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 |
57871462 |
36 | |
d148d265 |
37 | #include "new_dynarec_config.h" |
dd79da89 |
38 | #include "../psxhle.h" //emulator interface |
3d624f89 |
39 | #include "emu_if.h" //emulator interface |
57871462 |
40 | |
b14b6a8f |
41 | #ifndef ARRAY_SIZE |
42 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) |
43 | #endif |
44 | |
4600ba03 |
45 | //#define DISASM |
46 | //#define assem_debug printf |
47 | //#define inv_debug printf |
48 | #define assem_debug(...) |
49 | #define inv_debug(...) |
57871462 |
50 | |
51 | #ifdef __i386__ |
52 | #include "assem_x86.h" |
53 | #endif |
54 | #ifdef __x86_64__ |
55 | #include "assem_x64.h" |
56 | #endif |
57 | #ifdef __arm__ |
58 | #include "assem_arm.h" |
59 | #endif |
60 | |
61 | #define MAXBLOCK 4096 |
62 | #define MAX_OUTPUT_BLOCK_SIZE 262144 |
2573466a |
63 | |
b14b6a8f |
64 | // stubs |
65 | enum stub_type { |
66 | CC_STUB = 1, |
67 | FP_STUB = 2, |
68 | LOADB_STUB = 3, |
69 | LOADH_STUB = 4, |
70 | LOADW_STUB = 5, |
71 | LOADD_STUB = 6, |
72 | LOADBU_STUB = 7, |
73 | LOADHU_STUB = 8, |
74 | STOREB_STUB = 9, |
75 | STOREH_STUB = 10, |
76 | STOREW_STUB = 11, |
77 | STORED_STUB = 12, |
78 | STORELR_STUB = 13, |
79 | INVCODE_STUB = 14, |
80 | }; |
81 | |
57871462 |
82 | struct regstat |
83 | { |
84 | signed char regmap_entry[HOST_REGS]; |
85 | signed char regmap[HOST_REGS]; |
57871462 |
86 | uint64_t wasdirty; |
87 | uint64_t dirty; |
88 | uint64_t u; |
57871462 |
89 | u_int wasconst; |
90 | u_int isconst; |
8575a877 |
91 | u_int loadedconst; // host regs that have constants loaded |
92 | u_int waswritten; // MIPS regs that were used as store base before |
57871462 |
93 | }; |
94 | |
de5a60c3 |
95 | // note: asm depends on this layout |
57871462 |
96 | struct ll_entry |
97 | { |
98 | u_int vaddr; |
de5a60c3 |
99 | u_int reg_sv_flags; |
57871462 |
100 | void *addr; |
101 | struct ll_entry *next; |
102 | }; |
103 | |
df4dc2b1 |
104 | struct ht_entry |
105 | { |
106 | u_int vaddr[2]; |
107 | void *tcaddr[2]; |
108 | }; |
109 | |
b14b6a8f |
110 | struct code_stub |
111 | { |
112 | enum stub_type type; |
113 | void *addr; |
114 | void *retaddr; |
115 | u_int a; |
116 | uintptr_t b; |
117 | uintptr_t c; |
118 | u_int d; |
119 | u_int e; |
120 | }; |
121 | |
643aeae3 |
122 | struct link_entry |
123 | { |
124 | void *addr; |
125 | u_int target; |
126 | u_int ext; |
127 | }; |
128 | |
e2b5e7aa |
129 | // used by asm: |
130 | u_char *out; |
df4dc2b1 |
131 | struct ht_entry hash_table[65536] __attribute__((aligned(16))); |
e2b5e7aa |
132 | struct ll_entry *jump_in[4096] __attribute__((aligned(16))); |
133 | struct ll_entry *jump_dirty[4096]; |
134 | |
135 | static struct ll_entry *jump_out[4096]; |
136 | static u_int start; |
137 | static u_int *source; |
138 | static char insn[MAXBLOCK][10]; |
139 | static u_char itype[MAXBLOCK]; |
140 | static u_char opcode[MAXBLOCK]; |
141 | static u_char opcode2[MAXBLOCK]; |
142 | static u_char bt[MAXBLOCK]; |
143 | static u_char rs1[MAXBLOCK]; |
144 | static u_char rs2[MAXBLOCK]; |
145 | static u_char rt1[MAXBLOCK]; |
146 | static u_char rt2[MAXBLOCK]; |
147 | static u_char us1[MAXBLOCK]; |
148 | static u_char us2[MAXBLOCK]; |
149 | static u_char dep1[MAXBLOCK]; |
150 | static u_char dep2[MAXBLOCK]; |
151 | static u_char lt1[MAXBLOCK]; |
bedfea38 |
152 | static uint64_t gte_rs[MAXBLOCK]; // gte: 32 data and 32 ctl regs |
153 | static uint64_t gte_rt[MAXBLOCK]; |
154 | static uint64_t gte_unneeded[MAXBLOCK]; |
ffb0b9e0 |
155 | static u_int smrv[32]; // speculated MIPS register values |
156 | static u_int smrv_strong; // mask or regs that are likely to have correct values |
157 | static u_int smrv_weak; // same, but somewhat less likely |
158 | static u_int smrv_strong_next; // same, but after current insn executes |
159 | static u_int smrv_weak_next; |
e2b5e7aa |
160 | static int imm[MAXBLOCK]; |
161 | static u_int ba[MAXBLOCK]; |
162 | static char likely[MAXBLOCK]; |
163 | static char is_ds[MAXBLOCK]; |
164 | static char ooo[MAXBLOCK]; |
165 | static uint64_t unneeded_reg[MAXBLOCK]; |
e2b5e7aa |
166 | static uint64_t branch_unneeded_reg[MAXBLOCK]; |
e2b5e7aa |
167 | static signed char regmap_pre[MAXBLOCK][HOST_REGS]; |
956f3129 |
168 | static uint64_t current_constmap[HOST_REGS]; |
169 | static uint64_t constmap[MAXBLOCK][HOST_REGS]; |
170 | static struct regstat regs[MAXBLOCK]; |
171 | static struct regstat branch_regs[MAXBLOCK]; |
e2b5e7aa |
172 | static signed char minimum_free_regs[MAXBLOCK]; |
173 | static u_int needed_reg[MAXBLOCK]; |
174 | static u_int wont_dirty[MAXBLOCK]; |
175 | static u_int will_dirty[MAXBLOCK]; |
176 | static int ccadj[MAXBLOCK]; |
177 | static int slen; |
df4dc2b1 |
178 | static void *instr_addr[MAXBLOCK]; |
643aeae3 |
179 | static struct link_entry link_addr[MAXBLOCK]; |
e2b5e7aa |
180 | static int linkcount; |
b14b6a8f |
181 | static struct code_stub stubs[MAXBLOCK*3]; |
e2b5e7aa |
182 | static int stubcount; |
183 | static u_int literals[1024][2]; |
184 | static int literalcount; |
185 | static int is_delayslot; |
e2b5e7aa |
186 | static char shadow[1048576] __attribute__((aligned(16))); |
187 | static void *copy; |
188 | static int expirep; |
189 | static u_int stop_after_jal; |
a327ad27 |
190 | #ifndef RAM_FIXED |
01d26796 |
191 | static uintptr_t ram_offset; |
a327ad27 |
192 | #else |
01d26796 |
193 | static const uintptr_t ram_offset=0; |
a327ad27 |
194 | #endif |
e2b5e7aa |
195 | |
196 | int new_dynarec_hacks; |
197 | int new_dynarec_did_compile; |
57871462 |
198 | extern u_char restore_candidate[512]; |
199 | extern int cycle_count; |
200 | |
201 | /* registers that may be allocated */ |
202 | /* 1-31 gpr */ |
203 | #define HIREG 32 // hi |
204 | #define LOREG 33 // lo |
00fa9369 |
205 | //#define FSREG 34 // FPU status (FCSR) |
57871462 |
206 | #define CSREG 35 // Coprocessor status |
207 | #define CCREG 36 // Cycle count |
208 | #define INVCP 37 // Pointer to invalid_code |
1edfcc68 |
209 | //#define MMREG 38 // Pointer to memory_map |
9c45ca93 |
210 | //#define ROREG 39 // ram offset (if rdram!=0x80000000) |
619e5ded |
211 | #define TEMPREG 40 |
212 | #define FTEMP 40 // FPU temporary register |
213 | #define PTEMP 41 // Prefetch temporary register |
1edfcc68 |
214 | //#define TLREG 42 // TLB mapping offset |
619e5ded |
215 | #define RHASH 43 // Return address hash |
216 | #define RHTBL 44 // Return address hash table address |
217 | #define RTEMP 45 // JR/JALR address register |
218 | #define MAXREG 45 |
219 | #define AGEN1 46 // Address generation temporary register |
1edfcc68 |
220 | //#define AGEN2 47 // Address generation temporary register |
221 | //#define MGEN1 48 // Maptable address generation temporary register |
222 | //#define MGEN2 49 // Maptable address generation temporary register |
619e5ded |
223 | #define BTREG 50 // Branch target temporary register |
57871462 |
224 | |
225 | /* instruction types */ |
226 | #define NOP 0 // No operation |
227 | #define LOAD 1 // Load |
228 | #define STORE 2 // Store |
229 | #define LOADLR 3 // Unaligned load |
230 | #define STORELR 4 // Unaligned store |
9f51b4b9 |
231 | #define MOV 5 // Move |
57871462 |
232 | #define ALU 6 // Arithmetic/logic |
233 | #define MULTDIV 7 // Multiply/divide |
234 | #define SHIFT 8 // Shift by register |
235 | #define SHIFTIMM 9// Shift by immediate |
236 | #define IMM16 10 // 16-bit immediate |
237 | #define RJUMP 11 // Unconditional jump to register |
238 | #define UJUMP 12 // Unconditional jump |
239 | #define CJUMP 13 // Conditional branch (BEQ/BNE/BGTZ/BLEZ) |
240 | #define SJUMP 14 // Conditional branch (regimm format) |
241 | #define COP0 15 // Coprocessor 0 |
242 | #define COP1 16 // Coprocessor 1 |
243 | #define C1LS 17 // Coprocessor 1 load/store |
ad49de89 |
244 | //#define FJUMP 18 // Conditional branch (floating point) |
00fa9369 |
245 | //#define FLOAT 19 // Floating point unit |
246 | //#define FCONV 20 // Convert integer to float |
247 | //#define FCOMP 21 // Floating point compare (sets FSREG) |
57871462 |
248 | #define SYSCALL 22// SYSCALL |
249 | #define OTHER 23 // Other |
250 | #define SPAN 24 // Branch/delay slot spans 2 pages |
251 | #define NI 25 // Not implemented |
7139f3c8 |
252 | #define HLECALL 26// PCSX fake opcodes for HLE |
b9b61529 |
253 | #define COP2 27 // Coprocessor 2 move |
254 | #define C2LS 28 // Coprocessor 2 load/store |
255 | #define C2OP 29 // Coprocessor 2 operation |
1e973cb0 |
256 | #define INTCALL 30// Call interpreter to handle rare corner cases |
57871462 |
257 | |
57871462 |
258 | /* branch codes */ |
259 | #define TAKEN 1 |
260 | #define NOTTAKEN 2 |
261 | #define NULLDS 3 |
262 | |
263 | // asm linkage |
264 | int new_recompile_block(int addr); |
265 | void *get_addr_ht(u_int vaddr); |
266 | void invalidate_block(u_int block); |
267 | void invalidate_addr(u_int addr); |
268 | void remove_hash(int vaddr); |
57871462 |
269 | void dyna_linker(); |
270 | void dyna_linker_ds(); |
271 | void verify_code(); |
272 | void verify_code_vm(); |
273 | void verify_code_ds(); |
274 | void cc_interrupt(); |
275 | void fp_exception(); |
276 | void fp_exception_ds(); |
7139f3c8 |
277 | void jump_syscall_hle(); |
7139f3c8 |
278 | void jump_hlecall(); |
1e973cb0 |
279 | void jump_intcall(); |
7139f3c8 |
280 | void new_dyna_leave(); |
57871462 |
281 | |
57871462 |
282 | // Needed by assembler |
ad49de89 |
283 | static void wb_register(signed char r,signed char regmap[],uint64_t dirty); |
284 | static void wb_dirtys(signed char i_regmap[],uint64_t i_dirty); |
285 | static void wb_needed_dirtys(signed char i_regmap[],uint64_t i_dirty,int addr); |
e2b5e7aa |
286 | static void load_all_regs(signed char i_regmap[]); |
287 | static void load_needed_regs(signed char i_regmap[],signed char next_regmap[]); |
288 | static void load_regs_entry(int t); |
ad49de89 |
289 | static void load_all_consts(signed char regmap[],u_int dirty,int i); |
e2b5e7aa |
290 | |
291 | static int verify_dirty(u_int *ptr); |
292 | static int get_final_value(int hr, int i, int *value); |
b14b6a8f |
293 | static void add_stub(enum stub_type type, void *addr, void *retaddr, |
294 | u_int a, uintptr_t b, uintptr_t c, u_int d, u_int e); |
295 | static void add_stub_r(enum stub_type type, void *addr, void *retaddr, |
296 | int i, int addr_reg, struct regstat *i_regs, int ccadj, u_int reglist); |
643aeae3 |
297 | static void add_to_linker(void *addr, u_int target, int ext); |
57871462 |
298 | |
d148d265 |
299 | static void mprotect_w_x(void *start, void *end, int is_x) |
300 | { |
301 | #ifdef NO_WRITE_EXEC |
1e212a25 |
302 | #if defined(VITA) |
303 | // *Open* enables write on all memory that was |
304 | // allocated by sceKernelAllocMemBlockForVM()? |
305 | if (is_x) |
306 | sceKernelCloseVMDomain(); |
307 | else |
308 | sceKernelOpenVMDomain(); |
309 | #else |
d148d265 |
310 | u_long mstart = (u_long)start & ~4095ul; |
311 | u_long mend = (u_long)end; |
312 | if (mprotect((void *)mstart, mend - mstart, |
313 | PROT_READ | (is_x ? PROT_EXEC : PROT_WRITE)) != 0) |
314 | SysPrintf("mprotect(%c) failed: %s\n", is_x ? 'x' : 'w', strerror(errno)); |
1e212a25 |
315 | #endif |
d148d265 |
316 | #endif |
317 | } |
318 | |
319 | static void start_tcache_write(void *start, void *end) |
320 | { |
321 | mprotect_w_x(start, end, 0); |
322 | } |
323 | |
324 | static void end_tcache_write(void *start, void *end) |
325 | { |
326 | #ifdef __arm__ |
327 | size_t len = (char *)end - (char *)start; |
328 | #if defined(__BLACKBERRY_QNX__) |
329 | msync(start, len, MS_SYNC | MS_CACHE_ONLY | MS_INVALIDATE_ICACHE); |
330 | #elif defined(__MACH__) |
331 | sys_cache_control(kCacheFunctionPrepareForExecution, start, len); |
332 | #elif defined(VITA) |
1e212a25 |
333 | sceKernelSyncVMDomain(sceBlock, start, len); |
334 | #elif defined(_3DS) |
335 | ctr_flush_invalidate_cache(); |
d148d265 |
336 | #else |
337 | __clear_cache(start, end); |
338 | #endif |
339 | (void)len; |
340 | #endif |
341 | |
342 | mprotect_w_x(start, end, 1); |
343 | } |
344 | |
345 | static void *start_block(void) |
346 | { |
347 | u_char *end = out + MAX_OUTPUT_BLOCK_SIZE; |
643aeae3 |
348 | if (end > translation_cache + (1<<TARGET_SIZE_2)) |
349 | end = translation_cache + (1<<TARGET_SIZE_2); |
d148d265 |
350 | start_tcache_write(out, end); |
351 | return out; |
352 | } |
353 | |
354 | static void end_block(void *start) |
355 | { |
356 | end_tcache_write(start, out); |
357 | } |
358 | |
57871462 |
359 | //#define DEBUG_CYCLE_COUNT 1 |
360 | |
b6e87b2b |
361 | #define NO_CYCLE_PENALTY_THR 12 |
362 | |
4e9dcd7f |
363 | int cycle_multiplier; // 100 for 1.0 |
364 | |
365 | static int CLOCK_ADJUST(int x) |
366 | { |
367 | int s=(x>>31)|1; |
368 | return (x * cycle_multiplier + s * 50) / 100; |
369 | } |
370 | |
94d23bb9 |
371 | static u_int get_page(u_int vaddr) |
57871462 |
372 | { |
0ce47d46 |
373 | u_int page=vaddr&~0xe0000000; |
374 | if (page < 0x1000000) |
375 | page &= ~0x0e00000; // RAM mirrors |
376 | page>>=12; |
57871462 |
377 | if(page>2048) page=2048+(page&2047); |
94d23bb9 |
378 | return page; |
379 | } |
380 | |
d25604ca |
381 | // no virtual mem in PCSX |
382 | static u_int get_vpage(u_int vaddr) |
383 | { |
384 | return get_page(vaddr); |
385 | } |
94d23bb9 |
386 | |
df4dc2b1 |
387 | static struct ht_entry *hash_table_get(u_int vaddr) |
388 | { |
389 | return &hash_table[((vaddr>>16)^vaddr)&0xFFFF]; |
390 | } |
391 | |
392 | static void hash_table_add(struct ht_entry *ht_bin, u_int vaddr, void *tcaddr) |
393 | { |
394 | ht_bin->vaddr[1] = ht_bin->vaddr[0]; |
395 | ht_bin->tcaddr[1] = ht_bin->tcaddr[0]; |
396 | ht_bin->vaddr[0] = vaddr; |
397 | ht_bin->tcaddr[0] = tcaddr; |
398 | } |
399 | |
400 | // some messy ari64's code, seems to rely on unsigned 32bit overflow |
401 | static int doesnt_expire_soon(void *tcaddr) |
402 | { |
403 | u_int diff = (u_int)((u_char *)tcaddr - out) << (32-TARGET_SIZE_2); |
404 | return diff > (u_int)(0x60000000 + (MAX_OUTPUT_BLOCK_SIZE << (32-TARGET_SIZE_2))); |
405 | } |
406 | |
94d23bb9 |
407 | // Get address from virtual address |
408 | // This is called from the recompiled JR/JALR instructions |
409 | void *get_addr(u_int vaddr) |
410 | { |
411 | u_int page=get_page(vaddr); |
412 | u_int vpage=get_vpage(vaddr); |
57871462 |
413 | struct ll_entry *head; |
414 | //printf("TRACE: count=%d next=%d (get_addr %x,page %d)\n",Count,next_interupt,vaddr,page); |
415 | head=jump_in[page]; |
416 | while(head!=NULL) { |
de5a60c3 |
417 | if(head->vaddr==vaddr) { |
643aeae3 |
418 | //printf("TRACE: count=%d next=%d (get_addr match %x: %p)\n",Count,next_interupt,vaddr,head->addr); |
df4dc2b1 |
419 | hash_table_add(hash_table_get(vaddr), vaddr, head->addr); |
57871462 |
420 | return head->addr; |
421 | } |
422 | head=head->next; |
423 | } |
424 | head=jump_dirty[vpage]; |
425 | while(head!=NULL) { |
de5a60c3 |
426 | if(head->vaddr==vaddr) { |
643aeae3 |
427 | //printf("TRACE: count=%d next=%d (get_addr match dirty %x: %p)\n",Count,next_interupt,vaddr,head->addr); |
57871462 |
428 | // Don't restore blocks which are about to expire from the cache |
df4dc2b1 |
429 | if (doesnt_expire_soon(head->addr)) |
430 | if (verify_dirty(head->addr)) { |
57871462 |
431 | //printf("restore candidate: %x (%d) d=%d\n",vaddr,page,invalid_code[vaddr>>12]); |
432 | invalid_code[vaddr>>12]=0; |
9be4ba64 |
433 | inv_code_start=inv_code_end=~0; |
57871462 |
434 | if(vpage<2048) { |
57871462 |
435 | restore_candidate[vpage>>3]|=1<<(vpage&7); |
436 | } |
437 | else restore_candidate[page>>3]|=1<<(page&7); |
df4dc2b1 |
438 | struct ht_entry *ht_bin = hash_table_get(vaddr); |
439 | if (ht_bin->vaddr[0] == vaddr) |
440 | ht_bin->tcaddr[0] = head->addr; // Replace existing entry |
57871462 |
441 | else |
df4dc2b1 |
442 | hash_table_add(ht_bin, vaddr, head->addr); |
443 | |
57871462 |
444 | return head->addr; |
445 | } |
446 | } |
447 | head=head->next; |
448 | } |
449 | //printf("TRACE: count=%d next=%d (get_addr no-match %x)\n",Count,next_interupt,vaddr); |
450 | int r=new_recompile_block(vaddr); |
451 | if(r==0) return get_addr(vaddr); |
452 | // Execute in unmapped page, generate pagefault execption |
453 | Status|=2; |
454 | Cause=(vaddr<<31)|0x8; |
455 | EPC=(vaddr&1)?vaddr-5:vaddr; |
456 | BadVAddr=(vaddr&~1); |
457 | Context=(Context&0xFF80000F)|((BadVAddr>>9)&0x007FFFF0); |
458 | EntryHi=BadVAddr&0xFFFFE000; |
459 | return get_addr_ht(0x80000000); |
460 | } |
461 | // Look up address in hash table first |
462 | void *get_addr_ht(u_int vaddr) |
463 | { |
464 | //printf("TRACE: count=%d next=%d (get_addr_ht %x)\n",Count,next_interupt,vaddr); |
df4dc2b1 |
465 | const struct ht_entry *ht_bin = hash_table_get(vaddr); |
466 | if (ht_bin->vaddr[0] == vaddr) return ht_bin->tcaddr[0]; |
467 | if (ht_bin->vaddr[1] == vaddr) return ht_bin->tcaddr[1]; |
57871462 |
468 | return get_addr(vaddr); |
469 | } |
470 | |
57871462 |
471 | void clear_all_regs(signed char regmap[]) |
472 | { |
473 | int hr; |
474 | for (hr=0;hr<HOST_REGS;hr++) regmap[hr]=-1; |
475 | } |
476 | |
477 | signed char get_reg(signed char regmap[],int r) |
478 | { |
479 | int hr; |
480 | for (hr=0;hr<HOST_REGS;hr++) if(hr!=EXCLUDE_REG&®map[hr]==r) return hr; |
481 | return -1; |
482 | } |
483 | |
484 | // Find a register that is available for two consecutive cycles |
485 | signed char get_reg2(signed char regmap1[],signed char regmap2[],int r) |
486 | { |
487 | int hr; |
488 | for (hr=0;hr<HOST_REGS;hr++) if(hr!=EXCLUDE_REG&®map1[hr]==r&®map2[hr]==r) return hr; |
489 | return -1; |
490 | } |
491 | |
492 | int count_free_regs(signed char regmap[]) |
493 | { |
494 | int count=0; |
495 | int hr; |
496 | for(hr=0;hr<HOST_REGS;hr++) |
497 | { |
498 | if(hr!=EXCLUDE_REG) { |
499 | if(regmap[hr]<0) count++; |
500 | } |
501 | } |
502 | return count; |
503 | } |
504 | |
505 | void dirty_reg(struct regstat *cur,signed char reg) |
506 | { |
507 | int hr; |
508 | if(!reg) return; |
509 | for (hr=0;hr<HOST_REGS;hr++) { |
510 | if((cur->regmap[hr]&63)==reg) { |
511 | cur->dirty|=1<<hr; |
512 | } |
513 | } |
514 | } |
515 | |
57871462 |
516 | void set_const(struct regstat *cur,signed char reg,uint64_t value) |
517 | { |
518 | int hr; |
519 | if(!reg) return; |
520 | for (hr=0;hr<HOST_REGS;hr++) { |
521 | if(cur->regmap[hr]==reg) { |
522 | cur->isconst|=1<<hr; |
956f3129 |
523 | current_constmap[hr]=value; |
57871462 |
524 | } |
525 | else if((cur->regmap[hr]^64)==reg) { |
526 | cur->isconst|=1<<hr; |
956f3129 |
527 | current_constmap[hr]=value>>32; |
57871462 |
528 | } |
529 | } |
530 | } |
531 | |
532 | void clear_const(struct regstat *cur,signed char reg) |
533 | { |
534 | int hr; |
535 | if(!reg) return; |
536 | for (hr=0;hr<HOST_REGS;hr++) { |
537 | if((cur->regmap[hr]&63)==reg) { |
538 | cur->isconst&=~(1<<hr); |
539 | } |
540 | } |
541 | } |
542 | |
543 | int is_const(struct regstat *cur,signed char reg) |
544 | { |
545 | int hr; |
79c75f1b |
546 | if(reg<0) return 0; |
57871462 |
547 | if(!reg) return 1; |
548 | for (hr=0;hr<HOST_REGS;hr++) { |
549 | if((cur->regmap[hr]&63)==reg) { |
550 | return (cur->isconst>>hr)&1; |
551 | } |
552 | } |
553 | return 0; |
554 | } |
555 | uint64_t get_const(struct regstat *cur,signed char reg) |
556 | { |
557 | int hr; |
558 | if(!reg) return 0; |
559 | for (hr=0;hr<HOST_REGS;hr++) { |
560 | if(cur->regmap[hr]==reg) { |
956f3129 |
561 | return current_constmap[hr]; |
57871462 |
562 | } |
563 | } |
c43b5311 |
564 | SysPrintf("Unknown constant in r%d\n",reg); |
57871462 |
565 | exit(1); |
566 | } |
567 | |
568 | // Least soon needed registers |
569 | // Look at the next ten instructions and see which registers |
570 | // will be used. Try not to reallocate these. |
571 | void lsn(u_char hsn[], int i, int *preferred_reg) |
572 | { |
573 | int j; |
574 | int b=-1; |
575 | for(j=0;j<9;j++) |
576 | { |
577 | if(i+j>=slen) { |
578 | j=slen-i-1; |
579 | break; |
580 | } |
581 | if(itype[i+j]==UJUMP||itype[i+j]==RJUMP||(source[i+j]>>16)==0x1000) |
582 | { |
583 | // Don't go past an unconditonal jump |
584 | j++; |
585 | break; |
586 | } |
587 | } |
588 | for(;j>=0;j--) |
589 | { |
590 | if(rs1[i+j]) hsn[rs1[i+j]]=j; |
591 | if(rs2[i+j]) hsn[rs2[i+j]]=j; |
592 | if(rt1[i+j]) hsn[rt1[i+j]]=j; |
593 | if(rt2[i+j]) hsn[rt2[i+j]]=j; |
594 | if(itype[i+j]==STORE || itype[i+j]==STORELR) { |
595 | // Stores can allocate zero |
596 | hsn[rs1[i+j]]=j; |
597 | hsn[rs2[i+j]]=j; |
598 | } |
599 | // On some architectures stores need invc_ptr |
600 | #if defined(HOST_IMM8) |
b9b61529 |
601 | if(itype[i+j]==STORE || itype[i+j]==STORELR || (opcode[i+j]&0x3b)==0x39 || (opcode[i+j]&0x3b)==0x3a) { |
57871462 |
602 | hsn[INVCP]=j; |
603 | } |
604 | #endif |
ad49de89 |
605 | if(i+j>=0&&(itype[i+j]==UJUMP||itype[i+j]==CJUMP||itype[i+j]==SJUMP)) |
57871462 |
606 | { |
607 | hsn[CCREG]=j; |
608 | b=j; |
609 | } |
610 | } |
611 | if(b>=0) |
612 | { |
613 | if(ba[i+b]>=start && ba[i+b]<(start+slen*4)) |
614 | { |
615 | // Follow first branch |
616 | int t=(ba[i+b]-start)>>2; |
617 | j=7-b;if(t+j>=slen) j=slen-t-1; |
618 | for(;j>=0;j--) |
619 | { |
620 | if(rs1[t+j]) if(hsn[rs1[t+j]]>j+b+2) hsn[rs1[t+j]]=j+b+2; |
621 | if(rs2[t+j]) if(hsn[rs2[t+j]]>j+b+2) hsn[rs2[t+j]]=j+b+2; |
622 | //if(rt1[t+j]) if(hsn[rt1[t+j]]>j+b+2) hsn[rt1[t+j]]=j+b+2; |
623 | //if(rt2[t+j]) if(hsn[rt2[t+j]]>j+b+2) hsn[rt2[t+j]]=j+b+2; |
624 | } |
625 | } |
626 | // TODO: preferred register based on backward branch |
627 | } |
628 | // Delay slot should preferably not overwrite branch conditions or cycle count |
ad49de89 |
629 | if(i>0&&(itype[i-1]==RJUMP||itype[i-1]==UJUMP||itype[i-1]==CJUMP||itype[i-1]==SJUMP)) { |
57871462 |
630 | if(rs1[i-1]) if(hsn[rs1[i-1]]>1) hsn[rs1[i-1]]=1; |
631 | if(rs2[i-1]) if(hsn[rs2[i-1]]>1) hsn[rs2[i-1]]=1; |
632 | hsn[CCREG]=1; |
633 | // ...or hash tables |
634 | hsn[RHASH]=1; |
635 | hsn[RHTBL]=1; |
636 | } |
637 | // Coprocessor load/store needs FTEMP, even if not declared |
b9b61529 |
638 | if(itype[i]==C1LS||itype[i]==C2LS) { |
57871462 |
639 | hsn[FTEMP]=0; |
640 | } |
641 | // Load L/R also uses FTEMP as a temporary register |
642 | if(itype[i]==LOADLR) { |
643 | hsn[FTEMP]=0; |
644 | } |
b7918751 |
645 | // Also SWL/SWR/SDL/SDR |
646 | if(opcode[i]==0x2a||opcode[i]==0x2e||opcode[i]==0x2c||opcode[i]==0x2d) { |
57871462 |
647 | hsn[FTEMP]=0; |
648 | } |
57871462 |
649 | // Don't remove the miniht registers |
650 | if(itype[i]==UJUMP||itype[i]==RJUMP) |
651 | { |
652 | hsn[RHASH]=0; |
653 | hsn[RHTBL]=0; |
654 | } |
655 | } |
656 | |
657 | // We only want to allocate registers if we're going to use them again soon |
658 | int needed_again(int r, int i) |
659 | { |
660 | int j; |
661 | int b=-1; |
662 | int rn=10; |
9f51b4b9 |
663 | |
57871462 |
664 | if(i>0&&(itype[i-1]==UJUMP||itype[i-1]==RJUMP||(source[i-1]>>16)==0x1000)) |
665 | { |
666 | if(ba[i-1]<start || ba[i-1]>start+slen*4-4) |
667 | return 0; // Don't need any registers if exiting the block |
668 | } |
669 | for(j=0;j<9;j++) |
670 | { |
671 | if(i+j>=slen) { |
672 | j=slen-i-1; |
673 | break; |
674 | } |
675 | if(itype[i+j]==UJUMP||itype[i+j]==RJUMP||(source[i+j]>>16)==0x1000) |
676 | { |
677 | // Don't go past an unconditonal jump |
678 | j++; |
679 | break; |
680 | } |
1e973cb0 |
681 | if(itype[i+j]==SYSCALL||itype[i+j]==HLECALL||itype[i+j]==INTCALL||((source[i+j]&0xfc00003f)==0x0d)) |
57871462 |
682 | { |
683 | break; |
684 | } |
685 | } |
686 | for(;j>=1;j--) |
687 | { |
688 | if(rs1[i+j]==r) rn=j; |
689 | if(rs2[i+j]==r) rn=j; |
690 | if((unneeded_reg[i+j]>>r)&1) rn=10; |
ad49de89 |
691 | if(i+j>=0&&(itype[i+j]==UJUMP||itype[i+j]==CJUMP||itype[i+j]==SJUMP)) |
57871462 |
692 | { |
693 | b=j; |
694 | } |
695 | } |
696 | /* |
697 | if(b>=0) |
698 | { |
699 | if(ba[i+b]>=start && ba[i+b]<(start+slen*4)) |
700 | { |
701 | // Follow first branch |
702 | int o=rn; |
703 | int t=(ba[i+b]-start)>>2; |
704 | j=7-b;if(t+j>=slen) j=slen-t-1; |
705 | for(;j>=0;j--) |
706 | { |
707 | if(!((unneeded_reg[t+j]>>r)&1)) { |
708 | if(rs1[t+j]==r) if(rn>j+b+2) rn=j+b+2; |
709 | if(rs2[t+j]==r) if(rn>j+b+2) rn=j+b+2; |
710 | } |
711 | else rn=o; |
712 | } |
713 | } |
714 | }*/ |
b7217e13 |
715 | if(rn<10) return 1; |
581335b0 |
716 | (void)b; |
57871462 |
717 | return 0; |
718 | } |
719 | |
720 | // Try to match register allocations at the end of a loop with those |
721 | // at the beginning |
722 | int loop_reg(int i, int r, int hr) |
723 | { |
724 | int j,k; |
725 | for(j=0;j<9;j++) |
726 | { |
727 | if(i+j>=slen) { |
728 | j=slen-i-1; |
729 | break; |
730 | } |
731 | if(itype[i+j]==UJUMP||itype[i+j]==RJUMP||(source[i+j]>>16)==0x1000) |
732 | { |
733 | // Don't go past an unconditonal jump |
734 | j++; |
735 | break; |
736 | } |
737 | } |
738 | k=0; |
739 | if(i>0){ |
ad49de89 |
740 | if(itype[i-1]==UJUMP||itype[i-1]==CJUMP||itype[i-1]==SJUMP) |
57871462 |
741 | k--; |
742 | } |
743 | for(;k<j;k++) |
744 | { |
00fa9369 |
745 | assert(r < 64); |
746 | if((unneeded_reg[i+k]>>r)&1) return hr; |
ad49de89 |
747 | if(i+k>=0&&(itype[i+k]==UJUMP||itype[i+k]==CJUMP||itype[i+k]==SJUMP)) |
57871462 |
748 | { |
749 | if(ba[i+k]>=start && ba[i+k]<(start+i*4)) |
750 | { |
751 | int t=(ba[i+k]-start)>>2; |
752 | int reg=get_reg(regs[t].regmap_entry,r); |
753 | if(reg>=0) return reg; |
754 | //reg=get_reg(regs[t+1].regmap_entry,r); |
755 | //if(reg>=0) return reg; |
756 | } |
757 | } |
758 | } |
759 | return hr; |
760 | } |
761 | |
762 | |
763 | // Allocate every register, preserving source/target regs |
764 | void alloc_all(struct regstat *cur,int i) |
765 | { |
766 | int hr; |
9f51b4b9 |
767 | |
57871462 |
768 | for(hr=0;hr<HOST_REGS;hr++) { |
769 | if(hr!=EXCLUDE_REG) { |
770 | if(((cur->regmap[hr]&63)!=rs1[i])&&((cur->regmap[hr]&63)!=rs2[i])&& |
771 | ((cur->regmap[hr]&63)!=rt1[i])&&((cur->regmap[hr]&63)!=rt2[i])) |
772 | { |
773 | cur->regmap[hr]=-1; |
774 | cur->dirty&=~(1<<hr); |
775 | } |
776 | // Don't need zeros |
777 | if((cur->regmap[hr]&63)==0) |
778 | { |
779 | cur->regmap[hr]=-1; |
780 | cur->dirty&=~(1<<hr); |
781 | } |
782 | } |
783 | } |
784 | } |
785 | |
57871462 |
786 | #ifdef __i386__ |
787 | #include "assem_x86.c" |
788 | #endif |
789 | #ifdef __x86_64__ |
790 | #include "assem_x64.c" |
791 | #endif |
792 | #ifdef __arm__ |
793 | #include "assem_arm.c" |
794 | #endif |
795 | |
796 | // Add virtual address mapping to linked list |
797 | void ll_add(struct ll_entry **head,int vaddr,void *addr) |
798 | { |
799 | struct ll_entry *new_entry; |
800 | new_entry=malloc(sizeof(struct ll_entry)); |
801 | assert(new_entry!=NULL); |
802 | new_entry->vaddr=vaddr; |
de5a60c3 |
803 | new_entry->reg_sv_flags=0; |
57871462 |
804 | new_entry->addr=addr; |
805 | new_entry->next=*head; |
806 | *head=new_entry; |
807 | } |
808 | |
de5a60c3 |
809 | void ll_add_flags(struct ll_entry **head,int vaddr,u_int reg_sv_flags,void *addr) |
57871462 |
810 | { |
7139f3c8 |
811 | ll_add(head,vaddr,addr); |
de5a60c3 |
812 | (*head)->reg_sv_flags=reg_sv_flags; |
57871462 |
813 | } |
814 | |
815 | // Check if an address is already compiled |
816 | // but don't return addresses which are about to expire from the cache |
817 | void *check_addr(u_int vaddr) |
818 | { |
df4dc2b1 |
819 | struct ht_entry *ht_bin = hash_table_get(vaddr); |
820 | size_t i; |
b14b6a8f |
821 | for (i = 0; i < ARRAY_SIZE(ht_bin->vaddr); i++) { |
df4dc2b1 |
822 | if (ht_bin->vaddr[i] == vaddr) |
823 | if (doesnt_expire_soon((u_char *)ht_bin->tcaddr[i] - MAX_OUTPUT_BLOCK_SIZE)) |
824 | if (isclean(ht_bin->tcaddr[i])) |
825 | return ht_bin->tcaddr[i]; |
57871462 |
826 | } |
94d23bb9 |
827 | u_int page=get_page(vaddr); |
57871462 |
828 | struct ll_entry *head; |
829 | head=jump_in[page]; |
df4dc2b1 |
830 | while (head != NULL) { |
831 | if (head->vaddr == vaddr) { |
832 | if (doesnt_expire_soon(head->addr)) { |
57871462 |
833 | // Update existing entry with current address |
df4dc2b1 |
834 | if (ht_bin->vaddr[0] == vaddr) { |
835 | ht_bin->tcaddr[0] = head->addr; |
57871462 |
836 | return head->addr; |
837 | } |
df4dc2b1 |
838 | if (ht_bin->vaddr[1] == vaddr) { |
839 | ht_bin->tcaddr[1] = head->addr; |
57871462 |
840 | return head->addr; |
841 | } |
842 | // Insert into hash table with low priority. |
843 | // Don't evict existing entries, as they are probably |
844 | // addresses that are being accessed frequently. |
df4dc2b1 |
845 | if (ht_bin->vaddr[0] == -1) { |
846 | ht_bin->vaddr[0] = vaddr; |
847 | ht_bin->tcaddr[0] = head->addr; |
848 | } |
849 | else if (ht_bin->vaddr[1] == -1) { |
850 | ht_bin->vaddr[1] = vaddr; |
851 | ht_bin->tcaddr[1] = head->addr; |
57871462 |
852 | } |
853 | return head->addr; |
854 | } |
855 | } |
856 | head=head->next; |
857 | } |
858 | return 0; |
859 | } |
860 | |
861 | void remove_hash(int vaddr) |
862 | { |
863 | //printf("remove hash: %x\n",vaddr); |
df4dc2b1 |
864 | struct ht_entry *ht_bin = hash_table_get(vaddr); |
865 | if (ht_bin->vaddr[1] == vaddr) { |
866 | ht_bin->vaddr[1] = -1; |
867 | ht_bin->tcaddr[1] = NULL; |
57871462 |
868 | } |
df4dc2b1 |
869 | if (ht_bin->vaddr[0] == vaddr) { |
870 | ht_bin->vaddr[0] = ht_bin->vaddr[1]; |
871 | ht_bin->tcaddr[0] = ht_bin->tcaddr[1]; |
872 | ht_bin->vaddr[1] = -1; |
873 | ht_bin->tcaddr[1] = NULL; |
57871462 |
874 | } |
875 | } |
876 | |
643aeae3 |
877 | void ll_remove_matching_addrs(struct ll_entry **head,uintptr_t addr,int shift) |
57871462 |
878 | { |
879 | struct ll_entry *next; |
880 | while(*head) { |
643aeae3 |
881 | if(((uintptr_t)((*head)->addr)>>shift)==(addr>>shift) || |
882 | ((uintptr_t)((*head)->addr-MAX_OUTPUT_BLOCK_SIZE)>>shift)==(addr>>shift)) |
57871462 |
883 | { |
643aeae3 |
884 | inv_debug("EXP: Remove pointer to %p (%x)\n",(*head)->addr,(*head)->vaddr); |
57871462 |
885 | remove_hash((*head)->vaddr); |
886 | next=(*head)->next; |
887 | free(*head); |
888 | *head=next; |
889 | } |
890 | else |
891 | { |
892 | head=&((*head)->next); |
893 | } |
894 | } |
895 | } |
896 | |
897 | // Remove all entries from linked list |
898 | void ll_clear(struct ll_entry **head) |
899 | { |
900 | struct ll_entry *cur; |
901 | struct ll_entry *next; |
581335b0 |
902 | if((cur=*head)) { |
57871462 |
903 | *head=0; |
904 | while(cur) { |
905 | next=cur->next; |
906 | free(cur); |
907 | cur=next; |
908 | } |
909 | } |
910 | } |
911 | |
912 | // Dereference the pointers and remove if it matches |
643aeae3 |
913 | static void ll_kill_pointers(struct ll_entry *head,uintptr_t addr,int shift) |
57871462 |
914 | { |
915 | while(head) { |
643aeae3 |
916 | uintptr_t ptr = (uintptr_t)get_pointer(head->addr); |
917 | inv_debug("EXP: Lookup pointer to %lx at %p (%x)\n",(long)ptr,head->addr,head->vaddr); |
57871462 |
918 | if(((ptr>>shift)==(addr>>shift)) || |
919 | (((ptr-MAX_OUTPUT_BLOCK_SIZE)>>shift)==(addr>>shift))) |
920 | { |
643aeae3 |
921 | inv_debug("EXP: Kill pointer at %p (%x)\n",head->addr,head->vaddr); |
d148d265 |
922 | void *host_addr=find_extjump_insn(head->addr); |
dd3a91a1 |
923 | #ifdef __arm__ |
d148d265 |
924 | mark_clear_cache(host_addr); |
dd3a91a1 |
925 | #endif |
df4dc2b1 |
926 | set_jump_target(host_addr, head->addr); |
57871462 |
927 | } |
928 | head=head->next; |
929 | } |
930 | } |
931 | |
932 | // This is called when we write to a compiled block (see do_invstub) |
f76eeef9 |
933 | void invalidate_page(u_int page) |
57871462 |
934 | { |
57871462 |
935 | struct ll_entry *head; |
936 | struct ll_entry *next; |
937 | head=jump_in[page]; |
938 | jump_in[page]=0; |
939 | while(head!=NULL) { |
940 | inv_debug("INVALIDATE: %x\n",head->vaddr); |
941 | remove_hash(head->vaddr); |
942 | next=head->next; |
943 | free(head); |
944 | head=next; |
945 | } |
946 | head=jump_out[page]; |
947 | jump_out[page]=0; |
948 | while(head!=NULL) { |
643aeae3 |
949 | inv_debug("INVALIDATE: kill pointer to %x (%p)\n",head->vaddr,head->addr); |
d148d265 |
950 | void *host_addr=find_extjump_insn(head->addr); |
dd3a91a1 |
951 | #ifdef __arm__ |
d148d265 |
952 | mark_clear_cache(host_addr); |
dd3a91a1 |
953 | #endif |
df4dc2b1 |
954 | set_jump_target(host_addr, head->addr); |
57871462 |
955 | next=head->next; |
956 | free(head); |
957 | head=next; |
958 | } |
57871462 |
959 | } |
9be4ba64 |
960 | |
961 | static void invalidate_block_range(u_int block, u_int first, u_int last) |
57871462 |
962 | { |
94d23bb9 |
963 | u_int page=get_page(block<<12); |
57871462 |
964 | //printf("first=%d last=%d\n",first,last); |
f76eeef9 |
965 | invalidate_page(page); |
57871462 |
966 | assert(first+5>page); // NB: this assumes MAXBLOCK<=4096 (4 pages) |
967 | assert(last<page+5); |
968 | // Invalidate the adjacent pages if a block crosses a 4K boundary |
969 | while(first<page) { |
970 | invalidate_page(first); |
971 | first++; |
972 | } |
973 | for(first=page+1;first<last;first++) { |
974 | invalidate_page(first); |
975 | } |
dd3a91a1 |
976 | #ifdef __arm__ |
977 | do_clear_cache(); |
978 | #endif |
9f51b4b9 |
979 | |
57871462 |
980 | // Don't trap writes |
981 | invalid_code[block]=1; |
f76eeef9 |
982 | |
57871462 |
983 | #ifdef USE_MINI_HT |
984 | memset(mini_ht,-1,sizeof(mini_ht)); |
985 | #endif |
986 | } |
9be4ba64 |
987 | |
988 | void invalidate_block(u_int block) |
989 | { |
990 | u_int page=get_page(block<<12); |
991 | u_int vpage=get_vpage(block<<12); |
992 | inv_debug("INVALIDATE: %x (%d)\n",block<<12,page); |
993 | //inv_debug("invalid_code[block]=%d\n",invalid_code[block]); |
994 | u_int first,last; |
995 | first=last=page; |
996 | struct ll_entry *head; |
997 | head=jump_dirty[vpage]; |
998 | //printf("page=%d vpage=%d\n",page,vpage); |
999 | while(head!=NULL) { |
9be4ba64 |
1000 | if(vpage>2047||(head->vaddr>>12)==block) { // Ignore vaddr hash collision |
01d26796 |
1001 | u_char *start, *end; |
1002 | get_bounds(head->addr, &start, &end); |
1003 | //printf("start: %p end: %p\n", start, end); |
1004 | if (page < 2048 && start >= rdram && end < rdram+RAM_SIZE) { |
1005 | if (((start-rdram)>>12) <= page && ((end-1-rdram)>>12) >= page) { |
1006 | if ((((start-rdram)>>12)&2047) < first) first = ((start-rdram)>>12)&2047; |
1007 | if ((((end-1-rdram)>>12)&2047) > last) last = ((end-1-rdram)>>12)&2047; |
9be4ba64 |
1008 | } |
1009 | } |
9be4ba64 |
1010 | } |
1011 | head=head->next; |
1012 | } |
1013 | invalidate_block_range(block,first,last); |
1014 | } |
1015 | |
57871462 |
1016 | void invalidate_addr(u_int addr) |
1017 | { |
9be4ba64 |
1018 | //static int rhits; |
1019 | // this check is done by the caller |
1020 | //if (inv_code_start<=addr&&addr<=inv_code_end) { rhits++; return; } |
d25604ca |
1021 | u_int page=get_vpage(addr); |
9be4ba64 |
1022 | if(page<2048) { // RAM |
1023 | struct ll_entry *head; |
1024 | u_int addr_min=~0, addr_max=0; |
4a35de07 |
1025 | u_int mask=RAM_SIZE-1; |
1026 | u_int addr_main=0x80000000|(addr&mask); |
9be4ba64 |
1027 | int pg1; |
4a35de07 |
1028 | inv_code_start=addr_main&~0xfff; |
1029 | inv_code_end=addr_main|0xfff; |
9be4ba64 |
1030 | pg1=page; |
1031 | if (pg1>0) { |
1032 | // must check previous page too because of spans.. |
1033 | pg1--; |
1034 | inv_code_start-=0x1000; |
1035 | } |
1036 | for(;pg1<=page;pg1++) { |
1037 | for(head=jump_dirty[pg1];head!=NULL;head=head->next) { |
01d26796 |
1038 | u_char *start_h, *end_h; |
1039 | u_int start, end; |
1040 | get_bounds(head->addr, &start_h, &end_h); |
1041 | start = (uintptr_t)start_h - ram_offset; |
1042 | end = (uintptr_t)end_h - ram_offset; |
4a35de07 |
1043 | if(start<=addr_main&&addr_main<end) { |
9be4ba64 |
1044 | if(start<addr_min) addr_min=start; |
1045 | if(end>addr_max) addr_max=end; |
1046 | } |
4a35de07 |
1047 | else if(addr_main<start) { |
9be4ba64 |
1048 | if(start<inv_code_end) |
1049 | inv_code_end=start-1; |
1050 | } |
1051 | else { |
1052 | if(end>inv_code_start) |
1053 | inv_code_start=end; |
1054 | } |
1055 | } |
1056 | } |
1057 | if (addr_min!=~0) { |
1058 | inv_debug("INV ADDR: %08x hit %08x-%08x\n", addr, addr_min, addr_max); |
1059 | inv_code_start=inv_code_end=~0; |
1060 | invalidate_block_range(addr>>12,(addr_min&mask)>>12,(addr_max&mask)>>12); |
1061 | return; |
1062 | } |
1063 | else { |
4a35de07 |
1064 | inv_code_start=(addr&~mask)|(inv_code_start&mask); |
1065 | inv_code_end=(addr&~mask)|(inv_code_end&mask); |
d25604ca |
1066 | inv_debug("INV ADDR: %08x miss, inv %08x-%08x, sk %d\n", addr, inv_code_start, inv_code_end, 0); |
9be4ba64 |
1067 | return; |
d25604ca |
1068 | } |
9be4ba64 |
1069 | } |
57871462 |
1070 | invalidate_block(addr>>12); |
1071 | } |
9be4ba64 |
1072 | |
dd3a91a1 |
1073 | // This is called when loading a save state. |
1074 | // Anything could have changed, so invalidate everything. |
57871462 |
1075 | void invalidate_all_pages() |
1076 | { |
581335b0 |
1077 | u_int page; |
57871462 |
1078 | for(page=0;page<4096;page++) |
1079 | invalidate_page(page); |
1080 | for(page=0;page<1048576;page++) |
1081 | if(!invalid_code[page]) { |
1082 | restore_candidate[(page&2047)>>3]|=1<<(page&7); |
1083 | restore_candidate[((page&2047)>>3)+256]|=1<<(page&7); |
1084 | } |
57871462 |
1085 | #ifdef USE_MINI_HT |
1086 | memset(mini_ht,-1,sizeof(mini_ht)); |
1087 | #endif |
57871462 |
1088 | } |
1089 | |
1090 | // Add an entry to jump_out after making a link |
1091 | void add_link(u_int vaddr,void *src) |
1092 | { |
94d23bb9 |
1093 | u_int page=get_page(vaddr); |
643aeae3 |
1094 | inv_debug("add_link: %p -> %x (%d)\n",src,vaddr,page); |
76f71c27 |
1095 | int *ptr=(int *)(src+4); |
1096 | assert((*ptr&0x0fff0000)==0x059f0000); |
581335b0 |
1097 | (void)ptr; |
57871462 |
1098 | ll_add(jump_out+page,vaddr,src); |
643aeae3 |
1099 | //void *ptr=get_pointer(src); |
1100 | //inv_debug("add_link: Pointer is to %p\n",ptr); |
57871462 |
1101 | } |
1102 | |
1103 | // If a code block was found to be unmodified (bit was set in |
1104 | // restore_candidate) and it remains unmodified (bit is clear |
1105 | // in invalid_code) then move the entries for that 4K page from |
1106 | // the dirty list to the clean list. |
1107 | void clean_blocks(u_int page) |
1108 | { |
1109 | struct ll_entry *head; |
1110 | inv_debug("INV: clean_blocks page=%d\n",page); |
1111 | head=jump_dirty[page]; |
1112 | while(head!=NULL) { |
1113 | if(!invalid_code[head->vaddr>>12]) { |
1114 | // Don't restore blocks which are about to expire from the cache |
df4dc2b1 |
1115 | if (doesnt_expire_soon(head->addr)) { |
581335b0 |
1116 | if(verify_dirty(head->addr)) { |
01d26796 |
1117 | u_char *start, *end; |
643aeae3 |
1118 | //printf("Possibly Restore %x (%p)\n",head->vaddr, head->addr); |
57871462 |
1119 | u_int i; |
1120 | u_int inv=0; |
01d26796 |
1121 | get_bounds(head->addr, &start, &end); |
1122 | if (start - rdram < RAM_SIZE) { |
1123 | for (i = (start-rdram+0x80000000)>>12; i <= (end-1-rdram+0x80000000)>>12; i++) { |
57871462 |
1124 | inv|=invalid_code[i]; |
1125 | } |
1126 | } |
4cb76aa4 |
1127 | else if((signed int)head->vaddr>=(signed int)0x80000000+RAM_SIZE) { |
57871462 |
1128 | inv=1; |
1129 | } |
1130 | if(!inv) { |
df4dc2b1 |
1131 | void *clean_addr = get_clean_addr(head->addr); |
1132 | if (doesnt_expire_soon(clean_addr)) { |
57871462 |
1133 | u_int ppage=page; |
643aeae3 |
1134 | inv_debug("INV: Restored %x (%p/%p)\n",head->vaddr, head->addr, clean_addr); |
57871462 |
1135 | //printf("page=%x, addr=%x\n",page,head->vaddr); |
1136 | //assert(head->vaddr>>12==(page|0x80000)); |
de5a60c3 |
1137 | ll_add_flags(jump_in+ppage,head->vaddr,head->reg_sv_flags,clean_addr); |
df4dc2b1 |
1138 | struct ht_entry *ht_bin = hash_table_get(head->vaddr); |
1139 | if (ht_bin->vaddr[0] == head->vaddr) |
1140 | ht_bin->tcaddr[0] = clean_addr; // Replace existing entry |
1141 | if (ht_bin->vaddr[1] == head->vaddr) |
1142 | ht_bin->tcaddr[1] = clean_addr; // Replace existing entry |
57871462 |
1143 | } |
1144 | } |
1145 | } |
1146 | } |
1147 | } |
1148 | head=head->next; |
1149 | } |
1150 | } |
1151 | |
ad49de89 |
1152 | static void mov_alloc(struct regstat *current,int i) |
57871462 |
1153 | { |
1154 | // Note: Don't need to actually alloc the source registers |
ad49de89 |
1155 | //alloc_reg(current,i,rs1[i]); |
1156 | alloc_reg(current,i,rt1[i]); |
1157 | |
57871462 |
1158 | clear_const(current,rs1[i]); |
1159 | clear_const(current,rt1[i]); |
1160 | dirty_reg(current,rt1[i]); |
1161 | } |
1162 | |
ad49de89 |
1163 | static void shiftimm_alloc(struct regstat *current,int i) |
57871462 |
1164 | { |
57871462 |
1165 | if(opcode2[i]<=0x3) // SLL/SRL/SRA |
1166 | { |
1167 | if(rt1[i]) { |
1168 | if(rs1[i]&&needed_again(rs1[i],i)) alloc_reg(current,i,rs1[i]); |
1169 | else lt1[i]=rs1[i]; |
1170 | alloc_reg(current,i,rt1[i]); |
57871462 |
1171 | dirty_reg(current,rt1[i]); |
dc49e339 |
1172 | if(is_const(current,rs1[i])) { |
1173 | int v=get_const(current,rs1[i]); |
1174 | if(opcode2[i]==0x00) set_const(current,rt1[i],v<<imm[i]); |
1175 | if(opcode2[i]==0x02) set_const(current,rt1[i],(u_int)v>>imm[i]); |
1176 | if(opcode2[i]==0x03) set_const(current,rt1[i],v>>imm[i]); |
1177 | } |
1178 | else clear_const(current,rt1[i]); |
57871462 |
1179 | } |
1180 | } |
dc49e339 |
1181 | else |
1182 | { |
1183 | clear_const(current,rs1[i]); |
1184 | clear_const(current,rt1[i]); |
1185 | } |
1186 | |
57871462 |
1187 | if(opcode2[i]>=0x38&&opcode2[i]<=0x3b) // DSLL/DSRL/DSRA |
1188 | { |
9c45ca93 |
1189 | assert(0); |
57871462 |
1190 | } |
1191 | if(opcode2[i]==0x3c) // DSLL32 |
1192 | { |
9c45ca93 |
1193 | assert(0); |
57871462 |
1194 | } |
1195 | if(opcode2[i]==0x3e) // DSRL32 |
1196 | { |
9c45ca93 |
1197 | assert(0); |
57871462 |
1198 | } |
1199 | if(opcode2[i]==0x3f) // DSRA32 |
1200 | { |
9c45ca93 |
1201 | assert(0); |
57871462 |
1202 | } |
1203 | } |
1204 | |
ad49de89 |
1205 | static void shift_alloc(struct regstat *current,int i) |
57871462 |
1206 | { |
1207 | if(rt1[i]) { |
1208 | if(opcode2[i]<=0x07) // SLLV/SRLV/SRAV |
1209 | { |
1210 | if(rs1[i]) alloc_reg(current,i,rs1[i]); |
1211 | if(rs2[i]) alloc_reg(current,i,rs2[i]); |
1212 | alloc_reg(current,i,rt1[i]); |
e1190b87 |
1213 | if(rt1[i]==rs2[i]) { |
1214 | alloc_reg_temp(current,i,-1); |
1215 | minimum_free_regs[i]=1; |
1216 | } |
57871462 |
1217 | } else { // DSLLV/DSRLV/DSRAV |
00fa9369 |
1218 | assert(0); |
57871462 |
1219 | } |
1220 | clear_const(current,rs1[i]); |
1221 | clear_const(current,rs2[i]); |
1222 | clear_const(current,rt1[i]); |
1223 | dirty_reg(current,rt1[i]); |
1224 | } |
1225 | } |
1226 | |
ad49de89 |
1227 | static void alu_alloc(struct regstat *current,int i) |
57871462 |
1228 | { |
1229 | if(opcode2[i]>=0x20&&opcode2[i]<=0x23) { // ADD/ADDU/SUB/SUBU |
1230 | if(rt1[i]) { |
1231 | if(rs1[i]&&rs2[i]) { |
1232 | alloc_reg(current,i,rs1[i]); |
1233 | alloc_reg(current,i,rs2[i]); |
1234 | } |
1235 | else { |
1236 | if(rs1[i]&&needed_again(rs1[i],i)) alloc_reg(current,i,rs1[i]); |
1237 | if(rs2[i]&&needed_again(rs2[i],i)) alloc_reg(current,i,rs2[i]); |
1238 | } |
1239 | alloc_reg(current,i,rt1[i]); |
1240 | } |
57871462 |
1241 | } |
1242 | if(opcode2[i]==0x2a||opcode2[i]==0x2b) { // SLT/SLTU |
1243 | if(rt1[i]) { |
ad49de89 |
1244 | alloc_reg(current,i,rs1[i]); |
1245 | alloc_reg(current,i,rs2[i]); |
1246 | alloc_reg(current,i,rt1[i]); |
57871462 |
1247 | } |
57871462 |
1248 | } |
1249 | if(opcode2[i]>=0x24&&opcode2[i]<=0x27) { // AND/OR/XOR/NOR |
1250 | if(rt1[i]) { |
1251 | if(rs1[i]&&rs2[i]) { |
1252 | alloc_reg(current,i,rs1[i]); |
1253 | alloc_reg(current,i,rs2[i]); |
1254 | } |
1255 | else |
1256 | { |
1257 | if(rs1[i]&&needed_again(rs1[i],i)) alloc_reg(current,i,rs1[i]); |
1258 | if(rs2[i]&&needed_again(rs2[i],i)) alloc_reg(current,i,rs2[i]); |
1259 | } |
1260 | alloc_reg(current,i,rt1[i]); |
57871462 |
1261 | } |
1262 | } |
1263 | if(opcode2[i]>=0x2c&&opcode2[i]<=0x2f) { // DADD/DADDU/DSUB/DSUBU |
00fa9369 |
1264 | assert(0); |
57871462 |
1265 | } |
1266 | clear_const(current,rs1[i]); |
1267 | clear_const(current,rs2[i]); |
1268 | clear_const(current,rt1[i]); |
1269 | dirty_reg(current,rt1[i]); |
1270 | } |
1271 | |
ad49de89 |
1272 | static void imm16_alloc(struct regstat *current,int i) |
57871462 |
1273 | { |
1274 | if(rs1[i]&&needed_again(rs1[i],i)) alloc_reg(current,i,rs1[i]); |
1275 | else lt1[i]=rs1[i]; |
1276 | if(rt1[i]) alloc_reg(current,i,rt1[i]); |
1277 | if(opcode[i]==0x18||opcode[i]==0x19) { // DADDI/DADDIU |
00fa9369 |
1278 | assert(0); |
57871462 |
1279 | } |
1280 | else if(opcode[i]==0x0a||opcode[i]==0x0b) { // SLTI/SLTIU |
57871462 |
1281 | clear_const(current,rs1[i]); |
1282 | clear_const(current,rt1[i]); |
1283 | } |
1284 | else if(opcode[i]>=0x0c&&opcode[i]<=0x0e) { // ANDI/ORI/XORI |
57871462 |
1285 | if(is_const(current,rs1[i])) { |
1286 | int v=get_const(current,rs1[i]); |
1287 | if(opcode[i]==0x0c) set_const(current,rt1[i],v&imm[i]); |
1288 | if(opcode[i]==0x0d) set_const(current,rt1[i],v|imm[i]); |
1289 | if(opcode[i]==0x0e) set_const(current,rt1[i],v^imm[i]); |
1290 | } |
1291 | else clear_const(current,rt1[i]); |
1292 | } |
1293 | else if(opcode[i]==0x08||opcode[i]==0x09) { // ADDI/ADDIU |
1294 | if(is_const(current,rs1[i])) { |
1295 | int v=get_const(current,rs1[i]); |
1296 | set_const(current,rt1[i],v+imm[i]); |
1297 | } |
1298 | else clear_const(current,rt1[i]); |
57871462 |
1299 | } |
1300 | else { |
1301 | set_const(current,rt1[i],((long long)((short)imm[i]))<<16); // LUI |
57871462 |
1302 | } |
1303 | dirty_reg(current,rt1[i]); |
1304 | } |
1305 | |
ad49de89 |
1306 | static void load_alloc(struct regstat *current,int i) |
57871462 |
1307 | { |
1308 | clear_const(current,rt1[i]); |
1309 | //if(rs1[i]!=rt1[i]&&needed_again(rs1[i],i)) clear_const(current,rs1[i]); // Does this help or hurt? |
1310 | if(!rs1[i]) current->u&=~1LL; // Allow allocating r0 if it's the source register |
1311 | if(needed_again(rs1[i],i)) alloc_reg(current,i,rs1[i]); |
373d1d07 |
1312 | if(rt1[i]&&!((current->u>>rt1[i])&1)) { |
57871462 |
1313 | alloc_reg(current,i,rt1[i]); |
373d1d07 |
1314 | assert(get_reg(current->regmap,rt1[i])>=0); |
57871462 |
1315 | if(opcode[i]==0x27||opcode[i]==0x37) // LWU/LD |
1316 | { |
ad49de89 |
1317 | assert(0); |
57871462 |
1318 | } |
1319 | else if(opcode[i]==0x1A||opcode[i]==0x1B) // LDL/LDR |
1320 | { |
ad49de89 |
1321 | assert(0); |
57871462 |
1322 | } |
57871462 |
1323 | dirty_reg(current,rt1[i]); |
57871462 |
1324 | // LWL/LWR need a temporary register for the old value |
1325 | if(opcode[i]==0x22||opcode[i]==0x26) |
1326 | { |
1327 | alloc_reg(current,i,FTEMP); |
1328 | alloc_reg_temp(current,i,-1); |
e1190b87 |
1329 | minimum_free_regs[i]=1; |
57871462 |
1330 | } |
1331 | } |
1332 | else |
1333 | { |
373d1d07 |
1334 | // Load to r0 or unneeded register (dummy load) |
57871462 |
1335 | // but we still need a register to calculate the address |
535d208a |
1336 | if(opcode[i]==0x22||opcode[i]==0x26) |
1337 | { |
1338 | alloc_reg(current,i,FTEMP); // LWL/LWR need another temporary |
1339 | } |
57871462 |
1340 | alloc_reg_temp(current,i,-1); |
e1190b87 |
1341 | minimum_free_regs[i]=1; |
535d208a |
1342 | if(opcode[i]==0x1A||opcode[i]==0x1B) // LDL/LDR |
1343 | { |
ad49de89 |
1344 | assert(0); |
535d208a |
1345 | } |
57871462 |
1346 | } |
1347 | } |
1348 | |
1349 | void store_alloc(struct regstat *current,int i) |
1350 | { |
1351 | clear_const(current,rs2[i]); |
1352 | if(!(rs2[i])) current->u&=~1LL; // Allow allocating r0 if necessary |
1353 | if(needed_again(rs1[i],i)) alloc_reg(current,i,rs1[i]); |
1354 | alloc_reg(current,i,rs2[i]); |
1355 | if(opcode[i]==0x2c||opcode[i]==0x2d||opcode[i]==0x3f) { // 64-bit SDL/SDR/SD |
ad49de89 |
1356 | assert(0); |
57871462 |
1357 | } |
57871462 |
1358 | #if defined(HOST_IMM8) |
1359 | // On CPUs without 32-bit immediates we need a pointer to invalid_code |
1360 | else alloc_reg(current,i,INVCP); |
1361 | #endif |
b7918751 |
1362 | if(opcode[i]==0x2a||opcode[i]==0x2e||opcode[i]==0x2c||opcode[i]==0x2d) { // SWL/SWL/SDL/SDR |
57871462 |
1363 | alloc_reg(current,i,FTEMP); |
1364 | } |
1365 | // We need a temporary register for address generation |
1366 | alloc_reg_temp(current,i,-1); |
e1190b87 |
1367 | minimum_free_regs[i]=1; |
57871462 |
1368 | } |
1369 | |
1370 | void c1ls_alloc(struct regstat *current,int i) |
1371 | { |
1372 | //clear_const(current,rs1[i]); // FIXME |
1373 | clear_const(current,rt1[i]); |
1374 | if(needed_again(rs1[i],i)) alloc_reg(current,i,rs1[i]); |
1375 | alloc_reg(current,i,CSREG); // Status |
1376 | alloc_reg(current,i,FTEMP); |
1377 | if(opcode[i]==0x35||opcode[i]==0x3d) { // 64-bit LDC1/SDC1 |
ad49de89 |
1378 | assert(0); |
57871462 |
1379 | } |
57871462 |
1380 | #if defined(HOST_IMM8) |
1381 | // On CPUs without 32-bit immediates we need a pointer to invalid_code |
1382 | else if((opcode[i]&0x3b)==0x39) // SWC1/SDC1 |
1383 | alloc_reg(current,i,INVCP); |
1384 | #endif |
1385 | // We need a temporary register for address generation |
1386 | alloc_reg_temp(current,i,-1); |
1387 | } |
1388 | |
b9b61529 |
1389 | void c2ls_alloc(struct regstat *current,int i) |
1390 | { |
1391 | clear_const(current,rt1[i]); |
1392 | if(needed_again(rs1[i],i)) alloc_reg(current,i,rs1[i]); |
1393 | alloc_reg(current,i,FTEMP); |
b9b61529 |
1394 | #if defined(HOST_IMM8) |
1395 | // On CPUs without 32-bit immediates we need a pointer to invalid_code |
1edfcc68 |
1396 | if((opcode[i]&0x3b)==0x3a) // SWC2/SDC2 |
b9b61529 |
1397 | alloc_reg(current,i,INVCP); |
1398 | #endif |
1399 | // We need a temporary register for address generation |
1400 | alloc_reg_temp(current,i,-1); |
e1190b87 |
1401 | minimum_free_regs[i]=1; |
b9b61529 |
1402 | } |
1403 | |
57871462 |
1404 | #ifndef multdiv_alloc |
1405 | void multdiv_alloc(struct regstat *current,int i) |
1406 | { |
1407 | // case 0x18: MULT |
1408 | // case 0x19: MULTU |
1409 | // case 0x1A: DIV |
1410 | // case 0x1B: DIVU |
1411 | // case 0x1C: DMULT |
1412 | // case 0x1D: DMULTU |
1413 | // case 0x1E: DDIV |
1414 | // case 0x1F: DDIVU |
1415 | clear_const(current,rs1[i]); |
1416 | clear_const(current,rs2[i]); |
1417 | if(rs1[i]&&rs2[i]) |
1418 | { |
1419 | if((opcode2[i]&4)==0) // 32-bit |
1420 | { |
1421 | current->u&=~(1LL<<HIREG); |
1422 | current->u&=~(1LL<<LOREG); |
1423 | alloc_reg(current,i,HIREG); |
1424 | alloc_reg(current,i,LOREG); |
1425 | alloc_reg(current,i,rs1[i]); |
1426 | alloc_reg(current,i,rs2[i]); |
57871462 |
1427 | dirty_reg(current,HIREG); |
1428 | dirty_reg(current,LOREG); |
1429 | } |
1430 | else // 64-bit |
1431 | { |
00fa9369 |
1432 | assert(0); |
57871462 |
1433 | } |
1434 | } |
1435 | else |
1436 | { |
1437 | // Multiply by zero is zero. |
1438 | // MIPS does not have a divide by zero exception. |
1439 | // The result is undefined, we return zero. |
1440 | alloc_reg(current,i,HIREG); |
1441 | alloc_reg(current,i,LOREG); |
57871462 |
1442 | dirty_reg(current,HIREG); |
1443 | dirty_reg(current,LOREG); |
1444 | } |
1445 | } |
1446 | #endif |
1447 | |
1448 | void cop0_alloc(struct regstat *current,int i) |
1449 | { |
1450 | if(opcode2[i]==0) // MFC0 |
1451 | { |
1452 | if(rt1[i]) { |
1453 | clear_const(current,rt1[i]); |
1454 | alloc_all(current,i); |
1455 | alloc_reg(current,i,rt1[i]); |
57871462 |
1456 | dirty_reg(current,rt1[i]); |
1457 | } |
1458 | } |
1459 | else if(opcode2[i]==4) // MTC0 |
1460 | { |
1461 | if(rs1[i]){ |
1462 | clear_const(current,rs1[i]); |
1463 | alloc_reg(current,i,rs1[i]); |
1464 | alloc_all(current,i); |
1465 | } |
1466 | else { |
1467 | alloc_all(current,i); // FIXME: Keep r0 |
1468 | current->u&=~1LL; |
1469 | alloc_reg(current,i,0); |
1470 | } |
1471 | } |
1472 | else |
1473 | { |
1474 | // TLBR/TLBWI/TLBWR/TLBP/ERET |
1475 | assert(opcode2[i]==0x10); |
1476 | alloc_all(current,i); |
1477 | } |
e1190b87 |
1478 | minimum_free_regs[i]=HOST_REGS; |
57871462 |
1479 | } |
1480 | |
00fa9369 |
1481 | static void cop12_alloc(struct regstat *current,int i) |
57871462 |
1482 | { |
1483 | alloc_reg(current,i,CSREG); // Load status |
00fa9369 |
1484 | if(opcode2[i]<3) // MFC1/CFC1 |
57871462 |
1485 | { |
7de557a6 |
1486 | if(rt1[i]){ |
1487 | clear_const(current,rt1[i]); |
00fa9369 |
1488 | alloc_reg(current,i,rt1[i]); |
7de557a6 |
1489 | dirty_reg(current,rt1[i]); |
57871462 |
1490 | } |
57871462 |
1491 | alloc_reg_temp(current,i,-1); |
1492 | } |
00fa9369 |
1493 | else if(opcode2[i]>3) // MTC1/CTC1 |
57871462 |
1494 | { |
1495 | if(rs1[i]){ |
1496 | clear_const(current,rs1[i]); |
00fa9369 |
1497 | alloc_reg(current,i,rs1[i]); |
57871462 |
1498 | } |
1499 | else { |
1500 | current->u&=~1LL; |
1501 | alloc_reg(current,i,0); |
57871462 |
1502 | } |
00fa9369 |
1503 | alloc_reg_temp(current,i,-1); |
57871462 |
1504 | } |
e1190b87 |
1505 | minimum_free_regs[i]=1; |
57871462 |
1506 | } |
00fa9369 |
1507 | |
b9b61529 |
1508 | void c2op_alloc(struct regstat *current,int i) |
1509 | { |
1510 | alloc_reg_temp(current,i,-1); |
1511 | } |
57871462 |
1512 | |
1513 | void syscall_alloc(struct regstat *current,int i) |
1514 | { |
1515 | alloc_cc(current,i); |
1516 | dirty_reg(current,CCREG); |
1517 | alloc_all(current,i); |
e1190b87 |
1518 | minimum_free_regs[i]=HOST_REGS; |
57871462 |
1519 | current->isconst=0; |
1520 | } |
1521 | |
1522 | void delayslot_alloc(struct regstat *current,int i) |
1523 | { |
1524 | switch(itype[i]) { |
1525 | case UJUMP: |
1526 | case CJUMP: |
1527 | case SJUMP: |
1528 | case RJUMP: |
57871462 |
1529 | case SYSCALL: |
7139f3c8 |
1530 | case HLECALL: |
57871462 |
1531 | case SPAN: |
1532 | assem_debug("jump in the delay slot. this shouldn't happen.\n");//exit(1); |
c43b5311 |
1533 | SysPrintf("Disabled speculative precompilation\n"); |
57871462 |
1534 | stop_after_jal=1; |
1535 | break; |
1536 | case IMM16: |
1537 | imm16_alloc(current,i); |
1538 | break; |
1539 | case LOAD: |
1540 | case LOADLR: |
1541 | load_alloc(current,i); |
1542 | break; |
1543 | case STORE: |
1544 | case STORELR: |
1545 | store_alloc(current,i); |
1546 | break; |
1547 | case ALU: |
1548 | alu_alloc(current,i); |
1549 | break; |
1550 | case SHIFT: |
1551 | shift_alloc(current,i); |
1552 | break; |
1553 | case MULTDIV: |
1554 | multdiv_alloc(current,i); |
1555 | break; |
1556 | case SHIFTIMM: |
1557 | shiftimm_alloc(current,i); |
1558 | break; |
1559 | case MOV: |
1560 | mov_alloc(current,i); |
1561 | break; |
1562 | case COP0: |
1563 | cop0_alloc(current,i); |
1564 | break; |
1565 | case COP1: |
b9b61529 |
1566 | case COP2: |
00fa9369 |
1567 | cop12_alloc(current,i); |
57871462 |
1568 | break; |
1569 | case C1LS: |
1570 | c1ls_alloc(current,i); |
1571 | break; |
b9b61529 |
1572 | case C2LS: |
1573 | c2ls_alloc(current,i); |
1574 | break; |
b9b61529 |
1575 | case C2OP: |
1576 | c2op_alloc(current,i); |
1577 | break; |
57871462 |
1578 | } |
1579 | } |
1580 | |
1581 | // Special case where a branch and delay slot span two pages in virtual memory |
1582 | static void pagespan_alloc(struct regstat *current,int i) |
1583 | { |
1584 | current->isconst=0; |
1585 | current->wasconst=0; |
1586 | regs[i].wasconst=0; |
e1190b87 |
1587 | minimum_free_regs[i]=HOST_REGS; |
57871462 |
1588 | alloc_all(current,i); |
1589 | alloc_cc(current,i); |
1590 | dirty_reg(current,CCREG); |
1591 | if(opcode[i]==3) // JAL |
1592 | { |
1593 | alloc_reg(current,i,31); |
1594 | dirty_reg(current,31); |
1595 | } |
1596 | if(opcode[i]==0&&(opcode2[i]&0x3E)==8) // JR/JALR |
1597 | { |
1598 | alloc_reg(current,i,rs1[i]); |
5067f341 |
1599 | if (rt1[i]!=0) { |
1600 | alloc_reg(current,i,rt1[i]); |
1601 | dirty_reg(current,rt1[i]); |
57871462 |
1602 | } |
1603 | } |
1604 | if((opcode[i]&0x2E)==4) // BEQ/BNE/BEQL/BNEL |
1605 | { |
1606 | if(rs1[i]) alloc_reg(current,i,rs1[i]); |
1607 | if(rs2[i]) alloc_reg(current,i,rs2[i]); |
57871462 |
1608 | } |
1609 | else |
1610 | if((opcode[i]&0x2E)==6) // BLEZ/BGTZ/BLEZL/BGTZL |
1611 | { |
1612 | if(rs1[i]) alloc_reg(current,i,rs1[i]); |
57871462 |
1613 | } |
57871462 |
1614 | //else ... |
1615 | } |
1616 | |
b14b6a8f |
1617 | static void add_stub(enum stub_type type, void *addr, void *retaddr, |
1618 | u_int a, uintptr_t b, uintptr_t c, u_int d, u_int e) |
1619 | { |
1620 | assert(a < ARRAY_SIZE(stubs)); |
1621 | stubs[stubcount].type = type; |
1622 | stubs[stubcount].addr = addr; |
1623 | stubs[stubcount].retaddr = retaddr; |
1624 | stubs[stubcount].a = a; |
1625 | stubs[stubcount].b = b; |
1626 | stubs[stubcount].c = c; |
1627 | stubs[stubcount].d = d; |
1628 | stubs[stubcount].e = e; |
57871462 |
1629 | stubcount++; |
1630 | } |
1631 | |
b14b6a8f |
1632 | static void add_stub_r(enum stub_type type, void *addr, void *retaddr, |
1633 | int i, int addr_reg, struct regstat *i_regs, int ccadj, u_int reglist) |
1634 | { |
1635 | add_stub(type, addr, retaddr, i, addr_reg, (uintptr_t)i_regs, ccadj, reglist); |
1636 | } |
1637 | |
57871462 |
1638 | // Write out a single register |
ad49de89 |
1639 | static void wb_register(signed char r,signed char regmap[],uint64_t dirty) |
57871462 |
1640 | { |
1641 | int hr; |
1642 | for(hr=0;hr<HOST_REGS;hr++) { |
1643 | if(hr!=EXCLUDE_REG) { |
1644 | if((regmap[hr]&63)==r) { |
1645 | if((dirty>>hr)&1) { |
ad49de89 |
1646 | assert(regmap[hr]<64); |
1647 | emit_storereg(r,hr); |
57871462 |
1648 | } |
1649 | } |
1650 | } |
1651 | } |
1652 | } |
1653 | |
57871462 |
1654 | void rlist() |
1655 | { |
1656 | int i; |
1657 | printf("TRACE: "); |
1658 | for(i=0;i<32;i++) |
1659 | printf("r%d:%8x%8x ",i,((int *)(reg+i))[1],((int *)(reg+i))[0]); |
1660 | printf("\n"); |
57871462 |
1661 | } |
1662 | |
57871462 |
1663 | void alu_assemble(int i,struct regstat *i_regs) |
1664 | { |
1665 | if(opcode2[i]>=0x20&&opcode2[i]<=0x23) { // ADD/ADDU/SUB/SUBU |
1666 | if(rt1[i]) { |
1667 | signed char s1,s2,t; |
1668 | t=get_reg(i_regs->regmap,rt1[i]); |
1669 | if(t>=0) { |
1670 | s1=get_reg(i_regs->regmap,rs1[i]); |
1671 | s2=get_reg(i_regs->regmap,rs2[i]); |
1672 | if(rs1[i]&&rs2[i]) { |
1673 | assert(s1>=0); |
1674 | assert(s2>=0); |
1675 | if(opcode2[i]&2) emit_sub(s1,s2,t); |
1676 | else emit_add(s1,s2,t); |
1677 | } |
1678 | else if(rs1[i]) { |
1679 | if(s1>=0) emit_mov(s1,t); |
1680 | else emit_loadreg(rs1[i],t); |
1681 | } |
1682 | else if(rs2[i]) { |
1683 | if(s2>=0) { |
1684 | if(opcode2[i]&2) emit_neg(s2,t); |
1685 | else emit_mov(s2,t); |
1686 | } |
1687 | else { |
1688 | emit_loadreg(rs2[i],t); |
1689 | if(opcode2[i]&2) emit_neg(t,t); |
1690 | } |
1691 | } |
1692 | else emit_zeroreg(t); |
1693 | } |
1694 | } |
1695 | } |
1696 | if(opcode2[i]>=0x2c&&opcode2[i]<=0x2f) { // DADD/DADDU/DSUB/DSUBU |
00fa9369 |
1697 | assert(0); |
57871462 |
1698 | } |
1699 | if(opcode2[i]==0x2a||opcode2[i]==0x2b) { // SLT/SLTU |
1700 | if(rt1[i]) { |
ad49de89 |
1701 | signed char s1l,s2l,t; |
57871462 |
1702 | { |
57871462 |
1703 | t=get_reg(i_regs->regmap,rt1[i]); |
1704 | //assert(t>=0); |
1705 | if(t>=0) { |
1706 | s1l=get_reg(i_regs->regmap,rs1[i]); |
1707 | s2l=get_reg(i_regs->regmap,rs2[i]); |
1708 | if(rs2[i]==0) // rx<r0 |
1709 | { |
1710 | assert(s1l>=0); |
1711 | if(opcode2[i]==0x2a) // SLT |
1712 | emit_shrimm(s1l,31,t); |
1713 | else // SLTU (unsigned can not be less than zero) |
1714 | emit_zeroreg(t); |
1715 | } |
1716 | else if(rs1[i]==0) // r0<rx |
1717 | { |
1718 | assert(s2l>=0); |
1719 | if(opcode2[i]==0x2a) // SLT |
1720 | emit_set_gz32(s2l,t); |
1721 | else // SLTU (set if not zero) |
1722 | emit_set_nz32(s2l,t); |
1723 | } |
1724 | else{ |
1725 | assert(s1l>=0);assert(s2l>=0); |
1726 | if(opcode2[i]==0x2a) // SLT |
1727 | emit_set_if_less32(s1l,s2l,t); |
1728 | else // SLTU |
1729 | emit_set_if_carry32(s1l,s2l,t); |
1730 | } |
1731 | } |
1732 | } |
1733 | } |
1734 | } |
1735 | if(opcode2[i]>=0x24&&opcode2[i]<=0x27) { // AND/OR/XOR/NOR |
1736 | if(rt1[i]) { |
ad49de89 |
1737 | signed char s1l,s2l,tl; |
57871462 |
1738 | tl=get_reg(i_regs->regmap,rt1[i]); |
57871462 |
1739 | { |
57871462 |
1740 | if(tl>=0) { |
1741 | s1l=get_reg(i_regs->regmap,rs1[i]); |
1742 | s2l=get_reg(i_regs->regmap,rs2[i]); |
1743 | if(rs1[i]&&rs2[i]) { |
1744 | assert(s1l>=0); |
1745 | assert(s2l>=0); |
1746 | if(opcode2[i]==0x24) { // AND |
1747 | emit_and(s1l,s2l,tl); |
1748 | } else |
1749 | if(opcode2[i]==0x25) { // OR |
1750 | emit_or(s1l,s2l,tl); |
1751 | } else |
1752 | if(opcode2[i]==0x26) { // XOR |
1753 | emit_xor(s1l,s2l,tl); |
1754 | } else |
1755 | if(opcode2[i]==0x27) { // NOR |
1756 | emit_or(s1l,s2l,tl); |
1757 | emit_not(tl,tl); |
1758 | } |
1759 | } |
1760 | else |
1761 | { |
1762 | if(opcode2[i]==0x24) { // AND |
1763 | emit_zeroreg(tl); |
1764 | } else |
1765 | if(opcode2[i]==0x25||opcode2[i]==0x26) { // OR/XOR |
1766 | if(rs1[i]){ |
1767 | if(s1l>=0) emit_mov(s1l,tl); |
1768 | else emit_loadreg(rs1[i],tl); // CHECK: regmap_entry? |
1769 | } |
1770 | else |
1771 | if(rs2[i]){ |
1772 | if(s2l>=0) emit_mov(s2l,tl); |
1773 | else emit_loadreg(rs2[i],tl); // CHECK: regmap_entry? |
1774 | } |
1775 | else emit_zeroreg(tl); |
1776 | } else |
1777 | if(opcode2[i]==0x27) { // NOR |
1778 | if(rs1[i]){ |
1779 | if(s1l>=0) emit_not(s1l,tl); |
1780 | else { |
1781 | emit_loadreg(rs1[i],tl); |
1782 | emit_not(tl,tl); |
1783 | } |
1784 | } |
1785 | else |
1786 | if(rs2[i]){ |
1787 | if(s2l>=0) emit_not(s2l,tl); |
1788 | else { |
1789 | emit_loadreg(rs2[i],tl); |
1790 | emit_not(tl,tl); |
1791 | } |
1792 | } |
1793 | else emit_movimm(-1,tl); |
1794 | } |
1795 | } |
1796 | } |
1797 | } |
1798 | } |
1799 | } |
1800 | } |
1801 | |
1802 | void imm16_assemble(int i,struct regstat *i_regs) |
1803 | { |
1804 | if (opcode[i]==0x0f) { // LUI |
1805 | if(rt1[i]) { |
1806 | signed char t; |
1807 | t=get_reg(i_regs->regmap,rt1[i]); |
1808 | //assert(t>=0); |
1809 | if(t>=0) { |
1810 | if(!((i_regs->isconst>>t)&1)) |
1811 | emit_movimm(imm[i]<<16,t); |
1812 | } |
1813 | } |
1814 | } |
1815 | if(opcode[i]==0x08||opcode[i]==0x09) { // ADDI/ADDIU |
1816 | if(rt1[i]) { |
1817 | signed char s,t; |
1818 | t=get_reg(i_regs->regmap,rt1[i]); |
1819 | s=get_reg(i_regs->regmap,rs1[i]); |
1820 | if(rs1[i]) { |
1821 | //assert(t>=0); |
1822 | //assert(s>=0); |
1823 | if(t>=0) { |
1824 | if(!((i_regs->isconst>>t)&1)) { |
1825 | if(s<0) { |
1826 | if(i_regs->regmap_entry[t]!=rs1[i]) emit_loadreg(rs1[i],t); |
1827 | emit_addimm(t,imm[i],t); |
1828 | }else{ |
1829 | if(!((i_regs->wasconst>>s)&1)) |
1830 | emit_addimm(s,imm[i],t); |
1831 | else |
1832 | emit_movimm(constmap[i][s]+imm[i],t); |
1833 | } |
1834 | } |
1835 | } |
1836 | } else { |
1837 | if(t>=0) { |
1838 | if(!((i_regs->isconst>>t)&1)) |
1839 | emit_movimm(imm[i],t); |
1840 | } |
1841 | } |
1842 | } |
1843 | } |
1844 | if(opcode[i]==0x18||opcode[i]==0x19) { // DADDI/DADDIU |
1845 | if(rt1[i]) { |
1846 | signed char sh,sl,th,tl; |
1847 | th=get_reg(i_regs->regmap,rt1[i]|64); |
1848 | tl=get_reg(i_regs->regmap,rt1[i]); |
1849 | sh=get_reg(i_regs->regmap,rs1[i]|64); |
1850 | sl=get_reg(i_regs->regmap,rs1[i]); |
1851 | if(tl>=0) { |
1852 | if(rs1[i]) { |
1853 | assert(sh>=0); |
1854 | assert(sl>=0); |
1855 | if(th>=0) { |
1856 | emit_addimm64_32(sh,sl,imm[i],th,tl); |
1857 | } |
1858 | else { |
1859 | emit_addimm(sl,imm[i],tl); |
1860 | } |
1861 | } else { |
1862 | emit_movimm(imm[i],tl); |
1863 | if(th>=0) emit_movimm(((signed int)imm[i])>>31,th); |
1864 | } |
1865 | } |
1866 | } |
1867 | } |
1868 | else if(opcode[i]==0x0a||opcode[i]==0x0b) { // SLTI/SLTIU |
1869 | if(rt1[i]) { |
1870 | //assert(rs1[i]!=0); // r0 might be valid, but it's probably a bug |
ad49de89 |
1871 | signed char sl,t; |
57871462 |
1872 | t=get_reg(i_regs->regmap,rt1[i]); |
57871462 |
1873 | sl=get_reg(i_regs->regmap,rs1[i]); |
1874 | //assert(t>=0); |
1875 | if(t>=0) { |
1876 | if(rs1[i]>0) { |
57871462 |
1877 | if(opcode[i]==0x0a) { // SLTI |
1878 | if(sl<0) { |
1879 | if(i_regs->regmap_entry[t]!=rs1[i]) emit_loadreg(rs1[i],t); |
1880 | emit_slti32(t,imm[i],t); |
1881 | }else{ |
1882 | emit_slti32(sl,imm[i],t); |
1883 | } |
1884 | } |
1885 | else { // SLTIU |
1886 | if(sl<0) { |
1887 | if(i_regs->regmap_entry[t]!=rs1[i]) emit_loadreg(rs1[i],t); |
1888 | emit_sltiu32(t,imm[i],t); |
1889 | }else{ |
1890 | emit_sltiu32(sl,imm[i],t); |
1891 | } |
1892 | } |
57871462 |
1893 | }else{ |
1894 | // SLTI(U) with r0 is just stupid, |
1895 | // nonetheless examples can be found |
1896 | if(opcode[i]==0x0a) // SLTI |
1897 | if(0<imm[i]) emit_movimm(1,t); |
1898 | else emit_zeroreg(t); |
1899 | else // SLTIU |
1900 | { |
1901 | if(imm[i]) emit_movimm(1,t); |
1902 | else emit_zeroreg(t); |
1903 | } |
1904 | } |
1905 | } |
1906 | } |
1907 | } |
1908 | else if(opcode[i]>=0x0c&&opcode[i]<=0x0e) { // ANDI/ORI/XORI |
1909 | if(rt1[i]) { |
1910 | signed char sh,sl,th,tl; |
1911 | th=get_reg(i_regs->regmap,rt1[i]|64); |
1912 | tl=get_reg(i_regs->regmap,rt1[i]); |
1913 | sh=get_reg(i_regs->regmap,rs1[i]|64); |
1914 | sl=get_reg(i_regs->regmap,rs1[i]); |
1915 | if(tl>=0 && !((i_regs->isconst>>tl)&1)) { |
1916 | if(opcode[i]==0x0c) //ANDI |
1917 | { |
1918 | if(rs1[i]) { |
1919 | if(sl<0) { |
1920 | if(i_regs->regmap_entry[tl]!=rs1[i]) emit_loadreg(rs1[i],tl); |
1921 | emit_andimm(tl,imm[i],tl); |
1922 | }else{ |
1923 | if(!((i_regs->wasconst>>sl)&1)) |
1924 | emit_andimm(sl,imm[i],tl); |
1925 | else |
1926 | emit_movimm(constmap[i][sl]&imm[i],tl); |
1927 | } |
1928 | } |
1929 | else |
1930 | emit_zeroreg(tl); |
1931 | if(th>=0) emit_zeroreg(th); |
1932 | } |
1933 | else |
1934 | { |
1935 | if(rs1[i]) { |
1936 | if(sl<0) { |
1937 | if(i_regs->regmap_entry[tl]!=rs1[i]) emit_loadreg(rs1[i],tl); |
1938 | } |
1939 | if(th>=0) { |
1940 | if(sh<0) { |
1941 | emit_loadreg(rs1[i]|64,th); |
1942 | }else{ |
1943 | emit_mov(sh,th); |
1944 | } |
1945 | } |
581335b0 |
1946 | if(opcode[i]==0x0d) { // ORI |
1947 | if(sl<0) { |
1948 | emit_orimm(tl,imm[i],tl); |
1949 | }else{ |
1950 | if(!((i_regs->wasconst>>sl)&1)) |
1951 | emit_orimm(sl,imm[i],tl); |
1952 | else |
1953 | emit_movimm(constmap[i][sl]|imm[i],tl); |
1954 | } |
57871462 |
1955 | } |
581335b0 |
1956 | if(opcode[i]==0x0e) { // XORI |
1957 | if(sl<0) { |
1958 | emit_xorimm(tl,imm[i],tl); |
1959 | }else{ |
1960 | if(!((i_regs->wasconst>>sl)&1)) |
1961 | emit_xorimm(sl,imm[i],tl); |
1962 | else |
1963 | emit_movimm(constmap[i][sl]^imm[i],tl); |
1964 | } |
57871462 |
1965 | } |
1966 | } |
1967 | else { |
1968 | emit_movimm(imm[i],tl); |
1969 | if(th>=0) emit_zeroreg(th); |
1970 | } |
1971 | } |
1972 | } |
1973 | } |
1974 | } |
1975 | } |
1976 | |
1977 | void shiftimm_assemble(int i,struct regstat *i_regs) |
1978 | { |
1979 | if(opcode2[i]<=0x3) // SLL/SRL/SRA |
1980 | { |
1981 | if(rt1[i]) { |
1982 | signed char s,t; |
1983 | t=get_reg(i_regs->regmap,rt1[i]); |
1984 | s=get_reg(i_regs->regmap,rs1[i]); |
1985 | //assert(t>=0); |
dc49e339 |
1986 | if(t>=0&&!((i_regs->isconst>>t)&1)){ |
57871462 |
1987 | if(rs1[i]==0) |
1988 | { |
1989 | emit_zeroreg(t); |
1990 | } |
1991 | else |
1992 | { |
1993 | if(s<0&&i_regs->regmap_entry[t]!=rs1[i]) emit_loadreg(rs1[i],t); |
1994 | if(imm[i]) { |
1995 | if(opcode2[i]==0) // SLL |
1996 | { |
1997 | emit_shlimm(s<0?t:s,imm[i],t); |
1998 | } |
1999 | if(opcode2[i]==2) // SRL |
2000 | { |
2001 | emit_shrimm(s<0?t:s,imm[i],t); |
2002 | } |
2003 | if(opcode2[i]==3) // SRA |
2004 | { |
2005 | emit_sarimm(s<0?t:s,imm[i],t); |
2006 | } |
2007 | }else{ |
2008 | // Shift by zero |
2009 | if(s>=0 && s!=t) emit_mov(s,t); |
2010 | } |
2011 | } |
2012 | } |
2013 | //emit_storereg(rt1[i],t); //DEBUG |
2014 | } |
2015 | } |
2016 | if(opcode2[i]>=0x38&&opcode2[i]<=0x3b) // DSLL/DSRL/DSRA |
2017 | { |
9c45ca93 |
2018 | assert(0); |
57871462 |
2019 | } |
2020 | if(opcode2[i]==0x3c) // DSLL32 |
2021 | { |
9c45ca93 |
2022 | assert(0); |
57871462 |
2023 | } |
2024 | if(opcode2[i]==0x3e) // DSRL32 |
2025 | { |
9c45ca93 |
2026 | assert(0); |
57871462 |
2027 | } |
2028 | if(opcode2[i]==0x3f) // DSRA32 |
2029 | { |
9c45ca93 |
2030 | assert(0); |
57871462 |
2031 | } |
2032 | } |
2033 | |
2034 | #ifndef shift_assemble |
2035 | void shift_assemble(int i,struct regstat *i_regs) |
2036 | { |
2037 | printf("Need shift_assemble for this architecture.\n"); |
2038 | exit(1); |
2039 | } |
2040 | #endif |
2041 | |
2042 | void load_assemble(int i,struct regstat *i_regs) |
2043 | { |
9c45ca93 |
2044 | int s,th,tl,addr; |
57871462 |
2045 | int offset; |
b14b6a8f |
2046 | void *jaddr=0; |
5bf843dc |
2047 | int memtarget=0,c=0; |
b1570849 |
2048 | int fastload_reg_override=0; |
57871462 |
2049 | u_int hr,reglist=0; |
2050 | th=get_reg(i_regs->regmap,rt1[i]|64); |
2051 | tl=get_reg(i_regs->regmap,rt1[i]); |
2052 | s=get_reg(i_regs->regmap,rs1[i]); |
2053 | offset=imm[i]; |
2054 | for(hr=0;hr<HOST_REGS;hr++) { |
2055 | if(i_regs->regmap[hr]>=0) reglist|=1<<hr; |
2056 | } |
2057 | if(i_regs->regmap[HOST_CCREG]==CCREG) reglist&=~(1<<HOST_CCREG); |
2058 | if(s>=0) { |
2059 | c=(i_regs->wasconst>>s)&1; |
af4ee1fe |
2060 | if (c) { |
2061 | memtarget=((signed int)(constmap[i][s]+offset))<(signed int)0x80000000+RAM_SIZE; |
af4ee1fe |
2062 | } |
57871462 |
2063 | } |
57871462 |
2064 | //printf("load_assemble: c=%d\n",c); |
643aeae3 |
2065 | //if(c) printf("load_assemble: const=%lx\n",(long)constmap[i][s]+offset); |
57871462 |
2066 | // FIXME: Even if the load is a NOP, we should check for pagefaults... |
581335b0 |
2067 | if((tl<0&&(!c||(((u_int)constmap[i][s]+offset)>>16)==0x1f80)) |
f18c0f46 |
2068 | ||rt1[i]==0) { |
5bf843dc |
2069 | // could be FIFO, must perform the read |
f18c0f46 |
2070 | // ||dummy read |
5bf843dc |
2071 | assem_debug("(forced read)\n"); |
2072 | tl=get_reg(i_regs->regmap,-1); |
2073 | assert(tl>=0); |
5bf843dc |
2074 | } |
2075 | if(offset||s<0||c) addr=tl; |
2076 | else addr=s; |
535d208a |
2077 | //if(tl<0) tl=get_reg(i_regs->regmap,-1); |
2078 | if(tl>=0) { |
2079 | //printf("load_assemble: c=%d\n",c); |
643aeae3 |
2080 | //if(c) printf("load_assemble: const=%lx\n",(long)constmap[i][s]+offset); |
535d208a |
2081 | assert(tl>=0); // Even if the load is a NOP, we must check for pagefaults and I/O |
2082 | reglist&=~(1<<tl); |
2083 | if(th>=0) reglist&=~(1<<th); |
1edfcc68 |
2084 | if(!c) { |
1edfcc68 |
2085 | #ifdef R29_HACK |
2086 | // Strmnnrmn's speed hack |
2087 | if(rs1[i]!=29||start<0x80001000||start>=0x80000000+RAM_SIZE) |
2088 | #endif |
2089 | { |
2090 | jaddr=emit_fastpath_cmp_jump(i,addr,&fastload_reg_override); |
535d208a |
2091 | } |
1edfcc68 |
2092 | } |
2093 | else if(ram_offset&&memtarget) { |
2094 | emit_addimm(addr,ram_offset,HOST_TEMPREG); |
2095 | fastload_reg_override=HOST_TEMPREG; |
535d208a |
2096 | } |
2097 | int dummy=(rt1[i]==0)||(tl!=get_reg(i_regs->regmap,rt1[i])); // ignore loads to r0 and unneeded reg |
2098 | if (opcode[i]==0x20) { // LB |
2099 | if(!c||memtarget) { |
2100 | if(!dummy) { |
57871462 |
2101 | { |
535d208a |
2102 | int x=0,a=tl; |
535d208a |
2103 | if(!c) a=addr; |
b1570849 |
2104 | if(fastload_reg_override) a=fastload_reg_override; |
2105 | |
9c45ca93 |
2106 | emit_movsbl_indexed(x,a,tl); |
57871462 |
2107 | } |
57871462 |
2108 | } |
535d208a |
2109 | if(jaddr) |
b14b6a8f |
2110 | add_stub_r(LOADB_STUB,jaddr,out,i,addr,i_regs,ccadj[i],reglist); |
57871462 |
2111 | } |
535d208a |
2112 | else |
2113 | inline_readstub(LOADB_STUB,i,constmap[i][s]+offset,i_regs->regmap,rt1[i],ccadj[i],reglist); |
2114 | } |
2115 | if (opcode[i]==0x21) { // LH |
2116 | if(!c||memtarget) { |
2117 | if(!dummy) { |
9c45ca93 |
2118 | int x=0,a=tl; |
2119 | if(!c) a=addr; |
2120 | if(fastload_reg_override) a=fastload_reg_override; |
2121 | emit_movswl_indexed(x,a,tl); |
57871462 |
2122 | } |
535d208a |
2123 | if(jaddr) |
b14b6a8f |
2124 | add_stub_r(LOADH_STUB,jaddr,out,i,addr,i_regs,ccadj[i],reglist); |
57871462 |
2125 | } |
535d208a |
2126 | else |
2127 | inline_readstub(LOADH_STUB,i,constmap[i][s]+offset,i_regs->regmap,rt1[i],ccadj[i],reglist); |
2128 | } |
2129 | if (opcode[i]==0x23) { // LW |
2130 | if(!c||memtarget) { |
2131 | if(!dummy) { |
dadf55f2 |
2132 | int a=addr; |
b1570849 |
2133 | if(fastload_reg_override) a=fastload_reg_override; |
9c45ca93 |
2134 | emit_readword_indexed(0,a,tl); |
57871462 |
2135 | } |
535d208a |
2136 | if(jaddr) |
b14b6a8f |
2137 | add_stub_r(LOADW_STUB,jaddr,out,i,addr,i_regs,ccadj[i],reglist); |
57871462 |
2138 | } |
535d208a |
2139 | else |
2140 | inline_readstub(LOADW_STUB,i,constmap[i][s]+offset,i_regs->regmap,rt1[i],ccadj[i],reglist); |
2141 | } |
2142 | if (opcode[i]==0x24) { // LBU |
2143 | if(!c||memtarget) { |
2144 | if(!dummy) { |
9c45ca93 |
2145 | int x=0,a=tl; |
2146 | if(!c) a=addr; |
2147 | if(fastload_reg_override) a=fastload_reg_override; |
b1570849 |
2148 | |
9c45ca93 |
2149 | emit_movzbl_indexed(x,a,tl); |
57871462 |
2150 | } |
535d208a |
2151 | if(jaddr) |
b14b6a8f |
2152 | add_stub_r(LOADBU_STUB,jaddr,out,i,addr,i_regs,ccadj[i],reglist); |
57871462 |
2153 | } |
535d208a |
2154 | else |
2155 | inline_readstub(LOADBU_STUB,i,constmap[i][s]+offset,i_regs->regmap,rt1[i],ccadj[i],reglist); |
2156 | } |
2157 | if (opcode[i]==0x25) { // LHU |
2158 | if(!c||memtarget) { |
2159 | if(!dummy) { |
9c45ca93 |
2160 | int x=0,a=tl; |
2161 | if(!c) a=addr; |
2162 | if(fastload_reg_override) a=fastload_reg_override; |
2163 | emit_movzwl_indexed(x,a,tl); |
57871462 |
2164 | } |
535d208a |
2165 | if(jaddr) |
b14b6a8f |
2166 | add_stub_r(LOADHU_STUB,jaddr,out,i,addr,i_regs,ccadj[i],reglist); |
57871462 |
2167 | } |
535d208a |
2168 | else |
2169 | inline_readstub(LOADHU_STUB,i,constmap[i][s]+offset,i_regs->regmap,rt1[i],ccadj[i],reglist); |
2170 | } |
2171 | if (opcode[i]==0x27) { // LWU |
2172 | assert(th>=0); |
2173 | if(!c||memtarget) { |
2174 | if(!dummy) { |
dadf55f2 |
2175 | int a=addr; |
b1570849 |
2176 | if(fastload_reg_override) a=fastload_reg_override; |
9c45ca93 |
2177 | emit_readword_indexed(0,a,tl); |
57871462 |
2178 | } |
535d208a |
2179 | if(jaddr) |
b14b6a8f |
2180 | add_stub_r(LOADW_STUB,jaddr,out,i,addr,i_regs,ccadj[i],reglist); |
535d208a |
2181 | } |
2182 | else { |
2183 | inline_readstub(LOADW_STUB,i,constmap[i][s]+offset,i_regs->regmap,rt1[i],ccadj[i],reglist); |
57871462 |
2184 | } |
535d208a |
2185 | emit_zeroreg(th); |
2186 | } |
2187 | if (opcode[i]==0x37) { // LD |
9c45ca93 |
2188 | assert(0); |
57871462 |
2189 | } |
535d208a |
2190 | } |
57871462 |
2191 | } |
2192 | |
2193 | #ifndef loadlr_assemble |
2194 | void loadlr_assemble(int i,struct regstat *i_regs) |
2195 | { |
2196 | printf("Need loadlr_assemble for this architecture.\n"); |
2197 | exit(1); |
2198 | } |
2199 | #endif |
2200 | |
2201 | void store_assemble(int i,struct regstat *i_regs) |
2202 | { |
9c45ca93 |
2203 | int s,tl; |
57871462 |
2204 | int addr,temp; |
2205 | int offset; |
b14b6a8f |
2206 | void *jaddr=0; |
2207 | enum stub_type type; |
666a299d |
2208 | int memtarget=0,c=0; |
57871462 |
2209 | int agr=AGEN1+(i&1); |
b1570849 |
2210 | int faststore_reg_override=0; |
57871462 |
2211 | u_int hr,reglist=0; |
57871462 |
2212 | tl=get_reg(i_regs->regmap,rs2[i]); |
2213 | s=get_reg(i_regs->regmap,rs1[i]); |
2214 | temp=get_reg(i_regs->regmap,agr); |
2215 | if(temp<0) temp=get_reg(i_regs->regmap,-1); |
2216 | offset=imm[i]; |
2217 | if(s>=0) { |
2218 | c=(i_regs->wasconst>>s)&1; |
af4ee1fe |
2219 | if(c) { |
2220 | memtarget=((signed int)(constmap[i][s]+offset))<(signed int)0x80000000+RAM_SIZE; |
af4ee1fe |
2221 | } |
57871462 |
2222 | } |
2223 | assert(tl>=0); |
2224 | assert(temp>=0); |
2225 | for(hr=0;hr<HOST_REGS;hr++) { |
2226 | if(i_regs->regmap[hr]>=0) reglist|=1<<hr; |
2227 | } |
2228 | if(i_regs->regmap[HOST_CCREG]==CCREG) reglist&=~(1<<HOST_CCREG); |
2229 | if(offset||s<0||c) addr=temp; |
2230 | else addr=s; |
1edfcc68 |
2231 | if(!c) { |
2232 | jaddr=emit_fastpath_cmp_jump(i,addr,&faststore_reg_override); |
2233 | } |
2234 | else if(ram_offset&&memtarget) { |
2235 | emit_addimm(addr,ram_offset,HOST_TEMPREG); |
2236 | faststore_reg_override=HOST_TEMPREG; |
57871462 |
2237 | } |
2238 | |
2239 | if (opcode[i]==0x28) { // SB |
2240 | if(!c||memtarget) { |
97a238a6 |
2241 | int x=0,a=temp; |
97a238a6 |
2242 | if(!c) a=addr; |
b1570849 |
2243 | if(faststore_reg_override) a=faststore_reg_override; |
9c45ca93 |
2244 | emit_writebyte_indexed(tl,x,a); |
57871462 |
2245 | } |
2246 | type=STOREB_STUB; |
2247 | } |
2248 | if (opcode[i]==0x29) { // SH |
2249 | if(!c||memtarget) { |
97a238a6 |
2250 | int x=0,a=temp; |
97a238a6 |
2251 | if(!c) a=addr; |
b1570849 |
2252 | if(faststore_reg_override) a=faststore_reg_override; |
9c45ca93 |
2253 | emit_writehword_indexed(tl,x,a); |
57871462 |
2254 | } |
2255 | type=STOREH_STUB; |
2256 | } |
2257 | if (opcode[i]==0x2B) { // SW |
dadf55f2 |
2258 | if(!c||memtarget) { |
2259 | int a=addr; |
b1570849 |
2260 | if(faststore_reg_override) a=faststore_reg_override; |
9c45ca93 |
2261 | emit_writeword_indexed(tl,0,a); |
dadf55f2 |
2262 | } |
57871462 |
2263 | type=STOREW_STUB; |
2264 | } |
2265 | if (opcode[i]==0x3F) { // SD |
9c45ca93 |
2266 | assert(0); |
57871462 |
2267 | type=STORED_STUB; |
2268 | } |
b96d3df7 |
2269 | if(jaddr) { |
2270 | // PCSX store handlers don't check invcode again |
2271 | reglist|=1<<addr; |
b14b6a8f |
2272 | add_stub_r(type,jaddr,out,i,addr,i_regs,ccadj[i],reglist); |
b96d3df7 |
2273 | jaddr=0; |
2274 | } |
1edfcc68 |
2275 | if(!(i_regs->waswritten&(1<<rs1[i]))&&!(new_dynarec_hacks&NDHACK_NO_SMC_CHECK)) { |
57871462 |
2276 | if(!c||memtarget) { |
2277 | #ifdef DESTRUCTIVE_SHIFT |
2278 | // The x86 shift operation is 'destructive'; it overwrites the |
2279 | // source register, so we need to make a copy first and use that. |
2280 | addr=temp; |
2281 | #endif |
2282 | #if defined(HOST_IMM8) |
2283 | int ir=get_reg(i_regs->regmap,INVCP); |
2284 | assert(ir>=0); |
2285 | emit_cmpmem_indexedsr12_reg(ir,addr,1); |
2286 | #else |
643aeae3 |
2287 | emit_cmpmem_indexedsr12_imm(invalid_code,addr,1); |
57871462 |
2288 | #endif |
0bbd1454 |
2289 | #if defined(HAVE_CONDITIONAL_CALL) && !defined(DESTRUCTIVE_SHIFT) |
2290 | emit_callne(invalidate_addr_reg[addr]); |
2291 | #else |
b14b6a8f |
2292 | void *jaddr2 = out; |
57871462 |
2293 | emit_jne(0); |
b14b6a8f |
2294 | add_stub(INVCODE_STUB,jaddr2,out,reglist|(1<<HOST_CCREG),addr,0,0,0); |
0bbd1454 |
2295 | #endif |
57871462 |
2296 | } |
2297 | } |
7a518516 |
2298 | u_int addr_val=constmap[i][s]+offset; |
3eaa7048 |
2299 | if(jaddr) { |
b14b6a8f |
2300 | add_stub_r(type,jaddr,out,i,addr,i_regs,ccadj[i],reglist); |
3eaa7048 |
2301 | } else if(c&&!memtarget) { |
7a518516 |
2302 | inline_writestub(type,i,addr_val,i_regs->regmap,rs2[i],ccadj[i],reglist); |
2303 | } |
2304 | // basic current block modification detection.. |
2305 | // not looking back as that should be in mips cache already |
2306 | if(c&&start+i*4<addr_val&&addr_val<start+slen*4) { |
c43b5311 |
2307 | SysPrintf("write to %08x hits block %08x, pc=%08x\n",addr_val,start,start+i*4); |
7a518516 |
2308 | assert(i_regs->regmap==regs[i].regmap); // not delay slot |
2309 | if(i_regs->regmap==regs[i].regmap) { |
ad49de89 |
2310 | load_all_consts(regs[i].regmap_entry,regs[i].wasdirty,i); |
2311 | wb_dirtys(regs[i].regmap_entry,regs[i].wasdirty); |
7a518516 |
2312 | emit_movimm(start+i*4+4,0); |
643aeae3 |
2313 | emit_writeword(0,&pcaddr); |
b14b6a8f |
2314 | emit_jmp(do_interrupt); |
7a518516 |
2315 | } |
3eaa7048 |
2316 | } |
57871462 |
2317 | } |
2318 | |
2319 | void storelr_assemble(int i,struct regstat *i_regs) |
2320 | { |
9c45ca93 |
2321 | int s,tl; |
57871462 |
2322 | int temp; |
57871462 |
2323 | int offset; |
b14b6a8f |
2324 | void *jaddr=0; |
df4dc2b1 |
2325 | void *case1, *case2, *case3; |
2326 | void *done0, *done1, *done2; |
af4ee1fe |
2327 | int memtarget=0,c=0; |
fab5d06d |
2328 | int agr=AGEN1+(i&1); |
57871462 |
2329 | u_int hr,reglist=0; |
57871462 |
2330 | tl=get_reg(i_regs->regmap,rs2[i]); |
2331 | s=get_reg(i_regs->regmap,rs1[i]); |
fab5d06d |
2332 | temp=get_reg(i_regs->regmap,agr); |
2333 | if(temp<0) temp=get_reg(i_regs->regmap,-1); |
57871462 |
2334 | offset=imm[i]; |
2335 | if(s>=0) { |
2336 | c=(i_regs->isconst>>s)&1; |
af4ee1fe |
2337 | if(c) { |
2338 | memtarget=((signed int)(constmap[i][s]+offset))<(signed int)0x80000000+RAM_SIZE; |
af4ee1fe |
2339 | } |
57871462 |
2340 | } |
2341 | assert(tl>=0); |
2342 | for(hr=0;hr<HOST_REGS;hr++) { |
2343 | if(i_regs->regmap[hr]>=0) reglist|=1<<hr; |
2344 | } |
535d208a |
2345 | assert(temp>=0); |
1edfcc68 |
2346 | if(!c) { |
2347 | emit_cmpimm(s<0||offset?temp:s,RAM_SIZE); |
2348 | if(!offset&&s!=temp) emit_mov(s,temp); |
b14b6a8f |
2349 | jaddr=out; |
1edfcc68 |
2350 | emit_jno(0); |
2351 | } |
2352 | else |
2353 | { |
2354 | if(!memtarget||!rs1[i]) { |
b14b6a8f |
2355 | jaddr=out; |
535d208a |
2356 | emit_jmp(0); |
57871462 |
2357 | } |
535d208a |
2358 | } |
9c45ca93 |
2359 | emit_addimm_no_flags(ram_offset,temp); |
535d208a |
2360 | |
2361 | if (opcode[i]==0x2C||opcode[i]==0x2D) { // SDL/SDR |
9c45ca93 |
2362 | assert(0); |
535d208a |
2363 | } |
57871462 |
2364 | |
9c45ca93 |
2365 | emit_xorimm(temp,3,temp); |
535d208a |
2366 | emit_testimm(temp,2); |
df4dc2b1 |
2367 | case2=out; |
535d208a |
2368 | emit_jne(0); |
2369 | emit_testimm(temp,1); |
df4dc2b1 |
2370 | case1=out; |
535d208a |
2371 | emit_jne(0); |
2372 | // 0 |
2373 | if (opcode[i]==0x2A) { // SWL |
2374 | emit_writeword_indexed(tl,0,temp); |
2375 | } |
2376 | if (opcode[i]==0x2E) { // SWR |
2377 | emit_writebyte_indexed(tl,3,temp); |
2378 | } |
2379 | if (opcode[i]==0x2C) { // SDL |
9c45ca93 |
2380 | assert(0); |
535d208a |
2381 | } |
2382 | if (opcode[i]==0x2D) { // SDR |
9c45ca93 |
2383 | assert(0); |
535d208a |
2384 | } |
df4dc2b1 |
2385 | done0=out; |
535d208a |
2386 | emit_jmp(0); |
2387 | // 1 |
df4dc2b1 |
2388 | set_jump_target(case1, out); |
535d208a |
2389 | if (opcode[i]==0x2A) { // SWL |
2390 | // Write 3 msb into three least significant bytes |
2391 | if(rs2[i]) emit_rorimm(tl,8,tl); |
2392 | emit_writehword_indexed(tl,-1,temp); |
2393 | if(rs2[i]) emit_rorimm(tl,16,tl); |
2394 | emit_writebyte_indexed(tl,1,temp); |
2395 | if(rs2[i]) emit_rorimm(tl,8,tl); |
2396 | } |
2397 | if (opcode[i]==0x2E) { // SWR |
2398 | // Write two lsb into two most significant bytes |
2399 | emit_writehword_indexed(tl,1,temp); |
2400 | } |
2401 | if (opcode[i]==0x2C) { // SDL |
9c45ca93 |
2402 | assert(0); |
535d208a |
2403 | } |
2404 | if (opcode[i]==0x2D) { // SDR |
9c45ca93 |
2405 | assert(0); |
535d208a |
2406 | } |
df4dc2b1 |
2407 | done1=out; |
535d208a |
2408 | emit_jmp(0); |
2409 | // 2 |
df4dc2b1 |
2410 | set_jump_target(case2, out); |
535d208a |
2411 | emit_testimm(temp,1); |
df4dc2b1 |
2412 | case3=out; |
535d208a |
2413 | emit_jne(0); |
2414 | if (opcode[i]==0x2A) { // SWL |
2415 | // Write two msb into two least significant bytes |
2416 | if(rs2[i]) emit_rorimm(tl,16,tl); |
2417 | emit_writehword_indexed(tl,-2,temp); |
2418 | if(rs2[i]) emit_rorimm(tl,16,tl); |
2419 | } |
2420 | if (opcode[i]==0x2E) { // SWR |
2421 | // Write 3 lsb into three most significant bytes |
2422 | emit_writebyte_indexed(tl,-1,temp); |
2423 | if(rs2[i]) emit_rorimm(tl,8,tl); |
2424 | emit_writehword_indexed(tl,0,temp); |
2425 | if(rs2[i]) emit_rorimm(tl,24,tl); |
2426 | } |
2427 | if (opcode[i]==0x2C) { // SDL |
9c45ca93 |
2428 | assert(0); |
535d208a |
2429 | } |
2430 | if (opcode[i]==0x2D) { // SDR |
9c45ca93 |
2431 | assert(0); |
535d208a |
2432 | } |
df4dc2b1 |
2433 | done2=out; |
535d208a |
2434 | emit_jmp(0); |
2435 | // 3 |
df4dc2b1 |
2436 | set_jump_target(case3, out); |
535d208a |
2437 | if (opcode[i]==0x2A) { // SWL |
2438 | // Write msb into least significant byte |
2439 | if(rs2[i]) emit_rorimm(tl,24,tl); |
2440 | emit_writebyte_indexed(tl,-3,temp); |
2441 | if(rs2[i]) emit_rorimm(tl,8,tl); |
2442 | } |
2443 | if (opcode[i]==0x2E) { // SWR |
2444 | // Write entire word |
2445 | emit_writeword_indexed(tl,-3,temp); |
2446 | } |
2447 | if (opcode[i]==0x2C) { // SDL |
9c45ca93 |
2448 | assert(0); |
535d208a |
2449 | } |
2450 | if (opcode[i]==0x2D) { // SDR |
9c45ca93 |
2451 | assert(0); |
535d208a |
2452 | } |
df4dc2b1 |
2453 | set_jump_target(done0, out); |
2454 | set_jump_target(done1, out); |
2455 | set_jump_target(done2, out); |
535d208a |
2456 | if (opcode[i]==0x2C) { // SDL |
9c45ca93 |
2457 | assert(0); |
535d208a |
2458 | } |
2459 | if (opcode[i]==0x2D) { // SDR |
9c45ca93 |
2460 | assert(0); |
57871462 |
2461 | } |
535d208a |
2462 | if(!c||!memtarget) |
b14b6a8f |
2463 | add_stub_r(STORELR_STUB,jaddr,out,i,temp,i_regs,ccadj[i],reglist); |
1edfcc68 |
2464 | if(!(i_regs->waswritten&(1<<rs1[i]))&&!(new_dynarec_hacks&NDHACK_NO_SMC_CHECK)) { |
9c45ca93 |
2465 | emit_addimm_no_flags(-ram_offset,temp); |
57871462 |
2466 | #if defined(HOST_IMM8) |
2467 | int ir=get_reg(i_regs->regmap,INVCP); |
2468 | assert(ir>=0); |
2469 | emit_cmpmem_indexedsr12_reg(ir,temp,1); |
2470 | #else |
643aeae3 |
2471 | emit_cmpmem_indexedsr12_imm(invalid_code,temp,1); |
57871462 |
2472 | #endif |
535d208a |
2473 | #if defined(HAVE_CONDITIONAL_CALL) && !defined(DESTRUCTIVE_SHIFT) |
2474 | emit_callne(invalidate_addr_reg[temp]); |
2475 | #else |
b14b6a8f |
2476 | void *jaddr2 = out; |
57871462 |
2477 | emit_jne(0); |
b14b6a8f |
2478 | add_stub(INVCODE_STUB,jaddr2,out,reglist|(1<<HOST_CCREG),temp,0,0,0); |
535d208a |
2479 | #endif |
57871462 |
2480 | } |
57871462 |
2481 | } |
2482 | |
2483 | void c1ls_assemble(int i,struct regstat *i_regs) |
2484 | { |
3d624f89 |
2485 | cop1_unusable(i, i_regs); |
57871462 |
2486 | } |
2487 | |
b9b61529 |
2488 | void c2ls_assemble(int i,struct regstat *i_regs) |
2489 | { |
2490 | int s,tl; |
2491 | int ar; |
2492 | int offset; |
1fd1aceb |
2493 | int memtarget=0,c=0; |
b14b6a8f |
2494 | void *jaddr2=NULL; |
2495 | enum stub_type type; |
b9b61529 |
2496 | int agr=AGEN1+(i&1); |
ffb0b9e0 |
2497 | int fastio_reg_override=0; |
b9b61529 |
2498 | u_int hr,reglist=0; |
2499 | u_int copr=(source[i]>>16)&0x1f; |
2500 | s=get_reg(i_regs->regmap,rs1[i]); |
2501 | tl=get_reg(i_regs->regmap,FTEMP); |
2502 | offset=imm[i]; |
2503 | assert(rs1[i]>0); |
2504 | assert(tl>=0); |
b9b61529 |
2505 | |
2506 | for(hr=0;hr<HOST_REGS;hr++) { |
2507 | if(i_regs->regmap[hr]>=0) reglist|=1<<hr; |
2508 | } |
2509 | if(i_regs->regmap[HOST_CCREG]==CCREG) |
2510 | reglist&=~(1<<HOST_CCREG); |
2511 | |
2512 | // get the address |
2513 | if (opcode[i]==0x3a) { // SWC2 |
2514 | ar=get_reg(i_regs->regmap,agr); |
2515 | if(ar<0) ar=get_reg(i_regs->regmap,-1); |
2516 | reglist|=1<<ar; |
2517 | } else { // LWC2 |
2518 | ar=tl; |
2519 | } |
1fd1aceb |
2520 | if(s>=0) c=(i_regs->wasconst>>s)&1; |
2521 | memtarget=c&&(((signed int)(constmap[i][s]+offset))<(signed int)0x80000000+RAM_SIZE); |
b9b61529 |
2522 | if (!offset&&!c&&s>=0) ar=s; |
2523 | assert(ar>=0); |
2524 | |
2525 | if (opcode[i]==0x3a) { // SWC2 |
2526 | cop2_get_dreg(copr,tl,HOST_TEMPREG); |
1fd1aceb |
2527 | type=STOREW_STUB; |
b9b61529 |
2528 | } |
1fd1aceb |
2529 | else |
b9b61529 |
2530 | type=LOADW_STUB; |
1fd1aceb |
2531 | |
2532 | if(c&&!memtarget) { |
b14b6a8f |
2533 | jaddr2=out; |
1fd1aceb |
2534 | emit_jmp(0); // inline_readstub/inline_writestub? |
b9b61529 |
2535 | } |
1fd1aceb |
2536 | else { |
2537 | if(!c) { |
ffb0b9e0 |
2538 | jaddr2=emit_fastpath_cmp_jump(i,ar,&fastio_reg_override); |
1fd1aceb |
2539 | } |
a327ad27 |
2540 | else if(ram_offset&&memtarget) { |
2541 | emit_addimm(ar,ram_offset,HOST_TEMPREG); |
2542 | fastio_reg_override=HOST_TEMPREG; |
2543 | } |
1fd1aceb |
2544 | if (opcode[i]==0x32) { // LWC2 |
ffb0b9e0 |
2545 | int a=ar; |
2546 | if(fastio_reg_override) a=fastio_reg_override; |
2547 | emit_readword_indexed(0,a,tl); |
1fd1aceb |
2548 | } |
2549 | if (opcode[i]==0x3a) { // SWC2 |
2550 | #ifdef DESTRUCTIVE_SHIFT |
2551 | if(!offset&&!c&&s>=0) emit_mov(s,ar); |
2552 | #endif |
ffb0b9e0 |
2553 | int a=ar; |
2554 | if(fastio_reg_override) a=fastio_reg_override; |
2555 | emit_writeword_indexed(tl,0,a); |
1fd1aceb |
2556 | } |
b9b61529 |
2557 | } |
2558 | if(jaddr2) |
b14b6a8f |
2559 | add_stub_r(type,jaddr2,out,i,ar,i_regs,ccadj[i],reglist); |
0ff8c62c |
2560 | if(opcode[i]==0x3a) // SWC2 |
2561 | if(!(i_regs->waswritten&(1<<rs1[i]))&&!(new_dynarec_hacks&NDHACK_NO_SMC_CHECK)) { |
b9b61529 |
2562 | #if defined(HOST_IMM8) |
2563 | int ir=get_reg(i_regs->regmap,INVCP); |
2564 | assert(ir>=0); |
2565 | emit_cmpmem_indexedsr12_reg(ir,ar,1); |
2566 | #else |
643aeae3 |
2567 | emit_cmpmem_indexedsr12_imm(invalid_code,ar,1); |
b9b61529 |
2568 | #endif |
0bbd1454 |
2569 | #if defined(HAVE_CONDITIONAL_CALL) && !defined(DESTRUCTIVE_SHIFT) |
2570 | emit_callne(invalidate_addr_reg[ar]); |
2571 | #else |
b14b6a8f |
2572 | void *jaddr3 = out; |
b9b61529 |
2573 | emit_jne(0); |
b14b6a8f |
2574 | add_stub(INVCODE_STUB,jaddr3,out,reglist|(1<<HOST_CCREG),ar,0,0,0); |
0bbd1454 |
2575 | #endif |
b9b61529 |
2576 | } |
2577 | if (opcode[i]==0x32) { // LWC2 |
2578 | cop2_put_dreg(copr,tl,HOST_TEMPREG); |
2579 | } |
2580 | } |
2581 | |
57871462 |
2582 | #ifndef multdiv_assemble |
2583 | void multdiv_assemble(int i,struct regstat *i_regs) |
2584 | { |
2585 | printf("Need multdiv_assemble for this architecture.\n"); |
2586 | exit(1); |
2587 | } |
2588 | #endif |
2589 | |
2590 | void mov_assemble(int i,struct regstat *i_regs) |
2591 | { |
2592 | //if(opcode2[i]==0x10||opcode2[i]==0x12) { // MFHI/MFLO |
2593 | //if(opcode2[i]==0x11||opcode2[i]==0x13) { // MTHI/MTLO |
57871462 |
2594 | if(rt1[i]) { |
2595 | signed char sh,sl,th,tl; |
2596 | th=get_reg(i_regs->regmap,rt1[i]|64); |
2597 | tl=get_reg(i_regs->regmap,rt1[i]); |
2598 | //assert(tl>=0); |
2599 | if(tl>=0) { |
2600 | sh=get_reg(i_regs->regmap,rs1[i]|64); |
2601 | sl=get_reg(i_regs->regmap,rs1[i]); |
2602 | if(sl>=0) emit_mov(sl,tl); |
2603 | else emit_loadreg(rs1[i],tl); |
2604 | if(th>=0) { |
2605 | if(sh>=0) emit_mov(sh,th); |
2606 | else emit_loadreg(rs1[i]|64,th); |
2607 | } |
2608 | } |
2609 | } |
2610 | } |
2611 | |
57871462 |
2612 | void syscall_assemble(int i,struct regstat *i_regs) |
2613 | { |
2614 | signed char ccreg=get_reg(i_regs->regmap,CCREG); |
2615 | assert(ccreg==HOST_CCREG); |
2616 | assert(!is_delayslot); |
581335b0 |
2617 | (void)ccreg; |
57871462 |
2618 | emit_movimm(start+i*4,EAX); // Get PC |
2573466a |
2619 | emit_addimm(HOST_CCREG,CLOCK_ADJUST(ccadj[i]),HOST_CCREG); // CHECK: is this right? There should probably be an extra cycle... |
b14b6a8f |
2620 | emit_jmp(jump_syscall_hle); // XXX |
7139f3c8 |
2621 | } |
2622 | |
2623 | void hlecall_assemble(int i,struct regstat *i_regs) |
2624 | { |
41e82ad4 |
2625 | extern void psxNULL(); |
7139f3c8 |
2626 | signed char ccreg=get_reg(i_regs->regmap,CCREG); |
2627 | assert(ccreg==HOST_CCREG); |
2628 | assert(!is_delayslot); |
581335b0 |
2629 | (void)ccreg; |
7139f3c8 |
2630 | emit_movimm(start+i*4+4,0); // Get PC |
dd79da89 |
2631 | uint32_t hleCode = source[i] & 0x03ffffff; |
b14b6a8f |
2632 | if (hleCode >= ARRAY_SIZE(psxHLEt)) |
643aeae3 |
2633 | emit_movimm((uintptr_t)psxNULL,1); |
dd79da89 |
2634 | else |
643aeae3 |
2635 | emit_movimm((uintptr_t)psxHLEt[hleCode],1); |
2573466a |
2636 | emit_addimm(HOST_CCREG,CLOCK_ADJUST(ccadj[i]),HOST_CCREG); // XXX |
b14b6a8f |
2637 | emit_jmp(jump_hlecall); |
57871462 |
2638 | } |
2639 | |
1e973cb0 |
2640 | void intcall_assemble(int i,struct regstat *i_regs) |
2641 | { |
2642 | signed char ccreg=get_reg(i_regs->regmap,CCREG); |
2643 | assert(ccreg==HOST_CCREG); |
2644 | assert(!is_delayslot); |
581335b0 |
2645 | (void)ccreg; |
1e973cb0 |
2646 | emit_movimm(start+i*4,0); // Get PC |
2573466a |
2647 | emit_addimm(HOST_CCREG,CLOCK_ADJUST(ccadj[i]),HOST_CCREG); |
b14b6a8f |
2648 | emit_jmp(jump_intcall); |
1e973cb0 |
2649 | } |
2650 | |
57871462 |
2651 | void ds_assemble(int i,struct regstat *i_regs) |
2652 | { |
ffb0b9e0 |
2653 | speculate_register_values(i); |
57871462 |
2654 | is_delayslot=1; |
2655 | switch(itype[i]) { |
2656 | case ALU: |
2657 | alu_assemble(i,i_regs);break; |
2658 | case IMM16: |
2659 | imm16_assemble(i,i_regs);break; |
2660 | case SHIFT: |
2661 | shift_assemble(i,i_regs);break; |
2662 | case SHIFTIMM: |
2663 | shiftimm_assemble(i,i_regs);break; |
2664 | case LOAD: |
2665 | load_assemble(i,i_regs);break; |
2666 | case LOADLR: |
2667 | loadlr_assemble(i,i_regs);break; |
2668 | case STORE: |
2669 | store_assemble(i,i_regs);break; |
2670 | case STORELR: |
2671 | storelr_assemble(i,i_regs);break; |
2672 | case COP0: |
2673 | cop0_assemble(i,i_regs);break; |
2674 | case COP1: |
2675 | cop1_assemble(i,i_regs);break; |
2676 | case C1LS: |
2677 | c1ls_assemble(i,i_regs);break; |
b9b61529 |
2678 | case COP2: |
2679 | cop2_assemble(i,i_regs);break; |
2680 | case C2LS: |
2681 | c2ls_assemble(i,i_regs);break; |
2682 | case C2OP: |
2683 | c2op_assemble(i,i_regs);break; |
57871462 |
2684 | case MULTDIV: |
2685 | multdiv_assemble(i,i_regs);break; |
2686 | case MOV: |
2687 | mov_assemble(i,i_regs);break; |
2688 | case SYSCALL: |
7139f3c8 |
2689 | case HLECALL: |
1e973cb0 |
2690 | case INTCALL: |
57871462 |
2691 | case SPAN: |
2692 | case UJUMP: |
2693 | case RJUMP: |
2694 | case CJUMP: |
2695 | case SJUMP: |
c43b5311 |
2696 | SysPrintf("Jump in the delay slot. This is probably a bug.\n"); |
57871462 |
2697 | } |
2698 | is_delayslot=0; |
2699 | } |
2700 | |
2701 | // Is the branch target a valid internal jump? |
ad49de89 |
2702 | static int internal_branch(int addr) |
57871462 |
2703 | { |
2704 | if(addr&1) return 0; // Indirect (register) jump |
2705 | if(addr>=start && addr<start+slen*4-4) |
2706 | { |
71e490c5 |
2707 | return 1; |
57871462 |
2708 | } |
2709 | return 0; |
2710 | } |
2711 | |
ad49de89 |
2712 | static void wb_invalidate(signed char pre[],signed char entry[],uint64_t dirty,uint64_t u) |
57871462 |
2713 | { |
2714 | int hr; |
2715 | for(hr=0;hr<HOST_REGS;hr++) { |
2716 | if(hr!=EXCLUDE_REG) { |
2717 | if(pre[hr]!=entry[hr]) { |
2718 | if(pre[hr]>=0) { |
2719 | if((dirty>>hr)&1) { |
2720 | if(get_reg(entry,pre[hr])<0) { |
00fa9369 |
2721 | assert(pre[hr]<64); |
2722 | if(!((u>>pre[hr])&1)) |
2723 | emit_storereg(pre[hr],hr); |
57871462 |
2724 | } |
2725 | } |
2726 | } |
2727 | } |
2728 | } |
2729 | } |
2730 | // Move from one register to another (no writeback) |
2731 | for(hr=0;hr<HOST_REGS;hr++) { |
2732 | if(hr!=EXCLUDE_REG) { |
2733 | if(pre[hr]!=entry[hr]) { |
2734 | if(pre[hr]>=0&&(pre[hr]&63)<TEMPREG) { |
2735 | int nr; |
2736 | if((nr=get_reg(entry,pre[hr]))>=0) { |
2737 | emit_mov(hr,nr); |
2738 | } |
2739 | } |
2740 | } |
2741 | } |
2742 | } |
2743 | } |
57871462 |
2744 | |
2745 | // Load the specified registers |
2746 | // This only loads the registers given as arguments because |
2747 | // we don't want to load things that will be overwritten |
ad49de89 |
2748 | static void load_regs(signed char entry[],signed char regmap[],int rs1,int rs2) |
57871462 |
2749 | { |
2750 | int hr; |
2751 | // Load 32-bit regs |
2752 | for(hr=0;hr<HOST_REGS;hr++) { |
2753 | if(hr!=EXCLUDE_REG&®map[hr]>=0) { |
2754 | if(entry[hr]!=regmap[hr]) { |
2755 | if(regmap[hr]==rs1||regmap[hr]==rs2) |
2756 | { |
2757 | if(regmap[hr]==0) { |
2758 | emit_zeroreg(hr); |
2759 | } |
2760 | else |
2761 | { |
2762 | emit_loadreg(regmap[hr],hr); |
2763 | } |
2764 | } |
2765 | } |
2766 | } |
2767 | } |
57871462 |
2768 | } |
2769 | |
2770 | // Load registers prior to the start of a loop |
2771 | // so that they are not loaded within the loop |
2772 | static void loop_preload(signed char pre[],signed char entry[]) |
2773 | { |
2774 | int hr; |
2775 | for(hr=0;hr<HOST_REGS;hr++) { |
2776 | if(hr!=EXCLUDE_REG) { |
2777 | if(pre[hr]!=entry[hr]) { |
2778 | if(entry[hr]>=0) { |
2779 | if(get_reg(pre,entry[hr])<0) { |
2780 | assem_debug("loop preload:\n"); |
2781 | //printf("loop preload: %d\n",hr); |
2782 | if(entry[hr]==0) { |
2783 | emit_zeroreg(hr); |
2784 | } |
2785 | else if(entry[hr]<TEMPREG) |
2786 | { |
2787 | emit_loadreg(entry[hr],hr); |
2788 | } |
2789 | else if(entry[hr]-64<TEMPREG) |
2790 | { |
2791 | emit_loadreg(entry[hr],hr); |
2792 | } |
2793 | } |
2794 | } |
2795 | } |
2796 | } |
2797 | } |
2798 | } |
2799 | |
2800 | // Generate address for load/store instruction |
b9b61529 |
2801 | // goes to AGEN for writes, FTEMP for LOADLR and cop1/2 loads |
57871462 |
2802 | void address_generation(int i,struct regstat *i_regs,signed char entry[]) |
2803 | { |
b9b61529 |
2804 | if(itype[i]==LOAD||itype[i]==LOADLR||itype[i]==STORE||itype[i]==STORELR||itype[i]==C1LS||itype[i]==C2LS) { |
5194fb95 |
2805 | int ra=-1; |
57871462 |
2806 | int agr=AGEN1+(i&1); |
57871462 |
2807 | if(itype[i]==LOAD) { |
2808 | ra=get_reg(i_regs->regmap,rt1[i]); |
9f51b4b9 |
2809 | if(ra<0) ra=get_reg(i_regs->regmap,-1); |
535d208a |
2810 | assert(ra>=0); |
57871462 |
2811 | } |
2812 | if(itype[i]==LOADLR) { |
2813 | ra=get_reg(i_regs->regmap,FTEMP); |
2814 | } |
2815 | if(itype[i]==STORE||itype[i]==STORELR) { |
2816 | ra=get_reg(i_regs->regmap,agr); |
2817 | if(ra<0) ra=get_reg(i_regs->regmap,-1); |
2818 | } |
b9b61529 |
2819 | if(itype[i]==C1LS||itype[i]==C2LS) { |
2820 | if ((opcode[i]&0x3b)==0x31||(opcode[i]&0x3b)==0x32) // LWC1/LDC1/LWC2/LDC2 |
57871462 |
2821 | ra=get_reg(i_regs->regmap,FTEMP); |
1fd1aceb |
2822 | else { // SWC1/SDC1/SWC2/SDC2 |
57871462 |
2823 | ra=get_reg(i_regs->regmap,agr); |
2824 | if(ra<0) ra=get_reg(i_regs->regmap,-1); |
2825 | } |
2826 | } |
2827 | int rs=get_reg(i_regs->regmap,rs1[i]); |
57871462 |
2828 | if(ra>=0) { |
2829 | int offset=imm[i]; |
2830 | int c=(i_regs->wasconst>>rs)&1; |
2831 | if(rs1[i]==0) { |
2832 | // Using r0 as a base address |
57871462 |
2833 | if(!entry||entry[ra]!=agr) { |
2834 | if (opcode[i]==0x22||opcode[i]==0x26) { |
2835 | emit_movimm(offset&0xFFFFFFFC,ra); // LWL/LWR |
2836 | }else if (opcode[i]==0x1a||opcode[i]==0x1b) { |
2837 | emit_movimm(offset&0xFFFFFFF8,ra); // LDL/LDR |
2838 | }else{ |
2839 | emit_movimm(offset,ra); |
2840 | } |
2841 | } // else did it in the previous cycle |
2842 | } |
2843 | else if(rs<0) { |
2844 | if(!entry||entry[ra]!=rs1[i]) |
2845 | emit_loadreg(rs1[i],ra); |
2846 | //if(!entry||entry[ra]!=rs1[i]) |
2847 | // printf("poor load scheduling!\n"); |
2848 | } |
2849 | else if(c) { |
57871462 |
2850 | if(rs1[i]!=rt1[i]||itype[i]!=LOAD) { |
2851 | if(!entry||entry[ra]!=agr) { |
2852 | if (opcode[i]==0x22||opcode[i]==0x26) { |
2853 | emit_movimm((constmap[i][rs]+offset)&0xFFFFFFFC,ra); // LWL/LWR |
2854 | }else if (opcode[i]==0x1a||opcode[i]==0x1b) { |
2855 | emit_movimm((constmap[i][rs]+offset)&0xFFFFFFF8,ra); // LDL/LDR |
2856 | }else{ |
57871462 |
2857 | emit_movimm(constmap[i][rs]+offset,ra); |
8575a877 |
2858 | regs[i].loadedconst|=1<<ra; |
57871462 |
2859 | } |
2860 | } // else did it in the previous cycle |
2861 | } // else load_consts already did it |
2862 | } |
2863 | if(offset&&!c&&rs1[i]) { |
2864 | if(rs>=0) { |
2865 | emit_addimm(rs,offset,ra); |
2866 | }else{ |
2867 | emit_addimm(ra,offset,ra); |
2868 | } |
2869 | } |
2870 | } |
2871 | } |
2872 | // Preload constants for next instruction |
b9b61529 |
2873 | 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 |
2874 | int agr,ra; |
57871462 |
2875 | // Actual address |
2876 | agr=AGEN1+((i+1)&1); |
2877 | ra=get_reg(i_regs->regmap,agr); |
2878 | if(ra>=0) { |
2879 | int rs=get_reg(regs[i+1].regmap,rs1[i+1]); |
2880 | int offset=imm[i+1]; |
2881 | int c=(regs[i+1].wasconst>>rs)&1; |
2882 | if(c&&(rs1[i+1]!=rt1[i+1]||itype[i+1]!=LOAD)) { |
2883 | if (opcode[i+1]==0x22||opcode[i+1]==0x26) { |
2884 | emit_movimm((constmap[i+1][rs]+offset)&0xFFFFFFFC,ra); // LWL/LWR |
2885 | }else if (opcode[i+1]==0x1a||opcode[i+1]==0x1b) { |
2886 | emit_movimm((constmap[i+1][rs]+offset)&0xFFFFFFF8,ra); // LDL/LDR |
2887 | }else{ |
57871462 |
2888 | emit_movimm(constmap[i+1][rs]+offset,ra); |
8575a877 |
2889 | regs[i+1].loadedconst|=1<<ra; |
57871462 |
2890 | } |
2891 | } |
2892 | else if(rs1[i+1]==0) { |
2893 | // Using r0 as a base address |
2894 | if (opcode[i+1]==0x22||opcode[i+1]==0x26) { |
2895 | emit_movimm(offset&0xFFFFFFFC,ra); // LWL/LWR |
2896 | }else if (opcode[i+1]==0x1a||opcode[i+1]==0x1b) { |
2897 | emit_movimm(offset&0xFFFFFFF8,ra); // LDL/LDR |
2898 | }else{ |
2899 | emit_movimm(offset,ra); |
2900 | } |
2901 | } |
2902 | } |
2903 | } |
2904 | } |
2905 | |
e2b5e7aa |
2906 | static int get_final_value(int hr, int i, int *value) |
57871462 |
2907 | { |
2908 | int reg=regs[i].regmap[hr]; |
2909 | while(i<slen-1) { |
2910 | if(regs[i+1].regmap[hr]!=reg) break; |
2911 | if(!((regs[i+1].isconst>>hr)&1)) break; |
2912 | if(bt[i+1]) break; |
2913 | i++; |
2914 | } |
2915 | if(i<slen-1) { |
2916 | if(itype[i]==UJUMP||itype[i]==RJUMP||itype[i]==CJUMP||itype[i]==SJUMP) { |
2917 | *value=constmap[i][hr]; |
2918 | return 1; |
2919 | } |
2920 | if(!bt[i+1]) { |
2921 | if(itype[i+1]==UJUMP||itype[i+1]==RJUMP||itype[i+1]==CJUMP||itype[i+1]==SJUMP) { |
2922 | // Load in delay slot, out-of-order execution |
2923 | if(itype[i+2]==LOAD&&rs1[i+2]==reg&&rt1[i+2]==reg&&((regs[i+1].wasconst>>hr)&1)) |
2924 | { |
57871462 |
2925 | // Precompute load address |
2926 | *value=constmap[i][hr]+imm[i+2]; |
2927 | return 1; |
2928 | } |
2929 | } |
2930 | if(itype[i+1]==LOAD&&rs1[i+1]==reg&&rt1[i+1]==reg) |
2931 | { |
57871462 |
2932 | // Precompute load address |
2933 | *value=constmap[i][hr]+imm[i+1]; |
643aeae3 |
2934 | //printf("c=%x imm=%lx\n",(long)constmap[i][hr],imm[i+1]); |
57871462 |
2935 | return 1; |
2936 | } |
2937 | } |
2938 | } |
2939 | *value=constmap[i][hr]; |
643aeae3 |
2940 | //printf("c=%lx\n",(long)constmap[i][hr]); |
57871462 |
2941 | if(i==slen-1) return 1; |
00fa9369 |
2942 | assert(reg < 64); |
2943 | return !((unneeded_reg[i+1]>>reg)&1); |
57871462 |
2944 | } |
2945 | |
2946 | // Load registers with known constants |
ad49de89 |
2947 | static void load_consts(signed char pre[],signed char regmap[],int i) |
57871462 |
2948 | { |
8575a877 |
2949 | int hr,hr2; |
2950 | // propagate loaded constant flags |
2951 | if(i==0||bt[i]) |
2952 | regs[i].loadedconst=0; |
2953 | else { |
2954 | for(hr=0;hr<HOST_REGS;hr++) { |
2955 | if(hr!=EXCLUDE_REG&®map[hr]>=0&&((regs[i-1].isconst>>hr)&1)&&pre[hr]==regmap[hr] |
2956 | &®map[hr]==regs[i-1].regmap[hr]&&((regs[i-1].loadedconst>>hr)&1)) |
2957 | { |
2958 | regs[i].loadedconst|=1<<hr; |
2959 | } |
2960 | } |
2961 | } |
57871462 |
2962 | // Load 32-bit regs |
2963 | for(hr=0;hr<HOST_REGS;hr++) { |
2964 | if(hr!=EXCLUDE_REG&®map[hr]>=0) { |
2965 | //if(entry[hr]!=regmap[hr]) { |
8575a877 |
2966 | if(!((regs[i].loadedconst>>hr)&1)) { |
ad49de89 |
2967 | assert(regmap[hr]<64); |
2968 | if(((regs[i].isconst>>hr)&1)&®map[hr]>0) { |
8575a877 |
2969 | int value,similar=0; |
57871462 |
2970 | if(get_final_value(hr,i,&value)) { |
8575a877 |
2971 | // see if some other register has similar value |
2972 | for(hr2=0;hr2<HOST_REGS;hr2++) { |
2973 | if(hr2!=EXCLUDE_REG&&((regs[i].loadedconst>>hr2)&1)) { |
2974 | if(is_similar_value(value,constmap[i][hr2])) { |
2975 | similar=1; |
2976 | break; |
2977 | } |
2978 | } |
2979 | } |
2980 | if(similar) { |
2981 | int value2; |
2982 | if(get_final_value(hr2,i,&value2)) // is this needed? |
2983 | emit_movimm_from(value2,hr2,value,hr); |
2984 | else |
2985 | emit_movimm(value,hr); |
2986 | } |
2987 | else if(value==0) { |
57871462 |
2988 | emit_zeroreg(hr); |
2989 | } |
2990 | else { |
2991 | emit_movimm(value,hr); |
2992 | } |
2993 | } |
8575a877 |
2994 | regs[i].loadedconst|=1<<hr; |
57871462 |
2995 | } |
2996 | } |
2997 | } |
2998 | } |
57871462 |
2999 | } |
ad49de89 |
3000 | |
3001 | void load_all_consts(signed char regmap[], u_int dirty, int i) |
57871462 |
3002 | { |
3003 | int hr; |
3004 | // Load 32-bit regs |
3005 | for(hr=0;hr<HOST_REGS;hr++) { |
3006 | if(hr!=EXCLUDE_REG&®map[hr]>=0&&((dirty>>hr)&1)) { |
ad49de89 |
3007 | assert(regmap[hr] < 64); |
3008 | if(((regs[i].isconst>>hr)&1)&®map[hr]>0) { |
57871462 |
3009 | int value=constmap[i][hr]; |
3010 | if(value==0) { |
3011 | emit_zeroreg(hr); |
3012 | } |
3013 | else { |
3014 | emit_movimm(value,hr); |
3015 | } |
3016 | } |
3017 | } |
3018 | } |
57871462 |
3019 | } |
3020 | |
3021 | // Write out all dirty registers (except cycle count) |
ad49de89 |
3022 | static void wb_dirtys(signed char i_regmap[],uint64_t i_dirty) |
57871462 |
3023 | { |
3024 | int hr; |
3025 | for(hr=0;hr<HOST_REGS;hr++) { |
3026 | if(hr!=EXCLUDE_REG) { |
3027 | if(i_regmap[hr]>0) { |
3028 | if(i_regmap[hr]!=CCREG) { |
3029 | if((i_dirty>>hr)&1) { |
00fa9369 |
3030 | assert(i_regmap[hr]<64); |
3031 | emit_storereg(i_regmap[hr],hr); |
57871462 |
3032 | } |
3033 | } |
3034 | } |
3035 | } |
3036 | } |
3037 | } |
ad49de89 |
3038 | |
57871462 |
3039 | // Write out dirty registers that we need to reload (pair with load_needed_regs) |
3040 | // This writes the registers not written by store_regs_bt |
ad49de89 |
3041 | void wb_needed_dirtys(signed char i_regmap[],uint64_t i_dirty,int addr) |
57871462 |
3042 | { |
3043 | int hr; |
3044 | int t=(addr-start)>>2; |
3045 | for(hr=0;hr<HOST_REGS;hr++) { |
3046 | if(hr!=EXCLUDE_REG) { |
3047 | if(i_regmap[hr]>0) { |
3048 | if(i_regmap[hr]!=CCREG) { |
ad49de89 |
3049 | if(i_regmap[hr]==regs[t].regmap_entry[hr] && ((regs[t].dirty>>hr)&1)) { |
57871462 |
3050 | if((i_dirty>>hr)&1) { |
00fa9369 |
3051 | assert(i_regmap[hr]<64); |
3052 | emit_storereg(i_regmap[hr],hr); |
57871462 |
3053 | } |
3054 | } |
3055 | } |
3056 | } |
3057 | } |
3058 | } |
3059 | } |
3060 | |
3061 | // Load all registers (except cycle count) |
3062 | void load_all_regs(signed char i_regmap[]) |
3063 | { |
3064 | int hr; |
3065 | for(hr=0;hr<HOST_REGS;hr++) { |
3066 | if(hr!=EXCLUDE_REG) { |
3067 | if(i_regmap[hr]==0) { |
3068 | emit_zeroreg(hr); |
3069 | } |
3070 | else |
ea3d2e6e |
3071 | if(i_regmap[hr]>0 && (i_regmap[hr]&63)<TEMPREG && i_regmap[hr]!=CCREG) |
57871462 |
3072 | { |
3073 | emit_loadreg(i_regmap[hr],hr); |
3074 | } |
3075 | } |
3076 | } |
3077 | } |
3078 | |
3079 | // Load all current registers also needed by next instruction |
3080 | void load_needed_regs(signed char i_regmap[],signed char next_regmap[]) |
3081 | { |
3082 | int hr; |
3083 | for(hr=0;hr<HOST_REGS;hr++) { |
3084 | if(hr!=EXCLUDE_REG) { |
3085 | if(get_reg(next_regmap,i_regmap[hr])>=0) { |
3086 | if(i_regmap[hr]==0) { |
3087 | emit_zeroreg(hr); |
3088 | } |
3089 | else |
ea3d2e6e |
3090 | if(i_regmap[hr]>0 && (i_regmap[hr]&63)<TEMPREG && i_regmap[hr]!=CCREG) |
57871462 |
3091 | { |
3092 | emit_loadreg(i_regmap[hr],hr); |
3093 | } |
3094 | } |
3095 | } |
3096 | } |
3097 | } |
3098 | |
3099 | // Load all regs, storing cycle count if necessary |
3100 | void load_regs_entry(int t) |
3101 | { |
3102 | int hr; |
2573466a |
3103 | if(is_ds[t]) emit_addimm(HOST_CCREG,CLOCK_ADJUST(1),HOST_CCREG); |
3104 | else if(ccadj[t]) emit_addimm(HOST_CCREG,-CLOCK_ADJUST(ccadj[t]),HOST_CCREG); |
57871462 |
3105 | if(regs[t].regmap_entry[HOST_CCREG]!=CCREG) { |
3106 | emit_storereg(CCREG,HOST_CCREG); |
3107 | } |
3108 | // Load 32-bit regs |
3109 | for(hr=0;hr<HOST_REGS;hr++) { |
ea3d2e6e |
3110 | if(regs[t].regmap_entry[hr]>=0&®s[t].regmap_entry[hr]<TEMPREG) { |
57871462 |
3111 | if(regs[t].regmap_entry[hr]==0) { |
3112 | emit_zeroreg(hr); |
3113 | } |
3114 | else if(regs[t].regmap_entry[hr]!=CCREG) |
3115 | { |
3116 | emit_loadreg(regs[t].regmap_entry[hr],hr); |
3117 | } |
3118 | } |
3119 | } |
57871462 |
3120 | } |
3121 | |
3122 | // Store dirty registers prior to branch |
ad49de89 |
3123 | void store_regs_bt(signed char i_regmap[],uint64_t i_dirty,int addr) |
57871462 |
3124 | { |
ad49de89 |
3125 | if(internal_branch(addr)) |
57871462 |
3126 | { |
3127 | int t=(addr-start)>>2; |
3128 | int hr; |
3129 | for(hr=0;hr<HOST_REGS;hr++) { |
3130 | if(hr!=EXCLUDE_REG) { |
3131 | if(i_regmap[hr]>0 && i_regmap[hr]!=CCREG) { |
ad49de89 |
3132 | if(i_regmap[hr]!=regs[t].regmap_entry[hr] || !((regs[t].dirty>>hr)&1)) { |
57871462 |
3133 | if((i_dirty>>hr)&1) { |
00fa9369 |
3134 | assert(i_regmap[hr]<64); |
3135 | if(!((unneeded_reg[t]>>i_regmap[hr])&1)) |
3136 | emit_storereg(i_regmap[hr],hr); |
57871462 |
3137 | } |
3138 | } |
3139 | } |
3140 | } |
3141 | } |
3142 | } |
3143 | else |
3144 | { |
3145 | // Branch out of this block, write out all dirty regs |
ad49de89 |
3146 | wb_dirtys(i_regmap,i_dirty); |
57871462 |
3147 | } |
3148 | } |
3149 | |
3150 | // Load all needed registers for branch target |
ad49de89 |
3151 | static void load_regs_bt(signed char i_regmap[],uint64_t i_dirty,int addr) |
57871462 |
3152 | { |
3153 | //if(addr>=start && addr<(start+slen*4)) |
ad49de89 |
3154 | if(internal_branch(addr)) |
57871462 |
3155 | { |
3156 | int t=(addr-start)>>2; |
3157 | int hr; |
3158 | // Store the cycle count before loading something else |
3159 | if(i_regmap[HOST_CCREG]!=CCREG) { |
3160 | assert(i_regmap[HOST_CCREG]==-1); |
3161 | } |
3162 | if(regs[t].regmap_entry[HOST_CCREG]!=CCREG) { |
3163 | emit_storereg(CCREG,HOST_CCREG); |
3164 | } |
3165 | // Load 32-bit regs |
3166 | for(hr=0;hr<HOST_REGS;hr++) { |
ea3d2e6e |
3167 | if(hr!=EXCLUDE_REG&®s[t].regmap_entry[hr]>=0&®s[t].regmap_entry[hr]<TEMPREG) { |
00fa9369 |
3168 | if(i_regmap[hr]!=regs[t].regmap_entry[hr]) { |
57871462 |
3169 | if(regs[t].regmap_entry[hr]==0) { |
3170 | emit_zeroreg(hr); |
3171 | } |
3172 | else if(regs[t].regmap_entry[hr]!=CCREG) |
3173 | { |
3174 | emit_loadreg(regs[t].regmap_entry[hr],hr); |
3175 | } |
3176 | } |
3177 | } |
3178 | } |
57871462 |
3179 | } |
3180 | } |
3181 | |
ad49de89 |
3182 | static int match_bt(signed char i_regmap[],uint64_t i_dirty,int addr) |
57871462 |
3183 | { |
3184 | if(addr>=start && addr<start+slen*4-4) |
3185 | { |
3186 | int t=(addr-start)>>2; |
3187 | int hr; |
3188 | if(regs[t].regmap_entry[HOST_CCREG]!=CCREG) return 0; |
3189 | for(hr=0;hr<HOST_REGS;hr++) |
3190 | { |
3191 | if(hr!=EXCLUDE_REG) |
3192 | { |
3193 | if(i_regmap[hr]!=regs[t].regmap_entry[hr]) |
3194 | { |
ea3d2e6e |
3195 | if(regs[t].regmap_entry[hr]>=0&&(regs[t].regmap_entry[hr]|64)<TEMPREG+64) |
57871462 |
3196 | { |
3197 | return 0; |
3198 | } |
9f51b4b9 |
3199 | else |
57871462 |
3200 | if((i_dirty>>hr)&1) |
3201 | { |
ea3d2e6e |
3202 | if(i_regmap[hr]<TEMPREG) |
57871462 |
3203 | { |
3204 | if(!((unneeded_reg[t]>>i_regmap[hr])&1)) |
3205 | return 0; |
3206 | } |
ea3d2e6e |
3207 | else if(i_regmap[hr]>=64&&i_regmap[hr]<TEMPREG+64) |
57871462 |
3208 | { |
00fa9369 |
3209 | assert(0); |
57871462 |
3210 | } |
3211 | } |
3212 | } |
3213 | else // Same register but is it 32-bit or dirty? |
3214 | if(i_regmap[hr]>=0) |
3215 | { |
3216 | if(!((regs[t].dirty>>hr)&1)) |
3217 | { |
3218 | if((i_dirty>>hr)&1) |
3219 | { |
3220 | if(!((unneeded_reg[t]>>i_regmap[hr])&1)) |
3221 | { |
3222 | //printf("%x: dirty no match\n",addr); |
3223 | return 0; |
3224 | } |
3225 | } |
3226 | } |
57871462 |
3227 | } |
3228 | } |
3229 | } |
57871462 |
3230 | // Delay slots are not valid branch targets |
ad49de89 |
3231 | //if(t>0&&(itype[t-1]==RJUMP||itype[t-1]==UJUMP||itype[t-1]==CJUMP||itype[t-1]==SJUMP)) return 0; |
57871462 |
3232 | // Delay slots require additional processing, so do not match |
3233 | if(is_ds[t]) return 0; |
3234 | } |
3235 | else |
3236 | { |
3237 | int hr; |
3238 | for(hr=0;hr<HOST_REGS;hr++) |
3239 | { |
3240 | if(hr!=EXCLUDE_REG) |
3241 | { |
3242 | if(i_regmap[hr]>=0) |
3243 | { |
3244 | if(hr!=HOST_CCREG||i_regmap[hr]!=CCREG) |
3245 | { |
3246 | if((i_dirty>>hr)&1) |
3247 | { |
3248 | return 0; |
3249 | } |
3250 | } |
3251 | } |
3252 | } |
3253 | } |
3254 | } |
3255 | return 1; |
3256 | } |
3257 | |
dd114d7d |
3258 | #ifdef DRC_DBG |
3259 | static void drc_dbg_emit_do_cmp(int i) |
3260 | { |
3261 | extern void do_insn_cmp(); |
3262 | extern int cycle; |
3263 | u_int hr,reglist=0; |
3264 | |
3265 | for(hr=0;hr<HOST_REGS;hr++) |
3266 | if(regs[i].regmap[hr]>=0) reglist|=1<<hr; |
3267 | save_regs(reglist); |
3268 | emit_movimm(start+i*4,0); |
643aeae3 |
3269 | emit_writeword(0,&pcaddr); |
3270 | emit_call(do_insn_cmp); |
3271 | //emit_readword(&cycle,0); |
dd114d7d |
3272 | //emit_addimm(0,2,0); |
643aeae3 |
3273 | //emit_writeword(0,&cycle); |
dd114d7d |
3274 | restore_regs(reglist); |
3275 | } |
3276 | #else |
3277 | #define drc_dbg_emit_do_cmp(x) |
3278 | #endif |
3279 | |
57871462 |
3280 | // Used when a branch jumps into the delay slot of another branch |
3281 | void ds_assemble_entry(int i) |
3282 | { |
3283 | int t=(ba[i]-start)>>2; |
df4dc2b1 |
3284 | if (!instr_addr[t]) |
3285 | instr_addr[t] = out; |
57871462 |
3286 | assem_debug("Assemble delay slot at %x\n",ba[i]); |
3287 | assem_debug("<->\n"); |
dd114d7d |
3288 | drc_dbg_emit_do_cmp(t); |
57871462 |
3289 | if(regs[t].regmap_entry[HOST_CCREG]==CCREG&®s[t].regmap[HOST_CCREG]!=CCREG) |
ad49de89 |
3290 | wb_register(CCREG,regs[t].regmap_entry,regs[t].wasdirty); |
3291 | load_regs(regs[t].regmap_entry,regs[t].regmap,rs1[t],rs2[t]); |
57871462 |
3292 | address_generation(t,®s[t],regs[t].regmap_entry); |
b9b61529 |
3293 | if(itype[t]==STORE||itype[t]==STORELR||(opcode[t]&0x3b)==0x39||(opcode[t]&0x3b)==0x3a) |
ad49de89 |
3294 | load_regs(regs[t].regmap_entry,regs[t].regmap,INVCP,INVCP); |
57871462 |
3295 | is_delayslot=0; |
3296 | switch(itype[t]) { |
3297 | case ALU: |
3298 | alu_assemble(t,®s[t]);break; |
3299 | case IMM16: |
3300 | imm16_assemble(t,®s[t]);break; |
3301 | case SHIFT: |
3302 | shift_assemble(t,®s[t]);break; |
3303 | case SHIFTIMM: |
3304 | shiftimm_assemble(t,®s[t]);break; |
3305 | case LOAD: |
3306 | load_assemble(t,®s[t]);break; |
3307 | case LOADLR: |
3308 | loadlr_assemble(t,®s[t]);break; |
3309 | case STORE: |
3310 | store_assemble(t,®s[t]);break; |
3311 | case STORELR: |
3312 | storelr_assemble(t,®s[t]);break; |
3313 | case COP0: |
3314 | cop0_assemble(t,®s[t]);break; |
3315 | case COP1: |
3316 | cop1_assemble(t,®s[t]);break; |
3317 | case C1LS: |
3318 | c1ls_assemble(t,®s[t]);break; |
b9b61529 |
3319 | case COP2: |
3320 | cop2_assemble(t,®s[t]);break; |
3321 | case C2LS: |
3322 | c2ls_assemble(t,®s[t]);break; |
3323 | case C2OP: |
3324 | c2op_assemble(t,®s[t]);break; |
57871462 |
3325 | case MULTDIV: |
3326 | multdiv_assemble(t,®s[t]);break; |
3327 | case MOV: |
3328 | mov_assemble(t,®s[t]);break; |
3329 | case SYSCALL: |
7139f3c8 |
3330 | case HLECALL: |
1e973cb0 |
3331 | case INTCALL: |
57871462 |
3332 | case SPAN: |
3333 | case UJUMP: |
3334 | case RJUMP: |
3335 | case CJUMP: |
3336 | case SJUMP: |
c43b5311 |
3337 | SysPrintf("Jump in the delay slot. This is probably a bug.\n"); |
57871462 |
3338 | } |
ad49de89 |
3339 | store_regs_bt(regs[t].regmap,regs[t].dirty,ba[i]+4); |
3340 | load_regs_bt(regs[t].regmap,regs[t].dirty,ba[i]+4); |
3341 | if(internal_branch(ba[i]+4)) |
57871462 |
3342 | assem_debug("branch: internal\n"); |
3343 | else |
3344 | assem_debug("branch: external\n"); |
ad49de89 |
3345 | assert(internal_branch(ba[i]+4)); |
3346 | add_to_linker(out,ba[i]+4,internal_branch(ba[i]+4)); |
57871462 |
3347 | emit_jmp(0); |
3348 | } |
3349 | |
3350 | void do_cc(int i,signed char i_regmap[],int *adj,int addr,int taken,int invert) |
3351 | { |
3352 | int count; |
b14b6a8f |
3353 | void *jaddr; |
3354 | void *idle=NULL; |
b6e87b2b |
3355 | int t=0; |
57871462 |
3356 | if(itype[i]==RJUMP) |
3357 | { |
3358 | *adj=0; |
3359 | } |
3360 | //if(ba[i]>=start && ba[i]<(start+slen*4)) |
ad49de89 |
3361 | if(internal_branch(ba[i])) |
57871462 |
3362 | { |
b6e87b2b |
3363 | t=(ba[i]-start)>>2; |
57871462 |
3364 | if(is_ds[t]) *adj=-1; // Branch into delay slot adds an extra cycle |
3365 | else *adj=ccadj[t]; |
3366 | } |
3367 | else |
3368 | { |
3369 | *adj=0; |
3370 | } |
3371 | count=ccadj[i]; |
3372 | if(taken==TAKEN && i==(ba[i]-start)>>2 && source[i+1]==0) { |
3373 | // Idle loop |
3374 | if(count&1) emit_addimm_and_set_flags(2*(count+2),HOST_CCREG); |
b14b6a8f |
3375 | idle=out; |
57871462 |
3376 | //emit_subfrommem(&idlecount,HOST_CCREG); // Count idle cycles |
3377 | emit_andimm(HOST_CCREG,3,HOST_CCREG); |
b14b6a8f |
3378 | jaddr=out; |
57871462 |
3379 | emit_jmp(0); |
3380 | } |
3381 | else if(*adj==0||invert) { |
b6e87b2b |
3382 | int cycles=CLOCK_ADJUST(count+2); |
3383 | // faster loop HACK |
3384 | if (t&&*adj) { |
3385 | int rel=t-i; |
3386 | if(-NO_CYCLE_PENALTY_THR<rel&&rel<0) |
3387 | cycles=CLOCK_ADJUST(*adj)+count+2-*adj; |
3388 | } |
3389 | emit_addimm_and_set_flags(cycles,HOST_CCREG); |
b14b6a8f |
3390 | jaddr=out; |
57871462 |
3391 | emit_jns(0); |
3392 | } |
3393 | else |
3394 | { |
2573466a |
3395 | emit_cmpimm(HOST_CCREG,-CLOCK_ADJUST(count+2)); |
b14b6a8f |
3396 | jaddr=out; |
57871462 |
3397 | emit_jns(0); |
3398 | } |
b14b6a8f |
3399 | add_stub(CC_STUB,jaddr,idle?idle:out,(*adj==0||invert||idle)?0:(count+2),i,addr,taken,0); |
57871462 |
3400 | } |
3401 | |
b14b6a8f |
3402 | static void do_ccstub(int n) |
57871462 |
3403 | { |
3404 | literal_pool(256); |
b14b6a8f |
3405 | assem_debug("do_ccstub %x\n",start+stubs[n].b*4); |
3406 | set_jump_target(stubs[n].addr, out); |
3407 | int i=stubs[n].b; |
3408 | if(stubs[n].d==NULLDS) { |
57871462 |
3409 | // Delay slot instruction is nullified ("likely" branch) |
ad49de89 |
3410 | wb_dirtys(regs[i].regmap,regs[i].dirty); |
57871462 |
3411 | } |
b14b6a8f |
3412 | else if(stubs[n].d!=TAKEN) { |
ad49de89 |
3413 | wb_dirtys(branch_regs[i].regmap,branch_regs[i].dirty); |
57871462 |
3414 | } |
3415 | else { |
ad49de89 |
3416 | if(internal_branch(ba[i])) |
3417 | wb_needed_dirtys(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
3418 | } |
b14b6a8f |
3419 | if(stubs[n].c!=-1) |
57871462 |
3420 | { |
3421 | // Save PC as return address |
b14b6a8f |
3422 | emit_movimm(stubs[n].c,EAX); |
643aeae3 |
3423 | emit_writeword(EAX,&pcaddr); |
57871462 |
3424 | } |
3425 | else |
3426 | { |
3427 | // Return address depends on which way the branch goes |
ad49de89 |
3428 | if(itype[i]==CJUMP||itype[i]==SJUMP) |
57871462 |
3429 | { |
3430 | int s1l=get_reg(branch_regs[i].regmap,rs1[i]); |
57871462 |
3431 | int s2l=get_reg(branch_regs[i].regmap,rs2[i]); |
57871462 |
3432 | if(rs1[i]==0) |
3433 | { |
ad49de89 |
3434 | s1l=s2l; |
3435 | s2l=-1; |
57871462 |
3436 | } |
3437 | else if(rs2[i]==0) |
3438 | { |
ad49de89 |
3439 | s2l=-1; |
57871462 |
3440 | } |
3441 | assert(s1l>=0); |
3442 | #ifdef DESTRUCTIVE_WRITEBACK |
3443 | if(rs1[i]) { |
ad49de89 |
3444 | if((branch_regs[i].dirty>>s1l)&&1) |
57871462 |
3445 | emit_loadreg(rs1[i],s1l); |
9f51b4b9 |
3446 | } |
57871462 |
3447 | else { |
ad49de89 |
3448 | if((branch_regs[i].dirty>>s1l)&1) |
57871462 |
3449 | emit_loadreg(rs2[i],s1l); |
3450 | } |
3451 | if(s2l>=0) |
ad49de89 |
3452 | if((branch_regs[i].dirty>>s2l)&1) |
57871462 |
3453 | emit_loadreg(rs2[i],s2l); |
3454 | #endif |
3455 | int hr=0; |
5194fb95 |
3456 | int addr=-1,alt=-1,ntaddr=-1; |
57871462 |
3457 | while(hr<HOST_REGS) |
3458 | { |
3459 | if(hr!=EXCLUDE_REG && hr!=HOST_CCREG && |
3460 | (branch_regs[i].regmap[hr]&63)!=rs1[i] && |
3461 | (branch_regs[i].regmap[hr]&63)!=rs2[i] ) |
3462 | { |
3463 | addr=hr++;break; |
3464 | } |
3465 | hr++; |
3466 | } |
3467 | while(hr<HOST_REGS) |
3468 | { |
3469 | if(hr!=EXCLUDE_REG && hr!=HOST_CCREG && |
3470 | (branch_regs[i].regmap[hr]&63)!=rs1[i] && |
3471 | (branch_regs[i].regmap[hr]&63)!=rs2[i] ) |
3472 | { |
3473 | alt=hr++;break; |
3474 | } |
3475 | hr++; |
3476 | } |
3477 | if((opcode[i]&0x2E)==6) // BLEZ/BGTZ needs another register |
3478 | { |
3479 | while(hr<HOST_REGS) |
3480 | { |
3481 | if(hr!=EXCLUDE_REG && hr!=HOST_CCREG && |
3482 | (branch_regs[i].regmap[hr]&63)!=rs1[i] && |
3483 | (branch_regs[i].regmap[hr]&63)!=rs2[i] ) |
3484 | { |
3485 | ntaddr=hr;break; |
3486 | } |
3487 | hr++; |
3488 | } |
3489 | assert(hr<HOST_REGS); |
3490 | } |
3491 | if((opcode[i]&0x2f)==4) // BEQ |
3492 | { |
3493 | #ifdef HAVE_CMOV_IMM |
ad49de89 |
3494 | if(s2l>=0) emit_cmp(s1l,s2l); |
3495 | else emit_test(s1l,s1l); |
3496 | emit_cmov2imm_e_ne_compact(ba[i],start+i*4+8,addr); |
3497 | #else |
3498 | emit_mov2imm_compact(ba[i],addr,start+i*4+8,alt); |
3499 | if(s2l>=0) emit_cmp(s1l,s2l); |
3500 | else emit_test(s1l,s1l); |
3501 | emit_cmovne_reg(alt,addr); |
57871462 |
3502 | #endif |
57871462 |
3503 | } |
3504 | if((opcode[i]&0x2f)==5) // BNE |
3505 | { |
3506 | #ifdef HAVE_CMOV_IMM |
ad49de89 |
3507 | if(s2l>=0) emit_cmp(s1l,s2l); |
3508 | else emit_test(s1l,s1l); |
3509 | emit_cmov2imm_e_ne_compact(start+i*4+8,ba[i],addr); |
3510 | #else |
3511 | emit_mov2imm_compact(start+i*4+8,addr,ba[i],alt); |
3512 | if(s2l>=0) emit_cmp(s1l,s2l); |
3513 | else emit_test(s1l,s1l); |
3514 | emit_cmovne_reg(alt,addr); |
57871462 |
3515 | #endif |
57871462 |
3516 | } |
3517 | if((opcode[i]&0x2f)==6) // BLEZ |
3518 | { |
3519 | //emit_movimm(ba[i],alt); |
3520 | //emit_movimm(start+i*4+8,addr); |
3521 | emit_mov2imm_compact(ba[i],alt,start+i*4+8,addr); |
3522 | emit_cmpimm(s1l,1); |
57871462 |
3523 | emit_cmovl_reg(alt,addr); |
57871462 |
3524 | } |
3525 | if((opcode[i]&0x2f)==7) // BGTZ |
3526 | { |
3527 | //emit_movimm(ba[i],addr); |
3528 | //emit_movimm(start+i*4+8,ntaddr); |
3529 | emit_mov2imm_compact(ba[i],addr,start+i*4+8,ntaddr); |
3530 | emit_cmpimm(s1l,1); |
57871462 |
3531 | emit_cmovl_reg(ntaddr,addr); |
57871462 |
3532 | } |
3533 | if((opcode[i]==1)&&(opcode2[i]&0x2D)==0) // BLTZ |
3534 | { |
3535 | //emit_movimm(ba[i],alt); |
3536 | //emit_movimm(start+i*4+8,addr); |
3537 | emit_mov2imm_compact(ba[i],alt,start+i*4+8,addr); |
ad49de89 |
3538 | emit_test(s1l,s1l); |
57871462 |
3539 | emit_cmovs_reg(alt,addr); |
3540 | } |
3541 | if((opcode[i]==1)&&(opcode2[i]&0x2D)==1) // BGEZ |
3542 | { |
3543 | //emit_movimm(ba[i],addr); |
3544 | //emit_movimm(start+i*4+8,alt); |
3545 | emit_mov2imm_compact(ba[i],addr,start+i*4+8,alt); |
ad49de89 |
3546 | emit_test(s1l,s1l); |
57871462 |
3547 | emit_cmovs_reg(alt,addr); |
3548 | } |
3549 | if(opcode[i]==0x11 && opcode2[i]==0x08 ) { |
3550 | if(source[i]&0x10000) // BC1T |
3551 | { |
3552 | //emit_movimm(ba[i],alt); |
3553 | //emit_movimm(start+i*4+8,addr); |
3554 | emit_mov2imm_compact(ba[i],alt,start+i*4+8,addr); |
3555 | emit_testimm(s1l,0x800000); |
3556 | emit_cmovne_reg(alt,addr); |
3557 | } |
3558 | else // BC1F |
3559 | { |
3560 | //emit_movimm(ba[i],addr); |
3561 | //emit_movimm(start+i*4+8,alt); |
3562 | emit_mov2imm_compact(ba[i],addr,start+i*4+8,alt); |
3563 | emit_testimm(s1l,0x800000); |
3564 | emit_cmovne_reg(alt,addr); |
3565 | } |
3566 | } |
643aeae3 |
3567 | emit_writeword(addr,&pcaddr); |
57871462 |
3568 | } |
3569 | else |
3570 | if(itype[i]==RJUMP) |
3571 | { |
3572 | int r=get_reg(branch_regs[i].regmap,rs1[i]); |
3573 | if(rs1[i]==rt1[i+1]||rs1[i]==rt2[i+1]) { |
3574 | r=get_reg(branch_regs[i].regmap,RTEMP); |
3575 | } |
643aeae3 |
3576 | emit_writeword(r,&pcaddr); |
57871462 |
3577 | } |
c43b5311 |
3578 | else {SysPrintf("Unknown branch type in do_ccstub\n");exit(1);} |
57871462 |
3579 | } |
3580 | // Update cycle count |
3581 | assert(branch_regs[i].regmap[HOST_CCREG]==CCREG||branch_regs[i].regmap[HOST_CCREG]==-1); |
643aeae3 |
3582 | if(stubs[n].a) emit_addimm(HOST_CCREG,CLOCK_ADJUST((signed int)stubs[n].a),HOST_CCREG); |
3583 | emit_call(cc_interrupt); |
3584 | if(stubs[n].a) emit_addimm(HOST_CCREG,-CLOCK_ADJUST((signed int)stubs[n].a),HOST_CCREG); |
b14b6a8f |
3585 | if(stubs[n].d==TAKEN) { |
ad49de89 |
3586 | if(internal_branch(ba[i])) |
57871462 |
3587 | load_needed_regs(branch_regs[i].regmap,regs[(ba[i]-start)>>2].regmap_entry); |
3588 | else if(itype[i]==RJUMP) { |
3589 | if(get_reg(branch_regs[i].regmap,RTEMP)>=0) |
643aeae3 |
3590 | emit_readword(&pcaddr,get_reg(branch_regs[i].regmap,RTEMP)); |
57871462 |
3591 | else |
3592 | emit_loadreg(rs1[i],get_reg(branch_regs[i].regmap,rs1[i])); |
3593 | } |
b14b6a8f |
3594 | }else if(stubs[n].d==NOTTAKEN) { |
57871462 |
3595 | if(i<slen-2) load_needed_regs(branch_regs[i].regmap,regmap_pre[i+2]); |
3596 | else load_all_regs(branch_regs[i].regmap); |
b14b6a8f |
3597 | }else if(stubs[n].d==NULLDS) { |
57871462 |
3598 | // Delay slot instruction is nullified ("likely" branch) |
3599 | if(i<slen-2) load_needed_regs(regs[i].regmap,regmap_pre[i+2]); |
3600 | else load_all_regs(regs[i].regmap); |
3601 | }else{ |
3602 | load_all_regs(branch_regs[i].regmap); |
3603 | } |
b14b6a8f |
3604 | emit_jmp(stubs[n].retaddr); |
57871462 |
3605 | } |
3606 | |
643aeae3 |
3607 | static void add_to_linker(void *addr, u_int target, int ext) |
57871462 |
3608 | { |
643aeae3 |
3609 | assert(linkcount < ARRAY_SIZE(link_addr)); |
3610 | link_addr[linkcount].addr = addr; |
3611 | link_addr[linkcount].target = target; |
3612 | link_addr[linkcount].ext = ext; |
57871462 |
3613 | linkcount++; |
3614 | } |
3615 | |
eba830cd |
3616 | static void ujump_assemble_write_ra(int i) |
3617 | { |
3618 | int rt; |
3619 | unsigned int return_address; |
3620 | rt=get_reg(branch_regs[i].regmap,31); |
3621 | 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]); |
3622 | //assert(rt>=0); |
3623 | return_address=start+i*4+8; |
3624 | if(rt>=0) { |
3625 | #ifdef USE_MINI_HT |
ad49de89 |
3626 | if(internal_branch(return_address)&&rt1[i+1]!=31) { |
eba830cd |
3627 | int temp=-1; // note: must be ds-safe |
3628 | #ifdef HOST_TEMPREG |
3629 | temp=HOST_TEMPREG; |
3630 | #endif |
3631 | if(temp>=0) do_miniht_insert(return_address,rt,temp); |
3632 | else emit_movimm(return_address,rt); |
3633 | } |
3634 | else |
3635 | #endif |
3636 | { |
3637 | #ifdef REG_PREFETCH |
9f51b4b9 |
3638 | if(temp>=0) |
eba830cd |
3639 | { |
643aeae3 |
3640 | if(i_regmap[temp]!=PTEMP) emit_movimm((uintptr_t)hash_table_get(return_address),temp); |
eba830cd |
3641 | } |
3642 | #endif |
3643 | emit_movimm(return_address,rt); // PC into link register |
3644 | #ifdef IMM_PREFETCH |
df4dc2b1 |
3645 | emit_prefetch(hash_table_get(return_address)); |
eba830cd |
3646 | #endif |
3647 | } |
3648 | } |
3649 | } |
3650 | |
57871462 |
3651 | void ujump_assemble(int i,struct regstat *i_regs) |
3652 | { |
eba830cd |
3653 | int ra_done=0; |
57871462 |
3654 | if(i==(ba[i]-start)>>2) assem_debug("idle loop\n"); |
3655 | address_generation(i+1,i_regs,regs[i].regmap_entry); |
3656 | #ifdef REG_PREFETCH |
3657 | int temp=get_reg(branch_regs[i].regmap,PTEMP); |
9f51b4b9 |
3658 | if(rt1[i]==31&&temp>=0) |
57871462 |
3659 | { |
581335b0 |
3660 | signed char *i_regmap=i_regs->regmap; |
57871462 |
3661 | int return_address=start+i*4+8; |
9f51b4b9 |
3662 | if(get_reg(branch_regs[i].regmap,31)>0) |
643aeae3 |
3663 | if(i_regmap[temp]==PTEMP) emit_movimm((uintptr_t)hash_table_get(return_address),temp); |
57871462 |
3664 | } |
3665 | #endif |
eba830cd |
3666 | if(rt1[i]==31&&(rt1[i]==rs1[i+1]||rt1[i]==rs2[i+1])) { |
3667 | ujump_assemble_write_ra(i); // writeback ra for DS |
3668 | ra_done=1; |
57871462 |
3669 | } |
4ef8f67d |
3670 | ds_assemble(i+1,i_regs); |
3671 | uint64_t bc_unneeded=branch_regs[i].u; |
4ef8f67d |
3672 | bc_unneeded|=1|(1LL<<rt1[i]); |
ad49de89 |
3673 | wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,bc_unneeded); |
3674 | load_regs(regs[i].regmap,branch_regs[i].regmap,CCREG,CCREG); |
eba830cd |
3675 | if(!ra_done&&rt1[i]==31) |
3676 | ujump_assemble_write_ra(i); |
57871462 |
3677 | int cc,adj; |
3678 | cc=get_reg(branch_regs[i].regmap,CCREG); |
3679 | assert(cc==HOST_CCREG); |
ad49de89 |
3680 | store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
3681 | #ifdef REG_PREFETCH |
3682 | if(rt1[i]==31&&temp>=0) emit_prefetchreg(temp); |
3683 | #endif |
3684 | do_cc(i,branch_regs[i].regmap,&adj,ba[i],TAKEN,0); |
2573466a |
3685 | if(adj) emit_addimm(cc,CLOCK_ADJUST(ccadj[i]+2-adj),cc); |
ad49de89 |
3686 | load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
3687 | if(internal_branch(ba[i])) |
57871462 |
3688 | assem_debug("branch: internal\n"); |
3689 | else |
3690 | assem_debug("branch: external\n"); |
ad49de89 |
3691 | if(internal_branch(ba[i])&&is_ds[(ba[i]-start)>>2]) { |
57871462 |
3692 | ds_assemble_entry(i); |
3693 | } |
3694 | else { |
ad49de89 |
3695 | add_to_linker(out,ba[i],internal_branch(ba[i])); |
57871462 |
3696 | emit_jmp(0); |
3697 | } |
3698 | } |
3699 | |
eba830cd |
3700 | static void rjump_assemble_write_ra(int i) |
3701 | { |
3702 | int rt,return_address; |
3703 | assert(rt1[i+1]!=rt1[i]); |
3704 | assert(rt2[i+1]!=rt1[i]); |
3705 | rt=get_reg(branch_regs[i].regmap,rt1[i]); |
3706 | 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]); |
3707 | assert(rt>=0); |
3708 | return_address=start+i*4+8; |
3709 | #ifdef REG_PREFETCH |
9f51b4b9 |
3710 | if(temp>=0) |
eba830cd |
3711 | { |
643aeae3 |
3712 | if(i_regmap[temp]!=PTEMP) emit_movimm((uintptr_t)hash_table_get(return_address),temp); |
eba830cd |
3713 | } |
3714 | #endif |
3715 | emit_movimm(return_address,rt); // PC into link register |
3716 | #ifdef IMM_PREFETCH |
df4dc2b1 |
3717 | emit_prefetch(hash_table_get(return_address)); |
eba830cd |
3718 | #endif |
3719 | } |
3720 | |
57871462 |
3721 | void rjump_assemble(int i,struct regstat *i_regs) |
3722 | { |
57871462 |
3723 | int temp; |
581335b0 |
3724 | int rs,cc; |
eba830cd |
3725 | int ra_done=0; |
57871462 |
3726 | rs=get_reg(branch_regs[i].regmap,rs1[i]); |
3727 | assert(rs>=0); |
3728 | if(rs1[i]==rt1[i+1]||rs1[i]==rt2[i+1]) { |
3729 | // Delay slot abuse, make a copy of the branch address register |
3730 | temp=get_reg(branch_regs[i].regmap,RTEMP); |
3731 | assert(temp>=0); |
3732 | assert(regs[i].regmap[temp]==RTEMP); |
3733 | emit_mov(rs,temp); |
3734 | rs=temp; |
3735 | } |
3736 | address_generation(i+1,i_regs,regs[i].regmap_entry); |
3737 | #ifdef REG_PREFETCH |
9f51b4b9 |
3738 | if(rt1[i]==31) |
57871462 |
3739 | { |
3740 | if((temp=get_reg(branch_regs[i].regmap,PTEMP))>=0) { |
581335b0 |
3741 | signed char *i_regmap=i_regs->regmap; |
57871462 |
3742 | int return_address=start+i*4+8; |
643aeae3 |
3743 | if(i_regmap[temp]==PTEMP) emit_movimm((uintptr_t)hash_table_get(return_address),temp); |
57871462 |
3744 | } |
3745 | } |
3746 | #endif |
3747 | #ifdef USE_MINI_HT |
3748 | if(rs1[i]==31) { |
3749 | int rh=get_reg(regs[i].regmap,RHASH); |
3750 | if(rh>=0) do_preload_rhash(rh); |
3751 | } |
3752 | #endif |
eba830cd |
3753 | if(rt1[i]!=0&&(rt1[i]==rs1[i+1]||rt1[i]==rs2[i+1])) { |
3754 | rjump_assemble_write_ra(i); |
3755 | ra_done=1; |
57871462 |
3756 | } |
d5910d5d |
3757 | ds_assemble(i+1,i_regs); |
3758 | uint64_t bc_unneeded=branch_regs[i].u; |
d5910d5d |
3759 | bc_unneeded|=1|(1LL<<rt1[i]); |
d5910d5d |
3760 | bc_unneeded&=~(1LL<<rs1[i]); |
ad49de89 |
3761 | wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,bc_unneeded); |
3762 | load_regs(regs[i].regmap,branch_regs[i].regmap,rs1[i],CCREG); |
eba830cd |
3763 | if(!ra_done&&rt1[i]!=0) |
3764 | rjump_assemble_write_ra(i); |
57871462 |
3765 | cc=get_reg(branch_regs[i].regmap,CCREG); |
3766 | assert(cc==HOST_CCREG); |
581335b0 |
3767 | (void)cc; |
57871462 |
3768 | #ifdef USE_MINI_HT |
3769 | int rh=get_reg(branch_regs[i].regmap,RHASH); |
3770 | int ht=get_reg(branch_regs[i].regmap,RHTBL); |
3771 | if(rs1[i]==31) { |
3772 | if(regs[i].regmap[rh]!=RHASH) do_preload_rhash(rh); |
3773 | do_preload_rhtbl(ht); |
3774 | do_rhash(rs,rh); |
3775 | } |
3776 | #endif |
ad49de89 |
3777 | store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,-1); |
57871462 |
3778 | #ifdef DESTRUCTIVE_WRITEBACK |
ad49de89 |
3779 | if((branch_regs[i].dirty>>rs)&1) { |
57871462 |
3780 | if(rs1[i]!=rt1[i+1]&&rs1[i]!=rt2[i+1]) { |
3781 | emit_loadreg(rs1[i],rs); |
3782 | } |
3783 | } |
3784 | #endif |
3785 | #ifdef REG_PREFETCH |
3786 | if(rt1[i]==31&&temp>=0) emit_prefetchreg(temp); |
3787 | #endif |
3788 | #ifdef USE_MINI_HT |
3789 | if(rs1[i]==31) { |
3790 | do_miniht_load(ht,rh); |
3791 | } |
3792 | #endif |
3793 | //do_cc(i,branch_regs[i].regmap,&adj,-1,TAKEN); |
3794 | //if(adj) emit_addimm(cc,2*(ccadj[i]+2-adj),cc); // ??? - Shouldn't happen |
3795 | //assert(adj==0); |
2573466a |
3796 | emit_addimm_and_set_flags(CLOCK_ADJUST(ccadj[i]+2),HOST_CCREG); |
b14b6a8f |
3797 | add_stub(CC_STUB,out,jump_vaddr_reg[rs],0,i,-1,TAKEN,0); |
911f2d55 |
3798 | if(itype[i+1]==COP0&&(source[i+1]&0x3f)==0x10) |
3799 | // special case for RFE |
3800 | emit_jmp(0); |
3801 | else |
71e490c5 |
3802 | emit_jns(0); |
ad49de89 |
3803 | //load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,-1); |
57871462 |
3804 | #ifdef USE_MINI_HT |
3805 | if(rs1[i]==31) { |
3806 | do_miniht_jump(rs,rh,ht); |
3807 | } |
3808 | else |
3809 | #endif |
3810 | { |
57871462 |
3811 | emit_jmp(jump_vaddr_reg[rs]); |
3812 | } |
57871462 |
3813 | #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
3814 | if(rt1[i]!=31&&i<slen-2&&(((u_int)out)&7)) emit_mov(13,13); |
3815 | #endif |
3816 | } |
3817 | |
3818 | void cjump_assemble(int i,struct regstat *i_regs) |
3819 | { |
3820 | signed char *i_regmap=i_regs->regmap; |
3821 | int cc; |
3822 | int match; |
ad49de89 |
3823 | match=match_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
3824 | assem_debug("match=%d\n",match); |
ad49de89 |
3825 | int s1l,s2l; |
57871462 |
3826 | int unconditional=0,nop=0; |
57871462 |
3827 | int invert=0; |
ad49de89 |
3828 | int internal=internal_branch(ba[i]); |
57871462 |
3829 | if(i==(ba[i]-start)>>2) assem_debug("idle loop\n"); |
57871462 |
3830 | if(!match) invert=1; |
3831 | #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
3832 | if(i>(ba[i]-start)>>2) invert=1; |
3833 | #endif |
9f51b4b9 |
3834 | |
e1190b87 |
3835 | if(ooo[i]) { |
57871462 |
3836 | s1l=get_reg(branch_regs[i].regmap,rs1[i]); |
57871462 |
3837 | s2l=get_reg(branch_regs[i].regmap,rs2[i]); |
57871462 |
3838 | } |
3839 | else { |
3840 | s1l=get_reg(i_regmap,rs1[i]); |
57871462 |
3841 | s2l=get_reg(i_regmap,rs2[i]); |
57871462 |
3842 | } |
3843 | if(rs1[i]==0&&rs2[i]==0) |
3844 | { |
3845 | if(opcode[i]&1) nop=1; |
3846 | else unconditional=1; |
3847 | //assert(opcode[i]!=5); |
3848 | //assert(opcode[i]!=7); |
3849 | //assert(opcode[i]!=0x15); |
3850 | //assert(opcode[i]!=0x17); |
3851 | } |
3852 | else if(rs1[i]==0) |
3853 | { |
ad49de89 |
3854 | s1l=s2l; |
3855 | s2l=-1; |
57871462 |
3856 | } |
3857 | else if(rs2[i]==0) |
3858 | { |
ad49de89 |
3859 | s2l=-1; |
57871462 |
3860 | } |
3861 | |
e1190b87 |
3862 | if(ooo[i]) { |
57871462 |
3863 | // Out of order execution (delay slot first) |
3864 | //printf("OOOE\n"); |
3865 | address_generation(i+1,i_regs,regs[i].regmap_entry); |
3866 | ds_assemble(i+1,i_regs); |
3867 | int adj; |
3868 | uint64_t bc_unneeded=branch_regs[i].u; |
57871462 |
3869 | bc_unneeded&=~((1LL<<rs1[i])|(1LL<<rs2[i])); |
57871462 |
3870 | bc_unneeded|=1; |
ad49de89 |
3871 | wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,bc_unneeded); |
3872 | load_regs(regs[i].regmap,branch_regs[i].regmap,rs1[i],rs2[i]); |
3873 | load_regs(regs[i].regmap,branch_regs[i].regmap,CCREG,CCREG); |
57871462 |
3874 | cc=get_reg(branch_regs[i].regmap,CCREG); |
3875 | assert(cc==HOST_CCREG); |
9f51b4b9 |
3876 | if(unconditional) |
ad49de89 |
3877 | store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
3878 | //do_cc(i,branch_regs[i].regmap,&adj,unconditional?ba[i]:-1,unconditional); |
3879 | //assem_debug("cycle count (adj)\n"); |
3880 | if(unconditional) { |
3881 | do_cc(i,branch_regs[i].regmap,&adj,ba[i],TAKEN,0); |
3882 | if(i!=(ba[i]-start)>>2 || source[i+1]!=0) { |
2573466a |
3883 | if(adj) emit_addimm(cc,CLOCK_ADJUST(ccadj[i]+2-adj),cc); |
ad49de89 |
3884 | load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
3885 | if(internal) |
3886 | assem_debug("branch: internal\n"); |
3887 | else |
3888 | assem_debug("branch: external\n"); |
3889 | if(internal&&is_ds[(ba[i]-start)>>2]) { |
3890 | ds_assemble_entry(i); |
3891 | } |
3892 | else { |
643aeae3 |
3893 | add_to_linker(out,ba[i],internal); |
57871462 |
3894 | emit_jmp(0); |
3895 | } |
3896 | #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
3897 | if(((u_int)out)&7) emit_addnop(0); |
3898 | #endif |
3899 | } |
3900 | } |
3901 | else if(nop) { |
2573466a |
3902 | emit_addimm_and_set_flags(CLOCK_ADJUST(ccadj[i]+2),cc); |
b14b6a8f |
3903 | void *jaddr=out; |
57871462 |
3904 | emit_jns(0); |
b14b6a8f |
3905 | add_stub(CC_STUB,jaddr,out,0,i,start+i*4+8,NOTTAKEN,0); |
57871462 |
3906 | } |
3907 | else { |
df4dc2b1 |
3908 | void *taken = NULL, *nottaken = NULL, *nottaken1 = NULL; |
57871462 |
3909 | do_cc(i,branch_regs[i].regmap,&adj,-1,0,invert); |
2573466a |
3910 | if(adj&&!invert) emit_addimm(cc,CLOCK_ADJUST(ccadj[i]+2-adj),cc); |
9f51b4b9 |
3911 | |
57871462 |
3912 | //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]); |
3913 | assert(s1l>=0); |
3914 | if(opcode[i]==4) // BEQ |
3915 | { |
3916 | if(s2l>=0) emit_cmp(s1l,s2l); |
3917 | else emit_test(s1l,s1l); |
3918 | if(invert){ |
df4dc2b1 |
3919 | nottaken=out; |
643aeae3 |
3920 | emit_jne((void *)1l); |
57871462 |
3921 | }else{ |
643aeae3 |
3922 | add_to_linker(out,ba[i],internal); |
57871462 |
3923 | emit_jeq(0); |
3924 | } |
3925 | } |
3926 | if(opcode[i]==5) // BNE |
3927 | { |
3928 | if(s2l>=0) emit_cmp(s1l,s2l); |
3929 | else emit_test(s1l,s1l); |
3930 | if(invert){ |
df4dc2b1 |
3931 | nottaken=out; |
57871462 |
3932 | emit_jeq(1); |
3933 | }else{ |
643aeae3 |
3934 | add_to_linker(out,ba[i],internal); |
57871462 |
3935 | emit_jne(0); |
3936 | } |
3937 | } |
3938 | if(opcode[i]==6) // BLEZ |
3939 | { |
3940 | emit_cmpimm(s1l,1); |
3941 | if(invert){ |
df4dc2b1 |
3942 | nottaken=out; |
57871462 |
3943 | emit_jge(1); |
3944 | }else{ |
643aeae3 |
3945 | add_to_linker(out,ba[i],internal); |
57871462 |
3946 | emit_jl(0); |
3947 | } |
3948 | } |
3949 | if(opcode[i]==7) // BGTZ |
3950 | { |
3951 | emit_cmpimm(s1l,1); |
3952 | if(invert){ |
df4dc2b1 |
3953 | nottaken=out; |
57871462 |
3954 | emit_jl(1); |
3955 | }else{ |
643aeae3 |
3956 | add_to_linker(out,ba[i],internal); |
57871462 |
3957 | emit_jge(0); |
3958 | } |
3959 | } |
3960 | if(invert) { |
df4dc2b1 |
3961 | if(taken) set_jump_target(taken, out); |
57871462 |
3962 | #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
3963 | if(match&&(!internal||!is_ds[(ba[i]-start)>>2])) { |
3964 | if(adj) { |
2573466a |
3965 | emit_addimm(cc,-CLOCK_ADJUST(adj),cc); |
643aeae3 |
3966 | add_to_linker(out,ba[i],internal); |
57871462 |
3967 | }else{ |
3968 | emit_addnop(13); |
643aeae3 |
3969 | add_to_linker(out,ba[i],internal*2); |
57871462 |
3970 | } |
3971 | emit_jmp(0); |
3972 | }else |
3973 | #endif |
3974 | { |
2573466a |
3975 | if(adj) emit_addimm(cc,-CLOCK_ADJUST(adj),cc); |
ad49de89 |
3976 | store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
3977 | load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
3978 | if(internal) |
3979 | assem_debug("branch: internal\n"); |
3980 | else |
3981 | assem_debug("branch: external\n"); |
3982 | if(internal&&is_ds[(ba[i]-start)>>2]) { |
3983 | ds_assemble_entry(i); |
3984 | } |
3985 | else { |
643aeae3 |
3986 | add_to_linker(out,ba[i],internal); |
57871462 |
3987 | emit_jmp(0); |
3988 | } |
3989 | } |
df4dc2b1 |
3990 | set_jump_target(nottaken, out); |
57871462 |
3991 | } |
3992 | |
df4dc2b1 |
3993 | if(nottaken1) set_jump_target(nottaken1, out); |
57871462 |
3994 | if(adj) { |
2573466a |
3995 | if(!invert) emit_addimm(cc,CLOCK_ADJUST(adj),cc); |
57871462 |
3996 | } |
3997 | } // (!unconditional) |
3998 | } // if(ooo) |
3999 | else |
4000 | { |
4001 | // In-order execution (branch first) |
4002 | //if(likely[i]) printf("IOL\n"); |
4003 | //else |
4004 | //printf("IOE\n"); |
df4dc2b1 |
4005 | void *taken = NULL, *nottaken = NULL, *nottaken1 = NULL; |
57871462 |
4006 | if(!unconditional&&!nop) { |
57871462 |
4007 | //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]); |
4008 | assert(s1l>=0); |
4009 | if((opcode[i]&0x2f)==4) // BEQ |
4010 | { |
4011 | if(s2l>=0) emit_cmp(s1l,s2l); |
4012 | else emit_test(s1l,s1l); |
df4dc2b1 |
4013 | nottaken=out; |
643aeae3 |
4014 | emit_jne((void *)2l); |
57871462 |
4015 | } |
4016 | if((opcode[i]&0x2f)==5) // BNE |
4017 | { |
4018 | if(s2l>=0) emit_cmp(s1l,s2l); |
4019 | else emit_test(s1l,s1l); |
df4dc2b1 |
4020 | nottaken=out; |
57871462 |
4021 | emit_jeq(2); |
4022 | } |
4023 | if((opcode[i]&0x2f)==6) // BLEZ |
4024 | { |
4025 | emit_cmpimm(s1l,1); |
df4dc2b1 |
4026 | nottaken=out; |
57871462 |
4027 | emit_jge(2); |
4028 | } |
4029 | if((opcode[i]&0x2f)==7) // BGTZ |
4030 | { |
4031 | emit_cmpimm(s1l,1); |
df4dc2b1 |
4032 | nottaken=out; |
57871462 |
4033 | emit_jl(2); |
4034 | } |
4035 | } // if(!unconditional) |
4036 | int adj; |
4037 | uint64_t ds_unneeded=branch_regs[i].u; |
57871462 |
4038 | ds_unneeded&=~((1LL<<rs1[i+1])|(1LL<<rs2[i+1])); |
57871462 |
4039 | ds_unneeded|=1; |
57871462 |
4040 | // branch taken |
4041 | if(!nop) { |
df4dc2b1 |
4042 | if(taken) set_jump_target(taken, out); |
57871462 |
4043 | assem_debug("1:\n"); |
ad49de89 |
4044 | wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,ds_unneeded); |
57871462 |
4045 | // load regs |
ad49de89 |
4046 | load_regs(regs[i].regmap,branch_regs[i].regmap,rs1[i+1],rs2[i+1]); |
57871462 |
4047 | address_generation(i+1,&branch_regs[i],0); |
ad49de89 |
4048 | load_regs(regs[i].regmap,branch_regs[i].regmap,CCREG,INVCP); |
57871462 |
4049 | ds_assemble(i+1,&branch_regs[i]); |
4050 | cc=get_reg(branch_regs[i].regmap,CCREG); |
4051 | if(cc==-1) { |
4052 | emit_loadreg(CCREG,cc=HOST_CCREG); |
4053 | // CHECK: Is the following instruction (fall thru) allocated ok? |
4054 | } |
4055 | assert(cc==HOST_CCREG); |
ad49de89 |
4056 | store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
4057 | do_cc(i,i_regmap,&adj,ba[i],TAKEN,0); |
4058 | assem_debug("cycle count (adj)\n"); |
2573466a |
4059 | if(adj) emit_addimm(cc,CLOCK_ADJUST(ccadj[i]+2-adj),cc); |
ad49de89 |
4060 | load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
4061 | if(internal) |
4062 | assem_debug("branch: internal\n"); |
4063 | else |
4064 | assem_debug("branch: external\n"); |
4065 | if(internal&&is_ds[(ba[i]-start)>>2]) { |
4066 | ds_assemble_entry(i); |
4067 | } |
4068 | else { |
643aeae3 |
4069 | add_to_linker(out,ba[i],internal); |
57871462 |
4070 | emit_jmp(0); |
4071 | } |
4072 | } |
4073 | // branch not taken |
57871462 |
4074 | if(!unconditional) { |
df4dc2b1 |
4075 | if(nottaken1) set_jump_target(nottaken1, out); |
4076 | set_jump_target(nottaken, out); |
57871462 |
4077 | assem_debug("2:\n"); |
4078 | if(!likely[i]) { |
ad49de89 |
4079 | wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,ds_unneeded); |
4080 | load_regs(regs[i].regmap,branch_regs[i].regmap,rs1[i+1],rs2[i+1]); |
57871462 |
4081 | address_generation(i+1,&branch_regs[i],0); |
ad49de89 |
4082 | load_regs(regs[i].regmap,branch_regs[i].regmap,CCREG,CCREG); |
57871462 |
4083 | ds_assemble(i+1,&branch_regs[i]); |
4084 | } |
4085 | cc=get_reg(branch_regs[i].regmap,CCREG); |
4086 | if(cc==-1&&!likely[i]) { |
4087 | // Cycle count isn't in a register, temporarily load it then write it out |
4088 | emit_loadreg(CCREG,HOST_CCREG); |
2573466a |
4089 | emit_addimm_and_set_flags(CLOCK_ADJUST(ccadj[i]+2),HOST_CCREG); |
b14b6a8f |
4090 | void *jaddr=out; |
57871462 |
4091 | emit_jns(0); |
b14b6a8f |
4092 | add_stub(CC_STUB,jaddr,out,0,i,start+i*4+8,NOTTAKEN,0); |
57871462 |
4093 | emit_storereg(CCREG,HOST_CCREG); |
4094 | } |
4095 | else{ |
4096 | cc=get_reg(i_regmap,CCREG); |
4097 | assert(cc==HOST_CCREG); |
2573466a |
4098 | emit_addimm_and_set_flags(CLOCK_ADJUST(ccadj[i]+2),cc); |
b14b6a8f |
4099 | void *jaddr=out; |
57871462 |
4100 | emit_jns(0); |
b14b6a8f |
4101 | add_stub(CC_STUB,jaddr,out,0,i,start+i*4+8,likely[i]?NULLDS:NOTTAKEN,0); |
57871462 |
4102 | } |
4103 | } |
4104 | } |
4105 | } |
4106 | |
4107 | void sjump_assemble(int i,struct regstat *i_regs) |
4108 | { |
4109 | signed char *i_regmap=i_regs->regmap; |
4110 | int cc; |
4111 | int match; |
ad49de89 |
4112 | match=match_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
4113 | assem_debug("smatch=%d\n",match); |
ad49de89 |
4114 | int s1l; |
57871462 |
4115 | int unconditional=0,nevertaken=0; |
57871462 |
4116 | int invert=0; |
ad49de89 |
4117 | int internal=internal_branch(ba[i]); |
57871462 |
4118 | if(i==(ba[i]-start)>>2) assem_debug("idle loop\n"); |
57871462 |
4119 | if(!match) invert=1; |
4120 | #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
4121 | if(i>(ba[i]-start)>>2) invert=1; |
4122 | #endif |
4123 | |
4124 | //if(opcode2[i]>=0x10) return; // FIXME (BxxZAL) |
df894a3a |
4125 | //assert(opcode2[i]<0x10||rs1[i]==0); // FIXME (BxxZAL) |
57871462 |
4126 | |
e1190b87 |
4127 | if(ooo[i]) { |
57871462 |
4128 | s1l=get_reg(branch_regs[i].regmap,rs1[i]); |
57871462 |
4129 | } |
4130 | else { |
4131 | s1l=get_reg(i_regmap,rs1[i]); |
57871462 |
4132 | } |
4133 | if(rs1[i]==0) |
4134 | { |
4135 | if(opcode2[i]&1) unconditional=1; |
4136 | else nevertaken=1; |
4137 | // These are never taken (r0 is never less than zero) |
4138 | //assert(opcode2[i]!=0); |
4139 | //assert(opcode2[i]!=2); |
4140 | //assert(opcode2[i]!=0x10); |
4141 | //assert(opcode2[i]!=0x12); |
4142 | } |
57871462 |
4143 | |
e1190b87 |
4144 | if(ooo[i]) { |
57871462 |
4145 | // Out of order execution (delay slot first) |
4146 | //printf("OOOE\n"); |
4147 | address_generation(i+1,i_regs,regs[i].regmap_entry); |
4148 | ds_assemble(i+1,i_regs); |
4149 | int adj; |
4150 | uint64_t bc_unneeded=branch_regs[i].u; |
57871462 |
4151 | bc_unneeded&=~((1LL<<rs1[i])|(1LL<<rs2[i])); |
57871462 |
4152 | bc_unneeded|=1; |
ad49de89 |
4153 | wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,bc_unneeded); |
4154 | load_regs(regs[i].regmap,branch_regs[i].regmap,rs1[i],rs1[i]); |
4155 | load_regs(regs[i].regmap,branch_regs[i].regmap,CCREG,CCREG); |
57871462 |
4156 | if(rt1[i]==31) { |
4157 | int rt,return_address; |
57871462 |
4158 | rt=get_reg(branch_regs[i].regmap,31); |
4159 | 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]); |
4160 | if(rt>=0) { |
4161 | // Save the PC even if the branch is not taken |
4162 | return_address=start+i*4+8; |
4163 | emit_movimm(return_address,rt); // PC into link register |
4164 | #ifdef IMM_PREFETCH |
df4dc2b1 |
4165 | if(!nevertaken) emit_prefetch(hash_table_get(return_address)); |
57871462 |
4166 | #endif |
4167 | } |
4168 | } |
4169 | cc=get_reg(branch_regs[i].regmap,CCREG); |
4170 | assert(cc==HOST_CCREG); |
9f51b4b9 |
4171 | if(unconditional) |
ad49de89 |
4172 | store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
4173 | //do_cc(i,branch_regs[i].regmap,&adj,unconditional?ba[i]:-1,unconditional); |
4174 | assem_debug("cycle count (adj)\n"); |
4175 | if(unconditional) { |
4176 | do_cc(i,branch_regs[i].regmap,&adj,ba[i],TAKEN,0); |
4177 | if(i!=(ba[i]-start)>>2 || source[i+1]!=0) { |
2573466a |
4178 | if(adj) emit_addimm(cc,CLOCK_ADJUST(ccadj[i]+2-adj),cc); |
ad49de89 |
4179 | load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
4180 | if(internal) |
4181 | assem_debug("branch: internal\n"); |
4182 | else |
4183 | assem_debug("branch: external\n"); |
4184 | if(internal&&is_ds[(ba[i]-start)>>2]) { |
4185 | ds_assemble_entry(i); |
4186 | } |
4187 | else { |
643aeae3 |
4188 | add_to_linker(out,ba[i],internal); |
57871462 |
4189 | emit_jmp(0); |
4190 | } |
4191 | #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
4192 | if(((u_int)out)&7) emit_addnop(0); |
4193 | #endif |
4194 | } |
4195 | } |
4196 | else if(nevertaken) { |
2573466a |
4197 | emit_addimm_and_set_flags(CLOCK_ADJUST(ccadj[i]+2),cc); |
b14b6a8f |
4198 | void *jaddr=out; |
57871462 |
4199 | emit_jns(0); |
b14b6a8f |
4200 | add_stub(CC_STUB,jaddr,out,0,i,start+i*4+8,NOTTAKEN,0); |
57871462 |
4201 | } |
4202 | else { |
df4dc2b1 |
4203 | void *nottaken = NULL; |
57871462 |
4204 | do_cc(i,branch_regs[i].regmap,&adj,-1,0,invert); |
2573466a |
4205 | if(adj&&!invert) emit_addimm(cc,CLOCK_ADJUST(ccadj[i]+2-adj),cc); |
57871462 |
4206 | { |
4207 | assert(s1l>=0); |
df894a3a |
4208 | if((opcode2[i]&0xf)==0) // BLTZ/BLTZAL |
57871462 |
4209 | { |
4210 | emit_test(s1l,s1l); |
4211 | if(invert){ |
df4dc2b1 |
4212 | nottaken=out; |
57871462 |
4213 | emit_jns(1); |
4214 | }else{ |
643aeae3 |
4215 | add_to_linker(out,ba[i],internal); |
57871462 |
4216 | emit_js(0); |
4217 | } |
4218 | } |
df894a3a |
4219 | if((opcode2[i]&0xf)==1) // BGEZ/BLTZAL |
57871462 |
4220 | { |
4221 | emit_test(s1l,s1l); |
4222 | if(invert){ |
df4dc2b1 |
4223 | nottaken=out; |
57871462 |
4224 | emit_js(1); |
4225 | }else{ |
643aeae3 |
4226 | add_to_linker(out,ba[i],internal); |
57871462 |
4227 | emit_jns(0); |
4228 | } |
4229 | } |
ad49de89 |
4230 | } |
9f51b4b9 |
4231 | |
57871462 |
4232 | if(invert) { |
4233 | #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
4234 | if(match&&(!internal||!is_ds[(ba[i]-start)>>2])) { |
4235 | if(adj) { |
2573466a |
4236 | emit_addimm(cc,-CLOCK_ADJUST(adj),cc); |
643aeae3 |
4237 | add_to_linker(out,ba[i],internal); |
57871462 |
4238 | }else{ |
4239 | emit_addnop(13); |
643aeae3 |
4240 | add_to_linker(out,ba[i],internal*2); |
57871462 |
4241 | } |
4242 | emit_jmp(0); |
4243 | }else |
4244 | #endif |
4245 | { |
2573466a |
4246 | if(adj) emit_addimm(cc,-CLOCK_ADJUST(adj),cc); |
ad49de89 |
4247 | store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
4248 | load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
4249 | if(internal) |
4250 | assem_debug("branch: internal\n"); |
4251 | else |
4252 | assem_debug("branch: external\n"); |
4253 | if(internal&&is_ds[(ba[i]-start)>>2]) { |
4254 | ds_assemble_entry(i); |
4255 | } |
4256 | else { |
643aeae3 |
4257 | add_to_linker(out,ba[i],internal); |
57871462 |
4258 | emit_jmp(0); |
4259 | } |
4260 | } |
df4dc2b1 |
4261 | set_jump_target(nottaken, out); |
57871462 |
4262 | } |
4263 | |
4264 | if(adj) { |
2573466a |
4265 | if(!invert) emit_addimm(cc,CLOCK_ADJUST(adj),cc); |
57871462 |
4266 | } |
4267 | } // (!unconditional) |
4268 | } // if(ooo) |
4269 | else |
4270 | { |
4271 | // In-order execution (branch first) |
4272 | //printf("IOE\n"); |
df4dc2b1 |
4273 | void *nottaken = NULL; |
a6491170 |
4274 | if(rt1[i]==31) { |
4275 | int rt,return_address; |
a6491170 |
4276 | rt=get_reg(branch_regs[i].regmap,31); |
4277 | if(rt>=0) { |
4278 | // Save the PC even if the branch is not taken |
4279 | return_address=start+i*4+8; |
4280 | emit_movimm(return_address,rt); // PC into link register |
4281 | #ifdef IMM_PREFETCH |
df4dc2b1 |
4282 | emit_prefetch(hash_table_get(return_address)); |
a6491170 |
4283 | #endif |
4284 | } |
4285 | } |
57871462 |
4286 | if(!unconditional) { |
4287 | //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 |
4288 | assert(s1l>=0); |
a6491170 |
4289 | if((opcode2[i]&0x0d)==0) // BLTZ/BLTZL/BLTZAL/BLTZALL |
57871462 |
4290 | { |
4291 | emit_test(s1l,s1l); |
df4dc2b1 |
4292 | nottaken=out; |
57871462 |
4293 | emit_jns(1); |
4294 | } |
a6491170 |
4295 | if((opcode2[i]&0x0d)==1) // BGEZ/BGEZL/BGEZAL/BGEZALL |
57871462 |
4296 | { |
4297 | emit_test(s1l,s1l); |
df4dc2b1 |
4298 | nottaken=out; |
57871462 |
4299 | emit_js(1); |
4300 | } |
57871462 |
4301 | } // if(!unconditional) |
4302 | int adj; |
4303 | uint64_t ds_unneeded=branch_regs[i].u; |
57871462 |
4304 | ds_unneeded&=~((1LL<<rs1[i+1])|(1LL<<rs2[i+1])); |
57871462 |
4305 | ds_unneeded|=1; |
57871462 |
4306 | // branch taken |
4307 | if(!nevertaken) { |
4308 | //assem_debug("1:\n"); |
ad49de89 |
4309 | wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,ds_unneeded); |
57871462 |
4310 | // load regs |
ad49de89 |
4311 | load_regs(regs[i].regmap,branch_regs[i].regmap,rs1[i+1],rs2[i+1]); |
57871462 |
4312 | address_generation(i+1,&branch_regs[i],0); |
ad49de89 |
4313 | load_regs(regs[i].regmap,branch_regs[i].regmap,CCREG,INVCP); |
57871462 |
4314 | ds_assemble(i+1,&branch_regs[i]); |
4315 | cc=get_reg(branch_regs[i].regmap,CCREG); |
4316 | if(cc==-1) { |
4317 | emit_loadreg(CCREG,cc=HOST_CCREG); |
4318 | // CHECK: Is the following instruction (fall thru) allocated ok? |
4319 | } |
4320 | assert(cc==HOST_CCREG); |
ad49de89 |
4321 | store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
4322 | do_cc(i,i_regmap,&adj,ba[i],TAKEN,0); |
4323 | assem_debug("cycle count (adj)\n"); |
2573466a |
4324 | if(adj) emit_addimm(cc,CLOCK_ADJUST(ccadj[i]+2-adj),cc); |
ad49de89 |
4325 | load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,ba[i]); |
57871462 |
4326 | if(internal) |
4327 | assem_debug("branch: internal\n"); |
4328 | else |
4329 | assem_debug("branch: external\n"); |
4330 | if(internal&&is_ds[(ba[i]-start)>>2]) { |
4331 | ds_assemble_entry(i); |
4332 | } |
4333 | else { |
643aeae3 |
4334 | add_to_linker(out,ba[i],internal); |
57871462 |
4335 | emit_jmp(0); |
4336 | } |
4337 | } |
4338 | // branch not taken |
57871462 |
4339 | if(!unconditional) { |
df4dc2b1 |
4340 | set_jump_target(nottaken, out); |
57871462 |
4341 | assem_debug("1:\n"); |
4342 | if(!likely[i]) { |
ad49de89 |
4343 | wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,ds_unneeded); |
4344 | load_regs(regs[i].regmap,branch_regs[i].regmap,rs1[i+1],rs2[i+1]); |
57871462 |
4345 | address_generation(i+1,&branch_regs[i],0); |
ad49de89 |
4346 | load_regs(regs[i].regmap,branch_regs[i].regmap,CCREG,CCREG); |
57871462 |
4347 | ds_assemble(i+1,&branch_regs[i]); |
4348 | } |
4349 | cc=get_reg(branch_regs[i].regmap,CCREG); |
4350 | if(cc==-1&&!likely[i]) { |
4351 | // Cycle count isn't in a register, temporarily load it then write it out |
4352 | emit_loadreg(CCREG,HOST_CCREG); |
2573466a |
4353 | emit_addimm_and_set_flags(CLOCK_ADJUST(ccadj[i]+2),HOST_CCREG); |
b14b6a8f |
4354 | void *jaddr=out; |
57871462 |
4355 | emit_jns(0); |
b14b6a8f |
4356 | add_stub(CC_STUB,jaddr,out,0,i,start+i*4+8,NOTTAKEN,0); |
57871462 |
4357 | emit_storereg(CCREG,HOST_CCREG); |
4358 | } |
4359 | else{ |
4360 | cc=get_reg(i_regmap,CCREG); |
4361 | assert(cc==HOST_CCREG); |
2573466a |
4362 | emit_addimm_and_set_flags(CLOCK_ADJUST(ccadj[i]+2),cc); |
b14b6a8f |
4363 | void *jaddr=out; |
57871462 |
4364 | emit_jns(0); |
b14b6a8f |
4365 | add_stub(CC_STUB,jaddr,out,0,i,start+i*4+8,likely[i]?NULLDS:NOTTAKEN,0); |
57871462 |
4366 | } |
4367 | } |
4368 | } |
4369 | } |
4370 | |
4371 | static void pagespan_assemble(int i,struct regstat *i_regs) |
4372 | { |
4373 | int s1l=get_reg(i_regs->regmap,rs1[i]); |
57871462 |
4374 | int s2l=get_reg(i_regs->regmap,rs2[i]); |
df4dc2b1 |
4375 | void *taken = NULL; |
4376 | void *nottaken = NULL; |
57871462 |
4377 | int unconditional=0; |
4378 | if(rs1[i]==0) |
4379 | { |
ad49de89 |
4380 | s1l=s2l; |
4381 | s2l=-1; |
57871462 |
4382 | } |
4383 | else if(rs2[i]==0) |
4384 | { |
ad49de89 |
4385 | s2l=-1; |
57871462 |
4386 | } |
4387 | int hr=0; |
581335b0 |
4388 | int addr=-1,alt=-1,ntaddr=-1; |
57871462 |
4389 | if(i_regs->regmap[HOST_BTREG]<0) {addr=HOST_BTREG;} |
4390 | else { |
4391 | while(hr<HOST_REGS) |
4392 | { |
4393 | if(hr!=EXCLUDE_REG && hr!=HOST_CCREG && |
4394 | (i_regs->regmap[hr]&63)!=rs1[i] && |
4395 | (i_regs->regmap[hr]&63)!=rs2[i] ) |
4396 | { |
4397 | addr=hr++;break; |
4398 | } |
4399 | hr++; |
4400 | } |
4401 | } |
4402 | while(hr<HOST_REGS) |
4403 | { |
4404 | if(hr!=EXCLUDE_REG && hr!=HOST_CCREG && hr!=HOST_BTREG && |
4405 | (i_regs->regmap[hr]&63)!=rs1[i] && |
4406 | (i_regs->regmap[hr]&63)!=rs2[i] ) |
4407 | { |
4408 | alt=hr++;break; |
4409 | } |
4410 | hr++; |
4411 | } |
4412 | if((opcode[i]&0x2E)==6) // BLEZ/BGTZ needs another register |
4413 | { |
4414 | while(hr<HOST_REGS) |
4415 | { |
4416 | if(hr!=EXCLUDE_REG && hr!=HOST_CCREG && hr!=HOST_BTREG && |
4417 | (i_regs->regmap[hr]&63)!=rs1[i] && |
4418 | (i_regs->regmap[hr]&63)!=rs2[i] ) |
4419 | { |
4420 | ntaddr=hr;break; |
4421 | } |
4422 | hr++; |
4423 | } |
4424 | } |
4425 | assert(hr<HOST_REGS); |
4426 | if((opcode[i]&0x2e)==4||opcode[i]==0x11) { // BEQ/BNE/BEQL/BNEL/BC1 |
ad49de89 |
4427 | load_regs(regs[i].regmap_entry,regs[i].regmap,CCREG,CCREG); |
57871462 |
4428 | } |
2573466a |
4429 | emit_addimm(HOST_CCREG,CLOCK_ADJUST(ccadj[i]+2),HOST_CCREG); |
57871462 |
4430 | if(opcode[i]==2) // J |
4431 | { |
4432 | unconditional=1; |
4433 | } |
4434 | if(opcode[i]==3) // JAL |
4435 | { |
4436 | // TODO: mini_ht |
4437 | int rt=get_reg(i_regs->regmap,31); |
4438 | emit_movimm(start+i*4+8,rt); |
4439 | unconditional=1; |
4440 | } |
4441 | if(opcode[i]==0&&(opcode2[i]&0x3E)==8) // JR/JALR |
4442 | { |
4443 | emit_mov(s1l,addr); |
4444 | if(opcode2[i]==9) // JALR |
4445 | { |
5067f341 |
4446 | int rt=get_reg(i_regs->regmap,rt1[i]); |
57871462 |
4447 | emit_movimm(start+i*4+8,rt); |
4448 | } |
4449 | } |
4450 | if((opcode[i]&0x3f)==4) // BEQ |
4451 | { |
4452 | if(rs1[i]==rs2[i]) |
4453 | { |
4454 | unconditional=1; |
4455 | } |
4456 | else |
4457 | #ifdef HAVE_CMOV_IMM |
ad49de89 |
4458 | if(1) { |
57871462 |
4459 | if(s2l>=0) emit_cmp(s1l,s2l); |
4460 | else emit_test(s1l,s1l); |
4461 | emit_cmov2imm_e_ne_compact(ba[i],start+i*4+8,addr); |
4462 | } |
4463 | else |
4464 | #endif |
4465 | { |
4466 | assert(s1l>=0); |
4467 | emit_mov2imm_compact(ba[i],addr,start+i*4+8,alt); |
57871462 |
4468 | if(s2l>=0) emit_cmp(s1l,s2l); |
4469 | else emit_test(s1l,s1l); |
4470 | emit_cmovne_reg(alt,addr); |
4471 | } |
4472 | } |
4473 | if((opcode[i]&0x3f)==5) // BNE |
4474 | { |
4475 | #ifdef HAVE_CMOV_IMM |
ad49de89 |
4476 | if(s2l>=0) emit_cmp(s1l,s2l); |
4477 | else emit_test(s1l,s1l); |
4478 | emit_cmov2imm_e_ne_compact(start+i*4+8,ba[i],addr); |
4479 | #else |
4480 | assert(s1l>=0); |
4481 | emit_mov2imm_compact(start+i*4+8,addr,ba[i],alt); |
4482 | if(s2l>=0) emit_cmp(s1l,s2l); |
4483 | else emit_test(s1l,s1l); |
4484 | emit_cmovne_reg(alt,addr); |
57871462 |
4485 | #endif |
57871462 |
4486 | } |
4487 | if((opcode[i]&0x3f)==0x14) // BEQL |
4488 | { |
57871462 |
4489 | if(s2l>=0) emit_cmp(s1l,s2l); |
4490 | else emit_test(s1l,s1l); |
df4dc2b1 |
4491 | if(nottaken) set_jump_target(nottaken, out); |
4492 | nottaken=out; |
57871462 |
4493 | emit_jne(0); |
4494 | } |
4495 | if((opcode[i]&0x3f)==0x15) // BNEL |
4496 | { |
57871462 |
4497 | if(s2l>=0) emit_cmp(s1l,s2l); |
4498 | else emit_test(s1l,s1l); |
df4dc2b1 |
4499 | nottaken=out; |
57871462 |
4500 | emit_jeq(0); |
df4dc2b1 |
4501 | if(taken) set_jump_target(taken, out); |
57871462 |
4502 | } |
4503 | if((opcode[i]&0x3f)==6) // BLEZ |
4504 | { |
4505 | emit_mov2imm_compact(ba[i],alt,start+i*4+8,addr); |
4506 | emit_cmpimm(s1l,1); |
57871462 |
4507 | emit_cmovl_reg(alt,addr); |
57871462 |
4508 | } |
4509 | if((opcode[i]&0x3f)==7) // BGTZ |
4510 | { |
4511 | emit_mov2imm_compact(ba[i],addr,start+i*4+8,ntaddr); |
4512 | emit_cmpimm(s1l,1); |
57871462 |
4513 | emit_cmovl_reg(ntaddr,addr); |
57871462 |
4514 | } |
4515 | if((opcode[i]&0x3f)==0x16) // BLEZL |
4516 | { |
4517 | assert((opcode[i]&0x3f)!=0x16); |
4518 | } |
4519 | if((opcode[i]&0x3f)==0x17) // BGTZL |
4520 | { |
4521 | assert((opcode[i]&0x3f)!=0x17); |
4522 | } |
4523 | assert(opcode[i]!=1); // BLTZ/BGEZ |
4524 | |
4525 | //FIXME: Check CSREG |
4526 | if(opcode[i]==0x11 && opcode2[i]==0x08 ) { |
4527 | if((source[i]&0x30000)==0) // BC1F |
4528 | { |
4529 | emit_mov2imm_compact(ba[i],addr,start+i*4+8,alt); |
4530 | emit_testimm(s1l,0x800000); |
4531 | emit_cmovne_reg(alt,addr); |
4532 | } |
4533 | if((source[i]&0x30000)==0x10000) // BC1T |
4534 | { |
4535 | emit_mov2imm_compact(ba[i],alt,start+i*4+8,addr); |
4536 | emit_testimm(s1l,0x800000); |
4537 | emit_cmovne_reg(alt,addr); |
4538 | } |
4539 | if((source[i]&0x30000)==0x20000) // BC1FL |
4540 | { |
4541 | emit_testimm(s1l,0x800000); |
df4dc2b1 |
4542 | nottaken=out; |
57871462 |
4543 | emit_jne(0); |
4544 | } |
4545 | if((source[i]&0x30000)==0x30000) // BC1TL |
4546 | { |
4547 | emit_testimm(s1l,0x800000); |
df4dc2b1 |
4548 | nottaken=out; |
57871462 |
4549 | emit_jeq(0); |
4550 | } |
4551 | } |
4552 | |
4553 | assert(i_regs->regmap[HOST_CCREG]==CCREG); |
ad49de89 |
4554 | wb_dirtys(regs[i].regmap,regs[i].dirty); |
57871462 |
4555 | if(likely[i]||unconditional) |
4556 | { |
4557 | emit_movimm(ba[i],HOST_BTREG); |
4558 | } |
4559 | else if(addr!=HOST_BTREG) |
4560 | { |
4561 | emit_mov(addr,HOST_BTREG); |
4562 | } |
4563 | void *branch_addr=out; |
4564 | emit_jmp(0); |
4565 | int target_addr=start+i*4+5; |
4566 | void *stub=out; |
4567 | void *compiled_target_addr=check_addr(target_addr); |
643aeae3 |
4568 | emit_extjump_ds(branch_addr, target_addr); |
57871462 |
4569 | if(compiled_target_addr) { |
df4dc2b1 |
4570 | set_jump_target(branch_addr, compiled_target_addr); |
57871462 |
4571 | add_link(target_addr,stub); |
4572 | } |
df4dc2b1 |
4573 | else set_jump_target(branch_addr, stub); |
57871462 |
4574 | if(likely[i]) { |
4575 | // Not-taken path |
df4dc2b1 |
4576 | set_jump_target(nottaken, out); |
ad49de89 |
4577 | wb_dirtys(regs[i].regmap,regs[i].dirty); |
57871462 |
4578 | void *branch_addr=out; |
4579 | emit_jmp(0); |
4580 | int target_addr=start+i*4+8; |
4581 | void *stub=out; |
4582 | void *compiled_target_addr=check_addr(target_addr); |
643aeae3 |
4583 | emit_extjump_ds(branch_addr, target_addr); |
57871462 |
4584 | if(compiled_target_addr) { |
df4dc2b1 |
4585 | set_jump_target(branch_addr, compiled_target_addr); |
57871462 |
4586 | add_link(target_addr,stub); |
4587 | } |
df4dc2b1 |
4588 | else set_jump_target(branch_addr, stub); |
57871462 |
4589 | } |
4590 | } |
4591 | |
4592 | // Assemble the delay slot for the above |
4593 | static void pagespan_ds() |
4594 | { |
4595 | assem_debug("initial delay slot:\n"); |
4596 | u_int vaddr=start+1; |
94d23bb9 |
4597 | u_int page=get_page(vaddr); |
4598 | u_int vpage=get_vpage(vaddr); |
57871462 |
4599 | ll_add(jump_dirty+vpage,vaddr,(void *)out); |
4600 | do_dirty_stub_ds(); |
4601 | ll_add(jump_in+page,vaddr,(void *)out); |
4602 | assert(regs[0].regmap_entry[HOST_CCREG]==CCREG); |
4603 | if(regs[0].regmap[HOST_CCREG]!=CCREG) |
ad49de89 |
4604 | wb_register(CCREG,regs[0].regmap_entry,regs[0].wasdirty); |
57871462 |
4605 | if(regs[0].regmap[HOST_BTREG]!=BTREG) |
643aeae3 |
4606 | emit_writeword(HOST_BTREG,&branch_target); |
ad49de89 |
4607 | load_regs(regs[0].regmap_entry,regs[0].regmap,rs1[0],rs2[0]); |
57871462 |
4608 | address_generation(0,®s[0],regs[0].regmap_entry); |
b9b61529 |
4609 | if(itype[0]==STORE||itype[0]==STORELR||(opcode[0]&0x3b)==0x39||(opcode[0]&0x3b)==0x3a) |
ad49de89 |
4610 | load_regs(regs[0].regmap_entry,regs[0].regmap,INVCP,INVCP); |
57871462 |
4611 | is_delayslot=0; |
4612 | switch(itype[0]) { |
4613 | case ALU: |
4614 | alu_assemble(0,®s[0]);break; |
4615 | case IMM16: |
4616 | imm16_assemble(0,®s[0]);break; |
4617 | case SHIFT: |
4618 | shift_assemble(0,®s[0]);break; |
4619 | case SHIFTIMM: |
4620 | shiftimm_assemble(0,®s[0]);break; |
4621 | case LOAD: |
4622 | load_assemble(0,®s[0]);break; |
4623 | case LOADLR: |
4624 | loadlr_assemble(0,®s[0]);break; |
4625 | case STORE: |
4626 | store_assemble(0,®s[0]);break; |
4627 | case STORELR: |
4628 | storelr_assemble(0,®s[0]);break; |
4629 | case COP0: |
4630 | cop0_assemble(0,®s[0]);break; |
4631 | case COP1: |
4632 | cop1_assemble(0,®s[0]);break; |
4633 | case C1LS: |
4634 | c1ls_assemble(0,®s[0]);break; |
b9b61529 |
4635 | case COP2: |
4636 | cop2_assemble(0,®s[0]);break; |
4637 | case C2LS: |
4638 | c2ls_assemble(0,®s[0]);break; |
4639 | case C2OP: |
4640 | c2op_assemble(0,®s[0]);break; |
57871462 |
4641 | case MULTDIV: |
4642 | multdiv_assemble(0,®s[0]);break; |
4643 | case MOV: |
4644 | mov_assemble(0,®s[0]);break; |
4645 | case SYSCALL: |
7139f3c8 |
4646 | case HLECALL: |
1e973cb0 |
4647 | case INTCALL: |
57871462 |
4648 | case SPAN: |
4649 | case UJUMP: |
4650 | case RJUMP: |
4651 | case CJUMP: |
4652 | case SJUMP: |
c43b5311 |
4653 | SysPrintf("Jump in the delay slot. This is probably a bug.\n"); |
57871462 |
4654 | } |
4655 | int btaddr=get_reg(regs[0].regmap,BTREG); |
4656 | if(btaddr<0) { |
4657 | btaddr=get_reg(regs[0].regmap,-1); |
643aeae3 |
4658 | emit_readword(&branch_target,btaddr); |
57871462 |
4659 | } |
4660 | assert(btaddr!=HOST_CCREG); |
4661 | if(regs[0].regmap[HOST_CCREG]!=CCREG) emit_loadreg(CCREG,HOST_CCREG); |
4662 | #ifdef HOST_IMM8 |
4663 | emit_movimm(start+4,HOST_TEMPREG); |
4664 | emit_cmp(btaddr,HOST_TEMPREG); |
4665 | #else |
4666 | emit_cmpimm(btaddr,start+4); |
4667 | #endif |
df4dc2b1 |
4668 | void *branch = out; |
57871462 |
4669 | emit_jeq(0); |
ad49de89 |
4670 | store_regs_bt(regs[0].regmap,regs[0].dirty,-1); |
57871462 |
4671 | emit_jmp(jump_vaddr_reg[btaddr]); |
df4dc2b1 |
4672 | set_jump_target(branch, out); |
ad49de89 |
4673 | store_regs_bt(regs[0].regmap,regs[0].dirty,start+4); |
4674 | load_regs_bt(regs[0].regmap,regs[0].dirty,start+4); |
57871462 |
4675 | } |
4676 | |
4677 | // Basic liveness analysis for MIPS registers |
4678 | void unneeded_registers(int istart,int iend,int r) |
4679 | { |
4680 | int i; |
00fa9369 |
4681 | uint64_t u,gte_u,b,gte_b; |
4682 | uint64_t temp_u,temp_gte_u=0; |
0ff8c62c |
4683 | uint64_t gte_u_unknown=0; |
4684 | if(new_dynarec_hacks&NDHACK_GTE_UNNEEDED) |
4685 | gte_u_unknown=~0ll; |
57871462 |
4686 | if(iend==slen-1) { |
00fa9369 |
4687 | u=1; |
0ff8c62c |
4688 | gte_u=gte_u_unknown; |
57871462 |
4689 | }else{ |
00fa9369 |
4690 | //u=unneeded_reg[iend+1]; |
4691 | u=1; |
0ff8c62c |
4692 | gte_u=gte_unneeded[iend+1]; |
57871462 |
4693 | } |
bedfea38 |
4694 | |
57871462 |
4695 | for (i=iend;i>=istart;i--) |
4696 | { |
4697 | //printf("unneeded registers i=%d (%d,%d) r=%d\n",i,istart,iend,r); |
ad49de89 |
4698 | if(itype[i]==RJUMP||itype[i]==UJUMP||itype[i]==CJUMP||itype[i]==SJUMP) |
57871462 |
4699 | { |
4700 | // If subroutine call, flag return address as a possible branch target |
4701 | if(rt1[i]==31 && i<slen-2) bt[i+2]=1; |
9f51b4b9 |
4702 | |
57871462 |
4703 | if(ba[i]<start || ba[i]>=(start+slen*4)) |
4704 | { |
4705 | // Branch out of this block, flush all regs |
4706 | u=1; |
0ff8c62c |
4707 | gte_u=gte_u_unknown; |
57871462 |
4708 | branch_unneeded_reg[i]=u; |
57871462 |
4709 | // Merge in delay slot |
57871462 |
4710 | u|=(1LL<<rt1[i+1])|(1LL<<rt2[i+1]); |
57871462 |
4711 | u&=~((1LL<<rs1[i+1])|(1LL<<rs2[i+1])); |
00fa9369 |
4712 | u|=1; |
bedfea38 |
4713 | gte_u|=gte_rt[i+1]; |
4714 | gte_u&=~gte_rs[i+1]; |
57871462 |
4715 | // If branch is "likely" (and conditional) |
4716 | // then we skip the delay slot on the fall-thru path |
4717 | if(likely[i]) { |
4718 | if(i<slen-1) { |
4719 | u&=unneeded_reg[i+2]; |
bedfea38 |
4720 | gte_u&=gte_unneeded[i+2]; |
57871462 |
4721 | } |
4722 | else |
4723 | { |
4724 | u=1; |
0ff8c62c |
4725 | gte_u=gte_u_unknown; |
57871462 |
4726 | } |
4727 | } |
4728 | } |
4729 | else |
4730 | { |
4731 | // Internal branch, flag target |
4732 | bt[(ba[i]-start)>>2]=1; |
4733 | if(ba[i]<=start+i*4) { |
4734 | // Backward branch |
4735 | if(itype[i]==RJUMP||itype[i]==UJUMP||(source[i]>>16)==0x1000) |
4736 | { |
4737 | // Unconditional branch |
00fa9369 |
4738 | temp_u=1; |
bedfea38 |
4739 | temp_gte_u=0; |
57871462 |
4740 | } else { |
4741 | // Conditional branch (not taken case) |
4742 | temp_u=unneeded_reg[i+2]; |
bedfea38 |
4743 | temp_gte_u&=gte_unneeded[i+2]; |
57871462 |
4744 | } |
4745 | // Merge in delay slot |
57871462 |
4746 | temp_u|=(1LL<<rt1[i+1])|(1LL<<rt2[i+1]); |
57871462 |
4747 | temp_u&=~((1LL<<rs1[i+1])|(1LL<<rs2[i+1])); |
00fa9369 |
4748 | temp_u|=1; |
bedfea38 |
4749 | temp_gte_u|=gte_rt[i+1]; |
4750 | temp_gte_u&=~gte_rs[i+1]; |
57871462 |
4751 | // If branch is "likely" (and conditional) |
4752 | // then we skip the delay slot on the fall-thru path |
4753 | if(likely[i]) { |
4754 | if(i<slen-1) { |
4755 | temp_u&=unneeded_reg[i+2]; |
bedfea38 |
4756 | temp_gte_u&=gte_unneeded[i+2]; |
57871462 |
4757 | } |
4758 | else |
4759 | { |
4760 | temp_u=1; |
0ff8c62c |
4761 | temp_gte_u=gte_u_unknown; |
57871462 |
4762 | } |
4763 | } |
57871462 |
4764 | temp_u|=(1LL<<rt1[i])|(1LL<<rt2[i]); |
57871462 |
4765 | temp_u&=~((1LL<<rs1[i])|(1LL<<rs2[i])); |
00fa9369 |
4766 | temp_u|=1; |
bedfea38 |
4767 | temp_gte_u|=gte_rt[i]; |
4768 | temp_gte_u&=~gte_rs[i]; |
57871462 |
4769 | unneeded_reg[i]=temp_u; |
bedfea38 |
4770 | gte_unneeded[i]=temp_gte_u; |
57871462 |
4771 | // Only go three levels deep. This recursion can take an |
4772 | // excessive amount of time if there are a lot of nested loops. |
4773 | if(r<2) { |
4774 | unneeded_registers((ba[i]-start)>>2,i-1,r+1); |
4775 | }else{ |
4776 | unneeded_reg[(ba[i]-start)>>2]=1; |
0ff8c62c |
4777 | gte_unneeded[(ba[i]-start)>>2]=gte_u_unknown; |
57871462 |
4778 | } |
4779 | } /*else*/ if(1) { |
4780 | if(itype[i]==RJUMP||itype[i]==UJUMP||(source[i]>>16)==0x1000) |
4781 | { |
4782 | // Unconditional branch |
4783 | u=unneeded_reg[(ba[i]-start)>>2]; |
bedfea38 |
4784 | gte_u=gte_unneeded[(ba[i]-start)>>2]; |
57871462 |
4785 | branch_unneeded_reg[i]=u; |
57871462 |
4786 | // Merge in delay slot |
57871462 |
4787 | u|=(1LL<<rt1[i+1])|(1LL<<rt2[i+1]); |
57871462 |
4788 | u&=~((1LL<<rs1[i+1])|(1LL<<rs2[i+1])); |
00fa9369 |
4789 | u|=1; |
bedfea38 |
4790 | gte_u|=gte_rt[i+1]; |
4791 | gte_u&=~gte_rs[i+1]; |
57871462 |
4792 | } else { |
4793 | // Conditional branch |
4794 | b=unneeded_reg[(ba[i]-start)>>2]; |
00fa9369 |
4795 | gte_b=gte_unneeded[(ba[i]-start)>>2]; |
57871462 |
4796 | branch_unneeded_reg[i]=b; |
57871462 |
4797 | // Branch delay slot |
57871462 |
4798 | b|=(1LL<<rt1[i+1])|(1LL<<rt2[i+1]); |
57871462 |
4799 | b&=~((1LL<<rs1[i+1])|(1LL<<rs2[i+1])); |
00fa9369 |
4800 | b|=1; |
4801 | gte_b|=gte_rt[i+1]; |
4802 | gte_b&=~gte_rs[i+1]; |
57871462 |
4803 | // If branch is "likely" then we skip the |
4804 | // delay slot on the fall-thru path |
4805 | if(likely[i]) { |
4806 | u=b; |
00fa9369 |
4807 | gte_u=gte_b; |
57871462 |
4808 | if(i<slen-1) { |
4809 | u&=unneeded_reg[i+2]; |
bedfea38 |
4810 | gte_u&=gte_unneeded[i+2]; |
57871462 |
4811 | } |
4812 | } else { |
4813 | u&=b; |
00fa9369 |
4814 | gte_u&=gte_b; |
57871462 |
4815 | } |
4816 | if(i<slen-1) { |
4817 | branch_unneeded_reg[i]&=unneeded_reg[i+2]; |
57871462 |
4818 | } else { |
4819 | branch_unneeded_reg[i]=1; |
57871462 |
4820 | } |
4821 | } |
4822 | } |
4823 | } |
4824 | } |
1e973cb0 |
4825 | else if(itype[i]==SYSCALL||itype[i]==HLECALL||itype[i]==INTCALL) |
57871462 |
4826 | { |
4827 | // SYSCALL instruction (software interrupt) |
4828 | u=1; |
57871462 |
4829 | } |
4830 | else if(itype[i]==COP0 && (source[i]&0x3f)==0x18) |
4831 | { |
4832 | // ERET instruction (return from interrupt) |
4833 | u=1; |
57871462 |
4834 | } |
00fa9369 |
4835 | //u=1; // DEBUG |
57871462 |
4836 | // Written registers are unneeded |
4837 | u|=1LL<<rt1[i]; |
4838 | u|=1LL<<rt2[i]; |
bedfea38 |
4839 | gte_u|=gte_rt[i]; |
57871462 |
4840 | // Accessed registers are needed |
4841 | u&=~(1LL<<rs1[i]); |
4842 | u&=~(1LL<<rs2[i]); |
bedfea38 |
4843 | gte_u&=~gte_rs[i]; |
eaa11918 |
4844 | if(gte_rs[i]&&rt1[i]&&(unneeded_reg[i+1]&(1ll<<rt1[i]))) |
cbbd8dd7 |
4845 | gte_u|=gte_rs[i]>e_unneeded[i+1]; // MFC2/CFC2 to dead register, unneeded |
57871462 |
4846 | // Source-target dependencies |
57871462 |
4847 | // R0 is always unneeded |
00fa9369 |
4848 | u|=1; |
57871462 |
4849 | // Save it |
4850 | unneeded_reg[i]=u; |
bedfea38 |
4851 | gte_unneeded[i]=gte_u; |
57871462 |
4852 | /* |
4853 | printf("ur (%d,%d) %x: ",istart,iend,start+i*4); |
4854 | printf("U:"); |
4855 | int r; |
4856 | for(r=1;r<=CCREG;r++) { |
4857 | if((unneeded_reg[i]>>r)&1) { |
4858 | if(r==HIREG) printf(" HI"); |
4859 | else if(r==LOREG) printf(" LO"); |
4860 | else printf(" r%d",r); |
4861 | } |
4862 | } |
00fa9369 |
4863 | printf("\n"); |
4864 | */ |
252c20fc |
4865 | } |
57871462 |
4866 | } |
4867 | |
71e490c5 |
4868 | // Write back dirty registers as soon as we will no longer modify them, |
4869 | // so that we don't end up with lots of writes at the branches. |
4870 | void clean_registers(int istart,int iend,int wr) |
57871462 |
4871 | { |
71e490c5 |
4872 | int i; |
4873 | int r; |
4874 | u_int will_dirty_i,will_dirty_next,temp_will_dirty; |
4875 | u_int wont_dirty_i,wont_dirty_next,temp_wont_dirty; |
4876 | if(iend==slen-1) { |
4877 | will_dirty_i=will_dirty_next=0; |
4878 | wont_dirty_i=wont_dirty_next=0; |
4879 | }else{ |
4880 | will_dirty_i=will_dirty_next=will_dirty[iend+1]; |
4881 | wont_dirty_i=wont_dirty_next=wont_dirty[iend+1]; |
4882 | } |
4883 | for (i=iend;i>=istart;i--) |
57871462 |
4884 | { |
ad49de89 |
4885 | if(itype[i]==RJUMP||itype[i]==UJUMP||itype[i]==CJUMP||itype[i]==SJUMP) |
57871462 |
4886 | { |
71e490c5 |
4887 | if(ba[i]<start || ba[i]>=(start+slen*4)) |
57871462 |
4888 | { |
71e490c5 |
4889 | // Branch out of this block, flush all regs |
4890 | if(itype[i]==RJUMP||itype[i]==UJUMP||(source[i]>>16)==0x1000) |
57871462 |
4891 | { |
4892 | // Unconditional branch |
4893 | will_dirty_i=0; |
4894 | wont_dirty_i=0; |
4895 | // Merge in delay slot (will dirty) |
4896 | for(r=0;r<HOST_REGS;r++) { |
4897 | if(r!=EXCLUDE_REG) { |
4898 | if((branch_regs[i].regmap[r]&63)==rt1[i]) will_dirty_i|=1<<r; |
4899 | if((branch_regs[i].regmap[r]&63)==rt2[i]) will_dirty_i|=1<<r; |
4900 | if((branch_regs[i].regmap[r]&63)==rt1[i+1]) will_dirty_i|=1<<r; |
4901 | if((branch_regs[i].regmap[r]&63)==rt2[i+1]) will_dirty_i|=1<<r; |
4902 | if((branch_regs[i].regmap[r]&63)>33) will_dirty_i&=~(1<<r); |
4903 | if(branch_regs[i].regmap[r]<=0) will_dirty_i&=~(1<<r); |
4904 | if(branch_regs[i].regmap[r]==CCREG) will_dirty_i|=1<<r; |
4905 | if((regs[i].regmap[r]&63)==rt1[i]) will_dirty_i|=1<<r; |
4906 | if((regs[i].regmap[r]&63)==rt2[i]) will_dirty_i|=1<<r; |
4907 | if((regs[i].regmap[r]&63)==rt1[i+1]) will_dirty_i|=1<<r; |
4908 | if((regs[i].regmap[r]&63)==rt2[i+1]) will_dirty_i|=1<<r; |
4909 | if((regs[i].regmap[r]&63)>33) will_dirty_i&=~(1<<r); |
4910 | if(regs[i].regmap[r]<=0) will_dirty_i&=~(1<<r); |
4911 | if(regs[i].regmap[r]==CCREG) will_dirty_i|=1<<r; |
4912 | } |
4913 | } |
4914 | } |
4915 | else |
4916 | { |
4917 | // Conditional branch |
4918 | will_dirty_i=0; |
4919 | wont_dirty_i=wont_dirty_next; |
4920 | // Merge in delay slot (will dirty) |
4921 | for(r=0;r<HOST_REGS;r++) { |
4922 | if(r!=EXCLUDE_REG) { |
4923 | if(!likely[i]) { |
4924 | // Might not dirty if likely branch is not taken |
4925 | if((branch_regs[i].regmap[r]&63)==rt1[i]) will_dirty_i|=1<<r; |
4926 | if((branch_regs[i].regmap[r]&63)==rt2[i]) will_dirty_i|=1<<r; |
4927 | if((branch_regs[i].regmap[r]&63)==rt1[i+1]) will_dirty_i|=1<<r; |
4928 | if((branch_regs[i].regmap[r]&63)==rt2[i+1]) will_dirty_i|=1<<r; |
4929 | if((branch_regs[i].regmap[r]&63)>33) will_dirty_i&=~(1<<r); |
4930 | if(branch_regs[i].regmap[r]==0) will_dirty_i&=~(1<<r); |
4931 | if(branch_regs[i].regmap[r]==CCREG) will_dirty_i|=1<<r; |
4932 | //if((regs[i].regmap[r]&63)==rt1[i]) will_dirty_i|=1<<r; |
4933 | //if((regs[i].regmap[r]&63)==rt2[i]) will_dirty_i|=1<<r; |
4934 | if((regs[i].regmap[r]&63)==rt1[i+1]) will_dirty_i|=1<<r; |
4935 | if((regs[i].regmap[r]&63)==rt2[i+1]) will_dirty_i|=1<<r; |
4936 | if((regs[i].regmap[r]&63)>33) will_dirty_i&=~(1<<r); |
4937 | if(regs[i].regmap[r]<=0) will_dirty_i&=~(1<<r); |
4938 | if(regs[i].regmap[r]==CCREG) will_dirty_i|=1<<r; |
4939 | } |
4940 | } |
4941 | } |
4942 | } |
4943 | // Merge in delay slot (wont dirty) |
4944 | for(r=0;r<HOST_REGS;r++) { |
4945 | if(r!=EXCLUDE_REG) { |
4946 | if((regs[i].regmap[r]&63)==rt1[i]) wont_dirty_i|=1<<r; |
4947 | if((regs[i].regmap[r]&63)==rt2[i]) wont_dirty_i|=1<<r; |
4948 | if((regs[i].regmap[r]&63)==rt1[i+1]) wont_dirty_i|=1<<r; |
4949 | if((regs[i].regmap[r]&63)==rt2[i+1]) wont_dirty_i|=1<<r; |
4950 | if(regs[i].regmap[r]==CCREG) wont_dirty_i|=1<<r; |
4951 | if((branch_regs[i].regmap[r]&63)==rt1[i]) wont_dirty_i|=1<<r; |
4952 | if((branch_regs[i].regmap[r]&63)==rt2[i]) wont_dirty_i|=1<<r; |
4953 | if((branch_regs[i].regmap[r]&63)==rt1[i+1]) wont_dirty_i|=1<<r; |
4954 | if((branch_regs[i].regmap[r]&63)==rt2[i+1]) wont_dirty_i|=1<<r; |
4955 | if(branch_regs[i].regmap[r]==CCREG) wont_dirty_i|=1<<r; |
4956 | } |
4957 | } |
4958 | if(wr) { |
4959 | #ifndef DESTRUCTIVE_WRITEBACK |
4960 | branch_regs[i].dirty&=wont_dirty_i; |
4961 | #endif |
4962 | branch_regs[i].dirty|=will_dirty_i; |
4963 | } |
4964 | } |
4965 | else |
4966 | { |
4967 | // Internal branch |
4968 | if(ba[i]<=start+i*4) { |
4969 | // Backward branch |
4970 | if(itype[i]==RJUMP||itype[i]==UJUMP||(source[i]>>16)==0x1000) |
4971 | { |
4972 | // Unconditional branch |
4973 | temp_will_dirty=0; |
4974 | temp_wont_dirty=0; |
4975 | // Merge in delay slot (will dirty) |
4976 | for(r=0;r<HOST_REGS;r++) { |
4977 | if(r!=EXCLUDE_REG) { |
4978 | if((branch_regs[i].regmap[r]&63)==rt1[i]) temp_will_dirty|=1<<r; |
4979 | if((branch_regs[i].regmap[r]&63)==rt2[i]) temp_will_dirty|=1<<r; |
4980 | if((branch_regs[i].regmap[r]&63)==rt1[i+1]) temp_will_dirty|=1<<r; |
4981 | if((branch_regs[i].regmap[r]&63)==rt2[i+1]) temp_will_dirty|=1<<r; |
4982 | if((branch_regs[i].regmap[r]&63)>33) temp_will_dirty&=~(1<<r); |
4983 | if(branch_regs[i].regmap[r]<=0) temp_will_dirty&=~(1<<r); |
4984 | if(branch_regs[i].regmap[r]==CCREG) temp_will_dirty|=1<<r; |
4985 | if((regs[i].regmap[r]&63)==rt1[i]) temp_will_dirty|=1<<r; |
4986 | if((regs[i].regmap[r]&63)==rt2[i]) temp_will_dirty|=1<<r; |
4987 | if((regs[i].regmap[r]&63)==rt1[i+1]) temp_will_dirty|=1<<r; |
4988 | if((regs[i].regmap[r]&63)==rt2[i+1]) temp_will_dirty|=1<<r; |
4989 | if((regs[i].regmap[r]&63)>33) temp_will_dirty&=~(1<<r); |
4990 | if(regs[i].regmap[r]<=0) temp_will_dirty&=~(1<<r); |
4991 | if(regs[i].regmap[r]==CCREG) temp_will_dirty|=1<<r; |
4992 | } |
4993 | } |
4994 | } else { |
4995 | // Conditional branch (not taken case) |
4996 | temp_will_dirty=will_dirty_next; |
4997 | temp_wont_dirty=wont_dirty_next; |
4998 | // Merge in delay slot (will dirty) |
4999 | for(r=0;r<HOST_REGS;r++) { |
5000 | if(r!=EXCLUDE_REG) { |
5001 | if(!likely[i]) { |
5002 | // Will not dirty if likely branch is not taken |
5003 | if((branch_regs[i].regmap[r]&63)==rt1[i]) temp_will_dirty|=1<<r; |
5004 | if((branch_regs[i].regmap[r]&63)==rt2[i]) temp_will_dirty|=1<<r; |
5005 | if((branch_regs[i].regmap[r]&63)==rt1[i+1]) temp_will_dirty|=1<<r; |
5006 | if((branch_regs[i].regmap[r]&63)==rt2[i+1]) temp_will_dirty|=1<<r; |
5007 | if((branch_regs[i].regmap[r]&63)>33) temp_will_dirty&=~(1<<r); |
5008 | if(branch_regs[i].regmap[r]==0) temp_will_dirty&=~(1<<r); |
5009 | if(branch_regs[i].regmap[r]==CCREG) temp_will_dirty|=1<<r; |
5010 | //if((regs[i].regmap[r]&63)==rt1[i]) temp_will_dirty|=1<<r; |
5011 | //if((regs[i].regmap[r]&63)==rt2[i]) temp_will_dirty|=1<<r; |
5012 | if((regs[i].regmap[r]&63)==rt1[i+1]) temp_will_dirty|=1<<r; |
5013 | if((regs[i].regmap[r]&63)==rt2[i+1]) temp_will_dirty|=1<<r; |
5014 | if((regs[i].regmap[r]&63)>33) temp_will_dirty&=~(1<<r); |
5015 | if(regs[i].regmap[r]<=0) temp_will_dirty&=~(1<<r); |
5016 | if(regs[i].regmap[r]==CCREG) temp_will_dirty|=1<<r; |
5017 | } |
5018 | } |
5019 | } |
5020 | } |
5021 | // Merge in delay slot (wont dirty) |
5022 | for(r=0;r<HOST_REGS;r++) { |
5023 | if(r!=EXCLUDE_REG) { |
5024 | if((regs[i].regmap[r]&63)==rt1[i]) temp_wont_dirty|=1<<r; |
5025 | if((regs[i].regmap[r]&63)==rt2[i]) temp_wont_dirty|=1<<r; |
5026 | if((regs[i].regmap[r]&63)==rt1[i+1]) temp_wont_dirty|=1<<r; |
5027 | if((regs[i].regmap[r]&63)==rt2[i+1]) temp_wont_dirty|=1<<r; |
5028 | if(regs[i].regmap[r]==CCREG) temp_wont_dirty|=1<<r; |
5029 | if((branch_regs[i].regmap[r]&63)==rt1[i]) temp_wont_dirty|=1<<r; |
5030 | if((branch_regs[i].regmap[r]&63)==rt2[i]) temp_wont_dirty|=1<<r; |
5031 | if((branch_regs[i].regmap[r]&63)==rt1[i+1]) temp_wont_dirty|=1<<r; |
5032 | if((branch_regs[i].regmap[r]&63)==rt2[i+1]) temp_wont_dirty|=1<<r; |
5033 | if(branch_regs[i].regmap[r]==CCREG) temp_wont_dirty|=1<<r; |
5034 | } |
5035 | } |
5036 | // Deal with changed mappings |
5037 | if(i<iend) { |
5038 | for(r=0;r<HOST_REGS;r++) { |
5039 | if(r!=EXCLUDE_REG) { |
5040 | if(regs[i].regmap[r]!=regmap_pre[i][r]) { |
5041 | temp_will_dirty&=~(1<<r); |
5042 | temp_wont_dirty&=~(1<<r); |
5043 | if((regmap_pre[i][r]&63)>0 && (regmap_pre[i][r]&63)<34) { |
5044 | temp_will_dirty|=((unneeded_reg[i]>>(regmap_pre[i][r]&63))&1)<<r; |
5045 | temp_wont_dirty|=((unneeded_reg[i]>>(regmap_pre[i][r]&63))&1)<<r; |
5046 | } else { |
5047 | temp_will_dirty|=1<<r; |
5048 | temp_wont_dirty|=1<<r; |
5049 | } |
5050 | } |
5051 | } |
5052 | } |
5053 | } |
5054 | if(wr) { |
5055 | will_dirty[i]=temp_will_dirty; |
5056 | wont_dirty[i]=temp_wont_dirty; |
5057 | clean_registers((ba[i]-start)>>2,i-1,0); |
5058 | }else{ |
5059 | // Limit recursion. It can take an excessive amount |
5060 | // of time if there are a lot of nested loops. |
5061 | will_dirty[(ba[i]-start)>>2]=0; |
5062 | wont_dirty[(ba[i]-start)>>2]=-1; |
5063 | } |
5064 | } |
5065 | /*else*/ if(1) |
5066 | { |
5067 | if(itype[i]==RJUMP||itype[i]==UJUMP||(source[i]>>16)==0x1000) |
5068 | { |
5069 | // Unconditional branch |
5070 | will_dirty_i=0; |
5071 | wont_dirty_i=0; |
5072 | //if(ba[i]>start+i*4) { // Disable recursion (for debugging) |
5073 | for(r=0;r<HOST_REGS;r++) { |
5074 | if(r!=EXCLUDE_REG) { |
5075 | if(branch_regs[i].regmap[r]==regs[(ba[i]-start)>>2].regmap_entry[r]) { |
5076 | will_dirty_i|=will_dirty[(ba[i]-start)>>2]&(1<<r); |
5077 | wont_dirty_i|=wont_dirty[(ba[i]-start)>>2]&(1<<r); |
5078 | } |
e3234ecf |
5079 | if(branch_regs[i].regmap[r]>=0) { |
5080 | will_dirty_i|=((unneeded_reg[(ba[i]-start)>>2]>>(branch_regs[i].regmap[r]&63))&1)<<r; |
5081 | wont_dirty_i|=((unneeded_reg[(ba[i]-start)>>2]>>(branch_regs[i].regmap[r]&63))&1)<<r; |
5082 | } |
57871462 |
5083 | } |
5084 | } |
5085 | //} |
5086 | // Merge in delay slot |
5087 | for(r=0;r<HOST_REGS;r++) { |
5088 | if(r!=EXCLUDE_REG) { |
5089 | if((branch_regs[i].regmap[r]&63)==rt1[i]) will_dirty_i|=1<<r; |
5090 | if((branch_regs[i].regmap[r]&63)==rt2[i]) will_dirty_i|=1<<r; |
5091 | if((branch_regs[i].regmap[r]&63)==rt1[i+1]) will_dirty_i|=1<<r; |
5092 | if((branch_regs[i].regmap[r]&63)==rt2[i+1]) will_dirty_i|=1<<r; |
5093 | if((branch_regs[i].regmap[r]&63)>33) will_dirty_i&=~(1<<r); |
5094 | if(branch_regs[i].regmap[r]<=0) will_dirty_i&=~(1<<r); |
5095 | if(branch_regs[i].regmap[r]==CCREG) will_dirty_i|=1<<r; |
5096 | if((regs[i].regmap[r]&63)==rt1[i]) will_dirty_i|=1<<r; |
5097 | if((regs[i].regmap[r]&63)==rt2[i]) will_dirty_i|=1<<r; |
5098 | if((regs[i].regmap[r]&63)==rt1[i+1]) will_dirty_i|=1<<r; |
5099 | if((regs[i].regmap[r]&63)==rt2[i+1]) will_dirty_i|=1<<r; |
5100 | if((regs[i].regmap[r]&63)>33) will_dirty_i&=~(1<<r); |
5101 | if(regs[i].regmap[r]<=0) will_dirty_i&=~(1<<r); |
5102 | if(regs[i].regmap[r]==CCREG) will_dirty_i|=1<<r; |
5103 | } |
5104 | } |
5105 | } else { |
5106 | // Conditional branch |
5107 | will_dirty_i=will_dirty_next; |
5108 | wont_dirty_i=wont_dirty_next; |
5109 | //if(ba[i]>start+i*4) { // Disable recursion (for debugging) |
5110 | for(r=0;r<HOST_REGS;r++) { |
5111 | if(r!=EXCLUDE_REG) { |
e3234ecf |
5112 | signed char target_reg=branch_regs[i].regmap[r]; |
5113 | if(target_reg==regs[(ba[i]-start)>>2].regmap_entry[r]) { |
57871462 |
5114 | will_dirty_i&=will_dirty[(ba[i]-start)>>2]&(1<<r); |
5115 | wont_dirty_i|=wont_dirty[(ba[i]-start)>>2]&(1<<r); |
5116 | } |
e3234ecf |
5117 | else if(target_reg>=0) { |
5118 | will_dirty_i&=((unneeded_reg[(ba[i]-start)>>2]>>(target_reg&63))&1)<<r; |
5119 | wont_dirty_i|=((unneeded_reg[(ba[i]-start)>>2]>>(target_reg&63))&1)<<r; |
57871462 |
5120 | } |
5121 | // Treat delay slot as part of branch too |
5122 | /*if(regs[i+1].regmap[r]==regs[(ba[i]-start)>>2].regmap_entry[r]) { |
5123 | will_dirty[i+1]&=will_dirty[(ba[i]-start)>>2]&(1<<r); |
5124 | wont_dirty[i+1]|=wont_dirty[(ba[i]-start)>>2]&(1<<r); |
5125 | } |
5126 | else |
5127 | { |
5128 | will_dirty[i+1]&=~(1<<r); |
5129 | }*/ |
5130 | } |
5131 | } |
5132 | //} |
5133 | // Merge in delay slot |
5134 | for(r=0;r<HOST_REGS;r++) { |
5135 | if(r!=EXCLUDE_REG) { |
5136 | if(!likely[i]) { |
5137 | // Might not dirty if likely branch is not taken |
5138 | if((branch_regs[i].regmap[r]&63)==rt1[i]) will_dirty_i|=1<<r; |
5139 | if((branch_regs[i].regmap[r]&63)==rt2[i]) will_dirty_i|=1<<r; |
5140 | if((branch_regs[i].regmap[r]&63)==rt1[i+1]) will_dirty_i|=1<<r; |
5141 | if((branch_regs[i].regmap[r]&63)==rt2[i+1]) will_dirty_i|=1<<r; |
5142 | if((branch_regs[i].regmap[r]&63)>33) will_dirty_i&=~(1<<r); |
5143 | if(branch_regs[i].regmap[r]<=0) will_dirty_i&=~(1<<r); |
5144 | if(branch_regs[i].regmap[r]==CCREG) will_dirty_i|=1<<r; |
5145 | //if((regs[i].regmap[r]&63)==rt1[i]) will_dirty_i|=1<<r; |
5146 | //if((regs[i].regmap[r]&63)==rt2[i]) will_dirty_i|=1<<r; |
5147 | if((regs[i].regmap[r]&63)==rt1[i+1]) will_dirty_i|=1<<r; |
5148 | if((regs[i].regmap[r]&63)==rt2[i+1]) will_dirty_i|=1<<r; |
5149 | if((regs[i].regmap[r]&63)>33) will_dirty_i&=~(1<<r); |
5150 | if(regs[i].regmap[r]<=0) will_dirty_i&=~(1<<r); |
5151 | if(regs[i].regmap[r]==CCREG) will_dirty_i|=1<<r; |
5152 | } |
5153 | } |
5154 | } |
5155 | } |
e3234ecf |
5156 | // Merge in delay slot (won't dirty) |
57871462 |
5157 | for(r=0;r<HOST_REGS;r++) { |
5158 | if(r!=EXCLUDE_REG) { |
5159 | if((regs[i].regmap[r]&63)==rt1[i]) wont_dirty_i|=1<<r; |
5160 | if((regs[i].regmap[r]&63)==rt2[i]) wont_dirty_i|=1<<r; |
5161 | if((regs[i].regmap[r]&63)==rt1[i+1]) wont_dirty_i|=1<<r; |
5162 | if((regs[i].regmap[r]&63)==rt2[i+1]) wont_dirty_i|=1<<r; |
5163 | if(regs[i].regmap[r]==CCREG) wont_dirty_i|=1<<r; |
5164 | if((branch_regs[i].regmap[r]&63)==rt1[i]) wont_dirty_i|=1<<r; |
5165 | if((branch_regs[i].regmap[r]&63)==rt2[i]) wont_dirty_i|=1<<r; |
5166 | if((branch_regs[i].regmap[r]&63)==rt1[i+1]) wont_dirty_i|=1<<r; |
5167 | if((branch_regs[i].regmap[r]&63)==rt2[i+1]) wont_dirty_i|=1<<r; |
5168 | if(branch_regs[i].regmap[r]==CCREG) wont_dirty_i|=1<<r; |
5169 | } |
5170 | } |
5171 | if(wr) { |
5172 | #ifndef DESTRUCTIVE_WRITEBACK |
5173 | branch_regs[i].dirty&=wont_dirty_i; |
5174 | #endif |
5175 | branch_regs[i].dirty|=will_dirty_i; |
5176 | } |
5177 | } |
5178 | } |
5179 | } |
1e973cb0 |
5180 | else if(itype[i]==SYSCALL||itype[i]==HLECALL||itype[i]==INTCALL) |
57871462 |
5181 | { |
5182 | // SYSCALL instruction (software interrupt) |
5183 | will_dirty_i=0; |
5184 | wont_dirty_i=0; |
5185 | } |
5186 | else if(itype[i]==COP0 && (source[i]&0x3f)==0x18) |
5187 | { |
5188 | // ERET instruction (return from interrupt) |
5189 | will_dirty_i=0; |
5190 | wont_dirty_i=0; |
5191 | } |
5192 | will_dirty_next=will_dirty_i; |
5193 | wont_dirty_next=wont_dirty_i; |
5194 | for(r=0;r<HOST_REGS;r++) { |
5195 | if(r!=EXCLUDE_REG) { |
5196 | if((regs[i].regmap[r]&63)==rt1[i]) will_dirty_i|=1<<r; |
5197 | if((regs[i].regmap[r]&63)==rt2[i]) will_dirty_i|=1<<r; |
5198 | if((regs[i].regmap[r]&63)>33) will_dirty_i&=~(1<<r); |
5199 | if(regs[i].regmap[r]<=0) will_dirty_i&=~(1<<r); |
5200 | if(regs[i].regmap[r]==CCREG) will_dirty_i|=1<<r; |
5201 | if((regs[i].regmap[r]&63)==rt1[i]) wont_dirty_i|=1<<r; |
5202 | if((regs[i].regmap[r]&63)==rt2[i]) wont_dirty_i|=1<<r; |
5203 | if(regs[i].regmap[r]==CCREG) wont_dirty_i|=1<<r; |
5204 | if(i>istart) { |
ad49de89 |
5205 | if(itype[i]!=RJUMP&&itype[i]!=UJUMP&&itype[i]!=CJUMP&&itype[i]!=SJUMP) |
57871462 |
5206 | { |
5207 | // Don't store a register immediately after writing it, |
5208 | // may prevent dual-issue. |
5209 | if((regs[i].regmap[r]&63)==rt1[i-1]) wont_dirty_i|=1<<r; |
5210 | if((regs[i].regmap[r]&63)==rt2[i-1]) wont_dirty_i|=1<<r; |
5211 | } |
5212 | } |
5213 | } |
5214 | } |
5215 | // Save it |
5216 | will_dirty[i]=will_dirty_i; |
5217 | wont_dirty[i]=wont_dirty_i; |
5218 | // Mark registers that won't be dirtied as not dirty |
5219 | if(wr) { |
5220 | /*printf("wr (%d,%d) %x will:",istart,iend,start+i*4); |
5221 | for(r=0;r<HOST_REGS;r++) { |
5222 | if((will_dirty_i>>r)&1) { |
5223 | printf(" r%d",r); |
5224 | } |
5225 | } |
5226 | printf("\n");*/ |
5227 | |
ad49de89 |
5228 | //if(i==istart||(itype[i-1]!=RJUMP&&itype[i-1]!=UJUMP&&itype[i-1]!=CJUMP&&itype[i-1]!=SJUMP)) { |
57871462 |
5229 | regs[i].dirty|=will_dirty_i; |
5230 | #ifndef DESTRUCTIVE_WRITEBACK |
5231 | regs[i].dirty&=wont_dirty_i; |
ad49de89 |
5232 | if(itype[i]==RJUMP||itype[i]==UJUMP||itype[i]==CJUMP||itype[i]==SJUMP) |
57871462 |
5233 | { |
5234 | if(i<iend-1&&itype[i]!=RJUMP&&itype[i]!=UJUMP&&(source[i]>>16)!=0x1000) { |
5235 | for(r=0;r<HOST_REGS;r++) { |
5236 | if(r!=EXCLUDE_REG) { |
5237 | if(regs[i].regmap[r]==regmap_pre[i+2][r]) { |
5238 | regs[i+2].wasdirty&=wont_dirty_i|~(1<<r); |
581335b0 |
5239 | }else {/*printf("i: %x (%d) mismatch(+2): %d\n",start+i*4,i,r);assert(!((wont_dirty_i>>r)&1));*/} |
57871462 |
5240 | } |
5241 | } |
5242 | } |
5243 | } |
5244 | else |
5245 | { |
5246 | if(i<iend) { |
5247 | for(r=0;r<HOST_REGS;r++) { |
5248 | if(r!=EXCLUDE_REG) { |
5249 | if(regs[i].regmap[r]==regmap_pre[i+1][r]) { |
5250 | regs[i+1].wasdirty&=wont_dirty_i|~(1<<r); |
581335b0 |
5251 | }else {/*printf("i: %x (%d) mismatch(+1): %d\n",start+i*4,i,r);assert(!((wont_dirty_i>>r)&1));*/} |
57871462 |
5252 | } |
5253 | } |
5254 | } |
5255 | } |
5256 | #endif |
5257 | //} |
5258 | } |
5259 | // Deal with changed mappings |
5260 | temp_will_dirty=will_dirty_i; |
5261 | temp_wont_dirty=wont_dirty_i; |
5262 | for(r=0;r<HOST_REGS;r++) { |
5263 | if(r!=EXCLUDE_REG) { |
5264 | int nr; |
5265 | if(regs[i].regmap[r]==regmap_pre[i][r]) { |
5266 | if(wr) { |
5267 | #ifndef DESTRUCTIVE_WRITEBACK |
5268 | regs[i].wasdirty&=wont_dirty_i|~(1<<r); |
5269 | #endif |
5270 | regs[i].wasdirty|=will_dirty_i&(1<<r); |
5271 | } |
5272 | } |
f776eb14 |
5273 | else if(regmap_pre[i][r]>=0&&(nr=get_reg(regs[i].regmap,regmap_pre[i][r]))>=0) { |
57871462 |
5274 | // Register moved to a different register |
5275 | will_dirty_i&=~(1<<r); |
5276 | wont_dirty_i&=~(1<<r); |
5277 | will_dirty_i|=((temp_will_dirty>>nr)&1)<<r; |
5278 | wont_dirty_i|=((temp_wont_dirty>>nr)&1)<<r; |
5279 | if(wr) { |
5280 | #ifndef DESTRUCTIVE_WRITEBACK |
5281 | regs[i].wasdirty&=wont_dirty_i|~(1<<r); |
5282 | #endif |
5283 | regs[i].wasdirty|=will_dirty_i&(1<<r); |
5284 | } |
5285 | } |
5286 | else { |
5287 | will_dirty_i&=~(1<<r); |
5288 | wont_dirty_i&=~(1<<r); |
5289 | if((regmap_pre[i][r]&63)>0 && (regmap_pre[i][r]&63)<34) { |
5290 | will_dirty_i|=((unneeded_reg[i]>>(regmap_pre[i][r]&63))&1)<<r; |
5291 | wont_dirty_i|=((unneeded_reg[i]>>(regmap_pre[i][r]&63))&1)<<r; |
5292 | } else { |
5293 | wont_dirty_i|=1<<r; |
581335b0 |
5294 | /*printf("i: %x (%d) mismatch: %d\n",start+i*4,i,r);assert(!((will_dirty>>r)&1));*/ |
57871462 |
5295 | } |
5296 | } |
5297 | } |
5298 | } |
5299 | } |
5300 | } |
5301 | |
4600ba03 |
5302 | #ifdef DISASM |
57871462 |
5303 | /* disassembly */ |
5304 | void disassemble_inst(int i) |
5305 | { |
5306 | if (bt[i]) printf("*"); else printf(" "); |
5307 | switch(itype[i]) { |
5308 | case UJUMP: |
5309 | printf (" %x: %s %8x\n",start+i*4,insn[i],ba[i]);break; |
5310 | case CJUMP: |
5311 | 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; |
5312 | case SJUMP: |
5313 | 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 |
5314 | case RJUMP: |
74426039 |
5315 | if (opcode[i]==0x9&&rt1[i]!=31) |
5067f341 |
5316 | printf (" %x: %s r%d,r%d\n",start+i*4,insn[i],rt1[i],rs1[i]); |
5317 | else |
5318 | printf (" %x: %s r%d\n",start+i*4,insn[i],rs1[i]); |
5319 | break; |
57871462 |
5320 | case SPAN: |
5321 | printf (" %x: %s (pagespan) r%d,r%d,%8x\n",start+i*4,insn[i],rs1[i],rs2[i],ba[i]);break; |
5322 | case IMM16: |
5323 | if(opcode[i]==0xf) //LUI |
5324 | printf (" %x: %s r%d,%4x0000\n",start+i*4,insn[i],rt1[i],imm[i]&0xffff); |
5325 | else |
5326 | printf (" %x: %s r%d,r%d,%d\n",start+i*4,insn[i],rt1[i],rs1[i],imm[i]); |
5327 | break; |
5328 | case LOAD: |
5329 | case LOADLR: |
5330 | printf (" %x: %s r%d,r%d+%x\n",start+i*4,insn[i],rt1[i],rs1[i],imm[i]); |
5331 | break; |
5332 | case STORE: |
5333 | case STORELR: |
5334 | printf (" %x: %s r%d,r%d+%x\n",start+i*4,insn[i],rs2[i],rs1[i],imm[i]); |
5335 | break; |
5336 | case ALU: |
5337 | case SHIFT: |
5338 | printf (" %x: %s r%d,r%d,r%d\n",start+i*4,insn[i],rt1[i],rs1[i],rs2[i]); |
5339 | break; |
5340 | case MULTDIV: |
5341 | printf (" %x: %s r%d,r%d\n",start+i*4,insn[i],rs1[i],rs2[i]); |
5342 | break; |
5343 | case SHIFTIMM: |
5344 | printf (" %x: %s r%d,r%d,%d\n",start+i*4,insn[i],rt1[i],rs1[i],imm[i]); |
5345 | break; |
5346 | case MOV: |
5347 | if((opcode2[i]&0x1d)==0x10) |
5348 | printf (" %x: %s r%d\n",start+i*4,insn[i],rt1[i]); |
5349 | else if((opcode2[i]&0x1d)==0x11) |
5350 | printf (" %x: %s r%d\n",start+i*4,insn[i],rs1[i]); |
5351 | else |
5352 | printf (" %x: %s\n",start+i*4,insn[i]); |
5353 | break; |
5354 | case COP0: |
5355 | if(opcode2[i]==0) |
5356 | printf (" %x: %s r%d,cpr0[%d]\n",start+i*4,insn[i],rt1[i],(source[i]>>11)&0x1f); // MFC0 |
5357 | else if(opcode2[i]==4) |
5358 | printf (" %x: %s r%d,cpr0[%d]\n",start+i*4,insn[i],rs1[i],(source[i]>>11)&0x1f); // MTC0 |
5359 | else printf (" %x: %s\n",start+i*4,insn[i]); |
5360 | break; |
5361 | case COP1: |
5362 | if(opcode2[i]<3) |
5363 | printf (" %x: %s r%d,cpr1[%d]\n",start+i*4,insn[i],rt1[i],(source[i]>>11)&0x1f); // MFC1 |
5364 | else if(opcode2[i]>3) |
5365 | printf (" %x: %s r%d,cpr1[%d]\n",start+i*4,insn[i],rs1[i],(source[i]>>11)&0x1f); // MTC1 |
5366 | else printf (" %x: %s\n",start+i*4,insn[i]); |
5367 | break; |
b9b61529 |
5368 | case COP2: |
5369 | if(opcode2[i]<3) |
5370 | printf (" %x: %s r%d,cpr2[%d]\n",start+i*4,insn[i],rt1[i],(source[i]>>11)&0x1f); // MFC2 |
5371 | else if(opcode2[i]>3) |
5372 | printf (" %x: %s r%d,cpr2[%d]\n",start+i*4,insn[i],rs1[i],(source[i]>>11)&0x1f); // MTC2 |
5373 | else printf (" %x: %s\n",start+i*4,insn[i]); |
5374 | break; |
57871462 |
5375 | case C1LS: |
5376 | printf (" %x: %s cpr1[%d],r%d+%x\n",start+i*4,insn[i],(source[i]>>16)&0x1f,rs1[i],imm[i]); |
5377 | break; |
b9b61529 |
5378 | case C2LS: |
5379 | printf (" %x: %s cpr2[%d],r%d+%x\n",start+i*4,insn[i],(source[i]>>16)&0x1f,rs1[i],imm[i]); |
5380 | break; |
1e973cb0 |
5381 | case INTCALL: |
5382 | printf (" %x: %s (INTCALL)\n",start+i*4,insn[i]); |
5383 | break; |
57871462 |
5384 | default: |
5385 | //printf (" %s %8x\n",insn[i],source[i]); |
5386 | printf (" %x: %s\n",start+i*4,insn[i]); |
5387 | } |
5388 | } |
4600ba03 |
5389 | #else |
5390 | static void disassemble_inst(int i) {} |
5391 | #endif // DISASM |
57871462 |
5392 | |
d848b60a |
5393 | #define DRC_TEST_VAL 0x74657374 |
5394 | |
5395 | static int new_dynarec_test(void) |
5396 | { |
5397 | int (*testfunc)(void) = (void *)out; |
d148d265 |
5398 | void *beginning; |
d848b60a |
5399 | int ret; |
d148d265 |
5400 | |
5401 | beginning = start_block(); |
d848b60a |
5402 | emit_movimm(DRC_TEST_VAL,0); // test |
5403 | emit_jmpreg(14); |
5404 | literal_pool(0); |
d148d265 |
5405 | end_block(beginning); |
d848b60a |
5406 | SysPrintf("testing if we can run recompiled code..\n"); |
5407 | ret = testfunc(); |
5408 | if (ret == DRC_TEST_VAL) |
5409 | SysPrintf("test passed.\n"); |
5410 | else |
5411 | SysPrintf("test failed: %08x\n", ret); |
643aeae3 |
5412 | out = translation_cache; |
d848b60a |
5413 | return ret == DRC_TEST_VAL; |
5414 | } |
5415 | |
dc990066 |
5416 | // clear the state completely, instead of just marking |
5417 | // things invalid like invalidate_all_pages() does |
5418 | void new_dynarec_clear_full() |
57871462 |
5419 | { |
57871462 |
5420 | int n; |
643aeae3 |
5421 | out = translation_cache; |
35775df7 |
5422 | memset(invalid_code,1,sizeof(invalid_code)); |
5423 | memset(hash_table,0xff,sizeof(hash_table)); |
57871462 |
5424 | memset(mini_ht,-1,sizeof(mini_ht)); |
5425 | memset(restore_candidate,0,sizeof(restore_candidate)); |
dc990066 |
5426 | memset(shadow,0,sizeof(shadow)); |
57871462 |
5427 | copy=shadow; |
5428 | expirep=16384; // Expiry pointer, +2 blocks |
5429 | pending_exception=0; |
5430 | literalcount=0; |
57871462 |
5431 | stop_after_jal=0; |
9be4ba64 |
5432 | inv_code_start=inv_code_end=~0; |
57871462 |
5433 | // TLB |
dc990066 |
5434 | for(n=0;n<4096;n++) ll_clear(jump_in+n); |
5435 | for(n=0;n<4096;n++) ll_clear(jump_out+n); |
5436 | for(n=0;n<4096;n++) ll_clear(jump_dirty+n); |
5437 | } |
5438 | |
5439 | void new_dynarec_init() |
5440 | { |
d848b60a |
5441 | SysPrintf("Init new dynarec\n"); |
1e212a25 |
5442 | |
5443 | // allocate/prepare a buffer for translation cache |
5444 | // see assem_arm.h for some explanation |
5445 | #if defined(BASE_ADDR_FIXED) |
643aeae3 |
5446 | if (mmap(translation_cache, 1 << TARGET_SIZE_2, |
dc990066 |
5447 | PROT_READ | PROT_WRITE | PROT_EXEC, |
186935dc |
5448 | MAP_PRIVATE | MAP_ANONYMOUS, |
1e212a25 |
5449 | -1, 0) != translation_cache) { |
5450 | SysPrintf("mmap() failed: %s\n", strerror(errno)); |
5451 | SysPrintf("disable BASE_ADDR_FIXED and recompile\n"); |
5452 | abort(); |
5453 | } |
5454 | #elif defined(BASE_ADDR_DYNAMIC) |
5455 | #ifdef VITA |
5456 | sceBlock = sceKernelAllocMemBlockForVM("code", 1 << TARGET_SIZE_2); |
5457 | if (sceBlock < 0) |
5458 | SysPrintf("sceKernelAllocMemBlockForVM failed\n"); |
5459 | int ret = sceKernelGetMemBlockBase(sceBlock, (void **)&translation_cache); |
5460 | if (ret < 0) |
5461 | SysPrintf("sceKernelGetMemBlockBase failed\n"); |
5462 | #else |
5463 | translation_cache = mmap (NULL, 1 << TARGET_SIZE_2, |
5464 | PROT_READ | PROT_WRITE | PROT_EXEC, |
5465 | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); |
5466 | if (translation_cache == MAP_FAILED) { |
d848b60a |
5467 | SysPrintf("mmap() failed: %s\n", strerror(errno)); |
1e212a25 |
5468 | abort(); |
d848b60a |
5469 | } |
1e212a25 |
5470 | #endif |
5471 | #else |
5472 | #ifndef NO_WRITE_EXEC |
bdeade46 |
5473 | // not all systems allow execute in data segment by default |
643aeae3 |
5474 | if (mprotect(translation_cache, 1<<TARGET_SIZE_2, PROT_READ | PROT_WRITE | PROT_EXEC) != 0) |
d848b60a |
5475 | SysPrintf("mprotect() failed: %s\n", strerror(errno)); |
1e212a25 |
5476 | #endif |
dc990066 |
5477 | #endif |
643aeae3 |
5478 | out = translation_cache; |
2573466a |
5479 | cycle_multiplier=200; |
dc990066 |
5480 | new_dynarec_clear_full(); |
5481 | #ifdef HOST_IMM8 |
5482 | // Copy this into local area so we don't have to put it in every literal pool |
5483 | invc_ptr=invalid_code; |
5484 | #endif |
57871462 |
5485 | arch_init(); |
d848b60a |
5486 | new_dynarec_test(); |
a327ad27 |
5487 | #ifndef RAM_FIXED |
01d26796 |
5488 | ram_offset=(uintptr_t)rdram-0x80000000; |
a327ad27 |
5489 | #endif |
b105cf4f |
5490 | if (ram_offset!=0) |
c43b5311 |
5491 | SysPrintf("warning: RAM is not directly mapped, performance will suffer\n"); |
57871462 |
5492 | } |
5493 | |
5494 | void new_dynarec_cleanup() |
5495 | { |
5496 | int n; |
1e212a25 |
5497 | #if defined(BASE_ADDR_FIXED) || defined(BASE_ADDR_DYNAMIC) |
5498 | #ifdef VITA |
5499 | sceKernelFreeMemBlock(sceBlock); |
5500 | sceBlock = -1; |
5501 | #else |
643aeae3 |
5502 | if (munmap(translation_cache, 1<<TARGET_SIZE_2) < 0) |
1e212a25 |
5503 | SysPrintf("munmap() failed\n"); |
bdeade46 |
5504 | #endif |
1e212a25 |
5505 | #endif |
57871462 |
5506 | for(n=0;n<4096;n++) ll_clear(jump_in+n); |
5507 | for(n=0;n<4096;n++) ll_clear(jump_out+n); |
5508 | for(n=0;n<4096;n++) ll_clear(jump_dirty+n); |
5509 | #ifdef ROM_COPY |
c43b5311 |
5510 | if (munmap (ROM_COPY, 67108864) < 0) {SysPrintf("munmap() failed\n");} |
57871462 |
5511 | #endif |
5512 | } |
5513 | |
03f55e6b |
5514 | static u_int *get_source_start(u_int addr, u_int *limit) |
57871462 |
5515 | { |
03f55e6b |
5516 | if (addr < 0x00200000 || |
5517 | (0xa0000000 <= addr && addr < 0xa0200000)) { |
5518 | // used for BIOS calls mostly? |
5519 | *limit = (addr&0xa0000000)|0x00200000; |
01d26796 |
5520 | return (u_int *)(rdram + (addr&0x1fffff)); |
03f55e6b |
5521 | } |
5522 | else if (!Config.HLE && ( |
5523 | /* (0x9fc00000 <= addr && addr < 0x9fc80000) ||*/ |
5524 | (0xbfc00000 <= addr && addr < 0xbfc80000))) { |
5525 | // BIOS |
5526 | *limit = (addr & 0xfff00000) | 0x80000; |
01d26796 |
5527 | return (u_int *)((u_char *)psxR + (addr&0x7ffff)); |
03f55e6b |
5528 | } |
5529 | else if (addr >= 0x80000000 && addr < 0x80000000+RAM_SIZE) { |
5530 | *limit = (addr & 0x80600000) + 0x00200000; |
01d26796 |
5531 | return (u_int *)(rdram + (addr&0x1fffff)); |
03f55e6b |
5532 | } |
581335b0 |
5533 | return NULL; |
03f55e6b |
5534 | } |
5535 | |
5536 | static u_int scan_for_ret(u_int addr) |
5537 | { |
5538 | u_int limit = 0; |
5539 | u_int *mem; |
5540 | |
5541 | mem = get_source_start(addr, &limit); |
5542 | if (mem == NULL) |
5543 | return addr; |
5544 | |
5545 | if (limit > addr + 0x1000) |
5546 | limit = addr + 0x1000; |
5547 | for (; addr < limit; addr += 4, mem++) { |
5548 | if (*mem == 0x03e00008) // jr $ra |
5549 | return addr + 8; |
57871462 |
5550 | } |
581335b0 |
5551 | return addr; |
03f55e6b |
5552 | } |
5553 | |
5554 | struct savestate_block { |
5555 | uint32_t addr; |
5556 | uint32_t regflags; |
5557 | }; |
5558 | |
5559 | static int addr_cmp(const void *p1_, const void *p2_) |
5560 | { |
5561 | const struct savestate_block *p1 = p1_, *p2 = p2_; |
5562 | return p1->addr - p2->addr; |
5563 | } |
5564 | |
5565 | int new_dynarec_save_blocks(void *save, int size) |
5566 | { |
5567 | struct savestate_block *blocks = save; |
5568 | int maxcount = size / sizeof(blocks[0]); |
5569 | struct savestate_block tmp_blocks[1024]; |
5570 | struct ll_entry *head; |
5571 | int p, s, d, o, bcnt; |
5572 | u_int addr; |
5573 | |
5574 | o = 0; |
b14b6a8f |
5575 | for (p = 0; p < ARRAY_SIZE(jump_in); p++) { |
03f55e6b |
5576 | bcnt = 0; |
5577 | for (head = jump_in[p]; head != NULL; head = head->next) { |
5578 | tmp_blocks[bcnt].addr = head->vaddr; |
5579 | tmp_blocks[bcnt].regflags = head->reg_sv_flags; |
5580 | bcnt++; |
5581 | } |
5582 | if (bcnt < 1) |
5583 | continue; |
5584 | qsort(tmp_blocks, bcnt, sizeof(tmp_blocks[0]), addr_cmp); |
5585 | |
5586 | addr = tmp_blocks[0].addr; |
5587 | for (s = d = 0; s < bcnt; s++) { |
5588 | if (tmp_blocks[s].addr < addr) |
5589 | continue; |
5590 | if (d == 0 || tmp_blocks[d-1].addr != tmp_blocks[s].addr) |
5591 | tmp_blocks[d++] = tmp_blocks[s]; |
5592 | addr = scan_for_ret(tmp_blocks[s].addr); |
5593 | } |
5594 | |
5595 | if (o + d > maxcount) |
5596 | d = maxcount - o; |
5597 | memcpy(&blocks[o], tmp_blocks, d * sizeof(blocks[0])); |
5598 | o += d; |
5599 | } |
5600 | |
5601 | return o * sizeof(blocks[0]); |
5602 | } |
5603 | |
5604 | void new_dynarec_load_blocks(const void *save, int size) |
5605 | { |
5606 | const struct savestate_block *blocks = save; |
5607 | int count = size / sizeof(blocks[0]); |
5608 | u_int regs_save[32]; |
5609 | uint32_t f; |
5610 | int i, b; |
5611 | |
5612 | get_addr(psxRegs.pc); |
5613 | |
5614 | // change GPRs for speculation to at least partially work.. |
5615 | memcpy(regs_save, &psxRegs.GPR, sizeof(regs_save)); |
5616 | for (i = 1; i < 32; i++) |
5617 | psxRegs.GPR.r[i] = 0x80000000; |
5618 | |
5619 | for (b = 0; b < count; b++) { |
5620 | for (f = blocks[b].regflags, i = 0; f; f >>= 1, i++) { |
5621 | if (f & 1) |
5622 | psxRegs.GPR.r[i] = 0x1f800000; |
5623 | } |
5624 | |
5625 | get_addr(blocks[b].addr); |
5626 | |
5627 | for (f = blocks[b].regflags, i = 0; f; f >>= 1, i++) { |
5628 | if (f & 1) |
5629 | psxRegs.GPR.r[i] = 0x80000000; |
5630 | } |
5631 | } |
5632 | |
5633 | memcpy(&psxRegs.GPR, regs_save, sizeof(regs_save)); |
5634 | } |
5635 | |
5636 | int new_recompile_block(int addr) |
5637 | { |
5638 | u_int pagelimit = 0; |
5639 | u_int state_rflags = 0; |
5640 | int i; |
5641 | |
1a4301c4 |
5642 | assem_debug("NOTCOMPILED: addr = %x -> %p\n", addr, out); |
57871462 |
5643 | //printf("TRACE: count=%d next=%d (compile %x)\n",Count,next_interupt,addr); |
9f51b4b9 |
5644 | //if(debug) |
57871462 |
5645 | //printf("fpu mapping=%x enabled=%x\n",(Status & 0x04000000)>>26,(Status & 0x20000000)>>29); |
03f55e6b |
5646 | |
5647 | // this is just for speculation |
5648 | for (i = 1; i < 32; i++) { |
5649 | if ((psxRegs.GPR.r[i] & 0xffff0000) == 0x1f800000) |
5650 | state_rflags |= 1 << i; |
5651 | } |
5652 | |
57871462 |
5653 | start = (u_int)addr&~3; |
5654 | //assert(((u_int)addr&1)==0); |
2f546f9a |
5655 | new_dynarec_did_compile=1; |
9ad4d757 |
5656 | if (Config.HLE && start == 0x80001000) // hlecall |
560e4a12 |
5657 | { |
7139f3c8 |
5658 | // XXX: is this enough? Maybe check hleSoftCall? |
d148d265 |
5659 | void *beginning=start_block(); |
7139f3c8 |
5660 | u_int page=get_page(start); |
d148d265 |
5661 | |
7139f3c8 |
5662 | invalid_code[start>>12]=0; |
5663 | emit_movimm(start,0); |
643aeae3 |
5664 | emit_writeword(0,&pcaddr); |
b14b6a8f |
5665 | emit_jmp(new_dyna_leave); |
15776b68 |
5666 | literal_pool(0); |
d148d265 |
5667 | end_block(beginning); |
03f55e6b |
5668 | ll_add_flags(jump_in+page,start,state_rflags,(void *)beginning); |
7139f3c8 |
5669 | return 0; |
5670 | } |
03f55e6b |
5671 | |
5672 | source = get_source_start(start, &pagelimit); |
5673 | if (source == NULL) { |
5674 | SysPrintf("Compile at bogus memory address: %08x\n", addr); |
57871462 |
5675 | exit(1); |
5676 | } |
5677 | |
5678 | /* Pass 1: disassemble */ |
5679 | /* Pass 2: register dependencies, branch targets */ |
5680 | /* Pass 3: register allocation */ |
5681 | /* Pass 4: branch dependencies */ |
5682 | /* Pass 5: pre-alloc */ |
5683 | /* Pass 6: optimize clean/dirty state */ |
5684 | /* Pass 7: flag 32-bit registers */ |
5685 | /* Pass 8: assembly */ |
5686 | /* Pass 9: linker */ |
5687 | /* Pass 10: garbage collection / free memory */ |
5688 | |
03f55e6b |
5689 | int j; |
57871462 |
5690 | int done=0; |
5691 | unsigned int type,op,op2; |
5692 | |
5693 | //printf("addr = %x source = %x %x\n", addr,source,source[0]); |
9f51b4b9 |
5694 | |
57871462 |
5695 | /* Pass 1 disassembly */ |
5696 | |
5697 | for(i=0;!done;i++) { |
e1190b87 |
5698 | bt[i]=0;likely[i]=0;ooo[i]=0;op2=0; |
5699 | minimum_free_regs[i]=0; |
57871462 |
5700 | opcode[i]=op=source[i]>>26; |
5701 | switch(op) |
5702 | { |
5703 | case 0x00: strcpy(insn[i],"special"); type=NI; |
5704 | op2=source[i]&0x3f; |
5705 | switch(op2) |
5706 | { |
5707 | case 0x00: strcpy(insn[i],"SLL"); type=SHIFTIMM; break; |
5708 | case 0x02: strcpy(insn[i],"SRL"); type=SHIFTIMM; break; |
5709 | case 0x03: strcpy(insn[i],"SRA"); type=SHIFTIMM; break; |
5710 | case 0x04: strcpy(insn[i],"SLLV"); type=SHIFT; break; |
5711 | case 0x06: strcpy(insn[i],"SRLV"); type=SHIFT; break; |
5712 | case 0x07: strcpy(insn[i],"SRAV"); type=SHIFT; break; |
5713 | case 0x08: strcpy(insn[i],"JR"); type=RJUMP; break; |
5714 | case 0x09: strcpy(insn[i],"JALR"); type=RJUMP; break; |
5715 | case 0x0C: strcpy(insn[i],"SYSCALL"); type=SYSCALL; break; |
5716 | case 0x0D: strcpy(insn[i],"BREAK"); type=OTHER; break; |
5717 | case 0x0F: strcpy(insn[i],"SYNC"); type=OTHER; break; |
5718 | case 0x10: strcpy(insn[i],"MFHI"); type=MOV; break; |
5719 | case 0x11: strcpy(insn[i],"MTHI"); type=MOV; break; |
5720 | case 0x12: strcpy(insn[i],"MFLO"); type=MOV; break; |
5721 | case 0x13: strcpy(insn[i],"MTLO"); type=MOV; break; |
57871462 |
5722 | case 0x18: strcpy(insn[i],"MULT"); type=MULTDIV; break; |
5723 | case 0x19: strcpy(insn[i],"MULTU"); type=MULTDIV; break; |
5724 | case 0x1A: strcpy(insn[i],"DIV"); type=MULTDIV; break; |
5725 | case 0x1B: strcpy(insn[i],"DIVU"); type=MULTDIV; break; |
57871462 |
5726 | case 0x20: strcpy(insn[i],"ADD"); type=ALU; break; |
5727 | case 0x21: strcpy(insn[i],"ADDU"); type=ALU; break; |
5728 | case 0x22: strcpy(insn[i],"SUB"); type=ALU; break; |
5729 | case 0x23: strcpy(insn[i],"SUBU"); type=ALU; break; |
5730 | case 0x24: strcpy(insn[i],"AND"); type=ALU; break; |
5731 | case 0x25: strcpy(insn[i],"OR"); type=ALU; break; |
5732 | case 0x26: strcpy(insn[i],"XOR"); type=ALU; break; |
5733 | case 0x27: strcpy(insn[i],"NOR"); type=ALU; break; |
5734 | case 0x2A: strcpy(insn[i],"SLT"); type=ALU; break; |
5735 | case 0x2B: strcpy(insn[i],"SLTU"); type=ALU; break; |
57871462 |
5736 | case 0x30: strcpy(insn[i],"TGE"); type=NI; break; |
5737 | case 0x31: strcpy(insn[i],"TGEU"); type=NI; break; |
5738 | case 0x32: strcpy(insn[i],"TLT"); type=NI; break; |
5739 | case 0x33: strcpy(insn[i],"TLTU"); type=NI; break; |
5740 | case 0x34: strcpy(insn[i],"TEQ"); type=NI; break; |
5741 | case 0x36: strcpy(insn[i],"TNE"); type=NI; break; |
71e490c5 |
5742 | #if 0 |
7f2607ea |
5743 | case 0x14: strcpy(insn[i],"DSLLV"); type=SHIFT; break; |
5744 | case 0x16: strcpy(insn[i],"DSRLV"); type=SHIFT; break; |
5745 | case 0x17: strcpy(insn[i],"DSRAV"); type=SHIFT; break; |
5746 | case 0x1C: strcpy(insn[i],"DMULT"); type=MULTDIV; break; |
5747 | case 0x1D: strcpy(insn[i],"DMULTU"); type=MULTDIV; break; |
5748 | case 0x1E: strcpy(insn[i],"DDIV"); type=MULTDIV; break; |
5749 | case 0x1F: strcpy(insn[i],"DDIVU"); type=MULTDIV; break; |
5750 | case 0x2C: strcpy(insn[i],"DADD"); type=ALU; break; |
5751 | case 0x2D: strcpy(insn[i],"DADDU"); type=ALU; break; |
5752 | case 0x2E: strcpy(insn[i],"DSUB"); type=ALU; break; |
5753 | case 0x2F: strcpy(insn[i],"DSUBU"); type=ALU; break; |
57871462 |
5754 | case 0x38: strcpy(insn[i],"DSLL"); type=SHIFTIMM; break; |
5755 | case 0x3A: strcpy(insn[i],"DSRL"); type=SHIFTIMM; break; |
5756 | case 0x3B: strcpy(insn[i],"DSRA"); type=SHIFTIMM; break; |
5757 | case 0x3C: strcpy(insn[i],"DSLL32"); type=SHIFTIMM; break; |
5758 | case 0x3E: strcpy(insn[i],"DSRL32"); type=SHIFTIMM; break; |
5759 | case 0x3F: strcpy(insn[i],"DSRA32"); type=SHIFTIMM; break; |
7f2607ea |
5760 | #endif |
57871462 |
5761 | } |
5762 | break; |
5763 | case 0x01: strcpy(insn[i],"regimm"); type=NI; |
5764 | op2=(source[i]>>16)&0x1f; |
5765 | switch(op2) |
5766 | { |
5767 | case 0x00: strcpy(insn[i],"BLTZ"); type=SJUMP; break; |
5768 | case 0x01: strcpy(insn[i],"BGEZ"); type=SJUMP; break; |
5769 | case 0x02: strcpy(insn[i],"BLTZL"); type=SJUMP; break; |
5770 | case 0x03: strcpy(insn[i],"BGEZL"); type=SJUMP; break; |
5771 | case 0x08: strcpy(insn[i],"TGEI"); type=NI; break; |
5772 | case 0x09: strcpy(insn[i],"TGEIU"); type=NI; break; |
5773 | case 0x0A: strcpy(insn[i],"TLTI"); type=NI; break; |
5774 | case 0x0B: strcpy(insn[i],"TLTIU"); type=NI; break; |
5775 | case 0x0C: strcpy(insn[i],"TEQI"); type=NI; break; |
5776 | case 0x0E: strcpy(insn[i],"TNEI"); type=NI; break; |
5777 | case 0x10: strcpy(insn[i],"BLTZAL"); type=SJUMP; break; |
5778 | case 0x11: strcpy(insn[i],"BGEZAL"); type=SJUMP; break; |
5779 | case 0x12: strcpy(insn[i],"BLTZALL"); type=SJUMP; break; |
5780 | case 0x13: strcpy(insn[i],"BGEZALL"); type=SJUMP; break; |
5781 | } |
5782 | break; |
5783 | case 0x02: strcpy(insn[i],"J"); type=UJUMP; break; |
5784 | case 0x03: strcpy(insn[i],"JAL"); type=UJUMP; break; |
5785 | case 0x04: strcpy(insn[i],"BEQ"); type=CJUMP; break; |
5786 | case 0x05: strcpy(insn[i],"BNE"); type=CJUMP; break; |
5787 | case 0x06: strcpy(insn[i],"BLEZ"); type=CJUMP; break; |
5788 | case 0x07: strcpy(insn[i],"BGTZ"); type=CJUMP; break; |
5789 | case 0x08: strcpy(insn[i],"ADDI"); type=IMM16; break; |
5790 | case 0x09: strcpy(insn[i],"ADDIU"); type=IMM16; break; |
5791 | case 0x0A: strcpy(insn[i],"SLTI"); type=IMM16; break; |
5792 | case 0x0B: strcpy(insn[i],"SLTIU"); type=IMM16; break; |
5793 | case 0x0C: strcpy(insn[i],"ANDI"); type=IMM16; break; |
5794 | case 0x0D: strcpy(insn[i],"ORI"); type=IMM16; break; |
5795 | case 0x0E: strcpy(insn[i],"XORI"); type=IMM16; break; |
5796 | case 0x0F: strcpy(insn[i],"LUI"); type=IMM16; break; |
5797 | case 0x10: strcpy(insn[i],"cop0"); type=NI; |
5798 | op2=(source[i]>>21)&0x1f; |
5799 | switch(op2) |
5800 | { |
5801 | case 0x00: strcpy(insn[i],"MFC0"); type=COP0; break; |
00fa9369 |
5802 | case 0x02: strcpy(insn[i],"CFC0"); type=COP0; break; |
57871462 |
5803 | case 0x04: strcpy(insn[i],"MTC0"); type=COP0; break; |
00fa9369 |
5804 | case 0x06: strcpy(insn[i],"CTC0"); type=COP0; break; |
5805 | case 0x10: strcpy(insn[i],"RFE"); type=COP0; break; |
57871462 |
5806 | } |
5807 | break; |
00fa9369 |
5808 | case 0x11: strcpy(insn[i],"cop1"); type=COP1; |
57871462 |
5809 | op2=(source[i]>>21)&0x1f; |
57871462 |
5810 | break; |
71e490c5 |
5811 | #if 0 |
57871462 |
5812 | case 0x14: strcpy(insn[i],"BEQL"); type=CJUMP; break; |
5813 | case 0x15: strcpy(insn[i],"BNEL"); type=CJUMP; break; |
5814 | case 0x16: strcpy(insn[i],"BLEZL"); type=CJUMP; break; |
5815 | case 0x17: strcpy(insn[i],"BGTZL"); type=CJUMP; break; |
5816 | case 0x18: strcpy(insn[i],"DADDI"); type=IMM16; break; |
5817 | case 0x19: strcpy(insn[i],"DADDIU"); type=IMM16; break; |
5818 | case 0x1A: strcpy(insn[i],"LDL"); type=LOADLR; break; |
5819 | case 0x1B: strcpy(insn[i],"LDR"); type=LOADLR; break; |
996cc15d |
5820 | #endif |
57871462 |
5821 | case 0x20: strcpy(insn[i],"LB"); type=LOAD; break; |
5822 | case 0x21: strcpy(insn[i],"LH"); type=LOAD; break; |
5823 | case 0x22: strcpy(insn[i],"LWL"); type=LOADLR; break; |
5824 | case 0x23: strcpy(insn[i],"LW"); type=LOAD; break; |
5825 | case 0x24: strcpy(insn[i],"LBU"); type=LOAD; break; |
5826 | case 0x25: strcpy(insn[i],"LHU"); type=LOAD; break; |
5827 | case 0x26: strcpy(insn[i],"LWR"); type=LOADLR; break; |
71e490c5 |
5828 | #if 0 |
57871462 |
5829 | case 0x27: strcpy(insn[i],"LWU"); type=LOAD; break; |
64bd6f82 |
5830 | #endif |
57871462 |
5831 | case 0x28: strcpy(insn[i],"SB"); type=STORE; break; |
5832 | case 0x29: strcpy(insn[i],"SH"); type=STORE; break; |
5833 | case 0x2A: strcpy(insn[i],"SWL"); type=STORELR; break; |
5834 | case 0x2B: strcpy(insn[i],"SW"); type=STORE; break; |
71e490c5 |
5835 | #if 0 |
57871462 |
5836 | case 0x2C: strcpy(insn[i],"SDL"); type=STORELR; break; |
5837 | case 0x2D: strcpy(insn[i],"SDR"); type=STORELR; break; |
996cc15d |
5838 | #endif |
57871462 |
5839 | case 0x2E: strcpy(insn[i],"SWR"); type=STORELR; break; |
5840 | case 0x2F: strcpy(insn[i],"CACHE"); type=NOP; break; |
5841 | case 0x30: strcpy(insn[i],"LL"); type=NI; break; |
5842 | case 0x31: strcpy(insn[i],"LWC1"); type=C1LS; break; |
71e490c5 |
5843 | #if 0 |
57871462 |
5844 | case 0x34: strcpy(insn[i],"LLD"); type=NI; break; |
5845 | case 0x35: strcpy(insn[i],"LDC1"); type=C1LS; break; |
5846 | case 0x37: strcpy(insn[i],"LD"); type=LOAD; break; |
996cc15d |
5847 | #endif |
57871462 |
5848 | case 0x38: strcpy(insn[i],"SC"); type=NI; break; |
5849 | case 0x39: strcpy(insn[i],"SWC1"); type=C1LS; break; |
71e490c5 |
5850 | #if 0 |
57871462 |
5851 | case 0x3C: strcpy(insn[i],"SCD"); type=NI; break; |
5852 | case 0x3D: strcpy(insn[i],"SDC1"); type=C1LS; break; |
5853 | case 0x3F: strcpy(insn[i],"SD"); type=STORE; break; |
996cc15d |
5854 | #endif |
b9b61529 |
5855 | case 0x12: strcpy(insn[i],"COP2"); type=NI; |
5856 | op2=(source[i]>>21)&0x1f; |
bedfea38 |
5857 | //if (op2 & 0x10) { |
5858 | if (source[i]&0x3f) { // use this hack to support old savestates with patched gte insns |
c7abc864 |
5859 | if (gte_handlers[source[i]&0x3f]!=NULL) { |
bedfea38 |
5860 | if (gte_regnames[source[i]&0x3f]!=NULL) |
5861 | strcpy(insn[i],gte_regnames[source[i]&0x3f]); |
5862 | else |
5863 | snprintf(insn[i], sizeof(insn[i]), "COP2 %x", source[i]&0x3f); |
c7abc864 |
5864 | type=C2OP; |
5865 | } |
5866 | } |
5867 | else switch(op2) |
b9b61529 |
5868 | { |
5869 | case 0x00: strcpy(insn[i],"MFC2"); type=COP2; break; |
5870 | case 0x02: strcpy(insn[i],"CFC2"); type=COP2; break; |
5871 | case 0x04: strcpy(insn[i],"MTC2"); type=COP2; break; |
5872 | case 0x06: strcpy(insn[i],"CTC2"); type=COP2; break; |
b9b61529 |
5873 | } |
5874 | break; |
5875 | case 0x32: strcpy(insn[i],"LWC2"); type=C2LS; break; |
5876 | case 0x3A: strcpy(insn[i],"SWC2"); type=C2LS; break; |
5877 | case 0x3B: strcpy(insn[i],"HLECALL"); type=HLECALL; break; |
90ae6d4e |
5878 | default: strcpy(insn[i],"???"); type=NI; |
c43b5311 |
5879 | SysPrintf("NI %08x @%08x (%08x)\n", source[i], addr + i*4, addr); |
90ae6d4e |
5880 | break; |
57871462 |
5881 | } |
5882 | itype[i]=type; |
5883 | opcode2[i]=op2; |
5884 | /* Get registers/immediates */ |
5885 | lt1[i]=0; |
5886 | us1[i]=0; |
5887 | us2[i]=0; |
5888 | dep1[i]=0; |
5889 | dep2[i]=0; |
bedfea38 |
5890 | gte_rs[i]=gte_rt[i]=0; |
57871462 |
5891 | switch(type) { |
5892 | case LOAD: |
5893 | rs1[i]=(source[i]>>21)&0x1f; |
5894 | rs2[i]=0; |
5895 | rt1[i]=(source[i]>>16)&0x1f; |
5896 | rt2[i]=0; |
5897 | imm[i]=(short)source[i]; |
5898 | break; |
5899 | case STORE: |
5900 | case STORELR: |
5901 | rs1[i]=(source[i]>>21)&0x1f; |
5902 | rs2[i]=(source[i]>>16)&0x1f; |
5903 | rt1[i]=0; |
5904 | rt2[i]=0; |
5905 | imm[i]=(short)source[i]; |
5906 | if(op==0x2c||op==0x2d||op==0x3f) us1[i]=rs2[i]; // 64-bit SDL/SDR/SD |
5907 | break; |
5908 | case LOADLR: |
5909 | // LWL/LWR only load part of the register, |
5910 | // therefore the target register must be treated as a source too |
5911 | rs1[i]=(source[i]>>21)&0x1f; |
5912 | rs2[i]=(source[i]>>16)&0x1f; |
5913 | rt1[i]=(source[i]>>16)&0x1f; |
5914 | rt2[i]=0; |
5915 | imm[i]=(short)source[i]; |
5916 | if(op==0x1a||op==0x1b) us1[i]=rs2[i]; // LDR/LDL |
5917 | if(op==0x26) dep1[i]=rt1[i]; // LWR |
5918 | break; |
5919 | case IMM16: |
5920 | if (op==0x0f) rs1[i]=0; // LUI instruction has no source register |
5921 | else rs1[i]=(source[i]>>21)&0x1f; |
5922 | rs2[i]=0; |
5923 | rt1[i]=(source[i]>>16)&0x1f; |
5924 | rt2[i]=0; |
5925 | if(op>=0x0c&&op<=0x0e) { // ANDI/ORI/XORI |
5926 | imm[i]=(unsigned short)source[i]; |
5927 | }else{ |
5928 | imm[i]=(short)source[i]; |
5929 | } |
5930 | if(op==0x18||op==0x19) us1[i]=rs1[i]; // DADDI/DADDIU |
5931 | if(op==0x0a||op==0x0b) us1[i]=rs1[i]; // SLTI/SLTIU |
5932 | if(op==0x0d||op==0x0e) dep1[i]=rs1[i]; // ORI/XORI |
5933 | break; |
5934 | case UJUMP: |
5935 | rs1[i]=0; |
5936 | rs2[i]=0; |
5937 | rt1[i]=0; |
5938 | rt2[i]=0; |
5939 | // The JAL instruction writes to r31. |
5940 | if (op&1) { |
5941 | rt1[i]=31; |
5942 | } |
5943 | rs2[i]=CCREG; |
5944 | break; |
5945 | case RJUMP: |
5946 | rs1[i]=(source[i]>>21)&0x1f; |
5947 | rs2[i]=0; |
5948 | rt1[i]=0; |
5949 | rt2[i]=0; |
5067f341 |
5950 | // The JALR instruction writes to rd. |
57871462 |
5951 | if (op2&1) { |
5067f341 |
5952 | rt1[i]=(source[i]>>11)&0x1f; |
57871462 |
5953 | } |
5954 | rs2[i]=CCREG; |
5955 | break; |
5956 | case CJUMP: |
5957 | rs1[i]=(source[i]>>21)&0x1f; |
5958 | rs2[i]=(source[i]>>16)&0x1f; |
5959 | rt1[i]=0; |
5960 | rt2[i]=0; |
5961 | if(op&2) { // BGTZ/BLEZ |
5962 | rs2[i]=0; |
5963 | } |
5964 | us1[i]=rs1[i]; |
5965 | us2[i]=rs2[i]; |
5966 | likely[i]=op>>4; |
5967 | break; |
5968 | case SJUMP: |
5969 | rs1[i]=(source[i]>>21)&0x1f; |
5970 | rs2[i]=CCREG; |
5971 | rt1[i]=0; |
5972 | rt2[i]=0; |
5973 | us1[i]=rs1[i]; |
5974 | if(op2&0x10) { // BxxAL |
5975 | rt1[i]=31; |
5976 | // NOTE: If the branch is not taken, r31 is still overwritten |
5977 | } |
5978 | likely[i]=(op2&2)>>1; |
5979 | break; |
57871462 |
5980 | case ALU: |
5981 | rs1[i]=(source[i]>>21)&0x1f; // source |
5982 | rs2[i]=(source[i]>>16)&0x1f; // subtract amount |
5983 | rt1[i]=(source[i]>>11)&0x1f; // destination |
5984 | rt2[i]=0; |
5985 | if(op2==0x2a||op2==0x2b) { // SLT/SLTU |
5986 | us1[i]=rs1[i];us2[i]=rs2[i]; |
5987 | } |
5988 | else if(op2>=0x24&&op2<=0x27) { // AND/OR/XOR/NOR |
5989 | dep1[i]=rs1[i];dep2[i]=rs2[i]; |
5990 | } |
5991 | else if(op2>=0x2c&&op2<=0x2f) { // DADD/DSUB |
5992 | dep1[i]=rs1[i];dep2[i]=rs2[i]; |
5993 | } |
5994 | break; |
5995 | case MULTDIV: |
5996 | rs1[i]=(source[i]>>21)&0x1f; // source |
5997 | rs2[i]=(source[i]>>16)&0x1f; // divisor |
5998 | rt1[i]=HIREG; |
5999 | rt2[i]=LOREG; |
6000 | if (op2>=0x1c&&op2<=0x1f) { // DMULT/DMULTU/DDIV/DDIVU |
6001 | us1[i]=rs1[i];us2[i]=rs2[i]; |
6002 | } |
6003 | break; |
6004 | case MOV: |
6005 | rs1[i]=0; |
6006 | rs2[i]=0; |
6007 | rt1[i]=0; |
6008 | rt2[i]=0; |
6009 | if(op2==0x10) rs1[i]=HIREG; // MFHI |
6010 | if(op2==0x11) rt1[i]=HIREG; // MTHI |
6011 | if(op2==0x12) rs1[i]=LOREG; // MFLO |
6012 | if(op2==0x13) rt1[i]=LOREG; // MTLO |
6013 | if((op2&0x1d)==0x10) rt1[i]=(source[i]>>11)&0x1f; // MFxx |
6014 | if((op2&0x1d)==0x11) rs1[i]=(source[i]>>21)&0x1f; // MTxx |
6015 | dep1[i]=rs1[i]; |
6016 | break; |
6017 | case SHIFT: |
6018 | rs1[i]=(source[i]>>16)&0x1f; // target of shift |
6019 | rs2[i]=(source[i]>>21)&0x1f; // shift amount |
6020 | rt1[i]=(source[i]>>11)&0x1f; // destination |
6021 | rt2[i]=0; |
6022 | // DSLLV/DSRLV/DSRAV are 64-bit |
6023 | if(op2>=0x14&&op2<=0x17) us1[i]=rs1[i]; |
6024 | break; |
6025 | case SHIFTIMM: |
6026 | rs1[i]=(source[i]>>16)&0x1f; |
6027 | rs2[i]=0; |
6028 | rt1[i]=(source[i]>>11)&0x1f; |
6029 | rt2[i]=0; |
6030 | imm[i]=(source[i]>>6)&0x1f; |
6031 | // DSxx32 instructions |
6032 | if(op2>=0x3c) imm[i]|=0x20; |
6033 | // DSLL/DSRL/DSRA/DSRA32/DSRL32 but not DSLL32 require 64-bit source |
6034 | if(op2>=0x38&&op2!=0x3c) us1[i]=rs1[i]; |
6035 | break; |
6036 | case COP0: |
6037 | rs1[i]=0; |
6038 | rs2[i]=0; |
6039 | rt1[i]=0; |
6040 | rt2[i]=0; |
00fa9369 |
6041 | if(op2==0||op2==2) rt1[i]=(source[i]>>16)&0x1F; // MFC0/CFC0 |
6042 | if(op2==4||op2==6) rs1[i]=(source[i]>>16)&0x1F; // MTC0/CTC0 |
57871462 |
6043 | if(op2==4&&((source[i]>>11)&0x1f)==12) rt2[i]=CSREG; // Status |
6044 | if(op2==16) if((source[i]&0x3f)==0x18) rs2[i]=CCREG; // ERET |
6045 | break; |
6046 | case COP1: |
6047 | rs1[i]=0; |
6048 | rs2[i]=0; |
6049 | rt1[i]=0; |
6050 | rt2[i]=0; |
6051 | if(op2<3) rt1[i]=(source[i]>>16)&0x1F; // MFC1/DMFC1/CFC1 |
6052 | if(op2>3) rs1[i]=(source[i]>>16)&0x1F; // MTC1/DMTC1/CTC1 |
6053 | if(op2==5) us1[i]=rs1[i]; // DMTC1 |
6054 | rs2[i]=CSREG; |
6055 | break; |
bedfea38 |
6056 | case COP2: |
6057 | rs1[i]=0; |
6058 | rs2[i]=0; |
6059 | rt1[i]=0; |
6060 | rt2[i]=0; |
6061 | if(op2<3) rt1[i]=(source[i]>>16)&0x1F; // MFC2/CFC2 |
6062 | if(op2>3) rs1[i]=(source[i]>>16)&0x1F; // MTC2/CTC2 |
6063 | rs2[i]=CSREG; |
6064 | int gr=(source[i]>>11)&0x1F; |
6065 | switch(op2) |
6066 | { |
6067 | case 0x00: gte_rs[i]=1ll<<gr; break; // MFC2 |
6068 | case 0x04: gte_rt[i]=1ll<<gr; break; // MTC2 |
0ff8c62c |
6069 | case 0x02: gte_rs[i]=1ll<<(gr+32); break; // CFC2 |
bedfea38 |
6070 | case 0x06: gte_rt[i]=1ll<<(gr+32); break; // CTC2 |
6071 | } |
6072 | break; |
57871462 |
6073 | case C1LS: |
6074 | rs1[i]=(source[i]>>21)&0x1F; |
6075 | rs2[i]=CSREG; |
6076 | rt1[i]=0; |
6077 | rt2[i]=0; |
6078 | imm[i]=(short)source[i]; |
6079 | break; |
b9b61529 |
6080 | case C2LS: |
6081 | rs1[i]=(source[i]>>21)&0x1F; |
6082 | rs2[i]=0; |
6083 | rt1[i]=0; |
6084 | rt2[i]=0; |
6085 | imm[i]=(short)source[i]; |
bedfea38 |
6086 | if(op==0x32) gte_rt[i]=1ll<<((source[i]>>16)&0x1F); // LWC2 |
6087 | else gte_rs[i]=1ll<<((source[i]>>16)&0x1F); // SWC2 |
6088 | break; |
6089 | case C2OP: |
6090 | rs1[i]=0; |
6091 | rs2[i]=0; |
6092 | rt1[i]=0; |
6093 | rt2[i]=0; |
2167bef6 |
6094 | gte_rs[i]=gte_reg_reads[source[i]&0x3f]; |
6095 | gte_rt[i]=gte_reg_writes[source[i]&0x3f]; |
6096 | gte_rt[i]|=1ll<<63; // every op changes flags |
587a5b1c |
6097 | if((source[i]&0x3f)==GTE_MVMVA) { |
6098 | int v = (source[i] >> 15) & 3; |
6099 | gte_rs[i]&=~0xe3fll; |
6100 | if(v==3) gte_rs[i]|=0xe00ll; |
6101 | else gte_rs[i]|=3ll<<(v*2); |
6102 | } |
b9b61529 |
6103 | break; |
57871462 |
6104 | case SYSCALL: |
7139f3c8 |
6105 | case HLECALL: |
1e973cb0 |
6106 | case INTCALL: |
57871462 |
6107 | rs1[i]=CCREG; |
6108 | rs2[i]=0; |
6109 | rt1[i]=0; |
6110 | rt2[i]=0; |
6111 | break; |
6112 | default: |
6113 | rs1[i]=0; |
6114 | rs2[i]=0; |
6115 | rt1[i]=0; |
6116 | rt2[i]=0; |
6117 | } |
6118 | /* Calculate branch target addresses */ |
6119 | if(type==UJUMP) |
6120 | ba[i]=((start+i*4+4)&0xF0000000)|(((unsigned int)source[i]<<6)>>4); |
6121 | else if(type==CJUMP&&rs1[i]==rs2[i]&&(op&1)) |
6122 | ba[i]=start+i*4+8; // Ignore never taken branch |
6123 | else if(type==SJUMP&&rs1[i]==0&&!(op2&1)) |
6124 | ba[i]=start+i*4+8; // Ignore never taken branch |
ad49de89 |
6125 | else if(type==CJUMP||type==SJUMP) |
57871462 |
6126 | ba[i]=start+i*4+4+((signed int)((unsigned int)source[i]<<16)>>14); |
6127 | else ba[i]=-1; |
ad49de89 |
6128 | if(i>0&&(itype[i-1]==RJUMP||itype[i-1]==UJUMP||itype[i-1]==CJUMP||itype[i-1]==SJUMP)) { |
3e535354 |
6129 | int do_in_intrp=0; |
6130 | // branch in delay slot? |
ad49de89 |
6131 | if(type==RJUMP||type==UJUMP||type==CJUMP||type==SJUMP) { |
3e535354 |
6132 | // don't handle first branch and call interpreter if it's hit |
c43b5311 |
6133 | SysPrintf("branch in delay slot @%08x (%08x)\n", addr + i*4, addr); |
3e535354 |
6134 | do_in_intrp=1; |
6135 | } |
6136 | // basic load delay detection |
6137 | else if((type==LOAD||type==LOADLR||type==COP0||type==COP2||type==C2LS)&&rt1[i]!=0) { |
6138 | int t=(ba[i-1]-start)/4; |
6139 | if(0 <= t && t < i &&(rt1[i]==rs1[t]||rt1[i]==rs2[t])&&itype[t]!=CJUMP&&itype[t]!=SJUMP) { |
6140 | // jump target wants DS result - potential load delay effect |
c43b5311 |
6141 | SysPrintf("load delay @%08x (%08x)\n", addr + i*4, addr); |
3e535354 |
6142 | do_in_intrp=1; |
6143 | bt[t+1]=1; // expected return from interpreter |
6144 | } |
6145 | 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&& |
6146 | !(i>=3&&(itype[i-3]==RJUMP||itype[i-3]==UJUMP||itype[i-3]==CJUMP||itype[i-3]==SJUMP))) { |
6147 | // v0 overwrite like this is a sign of trouble, bail out |
c43b5311 |
6148 | SysPrintf("v0 overwrite @%08x (%08x)\n", addr + i*4, addr); |
3e535354 |
6149 | do_in_intrp=1; |
6150 | } |
6151 | } |
3e535354 |
6152 | if(do_in_intrp) { |
6153 | rs1[i-1]=CCREG; |
6154 | rs2[i-1]=rt1[i-1]=rt2[i-1]=0; |
26869094 |
6155 | ba[i-1]=-1; |
6156 | itype[i-1]=INTCALL; |
6157 | done=2; |
3e535354 |
6158 | i--; // don't compile the DS |
26869094 |
6159 | } |
3e535354 |
6160 | } |
3e535354 |
6161 | /* Is this the end of the block? */ |
6162 | if(i>0&&(itype[i-1]==UJUMP||itype[i-1]==RJUMP||(source[i-1]>>16)==0x1000)) { |
5067f341 |
6163 | if(rt1[i-1]==0) { // Continue past subroutine call (JAL) |
1e973cb0 |
6164 | done=2; |
57871462 |
6165 | } |
6166 | else { |
6167 | if(stop_after_jal) done=1; |
6168 | // Stop on BREAK |
6169 | if((source[i+1]&0xfc00003f)==0x0d) done=1; |
6170 | } |
6171 | // Don't recompile stuff that's already compiled |
6172 | if(check_addr(start+i*4+4)) done=1; |
6173 | // Don't get too close to the limit |
6174 | if(i>MAXBLOCK/2) done=1; |
6175 | } |
75dec299 |
6176 | if(itype[i]==SYSCALL&&stop_after_jal) done=1; |
1e973cb0 |
6177 | if(itype[i]==HLECALL||itype[i]==INTCALL) done=2; |
6178 | if(done==2) { |
6179 | // Does the block continue due to a branch? |
6180 | for(j=i-1;j>=0;j--) |
6181 | { |
2a706964 |
6182 | if(ba[j]==start+i*4) done=j=0; // Branch into delay slot |
1e973cb0 |
6183 | if(ba[j]==start+i*4+4) done=j=0; |
6184 | if(ba[j]==start+i*4+8) done=j=0; |
6185 | } |
6186 | } |
75dec299 |
6187 | //assert(i<MAXBLOCK-1); |
57871462 |
6188 | if(start+i*4==pagelimit-4) done=1; |
6189 | assert(start+i*4<pagelimit); |
6190 | if (i==MAXBLOCK-1) done=1; |
6191 | // Stop if we're compiling junk |
6192 | if(itype[i]==NI&&opcode[i]==0x11) { |
6193 | done=stop_after_jal=1; |
c43b5311 |
6194 | SysPrintf("Disabled speculative precompilation\n"); |
57871462 |
6195 | } |
6196 | } |
6197 | slen=i; |
ad49de89 |
6198 | if(itype[i-1]==UJUMP||itype[i-1]==CJUMP||itype[i-1]==SJUMP||itype[i-1]==RJUMP) { |
57871462 |
6199 | if(start+i*4==pagelimit) { |
6200 | itype[i-1]=SPAN; |
6201 | } |
6202 | } |
6203 | assert(slen>0); |
6204 | |
6205 | /* Pass 2 - Register dependencies and branch targets */ |
6206 | |
6207 | unneeded_registers(0,slen-1,0); |
9f51b4b9 |
6208 | |
57871462 |
6209 | /* Pass 3 - Register allocation */ |
6210 | |
6211 | struct regstat current; // Current register allocations/status |
57871462 |
6212 | current.dirty=0; |
6213 | current.u=unneeded_reg[0]; |
57871462 |
6214 | clear_all_regs(current.regmap); |
6215 | alloc_reg(¤t,0,CCREG); |
6216 | dirty_reg(¤t,CCREG); |
6217 | current.isconst=0; |
6218 | current.wasconst=0; |
27727b63 |
6219 | current.waswritten=0; |
57871462 |
6220 | int ds=0; |
6221 | int cc=0; |
5194fb95 |
6222 | int hr=-1; |
6ebf4adf |
6223 | |
57871462 |
6224 | if((u_int)addr&1) { |
6225 | // First instruction is delay slot |
6226 | cc=-1; |
6227 | bt[1]=1; |
6228 | ds=1; |
6229 | unneeded_reg[0]=1; |
57871462 |
6230 | current.regmap[HOST_BTREG]=BTREG; |
6231 | } |
9f51b4b9 |
6232 | |
57871462 |
6233 | for(i=0;i<slen;i++) |
6234 | { |
6235 | if(bt[i]) |
6236 | { |
6237 | int hr; |
6238 | for(hr=0;hr<HOST_REGS;hr++) |
6239 | { |
6240 | // Is this really necessary? |
6241 | if(current.regmap[hr]==0) current.regmap[hr]=-1; |
6242 | } |
6243 | current.isconst=0; |
27727b63 |
6244 | current.waswritten=0; |
57871462 |
6245 | } |
6246 | if(i>1) |
6247 | { |
6248 | if((opcode[i-2]&0x2f)==0x05) // BNE/BNEL |
6249 | { |
6250 | if(rs1[i-2]==0||rs2[i-2]==0) |
6251 | { |
6252 | if(rs1[i-2]) { |
57871462 |
6253 | int hr=get_reg(current.regmap,rs1[i-2]|64); |
6254 | if(hr>=0) current.regmap[hr]=-1; |
6255 | } |
6256 | if(rs2[i-2]) { |
57871462 |
6257 | int hr=get_reg(current.regmap,rs2[i-2]|64); |
6258 | if(hr>=0) current.regmap[hr]=-1; |
6259 | } |
6260 | } |
6261 | } |
6262 | } |
24385cae |
6263 | |
57871462 |
6264 | memcpy(regmap_pre[i],current.regmap,sizeof(current.regmap)); |
6265 | regs[i].wasconst=current.isconst; |
57871462 |
6266 | regs[i].wasdirty=current.dirty; |
8575a877 |
6267 | regs[i].loadedconst=0; |
ad49de89 |
6268 | if(itype[i]!=UJUMP&&itype[i]!=CJUMP&&itype[i]!=SJUMP&&itype[i]!=RJUMP) { |
57871462 |
6269 | if(i+1<slen) { |
6270 | current.u=unneeded_reg[i+1]&~((1LL<<rs1[i])|(1LL<<rs2[i])); |
57871462 |
6271 | current.u|=1; |
57871462 |
6272 | } else { |
6273 | current.u=1; |
57871462 |
6274 | } |
6275 | } else { |
6276 | if(i+1<slen) { |
6277 | current.u=branch_unneeded_reg[i]&~((1LL<<rs1[i+1])|(1LL<<rs2[i+1])); |
57871462 |
6278 | current.u&=~((1LL<<rs1[i])|(1LL<<rs2[i])); |
57871462 |
6279 | current.u|=1; |
c43b5311 |
6280 | } else { SysPrintf("oops, branch at end of block with no delay slot\n");exit(1); } |
57871462 |
6281 | } |
6282 | is_ds[i]=ds; |
6283 | if(ds) { |
6284 | ds=0; // Skip delay slot, already allocated as part of branch |
6285 | // ...but we need to alloc it in case something jumps here |
6286 | if(i+1<slen) { |
6287 | current.u=branch_unneeded_reg[i-1]&unneeded_reg[i+1]; |
57871462 |
6288 | }else{ |
6289 | current.u=branch_unneeded_reg[i-1]; |
57871462 |
6290 | } |
6291 | current.u&=~((1LL<<rs1[i])|(1LL<<rs2[i])); |
57871462 |
6292 | current.u|=1; |
57871462 |
6293 | struct regstat temp; |
6294 | memcpy(&temp,¤t,sizeof(current)); |
6295 | temp.wasdirty=temp.dirty; |
57871462 |
6296 | // TODO: Take into account unconditional branches, as below |
6297 | delayslot_alloc(&temp,i); |
6298 | memcpy(regs[i].regmap,temp.regmap,sizeof(temp.regmap)); |
6299 | regs[i].wasdirty=temp.wasdirty; |
57871462 |
6300 | regs[i].dirty=temp.dirty; |
57871462 |
6301 | regs[i].isconst=0; |
6302 | regs[i].wasconst=0; |
6303 | current.isconst=0; |
6304 | // Create entry (branch target) regmap |
6305 | for(hr=0;hr<HOST_REGS;hr++) |
6306 | { |
6307 | int r=temp.regmap[hr]; |
6308 | if(r>=0) { |
6309 | if(r!=regmap_pre[i][hr]) { |
6310 | regs[i].regmap_entry[hr]=-1; |
6311 | } |
6312 | else |
6313 | { |
6314 | if(r<64){ |
6315 | if((current.u>>r)&1) { |
6316 | regs[i].regmap_entry[hr]=-1; |
6317 | regs[i].regmap[hr]=-1; |
6318 | //Don't clear regs in the delay slot as the branch might need them |
6319 | //current.regmap[hr]=-1; |
6320 | }else |
6321 | regs[i].regmap_entry[hr]=r; |
6322 | } |
6323 | else { |
00fa9369 |
6324 | assert(0); |
57871462 |
6325 | } |
6326 | } |
6327 | } else { |
6328 | // First instruction expects CCREG to be allocated |
9f51b4b9 |
6329 | if(i==0&&hr==HOST_CCREG) |
57871462 |
6330 | regs[i].regmap_entry[hr]=CCREG; |
6331 | else |
6332 | regs[i].regmap_entry[hr]=-1; |
6333 | } |
6334 | } |
6335 | } |
6336 | else { // Not delay slot |
6337 | switch(itype[i]) { |
6338 | case UJUMP: |
6339 | //current.isconst=0; // DEBUG |
6340 | //current.wasconst=0; // DEBUG |
6341 | //regs[i].wasconst=0; // DEBUG |
6342 | clear_const(¤t,rt1[i]); |
6343 | alloc_cc(¤t,i); |
6344 | dirty_reg(¤t,CCREG); |
6345 | if (rt1[i]==31) { |
6346 | alloc_reg(¤t,i,31); |
6347 | dirty_reg(¤t,31); |
4ef8f67d |
6348 | //assert(rs1[i+1]!=31&&rs2[i+1]!=31); |
6349 | //assert(rt1[i+1]!=rt1[i]); |
57871462 |
6350 | #ifdef REG_PREFETCH |
6351 | alloc_reg(¤t,i,PTEMP); |
6352 | #endif |
57871462 |
6353 | } |
269bb29a |
6354 | ooo[i]=1; |
6355 | delayslot_alloc(¤t,i+1); |
57871462 |
6356 | //current.isconst=0; // DEBUG |
6357 | ds=1; |
6358 | //printf("i=%d, isconst=%x\n",i,current.isconst); |
6359 | break; |
6360 | case RJUMP: |
6361 | //current.isconst=0; |
6362 | //current.wasconst=0; |
6363 | //regs[i].wasconst=0; |
6364 | clear_const(¤t,rs1[i]); |
6365 | clear_const(¤t,rt1[i]); |
6366 | alloc_cc(¤t,i); |
6367 | dirty_reg(¤t,CCREG); |
6368 | if(rs1[i]!=rt1[i+1]&&rs1[i]!=rt2[i+1]) { |
6369 | alloc_reg(¤t,i,rs1[i]); |
5067f341 |
6370 | if (rt1[i]!=0) { |
6371 | alloc_reg(¤t,i,rt1[i]); |
6372 | dirty_reg(¤t,rt1[i]); |
68b3faee |
6373 | assert(rs1[i+1]!=rt1[i]&&rs2[i+1]!=rt1[i]); |
076655d1 |
6374 | assert(rt1[i+1]!=rt1[i]); |
57871462 |
6375 | #ifdef REG_PREFETCH |
6376 | alloc_reg(¤t,i,PTEMP); |
6377 | #endif |
6378 | } |
6379 | #ifdef USE_MINI_HT |
6380 | if(rs1[i]==31) { // JALR |
6381 | alloc_reg(¤t,i,RHASH); |
57871462 |
6382 | alloc_reg(¤t,i,RHTBL); |
57871462 |
6383 | } |
6384 | #endif |
6385 | delayslot_alloc(¤t,i+1); |
6386 | } else { |
6387 | // The delay slot overwrites our source register, |
6388 | // allocate a temporary register to hold the old value. |
6389 | current.isconst=0; |
6390 | current.wasconst=0; |
6391 | regs[i].wasconst=0; |
6392 | delayslot_alloc(¤t,i+1); |
6393 | current.isconst=0; |
6394 | alloc_reg(¤t,i,RTEMP); |
6395 | } |
6396 | //current.isconst=0; // DEBUG |
e1190b87 |
6397 | ooo[i]=1; |
57871462 |
6398 | ds=1; |
6399 | break; |
6400 | case CJUMP: |
6401 | //current.isconst=0; |
6402 | //current.wasconst=0; |
6403 | //regs[i].wasconst=0; |
6404 | clear_const(¤t,rs1[i]); |
6405 | clear_const(¤t,rs2[i]); |
6406 | if((opcode[i]&0x3E)==4) // BEQ/BNE |
6407 | { |
6408 | alloc_cc(¤t,i); |
6409 | dirty_reg(¤t,CCREG); |
6410 | if(rs1[i]) alloc_reg(¤t,i,rs1[i]); |
6411 | if(rs2[i]) alloc_reg(¤t,i,rs2[i]); |
57871462 |
6412 | if((rs1[i]&&(rs1[i]==rt1[i+1]||rs1[i]==rt2[i+1]))|| |
6413 | (rs2[i]&&(rs2[i]==rt1[i+1]||rs2[i]==rt2[i+1]))) { |
6414 | // The delay slot overwrites one of our conditions. |
6415 | // Allocate the branch condition registers instead. |
57871462 |
6416 | current.isconst=0; |
6417 | current.wasconst=0; |
6418 | regs[i].wasconst=0; |
6419 | if(rs1[i]) alloc_reg(¤t,i,rs1[i]); |
6420 | if(rs2[i]) alloc_reg(¤t,i,rs2[i]); |
57871462 |
6421 | } |
e1190b87 |
6422 | else |
6423 | { |
6424 | ooo[i]=1; |
6425 | delayslot_alloc(¤t,i+1); |
6426 | } |
57871462 |
6427 | } |
6428 | else |
6429 | if((opcode[i]&0x3E)==6) // BLEZ/BGTZ |
6430 | { |
6431 | alloc_cc(¤t,i); |
6432 | dirty_reg(¤t,CCREG); |
6433 | alloc_reg(¤t,i,rs1[i]); |
57871462 |
6434 | if(rs1[i]&&(rs1[i]==rt1[i+1]||rs1[i]==rt2[i+1])) { |
6435 | // The delay slot overwrites one of our conditions. |
6436 | // Allocate the branch condition registers instead. |
57871462 |
6437 | current.isconst=0; |
6438 | current.wasconst=0; |
6439 | regs[i].wasconst=0; |
6440 | if(rs1[i]) alloc_reg(¤t,i,rs1[i]); |
57871462 |
6441 | } |
e1190b87 |
6442 | else |
6443 | { |
6444 | ooo[i]=1; |
6445 | delayslot_alloc(¤t,i+1); |
6446 | } |
57871462 |
6447 | } |
6448 | else |
6449 | // Don't alloc the delay slot yet because we might not execute it |
6450 | if((opcode[i]&0x3E)==0x14) // BEQL/BNEL |
6451 | { |
6452 | current.isconst=0; |
6453 | current.wasconst=0; |
6454 | regs[i].wasconst=0; |
6455 | alloc_cc(¤t,i); |
6456 | dirty_reg(¤t,CCREG); |
6457 | alloc_reg(¤t,i,rs1[i]); |
6458 | alloc_reg(¤t,i,rs2[i]); |
57871462 |
6459 | } |
6460 | else |
6461 | if((opcode[i]&0x3E)==0x16) // BLEZL/BGTZL |
6462 | { |
6463 | current.isconst=0; |
6464 | current.wasconst=0; |
6465 | regs[i].wasconst=0; |
6466 | alloc_cc(¤t,i); |
6467 | dirty_reg(¤t,CCREG); |
6468 | alloc_reg(¤t,i,rs1[i]); |
57871462 |
6469 | } |
6470 | ds=1; |
6471 | //current.isconst=0; |
6472 | break; |
6473 | case SJUMP: |
6474 | //current.isconst=0; |
6475 | //current.wasconst=0; |
6476 | //regs[i].wasconst=0; |
6477 | clear_const(¤t,rs1[i]); |
6478 | clear_const(¤t,rt1[i]); |
6479 | //if((opcode2[i]&0x1E)==0x0) // BLTZ/BGEZ |
6480 | if((opcode2[i]&0x0E)==0x0) // BLTZ/BGEZ |
6481 | { |
6482 | alloc_cc(¤t,i); |
6483 | dirty_reg(¤t,CCREG); |
6484 | alloc_reg(¤t,i,rs1[i]); |
57871462 |
6485 | if (rt1[i]==31) { // BLTZAL/BGEZAL |
6486 | alloc_reg(¤t,i,31); |
6487 | dirty_reg(¤t,31); |
57871462 |
6488 | //#ifdef REG_PREFETCH |
6489 | //alloc_reg(¤t,i,PTEMP); |
6490 | //#endif |
57871462 |
6491 | } |
e1190b87 |
6492 | if((rs1[i]&&(rs1[i]==rt1[i+1]||rs1[i]==rt2[i+1])) // The delay slot overwrites the branch condition. |
6493 | ||(rt1[i]==31&&(rs1[i+1]==31||rs2[i+1]==31||rt1[i+1]==31||rt2[i+1]==31))) { // DS touches $ra |
57871462 |
6494 | // Allocate the branch condition registers instead. |
57871462 |
6495 | current.isconst=0; |
6496 | current.wasconst=0; |
6497 | regs[i].wasconst=0; |
6498 | if(rs1[i]) alloc_reg(¤t,i,rs1[i]); |
57871462 |
6499 | } |
e1190b87 |
6500 | else |
6501 | { |
6502 | ooo[i]=1; |
6503 | delayslot_alloc(¤t,i+1); |
6504 | } |
57871462 |
6505 | } |
6506 | else |
6507 | // Don't alloc the delay slot yet because we might not execute it |
6508 | if((opcode2[i]&0x1E)==0x2) // BLTZL/BGEZL |
6509 | { |
6510 | current.isconst=0; |
6511 | current.wasconst=0; |
6512 | regs[i].wasconst=0; |
6513 | alloc_cc(¤t,i); |
6514 | dirty_reg(¤t,CCREG); |
6515 | alloc_reg(¤t,i,rs1[i]); |
57871462 |
6516 | } |
6517 | ds=1; |
6518 | //current.isconst=0; |
6519 | break; |
57871462 |
6520 | case IMM16: |
6521 | imm16_alloc(¤t,i); |
6522 | break; |
6523 | case LOAD: |
6524 | case LOADLR: |
6525 | load_alloc(¤t,i); |
6526 | break; |
6527 | case STORE: |
6528 | case STORELR: |
6529 | store_alloc(¤t,i); |
6530 | break; |
6531 | case ALU: |
6532 | alu_alloc(¤t,i); |
6533 | break; |
6534 | case SHIFT: |
6535 | shift_alloc(¤t,i); |
6536 | break; |
6537 | case MULTDIV: |
6538 | multdiv_alloc(¤t,i); |
6539 | break; |
6540 | case SHIFTIMM: |
6541 | shiftimm_alloc(¤t,i); |
6542 | break; |
6543 | case MOV: |
6544 | mov_alloc(¤t,i); |
6545 | break; |
6546 | case COP0: |
6547 | cop0_alloc(¤t,i); |
6548 | break; |
6549 | case COP1: |
b9b61529 |
6550 | case COP2: |
00fa9369 |
6551 | cop12_alloc(¤t,i); |
57871462 |
6552 | break; |
6553 | case C1LS: |
6554 | c1ls_alloc(¤t,i); |
6555 | break; |
b9b61529 |
6556 | case C2LS: |
6557 | c2ls_alloc(¤t,i); |
6558 | break; |
6559 | case C2OP: |
6560 | c2op_alloc(¤t,i); |
6561 | break; |
57871462 |
6562 | case SYSCALL: |
7139f3c8 |
6563 | case HLECALL: |
1e973cb0 |
6564 | case INTCALL: |
57871462 |
6565 | syscall_alloc(¤t,i); |
6566 | break; |
6567 | case SPAN: |
6568 | pagespan_alloc(¤t,i); |
6569 | break; |
6570 | } |
9f51b4b9 |
6571 | |
57871462 |
6572 | // Create entry (branch target) regmap |
6573 | for(hr=0;hr<HOST_REGS;hr++) |
6574 | { |
581335b0 |
6575 | int r,or; |
57871462 |
6576 | r=current.regmap[hr]; |
6577 | if(r>=0) { |
6578 | if(r!=regmap_pre[i][hr]) { |
6579 | // TODO: delay slot (?) |
6580 | or=get_reg(regmap_pre[i],r); // Get old mapping for this register |
6581 | if(or<0||(r&63)>=TEMPREG){ |
6582 | regs[i].regmap_entry[hr]=-1; |
6583 | } |
6584 | else |
6585 | { |
6586 | // Just move it to a different register |
6587 | regs[i].regmap_entry[hr]=r; |
6588 | // If it was dirty before, it's still dirty |
6589 | if((regs[i].wasdirty>>or)&1) dirty_reg(¤t,r&63); |
6590 | } |
6591 | } |
6592 | else |
6593 | { |
6594 | // Unneeded |
6595 | if(r==0){ |
6596 | regs[i].regmap_entry[hr]=0; |
6597 | } |
6598 | else |
6599 | if(r<64){ |
6600 | if((current.u>>r)&1) { |
6601 | regs[i].regmap_entry[hr]=-1; |
6602 | //regs[i].regmap[hr]=-1; |
6603 | current.regmap[hr]=-1; |
6604 | }else |
6605 | regs[i].regmap_entry[hr]=r; |
6606 | } |
6607 | else { |
00fa9369 |
6608 | assert(0); |
57871462 |
6609 | } |
6610 | } |
6611 | } else { |
6612 | // Branches expect CCREG to be allocated at the target |
9f51b4b9 |
6613 | if(regmap_pre[i][hr]==CCREG) |
57871462 |
6614 | regs[i].regmap_entry[hr]=CCREG; |
6615 | else |
6616 | regs[i].regmap_entry[hr]=-1; |
6617 | } |
6618 | } |
6619 | memcpy(regs[i].regmap,current.regmap,sizeof(current.regmap)); |
6620 | } |
27727b63 |
6621 | |
6622 | 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) |
6623 | current.waswritten|=1<<rs1[i-1]; |
6624 | current.waswritten&=~(1<<rt1[i]); |
6625 | current.waswritten&=~(1<<rt2[i]); |
6626 | if((itype[i]==STORE||itype[i]==STORELR||(itype[i]==C2LS&&opcode[i]==0x3a))&&(u_int)imm[i]>=0x800) |
6627 | current.waswritten&=~(1<<rs1[i]); |
6628 | |
57871462 |
6629 | /* Branch post-alloc */ |
6630 | if(i>0) |
6631 | { |
57871462 |
6632 | current.wasdirty=current.dirty; |
6633 | switch(itype[i-1]) { |
6634 | case UJUMP: |
6635 | memcpy(&branch_regs[i-1],¤t,sizeof(current)); |
6636 | branch_regs[i-1].isconst=0; |
6637 | branch_regs[i-1].wasconst=0; |
6638 | branch_regs[i-1].u=branch_unneeded_reg[i-1]&~((1LL<<rs1[i-1])|(1LL<<rs2[i-1])); |
57871462 |
6639 | alloc_cc(&branch_regs[i-1],i-1); |
6640 | dirty_reg(&branch_regs[i-1],CCREG); |
6641 | if(rt1[i-1]==31) { // JAL |
6642 | alloc_reg(&branch_regs[i-1],i-1,31); |
6643 | dirty_reg(&branch_regs[i-1],31); |
57871462 |
6644 | } |
6645 | memcpy(&branch_regs[i-1].regmap_entry,&branch_regs[i-1].regmap,sizeof(current.regmap)); |
956f3129 |
6646 | memcpy(constmap[i],constmap[i-1],sizeof(current_constmap)); |
57871462 |
6647 | break; |
6648 | case RJUMP: |
6649 | memcpy(&branch_regs[i-1],¤t,sizeof(current)); |
6650 | branch_regs[i-1].isconst=0; |
6651 | branch_regs[i-1].wasconst=0; |
6652 | branch_regs[i-1].u=branch_unneeded_reg[i-1]&~((1LL<<rs1[i-1])|(1LL<<rs2[i-1])); |
57871462 |
6653 | alloc_cc(&branch_regs[i-1],i-1); |
6654 | dirty_reg(&branch_regs[i-1],CCREG); |
6655 | alloc_reg(&branch_regs[i-1],i-1,rs1[i-1]); |
5067f341 |
6656 | if(rt1[i-1]!=0) { // JALR |
6657 | alloc_reg(&branch_regs[i-1],i-1,rt1[i-1]); |
6658 | dirty_reg(&branch_regs[i-1],rt1[i-1]); |
57871462 |
6659 | } |
6660 | #ifdef USE_MINI_HT |
6661 | if(rs1[i-1]==31) { // JALR |
6662 | alloc_reg(&branch_regs[i-1],i-1,RHASH); |
57871462 |
6663 | alloc_reg(&branch_regs[i-1],i-1,RHTBL); |
57871462 |
6664 | } |
6665 | #endif |
6666 | memcpy(&branch_regs[i-1].regmap_entry,&branch_regs[i-1].regmap,sizeof(current.regmap)); |
956f3129 |
6667 | memcpy(constmap[i],constmap[i-1],sizeof(current_constmap)); |
57871462 |
6668 | break; |
6669 | case CJUMP: |
6670 | if((opcode[i-1]&0x3E)==4) // BEQ/BNE |
6671 | { |
6672 | alloc_cc(¤t,i-1); |
6673 | dirty_reg(¤t,CCREG); |
6674 | if((rs1[i-1]&&(rs1[i-1]==rt1[i]||rs1[i-1]==rt2[i]))|| |
6675 | (rs2[i-1]&&(rs2[i-1]==rt1[i]||rs2[i-1]==rt2[i]))) { |
6676 | // The delay slot overwrote one of our conditions |
6677 | // Delay slot goes after the test (in order) |
6678 | current.u=branch_unneeded_reg[i-1]&~((1LL<<rs1[i])|(1LL<<rs2[i])); |
57871462 |
6679 | current.u|=1; |
57871462 |
6680 | delayslot_alloc(¤t,i); |
6681 | current.isconst=0; |
6682 | } |
6683 | else |
6684 | { |
6685 | current.u=branch_unneeded_reg[i-1]&~((1LL<<rs1[i-1])|(1LL<<rs2[i-1])); |
57871462 |
6686 | // Alloc the branch condition registers |
6687 | if(rs1[i-1]) alloc_reg(¤t,i-1,rs1[i-1]); |
6688 | if(rs2[i-1]) alloc_reg(¤t,i-1,rs2[i-1]); |
57871462 |
6689 | } |
6690 | memcpy(&branch_regs[i-1],¤t,sizeof(current)); |
6691 | branch_regs[i-1].isconst=0; |
6692 | branch_regs[i-1].wasconst=0; |
6693 | memcpy(&branch_regs[i-1].regmap_entry,¤t.regmap,sizeof(current.regmap)); |
956f3129 |
6694 | memcpy(constmap[i],constmap[i-1],sizeof(current_constmap)); |
57871462 |
6695 | } |
6696 | else |
6697 | if((opcode[i-1]&0x3E)==6) // BLEZ/BGTZ |
6698 | { |
6699 | alloc_cc(¤t,i-1); |
6700 | dirty_reg(¤t,CCREG); |
6701 | if(rs1[i-1]==rt1[i]||rs1[i-1]==rt2[i]) { |
6702 | // The delay slot overwrote the branch condition |
6703 | // Delay slot goes after the test (in order) |
6704 | current.u=branch_unneeded_reg[i-1]&~((1LL<<rs1[i])|(1LL<<rs2[i])); |
57871462 |
6705 | current.u|=1; |
57871462 |
6706 | delayslot_alloc(¤t,i); |
6707 | current.isconst=0; |
6708 | } |
6709 | else |
6710 | { |
6711 | current.u=branch_unneeded_reg[i-1]&~(1LL<<rs1[i-1]); |
57871462 |
6712 | // Alloc the branch condition register |
6713 | alloc_reg(¤t,i-1,rs1[i-1]); |
57871462 |
6714 | } |
6715 | memcpy(&branch_regs[i-1],¤t,sizeof(current)); |
6716 | branch_regs[i-1].isconst=0; |
6717 | branch_regs[i-1].wasconst=0; |
6718 | memcpy(&branch_regs[i-1].regmap_entry,¤t.regmap,sizeof(current.regmap)); |
956f3129 |
6719 | memcpy(constmap[i],constmap[i-1],sizeof(current_constmap)); |
57871462 |
6720 | } |
6721 | else |
6722 | // Alloc the delay slot in case the branch is taken |
6723 | if((opcode[i-1]&0x3E)==0x14) // BEQL/BNEL |
6724 | { |
6725 | memcpy(&branch_regs[i-1],¤t,sizeof(current)); |
6726 | branch_regs[i-1].u=(branch_unneeded_reg[i-1]&~((1LL<<rs1[i])|(1LL<<rs2[i])|(1LL<<rt1[i])|(1LL<<rt2[i])))|1; |
57871462 |
6727 | alloc_cc(&branch_regs[i-1],i); |
6728 | dirty_reg(&branch_regs[i-1],CCREG); |
6729 | delayslot_alloc(&branch_regs[i-1],i); |
6730 | branch_regs[i-1].isconst=0; |
6731 | alloc_reg(¤t,i,CCREG); // Not taken path |
6732 | dirty_reg(¤t,CCREG); |
6733 | memcpy(&branch_regs[i-1].regmap_entry,&branch_regs[i-1].regmap,sizeof(current.regmap)); |
6734 | } |
6735 | else |
6736 | if((opcode[i-1]&0x3E)==0x16) // BLEZL/BGTZL |
6737 | { |
6738 | memcpy(&branch_regs[i-1],¤t,sizeof(current)); |
6739 | branch_regs[i-1].u=(branch_unneeded_reg[i-1]&~((1LL<<rs1[i])|(1LL<<rs2[i])|(1LL<<rt1[i])|(1LL<<rt2[i])))|1; |
57871462 |
6740 | alloc_cc(&branch_regs[i-1],i); |
6741 | dirty_reg(&branch_regs[i-1],CCREG); |
6742 | delayslot_alloc(&branch_regs[i-1],i); |
6743 | branch_regs[i-1].isconst=0; |
6744 | alloc_reg(¤t,i,CCREG); // Not taken path |
6745 | dirty_reg(¤t,CCREG); |
6746 | memcpy(&branch_regs[i-1].regmap_entry,&branch_regs[i-1].regmap,sizeof(current.regmap)); |
6747 | } |
6748 | break; |
6749 | case SJUMP: |
6750 | //if((opcode2[i-1]&0x1E)==0) // BLTZ/BGEZ |
6751 | if((opcode2[i-1]&0x0E)==0) // BLTZ/BGEZ |
6752 | { |
6753 | alloc_cc(¤t,i-1); |
6754 | dirty_reg(¤t,CCREG); |
6755 | if(rs1[i-1]==rt1[i]||rs1[i-1]==rt2[i]) { |
6756 | // The delay slot overwrote the branch condition |
6757 | // Delay slot goes after the test (in order) |
6758 | current.u=branch_unneeded_reg[i-1]&~((1LL<<rs1[i])|(1LL<<rs2[i])); |
57871462 |
6759 | current.u|=1; |
57871462 |
6760 | delayslot_alloc(¤t,i); |
6761 | current.isconst=0; |
6762 | } |
6763 | else |
6764 | { |
6765 | current.u=branch_unneeded_reg[i-1]&~(1LL<<rs1[i-1]); |
57871462 |
6766 | // Alloc the branch condition register |
6767 | alloc_reg(¤t,i-1,rs1[i-1]); |
57871462 |
6768 | } |
6769 | memcpy(&branch_regs[i-1],¤t,sizeof(current)); |
6770 | branch_regs[i-1].isconst=0; |
6771 | branch_regs[i-1].wasconst=0; |
6772 | memcpy(&branch_regs[i-1].regmap_entry,¤t.regmap,sizeof(current.regmap)); |
956f3129 |
6773 | memcpy(constmap[i],constmap[i-1],sizeof(current_constmap)); |
57871462 |
6774 | } |
6775 | else |
6776 | // Alloc the delay slot in case the branch is taken |
6777 | if((opcode2[i-1]&0x1E)==2) // BLTZL/BGEZL |
6778 | { |
6779 | memcpy(&branch_regs[i-1],¤t,sizeof(current)); |
6780 | branch_regs[i-1].u=(branch_unneeded_reg[i-1]&~((1LL<<rs1[i])|(1LL<<rs2[i])|(1LL<<rt1[i])|(1LL<<rt2[i])))|1; |
57871462 |
6781 | alloc_cc(&branch_regs[i-1],i); |
6782 | dirty_reg(&branch_regs[i-1],CCREG); |
6783 | delayslot_alloc(&branch_regs[i-1],i); |
6784 | branch_regs[i-1].isconst=0; |
6785 | alloc_reg(¤t,i,CCREG); // Not taken path |
6786 | dirty_reg(¤t,CCREG); |
6787 | memcpy(&branch_regs[i-1].regmap_entry,&branch_regs[i-1].regmap,sizeof(current.regmap)); |
6788 | } |
6789 | // FIXME: BLTZAL/BGEZAL |
6790 | if(opcode2[i-1]&0x10) { // BxxZAL |
6791 | alloc_reg(&branch_regs[i-1],i-1,31); |
6792 | dirty_reg(&branch_regs[i-1],31); |
57871462 |
6793 | } |
6794 | break; |
57871462 |
6795 | } |
6796 | |
6797 | if(itype[i-1]==UJUMP||itype[i-1]==RJUMP||(source[i-1]>>16)==0x1000) |
6798 | { |
6799 | if(rt1[i-1]==31) // JAL/JALR |
6800 | { |
6801 | // Subroutine call will return here, don't alloc any registers |
57871462 |
6802 | current.dirty=0; |
6803 | clear_all_regs(current.regmap); |
6804 | alloc_reg(¤t,i,CCREG); |
6805 | dirty_reg(¤t,CCREG); |
6806 | } |
6807 | else if(i+1<slen) |
6808 | { |
6809 | // Internal branch will jump here, match registers to caller |
57871462 |
6810 | current.dirty=0; |
6811 | clear_all_regs(current.regmap); |
6812 | alloc_reg(¤t,i,CCREG); |
6813 | dirty_reg(¤t,CCREG); |
6814 | for(j=i-1;j>=0;j--) |
6815 | { |
6816 | if(ba[j]==start+i*4+4) { |
6817 | memcpy(current.regmap,branch_regs[j].regmap,sizeof(current.regmap)); |
57871462 |
6818 | current.dirty=branch_regs[j].dirty; |
6819 | break; |
6820 | } |
6821 | } |
6822 | while(j>=0) { |
6823 | if(ba[j]==start+i*4+4) { |
6824 | for(hr=0;hr<HOST_REGS;hr++) { |
6825 | if(current.regmap[hr]!=branch_regs[j].regmap[hr]) { |
6826 | current.regmap[hr]=-1; |
6827 | } |
57871462 |
6828 | current.dirty&=branch_regs[j].dirty; |
6829 | } |
6830 | } |
6831 | j--; |
6832 | } |
6833 | } |
6834 | } |
6835 | } |
6836 | |
6837 | // Count cycles in between branches |
6838 | ccadj[i]=cc; |
ad49de89 |
6839 | 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 |
6840 | { |
6841 | cc=0; |
6842 | } |
71e490c5 |
6843 | #if !defined(DRC_DBG) |
054175e9 |
6844 | else if(itype[i]==C2OP&>e_cycletab[source[i]&0x3f]>2) |
6845 | { |
6846 | // GTE runs in parallel until accessed, divide by 2 for a rough guess |
6847 | cc+=gte_cycletab[source[i]&0x3f]/2; |
6848 | } |
b6e87b2b |
6849 | else if(/*itype[i]==LOAD||itype[i]==STORE||*/itype[i]==C1LS) // load,store causes weird timing issues |
fb407447 |
6850 | { |
6851 | cc+=2; // 2 cycle penalty (after CLOCK_DIVIDER) |
6852 | } |
5fdcbb5a |
6853 | else if(i>1&&itype[i]==STORE&&itype[i-1]==STORE&&itype[i-2]==STORE&&!bt[i]) |
6854 | { |
6855 | cc+=4; |
6856 | } |
fb407447 |
6857 | else if(itype[i]==C2LS) |
6858 | { |
6859 | cc+=4; |
6860 | } |
6861 | #endif |
57871462 |
6862 | else |
6863 | { |
6864 | cc++; |
6865 | } |
6866 | |
57871462 |
6867 | if(!is_ds[i]) { |
57871462 |
6868 | regs[i].dirty=current.dirty; |
6869 | regs[i].isconst=current.isconst; |
956f3129 |
6870 | memcpy(constmap[i],current_constmap,sizeof(current_constmap)); |
57871462 |
6871 | } |
6872 | for(hr=0;hr<HOST_REGS;hr++) { |
6873 | if(hr!=EXCLUDE_REG&®s[i].regmap[hr]>=0) { |
6874 | if(regmap_pre[i][hr]!=regs[i].regmap[hr]) { |
6875 | regs[i].wasconst&=~(1<<hr); |
6876 | } |
6877 | } |
6878 | } |
6879 | if(current.regmap[HOST_BTREG]==BTREG) current.regmap[HOST_BTREG]=-1; |
27727b63 |
6880 | regs[i].waswritten=current.waswritten; |
57871462 |
6881 | } |
9f51b4b9 |
6882 | |
57871462 |
6883 | /* Pass 4 - Cull unused host registers */ |
9f51b4b9 |
6884 | |
57871462 |
6885 | uint64_t nr=0; |
9f51b4b9 |
6886 | |
57871462 |
6887 | for (i=slen-1;i>=0;i--) |
6888 | { |
6889 | int hr; |
ad49de89 |
6890 | if(itype[i]==RJUMP||itype[i]==UJUMP||itype[i]==CJUMP||itype[i]==SJUMP) |
57871462 |
6891 | { |
6892 | if(ba[i]<start || ba[i]>=(start+slen*4)) |
6893 | { |
6894 | // Branch out of this block, don't need anything |
6895 | nr=0; |
6896 | } |
6897 | else |
6898 | { |
6899 | // Internal branch |
6900 | // Need whatever matches the target |
6901 | nr=0; |
6902 | int t=(ba[i]-start)>>2; |
6903 | for(hr=0;hr<HOST_REGS;hr++) |
6904 | { |
6905 | if(regs[i].regmap_entry[hr]>=0) { |
6906 | if(regs[i].regmap_entry[hr]==regs[t].regmap_entry[hr]) nr|=1<<hr; |
6907 | } |
6908 | } |
6909 | } |
6910 | // Conditional branch may need registers for following instructions |
6911 | if(itype[i]!=RJUMP&&itype[i]!=UJUMP&&(source[i]>>16)!=0x1000) |
6912 | { |
6913 | if(i<slen-2) { |
6914 | nr|=needed_reg[i+2]; |
6915 | for(hr=0;hr<HOST_REGS;hr++) |
6916 | { |
6917 | if(regmap_pre[i+2][hr]>=0&&get_reg(regs[i+2].regmap_entry,regmap_pre[i+2][hr])<0) nr&=~(1<<hr); |
6918 | //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]); |
6919 | } |
6920 | } |
6921 | } |
6922 | // Don't need stuff which is overwritten |
f5955059 |
6923 | //if(regs[i].regmap[hr]!=regmap_pre[i][hr]) nr&=~(1<<hr); |
6924 | //if(regs[i].regmap[hr]<0) nr&=~(1<<hr); |
57871462 |
6925 | // Merge in delay slot |
6926 | for(hr=0;hr<HOST_REGS;hr++) |
6927 | { |
6928 | if(!likely[i]) { |
6929 | // These are overwritten unless the branch is "likely" |
6930 | // and the delay slot is nullified if not taken |
6931 | if(rt1[i+1]&&rt1[i+1]==(regs[i].regmap[hr]&63)) nr&=~(1<<hr); |
6932 | if(rt2[i+1]&&rt2[i+1]==(regs[i].regmap[hr]&63)) nr&=~(1<<hr); |
6933 | } |
6934 | if(us1[i+1]==(regmap_pre[i][hr]&63)) nr|=1<<hr; |
6935 | if(us2[i+1]==(regmap_pre[i][hr]&63)) nr|=1<<hr; |
6936 | if(rs1[i+1]==regmap_pre[i][hr]) nr|=1<<hr; |
6937 | if(rs2[i+1]==regmap_pre[i][hr]) nr|=1<<hr; |
6938 | if(us1[i+1]==(regs[i].regmap_entry[hr]&63)) nr|=1<<hr; |
6939 | if(us2[i+1]==(regs[i].regmap_entry[hr]&63)) nr|=1<<hr; |
6940 | if(rs1[i+1]==regs[i].regmap_entry[hr]) nr|=1<<hr; |
6941 | if(rs2[i+1]==regs[i].regmap_entry[hr]) nr|=1<<hr; |
b9b61529 |
6942 | if(itype[i+1]==STORE || itype[i+1]==STORELR || (opcode[i+1]&0x3b)==0x39 || (opcode[i+1]&0x3b)==0x3a) { |
57871462 |
6943 | if(regmap_pre[i][hr]==INVCP) nr|=1<<hr; |
6944 | if(regs[i].regmap_entry[hr]==INVCP) nr|=1<<hr; |
6945 | } |
6946 | } |
6947 | } |
1e973cb0 |
6948 | else if(itype[i]==SYSCALL||itype[i]==HLECALL||itype[i]==INTCALL) |
57871462 |
6949 | { |
6950 | // SYSCALL instruction (software interrupt) |
6951 | nr=0; |
6952 | } |
6953 | else if(itype[i]==COP0 && (source[i]&0x3f)==0x18) |
6954 | { |
6955 | // ERET instruction (return from interrupt) |
6956 | nr=0; |
6957 | } |
6958 | else // Non-branch |
6959 | { |
6960 | if(i<slen-1) { |
6961 | for(hr=0;hr<HOST_REGS;hr++) { |
6962 | if(regmap_pre[i+1][hr]>=0&&get_reg(regs[i+1].regmap_entry,regmap_pre[i+1][hr])<0) nr&=~(1<<hr); |
6963 | if(regs[i].regmap[hr]!=regmap_pre[i+1][hr]) nr&=~(1<<hr); |
6964 | if(regs[i].regmap[hr]!=regmap_pre[i][hr]) nr&=~(1<<hr); |
6965 | if(regs[i].regmap[hr]<0) nr&=~(1<<hr); |
6966 | } |
6967 | } |
6968 | } |
6969 | for(hr=0;hr<HOST_REGS;hr++) |
6970 | { |
6971 | // Overwritten registers are not needed |
6972 | if(rt1[i]&&rt1[i]==(regs[i].regmap[hr]&63)) nr&=~(1<<hr); |
6973 | if(rt2[i]&&rt2[i]==(regs[i].regmap[hr]&63)) nr&=~(1<<hr); |
6974 | if(FTEMP==(regs[i].regmap[hr]&63)) nr&=~(1<<hr); |
6975 | // Source registers are needed |
6976 | if(us1[i]==(regmap_pre[i][hr]&63)) nr|=1<<hr; |
6977 | if(us2[i]==(regmap_pre[i][hr]&63)) nr|=1<<hr; |
6978 | if(rs1[i]==regmap_pre[i][hr]) nr|=1<<hr; |
6979 | if(rs2[i]==regmap_pre[i][hr]) nr|=1<<hr; |
6980 | if(us1[i]==(regs[i].regmap_entry[hr]&63)) nr|=1<<hr; |
6981 | if(us2[i]==(regs[i].regmap_entry[hr]&63)) nr|=1<<hr; |
6982 | if(rs1[i]==regs[i].regmap_entry[hr]) nr|=1<<hr; |
6983 | if(rs2[i]==regs[i].regmap_entry[hr]) nr|=1<<hr; |
b9b61529 |
6984 | if(itype[i]==STORE || itype[i]==STORELR || (opcode[i]&0x3b)==0x39 || (opcode[i]&0x3b)==0x3a) { |
57871462 |
6985 | if(regmap_pre[i][hr]==INVCP) nr|=1<<hr; |
6986 | if(regs[i].regmap_entry[hr]==INVCP) nr|=1<<hr; |
6987 | } |
6988 | // Don't store a register immediately after writing it, |
6989 | // may prevent dual-issue. |
6990 | // But do so if this is a branch target, otherwise we |
6991 | // might have to load the register before the branch. |
6992 | if(i>0&&!bt[i]&&((regs[i].wasdirty>>hr)&1)) { |
00fa9369 |
6993 | if((regmap_pre[i][hr]>0&®map_pre[i][hr]<64&&!((unneeded_reg[i]>>regmap_pre[i][hr])&1))) { |
57871462 |
6994 | if(rt1[i-1]==(regmap_pre[i][hr]&63)) nr|=1<<hr; |
6995 | if(rt2[i-1]==(regmap_pre[i][hr]&63)) nr|=1<<hr; |
6996 | } |
00fa9369 |
6997 | if((regs[i].regmap_entry[hr]>0&®s[i].regmap_entry[hr]<64&&!((unneeded_reg[i]>>regs[i].regmap_entry[hr])&1))) { |
57871462 |
6998 | if(rt1[i-1]==(regs[i].regmap_entry[hr]&63)) nr|=1<<hr; |
6999 | if(rt2[i-1]==(regs[i].regmap_entry[hr]&63)) nr|=1<<hr; |
7000 | } |
7001 | } |
7002 | } |
7003 | // Cycle count is needed at branches. Assume it is needed at the target too. |
ad49de89 |
7004 | if(i==0||bt[i]||itype[i]==CJUMP||itype[i]==SPAN) { |
57871462 |
7005 | if(regmap_pre[i][HOST_CCREG]==CCREG) nr|=1<<HOST_CCREG; |
7006 | if(regs[i].regmap_entry[HOST_CCREG]==CCREG) nr|=1<<HOST_CCREG; |
7007 | } |
7008 | // Save it |
7009 | needed_reg[i]=nr; |
9f51b4b9 |
7010 | |
57871462 |
7011 | // Deallocate unneeded registers |
7012 | for(hr=0;hr<HOST_REGS;hr++) |
7013 | { |
7014 | if(!((nr>>hr)&1)) { |
7015 | if(regs[i].regmap_entry[hr]!=CCREG) regs[i].regmap_entry[hr]=-1; |
7016 | if((regs[i].regmap[hr]&63)!=rs1[i] && (regs[i].regmap[hr]&63)!=rs2[i] && |
7017 | (regs[i].regmap[hr]&63)!=rt1[i] && (regs[i].regmap[hr]&63)!=rt2[i] && |
7018 | (regs[i].regmap[hr]&63)!=PTEMP && (regs[i].regmap[hr]&63)!=CCREG) |
7019 | { |
7020 | if(itype[i]!=RJUMP&&itype[i]!=UJUMP&&(source[i]>>16)!=0x1000) |
7021 | { |
7022 | if(likely[i]) { |
7023 | regs[i].regmap[hr]=-1; |
7024 | regs[i].isconst&=~(1<<hr); |
79c75f1b |
7025 | if(i<slen-2) { |
7026 | regmap_pre[i+2][hr]=-1; |
7027 | regs[i+2].wasconst&=~(1<<hr); |
7028 | } |
57871462 |
7029 | } |
7030 | } |
7031 | } |
ad49de89 |
7032 | if(itype[i]==RJUMP||itype[i]==UJUMP||itype[i]==CJUMP||itype[i]==SJUMP) |
57871462 |
7033 | { |
7034 | int d1=0,d2=0,map=0,temp=0; |
7035 | if(get_reg(regs[i].regmap,rt1[i+1]|64)>=0||get_reg(branch_regs[i].regmap,rt1[i+1]|64)>=0) |
7036 | { |
7037 | d1=dep1[i+1]; |
7038 | d2=dep2[i+1]; |
7039 | } |
b9b61529 |
7040 | if(itype[i+1]==STORE || itype[i+1]==STORELR || |
7041 | (opcode[i+1]&0x3b)==0x39 || (opcode[i+1]&0x3b)==0x3a) { // SWC1/SDC1 || SWC2/SDC2 |
57871462 |
7042 | map=INVCP; |
7043 | } |
7044 | if(itype[i+1]==LOADLR || itype[i+1]==STORELR || |
b9b61529 |
7045 | itype[i+1]==C1LS || itype[i+1]==C2LS) |
57871462 |
7046 | temp=FTEMP; |
7047 | if((regs[i].regmap[hr]&63)!=rs1[i] && (regs[i].regmap[hr]&63)!=rs2[i] && |
7048 | (regs[i].regmap[hr]&63)!=rt1[i] && (regs[i].regmap[hr]&63)!=rt2[i] && |
7049 | (regs[i].regmap[hr]&63)!=rt1[i+1] && (regs[i].regmap[hr]&63)!=rt2[i+1] && |
7050 | (regs[i].regmap[hr]^64)!=us1[i+1] && (regs[i].regmap[hr]^64)!=us2[i+1] && |
7051 | (regs[i].regmap[hr]^64)!=d1 && (regs[i].regmap[hr]^64)!=d2 && |
7052 | regs[i].regmap[hr]!=rs1[i+1] && regs[i].regmap[hr]!=rs2[i+1] && |
7053 | (regs[i].regmap[hr]&63)!=temp && regs[i].regmap[hr]!=PTEMP && |
7054 | regs[i].regmap[hr]!=RHASH && regs[i].regmap[hr]!=RHTBL && |
7055 | regs[i].regmap[hr]!=RTEMP && regs[i].regmap[hr]!=CCREG && |
7056 | regs[i].regmap[hr]!=map ) |
7057 | { |
7058 | regs[i].regmap[hr]=-1; |
7059 | regs[i].isconst&=~(1<<hr); |
7060 | if((branch_regs[i].regmap[hr]&63)!=rs1[i] && (branch_regs[i].regmap[hr]&63)!=rs2[i] && |
7061 | (branch_regs[i].regmap[hr]&63)!=rt1[i] && (branch_regs[i].regmap[hr]&63)!=rt2[i] && |
7062 | (branch_regs[i].regmap[hr]&63)!=rt1[i+1] && (branch_regs[i].regmap[hr]&63)!=rt2[i+1] && |
7063 | (branch_regs[i].regmap[hr]^64)!=us1[i+1] && (branch_regs[i].regmap[hr]^64)!=us2[i+1] && |
7064 | (branch_regs[i].regmap[hr]^64)!=d1 && (branch_regs[i].regmap[hr]^64)!=d2 && |
7065 | branch_regs[i].regmap[hr]!=rs1[i+1] && branch_regs[i].regmap[hr]!=rs2[i+1] && |
7066 | (branch_regs[i].regmap[hr]&63)!=temp && branch_regs[i].regmap[hr]!=PTEMP && |
7067 | branch_regs[i].regmap[hr]!=RHASH && branch_regs[i].regmap[hr]!=RHTBL && |
7068 | branch_regs[i].regmap[hr]!=RTEMP && branch_regs[i].regmap[hr]!=CCREG && |
7069 | branch_regs[i].regmap[hr]!=map) |
7070 | { |
7071 | branch_regs[i].regmap[hr]=-1; |
7072 | branch_regs[i].regmap_entry[hr]=-1; |
7073 | if(itype[i]!=RJUMP&&itype[i]!=UJUMP&&(source[i]>>16)!=0x1000) |
7074 | { |
7075 | if(!likely[i]&&i<slen-2) { |
7076 | regmap_pre[i+2][hr]=-1; |
79c75f1b |
7077 | regs[i+2].wasconst&=~(1<<hr); |
57871462 |
7078 | } |
7079 | } |
7080 | } |
7081 | } |
7082 | } |
7083 | else |
7084 | { |
7085 | // Non-branch |
7086 | if(i>0) |
7087 | { |
7088 | int d1=0,d2=0,map=-1,temp=-1; |
7089 | if(get_reg(regs[i].regmap,rt1[i]|64)>=0) |
7090 | { |
7091 | d1=dep1[i]; |
7092 | d2=dep2[i]; |
7093 | } |
1edfcc68 |
7094 | if(itype[i]==STORE || itype[i]==STORELR || |
b9b61529 |
7095 | (opcode[i]&0x3b)==0x39 || (opcode[i]&0x3b)==0x3a) { // SWC1/SDC1 || SWC2/SDC2 |
57871462 |
7096 | map=INVCP; |
7097 | } |
7098 | if(itype[i]==LOADLR || itype[i]==STORELR || |
b9b61529 |
7099 | itype[i]==C1LS || itype[i]==C2LS) |
57871462 |
7100 | temp=FTEMP; |
7101 | if((regs[i].regmap[hr]&63)!=rt1[i] && (regs[i].regmap[hr]&63)!=rt2[i] && |
7102 | (regs[i].regmap[hr]^64)!=us1[i] && (regs[i].regmap[hr]^64)!=us2[i] && |
7103 | (regs[i].regmap[hr]^64)!=d1 && (regs[i].regmap[hr]^64)!=d2 && |
7104 | regs[i].regmap[hr]!=rs1[i] && regs[i].regmap[hr]!=rs2[i] && |
7105 | (regs[i].regmap[hr]&63)!=temp && regs[i].regmap[hr]!=map && |
7106 | (itype[i]!=SPAN||regs[i].regmap[hr]!=CCREG)) |
7107 | { |
7108 | if(i<slen-1&&!is_ds[i]) { |
ad49de89 |
7109 | assert(regs[i].regmap[hr]<64); |
57871462 |
7110 | if(regmap_pre[i+1][hr]!=-1 || regs[i].regmap[hr]!=-1) |
7111 | if(regmap_pre[i+1][hr]!=regs[i].regmap[hr]) |
57871462 |
7112 | { |
c43b5311 |
7113 | SysPrintf("fail: %x (%d %d!=%d)\n",start+i*4,hr,regmap_pre[i+1][hr],regs[i].regmap[hr]); |
57871462 |
7114 | assert(regmap_pre[i+1][hr]==regs[i].regmap[hr]); |
7115 | } |
7116 | regmap_pre[i+1][hr]=-1; |
7117 | if(regs[i+1].regmap_entry[hr]==CCREG) regs[i+1].regmap_entry[hr]=-1; |
79c75f1b |
7118 | regs[i+1].wasconst&=~(1<<hr); |
57871462 |
7119 | } |
7120 | regs[i].regmap[hr]=-1; |
7121 | regs[i].isconst&=~(1<<hr); |
7122 | } |
7123 | } |
7124 | } |
7125 | } |
7126 | } |
7127 | } |
9f51b4b9 |
7128 | |
57871462 |
7129 | /* Pass 5 - Pre-allocate registers */ |
9f51b4b9 |
7130 | |
57871462 |
7131 | // If a register is allocated during a loop, try to allocate it for the |
7132 | // entire loop, if possible. This avoids loading/storing registers |
7133 | // inside of the loop. |
9f51b4b9 |
7134 | |
57871462 |
7135 | signed char f_regmap[HOST_REGS]; |
7136 | clear_all_regs(f_regmap); |
7137 | for(i=0;i<slen-1;i++) |
7138 | { |
ad49de89 |
7139 | if(itype[i]==UJUMP||itype[i]==CJUMP||itype[i]==SJUMP) |
57871462 |
7140 | { |
9f51b4b9 |
7141 | if(ba[i]>=start && ba[i]<(start+i*4)) |
57871462 |
7142 | if(itype[i+1]==NOP||itype[i+1]==MOV||itype[i+1]==ALU |
7143 | ||itype[i+1]==SHIFTIMM||itype[i+1]==IMM16||itype[i+1]==LOAD |
7144 | ||itype[i+1]==STORE||itype[i+1]==STORELR||itype[i+1]==C1LS |
00fa9369 |
7145 | ||itype[i+1]==SHIFT||itype[i+1]==COP1 |
b9b61529 |
7146 | ||itype[i+1]==COP2||itype[i+1]==C2LS||itype[i+1]==C2OP) |
57871462 |
7147 | { |
7148 | int t=(ba[i]-start)>>2; |
ad49de89 |
7149 | 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 |
7150 | if(t<2||(itype[t-2]!=UJUMP&&itype[t-2]!=RJUMP)||rt1[t-2]!=31) // call/ret assumes no registers allocated |
57871462 |
7151 | for(hr=0;hr<HOST_REGS;hr++) |
7152 | { |
7153 | if(regs[i].regmap[hr]>64) { |
7154 | if(!((regs[i].dirty>>hr)&1)) |
7155 | f_regmap[hr]=regs[i].regmap[hr]; |
7156 | else f_regmap[hr]=-1; |
7157 | } |
b372a952 |
7158 | else if(regs[i].regmap[hr]>=0) { |
7159 | if(f_regmap[hr]!=regs[i].regmap[hr]) { |
7160 | // dealloc old register |
7161 | int n; |
7162 | for(n=0;n<HOST_REGS;n++) |
7163 | { |
7164 | if(f_regmap[n]==regs[i].regmap[hr]) {f_regmap[n]=-1;} |
7165 | } |
7166 | // and alloc new one |
7167 | f_regmap[hr]=regs[i].regmap[hr]; |
7168 | } |
7169 | } |
57871462 |
7170 | if(branch_regs[i].regmap[hr]>64) { |
7171 | if(!((branch_regs[i].dirty>>hr)&1)) |
7172 | f_regmap[hr]=branch_regs[i].regmap[hr]; |
7173 | else f_regmap[hr]=-1; |
7174 | } |
b372a952 |
7175 | else if(branch_regs[i].regmap[hr]>=0) { |
7176 | if(f_regmap[hr]!=branch_regs[i].regmap[hr]) { |
7177 | // dealloc old register |
7178 | int n; |
7179 | for(n=0;n<HOST_REGS;n++) |
7180 | { |
7181 | if(f_regmap[n]==branch_regs[i].regmap[hr]) {f_regmap[n]=-1;} |
7182 | } |
7183 | // and alloc new one |
7184 | f_regmap[hr]=branch_regs[i].regmap[hr]; |
7185 | } |
7186 | } |
e1190b87 |
7187 | if(ooo[i]) { |
9f51b4b9 |
7188 | if(count_free_regs(regs[i].regmap)<=minimum_free_regs[i+1]) |
e1190b87 |
7189 | f_regmap[hr]=branch_regs[i].regmap[hr]; |
7190 | }else{ |
9f51b4b9 |
7191 | if(count_free_regs(branch_regs[i].regmap)<=minimum_free_regs[i+1]) |
57871462 |
7192 | f_regmap[hr]=branch_regs[i].regmap[hr]; |
7193 | } |
7194 | // Avoid dirty->clean transition |
e1190b87 |
7195 | #ifdef DESTRUCTIVE_WRITEBACK |
57871462 |
7196 | 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 |
7197 | #endif |
7198 | // This check is only strictly required in the DESTRUCTIVE_WRITEBACK |
7199 | // case above, however it's always a good idea. We can't hoist the |
7200 | // load if the register was already allocated, so there's no point |
7201 | // wasting time analyzing most of these cases. It only "succeeds" |
7202 | // when the mapping was different and the load can be replaced with |
7203 | // a mov, which is of negligible benefit. So such cases are |
7204 | // skipped below. |
57871462 |
7205 | if(f_regmap[hr]>0) { |
198df76f |
7206 | if(regs[t].regmap[hr]==f_regmap[hr]||(regs[t].regmap_entry[hr]<0&&get_reg(regmap_pre[t],f_regmap[hr])<0)) { |
57871462 |
7207 | int r=f_regmap[hr]; |
7208 | for(j=t;j<=i;j++) |
7209 | { |
7210 | //printf("Test %x -> %x, %x %d/%d\n",start+i*4,ba[i],start+j*4,hr,r); |
7211 | if(r<34&&((unneeded_reg[j]>>r)&1)) break; |
00fa9369 |
7212 | assert(r < 64); |
57871462 |
7213 | if(regs[j].regmap[hr]==f_regmap[hr]&&(f_regmap[hr]&63)<TEMPREG) { |
7214 | //printf("Hit %x -> %x, %x %d/%d\n",start+i*4,ba[i],start+j*4,hr,r); |
7215 | int k; |
7216 | if(regs[i].regmap[hr]==-1&&branch_regs[i].regmap[hr]==-1) { |
7217 | if(get_reg(regs[i+2].regmap,f_regmap[hr])>=0) break; |
7218 | if(r>63) { |
7219 | if(get_reg(regs[i].regmap,r&63)<0) break; |
7220 | if(get_reg(branch_regs[i].regmap,r&63)<0) break; |
7221 | } |
7222 | k=i; |
7223 | while(k>1&®s[k-1].regmap[hr]==-1) { |
e1190b87 |
7224 | if(count_free_regs(regs[k-1].regmap)<=minimum_free_regs[k-1]) { |
7225 | //printf("no free regs for store %x\n",start+(k-1)*4); |
7226 | break; |
57871462 |
7227 | } |
57871462 |
7228 | if(get_reg(regs[k-1].regmap,f_regmap[hr])>=0) { |
7229 | //printf("no-match due to different register\n"); |
7230 | break; |
7231 | } |
ad49de89 |
7232 | if(itype[k-2]==UJUMP||itype[k-2]==RJUMP||itype[k-2]==CJUMP||itype[k-2]==SJUMP) { |
57871462 |
7233 | //printf("no-match due to branch\n"); |
7234 | break; |
7235 | } |
7236 | // call/ret fast path assumes no registers allocated |
198df76f |
7237 | if(k>2&&(itype[k-3]==UJUMP||itype[k-3]==RJUMP)&&rt1[k-3]==31) { |
57871462 |
7238 | break; |
7239 | } |
ad49de89 |
7240 | assert(r < 64); |
57871462 |
7241 | k--; |
7242 | } |
57871462 |
7243 | if(regs[k-1].regmap[hr]==f_regmap[hr]&®map_pre[k][hr]==f_regmap[hr]) { |
7244 | //printf("Extend r%d, %x ->\n",hr,start+k*4); |
7245 | while(k<i) { |
7246 | regs[k].regmap_entry[hr]=f_regmap[hr]; |
7247 | regs[k].regmap[hr]=f_regmap[hr]; |
7248 | regmap_pre[k+1][hr]=f_regmap[hr]; |
7249 | regs[k].wasdirty&=~(1<<hr); |
7250 | regs[k].dirty&=~(1<<hr); |
7251 | regs[k].wasdirty|=(1<<hr)®s[k-1].dirty; |
7252 | regs[k].dirty|=(1<<hr)®s[k].wasdirty; |
7253 | regs[k].wasconst&=~(1<<hr); |
7254 | regs[k].isconst&=~(1<<hr); |
7255 | k++; |
7256 | } |
7257 | } |
7258 | else { |
7259 | //printf("Fail Extend r%d, %x ->\n",hr,start+k*4); |
7260 | break; |
7261 | } |
7262 | assert(regs[i-1].regmap[hr]==f_regmap[hr]); |
7263 | if(regs[i-1].regmap[hr]==f_regmap[hr]&®map_pre[i][hr]==f_regmap[hr]) { |
7264 | //printf("OK fill %x (r%d)\n",start+i*4,hr); |
7265 | regs[i].regmap_entry[hr]=f_regmap[hr]; |
7266 | regs[i].regmap[hr]=f_regmap[hr]; |
7267 | regs[i].wasdirty&=~(1<<hr); |
7268 | regs[i].dirty&=~(1<<hr); |
7269 | regs[i].wasdirty|=(1<<hr)®s[i-1].dirty; |
7270 | regs[i].dirty|=(1<<hr)®s[i-1].dirty; |
7271 | regs[i].wasconst&=~(1<<hr); |
7272 | regs[i].isconst&=~(1<<hr); |
7273 | branch_regs[i].regmap_entry[hr]=f_regmap[hr]; |
7274 | branch_regs[i].wasdirty&=~(1<<hr); |
7275 | branch_regs[i].wasdirty|=(1<<hr)®s[i].dirty; |
7276 | branch_regs[i].regmap[hr]=f_regmap[hr]; |
7277 | branch_regs[i].dirty&=~(1<<hr); |
7278 | branch_regs[i].dirty|=(1<<hr)®s[i].dirty; |
7279 | branch_regs[i].wasconst&=~(1<<hr); |
7280 | branch_regs[i].isconst&=~(1<<hr); |
7281 | if(itype[i]!=RJUMP&&itype[i]!=UJUMP&&(source[i]>>16)!=0x1000) { |
7282 | regmap_pre[i+2][hr]=f_regmap[hr]; |
7283 | regs[i+2].wasdirty&=~(1<<hr); |
7284 | regs[i+2].wasdirty|=(1<<hr)®s[i].dirty; |
57871462 |
7285 | } |
7286 | } |
7287 | } |
7288 | for(k=t;k<j;k++) { |
e1190b87 |
7289 | // Alloc register clean at beginning of loop, |
7290 | // but may dirty it in pass 6 |
57871462 |
7291 | regs[k].regmap_entry[hr]=f_regmap[hr]; |
7292 | regs[k].regmap[hr]=f_regmap[hr]; |
57871462 |
7293 | regs[k].dirty&=~(1<<hr); |
7294 | regs[k].wasconst&=~(1<<hr); |
7295 | regs[k].isconst&=~(1<<hr); |
ad49de89 |
7296 | if(itype[k]==UJUMP||itype[k]==RJUMP||itype[k]==CJUMP||itype[k]==SJUMP) { |
e1190b87 |
7297 | branch_regs[k].regmap_entry[hr]=f_regmap[hr]; |
7298 | branch_regs[k].regmap[hr]=f_regmap[hr]; |
7299 | branch_regs[k].dirty&=~(1<<hr); |
7300 | branch_regs[k].wasconst&=~(1<<hr); |
7301 | branch_regs[k].isconst&=~(1<<hr); |
7302 | if(itype[k]!=RJUMP&&itype[k]!=UJUMP&&(source[k]>>16)!=0x1000) { |
7303 | regmap_pre[k+2][hr]=f_regmap[hr]; |
7304 | regs[k+2].wasdirty&=~(1<<hr); |
e1190b87 |
7305 | } |
7306 | } |
7307 | else |
7308 | { |
7309 | regmap_pre[k+1][hr]=f_regmap[hr]; |
7310 | regs[k+1].wasdirty&=~(1<<hr); |
7311 | } |
57871462 |
7312 | } |
7313 | if(regs[j].regmap[hr]==f_regmap[hr]) |
7314 | regs[j].regmap_entry[hr]=f_regmap[hr]; |
7315 | break; |
7316 | } |
7317 | if(j==i) break; |
7318 | if(regs[j].regmap[hr]>=0) |
7319 | break; |
7320 | if(get_reg(regs[j].regmap,f_regmap[hr])>=0) { |
7321 | //printf("no-match due to different register\n"); |
7322 | break; |
7323 | } |
e1190b87 |
7324 | if(itype[j]==UJUMP||itype[j]==RJUMP||(source[j]>>16)==0x1000) |
7325 | { |
7326 | // Stop on unconditional branch |
7327 | break; |
7328 | } |
ad49de89 |
7329 | if(itype[j]==CJUMP||itype[j]==SJUMP) |
e1190b87 |
7330 | { |
7331 | if(ooo[j]) { |
9f51b4b9 |
7332 | if(count_free_regs(regs[j].regmap)<=minimum_free_regs[j+1]) |
e1190b87 |
7333 | break; |
7334 | }else{ |
9f51b4b9 |
7335 | if(count_free_regs(branch_regs[j].regmap)<=minimum_free_regs[j+1]) |
e1190b87 |
7336 | break; |
7337 | } |
7338 | if(get_reg(branch_regs[j].regmap,f_regmap[hr])>=0) { |
7339 | //printf("no-match due to different register (branch)\n"); |
57871462 |
7340 | break; |
7341 | } |
7342 | } |
e1190b87 |
7343 | if(count_free_regs(regs[j].regmap)<=minimum_free_regs[j]) { |
7344 | //printf("No free regs for store %x\n",start+j*4); |
7345 | break; |
7346 | } |
ad49de89 |
7347 | assert(f_regmap[hr]<64); |
57871462 |
7348 | } |
7349 | } |
7350 | } |
7351 | } |
7352 | } |
7353 | }else{ |
198df76f |
7354 | // Non branch or undetermined branch target |
57871462 |
7355 | for(hr=0;hr<HOST_REGS;hr++) |
7356 | { |
7357 | if(hr!=EXCLUDE_REG) { |
7358 | if(regs[i].regmap[hr]>64) { |
7359 | if(!((regs[i].dirty>>hr)&1)) |
7360 | f_regmap[hr]=regs[i].regmap[hr]; |
7361 | } |
b372a952 |
7362 | else if(regs[i].regmap[hr]>=0) { |
7363 | if(f_regmap[hr]!=regs[i].regmap[hr]) { |
7364 | // dealloc old register |
7365 | int n; |
7366 | for(n=0;n<HOST_REGS;n++) |
7367 | { |
7368 | if(f_regmap[n]==regs[i].regmap[hr]) {f_regmap[n]=-1;} |
7369 | } |
7370 | // and alloc new one |
7371 | f_regmap[hr]=regs[i].regmap[hr]; |
7372 | } |
7373 | } |
57871462 |
7374 | } |
7375 | } |
7376 | // Try to restore cycle count at branch targets |
7377 | if(bt[i]) { |
7378 | for(j=i;j<slen-1;j++) { |
7379 | if(regs[j].regmap[HOST_CCREG]!=-1) break; |
e1190b87 |
7380 | if(count_free_regs(regs[j].regmap)<=minimum_free_regs[j]) { |
7381 | //printf("no free regs for store %x\n",start+j*4); |
7382 | break; |
57871462 |
7383 | } |
57871462 |
7384 | } |
7385 | if(regs[j].regmap[HOST_CCREG]==CCREG) { |
7386 | int k=i; |
7387 | //printf("Extend CC, %x -> %x\n",start+k*4,start+j*4); |
7388 | while(k<j) { |
7389 | regs[k].regmap_entry[HOST_CCREG]=CCREG; |
7390 | regs[k].regmap[HOST_CCREG]=CCREG; |
7391 | regmap_pre[k+1][HOST_CCREG]=CCREG; |
7392 | regs[k+1].wasdirty|=1<<HOST_CCREG; |
7393 | regs[k].dirty|=1<<HOST_CCREG; |
7394 | regs[k].wasconst&=~(1<<HOST_CCREG); |
7395 | regs[k].isconst&=~(1<<HOST_CCREG); |
7396 | k++; |
7397 | } |
9f51b4b9 |
7398 | regs[j].regmap_entry[HOST_CCREG]=CCREG; |
57871462 |
7399 | } |
7400 | // Work backwards from the branch target |
7401 | if(j>i&&f_regmap[HOST_CCREG]==CCREG) |
7402 | { |
7403 | //printf("Extend backwards\n"); |
7404 | int k; |
7405 | k=i; |
7406 | while(regs[k-1].regmap[HOST_CCREG]==-1) { |
e1190b87 |
7407 | if(count_free_regs(regs[k-1].regmap)<=minimum_free_regs[k-1]) { |
7408 | //printf("no free regs for store %x\n",start+(k-1)*4); |
7409 | break; |
57871462 |
7410 | } |
57871462 |
7411 | k--; |
7412 | } |
7413 | if(regs[k-1].regmap[HOST_CCREG]==CCREG) { |
7414 | //printf("Extend CC, %x ->\n",start+k*4); |
7415 | while(k<=i) { |
7416 | regs[k].regmap_entry[HOST_CCREG]=CCREG; |
7417 | regs[k].regmap[HOST_CCREG]=CCREG; |
7418 | regmap_pre[k+1][HOST_CCREG]=CCREG; |
7419 | regs[k+1].wasdirty|=1<<HOST_CCREG; |
7420 | regs[k].dirty|=1<<HOST_CCREG; |
7421 | regs[k].wasconst&=~(1<<HOST_CCREG); |
7422 | regs[k].isconst&=~(1<<HOST_CCREG); |
7423 | k++; |
7424 | } |
7425 | } |
7426 | else { |
7427 | //printf("Fail Extend CC, %x ->\n",start+k*4); |
7428 | } |
7429 | } |
7430 | } |
7431 | if(itype[i]!=STORE&&itype[i]!=STORELR&&itype[i]!=C1LS&&itype[i]!=SHIFT&& |
7432 | itype[i]!=NOP&&itype[i]!=MOV&&itype[i]!=ALU&&itype[i]!=SHIFTIMM&& |
00fa9369 |
7433 | itype[i]!=IMM16&&itype[i]!=LOAD&&itype[i]!=COP1) |
57871462 |
7434 | { |
7435 | memcpy(f_regmap,regs[i].regmap,sizeof(f_regmap)); |
7436 | } |
7437 | } |
7438 | } |
9f51b4b9 |
7439 | |
57871462 |
7440 | // This allocates registers (if possible) one instruction prior |
7441 | // to use, which can avoid a load-use penalty on certain CPUs. |
7442 | for(i=0;i<slen-1;i++) |
7443 | { |
ad49de89 |
7444 | if(!i||(itype[i-1]!=UJUMP&&itype[i-1]!=CJUMP&&itype[i-1]!=SJUMP&&itype[i-1]!=RJUMP)) |
57871462 |
7445 | { |
7446 | if(!bt[i+1]) |
7447 | { |
b9b61529 |
7448 | if(itype[i]==ALU||itype[i]==MOV||itype[i]==LOAD||itype[i]==SHIFTIMM||itype[i]==IMM16 |
7449 | ||((itype[i]==COP1||itype[i]==COP2)&&opcode2[i]<3)) |
57871462 |
7450 | { |
7451 | if(rs1[i+1]) { |
7452 | if((hr=get_reg(regs[i+1].regmap,rs1[i+1]))>=0) |
7453 | { |
7454 | if(regs[i].regmap[hr]<0&®s[i+1].regmap_entry[hr]<0) |
7455 | { |
7456 | regs[i].regmap[hr]=regs[i+1].regmap[hr]; |
7457 | regmap_pre[i+1][hr]=regs[i+1].regmap[hr]; |
7458 | regs[i+1].regmap_entry[hr]=regs[i+1].regmap[hr]; |
7459 | regs[i].isconst&=~(1<<hr); |
7460 | regs[i].isconst|=regs[i+1].isconst&(1<<hr); |
7461 | constmap[i][hr]=constmap[i+1][hr]; |
7462 | regs[i+1].wasdirty&=~(1<<hr); |
7463 | regs[i].dirty&=~(1<<hr); |
7464 | } |
7465 | } |
7466 | } |
7467 | if(rs2[i+1]) { |
7468 | if((hr=get_reg(regs[i+1].regmap,rs2[i+1]))>=0) |
7469 | { |
7470 | if(regs[i].regmap[hr]<0&®s[i+1].regmap_entry[hr]<0) |
7471 | { |
7472 | regs[i].regmap[hr]=regs[i+1].regmap[hr]; |
7473 | regmap_pre[i+1][hr]=regs[i+1].regmap[hr]; |
7474 | regs[i+1].regmap_entry[hr]=regs[i+1].regmap[hr]; |
7475 | regs[i].isconst&=~(1<<hr); |
7476 | regs[i].isconst|=regs[i+1].isconst&(1<<hr); |
7477 | constmap[i][hr]=constmap[i+1][hr]; |
7478 | regs[i+1].wasdirty&=~(1<<hr); |
7479 | regs[i].dirty&=~(1<<hr); |
7480 | } |
7481 | } |
7482 | } |
198df76f |
7483 | // Preload target address for load instruction (non-constant) |
57871462 |
7484 | if(itype[i+1]==LOAD&&rs1[i+1]&&get_reg(regs[i+1].regmap,rs1[i+1])<0) { |
7485 | if((hr=get_reg(regs[i+1].regmap,rt1[i+1]))>=0) |
7486 | { |
7487 | if(regs[i].regmap[hr]<0&®s[i+1].regmap_entry[hr]<0) |
7488 | { |
7489 | regs[i].regmap[hr]=rs1[i+1]; |
7490 | regmap_pre[i+1][hr]=rs1[i+1]; |
7491 | regs[i+1].regmap_entry[hr]=rs1[i+1]; |
7492 | regs[i].isconst&=~(1<<hr); |
7493 | regs[i].isconst|=regs[i+1].isconst&(1<<hr); |
7494 | constmap[i][hr]=constmap[i+1][hr]; |
7495 | regs[i+1].wasdirty&=~(1<<hr); |
7496 | regs[i].dirty&=~(1<<hr); |
7497 | } |
7498 | } |
7499 | } |
9f51b4b9 |
7500 | // Load source into target register |
57871462 |
7501 | if(lt1[i+1]&&get_reg(regs[i+1].regmap,rs1[i+1])<0) { |
7502 | if((hr=get_reg(regs[i+1].regmap,rt1[i+1]))>=0) |
7503 | { |
7504 | if(regs[i].regmap[hr]<0&®s[i+1].regmap_entry[hr]<0) |
7505 | { |
7506 | regs[i].regmap[hr]=rs1[i+1]; |
7507 | regmap_pre[i+1][hr]=rs1[i+1]; |
7508 | regs[i+1].regmap_entry[hr]=rs1[i+1]; |
7509 | regs[i].isconst&=~(1<<hr); |
7510 | regs[i].isconst|=regs[i+1].isconst&(1<<hr); |
7511 | constmap[i][hr]=constmap[i+1][hr]; |
7512 | regs[i+1].wasdirty&=~(1<<hr); |
7513 | regs[i].dirty&=~(1<<hr); |
7514 | } |
7515 | } |
7516 | } |
198df76f |
7517 | // Address for store instruction (non-constant) |
b9b61529 |
7518 | if(itype[i+1]==STORE||itype[i+1]==STORELR |
7519 | ||(opcode[i+1]&0x3b)==0x39||(opcode[i+1]&0x3b)==0x3a) { // SB/SH/SW/SD/SWC1/SDC1/SWC2/SDC2 |
57871462 |
7520 | if(get_reg(regs[i+1].regmap,rs1[i+1])<0) { |
7521 | hr=get_reg2(regs[i].regmap,regs[i+1].regmap,-1); |
7522 | if(hr<0) hr=get_reg(regs[i+1].regmap,-1); |
7523 | else {regs[i+1].regmap[hr]=AGEN1+((i+1)&1);regs[i+1].isconst&=~(1<<hr);} |
7524 | assert(hr>=0); |
7525 | if(regs[i].regmap[hr]<0&®s[i+1].regmap_entry[hr]<0) |
7526 | { |
7527 | regs[i].regmap[hr]=rs1[i+1]; |
7528 | regmap_pre[i+1][hr]=rs1[i+1]; |
7529 | regs[i+1].regmap_entry[hr]=rs1[i+1]; |
7530 | regs[i].isconst&=~(1<<hr); |
7531 | regs[i].isconst|=regs[i+1].isconst&(1<<hr); |
7532 | constmap[i][hr]=constmap[i+1][hr]; |
7533 | regs[i+1].wasdirty&=~(1<<hr); |
7534 | regs[i].dirty&=~(1<<hr); |
7535 | } |
7536 | } |
7537 | } |
b9b61529 |
7538 | if(itype[i+1]==LOADLR||(opcode[i+1]&0x3b)==0x31||(opcode[i+1]&0x3b)==0x32) { // LWC1/LDC1, LWC2/LDC2 |
57871462 |
7539 | if(get_reg(regs[i+1].regmap,rs1[i+1])<0) { |
7540 | int nr; |
7541 | hr=get_reg(regs[i+1].regmap,FTEMP); |
7542 | assert(hr>=0); |
7543 | if(regs[i].regmap[hr]<0&®s[i+1].regmap_entry[hr]<0) |
7544 | { |
7545 | regs[i].regmap[hr]=rs1[i+1]; |
7546 | regmap_pre[i+1][hr]=rs1[i+1]; |
7547 | regs[i+1].regmap_entry[hr]=rs1[i+1]; |
7548 | regs[i].isconst&=~(1<<hr); |
7549 | regs[i].isconst|=regs[i+1].isconst&(1<<hr); |
7550 | constmap[i][hr]=constmap[i+1][hr]; |
7551 | regs[i+1].wasdirty&=~(1<<hr); |
7552 | regs[i].dirty&=~(1<<hr); |
7553 | } |
7554 | else if((nr=get_reg2(regs[i].regmap,regs[i+1].regmap,-1))>=0) |
7555 | { |
7556 | // move it to another register |
7557 | regs[i+1].regmap[hr]=-1; |
7558 | regmap_pre[i+2][hr]=-1; |
7559 | regs[i+1].regmap[nr]=FTEMP; |
7560 | regmap_pre[i+2][nr]=FTEMP; |
7561 | regs[i].regmap[nr]=rs1[i+1]; |
7562 | regmap_pre[i+1][nr]=rs1[i+1]; |
7563 | regs[i+1].regmap_entry[nr]=rs1[i+1]; |
7564 | regs[i].isconst&=~(1<<nr); |
7565 | regs[i+1].isconst&=~(1<<nr); |
7566 | regs[i].dirty&=~(1<<nr); |
7567 | regs[i+1].wasdirty&=~(1<<nr); |
7568 | regs[i+1].dirty&=~(1<<nr); |
7569 | regs[i+2].wasdirty&=~(1<<nr); |
7570 | } |
7571 | } |
7572 | } |
b9b61529 |
7573 | 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 |
7574 | if(itype[i+1]==LOAD) |
57871462 |
7575 | hr=get_reg(regs[i+1].regmap,rt1[i+1]); |
b9b61529 |
7576 | if(itype[i+1]==LOADLR||(opcode[i+1]&0x3b)==0x31||(opcode[i+1]&0x3b)==0x32) // LWC1/LDC1, LWC2/LDC2 |
57871462 |
7577 | hr=get_reg(regs[i+1].regmap,FTEMP); |
b9b61529 |
7578 | if(itype[i+1]==STORE||itype[i+1]==STORELR||(opcode[i+1]&0x3b)==0x39||(opcode[i+1]&0x3b)==0x3a) { // SWC1/SDC1/SWC2/SDC2 |
57871462 |
7579 | hr=get_reg(regs[i+1].regmap,AGEN1+((i+1)&1)); |
7580 | if(hr<0) hr=get_reg(regs[i+1].regmap,-1); |
7581 | } |
7582 | if(hr>=0&®s[i].regmap[hr]<0) { |
7583 | int rs=get_reg(regs[i+1].regmap,rs1[i+1]); |
7584 | if(rs>=0&&((regs[i+1].wasconst>>rs)&1)) { |
7585 | regs[i].regmap[hr]=AGEN1+((i+1)&1); |
7586 | regmap_pre[i+1][hr]=AGEN1+((i+1)&1); |
7587 | regs[i+1].regmap_entry[hr]=AGEN1+((i+1)&1); |
7588 | regs[i].isconst&=~(1<<hr); |
7589 | regs[i+1].wasdirty&=~(1<<hr); |
7590 | regs[i].dirty&=~(1<<hr); |
7591 | } |
7592 | } |
7593 | } |
7594 | } |
7595 | } |
7596 | } |
7597 | } |
9f51b4b9 |
7598 | |
57871462 |
7599 | /* Pass 6 - Optimize clean/dirty state */ |
7600 | clean_registers(0,slen-1,1); |
9f51b4b9 |
7601 | |
57871462 |
7602 | /* Pass 7 - Identify 32-bit registers */ |
04fd948a |
7603 | for (i=slen-1;i>=0;i--) |
7604 | { |
ad49de89 |
7605 | if(itype[i]==CJUMP||itype[i]==SJUMP) |
04fd948a |
7606 | { |
7607 | // Conditional branch |
7608 | if((source[i]>>16)!=0x1000&&i<slen-2) { |
7609 | // Mark this address as a branch target since it may be called |
7610 | // upon return from interrupt |
7611 | bt[i+2]=1; |
7612 | } |
7613 | } |
7614 | } |
57871462 |
7615 | |
7616 | if(itype[slen-1]==SPAN) { |
7617 | bt[slen-1]=1; // Mark as a branch target so instruction can restart after exception |
7618 | } |
4600ba03 |
7619 | |
7620 | #ifdef DISASM |
57871462 |
7621 | /* Debug/disassembly */ |
57871462 |
7622 | for(i=0;i<slen;i++) |
7623 | { |
7624 | printf("U:"); |
7625 | int r; |
7626 | for(r=1;r<=CCREG;r++) { |
7627 | if((unneeded_reg[i]>>r)&1) { |
7628 | if(r==HIREG) printf(" HI"); |
7629 | else if(r==LOREG) printf(" LO"); |
7630 | else printf(" r%d",r); |
7631 | } |
7632 | } |
57871462 |
7633 | printf("\n"); |
7634 | #if defined(__i386__) || defined(__x86_64__) |
7635 | 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]); |
7636 | #endif |
7637 | #ifdef __arm__ |
7638 | 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]); |
7639 | #endif |
7640 | printf("needs: "); |
7641 | if(needed_reg[i]&1) printf("eax "); |
7642 | if((needed_reg[i]>>1)&1) printf("ecx "); |
7643 | if((needed_reg[i]>>2)&1) printf("edx "); |
7644 | if((needed_reg[i]>>3)&1) printf("ebx "); |
7645 | if((needed_reg[i]>>5)&1) printf("ebp "); |
7646 | if((needed_reg[i]>>6)&1) printf("esi "); |
7647 | if((needed_reg[i]>>7)&1) printf("edi "); |
57871462 |
7648 | printf("\n"); |
57871462 |
7649 | #if defined(__i386__) || defined(__x86_64__) |
7650 | 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]); |
7651 | printf("dirty: "); |
7652 | if(regs[i].wasdirty&1) printf("eax "); |
7653 | if((regs[i].wasdirty>>1)&1) printf("ecx "); |
7654 | if((regs[i].wasdirty>>2)&1) printf("edx "); |
7655 | if((regs[i].wasdirty>>3)&1) printf("ebx "); |
7656 | if((regs[i].wasdirty>>5)&1) printf("ebp "); |
7657 | if((regs[i].wasdirty>>6)&1) printf("esi "); |
7658 | if((regs[i].wasdirty>>7)&1) printf("edi "); |
7659 | #endif |
7660 | #ifdef __arm__ |
7661 | 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]); |
7662 | printf("dirty: "); |
7663 | if(regs[i].wasdirty&1) printf("r0 "); |
7664 | if((regs[i].wasdirty>>1)&1) printf("r1 "); |
7665 | if((regs[i].wasdirty>>2)&1) printf("r2 "); |
7666 | if((regs[i].wasdirty>>3)&1) printf("r3 "); |
7667 | if((regs[i].wasdirty>>4)&1) printf("r4 "); |
7668 | if((regs[i].wasdirty>>5)&1) printf("r5 "); |
7669 | if((regs[i].wasdirty>>6)&1) printf("r6 "); |
7670 | if((regs[i].wasdirty>>7)&1) printf("r7 "); |
7671 | if((regs[i].wasdirty>>8)&1) printf("r8 "); |
7672 | if((regs[i].wasdirty>>9)&1) printf("r9 "); |
7673 | if((regs[i].wasdirty>>10)&1) printf("r10 "); |
7674 | if((regs[i].wasdirty>>12)&1) printf("r12 "); |
7675 | #endif |
7676 | printf("\n"); |
7677 | disassemble_inst(i); |
7678 | //printf ("ccadj[%d] = %d\n",i,ccadj[i]); |
7679 | #if defined(__i386__) || defined(__x86_64__) |
7680 | 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]); |
7681 | if(regs[i].dirty&1) printf("eax "); |
7682 | if((regs[i].dirty>>1)&1) printf("ecx "); |
7683 | if((regs[i].dirty>>2)&1) printf("edx "); |
7684 | if((regs[i].dirty>>3)&1) printf("ebx "); |
7685 | if((regs[i].dirty>>5)&1) printf("ebp "); |
7686 | if((regs[i].dirty>>6)&1) printf("esi "); |
7687 | if((regs[i].dirty>>7)&1) printf("edi "); |
7688 | #endif |
7689 | #ifdef __arm__ |
7690 | 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]); |
7691 | if(regs[i].dirty&1) printf("r0 "); |
7692 | if((regs[i].dirty>>1)&1) printf("r1 "); |
7693 | if((regs[i].dirty>>2)&1) printf("r2 "); |
7694 | if((regs[i].dirty>>3)&1) printf("r3 "); |
7695 | if((regs[i].dirty>>4)&1) printf("r4 "); |
7696 | if((regs[i].dirty>>5)&1) printf("r5 "); |
7697 | if((regs[i].dirty>>6)&1) printf("r6 "); |
7698 | if((regs[i].dirty>>7)&1) printf("r7 "); |
7699 | if((regs[i].dirty>>8)&1) printf("r8 "); |
7700 | if((regs[i].dirty>>9)&1) printf("r9 "); |
7701 | if((regs[i].dirty>>10)&1) printf("r10 "); |
7702 | if((regs[i].dirty>>12)&1) printf("r12 "); |
7703 | #endif |
7704 | printf("\n"); |
7705 | if(regs[i].isconst) { |
7706 | printf("constants: "); |
7707 | #if defined(__i386__) || defined(__x86_64__) |
643aeae3 |
7708 | if(regs[i].isconst&1) printf("eax=%x ",(u_int)constmap[i][0]); |
7709 | if((regs[i].isconst>>1)&1) printf("ecx=%x ",(u_int)constmap[i][1]); |
7710 | if((regs[i].isconst>>2)&1) printf("edx=%x ",(u_int)constmap[i][2]); |
7711 | if((regs[i].isconst>>3)&1) printf("ebx=%x ",(u_int)constmap[i][3]); |
7712 | if((regs[i].isconst>>5)&1) printf("ebp=%x ",(u_int)constmap[i][5]); |
7713 | if((regs[i].isconst>>6)&1) printf("esi=%x ",(u_int)constmap[i][6]); |
7714 | if((regs[i].isconst>>7)&1) printf("edi=%x ",(u_int)constmap[i][7]); |
57871462 |
7715 | #endif |
7716 | #ifdef __arm__ |
643aeae3 |
7717 | int r; |
7718 | for (r = 0; r < ARRAY_SIZE(constmap[i]); r++) |
7719 | if ((regs[i].isconst >> r) & 1) |
7720 | printf(" r%d=%x", r, (u_int)constmap[i][r]); |
57871462 |
7721 | #endif |
7722 | printf("\n"); |
7723 | } |
ad49de89 |
7724 | if(itype[i]==RJUMP||itype[i]==UJUMP||itype[i]==CJUMP||itype[i]==SJUMP) { |
57871462 |
7725 | #if defined(__i386__) || defined(__x86_64__) |
7726 | 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]); |
7727 | if(branch_regs[i].dirty&1) printf("eax "); |
7728 | if((branch_regs[i].dirty>>1)&1) printf("ecx "); |
7729 | if((branch_regs[i].dirty>>2)&1) printf("edx "); |
7730 | if((branch_regs[i].dirty>>3)&1) printf("ebx "); |
7731 | if((branch_regs[i].dirty>>5)&1) printf("ebp "); |
7732 | if((branch_regs[i].dirty>>6)&1) printf("esi "); |
7733 | if((branch_regs[i].dirty>>7)&1) printf("edi "); |
7734 | #endif |
7735 | #ifdef __arm__ |
7736 | 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]); |
7737 | if(branch_regs[i].dirty&1) printf("r0 "); |
7738 | if((branch_regs[i].dirty>>1)&1) printf("r1 "); |
7739 | if((branch_regs[i].dirty>>2)&1) printf("r2 "); |
7740 | if((branch_regs[i].dirty>>3)&1) printf("r3 "); |
7741 | if((branch_regs[i].dirty>>4)&1) printf("r4 "); |
7742 | if((branch_regs[i].dirty>>5)&1) printf("r5 "); |
7743 | if((branch_regs[i].dirty>>6)&1) printf("r6 "); |
7744 | if((branch_regs[i].dirty>>7)&1) printf("r7 "); |
7745 | if((branch_regs[i].dirty>>8)&1) printf("r8 "); |
7746 | if((branch_regs[i].dirty>>9)&1) printf("r9 "); |
7747 | if((branch_regs[i].dirty>>10)&1) printf("r10 "); |
7748 | if((branch_regs[i].dirty>>12)&1) printf("r12 "); |
7749 | #endif |
57871462 |
7750 | } |
7751 | } |
4600ba03 |
7752 | #endif // DISASM |
57871462 |
7753 | |
7754 | /* Pass 8 - Assembly */ |
7755 | linkcount=0;stubcount=0; |
7756 | ds=0;is_delayslot=0; |
57871462 |
7757 | u_int dirty_pre=0; |
d148d265 |
7758 | void *beginning=start_block(); |
57871462 |
7759 | if((u_int)addr&1) { |
7760 | ds=1; |
7761 | pagespan_ds(); |
7762 | } |
df4dc2b1 |
7763 | void *instr_addr0_override = NULL; |
9ad4d757 |
7764 | |
9ad4d757 |
7765 | if (start == 0x80030000) { |
7766 | // nasty hack for fastbios thing |
96186eba |
7767 | // override block entry to this code |
df4dc2b1 |
7768 | instr_addr0_override = out; |
9ad4d757 |
7769 | emit_movimm(start,0); |
96186eba |
7770 | // abuse io address var as a flag that we |
7771 | // have already returned here once |
643aeae3 |
7772 | emit_readword(&address,1); |
7773 | emit_writeword(0,&pcaddr); |
7774 | emit_writeword(0,&address); |
9ad4d757 |
7775 | emit_cmp(0,1); |
643aeae3 |
7776 | emit_jne(new_dyna_leave); |
9ad4d757 |
7777 | } |
57871462 |
7778 | for(i=0;i<slen;i++) |
7779 | { |
7780 | //if(ds) printf("ds: "); |
4600ba03 |
7781 | disassemble_inst(i); |
57871462 |
7782 | if(ds) { |
7783 | ds=0; // Skip delay slot |
7784 | if(bt[i]) assem_debug("OOPS - branch into delay slot\n"); |
df4dc2b1 |
7785 | instr_addr[i] = NULL; |
57871462 |
7786 | } else { |
ffb0b9e0 |
7787 | speculate_register_values(i); |
57871462 |
7788 | #ifndef DESTRUCTIVE_WRITEBACK |
7789 | if(i<2||(itype[i-2]!=UJUMP&&itype[i-2]!=RJUMP&&(source[i-2]>>16)!=0x1000)) |
7790 | { |
ad49de89 |
7791 | wb_valid(regmap_pre[i],regs[i].regmap_entry,dirty_pre,regs[i].wasdirty,unneeded_reg[i]); |
57871462 |
7792 | } |
ad49de89 |
7793 | if((itype[i]==CJUMP||itype[i]==SJUMP)&&!likely[i]) { |
f776eb14 |
7794 | dirty_pre=branch_regs[i].dirty; |
7795 | }else{ |
f776eb14 |
7796 | dirty_pre=regs[i].dirty; |
7797 | } |
57871462 |
7798 | #endif |
7799 | // write back |
7800 | if(i<2||(itype[i-2]!=UJUMP&&itype[i-2]!=RJUMP&&(source[i-2]>>16)!=0x1000)) |
7801 | { |
ad49de89 |
7802 | wb_invalidate(regmap_pre[i],regs[i].regmap_entry,regs[i].wasdirty,unneeded_reg[i]); |
57871462 |
7803 | loop_preload(regmap_pre[i],regs[i].regmap_entry); |
7804 | } |
7805 | // branch target entry point |
df4dc2b1 |
7806 | instr_addr[i] = out; |
57871462 |
7807 | assem_debug("<->\n"); |
dd114d7d |
7808 | drc_dbg_emit_do_cmp(i); |
7809 | |
57871462 |
7810 | // load regs |
7811 | if(regs[i].regmap_entry[HOST_CCREG]==CCREG&®s[i].regmap[HOST_CCREG]!=CCREG) |
ad49de89 |
7812 | wb_register(CCREG,regs[i].regmap_entry,regs[i].wasdirty); |
7813 | load_regs(regs[i].regmap_entry,regs[i].regmap,rs1[i],rs2[i]); |
57871462 |
7814 | address_generation(i,®s[i],regs[i].regmap_entry); |
ad49de89 |
7815 | load_consts(regmap_pre[i],regs[i].regmap,i); |
7816 | if(itype[i]==RJUMP||itype[i]==UJUMP||itype[i]==CJUMP||itype[i]==SJUMP) |
57871462 |
7817 | { |
7818 | // Load the delay slot registers if necessary |
4ef8f67d |
7819 | if(rs1[i+1]!=rs1[i]&&rs1[i+1]!=rs2[i]&&(rs1[i+1]!=rt1[i]||rt1[i]==0)) |
ad49de89 |
7820 | load_regs(regs[i].regmap_entry,regs[i].regmap,rs1[i+1],rs1[i+1]); |
4ef8f67d |
7821 | 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 |
7822 | load_regs(regs[i].regmap_entry,regs[i].regmap,rs2[i+1],rs2[i+1]); |
b9b61529 |
7823 | if(itype[i+1]==STORE||itype[i+1]==STORELR||(opcode[i+1]&0x3b)==0x39||(opcode[i+1]&0x3b)==0x3a) |
ad49de89 |
7824 | load_regs(regs[i].regmap_entry,regs[i].regmap,INVCP,INVCP); |
57871462 |
7825 | } |
7826 | else if(i+1<slen) |
7827 | { |
7828 | // Preload registers for following instruction |
7829 | if(rs1[i+1]!=rs1[i]&&rs1[i+1]!=rs2[i]) |
7830 | if(rs1[i+1]!=rt1[i]&&rs1[i+1]!=rt2[i]) |
ad49de89 |
7831 | load_regs(regs[i].regmap_entry,regs[i].regmap,rs1[i+1],rs1[i+1]); |
57871462 |
7832 | if(rs2[i+1]!=rs1[i+1]&&rs2[i+1]!=rs1[i]&&rs2[i+1]!=rs2[i]) |
7833 | if(rs2[i+1]!=rt1[i]&&rs2[i+1]!=rt2[i]) |
ad49de89 |
7834 | load_regs(regs[i].regmap_entry,regs[i].regmap,rs2[i+1],rs2[i+1]); |
57871462 |
7835 | } |
7836 | // TODO: if(is_ooo(i)) address_generation(i+1); |
ad49de89 |
7837 | if(itype[i]==CJUMP) |
7838 | load_regs(regs[i].regmap_entry,regs[i].regmap,CCREG,CCREG); |
b9b61529 |
7839 | if(itype[i]==STORE||itype[i]==STORELR||(opcode[i]&0x3b)==0x39||(opcode[i]&0x3b)==0x3a) |
ad49de89 |
7840 | load_regs(regs[i].regmap_entry,regs[i].regmap,INVCP,INVCP); |
57871462 |
7841 | // assemble |
7842 | switch(itype[i]) { |
7843 | case ALU: |
7844 | alu_assemble(i,®s[i]);break; |
7845 | case IMM16: |
7846 | imm16_assemble(i,®s[i]);break; |
7847 | case SHIFT: |
7848 | shift_assemble(i,®s[i]);break; |
7849 | case SHIFTIMM: |
7850 | shiftimm_assemble(i,®s[i]);break; |
7851 | case LOAD: |
7852 | load_assemble(i,®s[i]);break; |
7853 | case LOADLR: |
7854 | loadlr_assemble(i,®s[i]);break; |
7855 | case STORE: |
7856 | store_assemble(i,®s[i]);break; |
7857 | case STORELR: |
7858 | storelr_assemble(i,®s[i]);break; |
7859 | case COP0: |
7860 | cop0_assemble(i,®s[i]);break; |
7861 | case COP1: |
7862 | cop1_assemble(i,®s[i]);break; |
7863 | case C1LS: |
7864 | c1ls_assemble(i,®s[i]);break; |
b9b61529 |
7865 | case COP2: |
7866 | cop2_assemble(i,®s[i]);break; |
7867 | case C2LS: |
7868 | c2ls_assemble(i,®s[i]);break; |
7869 | case C2OP: |
7870 | c2op_assemble(i,®s[i]);break; |
57871462 |
7871 | case MULTDIV: |
7872 | multdiv_assemble(i,®s[i]);break; |
7873 | case MOV: |
7874 | mov_assemble(i,®s[i]);break; |
7875 | case SYSCALL: |
7876 | syscall_assemble(i,®s[i]);break; |
7139f3c8 |
7877 | case HLECALL: |
7878 | hlecall_assemble(i,®s[i]);break; |
1e973cb0 |
7879 | case INTCALL: |
7880 | intcall_assemble(i,®s[i]);break; |
57871462 |
7881 | case UJUMP: |
7882 | ujump_assemble(i,®s[i]);ds=1;break; |
7883 | case RJUMP: |
7884 | rjump_assemble(i,®s[i]);ds=1;break; |
7885 | case CJUMP: |
7886 | cjump_assemble(i,®s[i]);ds=1;break; |
7887 | case SJUMP: |
7888 | sjump_assemble(i,®s[i]);ds=1;break; |
57871462 |
7889 | case SPAN: |
7890 | pagespan_assemble(i,®s[i]);break; |
7891 | } |
7892 | if(itype[i]==UJUMP||itype[i]==RJUMP||(source[i]>>16)==0x1000) |
7893 | literal_pool(1024); |
7894 | else |
7895 | literal_pool_jumpover(256); |
7896 | } |
7897 | } |
7898 | //assert(itype[i-2]==UJUMP||itype[i-2]==RJUMP||(source[i-2]>>16)==0x1000); |
7899 | // If the block did not end with an unconditional branch, |
7900 | // add a jump to the next instruction. |
7901 | if(i>1) { |
7902 | if(itype[i-2]!=UJUMP&&itype[i-2]!=RJUMP&&(source[i-2]>>16)!=0x1000&&itype[i-1]!=SPAN) { |
ad49de89 |
7903 | assert(itype[i-1]!=UJUMP&&itype[i-1]!=CJUMP&&itype[i-1]!=SJUMP&&itype[i-1]!=RJUMP); |
57871462 |
7904 | assert(i==slen); |
ad49de89 |
7905 | if(itype[i-2]!=CJUMP&&itype[i-2]!=SJUMP) { |
7906 | store_regs_bt(regs[i-1].regmap,regs[i-1].dirty,start+i*4); |
57871462 |
7907 | if(regs[i-1].regmap[HOST_CCREG]!=CCREG) |
7908 | emit_loadreg(CCREG,HOST_CCREG); |
2573466a |
7909 | emit_addimm(HOST_CCREG,CLOCK_ADJUST(ccadj[i-1]+1),HOST_CCREG); |
57871462 |
7910 | } |
7911 | else if(!likely[i-2]) |
7912 | { |
ad49de89 |
7913 | store_regs_bt(branch_regs[i-2].regmap,branch_regs[i-2].dirty,start+i*4); |
57871462 |
7914 | assert(branch_regs[i-2].regmap[HOST_CCREG]==CCREG); |
7915 | } |
7916 | else |
7917 | { |
ad49de89 |
7918 | store_regs_bt(regs[i-2].regmap,regs[i-2].dirty,start+i*4); |
57871462 |
7919 | assert(regs[i-2].regmap[HOST_CCREG]==CCREG); |
7920 | } |
643aeae3 |
7921 | add_to_linker(out,start+i*4,0); |
57871462 |
7922 | emit_jmp(0); |
7923 | } |
7924 | } |
7925 | else |
7926 | { |
7927 | assert(i>0); |
ad49de89 |
7928 | assert(itype[i-1]!=UJUMP&&itype[i-1]!=CJUMP&&itype[i-1]!=SJUMP&&itype[i-1]!=RJUMP); |
7929 | store_regs_bt(regs[i-1].regmap,regs[i-1].dirty,start+i*4); |
57871462 |
7930 | if(regs[i-1].regmap[HOST_CCREG]!=CCREG) |
7931 | emit_loadreg(CCREG,HOST_CCREG); |
2573466a |
7932 | emit_addimm(HOST_CCREG,CLOCK_ADJUST(ccadj[i-1]+1),HOST_CCREG); |
643aeae3 |
7933 | add_to_linker(out,start+i*4,0); |
57871462 |
7934 | emit_jmp(0); |
7935 | } |
7936 | |
7937 | // TODO: delay slot stubs? |
7938 | // Stubs |
7939 | for(i=0;i<stubcount;i++) |
7940 | { |
b14b6a8f |
7941 | switch(stubs[i].type) |
57871462 |
7942 | { |
7943 | case LOADB_STUB: |
7944 | case LOADH_STUB: |
7945 | case LOADW_STUB: |
7946 | case LOADD_STUB: |
7947 | case LOADBU_STUB: |
7948 | case LOADHU_STUB: |
7949 | do_readstub(i);break; |
7950 | case STOREB_STUB: |
7951 | case STOREH_STUB: |
7952 | case STOREW_STUB: |
7953 | case STORED_STUB: |
7954 | do_writestub(i);break; |
7955 | case CC_STUB: |
7956 | do_ccstub(i);break; |
7957 | case INVCODE_STUB: |
7958 | do_invstub(i);break; |
7959 | case FP_STUB: |
7960 | do_cop1stub(i);break; |
7961 | case STORELR_STUB: |
7962 | do_unalignedwritestub(i);break; |
7963 | } |
7964 | } |
7965 | |
9ad4d757 |
7966 | if (instr_addr0_override) |
7967 | instr_addr[0] = instr_addr0_override; |
7968 | |
57871462 |
7969 | /* Pass 9 - Linker */ |
7970 | for(i=0;i<linkcount;i++) |
7971 | { |
643aeae3 |
7972 | assem_debug("%p -> %8x\n",link_addr[i].addr,link_addr[i].target); |
57871462 |
7973 | literal_pool(64); |
643aeae3 |
7974 | if (!link_addr[i].ext) |
57871462 |
7975 | { |
643aeae3 |
7976 | void *stub = out; |
7977 | void *addr = check_addr(link_addr[i].target); |
7978 | emit_extjump(link_addr[i].addr, link_addr[i].target); |
7979 | if (addr) { |
7980 | set_jump_target(link_addr[i].addr, addr); |
7981 | add_link(link_addr[i].target,stub); |
57871462 |
7982 | } |
643aeae3 |
7983 | else |
7984 | set_jump_target(link_addr[i].addr, stub); |
57871462 |
7985 | } |
7986 | else |
7987 | { |
7988 | // Internal branch |
643aeae3 |
7989 | int target=(link_addr[i].target-start)>>2; |
57871462 |
7990 | assert(target>=0&&target<slen); |
7991 | assert(instr_addr[target]); |
7992 | //#ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
643aeae3 |
7993 | //set_jump_target_fillslot(link_addr[i].addr,instr_addr[target],link_addr[i].ext>>1); |
57871462 |
7994 | //#else |
643aeae3 |
7995 | set_jump_target(link_addr[i].addr, instr_addr[target]); |
57871462 |
7996 | //#endif |
7997 | } |
7998 | } |
7999 | // External Branch Targets (jump_in) |
8000 | if(copy+slen*4>(void *)shadow+sizeof(shadow)) copy=shadow; |
8001 | for(i=0;i<slen;i++) |
8002 | { |
8003 | if(bt[i]||i==0) |
8004 | { |
8005 | if(instr_addr[i]) // TODO - delay slots (=null) |
8006 | { |
8007 | u_int vaddr=start+i*4; |
94d23bb9 |
8008 | u_int page=get_page(vaddr); |
8009 | u_int vpage=get_vpage(vaddr); |
57871462 |
8010 | literal_pool(256); |
57871462 |
8011 | { |
df4dc2b1 |
8012 | assem_debug("%p (%d) <- %8x\n",instr_addr[i],i,start+i*4); |
57871462 |
8013 | assem_debug("jump_in: %x\n",start+i*4); |
df4dc2b1 |
8014 | ll_add(jump_dirty+vpage,vaddr,out); |
8015 | void *entry_point = do_dirty_stub(i); |
8016 | ll_add_flags(jump_in+page,vaddr,state_rflags,entry_point); |
57871462 |
8017 | // If there was an existing entry in the hash table, |
8018 | // replace it with the new address. |
8019 | // Don't add new entries. We'll insert the |
8020 | // ones that actually get used in check_addr(). |
df4dc2b1 |
8021 | struct ht_entry *ht_bin = hash_table_get(vaddr); |
8022 | if (ht_bin->vaddr[0] == vaddr) |
8023 | ht_bin->tcaddr[0] = entry_point; |
8024 | if (ht_bin->vaddr[1] == vaddr) |
8025 | ht_bin->tcaddr[1] = entry_point; |
57871462 |
8026 | } |
57871462 |
8027 | } |
8028 | } |
8029 | } |
8030 | // Write out the literal pool if necessary |
8031 | literal_pool(0); |
8032 | #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
8033 | // Align code |
8034 | if(((u_int)out)&7) emit_addnop(13); |
8035 | #endif |
01d26796 |
8036 | assert(out - (u_char *)beginning < MAX_OUTPUT_BLOCK_SIZE); |
643aeae3 |
8037 | //printf("shadow buffer: %p-%p\n",copy,(u_char *)copy+slen*4); |
57871462 |
8038 | memcpy(copy,source,slen*4); |
8039 | copy+=slen*4; |
9f51b4b9 |
8040 | |
d148d265 |
8041 | end_block(beginning); |
9f51b4b9 |
8042 | |
57871462 |
8043 | // If we're within 256K of the end of the buffer, |
8044 | // start over from the beginning. (Is 256K enough?) |
643aeae3 |
8045 | if (out > translation_cache+(1<<TARGET_SIZE_2)-MAX_OUTPUT_BLOCK_SIZE) |
8046 | out = translation_cache; |
9f51b4b9 |
8047 | |
57871462 |
8048 | // Trap writes to any of the pages we compiled |
8049 | for(i=start>>12;i<=(start+slen*4)>>12;i++) { |
8050 | invalid_code[i]=0; |
57871462 |
8051 | } |
9be4ba64 |
8052 | inv_code_start=inv_code_end=~0; |
71e490c5 |
8053 | |
b96d3df7 |
8054 | // for PCSX we need to mark all mirrors too |
b12c9fb8 |
8055 | if(get_page(start)<(RAM_SIZE>>12)) |
8056 | for(i=start>>12;i<=(start+slen*4)>>12;i++) |
b96d3df7 |
8057 | invalid_code[((u_int)0x00000000>>12)|(i&0x1ff)]= |
8058 | invalid_code[((u_int)0x80000000>>12)|(i&0x1ff)]= |
8059 | invalid_code[((u_int)0xa0000000>>12)|(i&0x1ff)]=0; |
9f51b4b9 |
8060 | |
57871462 |
8061 | /* Pass 10 - Free memory by expiring oldest blocks */ |
9f51b4b9 |
8062 | |
643aeae3 |
8063 | int end=(((out-translation_cache)>>(TARGET_SIZE_2-16))+16384)&65535; |
57871462 |
8064 | while(expirep!=end) |
8065 | { |
8066 | int shift=TARGET_SIZE_2-3; // Divide into 8 blocks |
643aeae3 |
8067 | uintptr_t base=(uintptr_t)translation_cache+((expirep>>13)<<shift); // Base address of this block |
57871462 |
8068 | inv_debug("EXP: Phase %d\n",expirep); |
8069 | switch((expirep>>11)&3) |
8070 | { |
8071 | case 0: |
8072 | // Clear jump_in and jump_dirty |
8073 | ll_remove_matching_addrs(jump_in+(expirep&2047),base,shift); |
8074 | ll_remove_matching_addrs(jump_dirty+(expirep&2047),base,shift); |
8075 | ll_remove_matching_addrs(jump_in+2048+(expirep&2047),base,shift); |
8076 | ll_remove_matching_addrs(jump_dirty+2048+(expirep&2047),base,shift); |
8077 | break; |
8078 | case 1: |
8079 | // Clear pointers |
8080 | ll_kill_pointers(jump_out[expirep&2047],base,shift); |
8081 | ll_kill_pointers(jump_out[(expirep&2047)+2048],base,shift); |
8082 | break; |
8083 | case 2: |
8084 | // Clear hash table |
8085 | for(i=0;i<32;i++) { |
df4dc2b1 |
8086 | struct ht_entry *ht_bin = &hash_table[((expirep&2047)<<5)+i]; |
8087 | if (((uintptr_t)ht_bin->tcaddr[1]>>shift) == (base>>shift) || |
8088 | (((uintptr_t)ht_bin->tcaddr[1]-MAX_OUTPUT_BLOCK_SIZE)>>shift)==(base>>shift)) { |
8089 | inv_debug("EXP: Remove hash %x -> %p\n",ht_bin->vaddr[1],ht_bin->tcaddr[1]); |
8090 | ht_bin->vaddr[1] = -1; |
8091 | ht_bin->tcaddr[1] = NULL; |
8092 | } |
8093 | if (((uintptr_t)ht_bin->tcaddr[0]>>shift) == (base>>shift) || |
8094 | (((uintptr_t)ht_bin->tcaddr[0]-MAX_OUTPUT_BLOCK_SIZE)>>shift)==(base>>shift)) { |
8095 | inv_debug("EXP: Remove hash %x -> %p\n",ht_bin->vaddr[0],ht_bin->tcaddr[0]); |
8096 | ht_bin->vaddr[0] = ht_bin->vaddr[1]; |
8097 | ht_bin->tcaddr[0] = ht_bin->tcaddr[1]; |
8098 | ht_bin->vaddr[1] = -1; |
8099 | ht_bin->tcaddr[1] = NULL; |
57871462 |
8100 | } |
8101 | } |
8102 | break; |
8103 | case 3: |
8104 | // Clear jump_out |
dd3a91a1 |
8105 | #ifdef __arm__ |
9f51b4b9 |
8106 | if((expirep&2047)==0) |
dd3a91a1 |
8107 | do_clear_cache(); |
8108 | #endif |
57871462 |
8109 | ll_remove_matching_addrs(jump_out+(expirep&2047),base,shift); |
8110 | ll_remove_matching_addrs(jump_out+2048+(expirep&2047),base,shift); |
8111 | break; |
8112 | } |
8113 | expirep=(expirep+1)&65535; |
8114 | } |
8115 | return 0; |
8116 | } |
b9b61529 |
8117 | |
8118 | // vim:shiftwidth=2:expandtab |