn[CCREG]=2; |
1456 | if(i>1&&hsn[CCREG]>2&&(itype[i-2]==RJUMP||itype[i-2]==UJUMP||itype[i-2]==CJUMP||itype[i-2]==SJUMP)) hsn[CCREG]=2; |
1457 | for(j=10;j>=3;j--) |
1458 | { |
1459 | // Alloc preferred register if available |
1460 | if(hsn[r=cur->regmap[preferred_reg]&63]==j) { |
1461 | for(hr=0;hr<HOST_REGS;hr++) { |
1462 | // Evict both parts of a 64-bit register |
1463 | if((cur->regmap[hr]&63)==r) { |
1464 | cur->regmap[hr]=-1; |
1465 | cur->dirty&=~(1<<hr); |
1466 | cur->isconst&=~(1<<hr); |
1467 | } |
1468 | } |
1469 | cur->regmap[preferred_reg]=reg; |
1470 | return; |
1471 | } |
1472 | for(r=1;r<=MAXREG;r++) |
1473 | { |
1474 | if(hsn[r]==j&&r!=rs1[i-1]&&r!=rs2[i-1]&&r!=rt1[i-1]&&r!=rt2[i-1]) { |
8062d65a |
1475 | for(hr=0;hr<HOST_REGS;hr++) { |
1476 | if(hr!=HOST_CCREG||j<hsn[CCREG]) { |
1477 | if(cur->regmap[hr]==r) { |
1478 | cur->regmap[hr]=reg; |
1479 | cur->dirty&=~(1<<hr); |
1480 | cur->isconst&=~(1<<hr); |
1481 | return; |
1482 | } |
1483 | } |
1484 | } |
1485 | } |
1486 | } |
1487 | } |
1488 | } |
1489 | for(j=10;j>=0;j--) |
1490 | { |
1491 | for(r=1;r<=MAXREG;r++) |
1492 | { |
1493 | if(hsn[r]==j) { |
8062d65a |
1494 | for(hr=0;hr<HOST_REGS;hr++) { |
1495 | if(cur->regmap[hr]==r) { |
1496 | cur->regmap[hr]=reg; |
1497 | cur->dirty&=~(1<<hr); |
1498 | cur->isconst&=~(1<<hr); |
1499 | return; |
1500 | } |
1501 | } |
1502 | } |
1503 | } |
1504 | } |
7c3a5182 |
1505 | SysPrintf("This shouldn't happen (alloc_reg)");abort(); |
8062d65a |
1506 | } |
1507 | |
1508 | // Allocate a temporary register. This is done without regard to |
1509 | // dirty status or whether the register we request is on the unneeded list |
1510 | // Note: This will only allocate one register, even if called multiple times |
1511 | static void alloc_reg_temp(struct regstat *cur,int i,signed char reg) |
1512 | { |
1513 | int r,hr; |
1514 | int preferred_reg = -1; |
1515 | |
1516 | // see if it's already allocated |
1517 | for(hr=0;hr<HOST_REGS;hr++) |
1518 | { |
1519 | if(hr!=EXCLUDE_REG&&cur->regmap[hr]==reg) return; |
1520 | } |
1521 | |
1522 | // Try to allocate any available register |
1523 | for(hr=HOST_REGS-1;hr>=0;hr--) { |
1524 | if(hr!=EXCLUDE_REG&&cur->regmap[hr]==-1) { |
1525 | cur->regmap[hr]=reg; |
1526 | cur->dirty&=~(1<<hr); |
1527 | cur->isconst&=~(1<<hr); |
1528 | return; |
1529 | } |
1530 | } |
1531 | |
1532 | // Find an unneeded register |
1533 | for(hr=HOST_REGS-1;hr>=0;hr--) |
1534 | { |
1535 | r=cur->regmap[hr]; |
1536 | if(r>=0) { |
1537 | assert(r < 64); |
1538 | if((cur->u>>r)&1) { |
1539 | if(i==0||((unneeded_reg[i-1]>>r)&1)) { |
1540 | cur->regmap[hr]=reg; |
1541 | cur->dirty&=~(1<<hr); |
1542 | cur->isconst&=~(1<<hr); |
1543 | return; |
1544 | } |
1545 | } |
1546 | } |
1547 | } |
1548 | |
1549 | // Ok, now we have to evict someone |
1550 | // Pick a register we hopefully won't need soon |
1551 | // TODO: we might want to follow unconditional jumps here |
1552 | // TODO: get rid of dupe code and make this into a function |
1553 | u_char hsn[MAXREG+1]; |
1554 | memset(hsn,10,sizeof(hsn)); |
1555 | int j; |
1556 | lsn(hsn,i,&preferred_reg); |
1557 | //printf("hsn: %d %d %d %d %d %d %d\n",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]); |
1558 | if(i>0) { |
1559 | // Don't evict the cycle count at entry points, otherwise the entry |
1560 | // stub will have to write it. |
1561 | if(bt[i]&&hsn[CCREG]>2) hsn[CCREG]=2; |
1562 | if(i>1&&hsn[CCREG]>2&&(itype[i-2]==RJUMP||itype[i-2]==UJUMP||itype[i-2]==CJUMP||itype[i-2]==SJUMP)) hsn[CCREG]=2; |
1563 | for(j=10;j>=3;j--) |
1564 | { |
1565 | for(r=1;r<=MAXREG;r++) |
1566 | { |
1567 | if(hsn[r]==j&&r!=rs1[i-1]&&r!=rs2[i-1]&&r!=rt1[i-1]&&r!=rt2[i-1]) { |
8062d65a |
1568 | for(hr=0;hr<HOST_REGS;hr++) { |
1569 | if(hr!=HOST_CCREG||hsn[CCREG]>2) { |
1570 | if(cur->regmap[hr]==r) { |
1571 | cur->regmap[hr]=reg; |
1572 | cur->dirty&=~(1<<hr); |
1573 | cur->isconst&=~(1<<hr); |
1574 | return; |
1575 | } |
1576 | } |
1577 | } |
1578 | } |
1579 | } |
1580 | } |
1581 | } |
1582 | for(j=10;j>=0;j--) |
1583 | { |
1584 | for(r=1;r<=MAXREG;r++) |
1585 | { |
1586 | if(hsn[r]==j) { |
8062d65a |
1587 | for(hr=0;hr<HOST_REGS;hr++) { |
1588 | if(cur->regmap[hr]==r) { |
1589 | cur->regmap[hr]=reg; |
1590 | cur->dirty&=~(1<<hr); |
1591 | cur->isconst&=~(1<<hr); |
1592 | return; |
1593 | } |
1594 | } |
1595 | } |
1596 | } |
1597 | } |
7c3a5182 |
1598 | SysPrintf("This shouldn't happen");abort(); |
8062d65a |
1599 | } |
1600 | |
ad49de89 |
1601 | static void mov_alloc(struct regstat *current,int i) |
57871462 |
1602 | { |
1603 | // Note: Don't need to actually alloc the source registers |
ad49de89 |
1604 | //alloc_reg(current,i,rs1[i]); |
1605 | alloc_reg(current,i,rt1[i]); |
1606 | |
57871462 |
1607 | clear_const(current,rs1[i]); |
1608 | clear_const(current,rt1[i]); |
1609 | dirty_reg(current,rt1[i]); |
1610 | } |
1611 | |
ad49de89 |
1612 | static void shiftimm_alloc(struct regstat *current,int i) |
57871462 |
1613 | { |
57871462 |
1614 | if(opcode2[i]<=0x3) // SLL/SRL/SRA |
1615 | { |
1616 | if(rt1[i]) { |
1617 | if(rs1[i]&&needed_again(rs1[i],i)) alloc_reg(current,i,rs1[i]); |
1618 | else lt1[i]=rs1[i]; |
1619 | alloc_reg(current,i,rt1[i]); |
57871462 |
1620 | dirty_reg(current,rt1[i]); |
dc49e339 |
1621 | if(is_const(current,rs1[i])) { |
1622 | int v=get_const(current,rs1[i]); |
1623 | if(opcode2[i]==0x00) set_const(current,rt1[i],v<<imm[i]); |
1624 | if(opcode2[i]==0x02) set_const(current,rt1[i],(u_int)v>>imm[i]); |
1625 | if(opcode2[i]==0x03) set_const(current,rt1[i],v>>imm[i]); |
1626 | } |
1627 | else clear_const(current,rt1[i]); |
57871462 |
1628 | } |
1629 | } |
dc49e339 |
1630 | else |
1631 | { |
1632 | clear_const(current,rs1[i]); |
1633 | clear_const(current,rt1[i]); |
1634 | } |
1635 | |
57871462 |
1636 | if(opcode2[i]>=0x38&&opcode2[i]<=0x3b) // DSLL/DSRL/DSRA |
1637 | { |
9c45ca93 |
1638 | assert(0); |
57871462 |
1639 | } |
1640 | if(opcode2[i]==0x3c) // DSLL32 |
1641 | { |
9c45ca93 |
1642 | assert(0); |
57871462 |
1643 | } |
1644 | if(opcode2[i]==0x3e) // DSRL32 |
1645 | { |
9c45ca93 |
1646 | assert(0); |
57871462 |
1647 | } |
1648 | if(opcode2[i]==0x3f) // DSRA32 |
1649 | { |
9c45ca93 |
1650 | assert(0); |
57871462 |
1651 | } |
1652 | } |
1653 | |
ad49de89 |
1654 | static void shift_alloc(struct regstat *current,int i) |
57871462 |
1655 | { |
1656 | if(rt1[i]) { |
1657 | if(opcode2[i]<=0x07) // SLLV/SRLV/SRAV |
1658 | { |
1659 | if(rs1[i]) alloc_reg(current,i,rs1[i]); |
1660 | if(rs2[i]) alloc_reg(current,i,rs2[i]); |
1661 | alloc_reg(current,i,rt1[i]); |
e1190b87 |
1662 | if(rt1[i]==rs2[i]) { |
1663 | alloc_reg_temp(current,i,-1); |
1664 | minimum_free_regs[i]=1; |
1665 | } |
57871462 |
1666 | } else { // DSLLV/DSRLV/DSRAV |
00fa9369 |
1667 | assert(0); |
57871462 |
1668 | } |
1669 | clear_const(current,rs1[i]); |
1670 | clear_const(current,rs2[i]); |
1671 | clear_const(current,rt1[i]); |
1672 | dirty_reg(current,rt1[i]); |
1673 | } |
1674 | } |
1675 | |
ad49de89 |
1676 | static void alu_alloc(struct regstat *current,int i) |
57871462 |
1677 | { |
1678 | if(opcode2[i]>=0x20&&opcode2[i]<=0x23) { // ADD/ADDU/SUB/SUBU |
1679 | if(rt1[i]) { |
1680 | if(rs1[i]&&rs2[i]) { |
1681 | alloc_reg(current,i,rs1[i]); |
1682 | alloc_reg(current,i,rs2[i]); |
1683 | } |
1684 | else { |
1685 | if(rs1[i]&&needed_again(rs1[i],i)) alloc_reg(current,i,rs1[i]); |
1686 | if(rs2[i]&&needed_again(rs2[i],i)) alloc_reg(current,i,rs2[i]); |
1687 | } |
1688 | alloc_reg(current,i,rt1[i]); |
1689 | } |
57871462 |
1690 | } |
1691 | if(opcode2[i]==0x2a||opcode2[i]==0x2b) { // SLT/SLTU |
1692 | if(rt1[i]) { |
ad49de89 |
1693 | alloc_reg(current,i,rs1[i]); |
1694 | alloc_reg(current,i,rs2[i]); |
1695 | alloc_reg(current,i,rt1[i]); |
57871462 |
1696 | } |
57871462 |
1697 | } |
1698 | if(opcode2[i]>=0x24&&opcode2[i]<=0x27) { // AND/OR/XOR/NOR |
1699 | if(rt1[i]) { |
1700 | if(rs1[i]&&rs2[i]) { |
1701 | alloc_reg(current,i,rs1[i]); |
1702 | alloc_reg(current,i,rs2[i]); |
1703 | } |
1704 | else |
1705 | { |
1706 | if(rs1[i]&&needed_again(rs1[i],i)) alloc_reg(current,i,rs1[i]); |
1707 | if(rs2[i]&&needed_again(rs2[i],i)) alloc_reg(current,i,rs2[i]); |
1708 | } |
1709 | alloc_reg(current,i,rt1[i]); |
57871462 |
1710 | } |
1711 | } |
1712 | if(opcode2[i]>=0x2c&&opcode2[i]<=0x2f) { // DADD/DADDU/DSUB/DSUBU |
00fa9369 |
1713 | assert(0); |
57871462 |
1714 | } |
1715 | clear_const(current,rs1[i]); |
1716 | clear_const(current,rs2[i]); |
1717 | clear_const(current,rt1[i]); |
1718 | dirty_reg(current,rt1[i]); |
1719 | } |
1720 | |
ad49de89 |
1721 | static void imm16_alloc(struct regstat *current,int i) |
57871462 |
1722 | { |
1723 | if(rs1[i]&&needed_again(rs1[i],i)) alloc_reg(current,i,rs1[i]); |
1724 | else lt1[i]=rs1[i]; |
1725 | if(rt1[i]) alloc_reg(current,i,rt1[i]); |
1726 | if(opcode[i]==0x18||opcode[i]==0x19) { // DADDI/DADDIU |
00fa9369 |
1727 | assert(0); |
57871462 |
1728 | } |
1729 | else if(opcode[i]==0x0a||opcode[i]==0x0b) { // SLTI/SLTIU |
57871462 |
1730 | clear_const(current,rs1[i]); |
1731 | clear_const(current,rt1[i]); |
1732 | } |
1733 | else if(opcode[i]>=0x0c&&opcode[i]<=0x0e) { // ANDI/ORI/XORI |
57871462 |
1734 | if(is_const(current,rs1[i])) { |
1735 | int v=get_const(current,rs1[i]); |
1736 | if(opcode[i]==0x0c) set_const(current,rt1[i],v&imm[i]); |
1737 | if(opcode[i]==0x0d) set_const(current,rt1[i],v|imm[i]); |
1738 | if(opcode[i]==0x0e) set_const(current,rt1[i],v^imm[i]); |
1739 | } |
1740 | else clear_const(current,rt1[i]); |
1741 | } |
1742 | else if(opcode[i]==0x08||opcode[i]==0x09) { // ADDI/ADDIU |
1743 | if(is_const(current,rs1[i])) { |
1744 | int v=get_const(current,rs1[i]); |
1745 | set_const(current,rt1[i],v+imm[i]); |
1746 | } |
1747 | else clear_const(current,rt1[i]); |
57871462 |
1748 | } |
1749 | else { |
40fca85b |
1750 | set_const(current,rt1[i],imm[i]<<16); // LUI |
57871462 |
1751 | } |
1752 | dirty_reg(current,rt1[i]); |
1753 | } |
1754 | |
ad49de89 |
1755 | static void load_alloc(struct regstat *current,int i) |
57871462 |
1756 | { |
1757 | clear_const(current,rt1[i]); |
1758 | //if(rs1[i]!=rt1[i]&&needed_again(rs1[i],i)) clear_const(current,rs1[i]); // Does this help or hurt? |
1759 | if(!rs1[i]) current->u&=~1LL; // Allow allocating r0 if it's the source register |
1760 | if(needed_again(rs1[i],i)) alloc_reg(current,i,rs1[i]); |
373d1d07 |
1761 | if(rt1[i]&&!((current->u>>rt1[i])&1)) { |
57871462 |
1762 | alloc_reg(current,i,rt1[i]); |
373d1d07 |
1763 | assert(get_reg(current->regmap,rt1[i])>=0); |
57871462 |
1764 | if(opcode[i]==0x27||opcode[i]==0x37) // LWU/LD |
1765 | { |
ad49de89 |
1766 | assert(0); |
57871462 |
1767 | } |
1768 | else if(opcode[i]==0x1A||opcode[i]==0x1B) // LDL/LDR |
1769 | { |
ad49de89 |
1770 | assert(0); |
57871462 |
1771 | } |
57871462 |
1772 | dirty_reg(current,rt1[i]); |
57871462 |
1773 | // LWL/LWR need a temporary register for the old value |
1774 | if(opcode[i]==0x22||opcode[i]==0x26) |
1775 | { |
1776 | alloc_reg(current,i,FTEMP); |
1777 | alloc_reg_temp(current,i,-1); |
e1190b87 |
1778 | minimum_free_regs[i]=1; |
57871462 |
1779 | } |
1780 | } |
1781 | else |
1782 | { |
373d1d07 |
1783 | // Load to r0 or unneeded register (dummy load) |
57871462 |
1784 | // but we still need a register to calculate the address |
535d208a |
1785 | if(opcode[i]==0x22||opcode[i]==0x26) |
1786 | { |
1787 | alloc_reg(current,i,FTEMP); // LWL/LWR need another temporary |
1788 | } |
57871462 |
1789 | alloc_reg_temp(current,i,-1); |
e1190b87 |
1790 | minimum_free_regs[i]=1; |
535d208a |
1791 | if(opcode[i]==0x1A||opcode[i]==0x1B) // LDL/LDR |
1792 | { |
ad49de89 |
1793 | assert(0); |
535d208a |
1794 | } |
57871462 |
1795 | } |
1796 | } |
1797 | |
1798 | void store_alloc(struct regstat *current,int i) |
1799 | { |
1800 | clear_const(current,rs2[i]); |
1801 | if(!(rs2[i])) current->u&=~1LL; // Allow allocating r0 if necessary |
1802 | if(needed_again(rs1[i],i)) alloc_reg(current,i,rs1[i]); |
1803 | alloc_reg(current,i,rs2[i]); |
1804 | if(opcode[i]==0x2c||opcode[i]==0x2d||opcode[i]==0x3f) { // 64-bit SDL/SDR/SD |
ad49de89 |
1805 | assert(0); |
57871462 |
1806 | } |
57871462 |
1807 | #if defined(HOST_IMM8) |
1808 | // On CPUs without 32-bit immediates we need a pointer to invalid_code |
1809 | else alloc_reg(current,i,INVCP); |
1810 | #endif |
b7918751 |
1811 | if(opcode[i]==0x2a||opcode[i]==0x2e||opcode[i]==0x2c||opcode[i]==0x2d) { // SWL/SWL/SDL/SDR |
57871462 |
1812 | alloc_reg(current,i,FTEMP); |
1813 | } |
1814 | // We need a temporary register for address generation |
1815 | alloc_reg_temp(current,i,-1); |
e1190b87 |
1816 | minimum_free_regs[i]=1; |
57871462 |
1817 | } |
1818 | |
1819 | void c1ls_alloc(struct regstat *current,int i) |
1820 | { |
1821 | //clear_const(current,rs1[i]); // FIXME |
1822 | clear_const(current,rt1[i]); |
1823 | if(needed_again(rs1[i],i)) alloc_reg(current,i,rs1[i]); |
1824 | alloc_reg(current,i,CSREG); // Status |
1825 | alloc_reg(current,i,FTEMP); |
1826 | if(opcode[i]==0x35||opcode[i]==0x3d) { // 64-bit LDC1/SDC1 |
ad49de89 |
1827 | assert(0); |
57871462 |
1828 | } |
57871462 |
1829 | #if defined(HOST_IMM8) |
1830 | // On CPUs without 32-bit immediates we need a pointer to invalid_code |
1831 | else if((opcode[i]&0x3b)==0x39) // SWC1/SDC1 |
1832 | alloc_reg(current,i,INVCP); |
1833 | #endif |
1834 | // We need a temporary register for address generation |
1835 | alloc_reg_temp(current,i,-1); |
1836 | } |
1837 | |
b9b61529 |
1838 | void c2ls_alloc(struct regstat *current,int i) |
1839 | { |
1840 | clear_const(current,rt1[i]); |
1841 | if(needed_again(rs1[i],i)) alloc_reg(current,i,rs1[i]); |
1842 | alloc_reg(current,i,FTEMP); |
b9b61529 |
1843 | #if defined(HOST_IMM8) |
1844 | // On CPUs without 32-bit immediates we need a pointer to invalid_code |
1edfcc68 |
1845 | if((opcode[i]&0x3b)==0x3a) // SWC2/SDC2 |
b9b61529 |
1846 | alloc_reg(current,i,INVCP); |
1847 | #endif |
1848 | // We need a temporary register for address generation |
1849 | alloc_reg_temp(current,i,-1); |
e1190b87 |
1850 | minimum_free_regs[i]=1; |
b9b61529 |
1851 | } |
1852 | |
57871462 |
1853 | #ifndef multdiv_alloc |
1854 | void multdiv_alloc(struct regstat *current,int i) |
1855 | { |
1856 | // case 0x18: MULT |
1857 | // case 0x19: MULTU |
1858 | // case 0x1A: DIV |
1859 | // case 0x1B: DIVU |
1860 | // case 0x1C: DMULT |
1861 | // case 0x1D: DMULTU |
1862 | // case 0x1E: DDIV |
1863 | // case 0x1F: DDIVU |
1864 | clear_const(current,rs1[i]); |
1865 | clear_const(current,rs2[i]); |
1866 | if(rs1[i]&&rs2[i]) |
1867 | { |
1868 | if((opcode2[i]&4)==0) // 32-bit |
1869 | { |
1870 | current->u&=~(1LL<<HIREG); |
1871 | current->u&=~(1LL<<LOREG); |
1872 | alloc_reg(current,i,HIREG); |
1873 | alloc_reg(current,i,LOREG); |
1874 | alloc_reg(current,i,rs1[i]); |
1875 | alloc_reg(current,i,rs2[i]); |
57871462 |
1876 | dirty_reg(current,HIREG); |
1877 | dirty_reg(current,LOREG); |
1878 | } |
1879 | else // 64-bit |
1880 | { |
00fa9369 |
1881 | assert(0); |
57871462 |
1882 | } |
1883 | } |
1884 | else |
1885 | { |
1886 | // Multiply by zero is zero. |
1887 | // MIPS does not have a divide by zero exception. |
1888 | // The result is undefined, we return zero. |
1889 | alloc_reg(current,i,HIREG); |
1890 | alloc_reg(current,i,LOREG); |
57871462 |
1891 | dirty_reg(current,HIREG); |
1892 | dirty_reg(current,LOREG); |
1893 | } |
1894 | } |
1895 | #endif |
1896 | |
1897 | void cop0_alloc(struct regstat *current,int i) |
1898 | { |
1899 | if(opcode2[i]==0) // MFC0 |
1900 | { |
1901 | if(rt1[i]) { |
1902 | clear_const(current,rt1[i]); |
1903 | alloc_all(current,i); |
1904 | alloc_reg(current,i,rt1[i]); |
57871462 |
1905 | dirty_reg(current,rt1[i]); |
1906 | } |
1907 | } |
1908 | else if(opcode2[i]==4) // MTC0 |
1909 | { |
1910 | if(rs1[i]){ |
1911 | clear_const(current,rs1[i]); |
1912 | alloc_reg(current,i,rs1[i]); |
1913 | alloc_all(current,i); |
1914 | } |
1915 | else { |
1916 | alloc_all(current,i); // FIXME: Keep r0 |
1917 | current->u&=~1LL; |
1918 | alloc_reg(current,i,0); |
1919 | } |
1920 | } |
1921 | else |
1922 | { |
1923 | // TLBR/TLBWI/TLBWR/TLBP/ERET |
1924 | assert(opcode2[i]==0x10); |
1925 | alloc_all(current,i); |
1926 | } |
e1190b87 |
1927 | minimum_free_regs[i]=HOST_REGS; |
57871462 |
1928 | } |
1929 | |
81dbbf4c |
1930 | static void cop2_alloc(struct regstat *current,int i) |
57871462 |
1931 | { |
81dbbf4c |
1932 | if (opcode2[i] < 3) // MFC2/CFC2 |
57871462 |
1933 | { |
81dbbf4c |
1934 | alloc_cc(current,i); // for stalls |
1935 | dirty_reg(current,CCREG); |
7de557a6 |
1936 | if(rt1[i]){ |
1937 | clear_const(current,rt1[i]); |
00fa9369 |
1938 | alloc_reg(current,i,rt1[i]); |
7de557a6 |
1939 | dirty_reg(current,rt1[i]); |
57871462 |
1940 | } |
57871462 |
1941 | } |
81dbbf4c |
1942 | else if (opcode2[i] > 3) // MTC2/CTC2 |
57871462 |
1943 | { |
1944 | if(rs1[i]){ |
1945 | clear_const(current,rs1[i]); |
00fa9369 |
1946 | alloc_reg(current,i,rs1[i]); |
57871462 |
1947 | } |
1948 | else { |
1949 | current->u&=~1LL; |
1950 | alloc_reg(current,i,0); |
57871462 |
1951 | } |
1952 | } |
81dbbf4c |
1953 | alloc_reg_temp(current,i,-1); |
e1190b87 |
1954 | minimum_free_regs[i]=1; |
57871462 |
1955 | } |
00fa9369 |
1956 | |
b9b61529 |
1957 | void c2op_alloc(struct regstat *current,int i) |
1958 | { |
81dbbf4c |
1959 | alloc_cc(current,i); // for stalls |
1960 | dirty_reg(current,CCREG); |
b9b61529 |
1961 | alloc_reg_temp(current,i,-1); |
1962 | } |
57871462 |
1963 | |
1964 | void syscall_alloc(struct regstat *current,int i) |
1965 | { |
1966 | alloc_cc(current,i); |
1967 | dirty_reg(current,CCREG); |
1968 | alloc_all(current,i); |
e1190b87 |
1969 | minimum_free_regs[i]=HOST_REGS; |
57871462 |
1970 | current->isconst=0; |
1971 | } |
1972 | |
1973 | void delayslot_alloc(struct regstat *current,int i) |
1974 | { |
1975 | switch(itype[i]) { |
1976 | case UJUMP: |
1977 | case CJUMP: |
1978 | case SJUMP: |
1979 | case RJUMP: |
57871462 |
1980 | case SYSCALL: |
7139f3c8 |
1981 | case HLECALL: |
57871462 |
1982 | case SPAN: |
7c3a5182 |
1983 | assem_debug("jump in the delay slot. this shouldn't happen.\n");//abort(); |
c43b5311 |
1984 | SysPrintf("Disabled speculative precompilation\n"); |
57871462 |
1985 | stop_after_jal=1; |
1986 | break; |
1987 | case IMM16: |
1988 | imm16_alloc(current,i); |
1989 | break; |
1990 | case LOAD: |
1991 | case LOADLR: |
1992 | load_alloc(current,i); |
1993 | break; |
1994 | case STORE: |
1995 | case STORELR: |
1996 | store_alloc(current,i); |
1997 | break; |
1998 | case ALU: |
1999 | alu_alloc(current,i); |
2000 | break; |
2001 | case SHIFT: |
2002 | shift_alloc(current,i); |
2003 | break; |
2004 | case MULTDIV: |
2005 | multdiv_alloc(current,i); |
2006 | break; |
2007 | case SHIFTIMM: |
2008 | shiftimm_alloc(current,i); |
2009 | break; |
2010 | case MOV: |
2011 | mov_alloc(current,i); |
2012 | break; |
2013 | case COP0: |
2014 | cop0_alloc(current,i); |
2015 | break; |
2016 | case COP1: |
81dbbf4c |
2017 | break; |
b9b61529 |
2018 | case COP2: |
81dbbf4c |
2019 | cop2_alloc(current,i); |
57871462 |
2020 | break; |
2021 | case C1LS: |
2022 | c1ls_alloc(current,i); |
2023 | break; |
b9b61529 |
2024 | case C2LS: |
2025 | c2ls_alloc(current,i); |
2026 | break; |
b9b61529 |
2027 | case C2OP: |
2028 | c2op_alloc(current,i); |
2029 | break; |
57871462 |
2030 | } |
2031 | } |
2032 | |
2033 | // Special case where a branch and delay slot span two pages in virtual memory |
2034 | static void pagespan_alloc(struct regstat *current,int i) |
2035 | { |
2036 | current->isconst=0; |
2037 | current->wasconst=0; |
2038 | regs[i].wasconst=0; |
e1190b87 |
2039 | minimum_free_regs[i]=HOST_REGS; |
57871462 |
2040 | alloc_all(current,i); |
2041 | alloc_cc(current,i); |
2042 | dirty_reg(current,CCREG); |
2043 | if(opcode[i]==3) // JAL |
2044 | { |
2045 | alloc_reg(current,i,31); |
2046 | dirty_reg(current,31); |
2047 | } |
2048 | if(opcode[i]==0&&(opcode2[i]&0x3E)==8) // JR/JALR |
2049 | { |
2050 | alloc_reg(current,i,rs1[i]); |
5067f341 |
2051 | if (rt1[i]!=0) { |
2052 | alloc_reg(current,i,rt1[i]); |
2053 | dirty_reg(current,rt1[i]); |
57871462 |
2054 | } |
2055 | } |
2056 | if((opcode[i]&0x2E)==4) // BEQ/BNE/BEQL/BNEL |
2057 | { |
2058 | if(rs1[i]) alloc_reg(current,i,rs1[i]); |
2059 | if(rs2[i]) alloc_reg(current,i,rs2[i]); |
57871462 |
2060 | } |
2061 | else |
2062 | if((opcode[i]&0x2E)==6) // BLEZ/BGTZ/BLEZL/BGTZL |
2063 | { |
2064 | if(rs1[i]) alloc_reg(current,i,rs1[i]); |
57871462 |
2065 | } |
57871462 |
2066 | //else ... |
2067 | } |
2068 | |
b14b6a8f |
2069 | static void add_stub(enum stub_type type, void *addr, void *retaddr, |
2070 | u_int a, uintptr_t b, uintptr_t c, u_int d, u_int e) |
2071 | { |
d1e4ebd9 |
2072 | assert(stubcount < ARRAY_SIZE(stubs)); |
b14b6a8f |
2073 | stubs[stubcount].type = type; |
2074 | stubs[stubcount].addr = addr; |
2075 | stubs[stubcount].retaddr = retaddr; |
2076 | stubs[stubcount].a = a; |
2077 | stubs[stubcount].b = b; |
2078 | stubs[stubcount].c = c; |
2079 | stubs[stubcount].d = d; |
2080 | stubs[stubcount].e = e; |
57871462 |
2081 | stubcount++; |
2082 | } |
2083 | |
b14b6a8f |
2084 | static void add_stub_r(enum stub_type type, void *addr, void *retaddr, |
81dbbf4c |
2085 | int i, int addr_reg, const struct regstat *i_regs, int ccadj, u_int reglist) |
b14b6a8f |
2086 | { |
2087 | add_stub(type, addr, retaddr, i, addr_reg, (uintptr_t)i_regs, ccadj, reglist); |
2088 | } |
2089 | |
57871462 |
2090 | // Write out a single register |
ad49de89 |
2091 | static void wb_register(signed char r,signed char regmap[],uint64_t dirty) |
57871462 |
2092 | { |
2093 | int hr; |
2094 | for(hr=0;hr<HOST_REGS;hr++) { |
2095 | if(hr!=EXCLUDE_REG) { |
2096 | if((regmap[hr]&63)==r) { |
2097 | if((dirty>>hr)&1) { |
ad49de89 |
2098 | assert(regmap[hr]<64); |
2099 | emit_storereg(r,hr); |
57871462 |
2100 | } |
2101 | } |
2102 | } |
2103 | } |
2104 | } |
2105 | |
8062d65a |
2106 | static void wb_valid(signed char pre[],signed char entry[],u_int dirty_pre,u_int dirty,uint64_t u) |
2107 | { |
2108 | //if(dirty_pre==dirty) return; |
2109 | int hr,reg; |
2110 | for(hr=0;hr<HOST_REGS;hr++) { |
2111 | if(hr!=EXCLUDE_REG) { |
2112 | reg=pre[hr]; |
2113 | if(((~u)>>(reg&63))&1) { |
2114 | if(reg>0) { |
2115 | if(((dirty_pre&~dirty)>>hr)&1) { |
2116 | if(reg>0&®<34) { |
2117 | emit_storereg(reg,hr); |
2118 | } |
2119 | else if(reg>=64) { |
2120 | assert(0); |
2121 | } |
2122 | } |
2123 | } |
2124 | } |
2125 | } |
2126 | } |
2127 | } |
2128 | |
687b4580 |
2129 | // trashes r2 |
2130 | static void pass_args(int a0, int a1) |
2131 | { |
2132 | if(a0==1&&a1==0) { |
2133 | // must swap |
2134 | emit_mov(a0,2); emit_mov(a1,1); emit_mov(2,0); |
2135 | } |
2136 | else if(a0!=0&&a1==0) { |
2137 | emit_mov(a1,1); |
2138 | if (a0>=0) emit_mov(a0,0); |
2139 | } |
2140 | else { |
2141 | if(a0>=0&&a0!=0) emit_mov(a0,0); |
2142 | if(a1>=0&&a1!=1) emit_mov(a1,1); |
2143 | } |
2144 | } |
2145 | |
2146 | static void alu_assemble(int i,struct regstat *i_regs) |
57871462 |
2147 | { |
2148 | if(opcode2[i]>=0x20&&opcode2[i]<=0x23) { // ADD/ADDU/SUB/SUBU |
2149 | if(rt1[i]) { |
2150 | signed char s1,s2,t; |
2151 | t=get_reg(i_regs->regmap,rt1[i]); |
2152 | if(t>=0) { |
2153 | s1=get_reg(i_regs->regmap,rs1[i]); |
2154 | s2=get_reg(i_regs->regmap,rs2[i]); |
2155 | if(rs1[i]&&rs2[i]) { |
2156 | assert(s1>=0); |
2157 | assert(s2>=0); |
2158 | if(opcode2[i]&2) emit_sub(s1,s2,t); |
2159 | else emit_add(s1,s2,t); |
2160 | } |
2161 | else if(rs1[i]) { |
2162 | if(s1>=0) emit_mov(s1,t); |
2163 | else emit_loadreg(rs1[i],t); |
2164 | } |
2165 | else if(rs2[i]) { |
2166 | if(s2>=0) { |
2167 | if(opcode2[i]&2) emit_neg(s2,t); |
2168 | else emit_mov(s2,t); |
2169 | } |
2170 | else { |
2171 | emit_loadreg(rs2[i],t); |
2172 | if(opcode2[i]&2) emit_neg(t,t); |
2173 | } |
2174 | } |
2175 | else emit_zeroreg(t); |
2176 | } |
2177 | } |
2178 | } |
2179 | if(opcode2[i]>=0x2c&&opcode2[i]<=0x2f) { // DADD/DADDU/DSUB/DSUBU |
00fa9369 |
2180 | assert(0); |
57871462 |
2181 | } |
2182 | if(opcode2[i]==0x2a||opcode2[i]==0x2b) { // SLT/SLTU |
2183 | if(rt1[i]) { |
ad49de89 |
2184 | signed char s1l,s2l,t; |
57871462 |
2185 | { |
57871462 |
2186 | t=get_reg(i_regs->regmap,rt1[i]); |
2187 | //assert(t>=0); |
2188 | if(t>=0) { |
2189 | s1l=get_reg(i_regs->regmap,rs1[i]); |
2190 | s2l=get_reg(i_regs->regmap,rs2[i]); |
2191 | if(rs2[i]==0) // rx<r0 |
2192 | { |
06e425d7 |
2193 | if(opcode2[i]==0x2a&&rs1[i]!=0) { // SLT |
2194 | assert(s1l>=0); |
57871462 |
2195 | emit_shrimm(s1l,31,t); |
06e425d7 |
2196 | } |
2197 | else // SLTU (unsigned can not be less than zero, 0<0) |
57871462 |
2198 | emit_zeroreg(t); |
2199 | } |
2200 | else if(rs1[i]==0) // r0<rx |
2201 | { |
2202 | assert(s2l>=0); |
2203 | if(opcode2[i]==0x2a) // SLT |
2204 | emit_set_gz32(s2l,t); |
2205 | else // SLTU (set if not zero) |
2206 | emit_set_nz32(s2l,t); |
2207 | } |
2208 | else{ |
2209 | assert(s1l>=0);assert(s2l>=0); |
2210 | if(opcode2[i]==0x2a) // SLT |
2211 | emit_set_if_less32(s1l,s2l,t); |
2212 | else // SLTU |
2213 | emit_set_if_carry32(s1l,s2l,t); |
2214 | } |
2215 | } |
2216 | } |
2217 | } |
2218 | } |
2219 | if(opcode2[i]>=0x24&&opcode2[i]<=0x27) { // AND/OR/XOR/NOR |
2220 | if(rt1[i]) { |
ad49de89 |
2221 | signed char s1l,s2l,tl; |
57871462 |
2222 | tl=get_reg(i_regs->regmap,rt1[i]); |
57871462 |
2223 | { |
57871462 |
2224 | if(tl>=0) { |
2225 | s1l=get_reg(i_regs->regmap,rs1[i]); |
2226 | s2l=get_reg(i_regs->regmap,rs2[i]); |
2227 | if(rs1[i]&&rs2[i]) { |
2228 | assert(s1l>=0); |
2229 | assert(s2l>=0); |
2230 | if(opcode2[i]==0x24) { // AND |
2231 | emit_and(s1l,s2l,tl); |
2232 | } else |
2233 | if(opcode2[i]==0x25) { // OR |
2234 | emit_or(s1l,s2l,tl); |
2235 | } else |
2236 | if(opcode2[i]==0x26) { // XOR |
2237 | emit_xor(s1l,s2l,tl); |
2238 | } else |
2239 | if(opcode2[i]==0x27) { // NOR |
2240 | emit_or(s1l,s2l,tl); |
2241 | emit_not(tl,tl); |
2242 | } |
2243 | } |
2244 | else |
2245 | { |
2246 | if(opcode2[i]==0x24) { // AND |
2247 | emit_zeroreg(tl); |
2248 | } else |
2249 | if(opcode2[i]==0x25||opcode2[i]==0x26) { // OR/XOR |
2250 | if(rs1[i]){ |
2251 | if(s1l>=0) emit_mov(s1l,tl); |
2252 | else emit_loadreg(rs1[i],tl); // CHECK: regmap_entry? |
2253 | } |
2254 | else |
2255 | if(rs2[i]){ |
2256 | if(s2l>=0) emit_mov(s2l,tl); |
2257 | else emit_loadreg(rs2[i],tl); // CHECK: regmap_entry? |
2258 | } |
2259 | else emit_zeroreg(tl); |
2260 | } else |
2261 | if(opcode2[i]==0x27) { // NOR |
2262 | if(rs1[i]){ |
2263 | if(s1l>=0) emit_not(s1l,tl); |
2264 | else { |
2265 | emit_loadreg(rs1[i],tl); |
2266 | emit_not(tl,tl); |
2267 | } |
2268 | } |
2269 | else |
2270 | if(rs2[i]){ |
2271 | if(s2l>=0) emit_not(s2l,tl); |
2272 | else { |
2273 | emit_loadreg(rs2[i],tl); |
2274 | emit_not(tl,tl); |
2275 | } |
2276 | } |
2277 | else emit_movimm(-1,tl); |
2278 | } |
2279 | } |
2280 | } |
2281 | } |
2282 | } |
2283 | } |
2284 | } |
2285 | |
2286 | void imm16_assemble(int i,struct regstat *i_regs) |
2287 | { |
2288 | if (opcode[i]==0x0f) { // LUI |
2289 | if(rt1[i]) { |
2290 | signed char t; |
2291 | t=get_reg(i_regs->regmap,rt1[i]); |
2292 | //assert(t>=0); |
2293 | if(t>=0) { |
2294 | if(!((i_regs->isconst>>t)&1)) |
2295 | emit_movimm(imm[i]<<16,t); |
2296 | } |
2297 | } |
2298 | } |
2299 | if(opcode[i]==0x08||opcode[i]==0x09) { // ADDI/ADDIU |
2300 | if(rt1[i]) { |
2301 | signed char s,t; |
2302 | t=get_reg(i_regs->regmap,rt1[i]); |
2303 | s=get_reg(i_regs->regmap,rs1[i]); |
2304 | if(rs1[i]) { |
2305 | //assert(t>=0); |
2306 | //assert(s>=0); |
2307 | if(t>=0) { |
2308 | if(!((i_regs->isconst>>t)&1)) { |
2309 | if(s<0) { |
2310 | if(i_regs->regmap_entry[t]!=rs1[i]) emit_loadreg(rs1[i],t); |
2311 | emit_addimm(t,imm[i],t); |
2312 | }else{ |
2313 | if(!((i_regs->wasconst>>s)&1)) |
2314 | emit_addimm(s,imm[i],t); |
2315 | else |
2316 | emit_movimm(constmap[i][s]+imm[i],t); |
2317 | } |
2318 | } |
2319 | } |
2320 | } else { |
2321 | if(t>=0) { |
2322 | if(!((i_regs->isconst>>t)&1)) |
2323 | emit_movimm(imm[i],t); |
2324 | } |
2325 | } |
2326 | } |
2327 | } |
2328 | if(opcode[i]==0x18||opcode[i]==0x19) { // DADDI/DADDIU |
2329 | if(rt1[i]) { |
7c3a5182 |
2330 | signed char sl,tl; |
57871462 |
2331 | tl=get_reg(i_regs->regmap,rt1[i]); |
57871462 |
2332 | sl=get_reg(i_regs->regmap,rs1[i]); |
2333 | if(tl>=0) { |
2334 | if(rs1[i]) { |
57871462 |
2335 | assert(sl>=0); |
7c3a5182 |
2336 | emit_addimm(sl,imm[i],tl); |
57871462 |
2337 | } else { |
2338 | emit_movimm(imm[i],tl); |
57871462 |
2339 | } |
2340 | } |
2341 | } |
2342 | } |
2343 | else if(opcode[i]==0x0a||opcode[i]==0x0b) { // SLTI/SLTIU |
2344 | if(rt1[i]) { |
2345 | //assert(rs1[i]!=0); // r0 might be valid, but it's probably a bug |
ad49de89 |
2346 | signed char sl,t; |
57871462 |
2347 | t=get_reg(i_regs->regmap,rt1[i]); |
57871462 |
2348 | sl=get_reg(i_regs->regmap,rs1[i]); |
2349 | //assert(t>=0); |
2350 | if(t>=0) { |
2351 | if(rs1[i]>0) { |
57871462 |
2352 | if(opcode[i]==0x0a) { // SLTI |
2353 | if(sl<0) { |
2354 | if(i_regs->regmap_entry[t]!=rs1[i]) emit_loadreg(rs1[i],t); |
2355 | emit_slti32(t,imm[i],t); |
2356 | }else{ |
2357 | emit_slti32(sl,imm[i],t); |
2358 | } |
2359 | } |
2360 | else { // SLTIU |
2361 | if(sl<0) { |
2362 | if(i_regs->regmap_entry[t]!=rs1[i]) emit_loadreg(rs1[i],t); |
2363 | emit_sltiu32(t,imm[i],t); |
2364 | }else{ |
2365 | emit_sltiu32(sl,imm[i],t); |
2366 | } |
2367 | } |
57871462 |
2368 | }else{ |
2369 | // SLTI(U) with r0 is just stupid, |
2370 | // nonetheless examples can be found |
2371 | if(opcode[i]==0x0a) // SLTI |
2372 | if(0<imm[i]) emit_movimm(1,t); |
2373 | else emit_zeroreg(t); |
2374 | else // SLTIU |
2375 | { |
2376 | if(imm[i]) emit_movimm(1,t); |
2377 | else emit_zeroreg(t); |
2378 | } |
2379 | } |
2380 | } |
2381 | } |
2382 | } |
2383 | else if(opcode[i]>=0x0c&&opcode[i]<=0x0e) { // ANDI/ORI/XORI |
2384 | if(rt1[i]) { |
7c3a5182 |
2385 | signed char sl,tl; |
57871462 |
2386 | tl=get_reg(i_regs->regmap,rt1[i]); |
57871462 |
2387 | sl=get_reg(i_regs->regmap,rs1[i]); |
2388 | if(tl>=0 && !((i_regs->isconst>>tl)&1)) { |
2389 | if(opcode[i]==0x0c) //ANDI |
2390 | { |
2391 | if(rs1[i]) { |
2392 | if(sl<0) { |
2393 | if(i_regs->regmap_entry[tl]!=rs1[i]) emit_loadreg(rs1[i],tl); |
2394 | emit_andimm(tl,imm[i],tl); |
2395 | }else{ |
2396 | if(!((i_regs->wasconst>>sl)&1)) |
2397 | emit_andimm(sl,imm[i],tl); |
2398 | else |
2399 | emit_movimm(constmap[i][sl]&imm[i],tl); |
2400 | } |
2401 | } |
2402 | else |
2403 | emit_zeroreg(tl); |
57871462 |
2404 | } |
2405 | else |
2406 | { |
2407 | if(rs1[i]) { |
2408 | if(sl<0) { |
2409 | if(i_regs->regmap_entry[tl]!=rs1[i]) emit_loadreg(rs1[i],tl); |
2410 | } |
581335b0 |
2411 | if(opcode[i]==0x0d) { // ORI |
2412 | if(sl<0) { |
2413 | emit_orimm(tl,imm[i],tl); |
2414 | }else{ |
2415 | if(!((i_regs->wasconst>>sl)&1)) |
2416 | emit_orimm(sl,imm[i],tl); |
2417 | else |
2418 | emit_movimm(constmap[i][sl]|imm[i],tl); |
2419 | } |
57871462 |
2420 | } |
581335b0 |
2421 | if(opcode[i]==0x0e) { // XORI |
2422 | if(sl<0) { |
2423 | emit_xorimm(tl,imm[i],tl); |
2424 | }else{ |
2425 | if(!((i_regs->wasconst>>sl)&1)) |
2426 | emit_xorimm(sl,imm[i],tl); |
2427 | else |
2428 | emit_movimm(constmap[i][sl]^imm[i],tl); |
2429 | } |
57871462 |
2430 | } |
2431 | } |
2432 | else { |
2433 | emit_movimm(imm[i],tl); |
57871462 |
2434 | } |
2435 | } |
2436 | } |
2437 | } |
2438 | } |
2439 | } |
2440 | |
2441 | void shiftimm_assemble(int i,struct regstat *i_regs) |
2442 | { |
2443 | if(opcode2[i]<=0x3) // SLL/SRL/SRA |
2444 | { |
2445 | if(rt1[i]) { |
2446 | signed char s,t; |
2447 | t=get_reg(i_regs->regmap,rt1[i]); |
2448 | s=get_reg(i_regs->regmap,rs1[i]); |
2449 | //assert(t>=0); |
dc49e339 |
2450 | if(t>=0&&!((i_regs->isconst>>t)&1)){ |
57871462 |
2451 | if(rs1[i]==0) |
2452 | { |
2453 | emit_zeroreg(t); |
2454 | } |
2455 | else |
2456 | { |
2457 | if(s<0&&i_regs->regmap_entry[t]!=rs1[i]) emit_loadreg(rs1[i],t); |
2458 | if(imm[i]) { |
2459 | if(opcode2[i]==0) // SLL |
2460 | { |
2461 | emit_shlimm(s<0?t:s,imm[i],t); |
2462 | } |
2463 | if(opcode2[i]==2) // SRL |
2464 | { |
2465 | emit_shrimm(s<0?t:s,imm[i],t); |
2466 | } |
2467 | if(opcode2[i]==3) // SRA |
2468 | { |
2469 | emit_sarimm(s<0?t:s,imm[i],t); |
2470 | } |
2471 | }else{ |
2472 | // Shift by zero |
2473 | if(s>=0 && s!=t) emit_mov(s,t); |
2474 | } |
2475 | } |
2476 | } |
2477 | //emit_storereg(rt1[i],t); //DEBUG |
2478 | } |
2479 | } |
2480 | if(opcode2[i]>=0x38&&opcode2[i]<=0x3b) // DSLL/DSRL/DSRA |
2481 | { |
9c45ca93 |
2482 | assert(0); |
57871462 |
2483 | } |
2484 | if(opcode2[i]==0x3c) // DSLL32 |
2485 | { |
9c45ca93 |
2486 | assert(0); |
57871462 |
2487 | } |
2488 | if(opcode2[i]==0x3e) // DSRL32 |
2489 | { |
9c45ca93 |
2490 | assert(0); |
57871462 |
2491 | } |
2492 | if(opcode2[i]==0x3f) // DSRA32 |
2493 | { |
9c45ca93 |
2494 | assert(0); |
57871462 |
2495 | } |
2496 | } |
2497 | |
2498 | #ifndef shift_assemble |
3968e69e |
2499 | static void shift_assemble(int i,struct regstat *i_regs) |
57871462 |
2500 | { |
3968e69e |
2501 | signed char s,t,shift; |
2502 | if (rt1[i] == 0) |
2503 | return; |
2504 | assert(opcode2[i]<=0x07); // SLLV/SRLV/SRAV |
2505 | t = get_reg(i_regs->regmap, rt1[i]); |
2506 | s = get_reg(i_regs->regmap, rs1[i]); |
2507 | shift = get_reg(i_regs->regmap, rs2[i]); |
2508 | if (t < 0) |
2509 | return; |
2510 | |
2511 | if(rs1[i]==0) |
2512 | emit_zeroreg(t); |
2513 | else if(rs2[i]==0) { |
2514 | assert(s>=0); |
2515 | if(s!=t) emit_mov(s,t); |
2516 | } |
2517 | else { |
2518 | host_tempreg_acquire(); |
2519 | emit_andimm(shift,31,HOST_TEMPREG); |
2520 | switch(opcode2[i]) { |
2521 | case 4: // SLLV |
2522 | emit_shl(s,HOST_TEMPREG,t); |
2523 | break; |
2524 | case 6: // SRLV |
2525 | emit_shr(s,HOST_TEMPREG,t); |
2526 | break; |
2527 | case 7: // SRAV |
2528 | emit_sar(s,HOST_TEMPREG,t); |
2529 | break; |
2530 | default: |
2531 | assert(0); |
2532 | } |
2533 | host_tempreg_release(); |
2534 | } |
57871462 |
2535 | } |
3968e69e |
2536 | |
57871462 |
2537 | #endif |
2538 | |
8062d65a |
2539 | enum { |
2540 | MTYPE_8000 = 0, |
2541 | MTYPE_8020, |
2542 | MTYPE_0000, |
2543 | MTYPE_A000, |
2544 | MTYPE_1F80, |
2545 | }; |
2546 | |
2547 | static int get_ptr_mem_type(u_int a) |
2548 | { |
2549 | if(a < 0x00200000) { |
2550 | if(a<0x1000&&((start>>20)==0xbfc||(start>>24)==0xa0)) |
2551 | // return wrong, must use memhandler for BIOS self-test to pass |
2552 | // 007 does similar stuff from a00 mirror, weird stuff |
2553 | return MTYPE_8000; |
2554 | return MTYPE_0000; |
2555 | } |
2556 | if(0x1f800000 <= a && a < 0x1f801000) |
2557 | return MTYPE_1F80; |
2558 | if(0x80200000 <= a && a < 0x80800000) |
2559 | return MTYPE_8020; |
2560 | if(0xa0000000 <= a && a < 0xa0200000) |
2561 | return MTYPE_A000; |
2562 | return MTYPE_8000; |
2563 | } |
2564 | |
2565 | static void *emit_fastpath_cmp_jump(int i,int addr,int *addr_reg_override) |
2566 | { |
2567 | void *jaddr = NULL; |
2568 | int type=0; |
2569 | int mr=rs1[i]; |
2570 | if(((smrv_strong|smrv_weak)>>mr)&1) { |
2571 | type=get_ptr_mem_type(smrv[mr]); |
2572 | //printf("set %08x @%08x r%d %d\n", smrv[mr], start+i*4, mr, type); |
2573 | } |
2574 | else { |
2575 | // use the mirror we are running on |
2576 | type=get_ptr_mem_type(start); |
2577 | //printf("set nospec @%08x r%d %d\n", start+i*4, mr, type); |
2578 | } |
2579 | |
2580 | if(type==MTYPE_8020) { // RAM 80200000+ mirror |
d1e4ebd9 |
2581 | host_tempreg_acquire(); |
8062d65a |
2582 | emit_andimm(addr,~0x00e00000,HOST_TEMPREG); |
2583 | addr=*addr_reg_override=HOST_TEMPREG; |
2584 | type=0; |
2585 | } |
2586 | else if(type==MTYPE_0000) { // RAM 0 mirror |
d1e4ebd9 |
2587 | host_tempreg_acquire(); |
8062d65a |
2588 | emit_orimm(addr,0x80000000,HOST_TEMPREG); |
2589 | addr=*addr_reg_override=HOST_TEMPREG; |
2590 | type=0; |
2591 | } |
2592 | else if(type==MTYPE_A000) { // RAM A mirror |
d1e4ebd9 |
2593 | host_tempreg_acquire(); |
8062d65a |
2594 | emit_andimm(addr,~0x20000000,HOST_TEMPREG); |
2595 | addr=*addr_reg_override=HOST_TEMPREG; |
2596 | type=0; |
2597 | } |
2598 | else if(type==MTYPE_1F80) { // scratchpad |
2599 | if (psxH == (void *)0x1f800000) { |
d1e4ebd9 |
2600 | host_tempreg_acquire(); |
3968e69e |
2601 | emit_xorimm(addr,0x1f800000,HOST_TEMPREG); |
8062d65a |
2602 | emit_cmpimm(HOST_TEMPREG,0x1000); |
d1e4ebd9 |
2603 | host_tempreg_release(); |
8062d65a |
2604 | jaddr=out; |
2605 | emit_jc(0); |
2606 | } |
2607 | else { |
2608 | // do the usual RAM check, jump will go to the right handler |
2609 | type=0; |
2610 | } |
2611 | } |
2612 | |
2613 | if(type==0) |
2614 | { |
2615 | emit_cmpimm(addr,RAM_SIZE); |
2616 | jaddr=out; |
2617 | #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
2618 | // Hint to branch predictor that the branch is unlikely to be taken |
2619 | if(rs1[i]>=28) |
2620 | emit_jno_unlikely(0); |
2621 | else |
2622 | #endif |
2623 | emit_jno(0); |
2624 | if(ram_offset!=0) { |
d1e4ebd9 |
2625 | host_tempreg_acquire(); |
8062d65a |
2626 | emit_addimm(addr,ram_offset,HOST_TEMPREG); |
2627 | addr=*addr_reg_override=HOST_TEMPREG; |
2628 | } |
2629 | } |
2630 | |
2631 | return jaddr; |
2632 | } |
2633 | |
687b4580 |
2634 | // return memhandler, or get directly accessable address and return 0 |
2635 | static void *get_direct_memhandler(void *table, u_int addr, |
2636 | enum stub_type type, uintptr_t *addr_host) |
2637 | { |
2638 | uintptr_t l1, l2 = 0; |
2639 | l1 = ((uintptr_t *)table)[addr>>12]; |
2640 | if ((l1 & (1ul << (sizeof(l1)*8-1))) == 0) { |
2641 | uintptr_t v = l1 << 1; |
2642 | *addr_host = v + addr; |
2643 | return NULL; |
2644 | } |
2645 | else { |
2646 | l1 <<= 1; |
2647 | if (type == LOADB_STUB || type == LOADBU_STUB || type == STOREB_STUB) |
2648 | l2 = ((uintptr_t *)l1)[0x1000/4 + 0x1000/2 + (addr&0xfff)]; |
2649 | else if (type == LOADH_STUB || type == LOADHU_STUB || type == STOREH_STUB) |
2650 | l2=((uintptr_t *)l1)[0x1000/4 + (addr&0xfff)/2]; |
2651 | else |
2652 | l2=((uintptr_t *)l1)[(addr&0xfff)/4]; |
2653 | if ((l2 & (1<<31)) == 0) { |
2654 | uintptr_t v = l2 << 1; |
2655 | *addr_host = v + (addr&0xfff); |
2656 | return NULL; |
2657 | } |
2658 | return (void *)(l2 << 1); |
2659 | } |
2660 | } |
2661 | |
81dbbf4c |
2662 | static u_int get_host_reglist(const signed char *regmap) |
2663 | { |
2664 | u_int reglist = 0, hr; |
2665 | for (hr = 0; hr < HOST_REGS; hr++) { |
2666 | if (hr != EXCLUDE_REG && regmap[hr] >= 0) |
2667 | reglist |= 1 << hr; |
2668 | } |
2669 | return reglist; |
2670 | } |
2671 | |
2672 | static u_int reglist_exclude(u_int reglist, int r1, int r2) |
2673 | { |
2674 | if (r1 >= 0) |
2675 | reglist &= ~(1u << r1); |
2676 | if (r2 >= 0) |
2677 | reglist &= ~(1u << r2); |
2678 | return reglist; |
2679 | } |
2680 | |
e3c6bdb5 |
2681 | // find a temp caller-saved register not in reglist (so assumed to be free) |
2682 | static int reglist_find_free(u_int reglist) |
2683 | { |
2684 | u_int free_regs = ~reglist & CALLER_SAVE_REGS; |
2685 | if (free_regs == 0) |
2686 | return -1; |
2687 | return __builtin_ctz(free_regs); |
2688 | } |
2689 | |
81dbbf4c |
2690 | static void load_assemble(int i, const struct regstat *i_regs) |
57871462 |
2691 | { |
7c3a5182 |
2692 | int s,tl,addr; |
57871462 |
2693 | int offset; |
b14b6a8f |
2694 | void *jaddr=0; |
5bf843dc |
2695 | int memtarget=0,c=0; |
d1e4ebd9 |
2696 | int fastio_reg_override=-1; |
81dbbf4c |
2697 | u_int reglist=get_host_reglist(i_regs->regmap); |
57871462 |
2698 | tl=get_reg(i_regs->regmap,rt1[i]); |
2699 | s=get_reg(i_regs->regmap,rs1[i]); |
2700 | offset=imm[i]; |
57871462 |
2701 | if(i_regs->regmap[HOST_CCREG]==CCREG) reglist&=~(1<<HOST_CCREG); |
2702 | if(s>=0) { |
2703 | c=(i_regs->wasconst>>s)&1; |
af4ee1fe |
2704 | if (c) { |
2705 | memtarget=((signed int)(constmap[i][s]+offset))<(signed int)0x80000000+RAM_SIZE; |
af4ee1fe |
2706 | } |
57871462 |
2707 | } |
57871462 |
2708 | //printf("load_assemble: c=%d\n",c); |
643aeae3 |
2709 | //if(c) printf("load_assemble: const=%lx\n",(long)constmap[i][s]+offset); |
57871462 |
2710 | // FIXME: Even if the load is a NOP, we should check for pagefaults... |
581335b0 |
2711 | if((tl<0&&(!c||(((u_int)constmap[i][s]+offset)>>16)==0x1f80)) |
f18c0f46 |
2712 | ||rt1[i]==0) { |
5bf843dc |
2713 | // could be FIFO, must perform the read |
f18c0f46 |
2714 | // ||dummy read |
5bf843dc |
2715 | assem_debug("(forced read)\n"); |
2716 | tl=get_reg(i_regs->regmap,-1); |
2717 | assert(tl>=0); |
5bf843dc |
2718 | } |
2719 | if(offset||s<0||c) addr=tl; |
2720 | else addr=s; |
535d208a |
2721 | //if(tl<0) tl=get_reg(i_regs->regmap,-1); |
2722 | if(tl>=0) { |
2723 | //printf("load_assemble: c=%d\n",c); |
643aeae3 |
2724 | //if(c) printf("load_assemble: const=%lx\n",(long)constmap[i][s]+offset); |
535d208a |
2725 | assert(tl>=0); // Even if the load is a NOP, we must check for pagefaults and I/O |
2726 | reglist&=~(1<<tl); |
1edfcc68 |
2727 | if(!c) { |
1edfcc68 |
2728 | #ifdef R29_HACK |
2729 | // Strmnnrmn's speed hack |
2730 | if(rs1[i]!=29||start<0x80001000||start>=0x80000000+RAM_SIZE) |
2731 | #endif |
2732 | { |
d1e4ebd9 |
2733 | jaddr=emit_fastpath_cmp_jump(i,addr,&fastio_reg_override); |
535d208a |
2734 | } |
1edfcc68 |
2735 | } |
2736 | else if(ram_offset&&memtarget) { |
d1e4ebd9 |
2737 | host_tempreg_acquire(); |
1edfcc68 |
2738 | emit_addimm(addr,ram_offset,HOST_TEMPREG); |
d1e4ebd9 |
2739 | fastio_reg_override=HOST_TEMPREG; |
535d208a |
2740 | } |
2741 | int dummy=(rt1[i]==0)||(tl!=get_reg(i_regs->regmap,rt1[i])); // ignore loads to r0 and unneeded reg |
2742 | if (opcode[i]==0x20) { // LB |
2743 | if(!c||memtarget) { |
2744 | if(!dummy) { |
57871462 |
2745 | { |
535d208a |
2746 | int x=0,a=tl; |
535d208a |
2747 | if(!c) a=addr; |
d1e4ebd9 |
2748 | if(fastio_reg_override>=0) a=fastio_reg_override; |
b1570849 |
2749 | |
9c45ca93 |
2750 | emit_movsbl_indexed(x,a,tl); |
57871462 |
2751 | } |
57871462 |
2752 | } |
535d208a |
2753 | if(jaddr) |
b14b6a8f |
2754 | add_stub_r(LOADB_STUB,jaddr,out,i,addr,i_regs,ccadj[i],reglist); |
57871462 |
2755 | } |
535d208a |
2756 | else |
2757 | inline_readstub(LOADB_STUB,i,constmap[i][s]+offset,i_regs->regmap,rt1[i],ccadj[i],reglist); |
2758 | } |
2759 | if (opcode[i]==0x21) { // LH |
2760 | if(!c||memtarget) { |
2761 | if(!dummy) { |
9c45ca93 |
2762 | int x=0,a=tl; |
2763 | if(!c) a=addr; |
d1e4ebd9 |
2764 | if(fastio_reg_override>=0) a=fastio_reg_override; |
9c45ca93 |
2765 | emit_movswl_indexed(x,a,tl); |
57871462 |
2766 | } |
535d208a |
2767 | if(jaddr) |
b14b6a8f |
2768 | add_stub_r(LOADH_STUB,jaddr,out,i,addr,i_regs,ccadj[i],reglist); |
57871462 |
2769 | } |
535d208a |
2770 | else |
2771 | inline_readstub(LOADH_STUB,i,constmap[i][s]+offset,i_regs->regmap,rt1[i],ccadj[i],reglist); |
2772 | } |
2773 | if (opcode[i]==0x23) { // LW |
2774 | if(!c||memtarget) { |
2775 | if(!dummy) { |
dadf55f2 |
2776 | int a=addr; |
d1e4ebd9 |
2777 | if(fastio_reg_override>=0) a=fastio_reg_override; |
9c45ca93 |
2778 | emit_readword_indexed(0,a,tl); |
57871462 |
2779 | } |
535d208a |
2780 | if(jaddr) |
b14b6a8f |
2781 | add_stub_r(LOADW_STUB,jaddr,out,i,addr,i_regs,ccadj[i],reglist); |
57871462 |
2782 | } |
535d208a |
2783 | else |
2784 | inline_readstub(LOADW_STUB,i,constmap[i][s]+offset,i_regs->regmap,rt1[i],ccadj[i],reglist); |
2785 | } |
2786 | if (opcode[i]==0x24) { // LBU |
2787 | if(!c||memtarget) { |
2788 | if(!dummy) { |
9c45ca93 |
2789 | int x=0,a=tl; |
2790 | if(!c) a=addr; |
d1e4ebd9 |
2791 | if(fastio_reg_override>=0) a=fastio_reg_override; |
b1570849 |
2792 | |
9c45ca93 |
2793 | emit_movzbl_indexed(x,a,tl); |
57871462 |
2794 | } |
535d208a |
2795 | if(jaddr) |
b14b6a8f |
2796 | add_stub_r(LOADBU_STUB,jaddr,out,i,addr,i_regs,ccadj[i],reglist); |
57871462 |
2797 | } |
535d208a |
2798 | else |
2799 | inline_readstub(LOADBU_STUB,i,constmap[i][s]+offset,i_regs->regmap,rt1[i],ccadj[i],reglist); |
2800 | } |
2801 | if (opcode[i]==0x25) { // LHU |
2802 | if(!c||memtarget) { |
2803 | if(!dummy) { |
9c45ca93 |
2804 | int x=0,a=tl; |
2805 | if(!c) a=addr; |
d1e4ebd9 |
2806 | if(fastio_reg_override>=0) a=fastio_reg_override; |
9c45ca93 |
2807 | emit_movzwl_indexed(x,a,tl); |
57871462 |
2808 | } |
535d208a |
2809 | if(jaddr) |
b14b6a8f |
2810 | add_stub_r(LOADHU_STUB,jaddr,out,i,addr,i_regs,ccadj[i],reglist); |
57871462 |
2811 | } |
535d208a |
2812 | else |
2813 | inline_readstub(LOADHU_STUB,i,constmap[i][s]+offset,i_regs->regmap,rt1[i],ccadj[i],reglist); |
2814 | } |
2815 | if (opcode[i]==0x27) { // LWU |
7c3a5182 |
2816 | assert(0); |
535d208a |
2817 | } |
2818 | if (opcode[i]==0x37) { // LD |
9c45ca93 |
2819 | assert(0); |
57871462 |
2820 | } |
535d208a |
2821 | } |
d1e4ebd9 |
2822 | if (fastio_reg_override == HOST_TEMPREG) |
2823 | host_tempreg_release(); |
57871462 |
2824 | } |
2825 | |
2826 | #ifndef loadlr_assemble |
81dbbf4c |
2827 | static void loadlr_assemble(int i, const struct regstat *i_regs) |
57871462 |
2828 | { |
3968e69e |
2829 | int s,tl,temp,temp2,addr; |
2830 | int offset; |
2831 | void *jaddr=0; |
2832 | int memtarget=0,c=0; |
2833 | int fastio_reg_override=-1; |
81dbbf4c |
2834 | u_int reglist=get_host_reglist(i_regs->regmap); |
3968e69e |
2835 | tl=get_reg(i_regs->regmap,rt1[i]); |
2836 | s=get_reg(i_regs->regmap,rs1[i]); |
2837 | temp=get_reg(i_regs->regmap,-1); |
2838 | temp2=get_reg(i_regs->regmap,FTEMP); |
2839 | addr=get_reg(i_regs->regmap,AGEN1+(i&1)); |
2840 | assert(addr<0); |
2841 | offset=imm[i]; |
3968e69e |
2842 | reglist|=1<<temp; |
2843 | if(offset||s<0||c) addr=temp2; |
2844 | else addr=s; |
2845 | if(s>=0) { |
2846 | c=(i_regs->wasconst>>s)&1; |
2847 | if(c) { |
2848 | memtarget=((signed int)(constmap[i][s]+offset))<(signed int)0x80000000+RAM_SIZE; |
2849 | } |
2850 | } |
2851 | if(!c) { |
2852 | emit_shlimm(addr,3,temp); |
2853 | if (opcode[i]==0x22||opcode[i]==0x26) { |
2854 | emit_andimm(addr,0xFFFFFFFC,temp2); // LWL/LWR |
2855 | }else{ |
2856 | emit_andimm(addr,0xFFFFFFF8,temp2); // LDL/LDR |
2857 | } |
2858 | jaddr=emit_fastpath_cmp_jump(i,temp2,&fastio_reg_override); |
2859 | } |
2860 | else { |
2861 | if(ram_offset&&memtarget) { |
2862 | host_tempreg_acquire(); |
2863 | emit_addimm(temp2,ram_offset,HOST_TEMPREG); |
2864 | fastio_reg_override=HOST_TEMPREG; |
2865 | } |
2866 | if (opcode[i]==0x22||opcode[i]==0x26) { |
2867 | emit_movimm(((constmap[i][s]+offset)<<3)&24,temp); // LWL/LWR |
2868 | }else{ |
2869 | emit_movimm(((constmap[i][s]+offset)<<3)&56,temp); // LDL/LDR |
2870 | } |
2871 | } |
2872 | if (opcode[i]==0x22||opcode[i]==0x26) { // LWL/LWR |
2873 | if(!c||memtarget) { |
2874 | int a=temp2; |
2875 | if(fastio_reg_override>=0) a=fastio_reg_override; |
2876 | emit_readword_indexed(0,a,temp2); |
2877 | if(fastio_reg_override==HOST_TEMPREG) host_tempreg_release(); |
2878 | if(jaddr) add_stub_r(LOADW_STUB,jaddr,out,i,temp2,i_regs,ccadj[i],reglist); |
2879 | } |
2880 | else |
2881 | inline_readstub(LOADW_STUB,i,(constmap[i][s]+offset)&0xFFFFFFFC,i_regs->regmap,FTEMP,ccadj[i],reglist); |
2882 | if(rt1[i]) { |
2883 | assert(tl>=0); |
2884 | emit_andimm(temp,24,temp); |
2885 | if (opcode[i]==0x22) // LWL |
2886 | emit_xorimm(temp,24,temp); |
2887 | host_tempreg_acquire(); |
2888 | emit_movimm(-1,HOST_TEMPREG); |
2889 | if (opcode[i]==0x26) { |
2890 | emit_shr(temp2,temp,temp2); |
2891 | emit_bic_lsr(tl,HOST_TEMPREG,temp,tl); |
2892 | }else{ |
2893 | emit_shl(temp2,temp,temp2); |
2894 | emit_bic_lsl(tl,HOST_TEMPREG,temp,tl); |
2895 | } |
2896 | host_tempreg_release(); |
2897 | emit_or(temp2,tl,tl); |
2898 | } |
2899 | //emit_storereg(rt1[i],tl); // DEBUG |
2900 | } |
2901 | if (opcode[i]==0x1A||opcode[i]==0x1B) { // LDL/LDR |
2902 | assert(0); |
2903 | } |
57871462 |
2904 | } |
2905 | #endif |
2906 | |
81dbbf4c |
2907 | void store_assemble(int i, const struct regstat *i_regs) |
57871462 |
2908 | { |
9c45ca93 |
2909 | int s,tl; |
57871462 |
2910 | int addr,temp; |
2911 | int offset; |
b14b6a8f |
2912 | void *jaddr=0; |
2913 | enum stub_type type; |
666a299d |
2914 | int memtarget=0,c=0; |
57871462 |
2915 | int agr=AGEN1+(i&1); |
d1e4ebd9 |
2916 | int fastio_reg_override=-1; |
81dbbf4c |
2917 | u_int reglist=get_host_reglist(i_regs->regmap); |
57871462 |
2918 | tl=get_reg(i_regs->regmap,rs2[i]); |
2919 | s=get_reg(i_regs->regmap,rs1[i]); |
2920 | temp=get_reg(i_regs->regmap,agr); |
2921 | if(temp<0) temp=get_reg(i_regs->regmap,-1); |
2922 | offset=imm[i]; |
2923 | if(s>=0) { |
2924 | c=(i_regs->wasconst>>s)&1; |
af4ee1fe |
2925 | if(c) { |
2926 | memtarget=((signed int)(constmap[i][s]+offset))<(signed int)0x80000000+RAM_SIZE; |
af4ee1fe |
2927 | } |
57871462 |
2928 | } |
2929 | assert(tl>=0); |
2930 | assert(temp>=0); |
57871462 |
2931 | if(i_regs->regmap[HOST_CCREG]==CCREG) reglist&=~(1<<HOST_CCREG); |
2932 | if(offset||s<0||c) addr=temp; |
2933 | else addr=s; |
1edfcc68 |
2934 | if(!c) { |
d1e4ebd9 |
2935 | jaddr=emit_fastpath_cmp_jump(i,addr,&fastio_reg_override); |
1edfcc68 |
2936 | } |
2937 | else if(ram_offset&&memtarget) { |
d1e4ebd9 |
2938 | host_tempreg_acquire(); |
1edfcc68 |
2939 | emit_addimm(addr,ram_offset,HOST_TEMPREG); |
d1e4ebd9 |
2940 | fastio_reg_override=HOST_TEMPREG; |
57871462 |
2941 | } |
2942 | |
2943 | if (opcode[i]==0x28) { // SB |
2944 | if(!c||memtarget) { |
97a238a6 |
2945 | int x=0,a=temp; |
97a238a6 |
2946 | if(!c) a=addr; |
d1e4ebd9 |
2947 | if(fastio_reg_override>=0) a=fastio_reg_override; |
9c45ca93 |
2948 | emit_writebyte_indexed(tl,x,a); |
57871462 |
2949 | } |
2950 | type=STOREB_STUB; |
2951 | } |
2952 | if (opcode[i]==0x29) { // SH |
2953 | if(!c||memtarget) { |
97a238a6 |
2954 | int x=0,a=temp; |
97a238a6 |
2955 | if(!c) a=addr; |
d1e4ebd9 |
2956 | if(fastio_reg_override>=0) a=fastio_reg_override; |
9c45ca93 |
2957 | emit_writehword_indexed(tl,x,a); |
57871462 |
2958 | } |
2959 | type=STOREH_STUB; |
2960 | } |
2961 | if (opcode[i]==0x2B) { // SW |
dadf55f2 |
2962 | if(!c||memtarget) { |
2963 | int a=addr; |
d1e4ebd9 |
2964 | if(fastio_reg_override>=0) a=fastio_reg_override; |
9c45ca93 |
2965 | emit_writeword_indexed(tl,0,a); |
dadf55f2 |
2966 | } |
57871462 |
2967 | type=STOREW_STUB; |
2968 | } |
2969 | if (opcode[i]==0x3F) { // SD |
9c45ca93 |
2970 | assert(0); |
57871462 |
2971 | type=STORED_STUB; |
2972 | } |
d1e4ebd9 |
2973 | if(fastio_reg_override==HOST_TEMPREG) |
2974 | host_tempreg_release(); |
b96d3df7 |
2975 | if(jaddr) { |
2976 | // PCSX store handlers don't check invcode again |
2977 | reglist|=1<<addr; |
b14b6a8f |
2978 | add_stub_r(type,jaddr,out,i,addr,i_regs,ccadj[i],reglist); |
b96d3df7 |
2979 | jaddr=0; |
2980 | } |
d62c125a |
2981 | if(!(i_regs->waswritten&(1<<rs1[i])) && !HACK_ENABLED(NDHACK_NO_SMC_CHECK)) { |
57871462 |
2982 | if(!c||memtarget) { |
2983 | #ifdef DESTRUCTIVE_SHIFT |
2984 | // The x86 shift operation is 'destructive'; it overwrites the |
2985 | // source register, so we need to make a copy first and use that. |
2986 | addr=temp; |
2987 | #endif |
2988 | #if defined(HOST_IMM8) |
2989 | int ir=get_reg(i_regs->regmap,INVCP); |
2990 | assert(ir>=0); |
2991 | emit_cmpmem_indexedsr12_reg(ir,addr,1); |
2992 | #else |
643aeae3 |
2993 | emit_cmpmem_indexedsr12_imm(invalid_code,addr,1); |
57871462 |
2994 | #endif |
0bbd1454 |
2995 | #if defined(HAVE_CONDITIONAL_CALL) && !defined(DESTRUCTIVE_SHIFT) |
2996 | emit_callne(invalidate_addr_reg[addr]); |
2997 | #else |
b14b6a8f |
2998 | void *jaddr2 = out; |
57871462 |
2999 | emit_jne(0); |
b14b6a8f |
3000 | add_stub(INVCODE_STUB,jaddr2,out,reglist|(1<<HOST_CCREG),addr,0,0,0); |
0bbd1454 |
3001 | #endif |
57871462 |
3002 | } |
3003 | } |
7a518516 |
3004 | u_int addr_val=constmap[i][s]+offset; |
3eaa7048 |
3005 | if(jaddr) { |
b14b6a8f |
3006 | add_stub_r(type,jaddr,out,i,addr,i_regs,ccadj[i],reglist); |
3eaa7048 |
3007 | } else if(c&&!memtarget) { |
7a518516 |
3008 | inline_writestub(type,i,addr_val,i_regs->regmap,rs2[i],ccadj[i],reglist); |
3009 | } |
3010 | // basic current block modification detection.. |
3011 | // not looking back as that should be in mips cache already |
3968e69e |
3012 | // (see Spyro2 title->attract mode) |
7a518516 |
3013 | if(c&&start+i*4<addr_val&&addr_val<start+slen*4) { |
c43b5311 |
3014 | SysPrintf("write to %08x hits block %08x, pc=%08x\n",addr_val,start,start+i*4); |
7a518516 |
3015 | assert(i_regs->regmap==regs[i].regmap); // not delay slot |
3016 | if(i_regs->regmap==regs[i].regmap) { |
ad49de89 |
3017 | load_all_consts(regs[i].regmap_entry,regs[i].wasdirty,i); |
3018 | wb_dirtys(regs[i].regmap_entry,regs[i].wasdirty); |
7a518516 |
3019 | emit_movimm(start+i*4+4,0); |
643aeae3 |
3020 | emit_writeword(0,&pcaddr); |
d1e4ebd9 |
3021 | emit_addimm(HOST_CCREG,2,HOST_CCREG); |
2a014d73 |
3022 | emit_far_call(get_addr_ht); |
d1e4ebd9 |
3023 | emit_jmpreg(0); |
7a518516 |
3024 | } |
3eaa7048 |
3025 | } |
57871462 |
3026 | } |
3027 | |
81dbbf4c |
3028 | static void storelr_assemble(int i, const struct regstat *i_regs) |
57871462 |
3029 | { |
9c45ca93 |
3030 | int s,tl; |
57871462 |
3031 | int temp; |
57871462 |
3032 | int offset; |
b14b6a8f |
3033 | void *jaddr=0; |
df4dc2b1 |
3034 | void *case1, *case2, *case3; |
3035 | void *done0, *done1, *done2; |
af4ee1fe |
3036 | int memtarget=0,c=0; |
fab5d06d |
3037 | int agr=AGEN1+(i&1); |
81dbbf4c |
3038 | u_int reglist=get_host_reglist(i_regs->regmap); |
57871462 |
3039 | tl=get_reg(i_regs->regmap,rs2[i]); |
3040 | s=get_reg(i_regs->regmap,rs1[i]); |
fab5d06d |
3041 | temp=get_reg(i_regs->regmap,agr); |
3042 | if(temp<0) temp=get_reg(i_regs->regmap,-1); |
57871462 |
3043 | offset=imm[i]; |
3044 | if(s>=0) { |
3045 | c=(i_regs->isconst>>s)&1; |
af4ee1fe |
3046 | if(c) { |
3047 | memtarget=((signed int)(constmap[i][s]+offset))<(signed int)0x80000000+RAM_SIZE; |
af4ee1fe |
3048 | } |
57871462 |
3049 | } |
3050 | assert(tl>=0); |
535d208a |
3051 | assert(temp>=0); |
1edfcc68 |
3052 | if(!c) { |
3053 | emit_cmpimm(s<0||offset?temp:s,RAM_SIZE); |
3054 | if(!offset&&s!=temp) emit_mov(s,temp); |
b14b6a8f |
3055 | jaddr=out; |
1edfcc68 |
3056 | emit_jno(0); |
3057 | } |
3058 | else |
3059 | { |
3060 | if(!memtarget||!rs1[i]) { |
b14b6a8f |
3061 | jaddr=out; |
535d208a |
3062 | emit_jmp(0); |
57871462 |
3063 | } |
535d208a |
3064 | } |
3968e69e |
3065 | if(ram_offset) |
3066 | emit_addimm_no_flags(ram_offset,temp); |
535d208a |
3067 | |
3068 | if (opcode[i]==0x2C||opcode[i]==0x2D) { // SDL/SDR |
9c45ca93 |
3069 | assert(0); |
535d208a |
3070 | } |
57871462 |
3071 | |
9c45ca93 |
3072 | emit_xorimm(temp,3,temp); |
535d208a |
3073 | emit_testimm(temp,2); |
df4dc2b1 |
3074 | case2=out; |
535d208a |
3075 | emit_jne(0); |
3076 | emit_testimm(temp,1); |
df4dc2b1 |
3077 | case1=out; |
535d208a |
3078 | emit_jne(0); |
3079 | // 0 |
3080 | if (opcode[i]==0x2A) { // SWL |
3081 | emit_writeword_indexed(tl,0,temp); |
3082 | } |
3968e69e |
3083 | else if (opcode[i]==0x2E) { // SWR |
535d208a |
3084 | emit_writebyte_indexed(tl,3,temp); |
3085 | } |
3968e69e |
3086 | else |
9c45ca93 |
3087 | assert(0); |
df4dc2b1 |
3088 | done0=out; |
535d208a |
3089 | emit_jmp(0); |
3090 | // 1 |
df4dc2b1 |
3091 | set_jump_target(case1, out); |
535d208a |
3092 | if (opcode[i]==0x2A) { // SWL |
3093 | // Write 3 msb into three least significant bytes |
3094 | if(rs2[i]) emit_rorimm(tl,8,tl); |
3095 | emit_writehword_indexed(tl,-1,temp); |
3096 | if(rs2[i]) emit_rorimm(tl,16,tl); |
3097 | emit_writebyte_indexed(tl,1,temp); |
3098 | if(rs2[i]) emit_rorimm(tl,8,tl); |
3099 | } |
3968e69e |
3100 | else if (opcode[i]==0x2E) { // SWR |
535d208a |
3101 | // Write two lsb into two most significant bytes |
3102 | emit_writehword_indexed(tl,1,temp); |
3103 | } |
df4dc2b1 |
3104 | done1=out; |
535d208a |
3105 | emit_jmp(0); |
3106 | // 2 |
df4dc2b1 |
3107 | set_jump_target(case2, out); |
535d208a |
3108 | emit_testimm(temp,1); |
df4dc2b1 |
3109 | case3=out; |
535d208a |
3110 | emit_jne(0); |
3111 | if (opcode[i]==0x2A) { // SWL |
3112 | // Write two msb into two least significant bytes |
3113 | if(rs2[i]) emit_rorimm(tl,16,tl); |
3114 | emit_writehword_indexed(tl,-2,temp); |
3115 | if(rs2[i]) emit_rorimm(tl,16,tl); |
3116 | } |
3968e69e |
3117 | else if (opcode[i]==0x2E) { // SWR |
535d208a |
3118 | // Write 3 lsb into three most significant bytes |
3119 | emit_writebyte_indexed(tl,-1,temp); |
3120 | if(rs2[i]) emit_rorimm(tl,8,tl); |
3121 | emit_writehword_indexed(tl,0,temp); |
3122 | if(rs2[i]) emit_rorimm(tl,24,tl); |
3123 | } |
df4dc2b1 |
3124 | done2=out; |
535d208a |
3125 | emit_jmp(0); |
3126 | // 3 |
df4dc2b1 |
3127 | set_jump_target(case3, out); |
535d208a |
3128 | if (opcode[i]==0x2A) { // SWL |
3129 | // Write msb into least significant byte |
3130 | if(rs2[i]) emit_rorimm(tl,24,tl); |
3131 | emit_writebyte_indexed(tl,-3,temp); |
3132 | if(rs2[i]) emit_rorimm(tl,8,tl); |
3133 | } |
3968e69e |
3134 | else if (opcode[i]==0x2E) { // SWR |
535d208a |
3135 | // Write entire word |
3136 | emit_writeword_indexed(tl,-3,temp); |
3137 | } |
df4dc2b1 |
3138 | set_jump_target(done0, out); |
3139 | set_jump_target(done1, out); |
3140 | set_jump_target(done2, out); |
535d208a |
3141 | if(!c||!memtarget) |
b14b6a8f |
3142 | add_stub_r(STORELR_STUB,jaddr,out,i,temp,i_regs,ccadj[i],reglist); |
d62c125a |
3143 | if(!(i_regs->waswritten&(1<<rs1[i])) && !HACK_ENABLED(NDHACK_NO_SMC_CHECK)) { |
9c45ca93 |
3144 | emit_addimm_no_flags(-ram_offset,temp); |
57871462 |
3145 | #if defined(HOST_IMM8) |
3146 | int ir=get_reg(i_regs->regmap,INVCP); |
3147 | assert(ir>=0); |
3148 | emit_cmpmem_indexedsr12_reg(ir,temp,1); |
3149 | #else |
643aeae3 |
3150 | emit_cmpmem_indexedsr12_imm(invalid_code,temp,1); |
57871462 |
3151 | #endif |
535d208a |
3152 | #if defined(HAVE_CONDITIONAL_CALL) && !defined(DESTRUCTIVE_SHIFT) |
3153 | emit_callne(invalidate_addr_reg[temp]); |
3154 | #else |
b14b6a8f |
3155 | void *jaddr2 = out; |
57871462 |
3156 | emit_jne(0); |
b14b6a8f |
3157 | add_stub(INVCODE_STUB,jaddr2,out,reglist|(1<<HOST_CCREG),temp,0,0,0); |
535d208a |
3158 | #endif |
57871462 |
3159 | } |
57871462 |
3160 | } |
3161 | |
8062d65a |
3162 | static void cop0_assemble(int i,struct regstat *i_regs) |
3163 | { |
3164 | if(opcode2[i]==0) // MFC0 |
3165 | { |
3166 | signed char t=get_reg(i_regs->regmap,rt1[i]); |
3167 | u_int copr=(source[i]>>11)&0x1f; |
3168 | //assert(t>=0); // Why does this happen? OOT is weird |
3169 | if(t>=0&&rt1[i]!=0) { |
3170 | emit_readword(®_cop0[copr],t); |
3171 | } |
3172 | } |
3173 | else if(opcode2[i]==4) // MTC0 |
3174 | { |
3175 | signed char s=get_reg(i_regs->regmap,rs1[i]); |
3176 | char copr=(source[i]>>11)&0x1f; |
3177 | assert(s>=0); |
3178 | wb_register(rs1[i],i_regs->regmap,i_regs->dirty); |
3179 | if(copr==9||copr==11||copr==12||copr==13) { |
3180 | emit_readword(&last_count,HOST_TEMPREG); |
3181 | emit_loadreg(CCREG,HOST_CCREG); // TODO: do proper reg alloc |
3182 | emit_add(HOST_CCREG,HOST_TEMPREG,HOST_CCREG); |
3183 | emit_addimm(HOST_CCREG,CLOCK_ADJUST(ccadj[i]),HOST_CCREG); |
3184 | emit_writeword(HOST_CCREG,&Count); |
3185 | } |
3186 | // What a mess. The status register (12) can enable interrupts, |
3187 | // so needs a special case to handle a pending interrupt. |
3188 | // The interrupt must be taken immediately, because a subsequent |
3189 | // instruction might disable interrupts again. |
3190 | if(copr==12||copr==13) { |
3191 | if (is_delayslot) { |
3192 | // burn cycles to cause cc_interrupt, which will |
3193 | // reschedule next_interupt. Relies on CCREG from above. |
3194 | assem_debug("MTC0 DS %d\n", copr); |
3195 | emit_writeword(HOST_CCREG,&last_count); |
3196 | emit_movimm(0,HOST_CCREG); |
3197 | emit_storereg(CCREG,HOST_CCREG); |
3198 | emit_loadreg(rs1[i],1); |
3199 | emit_movimm(copr,0); |
2a014d73 |
3200 | emit_far_call(pcsx_mtc0_ds); |
8062d65a |
3201 | emit_loadreg(rs1[i],s); |
3202 | return; |
3203 | } |
3204 | emit_movimm(start+i*4+4,HOST_TEMPREG); |
3205 | emit_writeword(HOST_TEMPREG,&pcaddr); |
3206 | emit_movimm(0,HOST_TEMPREG); |
3207 | emit_writeword(HOST_TEMPREG,&pending_exception); |
3208 | } |
8062d65a |
3209 | if(s==HOST_CCREG) |
3210 | emit_loadreg(rs1[i],1); |
3211 | else if(s!=1) |
3212 | emit_mov(s,1); |
3213 | emit_movimm(copr,0); |
2a014d73 |
3214 | emit_far_call(pcsx_mtc0); |
8062d65a |
3215 | if(copr==9||copr==11||copr==12||copr==13) { |
3216 | emit_readword(&Count,HOST_CCREG); |
3217 | emit_readword(&next_interupt,HOST_TEMPREG); |
3218 | emit_addimm(HOST_CCREG,-CLOCK_ADJUST(ccadj[i]),HOST_CCREG); |
3219 | emit_sub(HOST_CCREG,HOST_TEMPREG,HOST_CCREG); |
3220 | emit_writeword(HOST_TEMPREG,&last_count); |
3221 | emit_storereg(CCREG,HOST_CCREG); |
3222 | } |
3223 | if(copr==12||copr==13) { |
3224 | assert(!is_delayslot); |
3225 | emit_readword(&pending_exception,14); |
3226 | emit_test(14,14); |
d1e4ebd9 |
3227 | void *jaddr = out; |
3228 | emit_jeq(0); |
3229 | emit_readword(&pcaddr, 0); |
3230 | emit_addimm(HOST_CCREG,2,HOST_CCREG); |
2a014d73 |
3231 | emit_far_call(get_addr_ht); |
d1e4ebd9 |
3232 | emit_jmpreg(0); |
3233 | set_jump_target(jaddr, out); |
8062d65a |
3234 | } |
3235 | emit_loadreg(rs1[i],s); |
8062d65a |
3236 | } |
3237 | else |
3238 | { |
3239 | assert(opcode2[i]==0x10); |
3240 | //if((source[i]&0x3f)==0x10) // RFE |
3241 | { |
3242 | emit_readword(&Status,0); |
3243 | emit_andimm(0,0x3c,1); |
3244 | emit_andimm(0,~0xf,0); |
3245 | emit_orrshr_imm(1,2,0); |
3246 | emit_writeword(0,&Status); |
3247 | } |
3248 | } |
3249 | } |
3250 | |
3251 | static void cop1_unusable(int i,struct regstat *i_regs) |
3252 | { |
3253 | // XXX: should just just do the exception instead |
3254 | //if(!cop1_usable) |
3255 | { |
3256 | void *jaddr=out; |
3257 | emit_jmp(0); |
3258 | add_stub_r(FP_STUB,jaddr,out,i,0,i_regs,is_delayslot,0); |
3259 | } |
3260 | } |
3261 | |
3262 | static void cop1_assemble(int i,struct regstat *i_regs) |
3263 | { |
3264 | cop1_unusable(i, i_regs); |
3265 | } |
3266 | |
3267 | static void c1ls_assemble(int i,struct regstat *i_regs) |
57871462 |
3268 | { |
3d624f89 |
3269 | cop1_unusable(i, i_regs); |
57871462 |
3270 | } |
3271 | |
8062d65a |
3272 | // FP_STUB |
3273 | static void do_cop1stub(int n) |
3274 | { |
3275 | literal_pool(256); |
3276 | assem_debug("do_cop1stub %x\n",start+stubs[n].a*4); |
3277 | set_jump_target(stubs[n].addr, out); |
3278 | int i=stubs[n].a; |
3279 | // int rs=stubs[n].b; |
3280 | struct regstat *i_regs=(struct regstat *)stubs[n].c; |
3281 | int ds=stubs[n].d; |
3282 | if(!ds) { |
3283 | load_all_consts(regs[i].regmap_entry,regs[i].wasdirty,i); |
3284 | //if(i_regs!=®s[i]) printf("oops: regs[i]=%x i_regs=%x",(int)®s[i],(int)i_regs); |
3285 | } |
3286 | //else {printf("fp exception in delay slot\n");} |
3287 | wb_dirtys(i_regs->regmap_entry,i_regs->wasdirty); |
3288 | if(regs[i].regmap_entry[HOST_CCREG]!=CCREG) emit_loadreg(CCREG,HOST_CCREG); |
3289 | emit_movimm(start+(i-ds)*4,EAX); // Get PC |
3290 | emit_addimm(HOST_CCREG,CLOCK_ADJUST(ccadj[i]),HOST_CCREG); // CHECK: is this right? There should probably be an extra cycle... |
2a014d73 |
3291 | emit_far_jump(ds?fp_exception_ds:fp_exception); |
8062d65a |
3292 | } |
3293 | |
e3c6bdb5 |
3294 | static int cop2_is_stalling_op(int i, int *cycles) |
3295 | { |
3296 | if (opcode[i] == 0x3a) { // SWC2 |
3297 | *cycles = 0; |
3298 | return 1; |
3299 | } |
3300 | if (itype[i] == COP2 && (opcode2[i] == 0 || opcode2[i] == 2)) { // MFC2/CFC2 |
3301 | *cycles = 0; |
3302 | return 1; |
3303 | } |
3304 | if (itype[i] == C2OP) { |
3305 | *cycles = gte_cycletab[source[i] & 0x3f]; |
3306 | return 1; |
3307 | } |
3308 | // ... what about MTC2/CTC2/LWC2? |
3309 | return 0; |
3310 | } |
3311 | |
3312 | #if 0 |
3313 | static void log_gte_stall(int stall, u_int cycle) |
3314 | { |
3315 | if ((u_int)stall <= 44) |
3316 | printf("x stall %2d %u\n", stall, cycle + last_count); |
3317 | if (cycle + last_count > 1215348544) exit(1); |
3318 | } |
3319 | |
3320 | static void emit_log_gte_stall(int i, int stall, u_int reglist) |
3321 | { |
3322 | save_regs(reglist); |
3323 | if (stall > 0) |
3324 | emit_movimm(stall, 0); |
3325 | else |
3326 | emit_mov(HOST_TEMPREG, 0); |
3327 | emit_addimm(HOST_CCREG, CLOCK_ADJUST(ccadj[i]), 1); |
3328 | emit_far_call(log_gte_stall); |
3329 | restore_regs(reglist); |
3330 | } |
3331 | #endif |
3332 | |
81dbbf4c |
3333 | static void cop2_call_stall_check(u_int op, int i, const struct regstat *i_regs, u_int reglist) |
3334 | { |
e3c6bdb5 |
3335 | int j = i, other_gte_op_cycles = -1, stall = -MAXBLOCK, cycles_passed; |
3336 | int rtmp = reglist_find_free(reglist); |
3337 | |
81dbbf4c |
3338 | if (HACK_ENABLED(NDHACK_GTE_NO_STALL)) |
3339 | return; |
3340 | //assert(get_reg(i_regs->regmap, CCREG) == HOST_CCREG); |
3341 | if (get_reg(i_regs->regmap, CCREG) != HOST_CCREG) { |
3342 | // happens occasionally... cc evicted? Don't bother then |
3343 | //printf("no cc %08x\n", start + i*4); |
3344 | return; |
3345 | } |
e3c6bdb5 |
3346 | if (!bt[i]) { |
3347 | for (j = i - 1; j >= 0; j--) { |
3348 | //if (is_ds[j]) break; |
3349 | if (cop2_is_stalling_op(j, &other_gte_op_cycles) || bt[j]) |
3350 | break; |
3351 | } |
3352 | } |
3353 | cycles_passed = CLOCK_ADJUST(ccadj[i] - ccadj[j]); |
3354 | if (other_gte_op_cycles >= 0) |
3355 | stall = other_gte_op_cycles - cycles_passed; |
3356 | else if (cycles_passed >= 44) |
3357 | stall = 0; // can't stall |
3358 | if (stall == -MAXBLOCK && rtmp >= 0) { |
3359 | // unknown stall, do the expensive runtime check |
3360 | assem_debug("; cop2_call_stall_check\n"); |
3361 | #if 0 // too slow |
3362 | save_regs(reglist); |
3363 | emit_movimm(gte_cycletab[op], 0); |
3364 | emit_addimm(HOST_CCREG, CLOCK_ADJUST(ccadj[i]), 1); |
3365 | emit_far_call(call_gteStall); |
3366 | restore_regs(reglist); |
3367 | #else |
3368 | host_tempreg_acquire(); |
3369 | emit_readword(&psxRegs.gteBusyCycle, rtmp); |
3370 | emit_addimm(rtmp, -CLOCK_ADJUST(ccadj[i]), rtmp); |
3371 | emit_sub(rtmp, HOST_CCREG, HOST_TEMPREG); |
3372 | emit_cmpimm(HOST_TEMPREG, 44); |
3373 | emit_cmovb_reg(rtmp, HOST_CCREG); |
3374 | //emit_log_gte_stall(i, 0, reglist); |
3375 | host_tempreg_release(); |
3376 | #endif |
3377 | } |
3378 | else if (stall > 0) { |
3379 | //emit_log_gte_stall(i, stall, reglist); |
3380 | emit_addimm(HOST_CCREG, stall, HOST_CCREG); |
3381 | } |
3382 | |
3383 | // save gteBusyCycle, if needed |
3384 | if (gte_cycletab[op] == 0) |
3385 | return; |
3386 | other_gte_op_cycles = -1; |
3387 | for (j = i + 1; j < slen; j++) { |
3388 | if (cop2_is_stalling_op(j, &other_gte_op_cycles)) |
3389 | break; |
3390 | if (is_jump(j)) { |
3391 | // check ds |
3392 | if (j + 1 < slen && cop2_is_stalling_op(j + 1, &other_gte_op_cycles)) |
3393 | j++; |
3394 | break; |
3395 | } |
3396 | } |
3397 | if (other_gte_op_cycles >= 0) |
3398 | // will handle stall when assembling that op |
3399 | return; |
3400 | cycles_passed = CLOCK_ADJUST(ccadj[min(j, slen -1)] - ccadj[i]); |
3401 | if (cycles_passed >= 44) |
3402 | return; |
3403 | assem_debug("; save gteBusyCycle\n"); |
3404 | host_tempreg_acquire(); |
3405 | #if 0 |
3406 | emit_readword(&last_count, HOST_TEMPREG); |
3407 | emit_add(HOST_TEMPREG, HOST_CCREG, HOST_TEMPREG); |
3408 | emit_addimm(HOST_TEMPREG, CLOCK_ADJUST(ccadj[i]), HOST_TEMPREG); |
3409 | emit_addimm(HOST_TEMPREG, gte_cycletab[op]), HOST_TEMPREG); |
3410 | emit_writeword(HOST_TEMPREG, &psxRegs.gteBusyCycle); |
3411 | #else |
3412 | emit_addimm(HOST_CCREG, CLOCK_ADJUST(ccadj[i]) + gte_cycletab[op], HOST_TEMPREG); |
3413 | emit_writeword(HOST_TEMPREG, &psxRegs.gteBusyCycle); |
3414 | #endif |
3415 | host_tempreg_release(); |
81dbbf4c |
3416 | } |
3417 | |
8062d65a |
3418 | static void cop2_get_dreg(u_int copr,signed char tl,signed char temp) |
3419 | { |
3420 | switch (copr) { |
3421 | case 1: |
3422 | case 3: |
3423 | case 5: |
3424 | case 8: |
3425 | case 9: |
3426 | case 10: |
3427 | case 11: |
3428 | emit_readword(®_cop2d[copr],tl); |
3429 | emit_signextend16(tl,tl); |
3430 | emit_writeword(tl,®_cop2d[copr]); // hmh |
3431 | break; |
3432 | case 7: |
3433 | case 16: |
3434 | case 17: |
3435 | case 18: |
3436 | case 19: |
3437 | emit_readword(®_cop2d[copr],tl); |
3438 | emit_andimm(tl,0xffff,tl); |
3439 | emit_writeword(tl,®_cop2d[copr]); |
3440 | break; |
3441 | case 15: |
3442 | emit_readword(®_cop2d[14],tl); // SXY2 |
3443 | emit_writeword(tl,®_cop2d[copr]); |
3444 | break; |
3445 | case 28: |
3446 | case 29: |
3968e69e |
3447 | c2op_mfc2_29_assemble(tl,temp); |
8062d65a |
3448 | break; |
3449 | default: |
3450 | emit_readword(®_cop2d[copr],tl); |
3451 | break; |
3452 | } |
3453 | } |
3454 | |
3455 | static void cop2_put_dreg(u_int copr,signed char sl,signed char temp) |
3456 | { |
3457 | switch (copr) { |
3458 | case 15: |
3459 | emit_readword(®_cop2d[13],temp); // SXY1 |
3460 | emit_writeword(sl,®_cop2d[copr]); |
3461 | emit_writeword(temp,®_cop2d[12]); // SXY0 |
3462 | emit_readword(®_cop2d[14],temp); // SXY2 |
3463 | emit_writeword(sl,®_cop2d[14]); |
3464 | emit_writeword(temp,®_cop2d[13]); // SXY1 |
3465 | break; |
3466 | case 28: |
3467 | emit_andimm(sl,0x001f,temp); |
3468 | emit_shlimm(temp,7,temp); |
3469 | emit_writeword(temp,®_cop2d[9]); |
3470 | emit_andimm(sl,0x03e0,temp); |
3471 | emit_shlimm(temp,2,temp); |
3472 | emit_writeword(temp,®_cop2d[10]); |
3473 | emit_andimm(sl,0x7c00,temp); |
3474 | emit_shrimm(temp,3,temp); |
3475 | emit_writeword(temp,®_cop2d[11]); |
3476 | emit_writeword(sl,®_cop2d[28]); |
3477 | break; |
3478 | case 30: |
3968e69e |
3479 | emit_xorsar_imm(sl,sl,31,temp); |
be516ebe |
3480 | #if defined(HAVE_ARMV5) || defined(__aarch64__) |
8062d65a |
3481 | emit_clz(temp,temp); |
3482 | #else |
3483 | emit_movs(temp,HOST_TEMPREG); |
3484 | emit_movimm(0,temp); |
3485 | emit_jeq((int)out+4*4); |
3486 | emit_addpl_imm(temp,1,temp); |
3487 | emit_lslpls_imm(HOST_TEMPREG,1,HOST_TEMPREG); |
3488 | emit_jns((int)out-2*4); |
3489 | #endif |
3490 | emit_writeword(sl,®_cop2d[30]); |
3491 | emit_writeword(temp,®_cop2d[31]); |
3492 | break; |
3493 | case 31: |
3494 | break; |
3495 | default: |
3496 | emit_writeword(sl,®_cop2d[copr]); |
3497 | break; |
3498 | } |
3499 | } |
3500 | |
81dbbf4c |
3501 | static void c2ls_assemble(int i, const struct regstat *i_regs) |
b9b61529 |
3502 | { |
3503 | int s,tl; |
3504 | int ar; |
3505 | int offset; |
1fd1aceb |
3506 | int memtarget=0,c=0; |
b14b6a8f |
3507 | void *jaddr2=NULL; |
3508 | enum stub_type type; |
b9b61529 |
3509 | int agr=AGEN1+(i&1); |
d1e4ebd9 |
3510 | int fastio_reg_override=-1; |
81dbbf4c |
3511 | u_int reglist=get_host_reglist(i_regs->regmap); |
b9b61529 |
3512 | u_int copr=(source[i]>>16)&0x1f; |
3513 | s=get_reg(i_regs->regmap,rs1[i]); |
3514 | tl=get_reg(i_regs->regmap,FTEMP); |
3515 | offset=imm[i]; |
3516 | assert(rs1[i]>0); |
3517 | assert(tl>=0); |
b9b61529 |
3518 | |
b9b61529 |
3519 | if(i_regs->regmap[HOST_CCREG]==CCREG) |
3520 | reglist&=~(1<<HOST_CCREG); |
3521 | |
3522 | // get the address |
3523 | if (opcode[i]==0x3a) { // SWC2 |
3524 | ar=get_reg(i_regs->regmap,agr); |
3525 | if(ar<0) ar=get_reg(i_regs->regmap,-1); |
3526 | reglist|=1<<ar; |
3527 | } else { // LWC2 |
3528 | ar=tl; |
3529 | } |
1fd1aceb |
3530 | if(s>=0) c=(i_regs->wasconst>>s)&1; |
3531 | memtarget=c&&(((signed int)(constmap[i][s]+offset))<(signed int)0x80000000+RAM_SIZE); |
b9b61529 |
3532 | if (!offset&&!c&&s>=0) ar=s; |
3533 | assert(ar>=0); |
3534 | |
3535 | if (opcode[i]==0x3a) { // SWC2 |
81dbbf4c |
3536 | cop2_call_stall_check(0, i, i_regs, reglist_exclude(reglist, tl, -1)); |
3968e69e |
3537 | cop2_get_dreg(copr,tl,-1); |
1fd1aceb |
3538 | type=STOREW_STUB; |
b9b61529 |
3539 | } |
1fd1aceb |
3540 | else |
b9b61529 |
3541 | type=LOADW_STUB; |
1fd1aceb |
3542 | |
3543 | if(c&&!memtarget) { |
b14b6a8f |
3544 | jaddr2=out; |
1fd1aceb |
3545 | emit_jmp(0); // inline_readstub/inline_writestub? |
b9b61529 |
3546 | } |
1fd1aceb |
3547 | else { |
3548 | if(!c) { |
ffb0b9e0 |
3549 | jaddr2=emit_fastpath_cmp_jump(i,ar,&fastio_reg_override); |
1fd1aceb |
3550 | } |
a327ad27 |
3551 | else if(ram_offset&&memtarget) { |
d1e4ebd9 |
3552 | host_tempreg_acquire(); |
a327ad27 |
3553 | emit_addimm(ar,ram_offset,HOST_TEMPREG); |
3554 | fastio_reg_override=HOST_TEMPREG; |
3555 | } |
1fd1aceb |
3556 | if (opcode[i]==0x32) { // LWC2 |
ffb0b9e0 |
3557 | int a=ar; |
d1e4ebd9 |
3558 | if(fastio_reg_override>=0) a=fastio_reg_override; |
ffb0b9e0 |
3559 | emit_readword_indexed(0,a,tl); |
1fd1aceb |
3560 | } |
3561 | if (opcode[i]==0x3a) { // SWC2 |
3562 | #ifdef DESTRUCTIVE_SHIFT |
3563 | if(!offset&&!c&&s>=0) emit_mov(s,ar); |
3564 | #endif |
ffb0b9e0 |
3565 | int a=ar; |
d1e4ebd9 |
3566 | if(fastio_reg_override>=0) a=fastio_reg_override; |
ffb0b9e0 |
3567 | emit_writeword_indexed(tl,0,a); |
1fd1aceb |
3568 | } |
b9b61529 |
3569 | } |
d1e4ebd9 |
3570 | if(fastio_reg_override==HOST_TEMPREG) |
3571 | host_tempreg_release(); |
b9b61529 |
3572 | if(jaddr2) |
b14b6a8f |
3573 | add_stub_r(type,jaddr2,out,i,ar,i_regs,ccadj[i],reglist); |
0ff8c62c |
3574 | if(opcode[i]==0x3a) // SWC2 |
d62c125a |
3575 | if(!(i_regs->waswritten&(1<<rs1[i])) && !HACK_ENABLED(NDHACK_NO_SMC_CHECK)) { |
b9b61529 |
3576 | #if defined(HOST_IMM8) |
3577 | int ir=get_reg(i_regs->regmap,INVCP); |
3578 | assert(ir>=0); |
3579 | emit_cmpmem_indexedsr12_reg(ir,ar,1); |
3580 | #else |
643aeae3 |
3581 | emit_cmpmem_indexedsr12_imm(invalid_code,ar,1); |
b9b61529 |
3582 | #endif |
0bbd1454 |
3583 | #if defined(HAVE_CONDITIONAL_CALL) && !defined(DESTRUCTIVE_SHIFT) |
3584 | emit_callne(invalidate_addr_reg[ar]); |
3585 | #else |
b14b6a8f |
3586 | void *jaddr3 = out; |
b9b61529 |
3587 | emit_jne(0); |
b14b6a8f |
3588 | add_stub(INVCODE_STUB,jaddr3,out,reglist|(1<<HOST_CCREG),ar,0,0,0); |
0bbd1454 |
3589 | #endif |
b9b61529 |
3590 | } |
3591 | if (opcode[i]==0x32) { // LWC2 |
d1e4ebd9 |
3592 | host_tempreg_acquire(); |
b9b61529 |
3593 | cop2_put_dreg(copr,tl,HOST_TEMPREG); |
d1e4ebd9 |
3594 | host_tempreg_release(); |
b9b61529 |
3595 | } |
3596 | } |
3597 | |
81dbbf4c |
3598 | static void cop2_assemble(int i, const struct regstat *i_regs) |
8062d65a |
3599 | { |
81dbbf4c |
3600 | u_int copr = (source[i]>>11) & 0x1f; |
3601 | signed char temp = get_reg(i_regs->regmap, -1); |
3602 | |
3603 | if (opcode2[i] == 0 || opcode2[i] == 2) { // MFC2/CFC2 |
3604 | if (!HACK_ENABLED(NDHACK_GTE_NO_STALL)) { |
3605 | signed char tl = get_reg(i_regs->regmap, rt1[i]); |
3606 | u_int reglist = reglist_exclude(get_host_reglist(i_regs->regmap), tl, temp); |
3607 | cop2_call_stall_check(0, i, i_regs, reglist); |
3608 | } |
3609 | } |
8062d65a |
3610 | if (opcode2[i]==0) { // MFC2 |
3611 | signed char tl=get_reg(i_regs->regmap,rt1[i]); |
3612 | if(tl>=0&&rt1[i]!=0) |
3613 | cop2_get_dreg(copr,tl,temp); |
3614 | } |
3615 | else if (opcode2[i]==4) { // MTC2 |
3616 | signed char sl=get_reg(i_regs->regmap,rs1[i]); |
3617 | cop2_put_dreg(copr,sl,temp); |
3618 | } |
3619 | else if (opcode2[i]==2) // CFC2 |
3620 | { |
3621 | signed char tl=get_reg(i_regs->regmap,rt1[i]); |
3622 | if(tl>=0&&rt1[i]!=0) |
3623 | emit_readword(®_cop2c[copr],tl); |
3624 | } |
3625 | else if (opcode2[i]==6) // CTC2 |
3626 | { |
3627 | signed char sl=get_reg(i_regs->regmap,rs1[i]); |
3628 | switch(copr) { |
3629 | case 4: |
3630 | case 12: |
3631 | case 20: |
3632 | case 26: |
3633 | case 27: |
3634 | case 29: |
3635 | case 30: |
3636 | emit_signextend16(sl,temp); |
3637 | break; |
3638 | case 31: |
3968e69e |
3639 | c2op_ctc2_31_assemble(sl,temp); |
8062d65a |
3640 | break; |
3641 | default: |
3642 | temp=sl; |
3643 | break; |
3644 | } |
3645 | emit_writeword(temp,®_cop2c[copr]); |
3646 | assert(sl>=0); |
3647 | } |
3648 | } |
3649 | |
3968e69e |
3650 | static void do_unalignedwritestub(int n) |
3651 | { |
3652 | assem_debug("do_unalignedwritestub %x\n",start+stubs[n].a*4); |
3653 | literal_pool(256); |
3654 | set_jump_target(stubs[n].addr, out); |
3655 | |
3656 | int i=stubs[n].a; |
3657 | struct regstat *i_regs=(struct regstat *)stubs[n].c; |
3658 | int addr=stubs[n].b; |
3659 | u_int reglist=stubs[n].e; |
3660 | signed char *i_regmap=i_regs->regmap; |
3661 | int temp2=get_reg(i_regmap,FTEMP); |
3662 | int rt; |
3663 | rt=get_reg(i_regmap,rs2[i]); |
3664 | assert(rt>=0); |
3665 | assert(addr>=0); |
3666 | assert(opcode[i]==0x2a||opcode[i]==0x2e); // SWL/SWR only implemented |
3667 | reglist|=(1<<addr); |
3668 | reglist&=~(1<<temp2); |
3669 | |
3670 | #if 1 |
3671 | // don't bother with it and call write handler |
3672 | save_regs(reglist); |
3673 | pass_args(addr,rt); |
3674 | int cc=get_reg(i_regmap,CCREG); |
3675 | if(cc<0) |
3676 | emit_loadreg(CCREG,2); |
3677 | emit_addimm(cc<0?2:cc,CLOCK_ADJUST((int)stubs[n].d+1),2); |
2a014d73 |
3678 | emit_far_call((opcode[i]==0x2a?jump_handle_swl:jump_handle_swr)); |
3968e69e |
3679 | emit_addimm(0,-CLOCK_ADJUST((int)stubs[n].d+1),cc<0?2:cc); |
3680 | if(cc<0) |
3681 | emit_storereg(CCREG,2); |
3682 | restore_regs(reglist); |
3683 | emit_jmp(stubs[n].retaddr); // return address |
3684 | #else |
3685 | emit_andimm(addr,0xfffffffc,temp2); |
3686 | emit_writeword(temp2,&address); |
3687 | |
3688 | save_regs(reglist); |
3689 | emit_shrimm(addr,16,1); |
3690 | int cc=get_reg(i_regmap,CCREG); |
3691 | if(cc<0) { |
3692 | emit_loadreg(CCREG,2); |
3693 | } |
3694 | emit_movimm((u_int)readmem,0); |
3695 | emit_addimm(cc<0?2:cc,2*stubs[n].d+2,2); |
3696 | emit_call((int)&indirect_jump_indexed); |
3697 | restore_regs(reglist); |
3698 | |
3699 | emit_readword(&readmem_dword,temp2); |
3700 | int temp=addr; //hmh |
3701 | emit_shlimm(addr,3,temp); |
3702 | emit_andimm(temp,24,temp); |
3703 | if (opcode[i]==0x2a) // SWL |
3704 | emit_xorimm(temp,24,temp); |
3705 | emit_movimm(-1,HOST_TEMPREG); |
3706 | if (opcode[i]==0x2a) { // SWL |
3707 | emit_bic_lsr(temp2,HOST_TEMPREG,temp,temp2); |
3708 | emit_orrshr(rt,temp,temp2); |
3709 | }else{ |
3710 | emit_bic_lsl(temp2,HOST_TEMPREG,temp,temp2); |
3711 | emit_orrshl(rt,temp,temp2); |
3712 | } |
3713 | emit_readword(&address,addr); |
3714 | emit_writeword(temp2,&word); |
3715 | //save_regs(reglist); // don't need to, no state changes |
3716 | emit_shrimm(addr,16,1); |
3717 | emit_movimm((u_int)writemem,0); |
3718 | //emit_call((int)&indirect_jump_indexed); |
3719 | emit_mov(15,14); |
3720 | emit_readword_dualindexedx4(0,1,15); |
3721 | emit_readword(&Count,HOST_TEMPREG); |
3722 | emit_readword(&next_interupt,2); |
3723 | emit_addimm(HOST_TEMPREG,-2*stubs[n].d-2,HOST_TEMPREG); |
3724 | emit_writeword(2,&last_count); |
3725 | emit_sub(HOST_TEMPREG,2,cc<0?HOST_TEMPREG:cc); |
3726 | if(cc<0) { |
3727 | emit_storereg(CCREG,HOST_TEMPREG); |
3728 | } |
3729 | restore_regs(reglist); |
3730 | emit_jmp(stubs[n].retaddr); // return address |
3731 | #endif |
3732 | } |
3733 | |
57871462 |
3734 | #ifndef multdiv_assemble |
3735 | void multdiv_assemble(int i,struct regstat *i_regs) |
3736 | { |
3737 | printf("Need multdiv_assemble for this architecture.\n"); |
7c3a5182 |
3738 | abort(); |
57871462 |
3739 | } |
3740 | #endif |
3741 | |
7c3a5182 |
3742 | static void mov_assemble(int i,struct regstat *i_regs) |
57871462 |
3743 | { |
3744 | //if(opcode2[i]==0x10||opcode2[i]==0x12) { // MFHI/MFLO |
3745 | //if(opcode2[i]==0x11||opcode2[i]==0x13) { // MTHI/MTLO |
57871462 |
3746 | if(rt1[i]) { |
7c3a5182 |
3747 | signed char sl,tl; |
57871462 |
3748 | tl=get_reg(i_regs->regmap,rt1[i]); |
3749 | //assert(tl>=0); |
3750 | if(tl>=0) { |
57871462 |
3751 | sl=get_reg(i_regs->regmap,rs1[i]); |
3752 | if(sl>=0) emit_mov(sl,tl); |
3753 | else emit_loadreg(rs1[i],tl); |
57871462 |
3754 | } |
3755 | } |
3756 | } |
3757 | |
3968e69e |
3758 | // call interpreter, exception handler, things that change pc/regs/cycles ... |
3759 | static void call_c_cpu_handler(int i, const struct regstat *i_regs, u_int pc, void *func) |
57871462 |
3760 | { |
3761 | signed char ccreg=get_reg(i_regs->regmap,CCREG); |
3762 | assert(ccreg==HOST_CCREG); |
3763 | assert(!is_delayslot); |
581335b0 |
3764 | (void)ccreg; |
3968e69e |
3765 | |
3766 | emit_movimm(pc,3); // Get PC |
3767 | emit_readword(&last_count,2); |
3768 | emit_writeword(3,&psxRegs.pc); |
3769 | emit_addimm(HOST_CCREG,CLOCK_ADJUST(ccadj[i]),HOST_CCREG); // XXX |
3770 | emit_add(2,HOST_CCREG,2); |
3771 | emit_writeword(2,&psxRegs.cycle); |
2a014d73 |
3772 | emit_far_call(func); |
3773 | emit_far_jump(jump_to_new_pc); |
3968e69e |
3774 | } |
3775 | |
3776 | static void syscall_assemble(int i,struct regstat *i_regs) |
3777 | { |
3778 | emit_movimm(0x20,0); // cause code |
3779 | emit_movimm(0,1); // not in delay slot |
3780 | call_c_cpu_handler(i,i_regs,start+i*4,psxException); |
7139f3c8 |
3781 | } |
3782 | |
7c3a5182 |
3783 | static void hlecall_assemble(int i,struct regstat *i_regs) |
7139f3c8 |
3784 | { |
3968e69e |
3785 | void *hlefunc = psxNULL; |
dd79da89 |
3786 | uint32_t hleCode = source[i] & 0x03ffffff; |
3968e69e |
3787 | if (hleCode < ARRAY_SIZE(psxHLEt)) |
3788 | hlefunc = psxHLEt[hleCode]; |
3789 | |
3790 | call_c_cpu_handler(i,i_regs,start+i*4+4,hlefunc); |
57871462 |
3791 | } |
3792 | |
7c3a5182 |
3793 | static void intcall_assemble(int i,struct regstat *i_regs) |
1e973cb0 |
3794 | { |
3968e69e |
3795 | call_c_cpu_handler(i,i_regs,start+i*4,execI); |
1e973cb0 |
3796 | } |
3797 | |
8062d65a |
3798 | static void speculate_mov(int rs,int rt) |
3799 | { |
3800 | if(rt!=0) { |
3801 | smrv_strong_next|=1<<rt; |
3802 | smrv[rt]=smrv[rs]; |
3803 | } |
3804 | } |
3805 | |
3806 | static void speculate_mov_weak(int rs,int rt) |
3807 | { |
3808 | if(rt!=0) { |
3809 | smrv_weak_next|=1<<rt; |
3810 | smrv[rt]=smrv[rs]; |
3811 | } |
3812 | } |
3813 | |
3814 | static void speculate_register_values(int i) |
3815 | { |
3816 | if(i==0) { |
3817 | memcpy(smrv,psxRegs.GPR.r,sizeof(smrv)); |
3818 | // gp,sp are likely to stay the same throughout the block |
3819 | smrv_strong_next=(1<<28)|(1<<29)|(1<<30); |
3820 | smrv_weak_next=~smrv_strong_next; |
3821 | //printf(" llr %08x\n", smrv[4]); |
3822 | } |
3823 | smrv_strong=smrv_strong_next; |
3824 | smrv_weak=smrv_weak_next; |
3825 | switch(itype[i]) { |
3826 | case ALU: |
3827 | if ((smrv_strong>>rs1[i])&1) speculate_mov(rs1[i],rt1[i]); |
3828 | else if((smrv_strong>>rs2[i])&1) speculate_mov(rs2[i],rt1[i]); |
3829 | else if((smrv_weak>>rs1[i])&1) speculate_mov_weak(rs1[i],rt1[i]); |
3830 | else if((smrv_weak>>rs2[i])&1) speculate_mov_weak(rs2[i],rt1[i]); |
3831 | else { |
3832 | smrv_strong_next&=~(1<<rt1[i]); |
3833 | smrv_weak_next&=~(1<<rt1[i]); |
3834 | } |
3835 | break; |
3836 | case SHIFTIMM: |
3837 | smrv_strong_next&=~(1<<rt1[i]); |
3838 | smrv_weak_next&=~(1<<rt1[i]); |
3839 | // fallthrough |
3840 | case IMM16: |
3841 | if(rt1[i]&&is_const(®s[i],rt1[i])) { |
3842 | int value,hr=get_reg(regs[i].regmap,rt1[i]); |
3843 | if(hr>=0) { |
3844 | if(get_final_value(hr,i,&value)) |
3845 | smrv[rt1[i]]=value; |
3846 | else smrv[rt1[i]]=constmap[i][hr]; |
3847 | smrv_strong_next|=1<<rt1[i]; |
3848 | } |
3849 | } |
3850 | else { |
3851 | if ((smrv_strong>>rs1[i])&1) speculate_mov(rs1[i],rt1[i]); |
3852 | else if((smrv_weak>>rs1[i])&1) speculate_mov_weak(rs1[i],rt1[i]); |
3853 | } |
3854 | break; |
3855 | case LOAD: |
3856 | if(start<0x2000&&(rt1[i]==26||(smrv[rt1[i]]>>24)==0xa0)) { |
3857 | // special case for BIOS |
3858 | smrv[rt1[i]]=0xa0000000; |
3859 | smrv_strong_next|=1<<rt1[i]; |
3860 | break; |
3861 | } |
3862 | // fallthrough |
3863 | case SHIFT: |
3864 | case LOADLR: |
3865 | case MOV: |
3866 | smrv_strong_next&=~(1<<rt1[i]); |
3867 | smrv_weak_next&=~(1<<rt1[i]); |
3868 | break; |
3869 | case COP0: |
3870 | case COP2: |
3871 | if(opcode2[i]==0||opcode2[i]==2) { // MFC/CFC |
3872 | smrv_strong_next&=~(1<<rt1[i]); |
3873 | smrv_weak_next&=~(1<<rt1[i]); |
3874 | } |
3875 | break; |
3876 | case C2LS: |
3877 | if (opcode[i]==0x32) { // LWC2 |
3878 | smrv_strong_next&=~(1<<rt1[i]); |
3879 | smrv_weak_next&=~(1<<rt1[i]); |
3880 | } |
3881 | break; |
3882 | } |
3883 | #if 0 |
3884 | int r=4; |
3885 | printf("x %08x %08x %d %d c %08x %08x\n",smrv[r],start+i*4, |
3886 | ((smrv_strong>>r)&1),(smrv_weak>>r)&1,regs[i].isconst,regs[i].wasconst); |
3887 | #endif |
3888 | } |
3889 | |
7c3a5182 |
3890 | static void ds_assemble(int i,struct regstat *i_regs) |
57871462 |
3891 | { |
ffb0b9e0 |
3892 | speculate_register_values(i); |
57871462 |
3893 | is_delayslot=1; |
3894 | switch(itype[i]) { |
3895 | case ALU: |
3896 | alu_assemble(i,i_regs);break; |
3897 | case IMM16: |
3898 | imm16_assemble(i,i_regs);break; |
3899 | case SHIFT: |
3900 | shift_assemble(i,i_regs);break; |
3901 | case SHIFTIMM: |
3902 | shiftimm_assemble(i,i_regs);break; |
3903 | case LOAD: |
3904 | load_assemble(i,i_regs);break; |
3905 | case LOADLR: |
3906 | loadlr_assemble(i,i_regs);break; |
3907 | case STORE: |
3908 | store_assemble(i,i_regs);break; |
3909 | case STORELR: |
3910 | storelr_assemble(i,i_regs);break; |
3911 | case COP0: |
3912 | cop0_assemble(i,i_regs);break; |
3913 | case COP1: |
3914 | cop1_assemble(i,i_regs);break; |
3915 | case C1LS: |
3916 | c1ls_assemble(i,i_regs);break; |
b9b61529 |
3917 | case COP2: |
3918 | cop2_assemble(i,i_regs);break; |
3919 | case C2LS: |
3920 | c2ls_assemble(i,i_regs);break; |
3921 | case C2OP: |
3922 | c2op_assemble(i,i_regs);break; |
57871462 |
3923 | case MULTDIV: |
3924 | multdiv_assemble(i,i_regs);break; |
3925 | case MOV: |
3926 | mov_assemble(i,i_regs);break; |
3927 | case SYSCALL: |
7139f3c8 |
3928 | case HLECALL: |
1e973cb0 |
3929 | case INTCALL: |
57871462 |
3930 | case SPAN: |
3931 | case UJUMP: |
3932 | case RJUMP: |
3933 | case CJUMP: |
3934 | case SJUMP: |
c43b5311 |
3935 | SysPrintf("Jump in the delay slot. This is probably a bug.\n"); |
57871462 |
3936 | } |
3937 | is_delayslot=0; |
3938 | } |
3939 | |
3940 | // Is the branch target a valid internal jump? |
ad49de89 |
3941 | static int internal_branch(int addr) |
57871462 |
3942 | { |
3943 | if(addr&1) return 0; // Indirect (register) jump |
3944 | if(addr>=start && addr<start+slen*4-4) |
3945 | { |
71e490c5 |
3946 | return 1; |
57871462 |
3947 | } |
3948 | return 0; |
3949 | } |
3950 | |
ad49de89 |
3951 | static void wb_invalidate(signed char pre[],signed char entry[],uint64_t dirty,uint64_t u) |
57871462 |
3952 | { |
3953 | int hr; |
3954 | for(hr=0;hr<HOST_REGS;hr++) { |
3955 | if(hr!=EXCLUDE_REG) { |
3956 | if(pre[hr]!=entry[hr]) { |
3957 | if(pre[hr]>=0) { |
3958 | if((dirty>>hr)&1) { |
3959 | if(get_reg(entry,pre[hr])<0) { |
00fa9369 |
3960 | assert(pre[hr]<64); |
3961 | if(!((u>>pre[hr])&1)) |
3962 | emit_storereg(pre[hr],hr); |
57871462 |
3963 | } |
3964 | } |
3965 | } |
3966 | } |
3967 | } |
3968 | } |
3969 | // Move from one register to another (no writeback) |
3970 | for(hr=0;hr<HOST_REGS;hr++) { |
3971 | if(hr!=EXCLUDE_REG) { |
3972 | if(pre[hr]!=entry[hr]) { |
3973 | if(pre[hr]>=0&&(pre[hr]&63)<TEMPREG) { |
3974 | int nr; |
3975 | if((nr=get_reg(entry,pre[hr]))>=0) { |
3976 | emit_mov(hr,nr); |
3977 | } |
3978 | } |
3979 | } |
3980 | } |
3981 | } |
3982 | } |
57871462 |
3983 | |
3984 | // Load the specified registers |
3985 | // This only loads the registers given as arguments because |
3986 | // we don't want to load things that will be overwritten |
ad49de89 |
3987 | static void load_regs(signed char entry[],signed char regmap[],int rs1,int rs2) |
57871462 |
3988 | { |
3989 | int hr; |
3990 | // Load 32-bit regs |
3991 | for(hr=0;hr<HOST_REGS;hr++) { |
3992 | if(hr!=EXCLUDE_REG&®map[hr]>=0) { |
3993 | if(entry[hr]!=regmap[hr]) { |
3994 | if(regmap[hr]==rs1||regmap[hr]==rs2) |
3995 | { |
3996 | if(regmap[hr]==0) { |
3997 | emit_zeroreg(hr); |
3998 | } |
3999 | else |
4000 | { |
4001 | emit_loadreg(regmap[hr],hr); |
4002 | } |
4003 | } |
4004 | } |
4005 | } |
4006 | } |
57871462 |
4007 | } |
4008 | |
4009 | // Load registers prior to the start of a loop |
4010 | // so that they are not loaded within the loop |
4011 | static void loop_preload(signed char pre[],signed char entry[]) |
4012 | { |
4013 | int hr; |
4014 | for(hr=0;hr<HOST_REGS;hr++) { |
4015 | if(hr!=EXCLUDE_REG) { |
4016 | if(pre[hr]!=entry[hr]) { |
4017 | if(entry[hr]>=0) { |
4018 | if(get_reg(pre,entry[hr])<0) { |
4019 | assem_debug("loop preload:\n"); |
4020 | //printf("loop preload: %d\n",hr); |
4021 | if(entry[hr]==0) { |
4022 | emit_zeroreg(hr); |
4023 | } |
4024 | else if(entry[hr]<TEMPREG) |
4025 | { |
4026 | emit_loadreg(entry[hr],hr); |
4027 | } |
4028 | else if(entry[hr]-64<TEMPREG) |
4029 | { |
4030 | emit_loadreg(entry[hr],hr); |
4031 | } |
4032 | } |
4033 | } |
4034 | } |
4035 | } |
4036 | } |
4037 | } |
4038 | |
4039 | // Generate address for load/store instruction |
b9b61529 |
4040 | // goes to AGEN for writes, FTEMP for LOADLR and cop1/2 loads |
57871462 |
4041 | void address_generation(int i,struct regstat *i_regs,signed char entry[]) |
4042 | { |
b9b61529 |
4043 | if(itype[i]==LOAD||itype[i]==LOADLR||itype[i]==STORE||itype[i]==STORELR||itype[i]==C1LS||itype[i]==C2LS) { |
5194fb95 |
4044 | int ra=-1; |
57871462 |
4045 | int agr=AGEN1+(i&1); |
57871462 |
4046 | if(itype[i]==LOAD) { |
4047 | ra=get_reg(i_regs->regmap,rt1[i]); |
9f51b4b9 |
4048 | if(ra<0) ra=get_reg(i_regs->regmap,-1); |
535d208a |
4049 | assert(ra>=0); |
57871462 |
4050 | } |
4051 | if(itype[i]==LOADLR) { |
4052 | ra=get_reg(i_regs->regmap,FTEMP); |
4053 | } |
4054 | if(itype[i]==STORE||itype[i]==STORELR) { |
4055 | ra=get_reg(i_regs->regmap,agr); |
4056 | if(ra<0) ra=get_reg(i_regs->regmap,-1); |
4057 | } |
b9b61529 |
4058 | if(itype[i]==C1LS||itype[i]==C2LS) { |
4059 | if ((opcode[i]&0x3b)==0x31||(opcode[i]&0x3b)==0x32) // LWC1/LDC1/LWC2/LDC2 |
57871462 |
4060 | ra=get_reg(i_regs->regmap,FTEMP); |
1fd1aceb |
4061 | else { // SWC1/SDC1/SWC2/SDC2 |
57871462 |
4062 | ra=get_reg(i_regs->regmap,agr); |
4063 | if(ra<0) ra=get_reg(i_regs->regmap,-1); |
4064 | } |
4065 | } |
4066 | int rs=get_reg(i_regs->regmap,rs1[i]); |
57871462 |
4067 | if(ra>=0) { |
4068 | int offset=imm[i]; |
4069 | int c=(i_regs->wasconst>>rs)&1; |
4070 | if(rs1[i]==0) { |
4071 | // Using r0 as a base address |
57871462 |
4072 | if(!entry||entry[ra]!=agr) { |
4073 | if (opcode[i]==0x22||opcode[i]==0x26) { |
4074 | emit_movimm(offset&0xFFFFFFFC,ra); // LWL/LWR |
4075 | }else if (opcode[i]==0x1a||opcode[i]==0x1b) { |
4076 | emit_movimm(offset&0xFFFFFFF8,ra); // LDL/LDR |
4077 | }else{ |
4078 | emit_movimm(offset,ra); |
4079 | } |
4080 | } // else did it in the previous cycle |
4081 | } |
4082 | else if(rs<0) { |
4083 | if(!entry||entry[ra]!=rs1[i]) |
4084 | emit_loadreg(rs1[i],ra); |
4085 | //if(!entry||entry[ra]!=rs1[i]) |
4086 | // printf("poor load scheduling!\n"); |
4087 | } |
4088 | else if(c) { |
57871462 |
4089 | if(rs1[i]!=rt1[i]||itype[i]!=LOAD) { |
4090 | if(!entry||entry[ra]!=agr) { |
4091 | if (opcode[i]==0x22||opcode[i]==0x26) { |
4092 | emit_movimm((constmap[i][rs]+offset)&0xFFFFFFFC,ra); // LWL/LWR |
4093 | }else if (opcode[i]==0x1a||opcode[i]==0x1b) { |
4094 | emit_movimm((constmap[i][rs]+offset)&0xFFFFFFF8,ra); // LDL/LDR |
4095 | }else{ |
57871462 |
4096 | emit_movimm(constmap[i][rs]+offset,ra); |
8575a877 |
4097 | regs[i].loadedconst|=1<<ra; |
57871462 |
4098 | } |
4099 | } // else did it in the previous cycle |
4100 | } // else load_consts already did it |
4101 | } |
4102 | if(offset&&!c&&rs1[i]) { |
4103 | if(rs>=0) { |
4104 | emit_addimm(rs,offset,ra); |
4105 | }else{ |
4106 | emit_addimm(ra,offset,ra); |
4107 | } |
4108 | } |
4109 | } |
4110 | } |
4111 | // Preload constants for next instruction |
b9b61529 |
4112 | if(itype[i+1]==LOAD||itype[i+1]==LOADLR||itype[i+1]==STORE||itype[i+1]==STORELR||itype[i+1]==C1LS||itype[i+1]==C2LS) { |
57871462 |
4113 | int agr,ra; |
57871462 |
4114 | // Actual address |
4115 | agr=AGEN1+((i+1)&1); |
4116 | ra=get_reg(i_regs->regmap,agr); |
4117 | if(ra>=0) { |
4118 | int rs=get_reg(regs[i+1].regmap,rs1[i+1]); |
4119 | int offset=imm[i+1]; |
4120 | int c=(regs[i+1].wasconst>>rs)&1; |
4121 | if(c&&(rs1[i+1]!=rt1[i+1]||itype[i+1]!=LOAD)) { |
4122 | if (opcode[i+1]==0x22||opcode[i+1]==0x26) { |
4123 | emit_movimm((constmap[i+1][rs]+offset)&0xFFFFFFFC,ra); // LWL/LWR |
4124 | }else if (opcode[i+1]==0x1a||opcode[i+1]==0x1b) { |
4125 | emit_movimm((constmap[i+1][rs]+offset)&0xFFFFFFF8,ra); // LDL/LDR |
4126 | }else{ |
57871462 |
4127 | emit_movimm(constmap[i+1][rs]+offset,ra); |
8575a877 |
4128 | regs[i+1].loadedconst|=1<<ra; |
57871462 |
4129 | } |
4130 | } |
4131 | else if(rs1[i+1]==0) { |
4132 | // Using r0 as a base address |
4133 | if (opcode[i+1]==0x22||opcode[i+1]==0x26) { |
4134 | emit_movimm(offset&0xFFFFFFFC,ra); // LWL/LWR |
4135 | }else if (opcode[i+1]==0x1a||opcode[i+1]==0x1b) { |
4136 | emit_movimm(offset&0xFFFFFFF8,ra); // LDL/LDR |
4137 | }else{ |
4138 | emit_movimm(offset,ra); |
4139 | } |
4140 | } |
4141 | } |
4142 | } |
4143 | } |
4144 | |
e2b5e7aa |
4145 | static int get_final_value(int hr, int i, int *value) |
57871462 |
4146 | { |
4147 | int reg=regs[i].regmap[hr]; |
4148 | while(i<slen-1) { |
4149 | if(regs[i+1].regmap[hr]!=reg) break; |
4150 | if(!((regs[i+1].isconst>>hr)&1)) break; |
4151 | if(bt[i+1]) break; |
4152 | i++; |
4153 | } |
4154 | if(i<slen-1) { |
4155 | if(itype[i]==UJUMP||itype[i]==RJUMP||itype[i]==CJUMP||itype[i]==SJUMP) { |
4156 | *value=constmap[i][hr]; |
4157 | return 1; |
4158 | } |
4159 | if(!bt[i+1]) { |
4160 | if(itype[i+1]==UJUMP||itype[i+1]==RJUMP||itype[i+1]==CJUMP||itype[i+1]==SJUMP) { |
4161 | // Load in delay slot, out-of-order execution |
4162 | if(itype[i+2]==LOAD&&rs1[i+2]==reg&&rt1[i+2]==reg&&((regs[i+1].wasconst>>hr)&1)) |
4163 | { |
57871462 |
4164 | // Precompute load address |
4165 | *value=constmap[i][hr]+imm[i+2]; |
4166 | return 1; |
4167 | } |
4168 | } |
4169 | if(itype[i+1]==LOAD&&rs1[i+1]==reg&&rt1[i+1]==reg) |
4170 | { |
57871462 |
4171 | // Precompute load address |
4172 | *value=constmap[i][hr]+imm[i+1]; |
643aeae3 |
4173 | //printf("c=%x imm=%lx\n",(long)constmap[i][hr],imm[i+1]); |
57871462 |
4174 | return 1; |
4175 | } |
4176 | } |
4177 | } |
4178 | *value=constmap[i][hr]; |
643aeae3 |
4179 | //printf("c=%lx\n",(long)constmap[i][hr]); |
57871462 |
4180 | if(i==slen-1) return 1; |
00fa9369 |
4181 | assert(reg < 64); |
4182 | return !((unneeded_reg[i+1]>>reg)&1); |
57871462 |
4183 | } |
4184 | |
4185 | // Load registers with known constants |
ad49de89 |
4186 | static void load_consts(signed char pre[],signed char regmap[],int i) |
57871462 |
4187 | { |
8575a877 |
4188 | int hr,hr2; |
4189 | // propagate loaded constant flags |
4190 | if(i==0||bt[i]) |
4191 | regs[i].loadedconst=0; |
4192 | else { |
4193 | for(hr=0;hr<HOST_REGS;hr++) { |
4194 | if(hr!=EXCLUDE_REG&®map[hr]>=0&&((regs[i-1].isconst>>hr)&1)&&pre[hr]==regmap[hr] |
4195 | &®map[hr]==regs[i-1].regmap[hr]&&((regs[i-1].loadedconst>>hr)&1)) |
4196 | { |
4197 | regs[i].loadedconst|=1<<hr; |
4198 | } |
4199 | } |
4200 | } |
57871462 |
4201 | // Load 32-bit regs |
4202 | for(hr=0;hr<HOST_REGS;hr++) { |
4203 | if(hr!=EXCLUDE_REG&®map[hr]>=0) { |
4204 | //if(entry[hr]!=regmap[hr]) { |
8575a877 |
4205 | if(!((regs[i].loadedconst>>hr)&1)) { |
ad49de89 |
4206 | assert(regmap[hr]<64); |
4207 | if(((regs[i].isconst>>hr)&1)&®map[hr]>0) { |
8575a877 |
4208 | int value,similar=0; |
57871462 |
4209 | if(get_final_value(hr,i,&value)) { |
8575a877 |
4210 | // see if some other register has similar value |
4211 | for(hr2=0;hr2<HOST_REGS;hr2++) { |
4212 | if(hr2!=EXCLUDE_REG&&((regs[i].loadedconst>>hr2)&1)) { |
4213 | if(is_similar_value(value,constmap[i][hr2])) { |
4214 | similar=1; |
4215 | break; |
4216 | } |
4217 | } |
4218 | } |
4219 | if(similar) { |
4220 | int value2; |
4221 | if(get_final_value(hr2,i,&value2)) // is this needed? |
4222 | emit_movimm_from(value2,hr2,value,hr); |
4223 | else |
4224 | emit_movimm(value,hr); |
4225 | } |
4226 | else if(value==0) { |
57871462 |
4227 | emit_zeroreg(hr); |
4228 | } |
4229 | else { |
4230 | emit_movimm(value,hr); |
4231 | } |
4232 | } |
8575a877 |
4233 | regs[i].loadedconst|=1<<hr; |
57871462 |
4234 | } |
4235 | } |
4236 | } |
4237 | } |
57871462 |
4238 | } |
ad49de89 |
4239 | |
4240 | void load_all_consts(signed char regmap[], u_int dirty, int i) |
57871462 |
4241 | { |
4242 | int hr; |
4243 | // Load 32-bit regs |
4244 | for(hr=0;hr<HOST_REGS;hr++) { |
4245 | if(hr!=EXCLUDE_REG&®map[hr]>=0&&((dirty>>hr)&1)) { |
ad49de89 |
4246 | assert(regmap[hr] < 64); |
4247 | if(((regs[i].isconst>>hr)&1)&®map[hr]>0) { |
57871462 |
4248 | int value=constmap[i][hr]; |
4249 | if(value==0) { |
4250 | emit_zeroreg(hr); |
4251 | } |
4252 | else { |
4253 | emit_movimm(value,hr); |
4254 | } |
4255 | } |
4256 | } |
4257 | } |
57871462 |
4258 | } |
4259 | |
4260 | // Write out all dirty registers (except cycle count) |
ad49de89 |
4261 | static void wb_dirtys(signed char i_regmap[],uint64_t i_dirty) |
57871462 |
4262 | { |
4263 | int hr; |
4264 | for(hr=0;hr<HOST_REGS;hr++) { |
4265 | if(hr!=EXCLUDE_REG) { |
4266 | if(i_regmap[hr]>0) { |
4267 | if(i_regmap[hr]!=CCREG) { |
4268 | if((i_dirty>>hr)&1) { |
00fa9369 |
4269 | assert(i_regmap[hr]<64); |
4270 | emit_storereg(i_regmap[hr],hr); |
57871462 |
4271 | } |
4272 | } |
4273 | } |
4274 | } |
4275 | } |
4276 | } |
ad49de89 |
4277 | |
57871462 |
4278 | // Write out dirty registers that we need to reload (pair with load_needed_regs) |
4279 | // This writes the registers not written by store_regs_bt |
ad49de89 |
4280 | void wb_needed_dirtys(signed char i_regmap[],uint64_t i_dirty,int addr) |
57871462 |
4281 | { |
4282 | int hr; |
4283 | int t=(addr-start)>>2; |
4284 | for(hr=0;hr<HOST_REGS;hr++) { |
4285 | if(hr!=EXCLUDE_REG) { |
4286 | if(i_regmap[hr]>0) { |
4287 | if(i_regmap[hr]!=CCREG) { |
ad49de89 |
4288 | if(i_regmap[hr]==regs[t].regmap_entry[hr] && ((regs[t].dirty>>hr)&1)) { |
57871462 |
4289 | if((i_dirty>>hr)&1) { |
00fa9369 |
4290 | assert(i_regmap[hr]<64); |
4291 | emit_storereg(i_regmap[hr],hr); |
57871462 |
4292 | } |
4293 | } |
4294 | } |
4295 | } |
4296 | } |
4297 | } |
4298 | } |
4299 | |
4300 | // Load all registers (except cycle count) |
4301 | void load_all_regs(signed char i_regmap[]) |
4302 | { |
4303 | int hr; |
4304 | for(hr=0;hr<HOST_REGS;hr++) { |
4305 | if(hr!=EXCLUDE_REG) { |
4306 | if(i_regmap[hr]==0) { |
4307 | emit_zeroreg(hr); |
4308 | } |
4309 | else |
ea3d2e6e |
4310 | if(i_regmap[hr]>0 && (i_regmap[hr]&63)<TEMPREG && i_regmap[hr]!=CCREG) |
57871462 |
4311 | { |
4312 | emit_loadreg(i_regmap[hr],hr); |
4313 | } |
4314 | } |
4315 | } |
4316 | } |
4317 | |
4318 | // Load all current registers also needed by next instruction |
4319 | void load_needed_regs(signed char i_regmap[],signed char next_regmap[]) |
4320 | { |
4321 | int hr; |
4322 | for(hr=0;hr<HOST_REGS;hr++) { |
4323 | if(hr!=EXCLUDE_REG) { |
4324 | if(get_reg(next_regmap,i_regmap[hr])>=0) { |
4325 | if(i_regmap[hr]==0) { |
4326 | emit_zeroreg(hr); |
4327 | } |
4328 | else |
ea3d2e6e |
4329 | if(i_regmap[hr]>0 && (i_regmap[hr]&63)<TEMPREG && i_regmap[hr]!=CCREG) |
57871462 |
4330 | { |
4331 | emit_loadreg(i_regmap[hr],hr); |
4332 | } |
4333 | } |
4334 | } |
4335 | } |
4336 | } |
4337 | |
4338 | // Load all regs, storing cycle count if necessary |
4339 | void load_regs_entry(int t) |
4340 | { |
4341 | int hr; |
2573466a |
4342 | if(is_ds[t]) emit_addimm(HOST_CCREG,CLOCK_ADJUST(1),HOST_CCREG); |
4343 | else if(ccadj[t]) emit_addimm(HOST_CCREG,-CLOCK_ADJUST(ccadj[t]),HOST_CCREG); |
57871462 |
4344 | if(regs[t].regmap_entry[HOST_CCREG]!=CCREG) { |
4345 | emit_storereg(CCREG,HOST_CCREG); |
4346 | } |
4347 | // Load 32-bit regs |
4348 | for(hr=0;hr<HOST_REGS;hr++) { |
ea3d2e6e |
4349 | if(regs[t].regmap_entry[hr]>=0&®s[t].regmap_entry[hr]<TEMPREG) { |
57871462 |
4350 | if(regs[t].regmap_entry[hr]==0) { |
4351 | emit_zeroreg(hr); |
4352 | } |
4353 | else if(regs[t].regmap_entry[hr]!=CCREG) |
4354 | { |
4355 | emit_loadreg(regs[t].regmap_entry[hr],hr); |
4356 | } |
4357 | } |
4358 | } |
57871462 |
4359 | } |
4360 | |
4361 | // Store dirty registers prior to branch |
ad49de89 |
4362 | void store_regs_bt(signed char i_regmap[],uint64_t i_dirty,int addr) |
57871462 |
4363 | { |
ad49de89 |
4364 | if(internal_branch(addr)) |
57871462 |
4365 | { |
4366 | int t=(addr-start)>>2; |
4367 | int hr; |
4368 | for(hr=0;hr<HOST_REGS;hr++) { |
4369 | if(hr!=EXCLUDE_REG) { |
4370 | if(i_regmap[hr]>0 && i_regmap[hr]!=CCREG) { |
ad49de89 |
4371 | if(i_regmap[hr]!=regs[t].regmap_entry[hr] || !((regs[t].dirty>>hr)&1)) { |
57871462 |
4372 | if((i_dirty>>hr)&1) { |
00fa9369 |
4373 | assert(i_regmap[hr]<64); |
4374 | if(!((unneeded_reg[t]>>i_regmap[hr])&1)) |
4375 | emit_storereg(i_regmap[hr],hr); |
57871462 |
4376 | } |
4377 | } |
4378 | } |
4379 | } |
4380 | } |
4381 | } |
4382 | else |
4383 | { |
4384 | // Branch out of this block, write out all dirty regs |
ad49de89 |
4385 | wb_dirtys(i_regmap,i_dirty); |
57871462 |
4386 | } |
4387 | } |
4388 | |
4389 | // Load all needed registers for branch target |
ad49de89 |
4390 | static void load_regs_bt(signed char i_regmap[],uint64_t i_dirty,int addr) |
57871462 |
4391 | { |
4392 | //if(addr>=start && addr<(start+slen*4)) |
ad49de89 |
4393 | if(internal_branch(addr)) |
57871462 |
4394 | { |
4395 | int t=(addr-start)>>2; |
4396 | int hr; |
4397 | // Store the cycle count before loading something else |
4398 | if(i_regmap[HOST_CCREG]!=CCREG) { |
4399 | assert(i_regmap[HOST_CCREG]==-1); |
4400 | } |
4401 | if(regs[t].regmap_entry[HOST_CCREG]!=CCREG) { |
4402 | emit_storereg(CCREG,HOST_CCREG); |
4403 | } |
4404 | // Load 32-bit regs |
4405 | for(hr=0;hr<HOST_REGS;hr++) { |
ea3d2e6e |
4406 | if(hr!=EXCLUDE_REG&®s[t].regmap_entry[hr]>=0&®s[t].regmap_entry[hr]<TEMPREG) { |
00fa9369 |
4407 | if(i_regmap[hr]!=regs[t].regmap_entry[hr]) { |
57871462 |
4408 | if(regs[t].regmap_entry[hr]==0) { |
4409 | emit_zeroreg(hr); |
4410 | } |
4411 | else if(regs[t].regmap_entry[hr]!=CCREG) |
4412 | { |
4413 | emit_loadreg(regs[t].regmap_entry[hr],hr); |
4414 | } |
4415 | } |
4416 | } |
4417 | } |
57871462 |
4418 | } |
4419 | } |
4420 | |
ad49de89 |
4421 | static int match_bt(signed char i_regmap[],uint64_t i_dirty,int addr) |
57871462 |
4422 | { |
4423 | if(addr>=start && addr<start+slen*4-4) |
4424 | { |
4425 | int t=(addr-start)>>2; |
4426 | int hr; |
4427 | if(regs[t].regmap_entry[HOST_CCREG]!=CCREG) return 0; |
4428 | for(hr=0;hr<HOST_REGS;hr++) |
4429 | { |
4430 | if(hr!=EXCLUDE_REG) |
4431 | { |
4432 | if(i_regmap[hr]!=regs[t].regmap_entry[hr]) |
4433 | { |
ea3d2e6e |
4434 | if(regs[t].regmap_entry[hr]>=0&&(regs[t].regmap_entry[hr]|64)<TEMPREG+64) |
57871462 |
4435 | { |
4436 | return 0; |
4437 | } |
9f51b4b9 |
4438 | else |
57871462 |
4439 | if((i_dirty>>hr)&1) |
4440 | { |
ea3d2e6e |
4441 | if(i_regmap[hr]<TEMPREG) |
57871462 |
4442 | { |
4443 | if(!((unneeded_reg[t]>>i_regmap[hr])&1)) |
4444 | return 0; |
4445 | } |
ea3d2e6e |
4446 | else if(i_regmap[hr]>=64&&i_regmap[hr]<TEMPREG+64) |
57871462 |
4447 | { |
00fa9369 |
4448 | assert(0); |
57871462 |
4449 | } |
4450 | } |
4451 | } |
4452 | else // Same register but is it 32-bit or dirty? |
4453 | if(i_regmap[hr]>=0) |
4454 | { |
4455 | if(!((regs[t].dirty>>hr)&1)) |
4456 | { |
4457 | if((i_dirty>>hr)&1) |
4458 | { |
4459 | if(!((unneeded_reg[t]>>i_regmap[hr])&1)) |
4460 | { |
4461 | //printf("%x: dirty no match\n",addr); |
4462 | return 0; |
4463 | } |
4464 | } |
4465 | } |
57871462 |
4466 | } |
4467 | } |
4468 | } |
57871462 |
4469 | // Delay slots are not valid branch targets |
ad49de89 |
4470 | //if(t>0&&(itype[t-1]==RJUMP||itype[t-1]==UJUMP||itype[t-1]==CJUMP||itype[t-1]==SJUMP)) return 0; |
57871462 |
4471 | // Delay slots require additional processing, so do not match |
4472 | if(is_ds[t]) return 0; |
4473 | } |
4474 | else |
4475 | { |
4476 | int hr; |
4477 | for(hr=0;hr<HOST_REGS;hr++) |
4478 | { |
4479 | if(hr!=EXCLUDE_REG) |
4480 | { |
4481 | if(i_regmap[hr]>=0) |
4482 | { |
4483 | if(hr!=HOST_CCREG||i_regmap[hr]!=CCREG) |
4484 | { |
4485 | if((i_dirty>>hr)&1) |
4486 | { |
4487 | return 0; |
4488 | } |
4489 | } |
4490 | } |
4491 | } |
4492 | } |
4493 | } |
4494 | return 1; |
4495 | } |
4496 | |
dd114d7d |
4497 | #ifdef DRC_DBG |
4498 | static void drc_dbg_emit_do_cmp(int i) |
4499 | { |
4500 | extern void do_insn_cmp(); |
3968e69e |
4501 | //extern int cycle; |
81dbbf4c |
4502 | u_int hr, reglist = get_host_reglist(regs[i].regmap); |
dd114d7d |
4503 | |
40fca85b |
4504 | assem_debug("//do_insn_cmp %08x\n", start+i*4); |
dd114d7d |
4505 | save_regs(reglist); |
40fca85b |
4506 | // write out changed consts to match the interpreter |
4507 | if (i > 0 && !bt[i]) { |
4508 | for (hr = 0; hr < HOST_REGS; hr++) { |
4509 | int reg = regs[i-1].regmap[hr]; |
4510 | if (hr == EXCLUDE_REG || reg < 0) |
4511 | continue; |
4512 | if (!((regs[i-1].isconst >> hr) & 1)) |
4513 | continue; |
4514 | if (i > 1 && reg == regs[i-2].regmap[hr] && constmap[i-1][hr] == constmap[i-2][hr]) |
4515 | continue; |
4516 | emit_movimm(constmap[i-1][hr],0); |
4517 | emit_storereg(reg, 0); |
4518 | } |
4519 | } |
dd114d7d |
4520 | emit_movimm(start+i*4,0); |
643aeae3 |
4521 | emit_writeword(0,&pcaddr); |
2a014d73 |
4522 | emit_far_call(do_insn_cmp); |
643aeae3 |
4523 | //emit_readword(&cycle,0); |
dd114d7d |
4524 | //emit_addimm(0,2,0); |
643aeae3 |
4525 | //emit_writeword(0,&cycle); |
3968e69e |
4526 | (void)get_reg2; |
dd114d7d |
4527 | restore_regs(reglist); |
40fca85b |
4528 | assem_debug("\\\\do_insn_cmp\n"); |
dd114d7d |
4529 | } |
4530 | #else |
4531 | #define drc_dbg_emit_do_cmp(x) |
4532 | #endif |
4533 | |
57871462 |
4534 | // Used when a branch jumps into the delay slot of another branch |
7c3a5182 |
4535 | static void ds_assemble_entry(int i) |
57871462 |
4536 | { |
4537 | int t=(ba[i]-start)>>2; |
df4dc2b1 |
4538 | if (!instr_addr[t]) |
4539 | instr_addr[t] = out; |
57871462 |
4540 | assem_debug("Assemble delay slot at %x\n",ba[i]); |
4541 | assem_debug("<->\n"); |
dd114d7d |
4542 | drc_dbg_emit_do_cmp(t); |
57871462 |
4543 | if(regs[t].regmap_entry[HOST_CCREG]==CCREG&®s[t].regmap[HOST_CCREG]!=CCREG) |
ad49de89 |
4544 | wb_register(CCREG,regs[t].regmap_entry,regs[t].wasdirty); |
4545 | load_regs(regs[t].regmap_entry,regs[t].regmap,rs1[t],rs2[t]); |
57871462 |
4546 | address_generation(t,®s[t],regs[t].regmap_entry); |
b9b61529 |
4547 | if(itype[t]==STORE||itype[t]==STORELR||(opcode[t]&0x3b)==0x39||(opcode[t]&0x3b)==0x3a) |
ad49de89 |
4548 | load_regs(regs[t].regmap_entry,regs[t].regmap,INVCP,INVCP); |
57871462 |
4549 | is_delayslot=0; |
4550 | switch(itype[t]) { |
4551 | case ALU: |
4552 | alu_assemble(t,®s[t]);break; |
4553 | case IMM16: |
4554 | imm16_assemble(t,®s[t]);break; |
4555 | case SHIFT: |
4556 | shift_assemble(t,®s[t]);break; |
4557 | case SHIFTIMM: |
4558 | shiftimm_assemble(t,®s[t]);break; |
4559 | case LOAD: |
4560 | load_assemble(t,®s[t]);break; |
4561 | case LOADLR: |
4562 | loadlr_assemble(t,®s[t]);break; |
4563 | case STORE: |
4564 | store_assemble(t,®s[t]);break; |
4565 | case STORELR: |
4566 | storelr_assemble(t,®s[t]);break; |
4567 | case COP0: |
4568 | cop0_assemble(t,®s[t]);break; |
4569 | case COP1: |
4570 | cop1_assemble(t,®s[t]);break; |
4571 | case C1LS: |
4572 | c1ls_assemble(t,®s[t]);break; |
b9b61529 |
4573 | case COP2: |
4574 | cop2_assemble(t,®s[t]);break; |
4575 | case C2LS: |
4576 | c2ls_assemble(t,®s[t]);break; |
4577 | case C2OP: |
4578 | c2op_assemble(t,®s[t]);break; |
57871462 |
4579 | case MULTDIV: |
4580 | multdiv_assemble(t,®s[t]);break; |
4581 | case MOV: |
4582 | mov_assemble(t,®s[t]);break; |
4583 | case SYSCALL: |
7139f3c8 |
4584 | case HLECALL: |
1e973cb0 |
4585 | case INTCALL: |
57871462 |
4586 | case SPAN: |
4587 | case UJUMP: |
4588 | case RJUMP: |
4589 | case CJUMP: |
4590 | case SJUMP: |
c43b5311 |
4591 | SysPrintf("Jump in the delay slot. This is probably a bug.\n"); |
57871462 |
4592 | } |
ad49de89 |
4593 | store_regs_bt(regs[t].regmap,regs[t].dirty,ba[i]+4); |
4594 | load_regs_bt(regs[t].regmap,regs[t].dirty,ba[i]+4); |
4595 | if(internal_branch(ba[i]+4)) |
57871462 |
4596 | assem_debug("branch: internal\n"); |
4597 | else |
4598 | assem_debug("branch: external\n"); |
ad49de89 |
4599 | assert(internal_branch(ba[i]+4)); |
4600 | add_to_linker(out,ba[i]+4,internal_branch(ba[i]+4)); |
57871462 |
4601 | emit_jmp(0); |
4602 | } |
4603 | |
7c3a5182 |
4604 | static void emit_extjump(void *addr, u_int target) |
4605 | { |
4606 | emit_extjump2(addr, target, dyna_linker); |
4607 | } |
4608 | |
4609 | static void emit_extjump_ds(void *addr, u_int target) |
4610 | { |
4611 | emit_extjump2(addr, target, dyna_linker_ds); |
4612 | } |
4613 | |
d1e4ebd9 |
4614 | // Load 2 immediates optimizing for small code size |
4615 | static void emit_mov2imm_compact(int imm1,u_int rt1,int imm2,u_int rt2) |
4616 | { |
4617 | emit_movimm(imm1,rt1); |
4618 | emit_movimm_from(imm1,rt1,imm2,rt2); |
4619 | } |
4620 | |
57871462 |
4621 | void do_cc(int i,signed char i_regmap[],int *adj,int addr,int taken,int invert) |
4622 | { |
4623 | int count; |
b14b6a8f |
4624 | void *jaddr; |
4625 | void *idle=NULL; |
b6e87b2b |
4626 | int t=0; |
57871462 |
4627 | if(itype[i]==RJUMP) |
4628 | { |
4629 | *adj=0; |
4630 | } |
4631 | //if(ba[i]>=start && ba[i]<(start+slen*4)) |
ad49de89 |
4632 | if(internal_branch(ba[i])) |
57871462 |
4633 | { |
b6e87b2b |
4634 | t=(ba[i]-start)>>2; |
57871462 |
4635 | if(is_ds[t]) *adj=-1; // Branch into delay slot adds an extra cycle |
4636 | else *adj=ccadj[t]; |
4637 | } |
4638 | else |
4639 | { |
4640 | *adj=0; |
4641 | } |
4642 | count=ccadj[i]; |
4643 | if(taken==TAKEN && i==(ba[i]-start)>>2 && source[i+1]==0) { |
4644 | // Idle loop |
4645 | if(count&1) emit_addimm_and_set_flags(2*(count+2),HOST_CCREG); |
b14b6a8f |
4646 | idle=out; |
57871462 |
4647 | //emit_subfrommem(&idlecount,HOST_CCREG); // Count idle cycles |
4648 | emit_andimm(HOST_CCREG,3,HOST_CCREG); |
b14b6a8f |
4649 | jaddr=out; |
57871462 |
4650 | emit_jmp(0); |
4651 | } |
4652 | else if(*adj==0||invert) { |
b6e87b2b |
4653 | int cycles=CLOCK_ADJUST(count+2); |
4654 | // faster loop HACK |
bb4f300c |
4655 | #if 0 |
b6e87b2b |
4656 | if (t&&*adj) { |
4657 | int rel=t-i; |
4658 | if(-NO_CYCLE_PENALTY_THR<rel&&rel<0) |
4659 | cycles=CLOCK_ADJUST(*adj)+count+2-*adj; |
4660 | } |
bb4f300c |
4661 | #endif |
b6e87b2b |
4662 | emit_addimm_and_set_flags(cycles,HOST_CCREG); |
b14b6a8f |
4663 | jaddr=out; |
57871462 |
4664 | emit_jns(0); |
4665 | } |
4666 | else |
4667 | { |
2573466a |
4668 | emit_cmpimm(HOST_CCREG,-CLOCK_ADJUST(count+2)); |
b14b6a8f |
4669 | jaddr=out; |
57871462 |
4670 | emit_jns(0); |
4671 | } |
b14b6a8f |
4672 | add_stub(CC_STUB,jaddr,idle?idle:out,(*adj==0||invert||idle)?0:(count+2),i,addr,taken,0); |
57871462 |
4673 | } |
4674 | |
b14b6a8f |
4675 | static void do_ccstub(int n) |
57871462 |
4676 | { |
4677 | literal_pool(256); |
d1e4ebd9 |
4678 | assem_debug("do_ccstub %x\n",start+(u_int)stubs[n].b*4); |
b14b6a8f |
4679 | set_jump_target(stubs[n].addr, out); |
4680 | int i=stubs[n].b; |
4681 | if(stubs[n].d==NULLDS) { |
57871462 |
4682 | // Delay slot instruction is nullified ("likely" branch) |
ad49de89 |
4683 | wb_dirtys(regs[i].regmap,regs[i].dirty); |
57871462 |
4684 | } |
b14b6a8f |
4685 | else if(stubs[n].d!=TAKEN) { |
ad49de89 |
4686 | wb_dirtys(branch_regs[i].regmap,branch_regs[i].dirty); |
57871462 |
4687 | } |
4688 | else { |
ad49de89 |
4689 | if(internal_branch(ba[i])) |
4690 | wb_needed_dirtys(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
4691 | } |
b14b6a8f |
4692 | if(stubs[n].c!=-1) |
57871462 |
4693 | { |
4694 | // Save PC as return address |
b14b6a8f |
4695 | emit_movimm(stubs[n].c,EAX); |
643aeae3 |
4696 | emit_writeword(EAX,&pcaddr); |
57871462 |
4697 | } |
4698 | else |
4699 | { |
4700 | // Return address depends on which way the branch goes |
ad49de89 |
4701 | if(itype[i]==CJUMP||itype[i]==SJUMP) |
57871462 |
4702 | { |
4703 | int s1l=get_reg(branch_regs[i].regmap,rs1[i]); |
57871462 |
4704 | int s2l=get_reg(branch_regs[i].regmap,rs2[i]); |
57871462 |
4705 | if(rs1[i]==0) |
4706 | { |
ad49de89 |
4707 | s1l=s2l; |
4708 | s2l=-1; |
57871462 |
4709 | } |
4710 | else if(rs2[i]==0) |
4711 | { |
ad49de89 |
4712 | s2l=-1; |
57871462 |
4713 | } |
4714 | assert(s1l>=0); |
4715 | #ifdef DESTRUCTIVE_WRITEBACK |
4716 | if(rs1[i]) { |
ad49de89 |
4717 | if((branch_regs[i].dirty>>s1l)&&1) |
57871462 |
4718 | emit_loadreg(rs1[i],s1l); |
9f51b4b9 |
4719 | } |
57871462 |
4720 | else { |
ad49de89 |
4721 | if((branch_regs[i].dirty>>s1l)&1) |
57871462 |
4722 | emit_loadreg(rs2[i],s1l); |
4723 | } |
4724 | if(s2l>=0) |
ad49de89 |
4725 | if((branch_regs[i].dirty>>s2l)&1) |
57871462 |
4726 | emit_loadreg(rs2[i],s2l); |
4727 | #endif |
4728 | int hr=0; |
5194fb95 |
4729 | int addr=-1,alt=-1,ntaddr=-1; |
57871462 |
4730 | while(hr<HOST_REGS) |
4731 | { |
4732 | if(hr!=EXCLUDE_REG && hr!=HOST_CCREG && |
4733 | (branch_regs[i].regmap[hr]&63)!=rs1[i] && |
4734 | (branch_regs[i].regmap[hr]&63)!=rs2[i] ) |
4735 | { |
4736 | addr=hr++;break; |
4737 | } |
4738 | hr++; |
4739 | } |
4740 | while(hr<HOST_REGS) |
4741 | { |
4742 | if(hr!=EXCLUDE_REG && hr!=HOST_CCREG && |
4743 | (branch_regs[i].regmap[hr]&63)!=rs1[i] && |
4744 | (branch_regs[i].regmap[hr]&63)!=rs2[i] ) |
4745 | { |
4746 | alt=hr++;break; |
4747 | } |
4748 | hr++; |
4749 | } |
4750 | if((opcode[i]&0x2E)==6) // BLEZ/BGTZ needs another register |
4751 | { |
4752 | while(hr<HOST_REGS) |
4753 | { |
4754 | if(hr!=EXCLUDE_REG && hr!=HOST_CCREG && |
4755 | (branch_regs[i].regmap[hr]&63)!=rs1[i] && |
4756 | (branch_regs[i].regmap[hr]&63)!=rs2[i] ) |
4757 | { |
4758 | ntaddr=hr;break; |
4759 | } |
4760 | hr++; |
4761 | } |
4762 | assert(hr<HOST_REGS); |
4763 | } |
4764 | if((opcode[i]&0x2f)==4) // BEQ |
4765 | { |
4766 | #ifdef HAVE_CMOV_IMM |
ad49de89 |
4767 | if(s2l>=0) emit_cmp(s1l,s2l); |
4768 | else emit_test(s1l,s1l); |
4769 | emit_cmov2imm_e_ne_compact(ba[i],start+i*4+8,addr); |
4770 | #else |
4771 | emit_mov2imm_compact(ba[i],addr,start+i*4+8,alt); |
4772 | if(s2l>=0) emit_cmp(s1l,s2l); |
4773 | else emit_test(s1l,s1l); |
4774 | emit_cmovne_reg(alt,addr); |
57871462 |
4775 | #endif |
57871462 |
4776 | } |
4777 | if((opcode[i]&0x2f)==5) // BNE |
4778 | { |
4779 | #ifdef HAVE_CMOV_IMM |
ad49de89 |
4780 | if(s2l>=0) emit_cmp(s1l,s2l); |
4781 | else emit_test(s1l,s1l); |
4782 | emit_cmov2imm_e_ne_compact(start+i*4+8,ba[i],addr); |
4783 | #else |
4784 | emit_mov2imm_compact(start+i*4+8,addr,ba[i],alt); |
4785 | if(s2l>=0) emit_cmp(s1l,s2l); |
4786 | else emit_test(s1l,s1l); |
4787 | emit_cmovne_reg(alt,addr); |
57871462 |
4788 | #endif |
57871462 |
4789 | } |
4790 | if((opcode[i]&0x2f)==6) // BLEZ |
4791 | { |
4792 | //emit_movimm(ba[i],alt); |
4793 | //emit_movimm(start+i*4+8,addr); |
4794 | emit_mov2imm_compact(ba[i],alt,start+i*4+8,addr); |
4795 | emit_cmpimm(s1l,1); |
57871462 |
4796 | emit_cmovl_reg(alt,addr); |
57871462 |
4797 | } |
4798 | if((opcode[i]&0x2f)==7) // BGTZ |
4799 | { |
4800 | //emit_movimm(ba[i],addr); |
4801 | //emit_movimm(start+i*4+8,ntaddr); |
4802 | emit_mov2imm_compact(ba[i],addr,start+i*4+8,ntaddr); |
4803 | emit_cmpimm(s1l,1); |
57871462 |
4804 | emit_cmovl_reg(ntaddr,addr); |
57871462 |
4805 | } |
4806 | if((opcode[i]==1)&&(opcode2[i]&0x2D)==0) // BLTZ |
4807 | { |
4808 | //emit_movimm(ba[i],alt); |
4809 | //emit_movimm(start+i*4+8,addr); |
4810 | emit_mov2imm_compact(ba[i],alt,start+i*4+8,addr); |
ad49de89 |
4811 | emit_test(s1l,s1l); |
57871462 |
4812 | emit_cmovs_reg(alt,addr); |
4813 | } |
4814 | if((opcode[i]==1)&&(opcode2[i]&0x2D)==1) // BGEZ |
4815 | { |
4816 | //emit_movimm(ba[i],addr); |
4817 | //emit_movimm(start+i*4+8,alt); |
4818 | emit_mov2imm_compact(ba[i],addr,start+i*4+8,alt); |
ad49de89 |
4819 | emit_test(s1l,s1l); |
57871462 |
4820 | emit_cmovs_reg(alt,addr); |
4821 | } |
4822 | if(opcode[i]==0x11 && opcode2[i]==0x08 ) { |
4823 | if(source[i]&0x10000) // BC1T |
4824 | { |
4825 | //emit_movimm(ba[i],alt); |
4826 | //emit_movimm(start+i*4+8,addr); |
4827 | emit_mov2imm_compact(ba[i],alt,start+i*4+8,addr); |
4828 | emit_testimm(s1l,0x800000); |
4829 | emit_cmovne_reg(alt,addr); |
4830 | } |
4831 | else // BC1F |
4832 | { |
4833 | //emit_movimm(ba[i],addr); |
4834 | //emit_movimm(start+i*4+8,alt); |
4835 | emit_mov2imm_compact(ba[i],addr,start+i*4+8,alt); |
4836 | emit_testimm(s1l,0x800000); |
4837 | emit_cmovne_reg(alt,addr); |
4838 | } |
4839 | } |
643aeae3 |
4840 | emit_writeword(addr,&pcaddr); |
57871462 |
4841 | } |
4842 | else |
4843 | if(itype[i]==RJUMP) |
4844 | { |
4845 | int r=get_reg(branch_regs[i].regmap,rs1[i]); |
4846 | if(rs1[i]==rt1[i+1]||rs1[i]==rt2[i+1]) { |
4847 | r=get_reg(branch_regs[i].regmap,RTEMP); |
4848 | } |
643aeae3 |
4849 | emit_writeword(r,&pcaddr); |
57871462 |
4850 | } |
7c3a5182 |
4851 | else {SysPrintf("Unknown branch type in do_ccstub\n");abort();} |
57871462 |
4852 | } |
4853 | // Update cycle count |
4854 | assert(branch_regs[i].regmap[HOST_CCREG]==CCREG||branch_regs[i].regmap[HOST_CCREG]==-1); |
643aeae3 |
4855 | if(stubs[n].a) emit_addimm(HOST_CCREG,CLOCK_ADJUST((signed int)stubs[n].a),HOST_CCREG); |
2a014d73 |
4856 | emit_far_call(cc_interrupt); |
643aeae3 |
4857 | if(stubs[n].a) emit_addimm(HOST_CCREG,-CLOCK_ADJUST((signed int)stubs[n].a),HOST_CCREG); |
b14b6a8f |
4858 | if(stubs[n].d==TAKEN) { |
ad49de89 |
4859 | if(internal_branch(ba[i])) |
57871462 |
4860 | load_needed_regs(branch_regs[i].regmap,regs[(ba[i]-start)>>2].regmap_entry); |
4861 | else if(itype[i]==RJUMP) { |
4862 | if(get_reg(branch_regs[i].regmap,RTEMP)>=0) |
643aeae3 |
4863 | emit_readword(&pcaddr,get_reg(branch_regs[i].regmap,RTEMP)); |
57871462 |
4864 | else |
4865 | emit_loadreg(rs1[i],get_reg(branch_regs[i].regmap,rs1[i])); |
4866 | } |
b14b6a8f |
4867 | }else if(stubs[n].d==NOTTAKEN) { |
57871462 |
4868 | if(i<slen-2) load_needed_regs(branch_regs[i].regmap,regmap_pre[i+2]); |
4869 | else load_all_regs(branch_regs[i].regmap); |
b14b6a8f |
4870 | }else if(stubs[n].d==NULLDS) { |
57871462 |
4871 | // Delay slot instruction is nullified ("likely" branch) |
4872 | if(i<slen-2) load_needed_regs(regs[i].regmap,regmap_pre[i+2]); |
4873 | else load_all_regs(regs[i].regmap); |
4874 | }else{ |
4875 | load_all_regs(branch_regs[i].regmap); |
4876 | } |
d1e4ebd9 |
4877 | if (stubs[n].retaddr) |
4878 | emit_jmp(stubs[n].retaddr); |
4879 | else |
4880 | do_jump_vaddr(stubs[n].e); |
57871462 |
4881 | } |
4882 | |
643aeae3 |
4883 | static void add_to_linker(void *addr, u_int target, int ext) |
57871462 |
4884 | { |
643aeae3 |
4885 | assert(linkcount < ARRAY_SIZE(link_addr)); |
4886 | link_addr[linkcount].addr = addr; |
4887 | link_addr[linkcount].target = target; |
4888 | link_addr[linkcount].ext = ext; |
57871462 |
4889 | linkcount++; |
4890 | } |
4891 | |
eba830cd |
4892 | static void ujump_assemble_write_ra(int i) |
4893 | { |
4894 | int rt; |
4895 | unsigned int return_address; |
4896 | rt=get_reg(branch_regs[i].regmap,31); |
4897 | 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]); |
4898 | //assert(rt>=0); |
4899 | return_address=start+i*4+8; |
4900 | if(rt>=0) { |
4901 | #ifdef USE_MINI_HT |
ad49de89 |
4902 | if(internal_branch(return_address)&&rt1[i+1]!=31) { |
eba830cd |
4903 | int temp=-1; // note: must be ds-safe |
4904 | #ifdef HOST_TEMPREG |
4905 | temp=HOST_TEMPREG; |
4906 | #endif |
4907 | if(temp>=0) do_miniht_insert(return_address,rt,temp); |
4908 | else emit_movimm(return_address,rt); |
4909 | } |
4910 | else |
4911 | #endif |
4912 | { |
4913 | #ifdef REG_PREFETCH |
9f51b4b9 |
4914 | if(temp>=0) |
eba830cd |
4915 | { |
643aeae3 |
4916 | if(i_regmap[temp]!=PTEMP) emit_movimm((uintptr_t)hash_table_get(return_address),temp); |
eba830cd |
4917 | } |
4918 | #endif |
4919 | emit_movimm(return_address,rt); // PC into link register |
4920 | #ifdef IMM_PREFETCH |
df4dc2b1 |
4921 | emit_prefetch(hash_table_get(return_address)); |
eba830cd |
4922 | #endif |
4923 | } |
4924 | } |
4925 | } |
4926 | |
7c3a5182 |
4927 | static void ujump_assemble(int i,struct regstat *i_regs) |
57871462 |
4928 | { |
eba830cd |
4929 | int ra_done=0; |
57871462 |
4930 | if(i==(ba[i]-start)>>2) assem_debug("idle loop\n"); |
4931 | address_generation(i+1,i_regs,regs[i].regmap_entry); |
4932 | #ifdef REG_PREFETCH |
4933 | int temp=get_reg(branch_regs[i].regmap,PTEMP); |
9f51b4b9 |
4934 | if(rt1[i]==31&&temp>=0) |
57871462 |
4935 | { |
581335b0 |
4936 | signed char *i_regmap=i_regs->regmap; |
57871462 |
4937 | int return_address=start+i*4+8; |
9f51b4b9 |
4938 | if(get_reg(branch_regs[i].regmap,31)>0) |
643aeae3 |
4939 | if(i_regmap[temp]==PTEMP) emit_movimm((uintptr_t)hash_table_get(return_address),temp); |
57871462 |
4940 | } |
4941 | #endif |
eba830cd |
4942 | if(rt1[i]==31&&(rt1[i]==rs1[i+1]||rt1[i]==rs2[i+1])) { |
4943 | ujump_assemble_write_ra(i); // writeback ra for DS |
4944 | ra_done=1; |
57871462 |
4945 | } |
4ef8f67d |
4946 | ds_assemble(i+1,i_regs); |
4947 | uint64_t bc_unneeded=branch_regs[i].u; |
4ef8f67d |
4948 | bc_unneeded|=1|(1LL<<rt1[i]); |
ad49de89 |
4949 | wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,bc_unneeded); |
4950 | load_regs(regs[i].regmap,branch_regs[i].regmap,CCREG,CCREG); |
eba830cd |
4951 | if(!ra_done&&rt1[i]==31) |
4952 | ujump_assemble_write_ra(i); |
57871462 |
4953 | int cc,adj; |
4954 | cc=get_reg(branch_regs[i].regmap,CCREG); |
4955 | assert(cc==HOST_CCREG); |
ad49de89 |
4956 | store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
4957 | #ifdef REG_PREFETCH |
4958 | if(rt1[i]==31&&temp>=0) emit_prefetchreg(temp); |
4959 | #endif |
4960 | do_cc(i,branch_regs[i].regmap,&adj,ba[i],TAKEN,0); |
2573466a |
4961 | if(adj) emit_addimm(cc,CLOCK_ADJUST(ccadj[i]+2-adj),cc); |
ad49de89 |
4962 | load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
4963 | if(internal_branch(ba[i])) |
57871462 |
4964 | assem_debug("branch: internal\n"); |
4965 | else |
4966 | assem_debug("branch: external\n"); |
ad49de89 |
4967 | if(internal_branch(ba[i])&&is_ds[(ba[i]-start)>>2]) { |
57871462 |
4968 | ds_assemble_entry(i); |
4969 | } |
4970 | else { |
ad49de89 |
4971 | add_to_linker(out,ba[i],internal_branch(ba[i])); |
57871462 |
4972 | emit_jmp(0); |
4973 | } |
4974 | } |
4975 | |
eba830cd |
4976 | static void rjump_assemble_write_ra(int i) |
4977 | { |
4978 | int rt,return_address; |
4979 | assert(rt1[i+1]!=rt1[i]); |
4980 | assert(rt2[i+1]!=rt1[i]); |
4981 | rt=get_reg(branch_regs[i].regmap,rt1[i]); |
4982 | 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]); |
4983 | assert(rt>=0); |
4984 | return_address=start+i*4+8; |
4985 | #ifdef REG_PREFETCH |
9f51b4b9 |
4986 | if(temp>=0) |
eba830cd |
4987 | { |
643aeae3 |
4988 | if(i_regmap[temp]!=PTEMP) emit_movimm((uintptr_t)hash_table_get(return_address),temp); |
eba830cd |
4989 | } |
4990 | #endif |
4991 | emit_movimm(return_address,rt); // PC into link register |
4992 | #ifdef IMM_PREFETCH |
df4dc2b1 |
4993 | emit_prefetch(hash_table_get(return_address)); |
eba830cd |
4994 | #endif |
4995 | } |
4996 | |
7c3a5182 |
4997 | static void rjump_assemble(int i,struct regstat *i_regs) |
57871462 |
4998 | { |
57871462 |
4999 | int temp; |
581335b0 |
5000 | int rs,cc; |
eba830cd |
5001 | int ra_done=0; |
57871462 |
5002 | rs=get_reg(branch_regs[i].regmap,rs1[i]); |
5003 | assert(rs>=0); |
5004 | if(rs1[i]==rt1[i+1]||rs1[i]==rt2[i+1]) { |
5005 | // Delay slot abuse, make a copy of the branch address register |
5006 | temp=get_reg(branch_regs[i].regmap,RTEMP); |
5007 | assert(temp>=0); |
5008 | assert(regs[i].regmap[temp]==RTEMP); |
5009 | emit_mov(rs,temp); |
5010 | rs=temp; |
5011 | } |
5012 | address_generation(i+1,i_regs,regs[i].regmap_entry); |
5013 | #ifdef REG_PREFETCH |
9f51b4b9 |
5014 | if(rt1[i]==31) |
57871462 |
5015 | { |
5016 | if((temp=get_reg(branch_regs[i].regmap,PTEMP))>=0) { |
581335b0 |
5017 | signed char *i_regmap=i_regs->regmap; |
57871462 |
5018 | int return_address=start+i*4+8; |
643aeae3 |
5019 | if(i_regmap[temp]==PTEMP) emit_movimm((uintptr_t)hash_table_get(return_address),temp); |
57871462 |
5020 | } |
5021 | } |
5022 | #endif |
5023 | #ifdef USE_MINI_HT |
5024 | if(rs1[i]==31) { |
5025 | int rh=get_reg(regs[i].regmap,RHASH); |
5026 | if(rh>=0) do_preload_rhash(rh); |
5027 | } |
5028 | #endif |
eba830cd |
5029 | if(rt1[i]!=0&&(rt1[i]==rs1[i+1]||rt1[i]==rs2[i+1])) { |
5030 | rjump_assemble_write_ra(i); |
5031 | ra_done=1; |
57871462 |
5032 | } |
d5910d5d |
5033 | ds_assemble(i+1,i_regs); |
5034 | uint64_t bc_unneeded=branch_regs[i].u; |
d5910d5d |
5035 | bc_unneeded|=1|(1LL<<rt1[i]); |
d5910d5d |
5036 | bc_unneeded&=~(1LL<<rs1[i]); |
ad49de89 |
5037 | wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,bc_unneeded); |
5038 | load_regs(regs[i].regmap,branch_regs[i].regmap,rs1[i],CCREG); |
eba830cd |
5039 | if(!ra_done&&rt1[i]!=0) |
5040 | rjump_assemble_write_ra(i); |
57871462 |
5041 | cc=get_reg(branch_regs[i].regmap,CCREG); |
5042 | assert(cc==HOST_CCREG); |
581335b0 |
5043 | (void)cc; |
57871462 |
5044 | #ifdef USE_MINI_HT |
5045 | int rh=get_reg(branch_regs[i].regmap,RHASH); |
5046 | int ht=get_reg(branch_regs[i].regmap,RHTBL); |
5047 | if(rs1[i]==31) { |
5048 | if(regs[i].regmap[rh]!=RHASH) do_preload_rhash(rh); |
5049 | do_preload_rhtbl(ht); |
5050 | do_rhash(rs,rh); |
5051 | } |
5052 | #endif |
ad49de89 |
5053 | store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,-1); |
57871462 |
5054 | #ifdef DESTRUCTIVE_WRITEBACK |
ad49de89 |
5055 | if((branch_regs[i].dirty>>rs)&1) { |
57871462 |
5056 | if(rs1[i]!=rt1[i+1]&&rs1[i]!=rt2[i+1]) { |
5057 | emit_loadreg(rs1[i],rs); |
5058 | } |
5059 | } |
5060 | #endif |
5061 | #ifdef REG_PREFETCH |
5062 | if(rt1[i]==31&&temp>=0) emit_prefetchreg(temp); |
5063 | #endif |
5064 | #ifdef USE_MINI_HT |
5065 | if(rs1[i]==31) { |
5066 | do_miniht_load(ht,rh); |
5067 | } |
5068 | #endif |
5069 | //do_cc(i,branch_regs[i].regmap,&adj,-1,TAKEN); |
5070 | //if(adj) emit_addimm(cc,2*(ccadj[i]+2-adj),cc); // ??? - Shouldn't happen |
5071 | //assert(adj==0); |
2573466a |
5072 | emit_addimm_and_set_flags(CLOCK_ADJUST(ccadj[i]+2),HOST_CCREG); |
d1e4ebd9 |
5073 | add_stub(CC_STUB,out,NULL,0,i,-1,TAKEN,rs); |
911f2d55 |
5074 | if(itype[i+1]==COP0&&(source[i+1]&0x3f)==0x10) |
5075 | // special case for RFE |
5076 | emit_jmp(0); |
5077 | else |
71e490c5 |
5078 | emit_jns(0); |
ad49de89 |
5079 | //load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,-1); |
57871462 |
5080 | #ifdef USE_MINI_HT |
5081 | if(rs1[i]==31) { |
5082 | do_miniht_jump(rs,rh,ht); |
5083 | } |
5084 | else |
5085 | #endif |
5086 | { |
d1e4ebd9 |
5087 | do_jump_vaddr(rs); |
57871462 |
5088 | } |
57871462 |
5089 | #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
5090 | if(rt1[i]!=31&&i<slen-2&&(((u_int)out)&7)) emit_mov(13,13); |
5091 | #endif |
5092 | } |
5093 | |
7c3a5182 |
5094 | static void cjump_assemble(int i,struct regstat *i_regs) |
57871462 |
5095 | { |
5096 | signed char *i_regmap=i_regs->regmap; |
5097 | int cc; |
5098 | int match; |
ad49de89 |
5099 | match=match_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
5100 | assem_debug("match=%d\n",match); |
ad49de89 |
5101 | int s1l,s2l; |
57871462 |
5102 | int unconditional=0,nop=0; |
57871462 |
5103 | int invert=0; |
ad49de89 |
5104 | int internal=internal_branch(ba[i]); |
57871462 |
5105 | if(i==(ba[i]-start)>>2) assem_debug("idle loop\n"); |
57871462 |
5106 | if(!match) invert=1; |
5107 | #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
5108 | if(i>(ba[i]-start)>>2) invert=1; |
5109 | #endif |
3968e69e |
5110 | #ifdef __aarch64__ |
5111 | invert=1; // because of near cond. branches |
5112 | #endif |
9f51b4b9 |
5113 | |
e1190b87 |
5114 | if(ooo[i]) { |
57871462 |
5115 | s1l=get_reg(branch_regs[i].regmap,rs1[i]); |
57871462 |
5116 | s2l=get_reg(branch_regs[i].regmap,rs2[i]); |
57871462 |
5117 | } |
5118 | else { |
5119 | s1l=get_reg(i_regmap,rs1[i]); |
57871462 |
5120 | s2l=get_reg(i_regmap,rs2[i]); |
57871462 |
5121 | } |
5122 | if(rs1[i]==0&&rs2[i]==0) |
5123 | { |
5124 | if(opcode[i]&1) nop=1; |
5125 | else unconditional=1; |
5126 | //assert(opcode[i]!=5); |
5127 | //assert(opcode[i]!=7); |
5128 | //assert(opcode[i]!=0x15); |
5129 | //assert(opcode[i]!=0x17); |
5130 | } |
5131 | else if(rs1[i]==0) |
5132 | { |
ad49de89 |
5133 | s1l=s2l; |
5134 | s2l=-1; |
57871462 |
5135 | } |
5136 | else if(rs2[i]==0) |
5137 | { |
ad49de89 |
5138 | s2l=-1; |
57871462 |
5139 | } |
5140 | |
e1190b87 |
5141 | if(ooo[i]) { |
57871462 |
5142 | // Out of order execution (delay slot first) |
5143 | //printf("OOOE\n"); |
5144 | address_generation(i+1,i_regs,regs[i].regmap_entry); |
5145 | ds_assemble(i+1,i_regs); |
5146 | int adj; |
5147 | uint64_t bc_unneeded=branch_regs[i].u; |
57871462 |
5148 | bc_unneeded&=~((1LL<<rs1[i])|(1LL<<rs2[i])); |
57871462 |
5149 | bc_unneeded|=1; |
ad49de89 |
5150 | wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,bc_unneeded); |
5151 | load_regs(regs[i].regmap,branch_regs[i].regmap,rs1[i],rs2[i]); |
5152 | load_regs(regs[i].regmap,branch_regs[i].regmap,CCREG,CCREG); |
57871462 |
5153 | cc=get_reg(branch_regs[i].regmap,CCREG); |
5154 | assert(cc==HOST_CCREG); |
9f51b4b9 |
5155 | if(unconditional) |
ad49de89 |
5156 | store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
5157 | //do_cc(i,branch_regs[i].regmap,&adj,unconditional?ba[i]:-1,unconditional); |
5158 | //assem_debug("cycle count (adj)\n"); |
5159 | if(unconditional) { |
5160 | do_cc(i,branch_regs[i].regmap,&adj,ba[i],TAKEN,0); |
5161 | if(i!=(ba[i]-start)>>2 || source[i+1]!=0) { |
2573466a |
5162 | if(adj) emit_addimm(cc,CLOCK_ADJUST(ccadj[i]+2-adj),cc); |
ad49de89 |
5163 | load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
5164 | if(internal) |
5165 | assem_debug("branch: internal\n"); |
5166 | else |
5167 | assem_debug("branch: external\n"); |
5168 | if(internal&&is_ds[(ba[i]-start)>>2]) { |
5169 | ds_assemble_entry(i); |
5170 | } |
5171 | else { |
643aeae3 |
5172 | add_to_linker(out,ba[i],internal); |
57871462 |
5173 | emit_jmp(0); |
5174 | } |
5175 | #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
5176 | if(((u_int)out)&7) emit_addnop(0); |
5177 | #endif |
5178 | } |
5179 | } |
5180 | else if(nop) { |
2573466a |
5181 | emit_addimm_and_set_flags(CLOCK_ADJUST(ccadj[i]+2),cc); |
b14b6a8f |
5182 | void *jaddr=out; |
57871462 |
5183 | emit_jns(0); |
b14b6a8f |
5184 | add_stub(CC_STUB,jaddr,out,0,i,start+i*4+8,NOTTAKEN,0); |
57871462 |
5185 | } |
5186 | else { |
df4dc2b1 |
5187 | void *taken = NULL, *nottaken = NULL, *nottaken1 = NULL; |
57871462 |
5188 | do_cc(i,branch_regs[i].regmap,&adj,-1,0,invert); |
2573466a |
5189 | if(adj&&!invert) emit_addimm(cc,CLOCK_ADJUST(ccadj[i]+2-adj),cc); |
9f51b4b9 |
5190 | |
57871462 |
5191 | //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]); |
5192 | assert(s1l>=0); |
5193 | if(opcode[i]==4) // BEQ |
5194 | { |
5195 | if(s2l>=0) emit_cmp(s1l,s2l); |
5196 | else emit_test(s1l,s1l); |
5197 | if(invert){ |
df4dc2b1 |
5198 | nottaken=out; |
7c3a5182 |
5199 | emit_jne(DJT_1); |
57871462 |
5200 | }else{ |
643aeae3 |
5201 | add_to_linker(out,ba[i],internal); |
57871462 |
5202 | emit_jeq(0); |
5203 | } |
5204 | } |
5205 | if(opcode[i]==5) // BNE |
5206 | { |
5207 | if(s2l>=0) emit_cmp(s1l,s2l); |
5208 | else emit_test(s1l,s1l); |
5209 | if(invert){ |
df4dc2b1 |
5210 | nottaken=out; |
7c3a5182 |
5211 | emit_jeq(DJT_1); |
57871462 |
5212 | }else{ |
643aeae3 |
5213 | add_to_linker(out,ba[i],internal); |
57871462 |
5214 | emit_jne(0); |
5215 | } |
5216 | } |
5217 | if(opcode[i]==6) // BLEZ |
5218 | { |
5219 | emit_cmpimm(s1l,1); |
5220 | if(invert){ |
df4dc2b1 |
5221 | nottaken=out; |
7c3a5182 |
5222 | emit_jge(DJT_1); |
57871462 |
5223 | }else{ |
643aeae3 |
5224 | add_to_linker(out,ba[i],internal); |
57871462 |
5225 | emit_jl(0); |
5226 | } |
5227 | } |
5228 | if(opcode[i]==7) // BGTZ |
5229 | { |
5230 | emit_cmpimm(s1l,1); |
5231 | if(invert){ |
df4dc2b1 |
5232 | nottaken=out; |
7c3a5182 |
5233 | emit_jl(DJT_1); |
57871462 |
5234 | }else{ |
643aeae3 |
5235 | add_to_linker(out,ba[i],internal); |
57871462 |
5236 | emit_jge(0); |
5237 | } |
5238 | } |
5239 | if(invert) { |
df4dc2b1 |
5240 | if(taken) set_jump_target(taken, out); |
57871462 |
5241 | #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
5242 | if(match&&(!internal||!is_ds[(ba[i]-start)>>2])) { |
5243 | if(adj) { |
2573466a |
5244 | emit_addimm(cc,-CLOCK_ADJUST(adj),cc); |
643aeae3 |
5245 | add_to_linker(out,ba[i],internal); |
57871462 |
5246 | }else{ |
5247 | emit_addnop(13); |
643aeae3 |
5248 | add_to_linker(out,ba[i],internal*2); |
57871462 |
5249 | } |
5250 | emit_jmp(0); |
5251 | }else |
5252 | #endif |
5253 | { |
2573466a |
5254 | if(adj) emit_addimm(cc,-CLOCK_ADJUST(adj),cc); |
ad49de89 |
5255 | store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
5256 | load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
5257 | if(internal) |
5258 | assem_debug("branch: internal\n"); |
5259 | else |
5260 | assem_debug("branch: external\n"); |
5261 | if(internal&&is_ds[(ba[i]-start)>>2]) { |
5262 | ds_assemble_entry(i); |
5263 | } |
5264 | else { |
643aeae3 |
5265 | add_to_linker(out,ba[i],internal); |
57871462 |
5266 | emit_jmp(0); |
5267 | } |
5268 | } |
df4dc2b1 |
5269 | set_jump_target(nottaken, out); |
57871462 |
5270 | } |
5271 | |
df4dc2b1 |
5272 | if(nottaken1) set_jump_target(nottaken1, out); |
57871462 |
5273 | if(adj) { |
2573466a |
5274 | if(!invert) emit_addimm(cc,CLOCK_ADJUST(adj),cc); |
57871462 |
5275 | } |
5276 | } // (!unconditional) |
5277 | } // if(ooo) |
5278 | else |
5279 | { |
5280 | // In-order execution (branch first) |
5281 | //if(likely[i]) printf("IOL\n"); |
5282 | //else |
5283 | //printf("IOE\n"); |
df4dc2b1 |
5284 | void *taken = NULL, *nottaken = NULL, *nottaken1 = NULL; |
57871462 |
5285 | if(!unconditional&&!nop) { |
57871462 |
5286 | //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]); |
5287 | assert(s1l>=0); |
5288 | if((opcode[i]&0x2f)==4) // BEQ |
5289 | { |
5290 | if(s2l>=0) emit_cmp(s1l,s2l); |
5291 | else emit_test(s1l,s1l); |
df4dc2b1 |
5292 | nottaken=out; |
7c3a5182 |
5293 | emit_jne(DJT_2); |
57871462 |
5294 | } |
5295 | if((opcode[i]&0x2f)==5) // BNE |
5296 | { |
5297 | if(s2l>=0) emit_cmp(s1l,s2l); |
5298 | else emit_test(s1l,s1l); |
df4dc2b1 |
5299 | nottaken=out; |
7c3a5182 |
5300 | emit_jeq(DJT_2); |
57871462 |
5301 | } |
5302 | if((opcode[i]&0x2f)==6) // BLEZ |
5303 | { |
5304 | emit_cmpimm(s1l,1); |
df4dc2b1 |
5305 | nottaken=out; |
7c3a5182 |
5306 | emit_jge(DJT_2); |
57871462 |
5307 | } |
5308 | if((opcode[i]&0x2f)==7) // BGTZ |
5309 | { |
5310 | emit_cmpimm(s1l,1); |
df4dc2b1 |
5311 | nottaken=out; |
7c3a5182 |
5312 | emit_jl(DJT_2); |
57871462 |
5313 | } |
5314 | } // if(!unconditional) |
5315 | int adj; |
5316 | uint64_t ds_unneeded=branch_regs[i].u; |
57871462 |
5317 | ds_unneeded&=~((1LL<<rs1[i+1])|(1LL<<rs2[i+1])); |
57871462 |
5318 | ds_unneeded|=1; |
57871462 |
5319 | // branch taken |
5320 | if(!nop) { |
df4dc2b1 |
5321 | if(taken) set_jump_target(taken, out); |
57871462 |
5322 | assem_debug("1:\n"); |
ad49de89 |
5323 | wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,ds_unneeded); |
57871462 |
5324 | // load regs |
ad49de89 |
5325 | load_regs(regs[i].regmap,branch_regs[i].regmap,rs1[i+1],rs2[i+1]); |
57871462 |
5326 | address_generation(i+1,&branch_regs[i],0); |
ad49de89 |
5327 | load_regs(regs[i].regmap,branch_regs[i].regmap,CCREG,INVCP); |
57871462 |
5328 | ds_assemble(i+1,&branch_regs[i]); |
5329 | cc=get_reg(branch_regs[i].regmap,CCREG); |
5330 | if(cc==-1) { |
5331 | emit_loadreg(CCREG,cc=HOST_CCREG); |
5332 | // CHECK: Is the following instruction (fall thru) allocated ok? |
5333 | } |
5334 | assert(cc==HOST_CCREG); |
ad49de89 |
5335 | store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
5336 | do_cc(i,i_regmap,&adj,ba[i],TAKEN,0); |
5337 | assem_debug("cycle count (adj)\n"); |
2573466a |
5338 | if(adj) emit_addimm(cc,CLOCK_ADJUST(ccadj[i]+2-adj),cc); |
ad49de89 |
5339 | load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
5340 | if(internal) |
5341 | assem_debug("branch: internal\n"); |
5342 | else |
5343 | assem_debug("branch: external\n"); |
5344 | if(internal&&is_ds[(ba[i]-start)>>2]) { |
5345 | ds_assemble_entry(i); |
5346 | } |
5347 | else { |
643aeae3 |
5348 | add_to_linker(out,ba[i],internal); |
57871462 |
5349 | emit_jmp(0); |
5350 | } |
5351 | } |
5352 | // branch not taken |
57871462 |
5353 | if(!unconditional) { |
df4dc2b1 |
5354 | if(nottaken1) set_jump_target(nottaken1, out); |
5355 | set_jump_target(nottaken, out); |
57871462 |
5356 | assem_debug("2:\n"); |
5357 | if(!likely[i]) { |
ad49de89 |
5358 | wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,ds_unneeded); |
5359 | load_regs(regs[i].regmap,branch_regs[i].regmap,rs1[i+1],rs2[i+1]); |
57871462 |
5360 | address_generation(i+1,&branch_regs[i],0); |
ad49de89 |
5361 | load_regs(regs[i].regmap,branch_regs[i].regmap,CCREG,CCREG); |
57871462 |
5362 | ds_assemble(i+1,&branch_regs[i]); |
5363 | } |
5364 | cc=get_reg(branch_regs[i].regmap,CCREG); |
5365 | if(cc==-1&&!likely[i]) { |
5366 | // Cycle count isn't in a register, temporarily load it then write it out |
5367 | emit_loadreg(CCREG,HOST_CCREG); |
2573466a |
5368 | emit_addimm_and_set_flags(CLOCK_ADJUST(ccadj[i]+2),HOST_CCREG); |
b14b6a8f |
5369 | void *jaddr=out; |
57871462 |
5370 | emit_jns(0); |
b14b6a8f |
5371 | add_stub(CC_STUB,jaddr,out,0,i,start+i*4+8,NOTTAKEN,0); |
57871462 |
5372 | emit_storereg(CCREG,HOST_CCREG); |
5373 | } |
5374 | else{ |
5375 | cc=get_reg(i_regmap,CCREG); |
5376 | assert(cc==HOST_CCREG); |
2573466a |
5377 | emit_addimm_and_set_flags(CLOCK_ADJUST(ccadj[i]+2),cc); |
b14b6a8f |
5378 | void *jaddr=out; |
57871462 |
5379 | emit_jns(0); |
b14b6a8f |
5380 | add_stub(CC_STUB,jaddr,out,0,i,start+i*4+8,likely[i]?NULLDS:NOTTAKEN,0); |
57871462 |
5381 | } |
5382 | } |
5383 | } |
5384 | } |
5385 | |
7c3a5182 |
5386 | static void sjump_assemble(int i,struct regstat *i_regs) |
57871462 |
5387 | { |
5388 | signed char *i_regmap=i_regs->regmap; |
5389 | int cc; |
5390 | int match; |
ad49de89 |
5391 | match=match_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
5392 | assem_debug("smatch=%d\n",match); |
ad49de89 |
5393 | int s1l; |
57871462 |
5394 | int unconditional=0,nevertaken=0; |
57871462 |
5395 | int invert=0; |
ad49de89 |
5396 | int internal=internal_branch(ba[i]); |
57871462 |
5397 | if(i==(ba[i]-start)>>2) assem_debug("idle loop\n"); |
57871462 |
5398 | if(!match) invert=1; |
5399 | #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
5400 | if(i>(ba[i]-start)>>2) invert=1; |
5401 | #endif |
3968e69e |
5402 | #ifdef __aarch64__ |
5403 | invert=1; // because of near cond. branches |
5404 | #endif |
57871462 |
5405 | |
5406 | //if(opcode2[i]>=0x10) return; // FIXME (BxxZAL) |
df894a3a |
5407 | //assert(opcode2[i]<0x10||rs1[i]==0); // FIXME (BxxZAL) |
57871462 |
5408 | |
e1190b87 |
5409 | if(ooo[i]) { |
57871462 |
5410 | s1l=get_reg(branch_regs[i].regmap,rs1[i]); |
57871462 |
5411 | } |
5412 | else { |
5413 | s1l=get_reg(i_regmap,rs1[i]); |
57871462 |
5414 | } |
5415 | if(rs1[i]==0) |
5416 | { |
5417 | if(opcode2[i]&1) unconditional=1; |
5418 | else nevertaken=1; |
5419 | // These are never taken (r0 is never less than zero) |
5420 | //assert(opcode2[i]!=0); |
5421 | //assert(opcode2[i]!=2); |
5422 | //assert(opcode2[i]!=0x10); |
5423 | //assert(opcode2[i]!=0x12); |
5424 | } |
57871462 |
5425 | |
e1190b87 |
5426 | if(ooo[i]) { |
57871462 |
5427 | // Out of order execution (delay slot first) |
5428 | //printf("OOOE\n"); |
5429 | address_generation(i+1,i_regs,regs[i].regmap_entry); |
5430 | ds_assemble(i+1,i_regs); |
5431 | int adj; |
5432 | uint64_t bc_unneeded=branch_regs[i].u; |
57871462 |
5433 | bc_unneeded&=~((1LL<<rs1[i])|(1LL<<rs2[i])); |
57871462 |
5434 | bc_unneeded|=1; |
ad49de89 |
5435 | wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,bc_unneeded); |
5436 | load_regs(regs[i].regmap,branch_regs[i].regmap,rs1[i],rs1[i]); |
5437 | load_regs(regs[i].regmap,branch_regs[i].regmap,CCREG,CCREG); |
57871462 |
5438 | if(rt1[i]==31) { |
5439 | int rt,return_address; |
57871462 |
5440 | rt=get_reg(branch_regs[i].regmap,31); |
5441 | 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]); |
5442 | if(rt>=0) { |
5443 | // Save the PC even if the branch is not taken |
5444 | return_address=start+i*4+8; |
5445 | emit_movimm(return_address,rt); // PC into link register |
5446 | #ifdef IMM_PREFETCH |
df4dc2b1 |
5447 | if(!nevertaken) emit_prefetch(hash_table_get(return_address)); |
57871462 |
5448 | #endif |
5449 | } |
5450 | } |
5451 | cc=get_reg(branch_regs[i].regmap,CCREG); |
5452 | assert(cc==HOST_CCREG); |
9f51b4b9 |
5453 | if(unconditional) |
ad49de89 |
5454 | store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
5455 | //do_cc(i,branch_regs[i].regmap,&adj,unconditional?ba[i]:-1,unconditional); |
5456 | assem_debug("cycle count (adj)\n"); |
5457 | if(unconditional) { |
5458 | do_cc(i,branch_regs[i].regmap,&adj,ba[i],TAKEN,0); |
5459 | if(i!=(ba[i]-start)>>2 || source[i+1]!=0) { |
2573466a |
5460 | if(adj) emit_addimm(cc,CLOCK_ADJUST(ccadj[i]+2-adj),cc); |
ad49de89 |
5461 | load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
5462 | if(internal) |
5463 | assem_debug("branch: internal\n"); |
5464 | else |
5465 | assem_debug("branch: external\n"); |
5466 | if(internal&&is_ds[(ba[i]-start)>>2]) { |
5467 | ds_assemble_entry(i); |
5468 | } |
5469 | else { |
643aeae3 |
5470 | add_to_linker(out,ba[i],internal); |
57871462 |
5471 | emit_jmp(0); |
5472 | } |
5473 | #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
5474 | if(((u_int)out)&7) emit_addnop(0); |
5475 | #endif |
5476 | } |
5477 | } |
5478 | else if(nevertaken) { |
2573466a |
5479 | emit_addimm_and_set_flags(CLOCK_ADJUST(ccadj[i]+2),cc); |
b14b6a8f |
5480 | void *jaddr=out; |
57871462 |
5481 | emit_jns(0); |
b14b6a8f |
5482 | add_stub(CC_STUB,jaddr,out,0,i,start+i*4+8,NOTTAKEN,0); |
57871462 |
5483 | } |
5484 | else { |
df4dc2b1 |
5485 | void *nottaken = NULL; |
57871462 |
5486 | do_cc(i,branch_regs[i].regmap,&adj,-1,0,invert); |
2573466a |
5487 | if(adj&&!invert) emit_addimm(cc,CLOCK_ADJUST(ccadj[i]+2-adj),cc); |
57871462 |
5488 | { |
5489 | assert(s1l>=0); |
df894a3a |
5490 | if((opcode2[i]&0xf)==0) // BLTZ/BLTZAL |
57871462 |
5491 | { |
5492 | emit_test(s1l,s1l); |
5493 | if(invert){ |
df4dc2b1 |
5494 | nottaken=out; |
7c3a5182 |
5495 | emit_jns(DJT_1); |
57871462 |
5496 | }else{ |
643aeae3 |
5497 | add_to_linker(out,ba[i],internal); |
57871462 |
5498 | emit_js(0); |
5499 | } |
5500 | } |
df894a3a |
5501 | if((opcode2[i]&0xf)==1) // BGEZ/BLTZAL |
57871462 |
5502 | { |
5503 | emit_test(s1l,s1l); |
5504 | if(invert){ |
df4dc2b1 |
5505 | nottaken=out; |
7c3a5182 |
5506 | emit_js(DJT_1); |
57871462 |
5507 | }else{ |
643aeae3 |
5508 | add_to_linker(out,ba[i],internal); |
57871462 |
5509 | emit_jns(0); |
5510 | } |
5511 | } |
ad49de89 |
5512 | } |
9f51b4b9 |
5513 | |
57871462 |
5514 | if(invert) { |
5515 | #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
5516 | if(match&&(!internal||!is_ds[(ba[i]-start)>>2])) { |
5517 | if(adj) { |
2573466a |
5518 | emit_addimm(cc,-CLOCK_ADJUST(adj),cc); |
643aeae3 |
5519 | add_to_linker(out,ba[i],internal); |
57871462 |
5520 | }else{ |
5521 | emit_addnop(13); |
643aeae3 |
5522 | add_to_linker(out,ba[i],internal*2); |
57871462 |
5523 | } |
5524 | emit_jmp(0); |
5525 | }else |
5526 | #endif |
5527 | { |
2573466a |
5528 | if(adj) emit_addimm(cc,-CLOCK_ADJUST(adj),cc); |
ad49de89 |
5529 | store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
5530 | load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
5531 | if(internal) |
5532 | assem_debug("branch: internal\n"); |
5533 | else |
5534 | assem_debug("branch: external\n"); |
5535 | if(internal&&is_ds[(ba[i]-start)>>2]) { |
5536 | ds_assemble_entry(i); |
5537 | } |
5538 | else { |
643aeae3 |
5539 | add_to_linker(out,ba[i],internal); |
57871462 |
5540 | emit_jmp(0); |
5541 | } |
5542 | } |
df4dc2b1 |
5543 | set_jump_target(nottaken, out); |
57871462 |
5544 | } |
5545 | |
5546 | if(adj) { |
2573466a |
5547 | if(!invert) emit_addimm(cc,CLOCK_ADJUST(adj),cc); |
57871462 |
5548 | } |
5549 | } // (!unconditional) |
5550 | } // if(ooo) |
5551 | else |
5552 | { |
5553 | // In-order execution (branch first) |
5554 | //printf("IOE\n"); |
df4dc2b1 |
5555 | void *nottaken = NULL; |
a6491170 |
5556 | if(rt1[i]==31) { |
5557 | int rt,return_address; |
a6491170 |
5558 | rt=get_reg(branch_regs[i].regmap,31); |
5559 | if(rt>=0) { |
5560 | // Save the PC even if the branch is not taken |
5561 | return_address=start+i*4+8; |
5562 | emit_movimm(return_address,rt); // PC into link register |
5563 | #ifdef IMM_PREFETCH |
df4dc2b1 |
5564 | emit_prefetch(hash_table_get(return_address)); |
a6491170 |
5565 | #endif |
5566 | } |
5567 | } |
57871462 |
5568 | if(!unconditional) { |
5569 | //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]); |
57871462 |
5570 | assert(s1l>=0); |
a6491170 |
5571 | if((opcode2[i]&0x0d)==0) // BLTZ/BLTZL/BLTZAL/BLTZALL |
57871462 |
5572 | { |
5573 | emit_test(s1l,s1l); |
df4dc2b1 |
5574 | nottaken=out; |
7c3a5182 |
5575 | emit_jns(DJT_1); |
57871462 |
5576 | } |
a6491170 |
5577 | if((opcode2[i]&0x0d)==1) // BGEZ/BGEZL/BGEZAL/BGEZALL |
57871462 |
5578 | { |
5579 | emit_test(s1l,s1l); |
df4dc2b1 |
5580 | nottaken=out; |
7c3a5182 |
5581 | emit_js(DJT_1); |
57871462 |
5582 | } |
57871462 |
5583 | } // if(!unconditional) |
5584 | int adj; |
5585 | uint64_t ds_unneeded=branch_regs[i].u; |
57871462 |
5586 | ds_unneeded&=~((1LL<<rs1[i+1])|(1LL<<rs2[i+1])); |
57871462 |
5587 | ds_unneeded|=1; |
57871462 |
5588 | // branch taken |
5589 | if(!nevertaken) { |
5590 | //assem_debug("1:\n"); |
ad49de89 |
5591 | wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,ds_unneeded); |
57871462 |
5592 | // load regs |
ad49de89 |
5593 | load_regs(regs[i].regmap,branch_regs[i].regmap,rs1[i+1],rs2[i+1]); |
57871462 |
5594 | address_generation(i+1,&branch_regs[i],0); |
ad49de89 |
5595 | load_regs(regs[i].regmap,branch_regs[i].regmap,CCREG,INVCP); |
57871462 |
5596 | ds_assemble(i+1,&branch_regs[i]); |
5597 | cc=get_reg(branch_regs[i].regmap,CCREG); |
5598 | if(cc==-1) { |
5599 | emit_loadreg(CCREG,cc=HOST_CCREG); |
5600 | // CHECK: Is the following instruction (fall thru) allocated ok? |
5601 | } |
5602 | assert(cc==HOST_CCREG); |
ad49de89 |
5603 | store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
5604 | do_cc(i,i_regmap,&adj,ba[i],TAKEN,0); |
5605 | assem_debug("cycle count (adj)\n"); |
2573466a |
5606 | if(adj) emit_addimm(cc,CLOCK_ADJUST(ccadj[i]+2-adj),cc); |
ad49de89 |
5607 | load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
5608 | if(internal) |
5609 | assem_debug("branch: internal\n"); |
5610 | else |
5611 | assem_debug("branch: external\n"); |
5612 | if(internal&&is_ds[(ba[i]-start)>>2]) { |
5613 | ds_assemble_entry(i); |
5614 | } |
5615 | else { |
643aeae3 |
5616 | add_to_linker(out,ba[i],internal); |
57871462 |
5617 | emit_jmp(0); |
5618 | } |
5619 | } |
5620 | // branch not taken |
57871462 |
5621 | if(!unconditional) { |
df4dc2b1 |
5622 | set_jump_target(nottaken, out); |
57871462 |
5623 | assem_debug("1:\n"); |
5624 | if(!likely[i]) { |
ad49de89 |
5625 | wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,ds_unneeded); |
5626 | load_regs(regs[i].regmap,branch_regs[i].regmap,rs1[i+1],rs2[i+1]); |
57871462 |
5627 | address_generation(i+1,&branch_regs[i],0); |
ad49de89 |
5628 | load_regs(regs[i].regmap,branch_regs[i].regmap,CCREG,CCREG); |
57871462 |
5629 | ds_assemble(i+1,&branch_regs[i]); |
5630 | } |
5631 | cc=get_reg(branch_regs[i].regmap,CCREG); |
5632 | if(cc==-1&&!likely[i]) { |
5633 | // Cycle count isn't in a register, temporarily load it then write it out |
5634 | emit_loadreg(CCREG,HOST_CCREG); |
2573466a |
5635 | emit_addimm_and_set_flags(CLOCK_ADJUST(ccadj[i]+2),HOST_CCREG); |
b14b6a8f |
5636 | void *jaddr=out; |
57871462 |
5637 | emit_jns(0); |
b14b6a8f |
5638 | add_stub(CC_STUB,jaddr,out,0,i,start+i*4+8,NOTTAKEN,0); |
57871462 |
5639 | emit_storereg(CCREG,HOST_CCREG); |
5640 | } |
5641 | else{ |
5642 | cc=get_reg(i_regmap,CCREG); |
5643 | assert(cc==HOST_CCREG); |
2573466a |
5644 | emit_addimm_and_set_flags(CLOCK_ADJUST(ccadj[i]+2),cc); |
b14b6a8f |
5645 | void *jaddr=out; |
57871462 |
5646 | emit_jns(0); |
b14b6a8f |
5647 | add_stub(CC_STUB,jaddr,out,0,i,start+i*4+8,likely[i]?NULLDS:NOTTAKEN,0); |
57871462 |
5648 | } |
5649 | } |
5650 | } |
5651 | } |
5652 | |
5653 | static void pagespan_assemble(int i,struct regstat *i_regs) |
5654 | { |
5655 | int s1l=get_reg(i_regs->regmap,rs1[i]); |
57871462 |
5656 | int s2l=get_reg(i_regs->regmap,rs2[i]); |
df4dc2b1 |
5657 | void *taken = NULL; |
5658 | void *nottaken = NULL; |
57871462 |
5659 | int unconditional=0; |
5660 | if(rs1[i]==0) |
5661 | { |
ad49de89 |
5662 | s1l=s2l; |
5663 | s2l=-1; |
57871462 |
5664 | } |
5665 | else if(rs2[i]==0) |
5666 | { |
ad49de89 |
5667 | s2l=-1; |
57871462 |
5668 | } |
5669 | int hr=0; |
581335b0 |
5670 | int addr=-1,alt=-1,ntaddr=-1; |
57871462 |
5671 | if(i_regs->regmap[HOST_BTREG]<0) {addr=HOST_BTREG;} |
5672 | else { |
5673 | while(hr<HOST_REGS) |
5674 | { |
5675 | if(hr!=EXCLUDE_REG && hr!=HOST_CCREG && |
5676 | (i_regs->regmap[hr]&63)!=rs1[i] && |
5677 | (i_regs->regmap[hr]&63)!=rs2[i] ) |
5678 | { |
5679 | addr=hr++;break; |
5680 | } |
5681 | hr++; |
5682 | } |
5683 | } |
5684 | while(hr<HOST_REGS) |
5685 | { |
5686 | if(hr!=EXCLUDE_REG && hr!=HOST_CCREG && hr!=HOST_BTREG && |
5687 | (i_regs->regmap[hr]&63)!=rs1[i] && |
5688 | (i_regs->regmap[hr]&63)!=rs2[i] ) |
5689 | { |
5690 | alt=hr++;break; |
5691 | } |
5692 | hr++; |
5693 | } |
5694 | if((opcode[i]&0x2E)==6) // BLEZ/BGTZ needs another register |
5695 | { |
5696 | while(hr<HOST_REGS) |
5697 | { |
5698 | if(hr!=EXCLUDE_REG && hr!=HOST_CCREG && hr!=HOST_BTREG && |
5699 | (i_regs->regmap[hr]&63)!=rs1[i] && |
5700 | (i_regs->regmap[hr]&63)!=rs2[i] ) |
5701 | { |
5702 | ntaddr=hr;break; |
5703 | } |
5704 | hr++; |
5705 | } |
5706 | } |
5707 | assert(hr<HOST_REGS); |
5708 | if((opcode[i]&0x2e)==4||opcode[i]==0x11) { // BEQ/BNE/BEQL/BNEL/BC1 |
ad49de89 |
5709 | load_regs(regs[i].regmap_entry,regs[i].regmap,CCREG,CCREG); |
57871462 |
5710 | } |
2573466a |
5711 | emit_addimm(HOST_CCREG,CLOCK_ADJUST(ccadj[i]+2),HOST_CCREG); |
57871462 |
5712 | if(opcode[i]==2) // J |
5713 | { |
5714 | unconditional=1; |
5715 | } |
5716 | if(opcode[i]==3) // JAL |
5717 | { |
5718 | // TODO: mini_ht |
5719 | int rt=get_reg(i_regs->regmap,31); |
5720 | emit_movimm(start+i*4+8,rt); |
5721 | unconditional=1; |
5722 | } |
5723 | if(opcode[i]==0&&(opcode2[i]&0x3E)==8) // JR/JALR |
5724 | { |
5725 | emit_mov(s1l,addr); |
5726 | if(opcode2[i]==9) // JALR |
5727 | { |
5067f341 |
5728 | int rt=get_reg(i_regs->regmap,rt1[i]); |
57871462 |
5729 | emit_movimm(start+i*4+8,rt); |
5730 | } |
5731 | } |
5732 | if((opcode[i]&0x3f)==4) // BEQ |
5733 | { |
5734 | if(rs1[i]==rs2[i]) |
5735 | { |
5736 | unconditional=1; |
5737 | } |
5738 | else |
5739 | #ifdef HAVE_CMOV_IMM |
ad49de89 |
5740 | if(1) { |
57871462 |
5741 | if(s2l>=0) emit_cmp(s1l,s2l); |
5742 | else emit_test(s1l,s1l); |
5743 | emit_cmov2imm_e_ne_compact(ba[i],start+i*4+8,addr); |
5744 | } |
5745 | else |
5746 | #endif |
5747 | { |
5748 | assert(s1l>=0); |
5749 | emit_mov2imm_compact(ba[i],addr,start+i*4+8,alt); |
57871462 |
5750 | if(s2l>=0) emit_cmp(s1l,s2l); |
5751 | else emit_test(s1l,s1l); |
5752 | emit_cmovne_reg(alt,addr); |
5753 | } |
5754 | } |
5755 | if((opcode[i]&0x3f)==5) // BNE |
5756 | { |
5757 | #ifdef HAVE_CMOV_IMM |
ad49de89 |
5758 | if(s2l>=0) emit_cmp(s1l,s2l); |
5759 | else emit_test(s1l,s1l); |
5760 | emit_cmov2imm_e_ne_compact(start+i*4+8,ba[i],addr); |
5761 | #else |
5762 | assert(s1l>=0); |
5763 | emit_mov2imm_compact(start+i*4+8,addr,ba[i],alt); |
5764 | if(s2l>=0) emit_cmp(s1l,s2l); |
5765 | else emit_test(s1l,s1l); |
5766 | emit_cmovne_reg(alt,addr); |
57871462 |
5767 | #endif |
57871462 |
5768 | } |
5769 | if((opcode[i]&0x3f)==0x14) // BEQL |
5770 | { |
57871462 |
5771 | if(s2l>=0) emit_cmp(s1l,s2l); |
5772 | else emit_test(s1l,s1l); |
df4dc2b1 |
5773 | if(nottaken) set_jump_target(nottaken, out); |
5774 | nottaken=out; |
57871462 |
5775 | emit_jne(0); |
5776 | } |
5777 | if((opcode[i]&0x3f)==0x15) // BNEL |
5778 | { |
57871462 |
5779 | if(s2l>=0) emit_cmp(s1l,s2l); |
5780 | else emit_test(s1l,s1l); |
df4dc2b1 |
5781 | nottaken=out; |
57871462 |
5782 | emit_jeq(0); |
df4dc2b1 |
5783 | if(taken) set_jump_target(taken, out); |
57871462 |
5784 | } |
5785 | if((opcode[i]&0x3f)==6) // BLEZ |
5786 | { |
5787 | emit_mov2imm_compact(ba[i],alt,start+i*4+8,addr); |
5788 | emit_cmpimm(s1l,1); |
57871462 |
5789 | emit_cmovl_reg(alt,addr); |
57871462 |
5790 | } |
5791 | if((opcode[i]&0x3f)==7) // BGTZ |
5792 | { |
5793 | emit_mov2imm_compact(ba[i],addr,start+i*4+8,ntaddr); |
5794 | emit_cmpimm(s1l,1); |
57871462 |
5795 | emit_cmovl_reg(ntaddr,addr); |
57871462 |
5796 | } |
5797 | if((opcode[i]&0x3f)==0x16) // BLEZL |
5798 | { |
5799 | assert((opcode[i]&0x3f)!=0x16); |
5800 | } |
5801 | if((opcode[i]&0x3f)==0x17) // BGTZL |
5802 | { |
5803 | assert((opcode[i]&0x3f)!=0x17); |
5804 | } |
5805 | assert(opcode[i]!=1); // BLTZ/BGEZ |
5806 | |
5807 | //FIXME: Check CSREG |
5808 | if(opcode[i]==0x11 && opcode2[i]==0x08 ) { |
5809 | if((source[i]&0x30000)==0) // BC1F |
5810 | { |
5811 | emit_mov2imm_compact(ba[i],addr,start+i*4+8,alt); |
5812 | emit_testimm(s1l,0x800000); |
5813 | emit_cmovne_reg(alt,addr); |
5814 | } |
5815 | if((source[i]&0x30000)==0x10000) // BC1T |
5816 | { |
5817 | emit_mov2imm_compact(ba[i],alt,start+i*4+8,addr); |
5818 | emit_testimm(s1l,0x800000); |
5819 | emit_cmovne_reg(alt,addr); |
5820 | } |
5821 | if((source[i]&0x30000)==0x20000) // BC1FL |
5822 | { |
5823 | emit_testimm(s1l,0x800000); |
df4dc2b1 |
5824 | nottaken=out; |
57871462 |
5825 | emit_jne(0); |
5826 | } |
5827 | if((source[i]&0x30000)==0x30000) // BC1TL |
5828 | { |
5829 | emit_testimm(s1l,0x800000); |
df4dc2b1 |
5830 | nottaken=out; |
57871462 |
5831 | emit_jeq(0); |
5832 | } |
5833 | } |
5834 | |
5835 | assert(i_regs->regmap[HOST_CCREG]==CCREG); |
ad49de89 |
5836 | wb_dirtys(regs[i].regmap,regs[i].dirty); |
57871462 |
5837 | if(likely[i]||unconditional) |
5838 | { |
5839 | emit_movimm(ba[i],HOST_BTREG); |
5840 | } |
5841 | else if(addr!=HOST_BTREG) |
5842 | { |
5843 | emit_mov(addr,HOST_BTREG); |
5844 | } |
5845 | void *branch_addr=out; |
5846 | emit_jmp(0); |
5847 | int target_addr=start+i*4+5; |
5848 | void *stub=out; |
5849 | void *compiled_target_addr=check_addr(target_addr); |
643aeae3 |
5850 | emit_extjump_ds(branch_addr, target_addr); |
57871462 |
5851 | if(compiled_target_addr) { |
df4dc2b1 |
5852 | set_jump_target(branch_addr, compiled_target_addr); |
57871462 |
5853 | add_link(target_addr,stub); |
5854 | } |
df4dc2b1 |
5855 | else set_jump_target(branch_addr, stub); |
57871462 |
5856 | if(likely[i]) { |
5857 | // Not-taken path |
df4dc2b1 |
5858 | set_jump_target(nottaken, out); |
ad49de89 |
5859 | wb_dirtys(regs[i].regmap,regs[i].dirty); |
57871462 |
5860 | void *branch_addr=out; |
5861 | emit_jmp(0); |
5862 | int target_addr=start+i*4+8; |
5863 | void *stub=out; |
5864 | void *compiled_target_addr=check_addr(target_addr); |
643aeae3 |
5865 | emit_extjump_ds(branch_addr, target_addr); |
57871462 |
5866 | if(compiled_target_addr) { |
df4dc2b1 |
5867 | set_jump_target(branch_addr, compiled_target_addr); |
57871462 |
5868 | add_link(target_addr,stub); |
5869 | } |
df4dc2b1 |
5870 | else set_jump_target(branch_addr, stub); |
57871462 |
5871 | } |
5872 | } |
5873 | |
5874 | // Assemble the delay slot for the above |
5875 | static void pagespan_ds() |
5876 | { |
5877 | assem_debug("initial delay slot:\n"); |
5878 | u_int vaddr=start+1; |
94d23bb9 |
5879 | u_int page=get_page(vaddr); |
5880 | u_int vpage=get_vpage(vaddr); |
57871462 |
5881 | ll_add(jump_dirty+vpage,vaddr,(void *)out); |
5882 | do_dirty_stub_ds(); |
5883 | ll_add(jump_in+page,vaddr,(void *)out); |
5884 | assert(regs[0].regmap_entry[HOST_CCREG]==CCREG); |
5885 | if(regs[0].regmap[HOST_CCREG]!=CCREG) |
ad49de89 |
5886 | wb_register(CCREG,regs[0].regmap_entry,regs[0].wasdirty); |
57871462 |
5887 | if(regs[0].regmap[HOST_BTREG]!=BTREG) |
643aeae3 |
5888 | emit_writeword(HOST_BTREG,&branch_target); |
ad49de89 |
5889 | load_regs(regs[0].regmap_entry,regs[0].regmap,rs1[0],rs2[0]); |
57871462 |
5890 | address_generation(0,®s[0],regs[0].regmap_entry); |
b9b61529 |
5891 | if(itype[0]==STORE||itype[0]==STORELR||(opcode[0]&0x3b)==0x39||(opcode[0]&0x3b)==0x3a) |
ad49de89 |
5892 | load_regs(regs[0].regmap_entry,regs[0].regmap,INVCP,INVCP); |
57871462 |
5893 | is_delayslot=0; |
5894 | switch(itype[0]) { |
5895 | case ALU: |
5896 | alu_assemble(0,®s[0]);break; |
5897 | case IMM16: |
5898 | imm16_assemble(0,®s[0]);break; |
5899 | case SHIFT: |
5900 | shift_assemble(0,®s[0]);break; |
5901 | case SHIFTIMM: |
5902 | shiftimm_assemble(0,®s[0]);break; |
5903 | case LOAD: |
5904 | load_assemble(0,®s[0]);break; |
5905 | case LOADLR: |
5906 | loadlr_assemble(0,®s[0]);break; |
5907 | case STORE: |
5908 | store_assemble(0,®s[0]);break; |
5909 | case STORELR: |
5910 | storelr_assemble(0,®s[0]);break; |
5911 | case COP0: |
5912 | cop0_assemble(0,®s[0]);break; |
5913 | case COP1: |
5914 | cop1_assemble(0,®s[0]);break; |
5915 | case C1LS: |
5916 | c1ls_assemble(0,®s[0]);break; |
b9b61529 |
5917 | case COP2: |
5918 | cop2_assemble(0,®s[0]);break; |
5919 | case C2LS: |
5920 | c2ls_assemble(0,®s[0]);break; |
5921 | case C2OP: |
5922 | c2op_assemble(0,®s[0]);break; |
57871462 |
5923 | case MULTDIV: |
5924 | multdiv_assemble(0,®s[0]);break; |
5925 | case MOV: |
5926 | mov_assemble(0,®s[0]);break; |
5927 | case SYSCALL: |
7139f3c8 |
5928 | case HLECALL: |
1e973cb0 |
5929 | case INTCALL: |
57871462 |
5930 | case SPAN: |
5931 | case UJUMP: |
5932 | case RJUMP: |
5933 | case CJUMP: |
5934 | case SJUMP: |
c43b5311 |
5935 | SysPrintf("Jump in the delay slot. This is probably a bug.\n"); |
57871462 |
5936 | } |
5937 | int btaddr=get_reg(regs[0].regmap,BTREG); |
5938 | if(btaddr<0) { |
5939 | btaddr=get_reg(regs[0].regmap,-1); |
643aeae3 |
5940 | emit_readword(&branch_target,btaddr); |
57871462 |
5941 | } |
5942 | assert(btaddr!=HOST_CCREG); |
5943 | if(regs[0].regmap[HOST_CCREG]!=CCREG) emit_loadreg(CCREG,HOST_CCREG); |
5944 | #ifdef HOST_IMM8 |
d1e4ebd9 |
5945 | host_tempreg_acquire(); |
57871462 |
5946 | emit_movimm(start+4,HOST_TEMPREG); |
5947 | emit_cmp(btaddr,HOST_TEMPREG); |
d1e4ebd9 |
5948 | host_tempreg_release(); |
57871462 |
5949 | #else |
5950 | emit_cmpimm(btaddr,start+4); |
5951 | #endif |
df4dc2b1 |
5952 | void *branch = out; |
57871462 |
5953 | emit_jeq(0); |
ad49de89 |
5954 | store_regs_bt(regs[0].regmap,regs[0].dirty,-1); |
d1e4ebd9 |
5955 | do_jump_vaddr(btaddr); |
df4dc2b1 |
5956 | set_jump_target(branch, out); |
ad49de89 |
5957 | store_regs_bt(regs[0].regmap,regs[0].dirty,start+4); |
5958 | load_regs_bt(regs[0].regmap,regs[0].dirty,start+4); |
57871462 |
5959 | } |
5960 | |
5961 | // Basic liveness analysis for MIPS registers |
5962 | void unneeded_registers(int istart,int iend,int r) |
5963 | { |
5964 | int i; |
00fa9369 |
5965 | uint64_t u,gte_u,b,gte_b; |
5966 | uint64_t temp_u,temp_gte_u=0; |
0ff8c62c |
5967 | uint64_t gte_u_unknown=0; |
d62c125a |
5968 | if (HACK_ENABLED(NDHACK_GTE_UNNEEDED)) |
0ff8c62c |
5969 | gte_u_unknown=~0ll; |
57871462 |
5970 | if(iend==slen-1) { |
00fa9369 |
5971 | u=1; |
0ff8c62c |
5972 | gte_u=gte_u_unknown; |
57871462 |
5973 | }else{ |
00fa9369 |
5974 | //u=unneeded_reg[iend+1]; |
5975 | u=1; |
0ff8c62c |
5976 | gte_u=gte_unneeded[iend+1]; |
57871462 |
5977 | } |
bedfea38 |
5978 | |
57871462 |
5979 | for (i=iend;i>=istart;i--) |
5980 | { |
5981 | //printf("unneeded registers i=%d (%d,%d) r=%d\n",i,istart,iend,r); |
ad49de89 |
5982 | if(itype[i]==RJUMP||itype[i]==UJUMP||itype[i]==CJUMP||itype[i]==SJUMP) |
57871462 |
5983 | { |
5984 | // If subroutine call, flag return address as a possible branch target |
5985 | if(rt1[i]==31 && i<slen-2) bt[i+2]=1; |
9f51b4b9 |
5986 | |
57871462 |
5987 | if(ba[i]<start || ba[i]>=(start+slen*4)) |
5988 | { |
5989 | // Branch out of this block, flush all regs |
5990 | u=1; |
0ff8c62c |
5991 | gte_u=gte_u_unknown; |
57871462 |
5992 | branch_unneeded_reg[i]=u; |
57871462 |
5993 | // Merge in delay slot |
57871462 |
5994 | u|=(1LL<<rt1[i+1])|(1LL<<rt2[i+1]); |
57871462 |
5995 | u&=~((1LL<<rs1[i+1])|(1LL<<rs2[i+1])); |
00fa9369 |
5996 | u|=1; |
bedfea38 |
5997 | gte_u|=gte_rt[i+1]; |
5998 | gte_u&=~gte_rs[i+1]; |
57871462 |
5999 | // If branch is "likely" (and conditional) |
6000 | // then we skip the delay slot on the fall-thru path |
6001 | if(likely[i]) { |
6002 | if(i<slen-1) { |
6003 | u&=unneeded_reg[i+2]; |
bedfea38 |
6004 | gte_u&=gte_unneeded[i+2]; |
57871462 |
6005 | } |
6006 | else |
6007 | { |
6008 | u=1; |
0ff8c62c |
6009 | gte_u=gte_u_unknown; |
57871462 |
6010 | } |
6011 | } |
6012 | } |
6013 | else |
6014 | { |
6015 | // Internal branch, flag target |
6016 | bt[(ba[i]-start)>>2]=1; |
6017 | if(ba[i]<=start+i*4) { |
6018 | // Backward branch |
07cd0bc4 |
6019 | if(is_ujump(i)) |
57871462 |
6020 | { |
6021 | // Unconditional branch |
00fa9369 |
6022 | temp_u=1; |
bedfea38 |
6023 | temp_gte_u=0; |
57871462 |
6024 | } else { |
6025 | // Conditional branch (not taken case) |
6026 | temp_u=unneeded_reg[i+2]; |
bedfea38 |
6027 | temp_gte_u&=gte_unneeded[i+2]; |
57871462 |
6028 | } |
6029 | // Merge in delay slot |
57871462 |
6030 | temp_u|=(1LL<<rt1[i+1])|(1LL<<rt2[i+1]); |
57871462 |
6031 | temp_u&=~((1LL<<rs1[i+1])|(1LL<<rs2[i+1])); |
00fa9369 |
6032 | temp_u|=1; |
bedfea38 |
6033 | temp_gte_u|=gte_rt[i+1]; |
6034 | temp_gte_u&=~gte_rs[i+1]; |
57871462 |
6035 | // If branch is "likely" (and conditional) |
6036 | // then we skip the delay slot on the fall-thru path |
6037 | if(likely[i]) { |
6038 | if(i<slen-1) { |
6039 | temp_u&=unneeded_reg[i+2]; |
bedfea38 |
6040 | temp_gte_u&=gte_unneeded[i+2]; |
57871462 |
6041 | } |
6042 | else |
6043 | { |
6044 | temp_u=1; |
0ff8c62c |
6045 | temp_gte_u=gte_u_unknown; |
57871462 |
6046 | } |
6047 | } |
57871462 |
6048 | temp_u|=(1LL<<rt1[i])|(1LL<<rt2[i]); |
57871462 |
6049 | temp_u&=~((1LL<<rs1[i])|(1LL<<rs2[i])); |
00fa9369 |
6050 | temp_u|=1; |
bedfea38 |
6051 | temp_gte_u|=gte_rt[i]; |
6052 | temp_gte_u&=~gte_rs[i]; |
57871462 |
6053 | unneeded_reg[i]=temp_u; |
bedfea38 |
6054 | gte_unneeded[i]=temp_gte_u; |
57871462 |
6055 | // Only go three levels deep. This recursion can take an |
6056 | // excessive amount of time if there are a lot of nested loops. |
6057 | if(r<2) { |
6058 | unneeded_registers((ba[i]-start)>>2,i-1,r+1); |
6059 | }else{ |
6060 | unneeded_reg[(ba[i]-start)>>2]=1; |
0ff8c62c |
6061 | gte_unneeded[(ba[i]-start)>>2]=gte_u_unknown; |
57871462 |
6062 | } |
6063 | } /*else*/ if(1) { |
07cd0bc4 |
6064 | if (is_ujump(i)) |
57871462 |
6065 | { |
6066 | // Unconditional branch |
6067 | u=unneeded_reg[(ba[i]-start)>>2]; |
bedfea38 |
6068 | gte_u=gte_unneeded[(ba[i]-start)>>2]; |
57871462 |
6069 | branch_unneeded_reg[i]=u; |
57871462 |
6070 | // Merge in delay slot |
57871462 |
6071 | u|=(1LL<<rt1[i+1])|(1LL<<rt2[i+1]); |
57871462 |
6072 | u&=~((1LL<<rs1[i+1])|(1LL<<rs2[i+1])); |
00fa9369 |
6073 | u|=1; |
bedfea38 |
6074 | gte_u|=gte_rt[i+1]; |
6075 | gte_u&=~gte_rs[i+1]; |
57871462 |
6076 | } else { |
6077 | // Conditional branch |
6078 | b=unneeded_reg[(ba[i]-start)>>2]; |
00fa9369 |
6079 | gte_b=gte_unneeded[(ba[i]-start)>>2]; |
57871462 |
6080 | branch_unneeded_reg[i]=b; |
57871462 |
6081 | // Branch delay slot |
57871462 |
6082 | b|=(1LL<<rt1[i+1])|(1LL<<rt2[i+1]); |
57871462 |
6083 | b&=~((1LL<<rs1[i+1])|(1LL<<rs2[i+1])); |
00fa9369 |
6084 | b|=1; |
6085 | gte_b|=gte_rt[i+1]; |
6086 | gte_b&=~gte_rs[i+1]; |
57871462 |
6087 | // If branch is "likely" then we skip the |
6088 | // delay slot on the fall-thru path |
6089 | if(likely[i]) { |
6090 | u=b; |
00fa9369 |
6091 | gte_u=gte_b; |
57871462 |
6092 | if(i<slen-1) { |
6093 | u&=unneeded_reg[i+2]; |
bedfea38 |
6094 | gte_u&=gte_unneeded[i+2]; |
57871462 |
6095 | } |
6096 | } else { |
6097 | u&=b; |
00fa9369 |
6098 | gte_u&=gte_b; |
57871462 |
6099 | } |
6100 | if(i<slen-1) { |
6101 | branch_unneeded_reg[i]&=unneeded_reg[i+2]; |
57871462 |
6102 | } else { |
6103 | branch_unneeded_reg[i]=1; |
57871462 |
6104 | } |
6105 | } |
6106 | } |
6107 | } |
6108 | } |
1e973cb0 |
6109 | else if(itype[i]==SYSCALL||itype[i]==HLECALL||itype[i]==INTCALL) |
57871462 |
6110 | { |
6111 | // SYSCALL instruction (software interrupt) |
6112 | u=1; |
57871462 |
6113 | } |
6114 | else if(itype[i]==COP0 && (source[i]&0x3f)==0x18) |
6115 | { |
6116 | // ERET instruction (return from interrupt) |
6117 | u=1; |
57871462 |
6118 | } |
00fa9369 |
6119 | //u=1; // DEBUG |
57871462 |
6120 | // Written registers are unneeded |
6121 | u|=1LL<<rt1[i]; |
6122 | u|=1LL<<rt2[i]; |
bedfea38 |
6123 | gte_u|=gte_rt[i]; |
57871462 |
6124 | // Accessed registers are needed |
6125 | u&=~(1LL<<rs1[i]); |
6126 | u&=~(1LL<<rs2[i]); |
bedfea38 |
6127 | gte_u&=~gte_rs[i]; |
eaa11918 |
6128 | if(gte_rs[i]&&rt1[i]&&(unneeded_reg[i+1]&(1ll<<rt1[i]))) |
cbbd8dd7 |
6129 | gte_u|=gte_rs[i]>e_unneeded[i+1]; // MFC2/CFC2 to dead register, unneeded |
57871462 |
6130 | // Source-target dependencies |
57871462 |
6131 | // R0 is always unneeded |
00fa9369 |
6132 | u|=1; |
57871462 |
6133 | // Save it |
6134 | unneeded_reg[i]=u; |
bedfea38 |
6135 | gte_unneeded[i]=gte_u; |
57871462 |
6136 | /* |
6137 | printf("ur (%d,%d) %x: ",istart,iend,start+i*4); |
6138 | printf("U:"); |
6139 | int r; |
6140 | for(r=1;r<=CCREG;r++) { |
6141 | if((unneeded_reg[i]>>r)&1) { |
6142 | if(r==HIREG) printf(" HI"); |
6143 | else if(r==LOREG) printf(" LO"); |
6144 | else printf(" r%d",r); |
6145 | } |
6146 | } |
00fa9369 |
6147 | printf("\n"); |
6148 | */ |
252c20fc |
6149 | } |
57871462 |
6150 | } |
6151 | |
71e490c5 |
6152 | // Write back dirty registers as soon as we will no longer modify them, |
6153 | // so that we don't end up with lots of writes at the branches. |
6154 | void clean_registers(int istart,int iend,int wr) |
57871462 |
6155 | { |
71e490c5 |
6156 | int i; |
6157 | int r; |
6158 | u_int will_dirty_i,will_dirty_next,temp_will_dirty; |
6159 | u_int wont_dirty_i,wont_dirty_next,temp_wont_dirty; |
6160 | if(iend==slen-1) { |
6161 | will_dirty_i=will_dirty_next=0; |
6162 | wont_dirty_i=wont_dirty_next=0; |
6163 | }else{ |
6164 | will_dirty_i=will_dirty_next=will_dirty[iend+1]; |
6165 | wont_dirty_i=wont_dirty_next=wont_dirty[iend+1]; |
6166 | } |
6167 | for (i=iend;i>=istart;i--) |
57871462 |
6168 | { |
ad49de89 |
6169 | if(itype[i]==RJUMP||itype[i]==UJUMP||itype[i]==CJUMP||itype[i]==SJUMP) |
57871462 |
6170 | { |
71e490c5 |
6171 | if(ba[i]<start || ba[i]>=(start+slen*4)) |
57871462 |
6172 | { |
71e490c5 |
6173 | // Branch out of this block, flush all regs |
07cd0bc4 |
6174 | if (is_ujump(i)) |
57871462 |
6175 | { |
6176 | // Unconditional branch |
6177 | will_dirty_i=0; |
6178 | wont_dirty_i=0; |
6179 | // Merge in delay slot (will dirty) |
6180 | for(r=0;r<HOST_REGS;r++) { |
6181 | if(r!=EXCLUDE_REG) { |
6182 | if((branch_regs[i].regmap[r]&63)==rt1[i]) will_dirty_i|=1<<r; |
6183 | if((branch_regs[i].regmap[r]&63)==rt2[i]) will_dirty_i|=1<<r; |
6184 | if((branch_regs[i].regmap[r]&63)==rt1[i+1]) will_dirty_i|=1<<r; |
6185 | if((branch_regs[i].regmap[r]&63)==rt2[i+1]) will_dirty_i|=1<<r; |
6186 | if((branch_regs[i].regmap[r]&63)>33) will_dirty_i&=~(1<<r); |
6187 | if(branch_regs[i].regmap[r]<=0) will_dirty_i&=~(1<<r); |
6188 | if(branch_regs[i].regmap[r]==CCREG) will_dirty_i|=1<<r; |
6189 | if((regs[i].regmap[r]&63)==rt1[i]) will_dirty_i|=1<<r; |
6190 | if((regs[i].regmap[r]&63)==rt2[i]) will_dirty_i|=1<<r; |
6191 | if((regs[i].regmap[r]&63)==rt1[i+1]) will_dirty_i|=1<<r; |
6192 | if((regs[i].regmap[r]&63)==rt2[i+1]) will_dirty_i|=1<<r; |
6193 | if((regs[i].regmap[r]&63)>33) will_dirty_i&=~(1<<r); |
6194 | if(regs[i].regmap[r]<=0) will_dirty_i&=~(1<<r); |
6195 | if(regs[i].regmap[r]==CCREG) will_dirty_i|=1<<r; |
6196 | } |
6197 | } |
6198 | } |
6199 | else |
6200 | { |
6201 | // Conditional branch |
6202 | will_dirty_i=0; |
6203 | wont_dirty_i=wont_dirty_next; |
6204 | // Merge in delay slot (will dirty) |
6205 | for(r=0;r<HOST_REGS;r++) { |
6206 | if(r!=EXCLUDE_REG) { |
6207 | if(!likely[i]) { |
6208 | // Might not dirty if likely branch is not taken |
6209 | if((branch_regs[i].regmap[r]&63)==rt1[i]) will_dirty_i|=1<<r; |
6210 | if((branch_regs[i].regmap[r]&63)==rt2[i]) will_dirty_i|=1<<r; |
6211 | if((branch_regs[i].regmap[r]&63)==rt1[i+1]) will_dirty_i|=1<<r; |
6212 | if((branch_regs[i].regmap[r]&63)==rt2[i+1]) will_dirty_i|=1<<r; |
6213 | if((branch_regs[i].regmap[r]&63)>33) will_dirty_i&=~(1<<r); |
6214 | if(branch_regs[i].regmap[r]==0) will_dirty_i&=~(1<<r); |
6215 | if(branch_regs[i].regmap[r]==CCREG) will_dirty_i|=1<<r; |
6216 | //if((regs[i].regmap[r]&63)==rt1[i]) will_dirty_i|=1<<r; |
6217 | //if((regs[i].regmap[r]&63)==rt2[i]) will_dirty_i|=1<<r; |
6218 | if((regs[i].regmap[r]&63)==rt1[i+1]) will_dirty_i|=1<<r; |
6219 | if((regs[i].regmap[r]&63)==rt2[i+1]) will_dirty_i|=1<<r; |
6220 | if((regs[i].regmap[r]&63)>33) will_dirty_i&=~(1<<r); |
6221 | if(regs[i].regmap[r]<=0) will_dirty_i&=~(1<<r); |
6222 | if(regs[i].regmap[r]==CCREG) will_dirty_i|=1<<r; |
6223 | } |
6224 | } |
6225 | } |
6226 | } |
6227 | // Merge in delay slot (wont dirty) |
6228 | for(r=0;r<HOST_REGS;r++) { |
6229 | if(r!=EXCLUDE_REG) { |
6230 | if((regs[i].regmap[r]&63)==rt1[i]) wont_dirty_i|=1<<r; |
6231 | if((regs[i].regmap[r]&63)==rt2[i]) wont_dirty_i|=1<<r; |
6232 | if((regs[i].regmap[r]&63)==rt1[i+1]) wont_dirty_i|=1<<r; |
6233 | if((regs[i].regmap[r]&63)==rt2[i+1]) wont_dirty_i|=1<<r; |
6234 | if(regs[i].regmap[r]==CCREG) wont_dirty_i|=1<<r; |
6235 | if((branch_regs[i].regmap[r]&63)==rt1[i]) wont_dirty_i|=1<<r; |
6236 | if((branch_regs[i].regmap[r]&63)==rt2[i]) wont_dirty_i|=1<<r; |
6237 | if((branch_regs[i].regmap[r]&63)==rt1[i+1]) wont_dirty_i|=1<<r; |
6238 | if((branch_regs[i].regmap[r]&63)==rt2[i+1]) wont_dirty_i|=1<<r; |
6239 | if(branch_regs[i].regmap[r]==CCREG) wont_dirty_i|=1<<r; |
6240 | } |
6241 | } |
6242 | if(wr) { |
6243 | #ifndef DESTRUCTIVE_WRITEBACK |
6244 | branch_regs[i].dirty&=wont_dirty_i; |
6245 | #endif |
6246 | branch_regs[i].dirty|=will_dirty_i; |
6247 | } |
6248 | } |
6249 | else |
6250 | { |
6251 | // Internal branch |
6252 | if(ba[i]<=start+i*4) { |
6253 | // Backward branch |
07cd0bc4 |
6254 | if (is_ujump(i)) |
57871462 |
6255 | { |
6256 | // Unconditional branch |
6257 | temp_will_dirty=0; |
6258 | temp_wont_dirty=0; |
6259 | // Merge in delay slot (will dirty) |
6260 | for(r=0;r<HOST_REGS;r++) { |
6261 | if(r!=EXCLUDE_REG) { |
6262 | if((branch_regs[i].regmap[r]&63)==rt1[i]) temp_will_dirty|=1<<r; |
6263 | if((branch_regs[i].regmap[r]&63)==rt2[i]) temp_will_dirty|=1<<r; |
6264 | if((branch_regs[i].regmap[r]&63)==rt1[i+1]) temp_will_dirty|=1<<r; |
6265 | if((branch_regs[i].regmap[r]&63)==rt2[i+1]) temp_will_dirty|=1<<r; |
6266 | if((branch_regs[i].regmap[r]&63)>33) temp_will_dirty&=~(1<<r); |
6267 | if(branch_regs[i].regmap[r]<=0) temp_will_dirty&=~(1<<r); |
6268 | if(branch_regs[i].regmap[r]==CCREG) temp_will_dirty|=1<<r; |
6269 | if((regs[i].regmap[r]&63)==rt1[i]) temp_will_dirty|=1<<r; |
6270 | if((regs[i].regmap[r]&63)==rt2[i]) temp_will_dirty|=1<<r; |
6271 | if((regs[i].regmap[r]&63)==rt1[i+1]) temp_will_dirty|=1<<r; |
6272 | if((regs[i].regmap[r]&63)==rt2[i+1]) temp_will_dirty|=1<<r; |
6273 | if((regs[i].regmap[r]&63)>33) temp_will_dirty&=~(1<<r); |
6274 | if(regs[i].regmap[r]<=0) temp_will_dirty&=~(1<<r); |
6275 | if(regs[i].regmap[r]==CCREG) temp_will_dirty|=1<<r; |
6276 | } |
6277 | } |
6278 | } else { |
6279 | // Conditional branch (not taken case) |
6280 | temp_will_dirty=will_dirty_next; |
6281 | temp_wont_dirty=wont_dirty_next; |
6282 | // Merge in delay slot (will dirty) |
6283 | for(r=0;r<HOST_REGS;r++) { |
6284 | if(r!=EXCLUDE_REG) { |
6285 | if(!likely[i]) { |
6286 | // Will not dirty if likely branch is not taken |
6287 | if((branch_regs[i].regmap[r]&63)==rt1[i]) temp_will_dirty|=1<<r; |
6288 | if((branch_regs[i].regmap[r]&63)==rt2[i]) temp_will_dirty|=1<<r; |
6289 | if((branch_regs[i].regmap[r]&63)==rt1[i+1]) temp_will_dirty|=1<<r; |
6290 | if((branch_regs[i].regmap[r]&63)==rt2[i+1]) temp_will_dirty|=1<<r; |
6291 | if((branch_regs[i].regmap[r]&63)>33) temp_will_dirty&=~(1<<r); |
6292 | if(branch_regs[i].regmap[r]==0) temp_will_dirty&=~(1<<r); |
6293 | if(branch_regs[i].regmap[r]==CCREG) temp_will_dirty|=1<<r; |
6294 | //if((regs[i].regmap[r]&63)==rt1[i]) temp_will_dirty|=1<<r; |
6295 | //if((regs[i].regmap[r]&63)==rt2[i]) temp_will_dirty|=1<<r; |
6296 | if((regs[i].regmap[r]&63)==rt1[i+1]) temp_will_dirty|=1<<r; |
6297 | if((regs[i].regmap[r]&63)==rt2[i+1]) temp_will_dirty|=1<<r; |
6298 | if((regs[i].regmap[r]&63)>33) temp_will_dirty&=~(1<<r); |
6299 | if(regs[i].regmap[r]<=0) temp_will_dirty&=~(1<<r); |
6300 | if(regs[i].regmap[r]==CCREG) temp_will_dirty|=1<<r; |
6301 | } |
6302 | } |
6303 | } |
6304 | } |
6305 | // Merge in delay slot (wont dirty) |
6306 | for(r=0;r<HOST_REGS;r++) { |
6307 | if(r!=EXCLUDE_REG) { |
6308 | if((regs[i].regmap[r]&63)==rt1[i]) temp_wont_dirty|=1<<r; |
6309 | if((regs[i].regmap[r]&63)==rt2[i]) temp_wont_dirty|=1<<r; |
6310 | if((regs[i].regmap[r]&63)==rt1[i+1]) temp_wont_dirty|=1<<r; |
6311 | if((regs[i].regmap[r]&63)==rt2[i+1]) temp_wont_dirty|=1<<r; |
6312 | if(regs[i].regmap[r]==CCREG) temp_wont_dirty|=1<<r; |
6313 | if((branch_regs[i].regmap[r]&63)==rt1[i]) temp_wont_dirty|=1<<r; |
6314 | if((branch_regs[i].regmap[r]&63)==rt2[i]) temp_wont_dirty|=1<<r; |
6315 | if((branch_regs[i].regmap[r]&63)==rt1[i+1]) temp_wont_dirty|=1<<r; |
6316 | if((branch_regs[i].regmap[r]&63)==rt2[i+1]) temp_wont_dirty|=1<<r; |
6317 | if(branch_regs[i].regmap[r]==CCREG) temp_wont_dirty|=1<<r; |
6318 | } |
6319 | } |
6320 | // Deal with changed mappings |
6321 | if(i<iend) { |
6322 | for(r=0;r<HOST_REGS;r++) { |
6323 | if(r!=EXCLUDE_REG) { |
6324 | if(regs[i].regmap[r]!=regmap_pre[i][r]) { |
6325 | temp_will_dirty&=~(1<<r); |
6326 | temp_wont_dirty&=~(1<<r); |
6327 | if((regmap_pre[i][r]&63)>0 && (regmap_pre[i][r]&63)<34) { |
6328 | temp_will_dirty|=((unneeded_reg[i]>>(regmap_pre[i][r]&63))&1)<<r; |
6329 | temp_wont_dirty|=((unneeded_reg[i]>>(regmap_pre[i][r]&63))&1)<<r; |
6330 | } else { |
6331 | temp_will_dirty|=1<<r; |
6332 | temp_wont_dirty|=1<<r; |
6333 | } |
6334 | } |
6335 | } |
6336 | } |
6337 | } |
6338 | if(wr) { |
6339 | will_dirty[i]=temp_will_dirty; |
6340 | wont_dirty[i]=temp_wont_dirty; |
6341 | clean_registers((ba[i]-start)>>2,i-1,0); |
6342 | }else{ |
6343 | // Limit recursion. It can take an excessive amount |
6344 | // of time if there are a lot of nested loops. |
6345 | will_dirty[(ba[i]-start)>>2]=0; |
6346 | wont_dirty[(ba[i]-start)>>2]=-1; |
6347 | } |
6348 | } |
6349 | /*else*/ if(1) |
6350 | { |
07cd0bc4 |
6351 | if (is_ujump(i)) |
57871462 |
6352 | { |
6353 | // Unconditional branch |
6354 | will_dirty_i=0; |
6355 | wont_dirty_i=0; |
6356 | //if(ba[i]>start+i*4) { // Disable recursion (for debugging) |
6357 | for(r=0;r<HOST_REGS;r++) { |
6358 | if(r!=EXCLUDE_REG) { |
6359 | if(branch_regs[i].regmap[r]==regs[(ba[i]-start)>>2].regmap_entry[r]) { |
6360 | will_dirty_i|=will_dirty[(ba[i]-start)>>2]&(1<<r); |
6361 | wont_dirty_i|=wont_dirty[(ba[i]-start)>>2]&(1<<r); |
6362 | } |
e3234ecf |
6363 | if(branch_regs[i].regmap[r]>=0) { |
6364 | will_dirty_i|=((unneeded_reg[(ba[i]-start)>>2]>>(branch_regs[i].regmap[r]&63))&1)<<r; |
6365 | wont_dirty_i|=((unneeded_reg[(ba[i]-start)>>2]>>(branch_regs[i].regmap[r]&63))&1)<<r; |
6366 | } |
57871462 |
6367 | } |
6368 | } |
6369 | //} |
6370 | // Merge in delay slot |
6371 | for(r=0;r<HOST_REGS;r++) { |
6372 | if(r!=EXCLUDE_REG) { |
6373 | if((branch_regs[i].regmap[r]&63)==rt1[i]) will_dirty_i|=1<<r; |
6374 | if((branch_regs[i].regmap[r]&63)==rt2[i]) will_dirty_i|=1<<r; |
6375 | if((branch_regs[i].regmap[r]&63)==rt1[i+1]) will_dirty_i|=1<<r; |
6376 | if((branch_regs[i].regmap[r]&63)==rt2[i+1]) will_dirty_i|=1<<r; |
6377 | if((branch_regs[i].regmap[r]&63)>33) will_dirty_i&=~(1<<r); |
6378 | if(branch_regs[i].regmap[r]<=0) will_dirty_i&=~(1<<r); |
6379 | if(branch_regs[i].regmap[r]==CCREG) will_dirty_i|=1<<r; |
6380 | if((regs[i].regmap[r]&63)==rt1[i]) will_dirty_i|=1<<r; |
6381 | if((regs[i].regmap[r]&63)==rt2[i]) will_dirty_i|=1<<r; |
6382 | if((regs[i].regmap[r]&63)==rt1[i+1]) will_dirty_i|=1<<r; |
6383 | if((regs[i].regmap[r]&63)==rt2[i+1]) will_dirty_i|=1<<r; |
6384 | if((regs[i].regmap[r]&63)>33) will_dirty_i&=~(1<<r); |
6385 | if(regs[i].regmap[r]<=0) will_dirty_i&=~(1<<r); |
6386 | if(regs[i].regmap[r]==CCREG) will_dirty_i|=1<<r; |
6387 | } |
6388 | } |
6389 | } else { |
6390 | // Conditional branch |
6391 | will_dirty_i=will_dirty_next; |
6392 | wont_dirty_i=wont_dirty_next; |
6393 | //if(ba[i]>start+i*4) { // Disable recursion (for debugging) |
6394 | for(r=0;r<HOST_REGS;r++) { |
6395 | if(r!=EXCLUDE_REG) { |
e3234ecf |
6396 | signed char target_reg=branch_regs[i].regmap[r]; |
6397 | if(target_reg==regs[(ba[i]-start)>>2].regmap_entry[r]) { |
57871462 |
6398 | will_dirty_i&=will_dirty[(ba[i]-start)>>2]&(1<<r); |
6399 | wont_dirty_i|=wont_dirty[(ba[i]-start)>>2]&(1<<r); |
6400 | } |
e3234ecf |
6401 | else if(target_reg>=0) { |
6402 | will_dirty_i&=((unneeded_reg[(ba[i]-start)>>2]>>(target_reg&63))&1)<<r; |
6403 | wont_dirty_i|=((unneeded_reg[(ba[i]-start)>>2]>>(target_reg&63))&1)<<r; |
57871462 |
6404 | } |
6405 | // Treat delay slot as part of branch too |
6406 | /*if(regs[i+1].regmap[r]==regs[(ba[i]-start)>>2].regmap_entry[r]) { |
6407 | will_dirty[i+1]&=will_dirty[(ba[i]-start)>>2]&(1<<r); |
6408 | wont_dirty[i+1]|=wont_dirty[(ba[i]-start)>>2]&(1<<r); |
6409 | } |
6410 | else |
6411 | { |
6412 | will_dirty[i+1]&=~(1<<r); |
6413 | }*/ |
6414 | } |
6415 | } |
6416 | //} |
6417 | // Merge in delay slot |
6418 | for(r=0;r<HOST_REGS;r++) { |
6419 | if(r!=EXCLUDE_REG) { |
6420 | if(!likely[i]) { |
6421 | // Might not dirty if likely branch is not taken |
6422 | if((branch_regs[i].regmap[r]&63)==rt1[i]) will_dirty_i|=1<<r; |
6423 | if((branch_regs[i].regmap[r]&63)==rt2[i]) will_dirty_i|=1<<r; |
6424 | if((branch_regs[i].regmap[r]&63)==rt1[i+1]) will_dirty_i|=1<<r; |
6425 | if((branch_regs[i].regmap[r]&63)==rt2[i+1]) will_dirty_i|=1<<r; |
6426 | if((branch_regs[i].regmap[r]&63)>33) will_dirty_i&=~(1<<r); |
6427 | if(branch_regs[i].regmap[r]<=0) will_dirty_i&=~(1<<r); |
6428 | if(branch_regs[i].regmap[r]==CCREG) will_dirty_i|=1<<r; |
6429 | //if((regs[i].regmap[r]&63)==rt1[i]) will_dirty_i|=1<<r; |
6430 | //if((regs[i].regmap[r]&63)==rt2[i]) will_dirty_i|=1<<r; |
6431 | if((regs[i].regmap[r]&63)==rt1[i+1]) will_dirty_i|=1<<r; |
6432 | if((regs[i].regmap[r]&63)==rt2[i+1]) will_dirty_i|=1<<r; |
6433 | if((regs[i].regmap[r]&63)>33) will_dirty_i&=~(1<<r); |
6434 | if(regs[i].regmap[r]<=0) will_dirty_i&=~(1<<r); |
6435 | if(regs[i].regmap[r]==CCREG) will_dirty_i|=1<<r; |
6436 | } |
6437 | } |
6438 | } |
6439 | } |
e3234ecf |
6440 | // Merge in delay slot (won't dirty) |
57871462 |
6441 | for(r=0;r<HOST_REGS;r++) { |
6442 | if(r!=EXCLUDE_REG) { |
6443 | if((regs[i].regmap[r]&63)==rt1[i]) wont_dirty_i|=1<<r; |
6444 | if((regs[i].regmap[r]&63)==rt2[i]) wont_dirty_i|=1<<r; |
6445 | if((regs[i].regmap[r]&63)==rt1[i+1]) wont_dirty_i|=1<<r; |
6446 | if((regs[i].regmap[r]&63)==rt2[i+1]) wont_dirty_i|=1<<r; |
6447 | if(regs[i].regmap[r]==CCREG) wont_dirty_i|=1<<r; |
6448 | if((branch_regs[i].regmap[r]&63)==rt1[i]) wont_dirty_i|=1<<r; |
6449 | if((branch_regs[i].regmap[r]&63)==rt2[i]) wont_dirty_i|=1<<r; |
6450 | if((branch_regs[i].regmap[r]&63)==rt1[i+1]) wont_dirty_i|=1<<r; |
6451 | if((branch_regs[i].regmap[r]&63)==rt2[i+1]) wont_dirty_i|=1<<r; |
6452 | if(branch_regs[i].regmap[r]==CCREG) wont_dirty_i|=1<<r; |
6453 | } |
6454 | } |
6455 | if(wr) { |
6456 | #ifndef DESTRUCTIVE_WRITEBACK |
6457 | branch_regs[i].dirty&=wont_dirty_i; |
6458 | #endif |
6459 | branch_regs[i].dirty|=will_dirty_i; |
6460 | } |
6461 | } |
6462 | } |
6463 | } |
1e973cb0 |
6464 | else if(itype[i]==SYSCALL||itype[i]==HLECALL||itype[i]==INTCALL) |
57871462 |
6465 | { |
6466 | // SYSCALL instruction (software interrupt) |
6467 | will_dirty_i=0; |
6468 | wont_dirty_i=0; |
6469 | } |
6470 | else if(itype[i]==COP0 && (source[i]&0x3f)==0x18) |
6471 | { |
6472 | // ERET instruction (return from interrupt) |
6473 | will_dirty_i=0; |
6474 | wont_dirty_i=0; |
6475 | } |
6476 | will_dirty_next=will_dirty_i; |
6477 | wont_dirty_next=wont_dirty_i; |
6478 | for(r=0;r<HOST_REGS;r++) { |
6479 | if(r!=EXCLUDE_REG) { |
6480 | if((regs[i].regmap[r]&63)==rt1[i]) will_dirty_i|=1<<r; |
6481 | if((regs[i].regmap[r]&63)==rt2[i]) will_dirty_i|=1<<r; |
6482 | if((regs[i].regmap[r]&63)>33) will_dirty_i&=~(1<<r); |
6483 | if(regs[i].regmap[r]<=0) will_dirty_i&=~(1<<r); |
6484 | if(regs[i].regmap[r]==CCREG) will_dirty_i|=1<<r; |
6485 | if((regs[i].regmap[r]&63)==rt1[i]) wont_dirty_i|=1<<r; |
6486 | if((regs[i].regmap[r]&63)==rt2[i]) wont_dirty_i|=1<<r; |
6487 | if(regs[i].regmap[r]==CCREG) wont_dirty_i|=1<<r; |
6488 | if(i>istart) { |
ad49de89 |
6489 | if(itype[i]!=RJUMP&&itype[i]!=UJUMP&&itype[i]!=CJUMP&&itype[i]!=SJUMP) |
57871462 |
6490 | { |
6491 | // Don't store a register immediately after writing it, |
6492 | // may prevent dual-issue. |
6493 | if((regs[i].regmap[r]&63)==rt1[i-1]) wont_dirty_i|=1<<r; |
6494 | if((regs[i].regmap[r]&63)==rt2[i-1]) wont_dirty_i|=1<<r; |
6495 | } |
6496 | } |
6497 | } |
6498 | } |
6499 | // Save it |
6500 | will_dirty[i]=will_dirty_i; |
6501 | wont_dirty[i]=wont_dirty_i; |
6502 | // Mark registers that won't be dirtied as not dirty |
6503 | if(wr) { |
6504 | /*printf("wr (%d,%d) %x will:",istart,iend,start+i*4); |
6505 | for(r=0;r<HOST_REGS;r++) { |
6506 | if((will_dirty_i>>r)&1) { |
6507 | printf(" r%d",r); |
6508 | } |
6509 | } |
6510 | printf("\n");*/ |
6511 | |
ad49de89 |
6512 | //if(i==istart||(itype[i-1]!=RJUMP&&itype[i-1]!=UJUMP&&itype[i-1]!=CJUMP&&itype[i-1]!=SJUMP)) { |
57871462 |
6513 | regs[i].dirty|=will_dirty_i; |
6514 | #ifndef DESTRUCTIVE_WRITEBACK |
6515 | regs[i].dirty&=wont_dirty_i; |
ad49de89 |
6516 | if(itype[i]==RJUMP||itype[i]==UJUMP||itype[i]==CJUMP||itype[i]==SJUMP) |
57871462 |
6517 | { |
07cd0bc4 |
6518 | if (i < iend-1 && !is_ujump(i)) { |
57871462 |
6519 | for(r=0;r<HOST_REGS;r++) { |
6520 | if(r!=EXCLUDE_REG) { |
6521 | if(regs[i].regmap[r]==regmap_pre[i+2][r]) { |
6522 | regs[i+2].wasdirty&=wont_dirty_i|~(1<<r); |
581335b0 |
6523 | }else {/*printf("i: %x (%d) mismatch(+2): %d\n",start+i*4,i,r);assert(!((wont_dirty_i>>r)&1));*/} |
57871462 |
6524 | } |
6525 | } |
6526 | } |
6527 | } |
6528 | else |
6529 | { |
6530 | if(i<iend) { |
6531 | for(r=0;r<HOST_REGS;r++) { |
6532 | if(r!=EXCLUDE_REG) { |
6533 | if(regs[i].regmap[r]==regmap_pre[i+1][r]) { |
6534 | regs[i+1].wasdirty&=wont_dirty_i|~(1<<r); |
581335b0 |
6535 | }else {/*printf("i: %x (%d) mismatch(+1): %d\n",start+i*4,i,r);assert(!((wont_dirty_i>>r)&1));*/} |
57871462 |
6536 | } |
6537 | } |
6538 | } |
6539 | } |
6540 | #endif |
6541 | //} |
6542 | } |
6543 | // Deal with changed mappings |
6544 | temp_will_dirty=will_dirty_i; |
6545 | temp_wont_dirty=wont_dirty_i; |
6546 | for(r=0;r<HOST_REGS;r++) { |
6547 | if(r!=EXCLUDE_REG) { |
6548 | int nr; |
6549 | if(regs[i].regmap[r]==regmap_pre[i][r]) { |
6550 | if(wr) { |
6551 | #ifndef DESTRUCTIVE_WRITEBACK |
6552 | regs[i].wasdirty&=wont_dirty_i|~(1<<r); |
6553 | #endif |
6554 | regs[i].wasdirty|=will_dirty_i&(1<<r); |
6555 | } |
6556 | } |
f776eb14 |
6557 | else if(regmap_pre[i][r]>=0&&(nr=get_reg(regs[i].regmap,regmap_pre[i][r]))>=0) { |
57871462 |
6558 | // Register moved to a different register |
6559 | will_dirty_i&=~(1<<r); |
6560 | wont_dirty_i&=~(1<<r); |
6561 | will_dirty_i|=((temp_will_dirty>>nr)&1)<<r; |
6562 | wont_dirty_i|=((temp_wont_dirty>>nr)&1)<<r; |
6563 | if(wr) { |
6564 | #ifndef DESTRUCTIVE_WRITEBACK |
6565 | regs[i].wasdirty&=wont_dirty_i|~(1<<r); |
6566 | #endif |
6567 | regs[i].wasdirty|=will_dirty_i&(1<<r); |
6568 | } |
6569 | } |
6570 | else { |
6571 | will_dirty_i&=~(1<<r); |
6572 | wont_dirty_i&=~(1<<r); |
6573 | if((regmap_pre[i][r]&63)>0 && (regmap_pre[i][r]&63)<34) { |
6574 | will_dirty_i|=((unneeded_reg[i]>>(regmap_pre[i][r]&63))&1)<<r; |
6575 | wont_dirty_i|=((unneeded_reg[i]>>(regmap_pre[i][r]&63))&1)<<r; |
6576 | } else { |
6577 | wont_dirty_i|=1<<r; |
581335b0 |
6578 | /*printf("i: %x (%d) mismatch: %d\n",start+i*4,i,r);assert(!((will_dirty>>r)&1));*/ |
57871462 |
6579 | } |
6580 | } |
6581 | } |
6582 | } |
6583 | } |
6584 | } |
6585 | |
4600ba03 |
6586 | #ifdef DISASM |
57871462 |
6587 | /* disassembly */ |
6588 | void disassemble_inst(int i) |
6589 | { |
6590 | if (bt[i]) printf("*"); else printf(" "); |
6591 | switch(itype[i]) { |
6592 | case UJUMP: |
6593 | printf (" %x: %s %8x\n",start+i*4,insn[i],ba[i]);break; |
6594 | case CJUMP: |
6595 | printf (" %x: %s r%d,r%d,%8x\n",start+i*4,insn[i],rs1[i],rs2[i],i?start+i*4+4+((signed int)((unsigned int)source[i]<<16)>>14):*ba);break; |
6596 | case SJUMP: |
6597 | printf (" %x: %s r%d,%8x\n",start+i*4,insn[i],rs1[i],start+i*4+4+((signed int)((unsigned int)source[i]<<16)>>14));break; |
57871462 |
6598 | case RJUMP: |
74426039 |
6599 | if (opcode[i]==0x9&&rt1[i]!=31) |
5067f341 |
6600 | printf (" %x: %s r%d,r%d\n",start+i*4,insn[i],rt1[i],rs1[i]); |
6601 | else |
6602 | printf (" %x: %s r%d\n",start+i*4,insn[i],rs1[i]); |
6603 | break; |
57871462 |
6604 | case SPAN: |
6605 | printf (" %x: %s (pagespan) r%d,r%d,%8x\n",start+i*4,insn[i],rs1[i],rs2[i],ba[i]);break; |
6606 | case IMM16: |
6607 | if(opcode[i]==0xf) //LUI |
6608 | printf (" %x: %s r%d,%4x0000\n",start+i*4,insn[i],rt1[i],imm[i]&0xffff); |
6609 | else |
6610 | printf (" %x: %s r%d,r%d,%d\n",start+i*4,insn[i],rt1[i],rs1[i],imm[i]); |
6611 | break; |
6612 | case LOAD: |
6613 | case LOADLR: |
6614 | printf (" %x: %s r%d,r%d+%x\n",start+i*4,insn[i],rt1[i],rs1[i],imm[i]); |
6615 | break; |
6616 | case STORE: |
6617 | case STORELR: |
6618 | printf (" %x: %s r%d,r%d+%x\n",start+i*4,insn[i],rs2[i],rs1[i],imm[i]); |
6619 | break; |
6620 | case ALU: |
6621 | case SHIFT: |
6622 | printf (" %x: %s r%d,r%d,r%d\n",start+i*4,insn[i],rt1[i],rs1[i],rs2[i]); |
6623 | break; |
6624 | case MULTDIV: |
6625 | printf (" %x: %s r%d,r%d\n",start+i*4,insn[i],rs1[i],rs2[i]); |
6626 | break; |
6627 | case SHIFTIMM: |
6628 | printf (" %x: %s r%d,r%d,%d\n",start+i*4,insn[i],rt1[i],rs1[i],imm[i]); |
6629 | break; |
6630 | case MOV: |
6631 | if((opcode2[i]&0x1d)==0x10) |
6632 | printf (" %x: %s r%d\n",start+i*4,insn[i],rt1[i]); |
6633 | else if((opcode2[i]&0x1d)==0x11) |
6634 | printf (" %x: %s r%d\n",start+i*4,insn[i],rs1[i]); |
6635 | else |
6636 | printf (" %x: %s\n",start+i*4,insn[i]); |
6637 | break; |
6638 | case COP0: |
6639 | if(opcode2[i]==0) |
6640 | printf (" %x: %s r%d,cpr0[%d]\n",start+i*4,insn[i],rt1[i],(source[i]>>11)&0x1f); // MFC0 |
6641 | else if(opcode2[i]==4) |
6642 | printf (" %x: %s r%d,cpr0[%d]\n",start+i*4,insn[i],rs1[i],(source[i]>>11)&0x1f); // MTC0 |
6643 | else printf (" %x: %s\n",start+i*4,insn[i]); |
6644 | break; |
6645 | case COP1: |
6646 | if(opcode2[i]<3) |
6647 | printf (" %x: %s r%d,cpr1[%d]\n",start+i*4,insn[i],rt1[i],(source[i]>>11)&0x1f); // MFC1 |
6648 | else if(opcode2[i]>3) |
6649 | printf (" %x: %s r%d,cpr1[%d]\n",start+i*4,insn[i],rs1[i],(source[i]>>11)&0x1f); // MTC1 |
6650 | else printf (" %x: %s\n",start+i*4,insn[i]); |
6651 | break; |
b9b61529 |
6652 | case COP2: |
6653 | if(opcode2[i]<3) |
6654 | printf (" %x: %s r%d,cpr2[%d]\n",start+i*4,insn[i],rt1[i],(source[i]>>11)&0x1f); // MFC2 |
6655 | else if(opcode2[i]>3) |
6656 | printf (" %x: %s r%d,cpr2[%d]\n",start+i*4,insn[i],rs1[i],(source[i]>>11)&0x1f); // MTC2 |
6657 | else printf (" %x: %s\n",start+i*4,insn[i]); |
6658 | break; |
57871462 |
6659 | case C1LS: |
6660 | printf (" %x: %s cpr1[%d],r%d+%x\n",start+i*4,insn[i],(source[i]>>16)&0x1f,rs1[i],imm[i]); |
6661 | break; |
b9b61529 |
6662 | case C2LS: |
6663 | printf (" %x: %s cpr2[%d],r%d+%x\n",start+i*4,insn[i],(source[i]>>16)&0x1f,rs1[i],imm[i]); |
6664 | break; |
1e973cb0 |
6665 | case INTCALL: |
6666 | printf (" %x: %s (INTCALL)\n",start+i*4,insn[i]); |
6667 | break; |
57871462 |
6668 | default: |
6669 | //printf (" %s %8x\n",insn[i],source[i]); |
6670 | printf (" %x: %s\n",start+i*4,insn[i]); |
6671 | } |
6672 | } |
4600ba03 |
6673 | #else |
6674 | static void disassemble_inst(int i) {} |
6675 | #endif // DISASM |
57871462 |
6676 | |
d848b60a |
6677 | #define DRC_TEST_VAL 0x74657374 |
6678 | |
be516ebe |
6679 | static void new_dynarec_test(void) |
d848b60a |
6680 | { |
be516ebe |
6681 | int (*testfunc)(void); |
d148d265 |
6682 | void *beginning; |
be516ebe |
6683 | int ret[2]; |
6684 | size_t i; |
d148d265 |
6685 | |
687b4580 |
6686 | // check structure linkage |
7c3a5182 |
6687 | if ((u_char *)rcnts - (u_char *)&psxRegs != sizeof(psxRegs)) |
687b4580 |
6688 | { |
7c3a5182 |
6689 | SysPrintf("linkage_arm* miscompilation/breakage detected.\n"); |
687b4580 |
6690 | } |
6691 | |
be516ebe |
6692 | SysPrintf("testing if we can run recompiled code...\n"); |
6693 | ((volatile u_int *)out)[0]++; // make cache dirty |
6694 | |
6695 | for (i = 0; i < ARRAY_SIZE(ret); i++) { |
2a014d73 |
6696 | out = ndrc->translation_cache; |
be516ebe |
6697 | beginning = start_block(); |
6698 | emit_movimm(DRC_TEST_VAL + i, 0); // test |
6699 | emit_ret(); |
6700 | literal_pool(0); |
6701 | end_block(beginning); |
6702 | testfunc = beginning; |
6703 | ret[i] = testfunc(); |
6704 | } |
6705 | |
6706 | if (ret[0] == DRC_TEST_VAL && ret[1] == DRC_TEST_VAL + 1) |
d848b60a |
6707 | SysPrintf("test passed.\n"); |
6708 | else |
be516ebe |
6709 | SysPrintf("test failed, will likely crash soon (r=%08x %08x)\n", ret[0], ret[1]); |
2a014d73 |
6710 | out = ndrc->translation_cache; |
d848b60a |
6711 | } |
6712 | |
dc990066 |
6713 | // clear the state completely, instead of just marking |
6714 | // things invalid like invalidate_all_pages() does |
919981d0 |
6715 | void new_dynarec_clear_full(void) |
57871462 |
6716 | { |
57871462 |
6717 | int n; |
2a014d73 |
6718 | out = ndrc->translation_cache; |
35775df7 |
6719 | memset(invalid_code,1,sizeof(invalid_code)); |
6720 | memset(hash_table,0xff,sizeof(hash_table)); |
57871462 |
6721 | memset(mini_ht,-1,sizeof(mini_ht)); |
6722 | memset(restore_candidate,0,sizeof(restore_candidate)); |
dc990066 |
6723 | memset(shadow,0,sizeof(shadow)); |
57871462 |
6724 | copy=shadow; |
6725 | expirep=16384; // Expiry pointer, +2 blocks |
6726 | pending_exception=0; |
6727 | literalcount=0; |
57871462 |
6728 | stop_after_jal=0; |
9be4ba64 |
6729 | inv_code_start=inv_code_end=~0; |
57871462 |
6730 | // TLB |
dc990066 |
6731 | for(n=0;n<4096;n++) ll_clear(jump_in+n); |
6732 | for(n=0;n<4096;n++) ll_clear(jump_out+n); |
6733 | for(n=0;n<4096;n++) ll_clear(jump_dirty+n); |
6734 | } |
6735 | |
919981d0 |
6736 | void new_dynarec_init(void) |
dc990066 |
6737 | { |
d848b60a |
6738 | SysPrintf("Init new dynarec\n"); |
1e212a25 |
6739 | |
2a014d73 |
6740 | #ifdef BASE_ADDR_DYNAMIC |
1e212a25 |
6741 | #ifdef VITA |
6742 | sceBlock = sceKernelAllocMemBlockForVM("code", 1 << TARGET_SIZE_2); |
6743 | if (sceBlock < 0) |
6744 | SysPrintf("sceKernelAllocMemBlockForVM failed\n"); |
2a014d73 |
6745 | int ret = sceKernelGetMemBlockBase(sceBlock, (void **)&ndrc); |
1e212a25 |
6746 | if (ret < 0) |
6747 | SysPrintf("sceKernelGetMemBlockBase failed\n"); |
6748 | #else |
2a014d73 |
6749 | uintptr_t desired_addr = 0; |
6750 | #ifdef __ELF__ |
6751 | extern char _end; |
6752 | desired_addr = ((uintptr_t)&_end + 0xffffff) & ~0xffffffl; |
6753 | #endif |
6754 | ndrc = mmap((void *)desired_addr, sizeof(*ndrc), |
1e212a25 |
6755 | PROT_READ | PROT_WRITE | PROT_EXEC, |
6756 | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); |
2a014d73 |
6757 | if (ndrc == MAP_FAILED) { |
d848b60a |
6758 | SysPrintf("mmap() failed: %s\n", strerror(errno)); |
1e212a25 |
6759 | abort(); |
d848b60a |
6760 | } |
1e212a25 |
6761 | #endif |
6762 | #else |
6763 | #ifndef NO_WRITE_EXEC |
bdeade46 |
6764 | // not all systems allow execute in data segment by default |
2a014d73 |
6765 | if (mprotect(ndrc, sizeof(ndrc->translation_cache) + sizeof(ndrc->tramp.ops), |
6766 | PROT_READ | PROT_WRITE | PROT_EXEC) != 0) |
d848b60a |
6767 | SysPrintf("mprotect() failed: %s\n", strerror(errno)); |
1e212a25 |
6768 | #endif |
dc990066 |
6769 | #endif |
2a014d73 |
6770 | out = ndrc->translation_cache; |
2573466a |
6771 | cycle_multiplier=200; |
dc990066 |
6772 | new_dynarec_clear_full(); |
6773 | #ifdef HOST_IMM8 |
6774 | // Copy this into local area so we don't have to put it in every literal pool |
6775 | invc_ptr=invalid_code; |
6776 | #endif |
57871462 |
6777 | arch_init(); |
d848b60a |
6778 | new_dynarec_test(); |
a327ad27 |
6779 | #ifndef RAM_FIXED |
01d26796 |
6780 | ram_offset=(uintptr_t)rdram-0x80000000; |
a327ad27 |
6781 | #endif |
b105cf4f |
6782 | if (ram_offset!=0) |
c43b5311 |
6783 | SysPrintf("warning: RAM is not directly mapped, performance will suffer\n"); |
57871462 |
6784 | } |
6785 | |
919981d0 |
6786 | void new_dynarec_cleanup(void) |
57871462 |
6787 | { |
6788 | int n; |
2a014d73 |
6789 | #ifdef BASE_ADDR_DYNAMIC |
1e212a25 |
6790 | #ifdef VITA |
6791 | sceKernelFreeMemBlock(sceBlock); |
6792 | sceBlock = -1; |
6793 | #else |
2a014d73 |
6794 | if (munmap(ndrc, sizeof(*ndrc)) < 0) |
1e212a25 |
6795 | SysPrintf("munmap() failed\n"); |
bdeade46 |
6796 | #endif |
1e212a25 |
6797 | #endif |
57871462 |
6798 | for(n=0;n<4096;n++) ll_clear(jump_in+n); |
6799 | for(n=0;n<4096;n++) ll_clear(jump_out+n); |
6800 | for(n=0;n<4096;n++) ll_clear(jump_dirty+n); |
6801 | #ifdef ROM_COPY |
c43b5311 |
6802 | if (munmap (ROM_COPY, 67108864) < 0) {SysPrintf("munmap() failed\n");} |
57871462 |
6803 | #endif |
6804 | } |
6805 | |
03f55e6b |
6806 | static u_int *get_source_start(u_int addr, u_int *limit) |
57871462 |
6807 | { |
d62c125a |
6808 | if (!HACK_ENABLED(NDHACK_OVERRIDE_CYCLE_M)) |
a3203cf4 |
6809 | cycle_multiplier_override = 0; |
6810 | |
03f55e6b |
6811 | if (addr < 0x00200000 || |
a3203cf4 |
6812 | (0xa0000000 <= addr && addr < 0xa0200000)) |
6813 | { |
03f55e6b |
6814 | // used for BIOS calls mostly? |
6815 | *limit = (addr&0xa0000000)|0x00200000; |
01d26796 |
6816 | return (u_int *)(rdram + (addr&0x1fffff)); |
03f55e6b |
6817 | } |
6818 | else if (!Config.HLE && ( |
6819 | /* (0x9fc00000 <= addr && addr < 0x9fc80000) ||*/ |
a3203cf4 |
6820 | (0xbfc00000 <= addr && addr < 0xbfc80000))) |
6821 | { |
6822 | // BIOS. The multiplier should be much higher as it's uncached 8bit mem, |
6823 | // but timings in PCSX are too tied to the interpreter's BIAS |
d62c125a |
6824 | if (!HACK_ENABLED(NDHACK_OVERRIDE_CYCLE_M)) |
a3203cf4 |
6825 | cycle_multiplier_override = 200; |
6826 | |
03f55e6b |
6827 | *limit = (addr & 0xfff00000) | 0x80000; |
01d26796 |
6828 | return (u_int *)((u_char *)psxR + (addr&0x7ffff)); |
03f55e6b |
6829 | } |
6830 | else if (addr >= 0x80000000 && addr < 0x80000000+RAM_SIZE) { |
6831 | *limit = (addr & 0x80600000) + 0x00200000; |
01d26796 |
6832 | return (u_int *)(rdram + (addr&0x1fffff)); |
03f55e6b |
6833 | } |
581335b0 |
6834 | return NULL; |
03f55e6b |
6835 | } |
6836 | |
6837 | static u_int scan_for_ret(u_int addr) |
6838 | { |
6839 | u_int limit = 0; |
6840 | u_int *mem; |
6841 | |
6842 | mem = get_source_start(addr, &limit); |
6843 | if (mem == NULL) |
6844 | return addr; |
6845 | |
6846 | if (limit > addr + 0x1000) |
6847 | limit = addr + 0x1000; |
6848 | for (; addr < limit; addr += 4, mem++) { |
6849 | if (*mem == 0x03e00008) // jr $ra |
6850 | return addr + 8; |
57871462 |
6851 | } |
581335b0 |
6852 | return addr; |
03f55e6b |
6853 | } |
6854 | |
6855 | struct savestate_block { |
6856 | uint32_t addr; |
6857 | uint32_t regflags; |
6858 | }; |
6859 | |
6860 | static int addr_cmp(const void *p1_, const void *p2_) |
6861 | { |
6862 | const struct savestate_block *p1 = p1_, *p2 = p2_; |
6863 | return p1->addr - p2->addr; |
6864 | } |
6865 | |
6866 | int new_dynarec_save_blocks(void *save, int size) |
6867 | { |
6868 | struct savestate_block *blocks = save; |
6869 | int maxcount = size / sizeof(blocks[0]); |
6870 | struct savestate_block tmp_blocks[1024]; |
6871 | struct ll_entry *head; |
6872 | int p, s, d, o, bcnt; |
6873 | u_int addr; |
6874 | |
6875 | o = 0; |
b14b6a8f |
6876 | for (p = 0; p < ARRAY_SIZE(jump_in); p++) { |
03f55e6b |
6877 | bcnt = 0; |
6878 | for (head = jump_in[p]; head != NULL; head = head->next) { |
6879 | tmp_blocks[bcnt].addr = head->vaddr; |
6880 | tmp_blocks[bcnt].regflags = head->reg_sv_flags; |
6881 | bcnt++; |
6882 | } |
6883 | if (bcnt < 1) |
6884 | continue; |
6885 | qsort(tmp_blocks, bcnt, sizeof(tmp_blocks[0]), addr_cmp); |
6886 | |
6887 | addr = tmp_blocks[0].addr; |
6888 | for (s = d = 0; s < bcnt; s++) { |
6889 | if (tmp_blocks[s].addr < addr) |
6890 | continue; |
6891 | if (d == 0 || tmp_blocks[d-1].addr != tmp_blocks[s].addr) |
6892 | tmp_blocks[d++] = tmp_blocks[s]; |
6893 | addr = scan_for_ret(tmp_blocks[s].addr); |
6894 | } |
6895 | |
6896 | if (o + d > maxcount) |
6897 | d = maxcount - o; |
6898 | memcpy(&blocks[o], tmp_blocks, d * sizeof(blocks[0])); |
6899 | o += d; |
6900 | } |
6901 | |
6902 | return o * sizeof(blocks[0]); |
6903 | } |
6904 | |
6905 | void new_dynarec_load_blocks(const void *save, int size) |
6906 | { |
6907 | const struct savestate_block *blocks = save; |
6908 | int count = size / sizeof(blocks[0]); |
6909 | u_int regs_save[32]; |
6910 | uint32_t f; |
6911 | int i, b; |
6912 | |
6913 | get_addr(psxRegs.pc); |
6914 | |
6915 | // change GPRs for speculation to at least partially work.. |
6916 | memcpy(regs_save, &psxRegs.GPR, sizeof(regs_save)); |
6917 | for (i = 1; i < 32; i++) |
6918 | psxRegs.GPR.r[i] = 0x80000000; |
6919 | |
6920 | for (b = 0; b < count; b++) { |
6921 | for (f = blocks[b].regflags, i = 0; f; f >>= 1, i++) { |
6922 | if (f & 1) |
6923 | psxRegs.GPR.r[i] = 0x1f800000; |
6924 | } |
6925 | |
6926 | get_addr(blocks[b].addr); |
6927 | |
6928 | for (f = blocks[b].regflags, i = 0; f; f >>= 1, i++) { |
6929 | if (f & 1) |
6930 | psxRegs.GPR.r[i] = 0x80000000; |
6931 | } |
6932 | } |
6933 | |
6934 | memcpy(&psxRegs.GPR, regs_save, sizeof(regs_save)); |
6935 | } |
6936 | |
3968e69e |
6937 | int new_recompile_block(u_int addr) |
03f55e6b |
6938 | { |
6939 | u_int pagelimit = 0; |
6940 | u_int state_rflags = 0; |
6941 | int i; |
6942 | |
1a4301c4 |
6943 | assem_debug("NOTCOMPILED: addr = %x -> %p\n", addr, out); |
57871462 |
6944 | //printf("TRACE: count=%d next=%d (compile %x)\n",Count,next_interupt,addr); |
9f51b4b9 |
6945 | //if(debug) |
57871462 |
6946 | //printf("fpu mapping=%x enabled=%x\n",(Status & 0x04000000)>>26,(Status & 0x20000000)>>29); |
03f55e6b |
6947 | |
6948 | // this is just for speculation |
6949 | for (i = 1; i < 32; i++) { |
6950 | if ((psxRegs.GPR.r[i] & 0xffff0000) == 0x1f800000) |
6951 | state_rflags |= 1 << i; |
6952 | } |
6953 | |
57871462 |
6954 | start = (u_int)addr&~3; |
7c3a5182 |
6955 | //assert(((u_int)addr&1)==0); // start-in-delay-slot flag |
2f546f9a |
6956 | new_dynarec_did_compile=1; |
9ad4d757 |
6957 | if (Config.HLE && start == 0x80001000) // hlecall |
560e4a12 |
6958 | { |
7139f3c8 |
6959 | // XXX: is this enough? Maybe check hleSoftCall? |
d148d265 |
6960 | void *beginning=start_block(); |
7139f3c8 |
6961 | u_int page=get_page(start); |
d148d265 |
6962 | |
7139f3c8 |
6963 | invalid_code[start>>12]=0; |
6964 | emit_movimm(start,0); |
643aeae3 |
6965 | emit_writeword(0,&pcaddr); |
2a014d73 |
6966 | emit_far_jump(new_dyna_leave); |
15776b68 |
6967 | literal_pool(0); |
d148d265 |
6968 | end_block(beginning); |
03f55e6b |
6969 | ll_add_flags(jump_in+page,start,state_rflags,(void *)beginning); |
7139f3c8 |
6970 | return 0; |
6971 | } |
03f55e6b |
6972 | |
6973 | source = get_source_start(start, &pagelimit); |
6974 | if (source == NULL) { |
6975 | SysPrintf("Compile at bogus memory address: %08x\n", addr); |
7c3a5182 |
6976 | abort(); |
57871462 |
6977 | } |
6978 | |
6979 | /* Pass 1: disassemble */ |
6980 | /* Pass 2: register dependencies, branch targets */ |
6981 | /* Pass 3: register allocation */ |
6982 | /* Pass 4: branch dependencies */ |
6983 | /* Pass 5: pre-alloc */ |
6984 | /* Pass 6: optimize clean/dirty state */ |
6985 | /* Pass 7: flag 32-bit registers */ |
6986 | /* Pass 8: assembly */ |
6987 | /* Pass 9: linker */ |
6988 | /* Pass 10: garbage collection / free memory */ |
6989 | |
03f55e6b |
6990 | int j; |
57871462 |
6991 | int done=0; |
6992 | unsigned int type,op,op2; |
6993 | |
6994 | //printf("addr = %x source = %x %x\n", addr,source,source[0]); |
9f51b4b9 |
6995 | |
57871462 |
6996 | /* Pass 1 disassembly */ |
6997 | |
6998 | for(i=0;!done;i++) { |
e1190b87 |
6999 | bt[i]=0;likely[i]=0;ooo[i]=0;op2=0; |
7000 | minimum_free_regs[i]=0; |
57871462 |
7001 | opcode[i]=op=source[i]>>26; |
7002 | switch(op) |
7003 | { |
7004 | case 0x00: strcpy(insn[i],"special"); type=NI; |
7005 | op2=source[i]&0x3f; |
7006 | switch(op2) |
7007 | { |
7008 | case 0x00: strcpy(insn[i],"SLL"); type=SHIFTIMM; break; |
7009 | case 0x02: strcpy(insn[i],"SRL"); type=SHIFTIMM; break; |
7010 | case 0x03: strcpy(insn[i],"SRA"); type=SHIFTIMM; break; |
7011 | case 0x04: strcpy(insn[i],"SLLV"); type=SHIFT; break; |
7012 | case 0x06: strcpy(insn[i],"SRLV"); type=SHIFT; break; |
7013 | case 0x07: strcpy(insn[i],"SRAV"); type=SHIFT; break; |
7014 | case 0x08: strcpy(insn[i],"JR"); type=RJUMP; break; |
7015 | case 0x09: strcpy(insn[i],"JALR"); type=RJUMP; break; |
7016 | case 0x0C: strcpy(insn[i],"SYSCALL"); type=SYSCALL; break; |
7017 | case 0x0D: strcpy(insn[i],"BREAK"); type=OTHER; break; |
7018 | case 0x0F: strcpy(insn[i],"SYNC"); type=OTHER; break; |
7019 | case 0x10: strcpy(insn[i],"MFHI"); type=MOV; break; |
7020 | case 0x11: strcpy(insn[i],"MTHI"); type=MOV; break; |
7021 | case 0x12: strcpy(insn[i],"MFLO"); type=MOV; break; |
7022 | case 0x13: strcpy(insn[i],"MTLO"); type=MOV; break; |
57871462 |
7023 | case 0x18: strcpy(insn[i],"MULT"); type=MULTDIV; break; |
7024 | case 0x19: strcpy(insn[i],"MULTU"); type=MULTDIV; break; |
7025 | case 0x1A: strcpy(insn[i],"DIV"); type=MULTDIV; break; |
7026 | case 0x1B: strcpy(insn[i],"DIVU"); type=MULTDIV; break; |
57871462 |
7027 | case 0x20: strcpy(insn[i],"ADD"); type=ALU; break; |
7028 | case 0x21: strcpy(insn[i],"ADDU"); type=ALU; break; |
7029 | case 0x22: strcpy(insn[i],"SUB"); type=ALU; break; |
7030 | case 0x23: strcpy(insn[i],"SUBU"); type=ALU; break; |
7031 | case 0x24: strcpy(insn[i],"AND"); type=ALU; break; |
7032 | case 0x25: strcpy(insn[i],"OR"); type=ALU; break; |
7033 | case 0x26: strcpy(insn[i],"XOR"); type=ALU; break; |
7034 | case 0x27: strcpy(insn[i],"NOR"); type=ALU; break; |
7035 | case 0x2A: strcpy(insn[i],"SLT"); type=ALU; break; |
7036 | case 0x2B: strcpy(insn[i],"SLTU"); type=ALU; break; |
57871462 |
7037 | case 0x30: strcpy(insn[i],"TGE"); type=NI; break; |
7038 | case 0x31: strcpy(insn[i],"TGEU"); type=NI; break; |
7039 | case 0x32: strcpy(insn[i],"TLT"); type=NI; break; |
7040 | case 0x33: strcpy(insn[i],"TLTU"); type=NI; break; |
7041 | case 0x34: strcpy(insn[i],"TEQ"); type=NI; break; |
7042 | case 0x36: strcpy(insn[i],"TNE"); type=NI; break; |
71e490c5 |
7043 | #if 0 |
7f2607ea |
7044 | case 0x14: strcpy(insn[i],"DSLLV"); type=SHIFT; break; |
7045 | case 0x16: strcpy(insn[i],"DSRLV"); type=SHIFT; break; |
7046 | case 0x17: strcpy(insn[i],"DSRAV"); type=SHIFT; break; |
7047 | case 0x1C: strcpy(insn[i],"DMULT"); type=MULTDIV; break; |
7048 | case 0x1D: strcpy(insn[i],"DMULTU"); type=MULTDIV; break; |
7049 | case 0x1E: strcpy(insn[i],"DDIV"); type=MULTDIV; break; |
7050 | case 0x1F: strcpy(insn[i],"DDIVU"); type=MULTDIV; break; |
7051 | case 0x2C: strcpy(insn[i],"DADD"); type=ALU; break; |
7052 | case 0x2D: strcpy(insn[i],"DADDU"); type=ALU; break; |
7053 | case 0x2E: strcpy(insn[i],"DSUB"); type=ALU; break; |
7054 | case 0x2F: strcpy(insn[i],"DSUBU"); type=ALU; break; |
57871462 |
7055 | case 0x38: strcpy(insn[i],"DSLL"); type=SHIFTIMM; break; |
7056 | case 0x3A: strcpy(insn[i],"DSRL"); type=SHIFTIMM; break; |
7057 | case 0x3B: strcpy(insn[i],"DSRA"); type=SHIFTIMM; break; |
7058 | case 0x3C: strcpy(insn[i],"DSLL32"); type=SHIFTIMM; break; |
7059 | case 0x3E: strcpy(insn[i],"DSRL32"); type=SHIFTIMM; break; |
7060 | case 0x3F: strcpy(insn[i],"DSRA32"); type=SHIFTIMM; break; |
7f2607ea |
7061 | #endif |
57871462 |
7062 | } |
7063 | break; |
7064 | case 0x01: strcpy(insn[i],"regimm"); type=NI; |
7065 | op2=(source[i]>>16)&0x1f; |
7066 | switch(op2) |
7067 | { |
7068 | case 0x00: strcpy(insn[i],"BLTZ"); type=SJUMP; break; |
7069 | case 0x01: strcpy(insn[i],"BGEZ"); type=SJUMP; break; |
7070 | case 0x02: strcpy(insn[i],"BLTZL"); type=SJUMP; break; |
7071 | case 0x03: strcpy(insn[i],"BGEZL"); type=SJUMP; break; |
7072 | case 0x08: strcpy(insn[i],"TGEI"); type=NI; break; |
7073 | case 0x09: strcpy(insn[i],"TGEIU"); type=NI; break; |
7074 | case 0x0A: strcpy(insn[i],"TLTI"); type=NI; break; |
7075 | case 0x0B: strcpy(insn[i],"TLTIU"); type=NI; break; |
7076 | case 0x0C: strcpy(insn[i],"TEQI"); type=NI; break; |
7077 | case 0x0E: strcpy(insn[i],"TNEI"); type=NI; break; |
7078 | case 0x10: strcpy(insn[i],"BLTZAL"); type=SJUMP; break; |
7079 | case 0x11: strcpy(insn[i],"BGEZAL"); type=SJUMP; break; |
7080 | case 0x12: strcpy(insn[i],"BLTZALL"); type=SJUMP; break; |
7081 | case 0x13: strcpy(insn[i],"BGEZALL"); type=SJUMP; break; |
7082 | } |
7083 | break; |
7084 | case 0x02: strcpy(insn[i],"J"); type=UJUMP; break; |
7085 | case 0x03: strcpy(insn[i],"JAL"); type=UJUMP; break; |
7086 | case 0x04: strcpy(insn[i],"BEQ"); type=CJUMP; break; |
7087 | case 0x05: strcpy(insn[i],"BNE"); type=CJUMP; break; |
7088 | case 0x06: strcpy(insn[i],"BLEZ"); type=CJUMP; break; |
7089 | case 0x07: strcpy(insn[i],"BGTZ"); type=CJUMP; break; |
7090 | case 0x08: strcpy(insn[i],"ADDI"); type=IMM16; break; |
7091 | case 0x09: strcpy(insn[i],"ADDIU"); type=IMM16; break; |
7092 | case 0x0A: strcpy(insn[i],"SLTI"); type=IMM16; break; |
7093 | case 0x0B: strcpy(insn[i],"SLTIU"); type=IMM16; break; |
7094 | case 0x0C: strcpy(insn[i],"ANDI"); type=IMM16; break; |
7095 | case 0x0D: strcpy(insn[i],"ORI"); type=IMM16; break; |
7096 | case 0x0E: strcpy(insn[i],"XORI"); type=IMM16; break; |
7097 | case 0x0F: strcpy(insn[i],"LUI"); type=IMM16; break; |
7098 | case 0x10: strcpy(insn[i],"cop0"); type=NI; |
7099 | op2=(source[i]>>21)&0x1f; |
7100 | switch(op2) |
7101 | { |
7102 | case 0x00: strcpy(insn[i],"MFC0"); type=COP0; break; |
00fa9369 |
7103 | case 0x02: strcpy(insn[i],"CFC0"); type=COP0; break; |
57871462 |
7104 | case 0x04: strcpy(insn[i],"MTC0"); type=COP0; break; |
00fa9369 |
7105 | case 0x06: strcpy(insn[i],"CTC0"); type=COP0; break; |
7106 | case 0x10: strcpy(insn[i],"RFE"); type=COP0; break; |
57871462 |
7107 | } |
7108 | break; |
00fa9369 |
7109 | case 0x11: strcpy(insn[i],"cop1"); type=COP1; |
57871462 |
7110 | op2=(source[i]>>21)&0x1f; |
57871462 |
7111 | break; |
71e490c5 |
7112 | #if 0 |
57871462 |
7113 | case 0x14: strcpy(insn[i],"BEQL"); type=CJUMP; break; |
7114 | case 0x15: strcpy(insn[i],"BNEL"); type=CJUMP; break; |
7115 | case 0x16: strcpy(insn[i],"BLEZL"); type=CJUMP; break; |
7116 | case 0x17: strcpy(insn[i],"BGTZL"); type=CJUMP; break; |
7117 | case 0x18: strcpy(insn[i],"DADDI"); type=IMM16; break; |
7118 | case 0x19: strcpy(insn[i],"DADDIU"); type=IMM16; break; |
7119 | case 0x1A: strcpy(insn[i],"LDL"); type=LOADLR; break; |
7120 | case 0x1B: strcpy(insn[i],"LDR"); type=LOADLR; break; |
996cc15d |
7121 | #endif |
57871462 |
7122 | case 0x20: strcpy(insn[i],"LB"); type=LOAD; break; |
7123 | case 0x21: strcpy(insn[i],"LH"); type=LOAD; break; |
7124 | case 0x22: strcpy(insn[i],"LWL"); type=LOADLR; break; |
7125 | case 0x23: strcpy(insn[i],"LW"); type=LOAD; break; |
7126 | case 0x24: strcpy(insn[i],"LBU"); type=LOAD; break; |
7127 | case 0x25: strcpy(insn[i],"LHU"); type=LOAD; break; |
7128 | case 0x26: strcpy(insn[i],"LWR"); type=LOADLR; break; |
71e490c5 |
7129 | #if 0 |
57871462 |
7130 | case 0x27: strcpy(insn[i],"LWU"); type=LOAD; break; |
64bd6f82 |
7131 | #endif |
57871462 |
7132 | case 0x28: strcpy(insn[i],"SB"); type=STORE; break; |
7133 | case 0x29: strcpy(insn[i],"SH"); type=STORE; break; |
7134 | case 0x2A: strcpy(insn[i],"SWL"); type=STORELR; break; |
7135 | case 0x2B: strcpy(insn[i],"SW"); type=STORE; break; |
71e490c5 |
7136 | #if 0 |
57871462 |
7137 | case 0x2C: strcpy(insn[i],"SDL"); type=STORELR; break; |
7138 | case 0x2D: strcpy(insn[i],"SDR"); type=STORELR; break; |
996cc15d |
7139 | #endif |
57871462 |
7140 | case 0x2E: strcpy(insn[i],"SWR"); type=STORELR; break; |
7141 | case 0x2F: strcpy(insn[i],"CACHE"); type=NOP; break; |
7142 | case 0x30: strcpy(insn[i],"LL"); type=NI; break; |
7143 | case 0x31: strcpy(insn[i],"LWC1"); type=C1LS; break; |
71e490c5 |
7144 | #if 0 |
57871462 |
7145 | case 0x34: strcpy(insn[i],"LLD"); type=NI; break; |
7146 | case 0x35: strcpy(insn[i],"LDC1"); type=C1LS; break; |
7147 | case 0x37: strcpy(insn[i],"LD"); type=LOAD; break; |
996cc15d |
7148 | #endif |
57871462 |
7149 | case 0x38: strcpy(insn[i],"SC"); type=NI; break; |
7150 | case 0x39: strcpy(insn[i],"SWC1"); type=C1LS; break; |
71e490c5 |
7151 | #if 0 |
57871462 |
7152 | case 0x3C: strcpy(insn[i],"SCD"); type=NI; break; |
7153 | case 0x3D: strcpy(insn[i],"SDC1"); type=C1LS; break; |
7154 | case 0x3F: strcpy(insn[i],"SD"); type=STORE; break; |
996cc15d |
7155 | #endif |
b9b61529 |
7156 | case 0x12: strcpy(insn[i],"COP2"); type=NI; |
7157 | op2=(source[i]>>21)&0x1f; |
be516ebe |
7158 | //if (op2 & 0x10) |
bedfea38 |
7159 | if (source[i]&0x3f) { // use this hack to support old savestates with patched gte insns |
c7abc864 |
7160 | if (gte_handlers[source[i]&0x3f]!=NULL) { |
bedfea38 |
7161 | if (gte_regnames[source[i]&0x3f]!=NULL) |
7162 | strcpy(insn[i],gte_regnames[source[i]&0x3f]); |
7163 | else |
7164 | snprintf(insn[i], sizeof(insn[i]), "COP2 %x", source[i]&0x3f); |
c7abc864 |
7165 | type=C2OP; |
7166 | } |
7167 | } |
7168 | else switch(op2) |
b9b61529 |
7169 | { |
7170 | case 0x00: strcpy(insn[i],"MFC2"); type=COP2; break; |
7171 | case 0x02: strcpy(insn[i],"CFC2"); type=COP2; break; |
7172 | case 0x04: strcpy(insn[i],"MTC2"); type=COP2; break; |
7173 | case 0x06: strcpy(insn[i],"CTC2"); type=COP2; break; |
b9b61529 |
7174 | } |
7175 | break; |
7176 | case 0x32: strcpy(insn[i],"LWC2"); type=C2LS; break; |
7177 | case 0x3A: strcpy(insn[i],"SWC2"); type=C2LS; break; |
7178 | case 0x3B: strcpy(insn[i],"HLECALL"); type=HLECALL; break; |
90ae6d4e |
7179 | default: strcpy(insn[i],"???"); type=NI; |
c43b5311 |
7180 | SysPrintf("NI %08x @%08x (%08x)\n", source[i], addr + i*4, addr); |
90ae6d4e |
7181 | break; |
57871462 |
7182 | } |
7183 | itype[i]=type; |
7184 | opcode2[i]=op2; |
7185 | /* Get registers/immediates */ |
7186 | lt1[i]=0; |
57871462 |
7187 | dep1[i]=0; |
7188 | dep2[i]=0; |
bedfea38 |
7189 | gte_rs[i]=gte_rt[i]=0; |
57871462 |
7190 | switch(type) { |
7191 | case LOAD: |
7192 | rs1[i]=(source[i]>>21)&0x1f; |
7193 | rs2[i]=0; |
7194 | rt1[i]=(source[i]>>16)&0x1f; |
7195 | rt2[i]=0; |
7196 | imm[i]=(short)source[i]; |
7197 | break; |
7198 | case STORE: |
7199 | case STORELR: |
7200 | rs1[i]=(source[i]>>21)&0x1f; |
7201 | rs2[i]=(source[i]>>16)&0x1f; |
7202 | rt1[i]=0; |
7203 | rt2[i]=0; |
7204 | imm[i]=(short)source[i]; |
57871462 |
7205 | break; |
7206 | case LOADLR: |
7207 | // LWL/LWR only load part of the register, |
7208 | // therefore the target register must be treated as a source too |
7209 | rs1[i]=(source[i]>>21)&0x1f; |
7210 | rs2[i]=(source[i]>>16)&0x1f; |
7211 | rt1[i]=(source[i]>>16)&0x1f; |
7212 | rt2[i]=0; |
7213 | imm[i]=(short)source[i]; |
57871462 |
7214 | if(op==0x26) dep1[i]=rt1[i]; // LWR |
7215 | break; |
7216 | case IMM16: |
7217 | if (op==0x0f) rs1[i]=0; // LUI instruction has no source register |
7218 | else rs1[i]=(source[i]>>21)&0x1f; |
7219 | rs2[i]=0; |
7220 | rt1[i]=(source[i]>>16)&0x1f; |
7221 | rt2[i]=0; |
7222 | if(op>=0x0c&&op<=0x0e) { // ANDI/ORI/XORI |
7223 | imm[i]=(unsigned short)source[i]; |
7224 | }else{ |
7225 | imm[i]=(short)source[i]; |
7226 | } |
57871462 |
7227 | if(op==0x0d||op==0x0e) dep1[i]=rs1[i]; // ORI/XORI |
7228 | break; |
7229 | case UJUMP: |
7230 | rs1[i]=0; |
7231 | rs2[i]=0; |
7232 | rt1[i]=0; |
7233 | rt2[i]=0; |
7234 | // The JAL instruction writes to r31. |
7235 | if (op&1) { |
7236 | rt1[i]=31; |
7237 | } |
7238 | rs2[i]=CCREG; |
7239 | break; |
7240 | case RJUMP: |
7241 | rs1[i]=(source[i]>>21)&0x1f; |
7242 | rs2[i]=0; |
7243 | rt1[i]=0; |
7244 | rt2[i]=0; |
5067f341 |
7245 | // The JALR instruction writes to rd. |
57871462 |
7246 | if (op2&1) { |
5067f341 |
7247 | rt1[i]=(source[i]>>11)&0x1f; |
57871462 |
7248 | } |
7249 | rs2[i]=CCREG; |
7250 | break; |
7251 | case CJUMP: |
7252 | rs1[i]=(source[i]>>21)&0x1f; |
7253 | rs2[i]=(source[i]>>16)&0x1f; |
7254 | rt1[i]=0; |
7255 | rt2[i]=0; |
7256 | if(op&2) { // BGTZ/BLEZ |
7257 | rs2[i]=0; |
7258 | } |
57871462 |
7259 | likely[i]=op>>4; |
7260 | break; |
7261 | case SJUMP: |
7262 | rs1[i]=(source[i]>>21)&0x1f; |
7263 | rs2[i]=CCREG; |
7264 | rt1[i]=0; |
7265 | rt2[i]=0; |
57871462 |
7266 | if(op2&0x10) { // BxxAL |
7267 | rt1[i]=31; |
7268 | // NOTE: If the branch is not taken, r31 is still overwritten |
7269 | } |
7270 | likely[i]=(op2&2)>>1; |
7271 | break; |
57871462 |
7272 | case ALU: |
7273 | rs1[i]=(source[i]>>21)&0x1f; // source |
7274 | rs2[i]=(source[i]>>16)&0x1f; // subtract amount |
7275 | rt1[i]=(source[i]>>11)&0x1f; // destination |
7276 | rt2[i]=0; |
7c3a5182 |
7277 | if(op2>=0x24&&op2<=0x27) { // AND/OR/XOR/NOR |
57871462 |
7278 | dep1[i]=rs1[i];dep2[i]=rs2[i]; |
7279 | } |
7280 | else if(op2>=0x2c&&op2<=0x2f) { // DADD/DSUB |
7281 | dep1[i]=rs1[i];dep2[i]=rs2[i]; |
7282 | } |
7283 | break; |
7284 | case MULTDIV: |
7285 | rs1[i]=(source[i]>>21)&0x1f; // source |
7286 | rs2[i]=(source[i]>>16)&0x1f; // divisor |
7287 | rt1[i]=HIREG; |
7288 | rt2[i]=LOREG; |
57871462 |
7289 | break; |
7290 | case MOV: |
7291 | rs1[i]=0; |
7292 | rs2[i]=0; |
7293 | rt1[i]=0; |
7294 | rt2[i]=0; |
7295 | if(op2==0x10) rs1[i]=HIREG; // MFHI |
7296 | if(op2==0x11) rt1[i]=HIREG; // MTHI |
7297 | if(op2==0x12) rs1[i]=LOREG; // MFLO |
7298 | if(op2==0x13) rt1[i]=LOREG; // MTLO |
7299 | if((op2&0x1d)==0x10) rt1[i]=(source[i]>>11)&0x1f; // MFxx |
7300 | if((op2&0x1d)==0x11) rs1[i]=(source[i]>>21)&0x1f; // MTxx |
7301 | dep1[i]=rs1[i]; |
7302 | break; |
7303 | case SHIFT: |
7304 | rs1[i]=(source[i]>>16)&0x1f; // target of shift |
7305 | rs2[i]=(source[i]>>21)&0x1f; // shift amount |
7306 | rt1[i]=(source[i]>>11)&0x1f; // destination |
7307 | rt2[i]=0; |
57871462 |
7308 | break; |
7309 | case SHIFTIMM: |
7310 | rs1[i]=(source[i]>>16)&0x1f; |
7311 | rs2[i]=0; |
7312 | rt1[i]=(source[i]>>11)&0x1f; |
7313 | rt2[i]=0; |
7314 | imm[i]=(source[i]>>6)&0x1f; |
7315 | // DSxx32 instructions |
7316 | if(op2>=0x3c) imm[i]|=0x20; |
57871462 |
7317 | break; |
7318 | case COP0: |
7319 | rs1[i]=0; |
7320 | rs2[i]=0; |
7321 | rt1[i]=0; |
7322 | rt2[i]=0; |
00fa9369 |
7323 | if(op2==0||op2==2) rt1[i]=(source[i]>>16)&0x1F; // MFC0/CFC0 |
7324 | if(op2==4||op2==6) rs1[i]=(source[i]>>16)&0x1F; // MTC0/CTC0 |
57871462 |
7325 | if(op2==4&&((source[i]>>11)&0x1f)==12) rt2[i]=CSREG; // Status |
7326 | if(op2==16) if((source[i]&0x3f)==0x18) rs2[i]=CCREG; // ERET |
7327 | break; |
7328 | case COP1: |
7329 | rs1[i]=0; |
7330 | rs2[i]=0; |
7331 | rt1[i]=0; |
7332 | rt2[i]=0; |
7333 | if(op2<3) rt1[i]=(source[i]>>16)&0x1F; // MFC1/DMFC1/CFC1 |
7334 | if(op2>3) rs1[i]=(source[i]>>16)&0x1F; // MTC1/DMTC1/CTC1 |
57871462 |
7335 | rs2[i]=CSREG; |
7336 | break; |
bedfea38 |
7337 | case COP2: |
7338 | rs1[i]=0; |
7339 | rs2[i]=0; |
7340 | rt1[i]=0; |
7341 | rt2[i]=0; |
7342 | if(op2<3) rt1[i]=(source[i]>>16)&0x1F; // MFC2/CFC2 |
7343 | if(op2>3) rs1[i]=(source[i]>>16)&0x1F; // MTC2/CTC2 |
7344 | rs2[i]=CSREG; |
7345 | int gr=(source[i]>>11)&0x1F; |
7346 | switch(op2) |
7347 | { |
7348 | case 0x00: gte_rs[i]=1ll<<gr; break; // MFC2 |
7349 | case 0x04: gte_rt[i]=1ll<<gr; break; // MTC2 |
0ff8c62c |
7350 | case 0x02: gte_rs[i]=1ll<<(gr+32); break; // CFC2 |
bedfea38 |
7351 | case 0x06: gte_rt[i]=1ll<<(gr+32); break; // CTC2 |
7352 | } |
7353 | break; |
57871462 |
7354 | case C1LS: |
7355 | rs1[i]=(source[i]>>21)&0x1F; |
7356 | rs2[i]=CSREG; |
7357 | rt1[i]=0; |
7358 | rt2[i]=0; |
7359 | imm[i]=(short)source[i]; |
7360 | break; |
b9b61529 |
7361 | case C2LS: |
7362 | rs1[i]=(source[i]>>21)&0x1F; |
7363 | rs2[i]=0; |
7364 | rt1[i]=0; |
7365 | rt2[i]=0; |
7366 | imm[i]=(short)source[i]; |
bedfea38 |
7367 | if(op==0x32) gte_rt[i]=1ll<<((source[i]>>16)&0x1F); // LWC2 |
7368 | else gte_rs[i]=1ll<<((source[i]>>16)&0x1F); // SWC2 |
7369 | break; |
7370 | case C2OP: |
7371 | rs1[i]=0; |
7372 | rs2[i]=0; |
7373 | rt1[i]=0; |
7374 | rt2[i]=0; |
2167bef6 |
7375 | gte_rs[i]=gte_reg_reads[source[i]&0x3f]; |
7376 | gte_rt[i]=gte_reg_writes[source[i]&0x3f]; |
7377 | gte_rt[i]|=1ll<<63; // every op changes flags |
587a5b1c |
7378 | if((source[i]&0x3f)==GTE_MVMVA) { |
7379 | int v = (source[i] >> 15) & 3; |
7380 | gte_rs[i]&=~0xe3fll; |
7381 | if(v==3) gte_rs[i]|=0xe00ll; |
7382 | else gte_rs[i]|=3ll<<(v*2); |
7383 | } |
b9b61529 |
7384 | break; |
57871462 |
7385 | case SYSCALL: |
7139f3c8 |
7386 | case HLECALL: |
1e973cb0 |
7387 | case INTCALL: |
57871462 |
7388 | rs1[i]=CCREG; |
7389 | rs2[i]=0; |
7390 | rt1[i]=0; |
7391 | rt2[i]=0; |
7392 | break; |
7393 | default: |
7394 | rs1[i]=0; |
7395 | rs2[i]=0; |
7396 | rt1[i]=0; |
7397 | rt2[i]=0; |
7398 | } |
7399 | /* Calculate branch target addresses */ |
7400 | if(type==UJUMP) |
7401 | ba[i]=((start+i*4+4)&0xF0000000)|(((unsigned int)source[i]<<6)>>4); |
7402 | else if(type==CJUMP&&rs1[i]==rs2[i]&&(op&1)) |
7403 | ba[i]=start+i*4+8; // Ignore never taken branch |
7404 | else if(type==SJUMP&&rs1[i]==0&&!(op2&1)) |
7405 | ba[i]=start+i*4+8; // Ignore never taken branch |
ad49de89 |
7406 | else if(type==CJUMP||type==SJUMP) |
57871462 |
7407 | ba[i]=start+i*4+4+((signed int)((unsigned int)source[i]<<16)>>14); |
7408 | else ba[i]=-1; |
07cd0bc4 |
7409 | if (i > 0 && is_jump(i-1)) { |
3e535354 |
7410 | int do_in_intrp=0; |
7411 | // branch in delay slot? |
ad49de89 |
7412 | if(type==RJUMP||type==UJUMP||type==CJUMP||type==SJUMP) { |
3e535354 |
7413 | // don't handle first branch and call interpreter if it's hit |
c43b5311 |
7414 | SysPrintf("branch in delay slot @%08x (%08x)\n", addr + i*4, addr); |
3e535354 |
7415 | do_in_intrp=1; |
7416 | } |
7417 | // basic load delay detection |
7418 | else if((type==LOAD||type==LOADLR||type==COP0||type==COP2||type==C2LS)&&rt1[i]!=0) { |
7419 | int t=(ba[i-1]-start)/4; |
7420 | if(0 <= t && t < i &&(rt1[i]==rs1[t]||rt1[i]==rs2[t])&&itype[t]!=CJUMP&&itype[t]!=SJUMP) { |
7421 | // jump target wants DS result - potential load delay effect |
c43b5311 |
7422 | SysPrintf("load delay @%08x (%08x)\n", addr + i*4, addr); |
3e535354 |
7423 | do_in_intrp=1; |
7424 | bt[t+1]=1; // expected return from interpreter |
7425 | } |
7426 | else if(i>=2&&rt1[i-2]==2&&rt1[i]==2&&rs1[i]!=2&&rs2[i]!=2&&rs1[i-1]!=2&&rs2[i-1]!=2&& |
07cd0bc4 |
7427 | !(i>=3&&is_jump(i-3))) { |
3e535354 |
7428 | // v0 overwrite like this is a sign of trouble, bail out |
c43b5311 |
7429 | SysPrintf("v0 overwrite @%08x (%08x)\n", addr + i*4, addr); |
3e535354 |
7430 | do_in_intrp=1; |
7431 | } |
7432 | } |
3e535354 |
7433 | if(do_in_intrp) { |
7434 | rs1[i-1]=CCREG; |
7435 | rs2[i-1]=rt1[i-1]=rt2[i-1]=0; |
26869094 |
7436 | ba[i-1]=-1; |
7437 | itype[i-1]=INTCALL; |
7438 | done=2; |
3e535354 |
7439 | i--; // don't compile the DS |
26869094 |
7440 | } |
3e535354 |
7441 | } |
3e535354 |
7442 | /* Is this the end of the block? */ |
07cd0bc4 |
7443 | if (i > 0 && is_ujump(i-1)) { |
5067f341 |
7444 | if(rt1[i-1]==0) { // Continue past subroutine call (JAL) |
1e973cb0 |
7445 | done=2; |
57871462 |
7446 | } |
7447 | else { |
7448 | if(stop_after_jal) done=1; |
7449 | // Stop on BREAK |
7450 | if((source[i+1]&0xfc00003f)==0x0d) done=1; |
7451 | } |
7452 | // Don't recompile stuff that's already compiled |
7453 | if(check_addr(start+i*4+4)) done=1; |
7454 | // Don't get too close to the limit |
7455 | if(i>MAXBLOCK/2) done=1; |
7456 | } |
75dec299 |
7457 | if(itype[i]==SYSCALL&&stop_after_jal) done=1; |
1e973cb0 |
7458 | if(itype[i]==HLECALL||itype[i]==INTCALL) done=2; |
7459 | if(done==2) { |
7460 | // Does the block continue due to a branch? |
7461 | for(j=i-1;j>=0;j--) |
7462 | { |
2a706964 |
7463 | if(ba[j]==start+i*4) done=j=0; // Branch into delay slot |
1e973cb0 |
7464 | if(ba[j]==start+i*4+4) done=j=0; |
7465 | if(ba[j]==start+i*4+8) done=j=0; |
7466 | } |
7467 | } |
75dec299 |
7468 | //assert(i<MAXBLOCK-1); |
57871462 |
7469 | if(start+i*4==pagelimit-4) done=1; |
7470 | assert(start+i*4<pagelimit); |
7471 | if (i==MAXBLOCK-1) done=1; |
7472 | // Stop if we're compiling junk |
7473 | if(itype[i]==NI&&opcode[i]==0x11) { |
7474 | done=stop_after_jal=1; |
c43b5311 |
7475 | SysPrintf("Disabled speculative precompilation\n"); |
57871462 |
7476 | } |
7477 | } |
7478 | slen=i; |
ad49de89 |
7479 | if(itype[i-1]==UJUMP||itype[i-1]==CJUMP||itype[i-1]==SJUMP||itype[i-1]==RJUMP) { |
57871462 |
7480 | if(start+i*4==pagelimit) { |
7481 | itype[i-1]=SPAN; |
7482 | } |
7483 | } |
7484 | assert(slen>0); |
7485 | |
7486 | /* Pass 2 - Register dependencies and branch targets */ |
7487 | |
7488 | unneeded_registers(0,slen-1,0); |
9f51b4b9 |
7489 | |
57871462 |
7490 | /* Pass 3 - Register allocation */ |
7491 | |
7492 | struct regstat current; // Current register allocations/status |
57871462 |
7493 | current.dirty=0; |
7494 | current.u=unneeded_reg[0]; |
57871462 |
7495 | clear_all_regs(current.regmap); |
7496 | alloc_reg(¤t,0,CCREG); |
7497 | dirty_reg(¤t,CCREG); |
7498 | current.isconst=0; |
7499 | current.wasconst=0; |
27727b63 |
7500 | current.waswritten=0; |
57871462 |
7501 | int ds=0; |
7502 | int cc=0; |
5194fb95 |
7503 | int hr=-1; |
6ebf4adf |
7504 | |
57871462 |
7505 | if((u_int)addr&1) { |
7506 | // First instruction is delay slot |
7507 | cc=-1; |
7508 | bt[1]=1; |
7509 | ds=1; |
7510 | unneeded_reg[0]=1; |
57871462 |
7511 | current.regmap[HOST_BTREG]=BTREG; |
7512 | } |
9f51b4b9 |
7513 | |
57871462 |
7514 | for(i=0;i<slen;i++) |
7515 | { |
7516 | if(bt[i]) |
7517 | { |
7518 | int hr; |
7519 | for(hr=0;hr<HOST_REGS;hr++) |
7520 | { |
7521 | // Is this really necessary? |
7522 | if(current.regmap[hr]==0) current.regmap[hr]=-1; |
7523 | } |
7524 | current.isconst=0; |
27727b63 |
7525 | current.waswritten=0; |
57871462 |
7526 | } |
24385cae |
7527 | |
57871462 |
7528 | memcpy(regmap_pre[i],current.regmap,sizeof(current.regmap)); |
7529 | regs[i].wasconst=current.isconst; |
57871462 |
7530 | regs[i].wasdirty=current.dirty; |
8575a877 |
7531 | regs[i].loadedconst=0; |
ad49de89 |
7532 | if(itype[i]!=UJUMP&&itype[i]!=CJUMP&&itype[i]!=SJUMP&&itype[i]!=RJUMP) { |
57871462 |
7533 | if(i+1<slen) { |
7534 | current.u=unneeded_reg[i+1]&~((1LL<<rs1[i])|(1LL<<rs2[i])); |
57871462 |
7535 | current.u|=1; |
57871462 |
7536 | } else { |
7537 | current.u=1; |
57871462 |
7538 | } |
7539 | } else { |
7540 | if(i+1<slen) { |
7541 | current.u=branch_unneeded_reg[i]&~((1LL<<rs1[i+1])|(1LL<<rs2[i+1])); |
57871462 |
7542 | current.u&=~((1LL<<rs1[i])|(1LL<<rs2[i])); |
57871462 |
7543 | current.u|=1; |
7c3a5182 |
7544 | } else { SysPrintf("oops, branch at end of block with no delay slot\n");abort(); } |
57871462 |
7545 | } |
7546 | is_ds[i]=ds; |
7547 | if(ds) { |
7548 | ds=0; // Skip delay slot, already allocated as part of branch |
7549 | // ...but we need to alloc it in case something jumps here |
7550 | if(i+1<slen) { |
7551 | current.u=branch_unneeded_reg[i-1]&unneeded_reg[i+1]; |
57871462 |
7552 | }else{ |
7553 | current.u=branch_unneeded_reg[i-1]; |
57871462 |
7554 | } |
7555 | current.u&=~((1LL<<rs1[i])|(1LL<<rs2[i])); |
57871462 |
7556 | current.u|=1; |
57871462 |
7557 | struct regstat temp; |
7558 | memcpy(&temp,¤t,sizeof(current)); |
7559 | temp.wasdirty=temp.dirty; |
57871462 |
7560 | // TODO: Take into account unconditional branches, as below |
7561 | delayslot_alloc(&temp,i); |
7562 | memcpy(regs[i].regmap,temp.regmap,sizeof(temp.regmap)); |
7563 | regs[i].wasdirty=temp.wasdirty; |
57871462 |
7564 | regs[i].dirty=temp.dirty; |
57871462 |
7565 | regs[i].isconst=0; |
7566 | regs[i].wasconst=0; |
7567 | current.isconst=0; |
7568 | // Create entry (branch target) regmap |
7569 | for(hr=0;hr<HOST_REGS;hr++) |
7570 | { |
7571 | int r=temp.regmap[hr]; |
7572 | if(r>=0) { |
7573 | if(r!=regmap_pre[i][hr]) { |
7574 | regs[i].regmap_entry[hr]=-1; |
7575 | } |
7576 | else |
7577 | { |
7c3a5182 |
7578 | assert(r < 64); |
57871462 |
7579 | if((current.u>>r)&1) { |
7580 | regs[i].regmap_entry[hr]=-1; |
7581 | regs[i].regmap[hr]=-1; |
7582 | //Don't clear regs in the delay slot as the branch might need them |
7583 | //current.regmap[hr]=-1; |
7584 | }else |
7585 | regs[i].regmap_entry[hr]=r; |
57871462 |
7586 | } |
7587 | } else { |
7588 | // First instruction expects CCREG to be allocated |
9f51b4b9 |
7589 | if(i==0&&hr==HOST_CCREG) |
57871462 |
7590 | regs[i].regmap_entry[hr]=CCREG; |
7591 | else |
7592 | regs[i].regmap_entry[hr]=-1; |
7593 | } |
7594 | } |
7595 | } |
7596 | else { // Not delay slot |
7597 | switch(itype[i]) { |
7598 | case UJUMP: |
7599 | //current.isconst=0; // DEBUG |
7600 | //current.wasconst=0; // DEBUG |
7601 | //regs[i].wasconst=0; // DEBUG |
7602 | clear_const(¤t,rt1[i]); |
7603 | alloc_cc(¤t,i); |
7604 | dirty_reg(¤t,CCREG); |
7605 | if (rt1[i]==31) { |
7606 | alloc_reg(¤t,i,31); |
7607 | dirty_reg(¤t,31); |
4ef8f67d |
7608 | //assert(rs1[i+1]!=31&&rs2[i+1]!=31); |
7609 | //assert(rt1[i+1]!=rt1[i]); |
57871462 |
7610 | #ifdef REG_PREFETCH |
7611 | alloc_reg(¤t,i,PTEMP); |
7612 | #endif |
57871462 |
7613 | } |
269bb29a |
7614 | ooo[i]=1; |
7615 | delayslot_alloc(¤t,i+1); |
57871462 |
7616 | //current.isconst=0; // DEBUG |
7617 | ds=1; |
7618 | //printf("i=%d, isconst=%x\n",i,current.isconst); |
7619 | break; |
7620 | case RJUMP: |
7621 | //current.isconst=0; |
7622 | //current.wasconst=0; |
7623 | //regs[i].wasconst=0; |
7624 | clear_const(¤t,rs1[i]); |
7625 | clear_const(¤t,rt1[i]); |
7626 | alloc_cc(¤t,i); |
7627 | dirty_reg(¤t,CCREG); |
7628 | if(rs1[i]!=rt1[i+1]&&rs1[i]!=rt2[i+1]) { |
7629 | alloc_reg(¤t,i,rs1[i]); |
5067f341 |
7630 | if (rt1[i]!=0) { |
7631 | alloc_reg(¤t,i,rt1[i]); |
7632 | dirty_reg(¤t,rt1[i]); |
68b3faee |
7633 | assert(rs1[i+1]!=rt1[i]&&rs2[i+1]!=rt1[i]); |
076655d1 |
7634 | assert(rt1[i+1]!=rt1[i]); |
57871462 |
7635 | #ifdef REG_PREFETCH |
7636 | alloc_reg(¤t,i,PTEMP); |
7637 | #endif |
7638 | } |
7639 | #ifdef USE_MINI_HT |
7640 | if(rs1[i]==31) { // JALR |
7641 | alloc_reg(¤t,i,RHASH); |
57871462 |
7642 | alloc_reg(¤t,i,RHTBL); |
57871462 |
7643 | } |
7644 | #endif |
7645 | delayslot_alloc(¤t,i+1); |
7646 | } else { |
7647 | // The delay slot overwrites our source register, |
7648 | // allocate a temporary register to hold the old value. |
7649 | current.isconst=0; |
7650 | current.wasconst=0; |
7651 | regs[i].wasconst=0; |
7652 | delayslot_alloc(¤t,i+1); |
7653 | current.isconst=0; |
7654 | alloc_reg(¤t,i,RTEMP); |
7655 | } |
7656 | //current.isconst=0; // DEBUG |
e1190b87 |
7657 | ooo[i]=1; |
57871462 |
7658 | ds=1; |
7659 | break; |
7660 | case CJUMP: |
7661 | //current.isconst=0; |
7662 | //current.wasconst=0; |
7663 | //regs[i].wasconst=0; |
7664 | clear_const(¤t,rs1[i]); |
7665 | clear_const(¤t,rs2[i]); |
7666 | if((opcode[i]&0x3E)==4) // BEQ/BNE |
7667 | { |
7668 | alloc_cc(¤t,i); |
7669 | dirty_reg(¤t,CCREG); |
7670 | if(rs1[i]) alloc_reg(¤t,i,rs1[i]); |
7671 | if(rs2[i]) alloc_reg(¤t,i,rs2[i]); |
57871462 |
7672 | if((rs1[i]&&(rs1[i]==rt1[i+1]||rs1[i]==rt2[i+1]))|| |
7673 | (rs2[i]&&(rs2[i]==rt1[i+1]||rs2[i]==rt2[i+1]))) { |
7674 | // The delay slot overwrites one of our conditions. |
7675 | // Allocate the branch condition registers instead. |
57871462 |
7676 | current.isconst=0; |
7677 | current.wasconst=0; |
7678 | regs[i].wasconst=0; |
7679 | if(rs1[i]) alloc_reg(¤t,i,rs1[i]); |
7680 | if(rs2[i]) alloc_reg(¤t,i,rs2[i]); |
57871462 |
7681 | } |
e1190b87 |
7682 | else |
7683 | { |
7684 | ooo[i]=1; |
7685 | delayslot_alloc(¤t,i+1); |
7686 | } |
57871462 |
7687 | } |
7688 | else |
7689 | if((opcode[i]&0x3E)==6) // BLEZ/BGTZ |
7690 | { |
7691 | alloc_cc(¤t,i); |
7692 | dirty_reg(¤t,CCREG); |
7693 | alloc_reg(¤t,i,rs1[i]); |
57871462 |
7694 | if(rs1[i]&&(rs1[i]==rt1[i+1]||rs1[i]==rt2[i+1])) { |
7695 | // The delay slot overwrites one of our conditions. |
7696 | // Allocate the branch condition registers instead. |
57871462 |
7697 | current.isconst=0; |
7698 | current.wasconst=0; |
7699 | regs[i].wasconst=0; |
7700 | if(rs1[i]) alloc_reg(¤t,i,rs1[i]); |
57871462 |
7701 | } |
e1190b87 |
7702 | else |
7703 | { |
7704 | ooo[i]=1; |
7705 | delayslot_alloc(¤t,i+1); |
7706 | } |
57871462 |
7707 | } |
7708 | else |
7709 | // Don't alloc the delay slot yet because we might not execute it |
7710 | if((opcode[i]&0x3E)==0x14) // BEQL/BNEL |
7711 | { |
7712 | current.isconst=0; |
7713 | current.wasconst=0; |
7714 | regs[i].wasconst=0; |
7715 | alloc_cc(¤t,i); |
7716 | dirty_reg(¤t,CCREG); |
7717 | alloc_reg(¤t,i,rs1[i]); |
7718 | alloc_reg(¤t,i,rs2[i]); |
57871462 |
7719 | } |
7720 | else |
7721 | if((opcode[i]&0x3E)==0x16) // BLEZL/BGTZL |
7722 | { |
7723 | current.isconst=0; |
7724 | current.wasconst=0; |
7725 | regs[i].wasconst=0; |
7726 | alloc_cc(¤t,i); |
7727 | dirty_reg(¤t,CCREG); |
7728 | alloc_reg(¤t,i,rs1[i]); |
57871462 |
7729 | } |
7730 | ds=1; |
7731 | //current.isconst=0; |
7732 | break; |
7733 | case SJUMP: |
7734 | //current.isconst=0; |
7735 | //current.wasconst=0; |
7736 | //regs[i].wasconst=0; |
7737 | clear_const(¤t,rs1[i]); |
7738 | clear_const(¤t,rt1[i]); |
7739 | //if((opcode2[i]&0x1E)==0x0) // BLTZ/BGEZ |
7740 | if((opcode2[i]&0x0E)==0x0) // BLTZ/BGEZ |
7741 | { |
7742 | alloc_cc(¤t,i); |
7743 | dirty_reg(¤t,CCREG); |
7744 | alloc_reg(¤t,i,rs1[i]); |
57871462 |
7745 | if (rt1[i]==31) { // BLTZAL/BGEZAL |
7746 | alloc_reg(¤t,i,31); |
7747 | dirty_reg(¤t,31); |
57871462 |
7748 | //#ifdef REG_PREFETCH |
7749 | //alloc_reg(¤t,i,PTEMP); |
7750 | //#endif |
57871462 |
7751 | } |
e1190b87 |
7752 | if((rs1[i]&&(rs1[i]==rt1[i+1]||rs1[i]==rt2[i+1])) // The delay slot overwrites the branch condition. |
7753 | ||(rt1[i]==31&&(rs1[i+1]==31||rs2[i+1]==31||rt1[i+1]==31||rt2[i+1]==31))) { // DS touches $ra |
57871462 |
7754 | // Allocate the branch condition registers instead. |
57871462 |
7755 | current.isconst=0; |
7756 | current.wasconst=0; |
7757 | regs[i].wasconst=0; |
7758 | if(rs1[i]) alloc_reg(¤t,i,rs1[i]); |
57871462 |
7759 | } |
e1190b87 |
7760 | else |
7761 | { |
7762 | ooo[i]=1; |
7763 | delayslot_alloc(¤t,i+1); |
7764 | } |
57871462 |
7765 | } |
7766 | else |
7767 | // Don't alloc the delay slot yet because we might not execute it |
7768 | if((opcode2[i]&0x1E)==0x2) // BLTZL/BGEZL |
7769 | { |
7770 | current.isconst=0; |
7771 | current.wasconst=0; |
7772 | regs[i].wasconst=0; |
7773 | alloc_cc(¤t,i); |
7774 | dirty_reg(¤t,CCREG); |
7775 | alloc_reg(¤t,i,rs1[i]); |
57871462 |
7776 | } |
7777 | ds=1; |
7778 | //current.isconst=0; |
7779 | break; |
57871462 |
7780 | case IMM16: |
7781 | imm16_alloc(¤t,i); |
7782 | break; |
7783 | case LOAD: |
7784 | case LOADLR: |
7785 | load_alloc(¤t,i); |
7786 | break; |
7787 | case STORE: |
7788 | case STORELR: |
7789 | store_alloc(¤t,i); |
7790 | break; |
7791 | case ALU: |
7792 | alu_alloc(¤t,i); |
7793 | break; |
7794 | case SHIFT: |
7795 | shift_alloc(¤t,i); |
7796 | break; |
7797 | case MULTDIV: |
7798 | multdiv_alloc(¤t,i); |
7799 | break; |
7800 | case SHIFTIMM: |
7801 | shiftimm_alloc(¤t,i); |
7802 | break; |
7803 | case MOV: |
7804 | mov_alloc(¤t,i); |
7805 | break; |
7806 | case COP0: |
7807 | cop0_alloc(¤t,i); |
7808 | break; |
7809 | case COP1: |
81dbbf4c |
7810 | break; |
b9b61529 |
7811 | case COP2: |
81dbbf4c |
7812 | cop2_alloc(¤t,i); |
57871462 |
7813 | break; |
7814 | case C1LS: |
7815 | c1ls_alloc(¤t,i); |
7816 | break; |
b9b61529 |
7817 | case C2LS: |
7818 | c2ls_alloc(¤t,i); |
7819 | break; |
7820 | case C2OP: |
7821 | c2op_alloc(¤t,i); |
7822 | break; |
57871462 |
7823 | case SYSCALL: |
7139f3c8 |
7824 | case HLECALL: |
1e973cb0 |
7825 | case INTCALL: |
57871462 |
7826 | syscall_alloc(¤t,i); |
7827 | break; |
7828 | case SPAN: |
7829 | pagespan_alloc(¤t,i); |
7830 | break; |
7831 | } |
9f51b4b9 |
7832 | |
57871462 |
7833 | // Create entry (branch target) regmap |
7834 | for(hr=0;hr<HOST_REGS;hr++) |
7835 | { |
581335b0 |
7836 | int r,or; |
57871462 |
7837 | r=current.regmap[hr]; |
7838 | if(r>=0) { |
7839 | if(r!=regmap_pre[i][hr]) { |
7840 | // TODO: delay slot (?) |
7841 | or=get_reg(regmap_pre[i],r); // Get old mapping for this register |
7842 | if(or<0||(r&63)>=TEMPREG){ |
7843 | regs[i].regmap_entry[hr]=-1; |
7844 | } |
7845 | else |
7846 | { |
7847 | // Just move it to a different register |
7848 | regs[i].regmap_entry[hr]=r; |
7849 | // If it was dirty before, it's still dirty |
7850 | if((regs[i].wasdirty>>or)&1) dirty_reg(¤t,r&63); |
7851 | } |
7852 | } |
7853 | else |
7854 | { |
7855 | // Unneeded |
7856 | if(r==0){ |
7857 | regs[i].regmap_entry[hr]=0; |
7858 | } |
7859 | else |
7c3a5182 |
7860 | { |
7861 | assert(r<64); |
57871462 |
7862 | if((current.u>>r)&1) { |
7863 | regs[i].regmap_entry[hr]=-1; |
7864 | //regs[i].regmap[hr]=-1; |
7865 | current.regmap[hr]=-1; |
7866 | }else |
7867 | regs[i].regmap_entry[hr]=r; |
7868 | } |
57871462 |
7869 | } |
7870 | } else { |
7871 | // Branches expect CCREG to be allocated at the target |
9f51b4b9 |
7872 | if(regmap_pre[i][hr]==CCREG) |
57871462 |
7873 | regs[i].regmap_entry[hr]=CCREG; |
7874 | else |
7875 | regs[i].regmap_entry[hr]=-1; |
7876 | } |
7877 | } |
7878 | memcpy(regs[i].regmap,current.regmap,sizeof(current.regmap)); |
7879 | } |
27727b63 |
7880 | |
7881 | if(i>0&&(itype[i-1]==STORE||itype[i-1]==STORELR||(itype[i-1]==C2LS&&opcode[i-1]==0x3a))&&(u_int)imm[i-1]<0x800) |
7882 | current.waswritten|=1<<rs1[i-1]; |
7883 | current.waswritten&=~(1<<rt1[i]); |
7884 | current.waswritten&=~(1<<rt2[i]); |
7885 | if((itype[i]==STORE||itype[i]==STORELR||(itype[i]==C2LS&&opcode[i]==0x3a))&&(u_int)imm[i]>=0x800) |
7886 | current.waswritten&=~(1<<rs1[i]); |
7887 | |
57871462 |
7888 | /* Branch post-alloc */ |
7889 | if(i>0) |
7890 | { |
57871462 |
7891 | current.wasdirty=current.dirty; |
7892 | switch(itype[i-1]) { |
7893 | case UJUMP: |
7894 | memcpy(&branch_regs[i-1],¤t,sizeof(current)); |
7895 | branch_regs[i-1].isconst=0; |
7896 | branch_regs[i-1].wasconst=0; |
7897 | branch_regs[i-1].u=branch_unneeded_reg[i-1]&~((1LL<<rs1[i-1])|(1LL<<rs2[i-1])); |
57871462 |
7898 | alloc_cc(&branch_regs[i-1],i-1); |
7899 | dirty_reg(&branch_regs[i-1],CCREG); |
7900 | if(rt1[i-1]==31) { // JAL |
7901 | alloc_reg(&branch_regs[i-1],i-1,31); |
7902 | dirty_reg(&branch_regs[i-1],31); |
57871462 |
7903 | } |
7904 | memcpy(&branch_regs[i-1].regmap_entry,&branch_regs[i-1].regmap,sizeof(current.regmap)); |
40fca85b |
7905 | memcpy(constmap[i],constmap[i-1],sizeof(constmap[i])); |
57871462 |
7906 | break; |
7907 | case RJUMP: |
7908 | memcpy(&branch_regs[i-1],¤t,sizeof(current)); |
7909 | branch_regs[i-1].isconst=0; |
7910 | branch_regs[i-1].wasconst=0; |
7911 | branch_regs[i-1].u=branch_unneeded_reg[i-1]&~((1LL<<rs1[i-1])|(1LL<<rs2[i-1])); |
57871462 |
7912 | alloc_cc(&branch_regs[i-1],i-1); |
7913 | dirty_reg(&branch_regs[i-1],CCREG); |
7914 | alloc_reg(&branch_regs[i-1],i-1,rs1[i-1]); |
5067f341 |
7915 | if(rt1[i-1]!=0) { // JALR |
7916 | alloc_reg(&branch_regs[i-1],i-1,rt1[i-1]); |
7917 | dirty_reg(&branch_regs[i-1],rt1[i-1]); |
57871462 |
7918 | } |
7919 | #ifdef USE_MINI_HT |
7920 | if(rs1[i-1]==31) { // JALR |
7921 | alloc_reg(&branch_regs[i-1],i-1,RHASH); |
57871462 |
7922 | alloc_reg(&branch_regs[i-1],i-1,RHTBL); |
57871462 |
7923 | } |
7924 | #endif |
7925 | memcpy(&branch_regs[i-1].regmap_entry,&branch_regs[i-1].regmap,sizeof(current.regmap)); |
40fca85b |
7926 | memcpy(constmap[i],constmap[i-1],sizeof(constmap[i])); |
57871462 |
7927 | break; |
7928 | case CJUMP: |
7929 | if((opcode[i-1]&0x3E)==4) // BEQ/BNE |
7930 | { |
7931 | alloc_cc(¤t,i-1); |
7932 | dirty_reg(¤t,CCREG); |
7933 | if((rs1[i-1]&&(rs1[i-1]==rt1[i]||rs1[i-1]==rt2[i]))|| |
7934 | (rs2[i-1]&&(rs2[i-1]==rt1[i]||rs2[i-1]==rt2[i]))) { |
7935 | // The delay slot overwrote one of our conditions |
7936 | // Delay slot goes after the test (in order) |
7937 | current.u=branch_unneeded_reg[i-1]&~((1LL<<rs1[i])|(1LL<<rs2[i])); |
57871462 |
7938 | current.u|=1; |
57871462 |
7939 | delayslot_alloc(¤t,i); |
7940 | current.isconst=0; |
7941 | } |
7942 | else |
7943 | { |
7944 | current.u=branch_unneeded_reg[i-1]&~((1LL<<rs1[i-1])|(1LL<<rs2[i-1])); |
57871462 |
7945 | // Alloc the branch condition registers |
7946 | if(rs1[i-1]) alloc_reg(¤t,i-1,rs1[i-1]); |
7947 | if(rs2[i-1]) alloc_reg(¤t,i-1,rs2[i-1]); |
57871462 |
7948 | } |
7949 | memcpy(&branch_regs[i-1],¤t,sizeof(current)); |
7950 | branch_regs[i-1].isconst=0; |
7951 | branch_regs[i-1].wasconst=0; |
7952 | memcpy(&branch_regs[i-1].regmap_entry,¤t.regmap,sizeof(current.regmap)); |
40fca85b |
7953 | memcpy(constmap[i],constmap[i-1],sizeof(constmap[i])); |
57871462 |
7954 | } |
7955 | else |
7956 | if((opcode[i-1]&0x3E)==6) // BLEZ/BGTZ |
7957 | { |
7958 | alloc_cc(¤t,i-1); |
7959 | dirty_reg(¤t,CCREG); |
7960 | if(rs1[i-1]==rt1[i]||rs1[i-1]==rt2[i]) { |
7961 | // The delay slot overwrote the branch condition |
7962 | // Delay slot goes after the test (in order) |
7963 | current.u=branch_unneeded_reg[i-1]&~((1LL<<rs1[i])|(1LL<<rs2[i])); |
57871462 |
7964 | current.u|=1; |
57871462 |
7965 | delayslot_alloc(¤t,i); |
7966 | current.isconst=0; |
7967 | } |
7968 | else |
7969 | { |
7970 | current.u=branch_unneeded_reg[i-1]&~(1LL<<rs1[i-1]); |
57871462 |
7971 | // Alloc the branch condition register |
7972 | alloc_reg(¤t,i-1,rs1[i-1]); |
57871462 |
7973 | } |
7974 | memcpy(&branch_regs[i-1],¤t,sizeof(current)); |
7975 | branch_regs[i-1].isconst=0; |
7976 | branch_regs[i-1].wasconst=0; |
7977 | memcpy(&branch_regs[i-1].regmap_entry,¤t.regmap,sizeof(current.regmap)); |
40fca85b |
7978 | memcpy(constmap[i],constmap[i-1],sizeof(constmap[i])); |
57871462 |
7979 | } |
7980 | else |
7981 | // Alloc the delay slot in case the branch is taken |
7982 | if((opcode[i-1]&0x3E)==0x14) // BEQL/BNEL |
7983 | { |
7984 | memcpy(&branch_regs[i-1],¤t,sizeof(current)); |
7985 | branch_regs[i-1].u=(branch_unneeded_reg[i-1]&~((1LL<<rs1[i])|(1LL<<rs2[i])|(1LL<<rt1[i])|(1LL<<rt2[i])))|1; |
57871462 |
7986 | alloc_cc(&branch_regs[i-1],i); |
7987 | dirty_reg(&branch_regs[i-1],CCREG); |
7988 | delayslot_alloc(&branch_regs[i-1],i); |
7989 | branch_regs[i-1].isconst=0; |
7990 | alloc_reg(¤t,i,CCREG); // Not taken path |
7991 | dirty_reg(¤t,CCREG); |
7992 | memcpy(&branch_regs[i-1].regmap_entry,&branch_regs[i-1].regmap,sizeof(current.regmap)); |
7993 | } |
7994 | else |
7995 | if((opcode[i-1]&0x3E)==0x16) // BLEZL/BGTZL |
7996 | { |
7997 | memcpy(&branch_regs[i-1],¤t,sizeof(current)); |
7998 | branch_regs[i-1].u=(branch_unneeded_reg[i-1]&~((1LL<<rs1[i])|(1LL<<rs2[i])|(1LL<<rt1[i])|(1LL<<rt2[i])))|1; |
57871462 |
7999 | alloc_cc(&branch_regs[i-1],i); |
8000 | dirty_reg(&branch_regs[i-1],CCREG); |
8001 | delayslot_alloc(&branch_regs[i-1],i); |
8002 | branch_regs[i-1].isconst=0; |
8003 | alloc_reg(¤t,i,CCREG); // Not taken path |
8004 | dirty_reg(¤t,CCREG); |
8005 | memcpy(&branch_regs[i-1].regmap_entry,&branch_regs[i-1].regmap,sizeof(current.regmap)); |
8006 | } |
8007 | break; |
8008 | case SJUMP: |
8009 | //if((opcode2[i-1]&0x1E)==0) // BLTZ/BGEZ |
8010 | if((opcode2[i-1]&0x0E)==0) // BLTZ/BGEZ |
8011 | { |
8012 | alloc_cc(¤t,i-1); |
8013 | dirty_reg(¤t,CCREG); |
8014 | if(rs1[i-1]==rt1[i]||rs1[i-1]==rt2[i]) { |
8015 | // The delay slot overwrote the branch condition |
8016 | // Delay slot goes after the test (in order) |
8017 | current.u=branch_unneeded_reg[i-1]&~((1LL<<rs1[i])|(1LL<<rs2[i])); |
57871462 |
8018 | current.u|=1; |
57871462 |
8019 | delayslot_alloc(¤t,i); |
8020 | current.isconst=0; |
8021 | } |
8022 | else |
8023 | { |
8024 | current.u=branch_unneeded_reg[i-1]&~(1LL<<rs1[i-1]); |
57871462 |
8025 | // Alloc the branch condition register |
8026 | alloc_reg(¤t,i-1,rs1[i-1]); |
57871462 |
8027 | } |
8028 | memcpy(&branch_regs[i-1],¤t,sizeof(current)); |
8029 | branch_regs[i-1].isconst=0; |
8030 | branch_regs[i-1].wasconst=0; |
8031 | memcpy(&branch_regs[i-1].regmap_entry,¤t.regmap,sizeof(current.regmap)); |
40fca85b |
8032 | memcpy(constmap[i],constmap[i-1],sizeof(constmap[i])); |
57871462 |
8033 | } |
8034 | else |
8035 | // Alloc the delay slot in case the branch is taken |
8036 | if((opcode2[i-1]&0x1E)==2) // BLTZL/BGEZL |
8037 | { |
8038 | memcpy(&branch_regs[i-1],¤t,sizeof(current)); |
8039 | branch_regs[i-1].u=(branch_unneeded_reg[i-1]&~((1LL<<rs1[i])|(1LL<<rs2[i])|(1LL<<rt1[i])|(1LL<<rt2[i])))|1; |
57871462 |
8040 | alloc_cc(&branch_regs[i-1],i); |
8041 | dirty_reg(&branch_regs[i-1],CCREG); |
8042 | delayslot_alloc(&branch_regs[i-1],i); |
8043 | branch_regs[i-1].isconst=0; |
8044 | alloc_reg(¤t,i,CCREG); // Not taken path |
8045 | dirty_reg(¤t,CCREG); |
8046 | memcpy(&branch_regs[i-1].regmap_entry,&branch_regs[i-1].regmap,sizeof(current.regmap)); |
8047 | } |
8048 | // FIXME: BLTZAL/BGEZAL |
8049 | if(opcode2[i-1]&0x10) { // BxxZAL |
8050 | alloc_reg(&branch_regs[i-1],i-1,31); |
8051 | dirty_reg(&branch_regs[i-1],31); |
57871462 |
8052 | } |
8053 | break; |
57871462 |
8054 | } |
8055 | |
07cd0bc4 |
8056 | if (is_ujump(i-1)) |
57871462 |
8057 | { |
8058 | if(rt1[i-1]==31) // JAL/JALR |
8059 | { |
8060 | // Subroutine call will return here, don't alloc any registers |
57871462 |
8061 | current.dirty=0; |
8062 | clear_all_regs(current.regmap); |
8063 | alloc_reg(¤t,i,CCREG); |
8064 | dirty_reg(¤t,CCREG); |
8065 | } |
8066 | else if(i+1<slen) |
8067 | { |
8068 | // Internal branch will jump here, match registers to caller |
57871462 |
8069 | current.dirty=0; |
8070 | clear_all_regs(current.regmap); |
8071 | alloc_reg(¤t,i,CCREG); |
8072 | dirty_reg(¤t,CCREG); |
8073 | for(j=i-1;j>=0;j--) |
8074 | { |
8075 | if(ba[j]==start+i*4+4) { |
8076 | memcpy(current.regmap,branch_regs[j].regmap,sizeof(current.regmap)); |
57871462 |
8077 | current.dirty=branch_regs[j].dirty; |
8078 | break; |
8079 | } |
8080 | } |
8081 | while(j>=0) { |
8082 | if(ba[j]==start+i*4+4) { |
8083 | for(hr=0;hr<HOST_REGS;hr++) { |
8084 | if(current.regmap[hr]!=branch_regs[j].regmap[hr]) { |
8085 | current.regmap[hr]=-1; |
8086 | } |
57871462 |
8087 | current.dirty&=branch_regs[j].dirty; |
8088 | } |
8089 | } |
8090 | j--; |
8091 | } |
8092 | } |
8093 | } |
8094 | } |
8095 | |
8096 | // Count cycles in between branches |
8097 | ccadj[i]=cc; |
ad49de89 |
8098 | if(i>0&&(itype[i-1]==RJUMP||itype[i-1]==UJUMP||itype[i-1]==CJUMP||itype[i-1]==SJUMP||itype[i]==SYSCALL||itype[i]==HLECALL)) |
57871462 |
8099 | { |
8100 | cc=0; |
8101 | } |
71e490c5 |
8102 | #if !defined(DRC_DBG) |
054175e9 |
8103 | else if(itype[i]==C2OP&>e_cycletab[source[i]&0x3f]>2) |
8104 | { |
81dbbf4c |
8105 | // this should really be removed since the real stalls have been implemented, |
8106 | // but doing so causes sizeable perf regression against the older version |
8107 | u_int gtec = gte_cycletab[source[i] & 0x3f]; |
8108 | cc += HACK_ENABLED(NDHACK_GTE_NO_STALL) ? gtec/2 : 2; |
fb407447 |
8109 | } |
5fdcbb5a |
8110 | else if(i>1&&itype[i]==STORE&&itype[i-1]==STORE&&itype[i-2]==STORE&&!bt[i]) |
8111 | { |
8112 | cc+=4; |
8113 | } |
fb407447 |
8114 | else if(itype[i]==C2LS) |
8115 | { |
81dbbf4c |
8116 | // same as with C2OP |
8117 | cc += HACK_ENABLED(NDHACK_GTE_NO_STALL) ? 4 : 2; |
fb407447 |
8118 | } |
8119 | #endif |
57871462 |
8120 | else |
8121 | { |
8122 | cc++; |
8123 | } |
8124 | |
57871462 |
8125 | if(!is_ds[i]) { |
57871462 |
8126 | regs[i].dirty=current.dirty; |
8127 | regs[i].isconst=current.isconst; |
40fca85b |
8128 | memcpy(constmap[i],current_constmap,sizeof(constmap[i])); |
57871462 |
8129 | } |
8130 | for(hr=0;hr<HOST_REGS;hr++) { |
8131 | if(hr!=EXCLUDE_REG&®s[i].regmap[hr]>=0) { |
8132 | if(regmap_pre[i][hr]!=regs[i].regmap[hr]) { |
8133 | regs[i].wasconst&=~(1<<hr); |
8134 | } |
8135 | } |
8136 | } |
8137 | if(current.regmap[HOST_BTREG]==BTREG) current.regmap[HOST_BTREG]=-1; |
27727b63 |
8138 | regs[i].waswritten=current.waswritten; |
57871462 |
8139 | } |
9f51b4b9 |
8140 | |
57871462 |
8141 | /* Pass 4 - Cull unused host registers */ |
9f51b4b9 |
8142 | |
57871462 |
8143 | uint64_t nr=0; |
9f51b4b9 |
8144 | |
57871462 |
8145 | for (i=slen-1;i>=0;i--) |
8146 | { |
8147 | int hr; |
ad49de89 |
8148 | if(itype[i]==RJUMP||itype[i]==UJUMP||itype[i]==CJUMP||itype[i]==SJUMP) |
57871462 |
8149 | { |
8150 | if(ba[i]<start || ba[i]>=(start+slen*4)) |
8151 | { |
8152 | // Branch out of this block, don't need anything |
8153 | nr=0; |
8154 | } |
8155 | else |
8156 | { |
8157 | // Internal branch |
8158 | // Need whatever matches the target |
8159 | nr=0; |
8160 | int t=(ba[i]-start)>>2; |
8161 | for(hr=0;hr<HOST_REGS;hr++) |
8162 | { |
8163 | if(regs[i].regmap_entry[hr]>=0) { |
8164 | if(regs[i].regmap_entry[hr]==regs[t].regmap_entry[hr]) nr|=1<<hr; |
8165 | } |
8166 | } |
8167 | } |
8168 | // Conditional branch may need registers for following instructions |
07cd0bc4 |
8169 | if (!is_ujump(i)) |
57871462 |
8170 | { |
8171 | if(i<slen-2) { |
8172 | nr|=needed_reg[i+2]; |
8173 | for(hr=0;hr<HOST_REGS;hr++) |
8174 | { |
8175 | if(regmap_pre[i+2][hr]>=0&&get_reg(regs[i+2].regmap_entry,regmap_pre[i+2][hr])<0) nr&=~(1<<hr); |
8176 | //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]); |
8177 | } |
8178 | } |
8179 | } |
8180 | // Don't need stuff which is overwritten |
f5955059 |
8181 | //if(regs[i].regmap[hr]!=regmap_pre[i][hr]) nr&=~(1<<hr); |
8182 | //if(regs[i].regmap[hr]<0) nr&=~(1<<hr); |
57871462 |
8183 | // Merge in delay slot |
8184 | for(hr=0;hr<HOST_REGS;hr++) |
8185 | { |
8186 | if(!likely[i]) { |
8187 | // These are overwritten unless the branch is "likely" |
8188 | // and the delay slot is nullified if not taken |
8189 | if(rt1[i+1]&&rt1[i+1]==(regs[i].regmap[hr]&63)) nr&=~(1<<hr); |
8190 | if(rt2[i+1]&&rt2[i+1]==(regs[i].regmap[hr]&63)) nr&=~(1<<hr); |
8191 | } |
57871462 |
8192 | if(rs1[i+1]==regmap_pre[i][hr]) nr|=1<<hr; |
8193 | if(rs2[i+1]==regmap_pre[i][hr]) nr|=1<<hr; |
57871462 |
8194 | if(rs1[i+1]==regs[i].regmap_entry[hr]) nr|=1<<hr; |
8195 | if(rs2[i+1]==regs[i].regmap_entry[hr]) nr|=1<<hr; |
b9b61529 |
8196 | if(itype[i+1]==STORE || itype[i+1]==STORELR || (opcode[i+1]&0x3b)==0x39 || (opcode[i+1]&0x3b)==0x3a) { |
57871462 |
8197 | if(regmap_pre[i][hr]==INVCP) nr|=1<<hr; |
8198 | if(regs[i].regmap_entry[hr]==INVCP) nr|=1<<hr; |
8199 | } |
8200 | } |
8201 | } |
1e973cb0 |
8202 | else if(itype[i]==SYSCALL||itype[i]==HLECALL||itype[i]==INTCALL) |
57871462 |
8203 | { |
8204 | // SYSCALL instruction (software interrupt) |
8205 | nr=0; |
8206 | } |
8207 | else if(itype[i]==COP0 && (source[i]&0x3f)==0x18) |
8208 | { |
8209 | // ERET instruction (return from interrupt) |
8210 | nr=0; |
8211 | } |
8212 | else // Non-branch |
8213 | { |
8214 | if(i<slen-1) { |
8215 | for(hr=0;hr<HOST_REGS;hr++) { |
8216 | if(regmap_pre[i+1][hr]>=0&&get_reg(regs[i+1].regmap_entry,regmap_pre[i+1][hr])<0) nr&=~(1<<hr); |
8217 | if(regs[i].regmap[hr]!=regmap_pre[i+1][hr]) nr&=~(1<<hr); |
8218 | if(regs[i].regmap[hr]!=regmap_pre[i][hr]) nr&=~(1<<hr); |
8219 | if(regs[i].regmap[hr]<0) nr&=~(1<<hr); |
8220 | } |
8221 | } |
8222 | } |
8223 | for(hr=0;hr<HOST_REGS;hr++) |
8224 | { |
8225 | // Overwritten registers are not needed |
8226 | if(rt1[i]&&rt1[i]==(regs[i].regmap[hr]&63)) nr&=~(1<<hr); |
8227 | if(rt2[i]&&rt2[i]==(regs[i].regmap[hr]&63)) nr&=~(1<<hr); |
8228 | if(FTEMP==(regs[i].regmap[hr]&63)) nr&=~(1<<hr); |
8229 | // Source registers are needed |
57871462 |
8230 | if(rs1[i]==regmap_pre[i][hr]) nr|=1<<hr; |
8231 | if(rs2[i]==regmap_pre[i][hr]) nr|=1<<hr; |
57871462 |
8232 | if(rs1[i]==regs[i].regmap_entry[hr]) nr|=1<<hr; |
8233 | if(rs2[i]==regs[i].regmap_entry[hr]) nr|=1<<hr; |
b9b61529 |
8234 | if(itype[i]==STORE || itype[i]==STORELR || (opcode[i]&0x3b)==0x39 || (opcode[i]&0x3b)==0x3a) { |
57871462 |
8235 | if(regmap_pre[i][hr]==INVCP) nr|=1<<hr; |
8236 | if(regs[i].regmap_entry[hr]==INVCP) nr|=1<<hr; |
8237 | } |
8238 | // Don't store a register immediately after writing it, |
8239 | // may prevent dual-issue. |
8240 | // But do so if this is a branch target, otherwise we |
8241 | // might have to load the register before the branch. |
8242 | if(i>0&&!bt[i]&&((regs[i].wasdirty>>hr)&1)) { |
7c3a5182 |
8243 | if((regmap_pre[i][hr]>0&&!((unneeded_reg[i]>>regmap_pre[i][hr])&1))) { |
57871462 |
8244 | if(rt1[i-1]==(regmap_pre[i][hr]&63)) nr|=1<<hr; |
8245 | if(rt2[i-1]==(regmap_pre[i][hr]&63)) nr|=1<<hr; |
8246 | } |
7c3a5182 |
8247 | if((regs[i].regmap_entry[hr]>0&&!((unneeded_reg[i]>>regs[i].regmap_entry[hr])&1))) { |
57871462 |
8248 | if(rt1[i-1]==(regs[i].regmap_entry[hr]&63)) nr|=1<<hr; |
8249 | if(rt2[i-1]==(regs[i].regmap_entry[hr]&63)) nr|=1<<hr; |
8250 | } |
8251 | } |
8252 | } |
8253 | // Cycle count is needed at branches. Assume it is needed at the target too. |
ad49de89 |
8254 | if(i==0||bt[i]||itype[i]==CJUMP||itype[i]==SPAN) { |
57871462 |
8255 | if(regmap_pre[i][HOST_CCREG]==CCREG) nr|=1<<HOST_CCREG; |
8256 | if(regs[i].regmap_entry[HOST_CCREG]==CCREG) nr|=1<<HOST_CCREG; |
8257 | } |
8258 | // Save it |
8259 | needed_reg[i]=nr; |
9f51b4b9 |
8260 | |
57871462 |
8261 | // Deallocate unneeded registers |
8262 | for(hr=0;hr<HOST_REGS;hr++) |
8263 | { |
8264 | if(!((nr>>hr)&1)) { |
8265 | if(regs[i].regmap_entry[hr]!=CCREG) regs[i].regmap_entry[hr]=-1; |
8266 | if((regs[i].regmap[hr]&63)!=rs1[i] && (regs[i].regmap[hr]&63)!=rs2[i] && |
8267 | (regs[i].regmap[hr]&63)!=rt1[i] && (regs[i].regmap[hr]&63)!=rt2[i] && |
8268 | (regs[i].regmap[hr]&63)!=PTEMP && (regs[i].regmap[hr]&63)!=CCREG) |
8269 | { |
07cd0bc4 |
8270 | if (!is_ujump(i)) |
57871462 |
8271 | { |
8272 | if(likely[i]) { |
8273 | regs[i].regmap[hr]=-1; |
8274 | regs[i].isconst&=~(1<<hr); |
79c75f1b |
8275 | if(i<slen-2) { |
8276 | regmap_pre[i+2][hr]=-1; |
8277 | regs[i+2].wasconst&=~(1<<hr); |
8278 | } |
57871462 |
8279 | } |
8280 | } |
8281 | } |
ad49de89 |
8282 | if(itype[i]==RJUMP||itype[i]==UJUMP||itype[i]==CJUMP||itype[i]==SJUMP) |
57871462 |
8283 | { |
7c3a5182 |
8284 | int map=0,temp=0; |
b9b61529 |
8285 | if(itype[i+1]==STORE || itype[i+1]==STORELR || |
8286 | (opcode[i+1]&0x3b)==0x39 || (opcode[i+1]&0x3b)==0x3a) { // SWC1/SDC1 || SWC2/SDC2 |
57871462 |
8287 | map=INVCP; |
8288 | } |
8289 | if(itype[i+1]==LOADLR || itype[i+1]==STORELR || |
b9b61529 |
8290 | itype[i+1]==C1LS || itype[i+1]==C2LS) |
57871462 |
8291 | temp=FTEMP; |
8292 | if((regs[i].regmap[hr]&63)!=rs1[i] && (regs[i].regmap[hr]&63)!=rs2[i] && |
8293 | (regs[i].regmap[hr]&63)!=rt1[i] && (regs[i].regmap[hr]&63)!=rt2[i] && |
8294 | (regs[i].regmap[hr]&63)!=rt1[i+1] && (regs[i].regmap[hr]&63)!=rt2[i+1] && |
57871462 |
8295 | regs[i].regmap[hr]!=rs1[i+1] && regs[i].regmap[hr]!=rs2[i+1] && |
8296 | (regs[i].regmap[hr]&63)!=temp && regs[i].regmap[hr]!=PTEMP && |
8297 | regs[i].regmap[hr]!=RHASH && regs[i].regmap[hr]!=RHTBL && |
8298 | regs[i].regmap[hr]!=RTEMP && regs[i].regmap[hr]!=CCREG && |
8299 | regs[i].regmap[hr]!=map ) |
8300 | { |
8301 | regs[i].regmap[hr]=-1; |
8302 | regs[i].isconst&=~(1<<hr); |
8303 | if((branch_regs[i].regmap[hr]&63)!=rs1[i] && (branch_regs[i].regmap[hr]&63)!=rs2[i] && |
8304 | (branch_regs[i].regmap[hr]&63)!=rt1[i] && (branch_regs[i].regmap[hr]&63)!=rt2[i] && |
8305 | (branch_regs[i].regmap[hr]&63)!=rt1[i+1] && (branch_regs[i].regmap[hr]&63)!=rt2[i+1] && |
57871462 |
8306 | branch_regs[i].regmap[hr]!=rs1[i+1] && branch_regs[i].regmap[hr]!=rs2[i+1] && |
8307 | (branch_regs[i].regmap[hr]&63)!=temp && branch_regs[i].regmap[hr]!=PTEMP && |
8308 | branch_regs[i].regmap[hr]!=RHASH && branch_regs[i].regmap[hr]!=RHTBL && |
8309 | branch_regs[i].regmap[hr]!=RTEMP && branch_regs[i].regmap[hr]!=CCREG && |
8310 | branch_regs[i].regmap[hr]!=map) |
8311 | { |
8312 | branch_regs[i].regmap[hr]=-1; |
8313 | branch_regs[i].regmap_entry[hr]=-1; |
07cd0bc4 |
8314 | if (!is_ujump(i)) |
57871462 |
8315 | { |
8316 | if(!likely[i]&&i<slen-2) { |
8317 | regmap_pre[i+2][hr]=-1; |
79c75f1b |
8318 | regs[i+2].wasconst&=~(1<<hr); |
57871462 |
8319 | } |
8320 | } |
8321 | } |
8322 | } |
8323 | } |
8324 | else |
8325 | { |
8326 | // Non-branch |
8327 | if(i>0) |
8328 | { |
7c3a5182 |
8329 | int map=-1,temp=-1; |
1edfcc68 |
8330 | if(itype[i]==STORE || itype[i]==STORELR || |
b9b61529 |
8331 | (opcode[i]&0x3b)==0x39 || (opcode[i]&0x3b)==0x3a) { // SWC1/SDC1 || SWC2/SDC2 |
57871462 |
8332 | map=INVCP; |
8333 | } |
8334 | if(itype[i]==LOADLR || itype[i]==STORELR || |
b9b61529 |
8335 | itype[i]==C1LS || itype[i]==C2LS) |
57871462 |
8336 | temp=FTEMP; |
8337 | if((regs[i].regmap[hr]&63)!=rt1[i] && (regs[i].regmap[hr]&63)!=rt2[i] && |
57871462 |
8338 | regs[i].regmap[hr]!=rs1[i] && regs[i].regmap[hr]!=rs2[i] && |
8339 | (regs[i].regmap[hr]&63)!=temp && regs[i].regmap[hr]!=map && |
8340 | (itype[i]!=SPAN||regs[i].regmap[hr]!=CCREG)) |
8341 | { |
8342 | if(i<slen-1&&!is_ds[i]) { |
ad49de89 |
8343 | assert(regs[i].regmap[hr]<64); |
afec9d44 |
8344 | if(regmap_pre[i+1][hr]!=-1 || regs[i].regmap[hr]>0) |
57871462 |
8345 | if(regmap_pre[i+1][hr]!=regs[i].regmap[hr]) |
57871462 |
8346 | { |
c43b5311 |
8347 | SysPrintf("fail: %x (%d %d!=%d)\n",start+i*4,hr,regmap_pre[i+1][hr],regs[i].regmap[hr]); |
57871462 |
8348 | assert(regmap_pre[i+1][hr]==regs[i].regmap[hr]); |
8349 | } |
8350 | regmap_pre[i+1][hr]=-1; |
8351 | if(regs[i+1].regmap_entry[hr]==CCREG) regs[i+1].regmap_entry[hr]=-1; |
79c75f1b |
8352 | regs[i+1].wasconst&=~(1<<hr); |
57871462 |
8353 | } |
8354 | regs[i].regmap[hr]=-1; |
8355 | regs[i].isconst&=~(1<<hr); |
8356 | } |
8357 | } |
8358 | } |
3968e69e |
8359 | } // if needed |
8360 | } // for hr |
57871462 |
8361 | } |
9f51b4b9 |
8362 | |
57871462 |
8363 | /* Pass 5 - Pre-allocate registers */ |
9f51b4b9 |
8364 | |
57871462 |
8365 | // If a register is allocated during a loop, try to allocate it for the |
8366 | // entire loop, if possible. This avoids loading/storing registers |
8367 | // inside of the loop. |
9f51b4b9 |
8368 | |
57871462 |
8369 | signed char f_regmap[HOST_REGS]; |
8370 | clear_all_regs(f_regmap); |
8371 | for(i=0;i<slen-1;i++) |
8372 | { |
ad49de89 |
8373 | if(itype[i]==UJUMP||itype[i]==CJUMP||itype[i]==SJUMP) |
57871462 |
8374 | { |
9f51b4b9 |
8375 | if(ba[i]>=start && ba[i]<(start+i*4)) |
57871462 |
8376 | if(itype[i+1]==NOP||itype[i+1]==MOV||itype[i+1]==ALU |
8377 | ||itype[i+1]==SHIFTIMM||itype[i+1]==IMM16||itype[i+1]==LOAD |
8378 | ||itype[i+1]==STORE||itype[i+1]==STORELR||itype[i+1]==C1LS |
00fa9369 |
8379 | ||itype[i+1]==SHIFT||itype[i+1]==COP1 |
b9b61529 |
8380 | ||itype[i+1]==COP2||itype[i+1]==C2LS||itype[i+1]==C2OP) |
57871462 |
8381 | { |
8382 | int t=(ba[i]-start)>>2; |
ad49de89 |
8383 | if(t>0&&(itype[t-1]!=UJUMP&&itype[t-1]!=RJUMP&&itype[t-1]!=CJUMP&&itype[t-1]!=SJUMP)) // loop_preload can't handle jumps into delay slots |
198df76f |
8384 | if(t<2||(itype[t-2]!=UJUMP&&itype[t-2]!=RJUMP)||rt1[t-2]!=31) // call/ret assumes no registers allocated |
57871462 |
8385 | for(hr=0;hr<HOST_REGS;hr++) |
8386 | { |
7c3a5182 |
8387 | if(regs[i].regmap[hr]>=0) { |
b372a952 |
8388 | if(f_regmap[hr]!=regs[i].regmap[hr]) { |
8389 | // dealloc old register |
8390 | int n; |
8391 | for(n=0;n<HOST_REGS;n++) |
8392 | { |
8393 | if(f_regmap[n]==regs[i].regmap[hr]) {f_regmap[n]=-1;} |
8394 | } |
8395 | // and alloc new one |
8396 | f_regmap[hr]=regs[i].regmap[hr]; |
8397 | } |
8398 | } |
7c3a5182 |
8399 | if(branch_regs[i].regmap[hr]>=0) { |
b372a952 |
8400 | if(f_regmap[hr]!=branch_regs[i].regmap[hr]) { |
8401 | // dealloc old register |
8402 | int n; |
8403 | for(n=0;n<HOST_REGS;n++) |
8404 | { |
8405 | if(f_regmap[n]==branch_regs[i].regmap[hr]) {f_regmap[n]=-1;} |
8406 | } |
8407 | // and alloc new one |
8408 | f_regmap[hr]=branch_regs[i].regmap[hr]; |
8409 | } |
8410 | } |
e1190b87 |
8411 | if(ooo[i]) { |
9f51b4b9 |
8412 | if(count_free_regs(regs[i].regmap)<=minimum_free_regs[i+1]) |
e1190b87 |
8413 | f_regmap[hr]=branch_regs[i].regmap[hr]; |
8414 | }else{ |
9f51b4b9 |
8415 | if(count_free_regs(branch_regs[i].regmap)<=minimum_free_regs[i+1]) |
57871462 |
8416 | f_regmap[hr]=branch_regs[i].regmap[hr]; |
8417 | } |
8418 | // Avoid dirty->clean transition |
e1190b87 |
8419 | #ifdef DESTRUCTIVE_WRITEBACK |
57871462 |
8420 | 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 |
8421 | #endif |
8422 | // This check is only strictly required in the DESTRUCTIVE_WRITEBACK |
8423 | // case above, however it's always a good idea. We can't hoist the |
8424 | // load if the register was already allocated, so there's no point |
8425 | // wasting time analyzing most of these cases. It only "succeeds" |
8426 | // when the mapping was different and the load can be replaced with |
8427 | // a mov, which is of negligible benefit. So such cases are |
8428 | // skipped below. |
57871462 |
8429 | if(f_regmap[hr]>0) { |
198df76f |
8430 | if(regs[t].regmap[hr]==f_regmap[hr]||(regs[t].regmap_entry[hr]<0&&get_reg(regmap_pre[t],f_regmap[hr])<0)) { |
57871462 |
8431 | int r=f_regmap[hr]; |
8432 | for(j=t;j<=i;j++) |
8433 | { |
8434 | //printf("Test %x -> %x, %x %d/%d\n",start+i*4,ba[i],start+j*4,hr,r); |
8435 | if(r<34&&((unneeded_reg[j]>>r)&1)) break; |
00fa9369 |
8436 | assert(r < 64); |
57871462 |
8437 | if(regs[j].regmap[hr]==f_regmap[hr]&&(f_regmap[hr]&63)<TEMPREG) { |
8438 | //printf("Hit %x -> %x, %x %d/%d\n",start+i*4,ba[i],start+j*4,hr,r); |
8439 | int k; |
8440 | if(regs[i].regmap[hr]==-1&&branch_regs[i].regmap[hr]==-1) { |
8441 | if(get_reg(regs[i+2].regmap,f_regmap[hr])>=0) break; |
8442 | if(r>63) { |
8443 | if(get_reg(regs[i].regmap,r&63)<0) break; |
8444 | if(get_reg(branch_regs[i].regmap,r&63)<0) break; |
8445 | } |
8446 | k=i; |
8447 | while(k>1&®s[k-1].regmap[hr]==-1) { |
e1190b87 |
8448 | if(count_free_regs(regs[k-1].regmap)<=minimum_free_regs[k-1]) { |
8449 | //printf("no free regs for store %x\n",start+(k-1)*4); |
8450 | break; |
57871462 |
8451 | } |
57871462 |
8452 | if(get_reg(regs[k-1].regmap,f_regmap[hr])>=0) { |
8453 | //printf("no-match due to different register\n"); |
8454 | break; |
8455 | } |
ad49de89 |
8456 | if(itype[k-2]==UJUMP||itype[k-2]==RJUMP||itype[k-2]==CJUMP||itype[k-2]==SJUMP) { |
57871462 |
8457 | //printf("no-match due to branch\n"); |
8458 | break; |
8459 | } |
8460 | // call/ret fast path assumes no registers allocated |
198df76f |
8461 | if(k>2&&(itype[k-3]==UJUMP||itype[k-3]==RJUMP)&&rt1[k-3]==31) { |
57871462 |
8462 | break; |
8463 | } |
ad49de89 |
8464 | assert(r < 64); |
57871462 |
8465 | k--; |
8466 | } |
57871462 |
8467 | if(regs[k-1].regmap[hr]==f_regmap[hr]&®map_pre[k][hr]==f_regmap[hr]) { |
8468 | //printf("Extend r%d, %x ->\n",hr,start+k*4); |
8469 | while(k<i) { |
8470 | regs[k].regmap_entry[hr]=f_regmap[hr]; |
8471 | regs[k].regmap[hr]=f_regmap[hr]; |
8472 | regmap_pre[k+1][hr]=f_regmap[hr]; |
8473 | regs[k].wasdirty&=~(1<<hr); |
8474 | regs[k].dirty&=~(1<<hr); |
8475 | regs[k].wasdirty|=(1<<hr)®s[k-1].dirty; |
8476 | regs[k].dirty|=(1<<hr)®s[k].wasdirty; |
8477 | regs[k].wasconst&=~(1<<hr); |
8478 | regs[k].isconst&=~(1<<hr); |
8479 | k++; |
8480 | } |
8481 | } |
8482 | else { |
8483 | //printf("Fail Extend r%d, %x ->\n",hr,start+k*4); |
8484 | break; |
8485 | } |
8486 | assert(regs[i-1].regmap[hr]==f_regmap[hr]); |
8487 | if(regs[i-1].regmap[hr]==f_regmap[hr]&®map_pre[i][hr]==f_regmap[hr]) { |
8488 | //printf("OK fill %x (r%d)\n",start+i*4,hr); |
8489 | regs[i].regmap_entry[hr]=f_regmap[hr]; |
8490 | regs[i].regmap[hr]=f_regmap[hr]; |
8491 | regs[i].wasdirty&=~(1<<hr); |
8492 | regs[i].dirty&=~(1<<hr); |
8493 | regs[i].wasdirty|=(1<<hr)®s[i-1].dirty; |
8494 | regs[i].dirty|=(1<<hr)®s[i-1].dirty; |
8495 | regs[i].wasconst&=~(1<<hr); |
8496 | regs[i].isconst&=~(1<<hr); |
8497 | branch_regs[i].regmap_entry[hr]=f_regmap[hr]; |
8498 | branch_regs[i].wasdirty&=~(1<<hr); |
8499 | branch_regs[i].wasdirty|=(1<<hr)®s[i].dirty; |
8500 | branch_regs[i].regmap[hr]=f_regmap[hr]; |
8501 | branch_regs[i].dirty&=~(1<<hr); |
8502 | branch_regs[i].dirty|=(1<<hr)®s[i].dirty; |
8503 | branch_regs[i].wasconst&=~(1<<hr); |
8504 | branch_regs[i].isconst&=~(1<<hr); |
07cd0bc4 |
8505 | if (!is_ujump(i)) { |
57871462 |
8506 | regmap_pre[i+2][hr]=f_regmap[hr]; |
8507 | regs[i+2].wasdirty&=~(1<<hr); |
8508 | regs[i+2].wasdirty|=(1<<hr)®s[i].dirty; |
57871462 |
8509 | } |
8510 | } |
8511 | } |
8512 | for(k=t;k<j;k++) { |
e1190b87 |
8513 | // Alloc register clean at beginning of loop, |
8514 | // but may dirty it in pass 6 |
57871462 |
8515 | regs[k].regmap_entry[hr]=f_regmap[hr]; |
8516 | regs[k].regmap[hr]=f_regmap[hr]; |
57871462 |
8517 | regs[k].dirty&=~(1<<hr); |
8518 | regs[k].wasconst&=~(1<<hr); |
8519 | regs[k].isconst&=~(1<<hr); |
ad49de89 |
8520 | if(itype[k]==UJUMP||itype[k]==RJUMP||itype[k]==CJUMP||itype[k]==SJUMP) { |
e1190b87 |
8521 | branch_regs[k].regmap_entry[hr]=f_regmap[hr]; |
8522 | branch_regs[k].regmap[hr]=f_regmap[hr]; |
8523 | branch_regs[k].dirty&=~(1<<hr); |
8524 | branch_regs[k].wasconst&=~(1<<hr); |
8525 | branch_regs[k].isconst&=~(1<<hr); |
07cd0bc4 |
8526 | if (!is_ujump(k)) { |
e1190b87 |
8527 | regmap_pre[k+2][hr]=f_regmap[hr]; |
8528 | regs[k+2].wasdirty&=~(1<<hr); |
e1190b87 |
8529 | } |
8530 | } |
8531 | else |
8532 | { |
8533 | regmap_pre[k+1][hr]=f_regmap[hr]; |
8534 | regs[k+1].wasdirty&=~(1<<hr); |
8535 | } |
57871462 |
8536 | } |
8537 | if(regs[j].regmap[hr]==f_regmap[hr]) |
8538 | regs[j].regmap_entry[hr]=f_regmap[hr]; |
8539 | break; |
8540 | } |
8541 | if(j==i) break; |
8542 | if(regs[j].regmap[hr]>=0) |
8543 | break; |
8544 | if(get_reg(regs[j].regmap,f_regmap[hr])>=0) { |
8545 | //printf("no-match due to different register\n"); |
8546 | break; |
8547 | } |
07cd0bc4 |
8548 | if (is_ujump(j)) |
e1190b87 |
8549 | { |
8550 | // Stop on unconditional branch |
8551 | break; |
8552 | } |
ad49de89 |
8553 | if(itype[j]==CJUMP||itype[j]==SJUMP) |
e1190b87 |
8554 | { |
8555 | if(ooo[j]) { |
9f51b4b9 |
8556 | if(count_free_regs(regs[j].regmap)<=minimum_free_regs[j+1]) |
e1190b87 |
8557 | break; |
8558 | }else{ |
9f51b4b9 |
8559 | if(count_free_regs(branch_regs[j].regmap)<=minimum_free_regs[j+1]) |
e1190b87 |
8560 | break; |
8561 | } |
8562 | if(get_reg(branch_regs[j].regmap,f_regmap[hr])>=0) { |
8563 | //printf("no-match due to different register (branch)\n"); |
57871462 |
8564 | break; |
8565 | } |
8566 | } |
e1190b87 |
8567 | if(count_free_regs(regs[j].regmap)<=minimum_free_regs[j]) { |
8568 | //printf("No free regs for store %x\n",start+j*4); |
8569 | break; |
8570 | } |
ad49de89 |
8571 | assert(f_regmap[hr]<64); |
57871462 |
8572 | } |
8573 | } |
8574 | } |
8575 | } |
8576 | } |
8577 | }else{ |
198df76f |
8578 | // Non branch or undetermined branch target |
57871462 |
8579 | for(hr=0;hr<HOST_REGS;hr++) |
8580 | { |
8581 | if(hr!=EXCLUDE_REG) { |
7c3a5182 |
8582 | if(regs[i].regmap[hr]>=0) { |
b372a952 |
8583 | if(f_regmap[hr]!=regs[i].regmap[hr]) { |
8584 | // dealloc old register |
8585 | int n; |
8586 | for(n=0;n<HOST_REGS;n++) |
8587 | { |
8588 | if(f_regmap[n]==regs[i].regmap[hr]) {f_regmap[n]=-1;} |
8589 | } |
8590 | // and alloc new one |
8591 | f_regmap[hr]=regs[i].regmap[hr]; |
8592 | } |
8593 | } |
57871462 |
8594 | } |
8595 | } |
8596 | // Try to restore cycle count at branch targets |
8597 | if(bt[i]) { |
8598 | for(j=i;j<slen-1;j++) { |
8599 | if(regs[j].regmap[HOST_CCREG]!=-1) break; |
e1190b87 |
8600 | if(count_free_regs(regs[j].regmap)<=minimum_free_regs[j]) { |
8601 | //printf("no free regs for store %x\n",start+j*4); |
8602 | break; |
57871462 |
8603 | } |
57871462 |
8604 | } |
8605 | if(regs[j].regmap[HOST_CCREG]==CCREG) { |
8606 | int k=i; |
8607 | //printf("Extend CC, %x -> %x\n",start+k*4,start+j*4); |
8608 | while(k<j) { |
8609 | regs[k].regmap_entry[HOST_CCREG]=CCREG; |
8610 | regs[k].regmap[HOST_CCREG]=CCREG; |
8611 | regmap_pre[k+1][HOST_CCREG]=CCREG; |
8612 | regs[k+1].wasdirty|=1<<HOST_CCREG; |
8613 | regs[k].dirty|=1<<HOST_CCREG; |
8614 | regs[k].wasconst&=~(1<<HOST_CCREG); |
8615 | regs[k].isconst&=~(1<<HOST_CCREG); |
8616 | k++; |
8617 | } |
9f51b4b9 |
8618 | regs[j].regmap_entry[HOST_CCREG]=CCREG; |
57871462 |
8619 | } |
8620 | // Work backwards from the branch target |
8621 | if(j>i&&f_regmap[HOST_CCREG]==CCREG) |
8622 | { |
8623 | //printf("Extend backwards\n"); |
8624 | int k; |
8625 | k=i; |
8626 | while(regs[k-1].regmap[HOST_CCREG]==-1) { |
e1190b87 |
8627 | if(count_free_regs(regs[k-1].regmap)<=minimum_free_regs[k-1]) { |
8628 | //printf("no free regs for store %x\n",start+(k-1)*4); |
8629 | break; |
57871462 |
8630 | } |
57871462 |
8631 | k--; |
8632 | } |
8633 | if(regs[k-1].regmap[HOST_CCREG]==CCREG) { |
8634 | //printf("Extend CC, %x ->\n",start+k*4); |
8635 | while(k<=i) { |
8636 | regs[k].regmap_entry[HOST_CCREG]=CCREG; |
8637 | regs[k].regmap[HOST_CCREG]=CCREG; |
8638 | regmap_pre[k+1][HOST_CCREG]=CCREG; |
8639 | regs[k+1].wasdirty|=1<<HOST_CCREG; |
8640 | regs[k].dirty|=1<<HOST_CCREG; |
8641 | regs[k].wasconst&=~(1<<HOST_CCREG); |
8642 | regs[k].isconst&=~(1<<HOST_CCREG); |
8643 | k++; |
8644 | } |
8645 | } |
8646 | else { |
8647 | //printf("Fail Extend CC, %x ->\n",start+k*4); |
8648 | } |
8649 | } |
8650 | } |
8651 | if(itype[i]!=STORE&&itype[i]!=STORELR&&itype[i]!=C1LS&&itype[i]!=SHIFT&& |
8652 | itype[i]!=NOP&&itype[i]!=MOV&&itype[i]!=ALU&&itype[i]!=SHIFTIMM&& |
00fa9369 |
8653 | itype[i]!=IMM16&&itype[i]!=LOAD&&itype[i]!=COP1) |
57871462 |
8654 | { |
8655 | memcpy(f_regmap,regs[i].regmap,sizeof(f_regmap)); |
8656 | } |
8657 | } |
8658 | } |
9f51b4b9 |
8659 | |
57871462 |
8660 | // This allocates registers (if possible) one instruction prior |
8661 | // to use, which can avoid a load-use penalty on certain CPUs. |
8662 | for(i=0;i<slen-1;i++) |
8663 | { |
ad49de89 |
8664 | if(!i||(itype[i-1]!=UJUMP&&itype[i-1]!=CJUMP&&itype[i-1]!=SJUMP&&itype[i-1]!=RJUMP)) |
57871462 |
8665 | { |
8666 | if(!bt[i+1]) |
8667 | { |
b9b61529 |
8668 | if(itype[i]==ALU||itype[i]==MOV||itype[i]==LOAD||itype[i]==SHIFTIMM||itype[i]==IMM16 |
8669 | ||((itype[i]==COP1||itype[i]==COP2)&&opcode2[i]<3)) |
57871462 |
8670 | { |
8671 | if(rs1[i+1]) { |
8672 | if((hr=get_reg(regs[i+1].regmap,rs1[i+1]))>=0) |
8673 | { |
8674 | if(regs[i].regmap[hr]<0&®s[i+1].regmap_entry[hr]<0) |
8675 | { |
8676 | regs[i].regmap[hr]=regs[i+1].regmap[hr]; |
8677 | regmap_pre[i+1][hr]=regs[i+1].regmap[hr]; |
8678 | regs[i+1].regmap_entry[hr]=regs[i+1].regmap[hr]; |
8679 | regs[i].isconst&=~(1<<hr); |
8680 | regs[i].isconst|=regs[i+1].isconst&(1<<hr); |
8681 | constmap[i][hr]=constmap[i+1][hr]; |
8682 | regs[i+1].wasdirty&=~(1<<hr); |
8683 | regs[i].dirty&=~(1<<hr); |
8684 | } |
8685 | } |
8686 | } |
8687 | if(rs2[i+1]) { |
8688 | if((hr=get_reg(regs[i+1].regmap,rs2[i+1]))>=0) |
8689 | { |
8690 | if(regs[i].regmap[hr]<0&®s[i+1].regmap_entry[hr]<0) |
8691 | { |
8692 | regs[i].regmap[hr]=regs[i+1].regmap[hr]; |
8693 | regmap_pre[i+1][hr]=regs[i+1].regmap[hr]; |
8694 | regs[i+1].regmap_entry[hr]=regs[i+1].regmap[hr]; |
8695 | regs[i].isconst&=~(1<<hr); |
8696 | regs[i].isconst|=regs[i+1].isconst&(1<<hr); |
8697 | constmap[i][hr]=constmap[i+1][hr]; |
8698 | regs[i+1].wasdirty&=~(1<<hr); |
8699 | regs[i].dirty&=~(1<<hr); |
8700 | } |
8701 | } |
8702 | } |
198df76f |
8703 | // Preload target address for load instruction (non-constant) |
57871462 |
8704 | if(itype[i+1]==LOAD&&rs1[i+1]&&get_reg(regs[i+1].regmap,rs1[i+1])<0) { |
8705 | if((hr=get_reg(regs[i+1].regmap,rt1[i+1]))>=0) |
8706 | { |
8707 | if(regs[i].regmap[hr]<0&®s[i+1].regmap_entry[hr]<0) |
8708 | { |
8709 | regs[i].regmap[hr]=rs1[i+1]; |
8710 | regmap_pre[i+1][hr]=rs1[i+1]; |
8711 | regs[i+1].regmap_entry[hr]=rs1[i+1]; |
8712 | regs[i].isconst&=~(1<<hr); |
8713 | regs[i].isconst|=regs[i+1].isconst&(1<<hr); |
8714 | constmap[i][hr]=constmap[i+1][hr]; |
8715 | regs[i+1].wasdirty&=~(1<<hr); |
8716 | regs[i].dirty&=~(1<<hr); |
8717 | } |
8718 | } |
8719 | } |
9f51b4b9 |
8720 | // Load source into target register |
57871462 |
8721 | if(lt1[i+1]&&get_reg(regs[i+1].regmap,rs1[i+1])<0) { |
8722 | if((hr=get_reg(regs[i+1].regmap,rt1[i+1]))>=0) |
8723 | { |
8724 | if(regs[i].regmap[hr]<0&®s[i+1].regmap_entry[hr]<0) |
8725 | { |
8726 | regs[i].regmap[hr]=rs1[i+1]; |
8727 | regmap_pre[i+1][hr]=rs1[i+1]; |
8728 | regs[i+1].regmap_entry[hr]=rs1[i+1]; |
8729 | regs[i].isconst&=~(1<<hr); |
8730 | regs[i].isconst|=regs[i+1].isconst&(1<<hr); |
8731 | constmap[i][hr]=constmap[i+1][hr]; |
8732 | regs[i+1].wasdirty&=~(1<<hr); |
8733 | regs[i].dirty&=~(1<<hr); |
8734 | } |
8735 | } |
8736 | } |
198df76f |
8737 | // Address for store instruction (non-constant) |
b9b61529 |
8738 | if(itype[i+1]==STORE||itype[i+1]==STORELR |
8739 | ||(opcode[i+1]&0x3b)==0x39||(opcode[i+1]&0x3b)==0x3a) { // SB/SH/SW/SD/SWC1/SDC1/SWC2/SDC2 |
57871462 |
8740 | if(get_reg(regs[i+1].regmap,rs1[i+1])<0) { |
8741 | hr=get_reg2(regs[i].regmap,regs[i+1].regmap,-1); |
8742 | if(hr<0) hr=get_reg(regs[i+1].regmap,-1); |
8743 | else {regs[i+1].regmap[hr]=AGEN1+((i+1)&1);regs[i+1].isconst&=~(1<<hr);} |
8744 | assert(hr>=0); |
8745 | if(regs[i].regmap[hr]<0&®s[i+1].regmap_entry[hr]<0) |
8746 | { |
8747 | regs[i].regmap[hr]=rs1[i+1]; |
8748 | regmap_pre[i+1][hr]=rs1[i+1]; |
8749 | regs[i+1].regmap_entry[hr]=rs1[i+1]; |
8750 | regs[i].isconst&=~(1<<hr); |
8751 | regs[i].isconst|=regs[i+1].isconst&(1<<hr); |
8752 | constmap[i][hr]=constmap[i+1][hr]; |
8753 | regs[i+1].wasdirty&=~(1<<hr); |
8754 | regs[i].dirty&=~(1<<hr); |
8755 | } |
8756 | } |
8757 | } |
b9b61529 |
8758 | if(itype[i+1]==LOADLR||(opcode[i+1]&0x3b)==0x31||(opcode[i+1]&0x3b)==0x32) { // LWC1/LDC1, LWC2/LDC2 |
57871462 |
8759 | if(get_reg(regs[i+1].regmap,rs1[i+1])<0) { |
8760 | int nr; |
8761 | hr=get_reg(regs[i+1].regmap,FTEMP); |
8762 | assert(hr>=0); |
8763 | if(regs[i].regmap[hr]<0&®s[i+1].regmap_entry[hr]<0) |
8764 | { |
8765 | regs[i].regmap[hr]=rs1[i+1]; |
8766 | regmap_pre[i+1][hr]=rs1[i+1]; |
8767 | regs[i+1].regmap_entry[hr]=rs1[i+1]; |
8768 | regs[i].isconst&=~(1<<hr); |
8769 | regs[i].isconst|=regs[i+1].isconst&(1<<hr); |
8770 | constmap[i][hr]=constmap[i+1][hr]; |
8771 | regs[i+1].wasdirty&=~(1<<hr); |
8772 | regs[i].dirty&=~(1<<hr); |
8773 | } |
8774 | else if((nr=get_reg2(regs[i].regmap,regs[i+1].regmap,-1))>=0) |
8775 | { |
8776 | // move it to another register |
8777 | regs[i+1].regmap[hr]=-1; |
8778 | regmap_pre[i+2][hr]=-1; |
8779 | regs[i+1].regmap[nr]=FTEMP; |
8780 | regmap_pre[i+2][nr]=FTEMP; |
8781 | regs[i].regmap[nr]=rs1[i+1]; |
8782 | regmap_pre[i+1][nr]=rs1[i+1]; |
8783 | regs[i+1].regmap_entry[nr]=rs1[i+1]; |
8784 | regs[i].isconst&=~(1<<nr); |
8785 | regs[i+1].isconst&=~(1<<nr); |
8786 | regs[i].dirty&=~(1<<nr); |
8787 | regs[i+1].wasdirty&=~(1<<nr); |
8788 | regs[i+1].dirty&=~(1<<nr); |
8789 | regs[i+2].wasdirty&=~(1<<nr); |
8790 | } |
8791 | } |
8792 | } |
b9b61529 |
8793 | if(itype[i+1]==LOAD||itype[i+1]==LOADLR||itype[i+1]==STORE||itype[i+1]==STORELR/*||itype[i+1]==C1LS||||itype[i+1]==C2LS*/) { |
9f51b4b9 |
8794 | if(itype[i+1]==LOAD) |
57871462 |
8795 | hr=get_reg(regs[i+1].regmap,rt1[i+1]); |
b9b61529 |
8796 | if(itype[i+1]==LOADLR||(opcode[i+1]&0x3b)==0x31||(opcode[i+1]&0x3b)==0x32) // LWC1/LDC1, LWC2/LDC2 |
57871462 |
8797 | hr=get_reg(regs[i+1].regmap,FTEMP); |
b9b61529 |
8798 | if(itype[i+1]==STORE||itype[i+1]==STORELR||(opcode[i+1]&0x3b)==0x39||(opcode[i+1]&0x3b)==0x3a) { // SWC1/SDC1/SWC2/SDC2 |
57871462 |
8799 | hr=get_reg(regs[i+1].regmap,AGEN1+((i+1)&1)); |
8800 | if(hr<0) hr=get_reg(regs[i+1].regmap,-1); |
8801 | } |
8802 | if(hr>=0&®s[i].regmap[hr]<0) { |
8803 | int rs=get_reg(regs[i+1].regmap,rs1[i+1]); |
8804 | if(rs>=0&&((regs[i+1].wasconst>>rs)&1)) { |
8805 | regs[i].regmap[hr]=AGEN1+((i+1)&1); |
8806 | regmap_pre[i+1][hr]=AGEN1+((i+1)&1); |
8807 | regs[i+1].regmap_entry[hr]=AGEN1+((i+1)&1); |
8808 | regs[i].isconst&=~(1<<hr); |
8809 | regs[i+1].wasdirty&=~(1<<hr); |
8810 | regs[i].dirty&=~(1<<hr); |
8811 | } |
8812 | } |
8813 | } |
8814 | } |
8815 | } |
8816 | } |
8817 | } |
9f51b4b9 |
8818 | |
57871462 |
8819 | /* Pass 6 - Optimize clean/dirty state */ |
8820 | clean_registers(0,slen-1,1); |
9f51b4b9 |
8821 | |
57871462 |
8822 | /* Pass 7 - Identify 32-bit registers */ |
04fd948a |
8823 | for (i=slen-1;i>=0;i--) |
8824 | { |
ad49de89 |
8825 | if(itype[i]==CJUMP||itype[i]==SJUMP) |
04fd948a |
8826 | { |
8827 | // Conditional branch |
8828 | if((source[i]>>16)!=0x1000&&i<slen-2) { |
8829 | // Mark this address as a branch target since it may be called |
8830 | // upon return from interrupt |
8831 | bt[i+2]=1; |
8832 | } |
8833 | } |
8834 | } |
57871462 |
8835 | |
8836 | if(itype[slen-1]==SPAN) { |
8837 | bt[slen-1]=1; // Mark as a branch target so instruction can restart after exception |
8838 | } |
4600ba03 |
8839 | |
8840 | #ifdef DISASM |
57871462 |
8841 | /* Debug/disassembly */ |
57871462 |
8842 | for(i=0;i<slen;i++) |
8843 | { |
8844 | printf("U:"); |
8845 | int r; |
8846 | for(r=1;r<=CCREG;r++) { |
8847 | if((unneeded_reg[i]>>r)&1) { |
8848 | if(r==HIREG) printf(" HI"); |
8849 | else if(r==LOREG) printf(" LO"); |
8850 | else printf(" r%d",r); |
8851 | } |
8852 | } |
57871462 |
8853 | printf("\n"); |
8854 | #if defined(__i386__) || defined(__x86_64__) |
8855 | printf("pre: eax=%d ecx=%d edx=%d ebx=%d ebp=%d esi=%d edi=%d\n",regmap_pre[i][0],regmap_pre[i][1],regmap_pre[i][2],regmap_pre[i][3],regmap_pre[i][5],regmap_pre[i][6],regmap_pre[i][7]); |
8856 | #endif |
8857 | #ifdef __arm__ |
8858 | printf("pre: r0=%d r1=%d r2=%d r3=%d r4=%d r5=%d r6=%d r7=%d r8=%d r9=%d r10=%d r12=%d\n",regmap_pre[i][0],regmap_pre[i][1],regmap_pre[i][2],regmap_pre[i][3],regmap_pre[i][4],regmap_pre[i][5],regmap_pre[i][6],regmap_pre[i][7],regmap_pre[i][8],regmap_pre[i][9],regmap_pre[i][10],regmap_pre[i][12]); |
8859 | #endif |
7c3a5182 |
8860 | #if defined(__i386__) || defined(__x86_64__) |
57871462 |
8861 | printf("needs: "); |
8862 | if(needed_reg[i]&1) printf("eax "); |
8863 | if((needed_reg[i]>>1)&1) printf("ecx "); |
8864 | if((needed_reg[i]>>2)&1) printf("edx "); |
8865 | if((needed_reg[i]>>3)&1) printf("ebx "); |
8866 | if((needed_reg[i]>>5)&1) printf("ebp "); |
8867 | if((needed_reg[i]>>6)&1) printf("esi "); |
8868 | if((needed_reg[i]>>7)&1) printf("edi "); |
57871462 |
8869 | printf("\n"); |
57871462 |
8870 | printf("entry: eax=%d ecx=%d edx=%d ebx=%d ebp=%d esi=%d edi=%d\n",regs[i].regmap_entry[0],regs[i].regmap_entry[1],regs[i].regmap_entry[2],regs[i].regmap_entry[3],regs[i].regmap_entry[5],regs[i].regmap_entry[6],regs[i].regmap_entry[7]); |
8871 | printf("dirty: "); |
8872 | if(regs[i].wasdirty&1) printf("eax "); |
8873 | if((regs[i].wasdirty>>1)&1) printf("ecx "); |
8874 | if((regs[i].wasdirty>>2)&1) printf("edx "); |
8875 | if((regs[i].wasdirty>>3)&1) printf("ebx "); |
8876 | if((regs[i].wasdirty>>5)&1) printf("ebp "); |
8877 | if((regs[i].wasdirty>>6)&1) printf("esi "); |
8878 | if((regs[i].wasdirty>>7)&1) printf("edi "); |
8879 | #endif |
8880 | #ifdef __arm__ |
8881 | printf("entry: r0=%d r1=%d r2=%d r3=%d r4=%d r5=%d r6=%d r7=%d r8=%d r9=%d r10=%d r12=%d\n",regs[i].regmap_entry[0],regs[i].regmap_entry[1],regs[i].regmap_entry[2],regs[i].regmap_entry[3],regs[i].regmap_entry[4],regs[i].regmap_entry[5],regs[i].regmap_entry[6],regs[i].regmap_entry[7],regs[i].regmap_entry[8],regs[i].regmap_entry[9],regs[i].regmap_entry[10],regs[i].regmap_entry[12]); |
8882 | printf("dirty: "); |
8883 | if(regs[i].wasdirty&1) printf("r0 "); |
8884 | if((regs[i].wasdirty>>1)&1) printf("r1 "); |
8885 | if((regs[i].wasdirty>>2)&1) printf("r2 "); |
8886 | if((regs[i].wasdirty>>3)&1) printf("r3 "); |
8887 | if((regs[i].wasdirty>>4)&1) printf("r4 "); |
8888 | if((regs[i].wasdirty>>5)&1) printf("r5 "); |
8889 | if((regs[i].wasdirty>>6)&1) printf("r6 "); |
8890 | if((regs[i].wasdirty>>7)&1) printf("r7 "); |
8891 | if((regs[i].wasdirty>>8)&1) printf("r8 "); |
8892 | if((regs[i].wasdirty>>9)&1) printf("r9 "); |
8893 | if((regs[i].wasdirty>>10)&1) printf("r10 "); |
8894 | if((regs[i].wasdirty>>12)&1) printf("r12 "); |
8895 | #endif |
8896 | printf("\n"); |
8897 | disassemble_inst(i); |
8898 | //printf ("ccadj[%d] = %d\n",i,ccadj[i]); |
8899 | #if defined(__i386__) || defined(__x86_64__) |
8900 | printf("eax=%d ecx=%d edx=%d ebx=%d ebp=%d esi=%d edi=%d dirty: ",regs[i].regmap[0],regs[i].regmap[1],regs[i].regmap[2],regs[i].regmap[3],regs[i].regmap[5],regs[i].regmap[6],regs[i].regmap[7]); |
8901 | if(regs[i].dirty&1) printf("eax "); |
8902 | if((regs[i].dirty>>1)&1) printf("ecx "); |
8903 | if((regs[i].dirty>>2)&1) printf("edx "); |
8904 | if((regs[i].dirty>>3)&1) printf("ebx "); |
8905 | if((regs[i].dirty>>5)&1) printf("ebp "); |
8906 | if((regs[i].dirty>>6)&1) printf("esi "); |
8907 | if((regs[i].dirty>>7)&1) printf("edi "); |
8908 | #endif |
8909 | #ifdef __arm__ |
8910 | printf("r0=%d r1=%d r2=%d r3=%d r4=%d r5=%d r6=%d r7=%d r8=%d r9=%d r10=%d r12=%d dirty: ",regs[i].regmap[0],regs[i].regmap[1],regs[i].regmap[2],regs[i].regmap[3],regs[i].regmap[4],regs[i].regmap[5],regs[i].regmap[6],regs[i].regmap[7],regs[i].regmap[8],regs[i].regmap[9],regs[i].regmap[10],regs[i].regmap[12]); |
8911 | if(regs[i].dirty&1) printf("r0 "); |
8912 | if((regs[i].dirty>>1)&1) printf("r1 "); |
8913 | if((regs[i].dirty>>2)&1) printf("r2 "); |
8914 | if((regs[i].dirty>>3)&1) printf("r3 "); |
8915 | if((regs[i].dirty>>4)&1) printf("r4 "); |
8916 | if((regs[i].dirty>>5)&1) printf("r5 "); |
8917 | if((regs[i].dirty>>6)&1) printf("r6 "); |
8918 | if((regs[i].dirty>>7)&1) printf("r7 "); |
8919 | if((regs[i].dirty>>8)&1) printf("r8 "); |
8920 | if((regs[i].dirty>>9)&1) printf("r9 "); |
8921 | if((regs[i].dirty>>10)&1) printf("r10 "); |
8922 | if((regs[i].dirty>>12)&1) printf("r12 "); |
8923 | #endif |
8924 | printf("\n"); |
8925 | if(regs[i].isconst) { |
8926 | printf("constants: "); |
8927 | #if defined(__i386__) || defined(__x86_64__) |
643aeae3 |
8928 | if(regs[i].isconst&1) printf("eax=%x ",(u_int)constmap[i][0]); |
8929 | if((regs[i].isconst>>1)&1) printf("ecx=%x ",(u_int)constmap[i][1]); |
8930 | if((regs[i].isconst>>2)&1) printf("edx=%x ",(u_int)constmap[i][2]); |
8931 | if((regs[i].isconst>>3)&1) printf("ebx=%x ",(u_int)constmap[i][3]); |
8932 | if((regs[i].isconst>>5)&1) printf("ebp=%x ",(u_int)constmap[i][5]); |
8933 | if((regs[i].isconst>>6)&1) printf("esi=%x ",(u_int)constmap[i][6]); |
8934 | if((regs[i].isconst>>7)&1) printf("edi=%x ",(u_int)constmap[i][7]); |
57871462 |
8935 | #endif |
7c3a5182 |
8936 | #if defined(__arm__) || defined(__aarch64__) |
643aeae3 |
8937 | int r; |
8938 | for (r = 0; r < ARRAY_SIZE(constmap[i]); r++) |
8939 | if ((regs[i].isconst >> r) & 1) |
8940 | printf(" r%d=%x", r, (u_int)constmap[i][r]); |
57871462 |
8941 | #endif |
8942 | printf("\n"); |
8943 | } |
ad49de89 |
8944 | if(itype[i]==RJUMP||itype[i]==UJUMP||itype[i]==CJUMP||itype[i]==SJUMP) { |
57871462 |
8945 | #if defined(__i386__) || defined(__x86_64__) |
8946 | printf("branch(%d): eax=%d ecx=%d edx=%d ebx=%d ebp=%d esi=%d edi=%d dirty: ",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]); |
8947 | if(branch_regs[i].dirty&1) printf("eax "); |
8948 | if((branch_regs[i].dirty>>1)&1) printf("ecx "); |
8949 | if((branch_regs[i].dirty>>2)&1) printf("edx "); |
8950 | if((branch_regs[i].dirty>>3)&1) printf("ebx "); |
8951 | if((branch_regs[i].dirty>>5)&1) printf("ebp "); |
8952 | if((branch_regs[i].dirty>>6)&1) printf("esi "); |
8953 | if((branch_regs[i].dirty>>7)&1) printf("edi "); |
8954 | #endif |
8955 | #ifdef __arm__ |
8956 | printf("branch(%d): r0=%d r1=%d r2=%d r3=%d r4=%d r5=%d r6=%d r7=%d r8=%d r9=%d r10=%d r12=%d dirty: ",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[4],branch_regs[i].regmap[5],branch_regs[i].regmap[6],branch_regs[i].regmap[7],branch_regs[i].regmap[8],branch_regs[i].regmap[9],branch_regs[i].regmap[10],branch_regs[i].regmap[12]); |
8957 | if(branch_regs[i].dirty&1) printf("r0 "); |
8958 | if((branch_regs[i].dirty>>1)&1) printf("r1 "); |
8959 | if((branch_regs[i].dirty>>2)&1) printf("r2 "); |
8960 | if((branch_regs[i].dirty>>3)&1) printf("r3 "); |
8961 | if((branch_regs[i].dirty>>4)&1) printf("r4 "); |
8962 | if((branch_regs[i].dirty>>5)&1) printf("r5 "); |
8963 | if((branch_regs[i].dirty>>6)&1) printf("r6 "); |
8964 | if((branch_regs[i].dirty>>7)&1) printf("r7 "); |
8965 | if((branch_regs[i].dirty>>8)&1) printf("r8 "); |
8966 | if((branch_regs[i].dirty>>9)&1) printf("r9 "); |
8967 | if((branch_regs[i].dirty>>10)&1) printf("r10 "); |
8968 | if((branch_regs[i].dirty>>12)&1) printf("r12 "); |
8969 | #endif |
57871462 |
8970 | } |
8971 | } |
4600ba03 |
8972 | #endif // DISASM |
57871462 |
8973 | |
8974 | /* Pass 8 - Assembly */ |
8975 | linkcount=0;stubcount=0; |
8976 | ds=0;is_delayslot=0; |
57871462 |
8977 | u_int dirty_pre=0; |
d148d265 |
8978 | void *beginning=start_block(); |
57871462 |
8979 | if((u_int)addr&1) { |
8980 | ds=1; |
8981 | pagespan_ds(); |
8982 | } |
df4dc2b1 |
8983 | void *instr_addr0_override = NULL; |
9ad4d757 |
8984 | |
9ad4d757 |
8985 | if (start == 0x80030000) { |
3968e69e |
8986 | // nasty hack for the fastbios thing |
96186eba |
8987 | // override block entry to this code |
df4dc2b1 |
8988 | instr_addr0_override = out; |
9ad4d757 |
8989 | emit_movimm(start,0); |
96186eba |
8990 | // abuse io address var as a flag that we |
8991 | // have already returned here once |
643aeae3 |
8992 | emit_readword(&address,1); |
8993 | emit_writeword(0,&pcaddr); |
8994 | emit_writeword(0,&address); |
9ad4d757 |
8995 | emit_cmp(0,1); |
3968e69e |
8996 | #ifdef __aarch64__ |
8997 | emit_jeq(out + 4*2); |
2a014d73 |
8998 | emit_far_jump(new_dyna_leave); |
3968e69e |
8999 | #else |
643aeae3 |
9000 | emit_jne(new_dyna_leave); |
3968e69e |
9001 | #endif |
9ad4d757 |
9002 | } |
57871462 |
9003 | for(i=0;i<slen;i++) |
9004 | { |
9005 | //if(ds) printf("ds: "); |
4600ba03 |
9006 | disassemble_inst(i); |
57871462 |
9007 | if(ds) { |
9008 | ds=0; // Skip delay slot |
9009 | if(bt[i]) assem_debug("OOPS - branch into delay slot\n"); |
df4dc2b1 |
9010 | instr_addr[i] = NULL; |
57871462 |
9011 | } else { |
ffb0b9e0 |
9012 | speculate_register_values(i); |
57871462 |
9013 | #ifndef DESTRUCTIVE_WRITEBACK |
07cd0bc4 |
9014 | if (i < 2 || !is_ujump(i-2)) |
57871462 |
9015 | { |
ad49de89 |
9016 | wb_valid(regmap_pre[i],regs[i].regmap_entry,dirty_pre,regs[i].wasdirty,unneeded_reg[i]); |
57871462 |
9017 | } |
ad49de89 |
9018 | if((itype[i]==CJUMP||itype[i]==SJUMP)&&!likely[i]) { |
f776eb14 |
9019 | dirty_pre=branch_regs[i].dirty; |
9020 | }else{ |
f776eb14 |
9021 | dirty_pre=regs[i].dirty; |
9022 | } |
57871462 |
9023 | #endif |
9024 | // write back |
07cd0bc4 |
9025 | if (i < 2 || !is_ujump(i-2)) |
57871462 |
9026 | { |
ad49de89 |
9027 | wb_invalidate(regmap_pre[i],regs[i].regmap_entry,regs[i].wasdirty,unneeded_reg[i]); |
57871462 |
9028 | loop_preload(regmap_pre[i],regs[i].regmap_entry); |
9029 | } |
9030 | // branch target entry point |
df4dc2b1 |
9031 | instr_addr[i] = out; |
57871462 |
9032 | assem_debug("<->\n"); |
dd114d7d |
9033 | drc_dbg_emit_do_cmp(i); |
9034 | |
57871462 |
9035 | // load regs |
9036 | if(regs[i].regmap_entry[HOST_CCREG]==CCREG&®s[i].regmap[HOST_CCREG]!=CCREG) |
ad49de89 |
9037 | wb_register(CCREG,regs[i].regmap_entry,regs[i].wasdirty); |
9038 | load_regs(regs[i].regmap_entry,regs[i].regmap,rs1[i],rs2[i]); |
57871462 |
9039 | address_generation(i,®s[i],regs[i].regmap_entry); |
ad49de89 |
9040 | load_consts(regmap_pre[i],regs[i].regmap,i); |
9041 | if(itype[i]==RJUMP||itype[i]==UJUMP||itype[i]==CJUMP||itype[i]==SJUMP) |
57871462 |
9042 | { |
9043 | // Load the delay slot registers if necessary |
4ef8f67d |
9044 | if(rs1[i+1]!=rs1[i]&&rs1[i+1]!=rs2[i]&&(rs1[i+1]!=rt1[i]||rt1[i]==0)) |
ad49de89 |
9045 | load_regs(regs[i].regmap_entry,regs[i].regmap,rs1[i+1],rs1[i+1]); |
4ef8f67d |
9046 | if(rs2[i+1]!=rs1[i+1]&&rs2[i+1]!=rs1[i]&&rs2[i+1]!=rs2[i]&&(rs2[i+1]!=rt1[i]||rt1[i]==0)) |
ad49de89 |
9047 | load_regs(regs[i].regmap_entry,regs[i].regmap,rs2[i+1],rs2[i+1]); |
b9b61529 |
9048 | if(itype[i+1]==STORE||itype[i+1]==STORELR||(opcode[i+1]&0x3b)==0x39||(opcode[i+1]&0x3b)==0x3a) |
ad49de89 |
9049 | load_regs(regs[i].regmap_entry,regs[i].regmap,INVCP,INVCP); |
57871462 |
9050 | } |
9051 | else if(i+1<slen) |
9052 | { |
9053 | // Preload registers for following instruction |
9054 | if(rs1[i+1]!=rs1[i]&&rs1[i+1]!=rs2[i]) |
9055 | if(rs1[i+1]!=rt1[i]&&rs1[i+1]!=rt2[i]) |
ad49de89 |
9056 | load_regs(regs[i].regmap_entry,regs[i].regmap,rs1[i+1],rs1[i+1]); |
57871462 |
9057 | if(rs2[i+1]!=rs1[i+1]&&rs2[i+1]!=rs1[i]&&rs2[i+1]!=rs2[i]) |
9058 | if(rs2[i+1]!=rt1[i]&&rs2[i+1]!=rt2[i]) |
ad49de89 |
9059 | load_regs(regs[i].regmap_entry,regs[i].regmap,rs2[i+1],rs2[i+1]); |
57871462 |
9060 | } |
9061 | // TODO: if(is_ooo(i)) address_generation(i+1); |
ad49de89 |
9062 | if(itype[i]==CJUMP) |
9063 | load_regs(regs[i].regmap_entry,regs[i].regmap,CCREG,CCREG); |
b9b61529 |
9064 | if(itype[i]==STORE||itype[i]==STORELR||(opcode[i]&0x3b)==0x39||(opcode[i]&0x3b)==0x3a) |
ad49de89 |
9065 | load_regs(regs[i].regmap_entry,regs[i].regmap,INVCP,INVCP); |
57871462 |
9066 | // assemble |
9067 | switch(itype[i]) { |
9068 | case ALU: |
9069 | alu_assemble(i,®s[i]);break; |
9070 | case IMM16: |
9071 | imm16_assemble(i,®s[i]);break; |
9072 | case SHIFT: |
9073 | shift_assemble(i,®s[i]);break; |
9074 | case SHIFTIMM: |
9075 | shiftimm_assemble(i,®s[i]);break; |
9076 | case LOAD: |
9077 | load_assemble(i,®s[i]);break; |
9078 | case LOADLR: |
9079 | loadlr_assemble(i,®s[i]);break; |
9080 | case STORE: |
9081 | store_assemble(i,®s[i]);break; |
9082 | case STORELR: |
9083 | storelr_assemble(i,®s[i]);break; |
9084 | case COP0: |
9085 | cop0_assemble(i,®s[i]);break; |
9086 | case COP1: |
9087 | cop1_assemble(i,®s[i]);break; |
9088 | case C1LS: |
9089 | c1ls_assemble(i,®s[i]);break; |
b9b61529 |
9090 | case COP2: |
9091 | cop2_assemble(i,®s[i]);break; |
9092 | case C2LS: |
9093 | c2ls_assemble(i,®s[i]);break; |
9094 | case C2OP: |
9095 | c2op_assemble(i,®s[i]);break; |
57871462 |
9096 | case MULTDIV: |
9097 | multdiv_assemble(i,®s[i]);break; |
9098 | case MOV: |
9099 | mov_assemble(i,®s[i]);break; |
9100 | case SYSCALL: |
9101 | syscall_assemble(i,®s[i]);break; |
7139f3c8 |
9102 | case HLECALL: |
9103 | hlecall_assemble(i,®s[i]);break; |
1e973cb0 |
9104 | case INTCALL: |
9105 | intcall_assemble(i,®s[i]);break; |
57871462 |
9106 | case UJUMP: |
9107 | ujump_assemble(i,®s[i]);ds=1;break; |
9108 | case RJUMP: |
9109 | rjump_assemble(i,®s[i]);ds=1;break; |
9110 | case CJUMP: |
9111 | cjump_assemble(i,®s[i]);ds=1;break; |
9112 | case SJUMP: |
9113 | sjump_assemble(i,®s[i]);ds=1;break; |
57871462 |
9114 | case SPAN: |
9115 | pagespan_assemble(i,®s[i]);break; |
9116 | } |
07cd0bc4 |
9117 | if (is_ujump(i)) |
57871462 |
9118 | literal_pool(1024); |
9119 | else |
9120 | literal_pool_jumpover(256); |
9121 | } |
9122 | } |
07cd0bc4 |
9123 | //assert(is_ujump(i-2)); |
57871462 |
9124 | // If the block did not end with an unconditional branch, |
9125 | // add a jump to the next instruction. |
9126 | if(i>1) { |
07cd0bc4 |
9127 | if(!is_ujump(i-2)&&itype[i-1]!=SPAN) { |
ad49de89 |
9128 | assert(itype[i-1]!=UJUMP&&itype[i-1]!=CJUMP&&itype[i-1]!=SJUMP&&itype[i-1]!=RJUMP); |
57871462 |
9129 | assert(i==slen); |
ad49de89 |
9130 | if(itype[i-2]!=CJUMP&&itype[i-2]!=SJUMP) { |
9131 | store_regs_bt(regs[i-1].regmap,regs[i-1].dirty,start+i*4); |
57871462 |
9132 | if(regs[i-1].regmap[HOST_CCREG]!=CCREG) |
9133 | emit_loadreg(CCREG,HOST_CCREG); |
2573466a |
9134 | emit_addimm(HOST_CCREG,CLOCK_ADJUST(ccadj[i-1]+1),HOST_CCREG); |
57871462 |
9135 | } |
9136 | else if(!likely[i-2]) |
9137 | { |
ad49de89 |
9138 | store_regs_bt(branch_regs[i-2].regmap,branch_regs[i-2].dirty,start+i*4); |
57871462 |
9139 | assert(branch_regs[i-2].regmap[HOST_CCREG]==CCREG); |
9140 | } |
9141 | else |
9142 | { |
ad49de89 |
9143 | store_regs_bt(regs[i-2].regmap,regs[i-2].dirty,start+i*4); |
57871462 |
9144 | assert(regs[i-2].regmap[HOST_CCREG]==CCREG); |
9145 | } |
643aeae3 |
9146 | add_to_linker(out,start+i*4,0); |
57871462 |
9147 | emit_jmp(0); |
9148 | } |
9149 | } |
9150 | else |
9151 | { |
9152 | assert(i>0); |
ad49de89 |
9153 | assert(itype[i-1]!=UJUMP&&itype[i-1]!=CJUMP&&itype[i-1]!=SJUMP&&itype[i-1]!=RJUMP); |
9154 | store_regs_bt(regs[i-1].regmap,regs[i-1].dirty,start+i*4); |
57871462 |
9155 | if(regs[i-1].regmap[HOST_CCREG]!=CCREG) |
9156 | emit_loadreg(CCREG,HOST_CCREG); |
2573466a |
9157 | emit_addimm(HOST_CCREG,CLOCK_ADJUST(ccadj[i-1]+1),HOST_CCREG); |
643aeae3 |
9158 | add_to_linker(out,start+i*4,0); |
57871462 |
9159 | emit_jmp(0); |
9160 | } |
9161 | |
9162 | // TODO: delay slot stubs? |
9163 | // Stubs |
9164 | for(i=0;i<stubcount;i++) |
9165 | { |
b14b6a8f |
9166 | switch(stubs[i].type) |
57871462 |
9167 | { |
9168 | case LOADB_STUB: |
9169 | case LOADH_STUB: |
9170 | case LOADW_STUB: |
9171 | case LOADD_STUB: |
9172 | case LOADBU_STUB: |
9173 | case LOADHU_STUB: |
9174 | do_readstub(i);break; |
9175 | case STOREB_STUB: |
9176 | case STOREH_STUB: |
9177 | case STOREW_STUB: |
9178 | case STORED_STUB: |
9179 | do_writestub(i);break; |
9180 | case CC_STUB: |
9181 | do_ccstub(i);break; |
9182 | case INVCODE_STUB: |
9183 | do_invstub(i);break; |
9184 | case FP_STUB: |
9185 | do_cop1stub(i);break; |
9186 | case STORELR_STUB: |
9187 | do_unalignedwritestub(i);break; |
9188 | } |
9189 | } |
9190 | |
9ad4d757 |
9191 | if (instr_addr0_override) |
9192 | instr_addr[0] = instr_addr0_override; |
9193 | |
57871462 |
9194 | /* Pass 9 - Linker */ |
9195 | for(i=0;i<linkcount;i++) |
9196 | { |
643aeae3 |
9197 | assem_debug("%p -> %8x\n",link_addr[i].addr,link_addr[i].target); |
57871462 |
9198 | literal_pool(64); |
643aeae3 |
9199 | if (!link_addr[i].ext) |
57871462 |
9200 | { |
643aeae3 |
9201 | void *stub = out; |
9202 | void *addr = check_addr(link_addr[i].target); |
9203 | emit_extjump(link_addr[i].addr, link_addr[i].target); |
9204 | if (addr) { |
9205 | set_jump_target(link_addr[i].addr, addr); |
9206 | add_link(link_addr[i].target,stub); |
57871462 |
9207 | } |
643aeae3 |
9208 | else |
9209 | set_jump_target(link_addr[i].addr, stub); |
57871462 |
9210 | } |
9211 | else |
9212 | { |
9213 | // Internal branch |
643aeae3 |
9214 | int target=(link_addr[i].target-start)>>2; |
57871462 |
9215 | assert(target>=0&&target<slen); |
9216 | assert(instr_addr[target]); |
9217 | //#ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
643aeae3 |
9218 | //set_jump_target_fillslot(link_addr[i].addr,instr_addr[target],link_addr[i].ext>>1); |
57871462 |
9219 | //#else |
643aeae3 |
9220 | set_jump_target(link_addr[i].addr, instr_addr[target]); |
57871462 |
9221 | //#endif |
9222 | } |
9223 | } |
9224 | // External Branch Targets (jump_in) |
9225 | if(copy+slen*4>(void *)shadow+sizeof(shadow)) copy=shadow; |
9226 | for(i=0;i<slen;i++) |
9227 | { |
9228 | if(bt[i]||i==0) |
9229 | { |
9230 | if(instr_addr[i]) // TODO - delay slots (=null) |
9231 | { |
9232 | u_int vaddr=start+i*4; |
94d23bb9 |
9233 | u_int page=get_page(vaddr); |
9234 | u_int vpage=get_vpage(vaddr); |
57871462 |
9235 | literal_pool(256); |
57871462 |
9236 | { |
df4dc2b1 |
9237 | assem_debug("%p (%d) <- %8x\n",instr_addr[i],i,start+i*4); |
57871462 |
9238 | assem_debug("jump_in: %x\n",start+i*4); |
df4dc2b1 |
9239 | ll_add(jump_dirty+vpage,vaddr,out); |
9240 | void *entry_point = do_dirty_stub(i); |
9241 | ll_add_flags(jump_in+page,vaddr,state_rflags,entry_point); |
57871462 |
9242 | // If there was an existing entry in the hash table, |
9243 | // replace it with the new address. |
9244 | // Don't add new entries. We'll insert the |
9245 | // ones that actually get used in check_addr(). |
df4dc2b1 |
9246 | struct ht_entry *ht_bin = hash_table_get(vaddr); |
9247 | if (ht_bin->vaddr[0] == vaddr) |
9248 | ht_bin->tcaddr[0] = entry_point; |
9249 | if (ht_bin->vaddr[1] == vaddr) |
9250 | ht_bin->tcaddr[1] = entry_point; |
57871462 |
9251 | } |
57871462 |
9252 | } |
9253 | } |
9254 | } |
9255 | // Write out the literal pool if necessary |
9256 | literal_pool(0); |
9257 | #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
9258 | // Align code |
9259 | if(((u_int)out)&7) emit_addnop(13); |
9260 | #endif |
01d26796 |
9261 | assert(out - (u_char *)beginning < MAX_OUTPUT_BLOCK_SIZE); |
643aeae3 |
9262 | //printf("shadow buffer: %p-%p\n",copy,(u_char *)copy+slen*4); |
57871462 |
9263 | memcpy(copy,source,slen*4); |
9264 | copy+=slen*4; |
9f51b4b9 |
9265 | |
d148d265 |
9266 | end_block(beginning); |
9f51b4b9 |
9267 | |
57871462 |
9268 | // If we're within 256K of the end of the buffer, |
9269 | // start over from the beginning. (Is 256K enough?) |
2a014d73 |
9270 | if (out > ndrc->translation_cache + sizeof(ndrc->translation_cache) - MAX_OUTPUT_BLOCK_SIZE) |
9271 | out = ndrc->translation_cache; |
9f51b4b9 |
9272 | |
57871462 |
9273 | // Trap writes to any of the pages we compiled |
9274 | for(i=start>>12;i<=(start+slen*4)>>12;i++) { |
9275 | invalid_code[i]=0; |
57871462 |
9276 | } |
9be4ba64 |
9277 | inv_code_start=inv_code_end=~0; |
71e490c5 |
9278 | |
b96d3df7 |
9279 | // for PCSX we need to mark all mirrors too |
b12c9fb8 |
9280 | if(get_page(start)<(RAM_SIZE>>12)) |
9281 | for(i=start>>12;i<=(start+slen*4)>>12;i++) |
b96d3df7 |
9282 | invalid_code[((u_int)0x00000000>>12)|(i&0x1ff)]= |
9283 | invalid_code[((u_int)0x80000000>>12)|(i&0x1ff)]= |
9284 | invalid_code[((u_int)0xa0000000>>12)|(i&0x1ff)]=0; |
9f51b4b9 |
9285 | |
57871462 |
9286 | /* Pass 10 - Free memory by expiring oldest blocks */ |
9f51b4b9 |
9287 | |
2a014d73 |
9288 | int end=(((out-ndrc->translation_cache)>>(TARGET_SIZE_2-16))+16384)&65535; |
57871462 |
9289 | while(expirep!=end) |
9290 | { |
9291 | int shift=TARGET_SIZE_2-3; // Divide into 8 blocks |
2a014d73 |
9292 | uintptr_t base=(uintptr_t)ndrc->translation_cache+((expirep>>13)<<shift); // Base address of this block |
57871462 |
9293 | inv_debug("EXP: Phase %d\n",expirep); |
9294 | switch((expirep>>11)&3) |
9295 | { |
9296 | case 0: |
9297 | // Clear jump_in and jump_dirty |
9298 | ll_remove_matching_addrs(jump_in+(expirep&2047),base,shift); |
9299 | ll_remove_matching_addrs(jump_dirty+(expirep&2047),base,shift); |
9300 | ll_remove_matching_addrs(jump_in+2048+(expirep&2047),base,shift); |
9301 | ll_remove_matching_addrs(jump_dirty+2048+(expirep&2047),base,shift); |
9302 | break; |
9303 | case 1: |
9304 | // Clear pointers |
9305 | ll_kill_pointers(jump_out[expirep&2047],base,shift); |
9306 | ll_kill_pointers(jump_out[(expirep&2047)+2048],base,shift); |
9307 | break; |
9308 | case 2: |
9309 | // Clear hash table |
9310 | for(i=0;i<32;i++) { |
df4dc2b1 |
9311 | struct ht_entry *ht_bin = &hash_table[((expirep&2047)<<5)+i]; |
9312 | if (((uintptr_t)ht_bin->tcaddr[1]>>shift) == (base>>shift) || |
9313 | (((uintptr_t)ht_bin->tcaddr[1]-MAX_OUTPUT_BLOCK_SIZE)>>shift)==(base>>shift)) { |
9314 | inv_debug("EXP: Remove hash %x -> %p\n",ht_bin->vaddr[1],ht_bin->tcaddr[1]); |
9315 | ht_bin->vaddr[1] = -1; |
9316 | ht_bin->tcaddr[1] = NULL; |
9317 | } |
9318 | if (((uintptr_t)ht_bin->tcaddr[0]>>shift) == (base>>shift) || |
9319 | (((uintptr_t)ht_bin->tcaddr[0]-MAX_OUTPUT_BLOCK_SIZE)>>shift)==(base>>shift)) { |
9320 | inv_debug("EXP: Remove hash %x -> %p\n",ht_bin->vaddr[0],ht_bin->tcaddr[0]); |
9321 | ht_bin->vaddr[0] = ht_bin->vaddr[1]; |
9322 | ht_bin->tcaddr[0] = ht_bin->tcaddr[1]; |
9323 | ht_bin->vaddr[1] = -1; |
9324 | ht_bin->tcaddr[1] = NULL; |
57871462 |
9325 | } |
9326 | } |
9327 | break; |
9328 | case 3: |
9329 | // Clear jump_out |
9f51b4b9 |
9330 | if((expirep&2047)==0) |
dd3a91a1 |
9331 | do_clear_cache(); |
57871462 |
9332 | ll_remove_matching_addrs(jump_out+(expirep&2047),base,shift); |
9333 | ll_remove_matching_addrs(jump_out+2048+(expirep&2047),base,shift); |
9334 | break; |
9335 | } |
9336 | expirep=(expirep+1)&65535; |
9337 | } |
9338 | return 0; |
9339 | } |
b9b61529 |
9340 | |
9341 | // vim:shiftwidth=2:expandtab |