630b122b |
1 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * |
2 | * Mupen64plus/PCSX - assem_arm.c * |
3 | * Copyright (C) 2009-2011 Ari64 * |
4 | * Copyright (C) 2010-2021 GraÅžvydas "notaz" Ignotas * |
5 | * * |
6 | * This program is free software; you can redistribute it and/or modify * |
7 | * it under the terms of the GNU General Public License as published by * |
8 | * the Free Software Foundation; either version 2 of the License, or * |
9 | * (at your option) any later version. * |
10 | * * |
11 | * This program is distributed in the hope that it will be useful, * |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
14 | * GNU General Public License for more details. * |
15 | * * |
16 | * You should have received a copy of the GNU General Public License * |
17 | * along with this program; if not, write to the * |
18 | * Free Software Foundation, Inc., * |
19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * |
20 | * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
21 | |
22 | #define FLAGLESS |
23 | #include "../gte.h" |
24 | #undef FLAGLESS |
25 | #include "../gte_arm.h" |
26 | #include "../gte_neon.h" |
27 | #include "pcnt.h" |
28 | #include "arm_features.h" |
29 | |
30 | #define unused __attribute__((unused)) |
31 | |
32 | #ifdef DRC_DBG |
33 | #pragma GCC diagnostic ignored "-Wunused-function" |
34 | #pragma GCC diagnostic ignored "-Wunused-variable" |
35 | #pragma GCC diagnostic ignored "-Wunused-but-set-variable" |
36 | #endif |
37 | |
38 | void indirect_jump_indexed(); |
39 | void indirect_jump(); |
40 | void do_interrupt(); |
41 | void jump_vaddr_r0(); |
42 | void jump_vaddr_r1(); |
43 | void jump_vaddr_r2(); |
44 | void jump_vaddr_r3(); |
45 | void jump_vaddr_r4(); |
46 | void jump_vaddr_r5(); |
47 | void jump_vaddr_r6(); |
48 | void jump_vaddr_r7(); |
49 | void jump_vaddr_r8(); |
50 | void jump_vaddr_r9(); |
51 | void jump_vaddr_r10(); |
52 | void jump_vaddr_r12(); |
53 | |
54 | void * const jump_vaddr_reg[16] = { |
55 | jump_vaddr_r0, |
56 | jump_vaddr_r1, |
57 | jump_vaddr_r2, |
58 | jump_vaddr_r3, |
59 | jump_vaddr_r4, |
60 | jump_vaddr_r5, |
61 | jump_vaddr_r6, |
62 | jump_vaddr_r7, |
63 | jump_vaddr_r8, |
64 | jump_vaddr_r9, |
65 | jump_vaddr_r10, |
66 | 0, |
67 | jump_vaddr_r12, |
68 | 0, |
69 | 0, |
70 | 0 |
71 | }; |
72 | |
73 | void invalidate_addr_r0(); |
74 | void invalidate_addr_r1(); |
75 | void invalidate_addr_r2(); |
76 | void invalidate_addr_r3(); |
77 | void invalidate_addr_r4(); |
78 | void invalidate_addr_r5(); |
79 | void invalidate_addr_r6(); |
80 | void invalidate_addr_r7(); |
81 | void invalidate_addr_r8(); |
82 | void invalidate_addr_r9(); |
83 | void invalidate_addr_r10(); |
84 | void invalidate_addr_r12(); |
85 | |
86 | const u_int invalidate_addr_reg[16] = { |
87 | (int)invalidate_addr_r0, |
88 | (int)invalidate_addr_r1, |
89 | (int)invalidate_addr_r2, |
90 | (int)invalidate_addr_r3, |
91 | (int)invalidate_addr_r4, |
92 | (int)invalidate_addr_r5, |
93 | (int)invalidate_addr_r6, |
94 | (int)invalidate_addr_r7, |
95 | (int)invalidate_addr_r8, |
96 | (int)invalidate_addr_r9, |
97 | (int)invalidate_addr_r10, |
98 | 0, |
99 | (int)invalidate_addr_r12, |
100 | 0, |
101 | 0, |
102 | 0}; |
103 | |
630b122b |
104 | /* Linker */ |
105 | |
106 | static void set_jump_target(void *addr, void *target_) |
107 | { |
108 | u_int target = (u_int)target_; |
109 | u_char *ptr = addr; |
110 | u_int *ptr2=(u_int *)ptr; |
111 | if(ptr[3]==0xe2) { |
112 | assert((target-(u_int)ptr2-8)<1024); |
113 | assert(((uintptr_t)addr&3)==0); |
114 | assert((target&3)==0); |
115 | *ptr2=(*ptr2&0xFFFFF000)|((target-(u_int)ptr2-8)>>2)|0xF00; |
116 | //printf("target=%x addr=%p insn=%x\n",target,addr,*ptr2); |
117 | } |
118 | else if(ptr[3]==0x72) { |
119 | // generated by emit_jno_unlikely |
120 | if((target-(u_int)ptr2-8)<1024) { |
121 | assert(((uintptr_t)addr&3)==0); |
122 | assert((target&3)==0); |
123 | *ptr2=(*ptr2&0xFFFFF000)|((target-(u_int)ptr2-8)>>2)|0xF00; |
124 | } |
125 | else if((target-(u_int)ptr2-8)<4096&&!((target-(u_int)ptr2-8)&15)) { |
126 | assert(((uintptr_t)addr&3)==0); |
127 | assert((target&3)==0); |
128 | *ptr2=(*ptr2&0xFFFFF000)|((target-(u_int)ptr2-8)>>4)|0xE00; |
129 | } |
130 | else *ptr2=(0x7A000000)|(((target-(u_int)ptr2-8)<<6)>>8); |
131 | } |
132 | else { |
133 | assert((ptr[3]&0x0e)==0xa); |
134 | *ptr2=(*ptr2&0xFF000000)|(((target-(u_int)ptr2-8)<<6)>>8); |
135 | } |
136 | } |
137 | |
138 | // This optionally copies the instruction from the target of the branch into |
139 | // the space before the branch. Works, but the difference in speed is |
140 | // usually insignificant. |
141 | #if 0 |
142 | static void set_jump_target_fillslot(int addr,u_int target,int copy) |
143 | { |
144 | u_char *ptr=(u_char *)addr; |
145 | u_int *ptr2=(u_int *)ptr; |
146 | assert(!copy||ptr2[-1]==0xe28dd000); |
147 | if(ptr[3]==0xe2) { |
148 | assert(!copy); |
149 | assert((target-(u_int)ptr2-8)<4096); |
150 | *ptr2=(*ptr2&0xFFFFF000)|(target-(u_int)ptr2-8); |
151 | } |
152 | else { |
153 | assert((ptr[3]&0x0e)==0xa); |
154 | u_int target_insn=*(u_int *)target; |
155 | if((target_insn&0x0e100000)==0) { // ALU, no immediate, no flags |
156 | copy=0; |
157 | } |
158 | if((target_insn&0x0c100000)==0x04100000) { // Load |
159 | copy=0; |
160 | } |
161 | if(target_insn&0x08000000) { |
162 | copy=0; |
163 | } |
164 | if(copy) { |
165 | ptr2[-1]=target_insn; |
166 | target+=4; |
167 | } |
168 | *ptr2=(*ptr2&0xFF000000)|(((target-(u_int)ptr2-8)<<6)>>8); |
169 | } |
170 | } |
171 | #endif |
172 | |
173 | /* Literal pool */ |
174 | static void add_literal(int addr,int val) |
175 | { |
176 | assert(literalcount<sizeof(literals)/sizeof(literals[0])); |
177 | literals[literalcount][0]=addr; |
178 | literals[literalcount][1]=val; |
179 | literalcount++; |
180 | } |
181 | |
182 | // from a pointer to external jump stub (which was produced by emit_extjump2) |
183 | // find where the jumping insn is |
184 | static void *find_extjump_insn(void *stub) |
185 | { |
186 | int *ptr=(int *)(stub+4); |
187 | assert((*ptr&0x0fff0000)==0x059f0000); // ldr rx, [pc, #ofs] |
188 | u_int offset=*ptr&0xfff; |
189 | void **l_ptr=(void *)ptr+offset+8; |
190 | return *l_ptr; |
191 | } |
192 | |
193 | // find where external branch is liked to using addr of it's stub: |
194 | // get address that insn one after stub loads (dyna_linker arg1), |
195 | // treat it as a pointer to branch insn, |
196 | // return addr where that branch jumps to |
197 | static void *get_pointer(void *stub) |
198 | { |
199 | //printf("get_pointer(%x)\n",(int)stub); |
200 | int *i_ptr=find_extjump_insn(stub); |
201 | assert((*i_ptr&0x0f000000)==0x0a000000); // b |
202 | return (u_char *)i_ptr+((*i_ptr<<8)>>6)+8; |
203 | } |
204 | |
205 | // Find the "clean" entry point from a "dirty" entry point |
206 | // by skipping past the call to verify_code |
207 | static void *get_clean_addr(void *addr) |
208 | { |
209 | signed int *ptr = addr; |
210 | #ifndef HAVE_ARMV7 |
211 | ptr+=4; |
212 | #else |
213 | ptr+=6; |
214 | #endif |
215 | if((*ptr&0xFF000000)!=0xeb000000) ptr++; |
216 | assert((*ptr&0xFF000000)==0xeb000000); // bl instruction |
217 | ptr++; |
218 | if((*ptr&0xFF000000)==0xea000000) { |
219 | return (char *)ptr+((*ptr<<8)>>6)+8; // follow jump |
220 | } |
221 | return ptr; |
222 | } |
223 | |
224 | static int verify_dirty(const u_int *ptr) |
225 | { |
226 | #ifndef HAVE_ARMV7 |
227 | u_int offset; |
228 | // get from literal pool |
229 | assert((*ptr&0xFFFF0000)==0xe59f0000); |
230 | offset=*ptr&0xfff; |
231 | u_int source=*(u_int*)((void *)ptr+offset+8); |
232 | ptr++; |
233 | assert((*ptr&0xFFFF0000)==0xe59f0000); |
234 | offset=*ptr&0xfff; |
235 | u_int copy=*(u_int*)((void *)ptr+offset+8); |
236 | ptr++; |
237 | assert((*ptr&0xFFFF0000)==0xe59f0000); |
238 | offset=*ptr&0xfff; |
239 | u_int len=*(u_int*)((void *)ptr+offset+8); |
240 | ptr++; |
241 | ptr++; |
242 | #else |
243 | // ARMv7 movw/movt |
244 | assert((*ptr&0xFFF00000)==0xe3000000); |
245 | u_int source=(ptr[0]&0xFFF)+((ptr[0]>>4)&0xF000)+((ptr[2]<<16)&0xFFF0000)+((ptr[2]<<12)&0xF0000000); |
246 | u_int copy=(ptr[1]&0xFFF)+((ptr[1]>>4)&0xF000)+((ptr[3]<<16)&0xFFF0000)+((ptr[3]<<12)&0xF0000000); |
247 | u_int len=(ptr[4]&0xFFF)+((ptr[4]>>4)&0xF000); |
248 | ptr+=6; |
249 | #endif |
250 | if((*ptr&0xFF000000)!=0xeb000000) ptr++; |
251 | assert((*ptr&0xFF000000)==0xeb000000); // bl instruction |
252 | //printf("verify_dirty: %x %x %x\n",source,copy,len); |
253 | return !memcmp((void *)source,(void *)copy,len); |
254 | } |
255 | |
256 | // This doesn't necessarily find all clean entry points, just |
257 | // guarantees that it's not dirty |
258 | static int isclean(void *addr) |
259 | { |
260 | #ifndef HAVE_ARMV7 |
261 | u_int *ptr=((u_int *)addr)+4; |
262 | #else |
263 | u_int *ptr=((u_int *)addr)+6; |
264 | #endif |
265 | if((*ptr&0xFF000000)!=0xeb000000) ptr++; |
266 | if((*ptr&0xFF000000)!=0xeb000000) return 1; // bl instruction |
267 | if((int)ptr+((*ptr<<8)>>6)+8==(int)verify_code) return 0; |
268 | if((int)ptr+((*ptr<<8)>>6)+8==(int)verify_code_ds) return 0; |
269 | return 1; |
270 | } |
271 | |
272 | // get source that block at addr was compiled from (host pointers) |
273 | static void get_bounds(void *addr, u_char **start, u_char **end) |
274 | { |
275 | u_int *ptr = addr; |
276 | #ifndef HAVE_ARMV7 |
277 | u_int offset; |
278 | // get from literal pool |
279 | assert((*ptr&0xFFFF0000)==0xe59f0000); |
280 | offset=*ptr&0xfff; |
281 | u_int source=*(u_int*)((void *)ptr+offset+8); |
282 | ptr++; |
283 | //assert((*ptr&0xFFFF0000)==0xe59f0000); |
284 | //offset=*ptr&0xfff; |
285 | //u_int copy=*(u_int*)((void *)ptr+offset+8); |
286 | ptr++; |
287 | assert((*ptr&0xFFFF0000)==0xe59f0000); |
288 | offset=*ptr&0xfff; |
289 | u_int len=*(u_int*)((void *)ptr+offset+8); |
290 | ptr++; |
291 | ptr++; |
292 | #else |
293 | // ARMv7 movw/movt |
294 | assert((*ptr&0xFFF00000)==0xe3000000); |
295 | u_int source=(ptr[0]&0xFFF)+((ptr[0]>>4)&0xF000)+((ptr[2]<<16)&0xFFF0000)+((ptr[2]<<12)&0xF0000000); |
296 | //u_int copy=(ptr[1]&0xFFF)+((ptr[1]>>4)&0xF000)+((ptr[3]<<16)&0xFFF0000)+((ptr[3]<<12)&0xF0000000); |
297 | u_int len=(ptr[4]&0xFFF)+((ptr[4]>>4)&0xF000); |
298 | ptr+=6; |
299 | #endif |
300 | if((*ptr&0xFF000000)!=0xeb000000) ptr++; |
301 | assert((*ptr&0xFF000000)==0xeb000000); // bl instruction |
302 | *start=(u_char *)source; |
303 | *end=(u_char *)source+len; |
304 | } |
305 | |
306 | // Allocate a specific ARM register. |
307 | static void alloc_arm_reg(struct regstat *cur,int i,signed char reg,int hr) |
308 | { |
309 | int n; |
310 | int dirty=0; |
311 | |
312 | // see if it's already allocated (and dealloc it) |
313 | for(n=0;n<HOST_REGS;n++) |
314 | { |
315 | if(n!=EXCLUDE_REG&&cur->regmap[n]==reg) { |
316 | dirty=(cur->dirty>>n)&1; |
317 | cur->regmap[n]=-1; |
318 | } |
319 | } |
320 | |
321 | cur->regmap[hr]=reg; |
322 | cur->dirty&=~(1<<hr); |
323 | cur->dirty|=dirty<<hr; |
324 | cur->isconst&=~(1<<hr); |
325 | } |
326 | |
327 | // Alloc cycle count into dedicated register |
328 | static void alloc_cc(struct regstat *cur,int i) |
329 | { |
330 | alloc_arm_reg(cur,i,CCREG,HOST_CCREG); |
331 | } |
332 | |
333 | /* Assembler */ |
334 | |
335 | static unused char regname[16][4] = { |
336 | "r0", |
337 | "r1", |
338 | "r2", |
339 | "r3", |
340 | "r4", |
341 | "r5", |
342 | "r6", |
343 | "r7", |
344 | "r8", |
345 | "r9", |
346 | "r10", |
347 | "fp", |
348 | "r12", |
349 | "sp", |
350 | "lr", |
351 | "pc"}; |
352 | |
353 | static void output_w32(u_int word) |
354 | { |
355 | *((u_int *)out)=word; |
356 | out+=4; |
357 | } |
358 | |
359 | static u_int rd_rn_rm(u_int rd, u_int rn, u_int rm) |
360 | { |
361 | assert(rd<16); |
362 | assert(rn<16); |
363 | assert(rm<16); |
364 | return((rn<<16)|(rd<<12)|rm); |
365 | } |
366 | |
367 | static u_int rd_rn_imm_shift(u_int rd, u_int rn, u_int imm, u_int shift) |
368 | { |
369 | assert(rd<16); |
370 | assert(rn<16); |
371 | assert(imm<256); |
372 | assert((shift&1)==0); |
373 | return((rn<<16)|(rd<<12)|(((32-shift)&30)<<7)|imm); |
374 | } |
375 | |
376 | static u_int genimm(u_int imm,u_int *encoded) |
377 | { |
378 | *encoded=0; |
379 | if(imm==0) return 1; |
380 | int i=32; |
381 | while(i>0) |
382 | { |
383 | if(imm<256) { |
384 | *encoded=((i&30)<<7)|imm; |
385 | return 1; |
386 | } |
387 | imm=(imm>>2)|(imm<<30);i-=2; |
388 | } |
389 | return 0; |
390 | } |
391 | |
392 | static void genimm_checked(u_int imm,u_int *encoded) |
393 | { |
394 | u_int ret=genimm(imm,encoded); |
395 | assert(ret); |
396 | (void)ret; |
397 | } |
398 | |
399 | static u_int genjmp(u_int addr) |
400 | { |
401 | if (addr < 3) return 0; // a branch that will be patched later |
402 | int offset = addr-(int)out-8; |
403 | if (offset < -33554432 || offset >= 33554432) { |
404 | SysPrintf("genjmp: out of range: %08x\n", offset); |
405 | abort(); |
406 | return 0; |
407 | } |
408 | return ((u_int)offset>>2)&0xffffff; |
409 | } |
410 | |
411 | static unused void emit_breakpoint(void) |
412 | { |
413 | assem_debug("bkpt #0\n"); |
414 | //output_w32(0xe1200070); |
415 | output_w32(0xe7f001f0); |
416 | } |
417 | |
418 | static void emit_mov(int rs,int rt) |
419 | { |
420 | assem_debug("mov %s,%s\n",regname[rt],regname[rs]); |
421 | output_w32(0xe1a00000|rd_rn_rm(rt,0,rs)); |
422 | } |
423 | |
424 | static void emit_movs(int rs,int rt) |
425 | { |
426 | assem_debug("movs %s,%s\n",regname[rt],regname[rs]); |
427 | output_w32(0xe1b00000|rd_rn_rm(rt,0,rs)); |
428 | } |
429 | |
430 | static void emit_add(int rs1,int rs2,int rt) |
431 | { |
432 | assem_debug("add %s,%s,%s\n",regname[rt],regname[rs1],regname[rs2]); |
433 | output_w32(0xe0800000|rd_rn_rm(rt,rs1,rs2)); |
434 | } |
435 | |
436 | static void emit_adds(int rs1,int rs2,int rt) |
437 | { |
438 | assem_debug("adds %s,%s,%s\n",regname[rt],regname[rs1],regname[rs2]); |
439 | output_w32(0xe0900000|rd_rn_rm(rt,rs1,rs2)); |
440 | } |
441 | #define emit_adds_ptr emit_adds |
442 | |
443 | static void emit_adcs(int rs1,int rs2,int rt) |
444 | { |
445 | assem_debug("adcs %s,%s,%s\n",regname[rt],regname[rs1],regname[rs2]); |
446 | output_w32(0xe0b00000|rd_rn_rm(rt,rs1,rs2)); |
447 | } |
448 | |
449 | static void emit_neg(int rs, int rt) |
450 | { |
451 | assem_debug("rsb %s,%s,#0\n",regname[rt],regname[rs]); |
452 | output_w32(0xe2600000|rd_rn_rm(rt,rs,0)); |
453 | } |
454 | |
455 | static void emit_sub(int rs1,int rs2,int rt) |
456 | { |
457 | assem_debug("sub %s,%s,%s\n",regname[rt],regname[rs1],regname[rs2]); |
458 | output_w32(0xe0400000|rd_rn_rm(rt,rs1,rs2)); |
459 | } |
460 | |
461 | static void emit_zeroreg(int rt) |
462 | { |
463 | assem_debug("mov %s,#0\n",regname[rt]); |
464 | output_w32(0xe3a00000|rd_rn_rm(rt,0,0)); |
465 | } |
466 | |
467 | static void emit_loadlp(u_int imm,u_int rt) |
468 | { |
469 | add_literal((int)out,imm); |
470 | assem_debug("ldr %s,pc+? [=%x]\n",regname[rt],imm); |
471 | output_w32(0xe5900000|rd_rn_rm(rt,15,0)); |
472 | } |
473 | |
2cb5735e |
474 | #ifdef HAVE_ARMV7 |
630b122b |
475 | static void emit_movw(u_int imm,u_int rt) |
476 | { |
477 | assert(imm<65536); |
478 | assem_debug("movw %s,#%d (0x%x)\n",regname[rt],imm,imm); |
479 | output_w32(0xe3000000|rd_rn_rm(rt,0,0)|(imm&0xfff)|((imm<<4)&0xf0000)); |
480 | } |
481 | |
482 | static void emit_movt(u_int imm,u_int rt) |
483 | { |
484 | assem_debug("movt %s,#%d (0x%x)\n",regname[rt],imm&0xffff0000,imm&0xffff0000); |
485 | output_w32(0xe3400000|rd_rn_rm(rt,0,0)|((imm>>16)&0xfff)|((imm>>12)&0xf0000)); |
486 | } |
2cb5735e |
487 | #endif |
630b122b |
488 | |
489 | static void emit_movimm(u_int imm,u_int rt) |
490 | { |
491 | u_int armval; |
492 | if(genimm(imm,&armval)) { |
493 | assem_debug("mov %s,#%d\n",regname[rt],imm); |
494 | output_w32(0xe3a00000|rd_rn_rm(rt,0,0)|armval); |
495 | }else if(genimm(~imm,&armval)) { |
496 | assem_debug("mvn %s,#%d\n",regname[rt],imm); |
497 | output_w32(0xe3e00000|rd_rn_rm(rt,0,0)|armval); |
498 | }else if(imm<65536) { |
499 | #ifndef HAVE_ARMV7 |
500 | assem_debug("mov %s,#%d\n",regname[rt],imm&0xFF00); |
501 | output_w32(0xe3a00000|rd_rn_imm_shift(rt,0,imm>>8,8)); |
502 | assem_debug("add %s,%s,#%d\n",regname[rt],regname[rt],imm&0xFF); |
503 | output_w32(0xe2800000|rd_rn_imm_shift(rt,rt,imm&0xff,0)); |
504 | #else |
505 | emit_movw(imm,rt); |
506 | #endif |
507 | }else{ |
508 | #ifndef HAVE_ARMV7 |
509 | emit_loadlp(imm,rt); |
510 | #else |
511 | emit_movw(imm&0x0000FFFF,rt); |
512 | emit_movt(imm&0xFFFF0000,rt); |
513 | #endif |
514 | } |
515 | } |
516 | |
517 | static void emit_pcreladdr(u_int rt) |
518 | { |
519 | assem_debug("add %s,pc,#?\n",regname[rt]); |
520 | output_w32(0xe2800000|rd_rn_rm(rt,15,0)); |
521 | } |
522 | |
523 | static void emit_loadreg(int r, int hr) |
524 | { |
e912c27d |
525 | assert(hr != EXCLUDE_REG); |
526 | if (r == 0) |
630b122b |
527 | emit_zeroreg(hr); |
528 | else { |
2cb5735e |
529 | void *addr; |
630b122b |
530 | switch (r) { |
531 | //case HIREG: addr = &hi; break; |
532 | //case LOREG: addr = &lo; break; |
2cb5735e |
533 | case CCREG: addr = &cycle_count; break; |
534 | case CSREG: addr = &Status; break; |
535 | case INVCP: addr = &invc_ptr; break; |
536 | case ROREG: addr = &ram_offset; break; |
537 | default: |
538 | assert(r < 34); |
539 | addr = &psxRegs.GPR.r[r]; |
540 | break; |
630b122b |
541 | } |
2cb5735e |
542 | u_int offset = (u_char *)addr - (u_char *)&dynarec_local; |
630b122b |
543 | assert(offset<4096); |
b15d122e |
544 | assem_debug("ldr %s,fp+%d # r%d\n",regname[hr],offset,r); |
630b122b |
545 | output_w32(0xe5900000|rd_rn_rm(hr,FP,0)|offset); |
546 | } |
547 | } |
548 | |
549 | static void emit_storereg(int r, int hr) |
550 | { |
e912c27d |
551 | assert(hr != EXCLUDE_REG); |
630b122b |
552 | int addr = (int)&psxRegs.GPR.r[r]; |
553 | switch (r) { |
554 | //case HIREG: addr = &hi; break; |
555 | //case LOREG: addr = &lo; break; |
556 | case CCREG: addr = (int)&cycle_count; break; |
557 | default: assert(r < 34); break; |
558 | } |
559 | u_int offset = addr-(u_int)&dynarec_local; |
560 | assert(offset<4096); |
b15d122e |
561 | assem_debug("str %s,fp+%d # r%d\n",regname[hr],offset,r); |
630b122b |
562 | output_w32(0xe5800000|rd_rn_rm(hr,FP,0)|offset); |
563 | } |
564 | |
565 | static void emit_test(int rs, int rt) |
566 | { |
567 | assem_debug("tst %s,%s\n",regname[rs],regname[rt]); |
568 | output_w32(0xe1100000|rd_rn_rm(0,rs,rt)); |
569 | } |
570 | |
571 | static void emit_testimm(int rs,int imm) |
572 | { |
573 | u_int armval; |
574 | assem_debug("tst %s,#%d\n",regname[rs],imm); |
575 | genimm_checked(imm,&armval); |
576 | output_w32(0xe3100000|rd_rn_rm(0,rs,0)|armval); |
577 | } |
578 | |
579 | static void emit_testeqimm(int rs,int imm) |
580 | { |
581 | u_int armval; |
582 | assem_debug("tsteq %s,$%d\n",regname[rs],imm); |
583 | genimm_checked(imm,&armval); |
584 | output_w32(0x03100000|rd_rn_rm(0,rs,0)|armval); |
585 | } |
586 | |
587 | static void emit_not(int rs,int rt) |
588 | { |
589 | assem_debug("mvn %s,%s\n",regname[rt],regname[rs]); |
590 | output_w32(0xe1e00000|rd_rn_rm(rt,0,rs)); |
591 | } |
592 | |
593 | static void emit_and(u_int rs1,u_int rs2,u_int rt) |
594 | { |
595 | assem_debug("and %s,%s,%s\n",regname[rt],regname[rs1],regname[rs2]); |
596 | output_w32(0xe0000000|rd_rn_rm(rt,rs1,rs2)); |
597 | } |
598 | |
599 | static void emit_or(u_int rs1,u_int rs2,u_int rt) |
600 | { |
601 | assem_debug("orr %s,%s,%s\n",regname[rt],regname[rs1],regname[rs2]); |
602 | output_w32(0xe1800000|rd_rn_rm(rt,rs1,rs2)); |
603 | } |
604 | |
605 | static void emit_orrshl_imm(u_int rs,u_int imm,u_int rt) |
606 | { |
607 | assert(rs<16); |
608 | assert(rt<16); |
609 | assert(imm<32); |
610 | assem_debug("orr %s,%s,%s,lsl #%d\n",regname[rt],regname[rt],regname[rs],imm); |
611 | output_w32(0xe1800000|rd_rn_rm(rt,rt,rs)|(imm<<7)); |
612 | } |
613 | |
614 | static void emit_orrshr_imm(u_int rs,u_int imm,u_int rt) |
615 | { |
616 | assert(rs<16); |
617 | assert(rt<16); |
618 | assert(imm<32); |
619 | assem_debug("orr %s,%s,%s,lsr #%d\n",regname[rt],regname[rt],regname[rs],imm); |
620 | output_w32(0xe1800020|rd_rn_rm(rt,rt,rs)|(imm<<7)); |
621 | } |
622 | |
623 | static void emit_xor(u_int rs1,u_int rs2,u_int rt) |
624 | { |
625 | assem_debug("eor %s,%s,%s\n",regname[rt],regname[rs1],regname[rs2]); |
626 | output_w32(0xe0200000|rd_rn_rm(rt,rs1,rs2)); |
627 | } |
628 | |
629 | static void emit_xorsar_imm(u_int rs1,u_int rs2,u_int imm,u_int rt) |
630 | { |
631 | assem_debug("eor %s,%s,%s,asr #%d\n",regname[rt],regname[rs1],regname[rs2],imm); |
632 | output_w32(0xe0200040|rd_rn_rm(rt,rs1,rs2)|(imm<<7)); |
633 | } |
634 | |
635 | static void emit_addimm(u_int rs,int imm,u_int rt) |
636 | { |
637 | assert(rs<16); |
638 | assert(rt<16); |
639 | if(imm!=0) { |
640 | u_int armval; |
641 | if(genimm(imm,&armval)) { |
642 | assem_debug("add %s,%s,#%d\n",regname[rt],regname[rs],imm); |
643 | output_w32(0xe2800000|rd_rn_rm(rt,rs,0)|armval); |
644 | }else if(genimm(-imm,&armval)) { |
645 | assem_debug("sub %s,%s,#%d\n",regname[rt],regname[rs],-imm); |
646 | output_w32(0xe2400000|rd_rn_rm(rt,rs,0)|armval); |
647 | #ifdef HAVE_ARMV7 |
648 | }else if(rt!=rs&&(u_int)imm<65536) { |
649 | emit_movw(imm&0x0000ffff,rt); |
650 | emit_add(rs,rt,rt); |
651 | }else if(rt!=rs&&(u_int)-imm<65536) { |
652 | emit_movw(-imm&0x0000ffff,rt); |
653 | emit_sub(rs,rt,rt); |
654 | #endif |
655 | }else if((u_int)-imm<65536) { |
656 | assem_debug("sub %s,%s,#%d\n",regname[rt],regname[rs],(-imm)&0xFF00); |
657 | assem_debug("sub %s,%s,#%d\n",regname[rt],regname[rt],(-imm)&0xFF); |
658 | output_w32(0xe2400000|rd_rn_imm_shift(rt,rs,(-imm)>>8,8)); |
659 | output_w32(0xe2400000|rd_rn_imm_shift(rt,rt,(-imm)&0xff,0)); |
660 | }else { |
661 | do { |
662 | int shift = (ffs(imm) - 1) & ~1; |
663 | int imm8 = imm & (0xff << shift); |
664 | genimm_checked(imm8,&armval); |
665 | assem_debug("add %s,%s,#0x%x\n",regname[rt],regname[rs],imm8); |
666 | output_w32(0xe2800000|rd_rn_rm(rt,rs,0)|armval); |
667 | rs = rt; |
668 | imm &= ~imm8; |
669 | } |
670 | while (imm != 0); |
671 | } |
672 | } |
673 | else if(rs!=rt) emit_mov(rs,rt); |
674 | } |
675 | |
676 | static void emit_addimm_and_set_flags(int imm,int rt) |
677 | { |
678 | assert(imm>-65536&&imm<65536); |
679 | u_int armval; |
680 | if(genimm(imm,&armval)) { |
681 | assem_debug("adds %s,%s,#%d\n",regname[rt],regname[rt],imm); |
682 | output_w32(0xe2900000|rd_rn_rm(rt,rt,0)|armval); |
683 | }else if(genimm(-imm,&armval)) { |
684 | assem_debug("subs %s,%s,#%d\n",regname[rt],regname[rt],imm); |
685 | output_w32(0xe2500000|rd_rn_rm(rt,rt,0)|armval); |
686 | }else if(imm<0) { |
687 | assem_debug("sub %s,%s,#%d\n",regname[rt],regname[rt],(-imm)&0xFF00); |
688 | assem_debug("subs %s,%s,#%d\n",regname[rt],regname[rt],(-imm)&0xFF); |
689 | output_w32(0xe2400000|rd_rn_imm_shift(rt,rt,(-imm)>>8,8)); |
690 | output_w32(0xe2500000|rd_rn_imm_shift(rt,rt,(-imm)&0xff,0)); |
691 | }else{ |
692 | assem_debug("add %s,%s,#%d\n",regname[rt],regname[rt],imm&0xFF00); |
693 | assem_debug("adds %s,%s,#%d\n",regname[rt],regname[rt],imm&0xFF); |
694 | output_w32(0xe2800000|rd_rn_imm_shift(rt,rt,imm>>8,8)); |
695 | output_w32(0xe2900000|rd_rn_imm_shift(rt,rt,imm&0xff,0)); |
696 | } |
697 | } |
698 | |
699 | static void emit_addnop(u_int r) |
700 | { |
701 | assert(r<16); |
702 | assem_debug("add %s,%s,#0 (nop)\n",regname[r],regname[r]); |
703 | output_w32(0xe2800000|rd_rn_rm(r,r,0)); |
704 | } |
705 | |
706 | static void emit_andimm(int rs,int imm,int rt) |
707 | { |
708 | u_int armval; |
709 | if(imm==0) { |
710 | emit_zeroreg(rt); |
711 | }else if(genimm(imm,&armval)) { |
712 | assem_debug("and %s,%s,#%d\n",regname[rt],regname[rs],imm); |
713 | output_w32(0xe2000000|rd_rn_rm(rt,rs,0)|armval); |
714 | }else if(genimm(~imm,&armval)) { |
715 | assem_debug("bic %s,%s,#%d\n",regname[rt],regname[rs],imm); |
716 | output_w32(0xe3c00000|rd_rn_rm(rt,rs,0)|armval); |
717 | }else if(imm==65535) { |
718 | #ifndef HAVE_ARMV6 |
719 | assem_debug("bic %s,%s,#FF000000\n",regname[rt],regname[rs]); |
720 | output_w32(0xe3c00000|rd_rn_rm(rt,rs,0)|0x4FF); |
721 | assem_debug("bic %s,%s,#00FF0000\n",regname[rt],regname[rt]); |
722 | output_w32(0xe3c00000|rd_rn_rm(rt,rt,0)|0x8FF); |
723 | #else |
724 | assem_debug("uxth %s,%s\n",regname[rt],regname[rs]); |
725 | output_w32(0xe6ff0070|rd_rn_rm(rt,0,rs)); |
726 | #endif |
727 | }else{ |
728 | assert(imm>0&&imm<65535); |
729 | #ifndef HAVE_ARMV7 |
730 | assem_debug("mov r14,#%d\n",imm&0xFF00); |
731 | output_w32(0xe3a00000|rd_rn_imm_shift(HOST_TEMPREG,0,imm>>8,8)); |
732 | assem_debug("add r14,r14,#%d\n",imm&0xFF); |
733 | output_w32(0xe2800000|rd_rn_imm_shift(HOST_TEMPREG,HOST_TEMPREG,imm&0xff,0)); |
734 | #else |
735 | emit_movw(imm,HOST_TEMPREG); |
736 | #endif |
737 | assem_debug("and %s,%s,r14\n",regname[rt],regname[rs]); |
738 | output_w32(0xe0000000|rd_rn_rm(rt,rs,HOST_TEMPREG)); |
739 | } |
740 | } |
741 | |
742 | static void emit_orimm(int rs,int imm,int rt) |
743 | { |
744 | u_int armval; |
745 | if(imm==0) { |
746 | if(rs!=rt) emit_mov(rs,rt); |
747 | }else if(genimm(imm,&armval)) { |
748 | assem_debug("orr %s,%s,#%d\n",regname[rt],regname[rs],imm); |
749 | output_w32(0xe3800000|rd_rn_rm(rt,rs,0)|armval); |
750 | }else{ |
751 | assert(imm>0&&imm<65536); |
752 | assem_debug("orr %s,%s,#%d\n",regname[rt],regname[rs],imm&0xFF00); |
753 | assem_debug("orr %s,%s,#%d\n",regname[rt],regname[rs],imm&0xFF); |
754 | output_w32(0xe3800000|rd_rn_imm_shift(rt,rs,imm>>8,8)); |
755 | output_w32(0xe3800000|rd_rn_imm_shift(rt,rt,imm&0xff,0)); |
756 | } |
757 | } |
758 | |
759 | static void emit_xorimm(int rs,int imm,int rt) |
760 | { |
761 | u_int armval; |
762 | if(imm==0) { |
763 | if(rs!=rt) emit_mov(rs,rt); |
764 | }else if(genimm(imm,&armval)) { |
765 | assem_debug("eor %s,%s,#%d\n",regname[rt],regname[rs],imm); |
766 | output_w32(0xe2200000|rd_rn_rm(rt,rs,0)|armval); |
767 | }else{ |
768 | assert(imm>0&&imm<65536); |
769 | assem_debug("eor %s,%s,#%d\n",regname[rt],regname[rs],imm&0xFF00); |
770 | assem_debug("eor %s,%s,#%d\n",regname[rt],regname[rs],imm&0xFF); |
771 | output_w32(0xe2200000|rd_rn_imm_shift(rt,rs,imm>>8,8)); |
772 | output_w32(0xe2200000|rd_rn_imm_shift(rt,rt,imm&0xff,0)); |
773 | } |
774 | } |
775 | |
776 | static void emit_shlimm(int rs,u_int imm,int rt) |
777 | { |
778 | assert(imm>0); |
779 | assert(imm<32); |
780 | //if(imm==1) ... |
781 | assem_debug("lsl %s,%s,#%d\n",regname[rt],regname[rs],imm); |
782 | output_w32(0xe1a00000|rd_rn_rm(rt,0,rs)|(imm<<7)); |
783 | } |
784 | |
785 | static void emit_lsls_imm(int rs,int imm,int rt) |
786 | { |
787 | assert(imm>0); |
788 | assert(imm<32); |
789 | assem_debug("lsls %s,%s,#%d\n",regname[rt],regname[rs],imm); |
790 | output_w32(0xe1b00000|rd_rn_rm(rt,0,rs)|(imm<<7)); |
791 | } |
792 | |
793 | static unused void emit_lslpls_imm(int rs,int imm,int rt) |
794 | { |
795 | assert(imm>0); |
796 | assert(imm<32); |
797 | assem_debug("lslpls %s,%s,#%d\n",regname[rt],regname[rs],imm); |
798 | output_w32(0x51b00000|rd_rn_rm(rt,0,rs)|(imm<<7)); |
799 | } |
800 | |
801 | static void emit_shrimm(int rs,u_int imm,int rt) |
802 | { |
803 | assert(imm>0); |
804 | assert(imm<32); |
805 | assem_debug("lsr %s,%s,#%d\n",regname[rt],regname[rs],imm); |
806 | output_w32(0xe1a00000|rd_rn_rm(rt,0,rs)|0x20|(imm<<7)); |
807 | } |
808 | |
809 | static void emit_sarimm(int rs,u_int imm,int rt) |
810 | { |
811 | assert(imm>0); |
812 | assert(imm<32); |
813 | assem_debug("asr %s,%s,#%d\n",regname[rt],regname[rs],imm); |
814 | output_w32(0xe1a00000|rd_rn_rm(rt,0,rs)|0x40|(imm<<7)); |
815 | } |
816 | |
817 | static void emit_rorimm(int rs,u_int imm,int rt) |
818 | { |
819 | assert(imm>0); |
820 | assert(imm<32); |
821 | assem_debug("ror %s,%s,#%d\n",regname[rt],regname[rs],imm); |
822 | output_w32(0xe1a00000|rd_rn_rm(rt,0,rs)|0x60|(imm<<7)); |
823 | } |
824 | |
825 | static void emit_signextend16(int rs,int rt) |
826 | { |
827 | #ifndef HAVE_ARMV6 |
828 | emit_shlimm(rs,16,rt); |
829 | emit_sarimm(rt,16,rt); |
830 | #else |
831 | assem_debug("sxth %s,%s\n",regname[rt],regname[rs]); |
832 | output_w32(0xe6bf0070|rd_rn_rm(rt,0,rs)); |
833 | #endif |
834 | } |
835 | |
836 | static void emit_signextend8(int rs,int rt) |
837 | { |
838 | #ifndef HAVE_ARMV6 |
839 | emit_shlimm(rs,24,rt); |
840 | emit_sarimm(rt,24,rt); |
841 | #else |
842 | assem_debug("sxtb %s,%s\n",regname[rt],regname[rs]); |
843 | output_w32(0xe6af0070|rd_rn_rm(rt,0,rs)); |
844 | #endif |
845 | } |
846 | |
847 | static void emit_shl(u_int rs,u_int shift,u_int rt) |
848 | { |
849 | assert(rs<16); |
850 | assert(rt<16); |
851 | assert(shift<16); |
852 | //if(imm==1) ... |
853 | assem_debug("lsl %s,%s,%s\n",regname[rt],regname[rs],regname[shift]); |
854 | output_w32(0xe1a00000|rd_rn_rm(rt,0,rs)|0x10|(shift<<8)); |
855 | } |
856 | |
857 | static void emit_shr(u_int rs,u_int shift,u_int rt) |
858 | { |
859 | assert(rs<16); |
860 | assert(rt<16); |
861 | assert(shift<16); |
862 | assem_debug("lsr %s,%s,%s\n",regname[rt],regname[rs],regname[shift]); |
863 | output_w32(0xe1a00000|rd_rn_rm(rt,0,rs)|0x30|(shift<<8)); |
864 | } |
865 | |
866 | static void emit_sar(u_int rs,u_int shift,u_int rt) |
867 | { |
868 | assert(rs<16); |
869 | assert(rt<16); |
870 | assert(shift<16); |
871 | assem_debug("asr %s,%s,%s\n",regname[rt],regname[rs],regname[shift]); |
872 | output_w32(0xe1a00000|rd_rn_rm(rt,0,rs)|0x50|(shift<<8)); |
873 | } |
874 | |
875 | static unused void emit_orrshl(u_int rs,u_int shift,u_int rt) |
876 | { |
877 | assert(rs<16); |
878 | assert(rt<16); |
879 | assert(shift<16); |
880 | assem_debug("orr %s,%s,%s,lsl %s\n",regname[rt],regname[rt],regname[rs],regname[shift]); |
881 | output_w32(0xe1800000|rd_rn_rm(rt,rt,rs)|0x10|(shift<<8)); |
882 | } |
883 | |
884 | static unused void emit_orrshr(u_int rs,u_int shift,u_int rt) |
885 | { |
886 | assert(rs<16); |
887 | assert(rt<16); |
888 | assert(shift<16); |
889 | assem_debug("orr %s,%s,%s,lsr %s\n",regname[rt],regname[rt],regname[rs],regname[shift]); |
890 | output_w32(0xe1800000|rd_rn_rm(rt,rt,rs)|0x30|(shift<<8)); |
891 | } |
892 | |
893 | static void emit_cmpimm(int rs,int imm) |
894 | { |
895 | u_int armval; |
896 | if(genimm(imm,&armval)) { |
897 | assem_debug("cmp %s,#%d\n",regname[rs],imm); |
898 | output_w32(0xe3500000|rd_rn_rm(0,rs,0)|armval); |
899 | }else if(genimm(-imm,&armval)) { |
900 | assem_debug("cmn %s,#%d\n",regname[rs],imm); |
901 | output_w32(0xe3700000|rd_rn_rm(0,rs,0)|armval); |
902 | }else if(imm>0) { |
903 | assert(imm<65536); |
904 | emit_movimm(imm,HOST_TEMPREG); |
905 | assem_debug("cmp %s,r14\n",regname[rs]); |
906 | output_w32(0xe1500000|rd_rn_rm(0,rs,HOST_TEMPREG)); |
907 | }else{ |
908 | assert(imm>-65536); |
909 | emit_movimm(-imm,HOST_TEMPREG); |
910 | assem_debug("cmn %s,r14\n",regname[rs]); |
911 | output_w32(0xe1700000|rd_rn_rm(0,rs,HOST_TEMPREG)); |
912 | } |
913 | } |
914 | |
915 | static void emit_cmovne_imm(int imm,int rt) |
916 | { |
917 | assem_debug("movne %s,#%d\n",regname[rt],imm); |
918 | u_int armval; |
919 | genimm_checked(imm,&armval); |
920 | output_w32(0x13a00000|rd_rn_rm(rt,0,0)|armval); |
921 | } |
922 | |
923 | static void emit_cmovl_imm(int imm,int rt) |
924 | { |
925 | assem_debug("movlt %s,#%d\n",regname[rt],imm); |
926 | u_int armval; |
927 | genimm_checked(imm,&armval); |
928 | output_w32(0xb3a00000|rd_rn_rm(rt,0,0)|armval); |
929 | } |
930 | |
931 | static void emit_cmovb_imm(int imm,int rt) |
932 | { |
933 | assem_debug("movcc %s,#%d\n",regname[rt],imm); |
934 | u_int armval; |
935 | genimm_checked(imm,&armval); |
936 | output_w32(0x33a00000|rd_rn_rm(rt,0,0)|armval); |
937 | } |
938 | |
939 | static void emit_cmovae_imm(int imm,int rt) |
940 | { |
941 | assem_debug("movcs %s,#%d\n",regname[rt],imm); |
942 | u_int armval; |
943 | genimm_checked(imm,&armval); |
944 | output_w32(0x23a00000|rd_rn_rm(rt,0,0)|armval); |
945 | } |
946 | |
947 | static void emit_cmovs_imm(int imm,int rt) |
948 | { |
949 | assem_debug("movmi %s,#%d\n",regname[rt],imm); |
950 | u_int armval; |
951 | genimm_checked(imm,&armval); |
952 | output_w32(0x43a00000|rd_rn_rm(rt,0,0)|armval); |
953 | } |
954 | |
955 | static void emit_cmovne_reg(int rs,int rt) |
956 | { |
957 | assem_debug("movne %s,%s\n",regname[rt],regname[rs]); |
958 | output_w32(0x11a00000|rd_rn_rm(rt,0,rs)); |
959 | } |
960 | |
961 | static void emit_cmovl_reg(int rs,int rt) |
962 | { |
963 | assem_debug("movlt %s,%s\n",regname[rt],regname[rs]); |
964 | output_w32(0xb1a00000|rd_rn_rm(rt,0,rs)); |
965 | } |
966 | |
967 | static void emit_cmovb_reg(int rs,int rt) |
968 | { |
969 | assem_debug("movcc %s,%s\n",regname[rt],regname[rs]); |
970 | output_w32(0x31a00000|rd_rn_rm(rt,0,rs)); |
971 | } |
972 | |
973 | static void emit_cmovs_reg(int rs,int rt) |
974 | { |
975 | assem_debug("movmi %s,%s\n",regname[rt],regname[rs]); |
976 | output_w32(0x41a00000|rd_rn_rm(rt,0,rs)); |
977 | } |
978 | |
979 | static void emit_slti32(int rs,int imm,int rt) |
980 | { |
981 | if(rs!=rt) emit_zeroreg(rt); |
982 | emit_cmpimm(rs,imm); |
983 | if(rs==rt) emit_movimm(0,rt); |
984 | emit_cmovl_imm(1,rt); |
985 | } |
986 | |
987 | static void emit_sltiu32(int rs,int imm,int rt) |
988 | { |
989 | if(rs!=rt) emit_zeroreg(rt); |
990 | emit_cmpimm(rs,imm); |
991 | if(rs==rt) emit_movimm(0,rt); |
992 | emit_cmovb_imm(1,rt); |
993 | } |
994 | |
995 | static void emit_cmp(int rs,int rt) |
996 | { |
997 | assem_debug("cmp %s,%s\n",regname[rs],regname[rt]); |
998 | output_w32(0xe1500000|rd_rn_rm(0,rs,rt)); |
999 | } |
1000 | |
1001 | static void emit_set_gz32(int rs, int rt) |
1002 | { |
1003 | //assem_debug("set_gz32\n"); |
1004 | emit_cmpimm(rs,1); |
1005 | emit_movimm(1,rt); |
1006 | emit_cmovl_imm(0,rt); |
1007 | } |
1008 | |
1009 | static void emit_set_nz32(int rs, int rt) |
1010 | { |
1011 | //assem_debug("set_nz32\n"); |
1012 | if(rs!=rt) emit_movs(rs,rt); |
1013 | else emit_test(rs,rs); |
1014 | emit_cmovne_imm(1,rt); |
1015 | } |
1016 | |
1017 | static void emit_set_if_less32(int rs1, int rs2, int rt) |
1018 | { |
1019 | //assem_debug("set if less (%%%s,%%%s),%%%s\n",regname[rs1],regname[rs2],regname[rt]); |
1020 | if(rs1!=rt&&rs2!=rt) emit_zeroreg(rt); |
1021 | emit_cmp(rs1,rs2); |
1022 | if(rs1==rt||rs2==rt) emit_movimm(0,rt); |
1023 | emit_cmovl_imm(1,rt); |
1024 | } |
1025 | |
1026 | static void emit_set_if_carry32(int rs1, int rs2, int rt) |
1027 | { |
1028 | //assem_debug("set if carry (%%%s,%%%s),%%%s\n",regname[rs1],regname[rs2],regname[rt]); |
1029 | if(rs1!=rt&&rs2!=rt) emit_zeroreg(rt); |
1030 | emit_cmp(rs1,rs2); |
1031 | if(rs1==rt||rs2==rt) emit_movimm(0,rt); |
1032 | emit_cmovb_imm(1,rt); |
1033 | } |
1034 | |
1035 | static int can_jump_or_call(const void *a) |
1036 | { |
1037 | intptr_t offset = (u_char *)a - out - 8; |
1038 | return (-33554432 <= offset && offset < 33554432); |
1039 | } |
1040 | |
1041 | static void emit_call(const void *a_) |
1042 | { |
1043 | int a = (int)a_; |
1044 | assem_debug("bl %x (%x+%x)%s\n",a,(int)out,a-(int)out-8,func_name(a_)); |
1045 | u_int offset=genjmp(a); |
1046 | output_w32(0xeb000000|offset); |
1047 | } |
1048 | |
1049 | static void emit_jmp(const void *a_) |
1050 | { |
1051 | int a = (int)a_; |
1052 | assem_debug("b %x (%x+%x)%s\n",a,(int)out,a-(int)out-8,func_name(a_)); |
1053 | u_int offset=genjmp(a); |
1054 | output_w32(0xea000000|offset); |
1055 | } |
1056 | |
1057 | static void emit_jne(const void *a_) |
1058 | { |
1059 | int a = (int)a_; |
1060 | assem_debug("bne %x\n",a); |
1061 | u_int offset=genjmp(a); |
1062 | output_w32(0x1a000000|offset); |
1063 | } |
1064 | |
1065 | static void emit_jeq(const void *a_) |
1066 | { |
1067 | int a = (int)a_; |
1068 | assem_debug("beq %x\n",a); |
1069 | u_int offset=genjmp(a); |
1070 | output_w32(0x0a000000|offset); |
1071 | } |
1072 | |
1073 | static void emit_js(const void *a_) |
1074 | { |
1075 | int a = (int)a_; |
1076 | assem_debug("bmi %x\n",a); |
1077 | u_int offset=genjmp(a); |
1078 | output_w32(0x4a000000|offset); |
1079 | } |
1080 | |
1081 | static void emit_jns(const void *a_) |
1082 | { |
1083 | int a = (int)a_; |
1084 | assem_debug("bpl %x\n",a); |
1085 | u_int offset=genjmp(a); |
1086 | output_w32(0x5a000000|offset); |
1087 | } |
1088 | |
1089 | static void emit_jl(const void *a_) |
1090 | { |
1091 | int a = (int)a_; |
1092 | assem_debug("blt %x\n",a); |
1093 | u_int offset=genjmp(a); |
1094 | output_w32(0xba000000|offset); |
1095 | } |
1096 | |
1097 | static void emit_jge(const void *a_) |
1098 | { |
1099 | int a = (int)a_; |
1100 | assem_debug("bge %x\n",a); |
1101 | u_int offset=genjmp(a); |
1102 | output_w32(0xaa000000|offset); |
1103 | } |
1104 | |
1105 | static void emit_jno(const void *a_) |
1106 | { |
1107 | int a = (int)a_; |
1108 | assem_debug("bvc %x\n",a); |
1109 | u_int offset=genjmp(a); |
1110 | output_w32(0x7a000000|offset); |
1111 | } |
1112 | |
1113 | static void emit_jc(const void *a_) |
1114 | { |
1115 | int a = (int)a_; |
1116 | assem_debug("bcs %x\n",a); |
1117 | u_int offset=genjmp(a); |
1118 | output_w32(0x2a000000|offset); |
1119 | } |
1120 | |
1121 | static void emit_jcc(const void *a_) |
1122 | { |
1123 | int a = (int)a_; |
1124 | assem_debug("bcc %x\n",a); |
1125 | u_int offset=genjmp(a); |
1126 | output_w32(0x3a000000|offset); |
1127 | } |
1128 | |
1129 | static unused void emit_callreg(u_int r) |
1130 | { |
1131 | assert(r<15); |
1132 | assem_debug("blx %s\n",regname[r]); |
1133 | output_w32(0xe12fff30|r); |
1134 | } |
1135 | |
1136 | static void emit_jmpreg(u_int r) |
1137 | { |
1138 | assem_debug("mov pc,%s\n",regname[r]); |
1139 | output_w32(0xe1a00000|rd_rn_rm(15,0,r)); |
1140 | } |
1141 | |
1142 | static void emit_ret(void) |
1143 | { |
1144 | emit_jmpreg(14); |
1145 | } |
1146 | |
1147 | static void emit_readword_indexed(int offset, int rs, int rt) |
1148 | { |
1149 | assert(offset>-4096&&offset<4096); |
1150 | assem_debug("ldr %s,%s+%d\n",regname[rt],regname[rs],offset); |
1151 | if(offset>=0) { |
1152 | output_w32(0xe5900000|rd_rn_rm(rt,rs,0)|offset); |
1153 | }else{ |
1154 | output_w32(0xe5100000|rd_rn_rm(rt,rs,0)|(-offset)); |
1155 | } |
1156 | } |
1157 | |
1158 | static void emit_readword_dualindexedx4(int rs1, int rs2, int rt) |
1159 | { |
1160 | assem_debug("ldr %s,%s,%s lsl #2\n",regname[rt],regname[rs1],regname[rs2]); |
1161 | output_w32(0xe7900000|rd_rn_rm(rt,rs1,rs2)|0x100); |
1162 | } |
1163 | #define emit_readptr_dualindexedx_ptrlen emit_readword_dualindexedx4 |
1164 | |
1165 | static void emit_ldr_dualindexed(int rs1, int rs2, int rt) |
1166 | { |
1167 | assem_debug("ldr %s,%s,%s\n",regname[rt],regname[rs1],regname[rs2]); |
1168 | output_w32(0xe7900000|rd_rn_rm(rt,rs1,rs2)); |
1169 | } |
1170 | |
1171 | static void emit_ldrcc_dualindexed(int rs1, int rs2, int rt) |
1172 | { |
1173 | assem_debug("ldrcc %s,%s,%s\n",regname[rt],regname[rs1],regname[rs2]); |
1174 | output_w32(0x37900000|rd_rn_rm(rt,rs1,rs2)); |
1175 | } |
1176 | |
1177 | static void emit_ldrb_dualindexed(int rs1, int rs2, int rt) |
1178 | { |
1179 | assem_debug("ldrb %s,%s,%s\n",regname[rt],regname[rs1],regname[rs2]); |
1180 | output_w32(0xe7d00000|rd_rn_rm(rt,rs1,rs2)); |
1181 | } |
1182 | |
1183 | static void emit_ldrccb_dualindexed(int rs1, int rs2, int rt) |
1184 | { |
1185 | assem_debug("ldrccb %s,%s,%s\n",regname[rt],regname[rs1],regname[rs2]); |
1186 | output_w32(0x37d00000|rd_rn_rm(rt,rs1,rs2)); |
1187 | } |
1188 | |
1189 | static void emit_ldrsb_dualindexed(int rs1, int rs2, int rt) |
1190 | { |
1191 | assem_debug("ldrsb %s,%s,%s\n",regname[rt],regname[rs1],regname[rs2]); |
1192 | output_w32(0xe19000d0|rd_rn_rm(rt,rs1,rs2)); |
1193 | } |
1194 | |
1195 | static void emit_ldrccsb_dualindexed(int rs1, int rs2, int rt) |
1196 | { |
1197 | assem_debug("ldrccsb %s,%s,%s\n",regname[rt],regname[rs1],regname[rs2]); |
1198 | output_w32(0x319000d0|rd_rn_rm(rt,rs1,rs2)); |
1199 | } |
1200 | |
1201 | static void emit_ldrh_dualindexed(int rs1, int rs2, int rt) |
1202 | { |
1203 | assem_debug("ldrh %s,%s,%s\n",regname[rt],regname[rs1],regname[rs2]); |
1204 | output_w32(0xe19000b0|rd_rn_rm(rt,rs1,rs2)); |
1205 | } |
1206 | |
1207 | static void emit_ldrcch_dualindexed(int rs1, int rs2, int rt) |
1208 | { |
1209 | assem_debug("ldrcch %s,%s,%s\n",regname[rt],regname[rs1],regname[rs2]); |
1210 | output_w32(0x319000b0|rd_rn_rm(rt,rs1,rs2)); |
1211 | } |
1212 | |
1213 | static void emit_ldrsh_dualindexed(int rs1, int rs2, int rt) |
1214 | { |
1215 | assem_debug("ldrsh %s,%s,%s\n",regname[rt],regname[rs1],regname[rs2]); |
1216 | output_w32(0xe19000f0|rd_rn_rm(rt,rs1,rs2)); |
1217 | } |
1218 | |
1219 | static void emit_ldrccsh_dualindexed(int rs1, int rs2, int rt) |
1220 | { |
1221 | assem_debug("ldrccsh %s,%s,%s\n",regname[rt],regname[rs1],regname[rs2]); |
1222 | output_w32(0x319000f0|rd_rn_rm(rt,rs1,rs2)); |
1223 | } |
1224 | |
1225 | static void emit_str_dualindexed(int rs1, int rs2, int rt) |
1226 | { |
1227 | assem_debug("str %s,%s,%s\n",regname[rt],regname[rs1],regname[rs2]); |
1228 | output_w32(0xe7800000|rd_rn_rm(rt,rs1,rs2)); |
1229 | } |
1230 | |
1231 | static void emit_strb_dualindexed(int rs1, int rs2, int rt) |
1232 | { |
1233 | assem_debug("strb %s,%s,%s\n",regname[rt],regname[rs1],regname[rs2]); |
1234 | output_w32(0xe7c00000|rd_rn_rm(rt,rs1,rs2)); |
1235 | } |
1236 | |
1237 | static void emit_strh_dualindexed(int rs1, int rs2, int rt) |
1238 | { |
1239 | assem_debug("strh %s,%s,%s\n",regname[rt],regname[rs1],regname[rs2]); |
1240 | output_w32(0xe18000b0|rd_rn_rm(rt,rs1,rs2)); |
1241 | } |
1242 | |
1243 | static void emit_movsbl_indexed(int offset, int rs, int rt) |
1244 | { |
1245 | assert(offset>-256&&offset<256); |
1246 | assem_debug("ldrsb %s,%s+%d\n",regname[rt],regname[rs],offset); |
1247 | if(offset>=0) { |
1248 | output_w32(0xe1d000d0|rd_rn_rm(rt,rs,0)|((offset<<4)&0xf00)|(offset&0xf)); |
1249 | }else{ |
1250 | output_w32(0xe15000d0|rd_rn_rm(rt,rs,0)|(((-offset)<<4)&0xf00)|((-offset)&0xf)); |
1251 | } |
1252 | } |
1253 | |
1254 | static void emit_movswl_indexed(int offset, int rs, int rt) |
1255 | { |
1256 | assert(offset>-256&&offset<256); |
1257 | assem_debug("ldrsh %s,%s+%d\n",regname[rt],regname[rs],offset); |
1258 | if(offset>=0) { |
1259 | output_w32(0xe1d000f0|rd_rn_rm(rt,rs,0)|((offset<<4)&0xf00)|(offset&0xf)); |
1260 | }else{ |
1261 | output_w32(0xe15000f0|rd_rn_rm(rt,rs,0)|(((-offset)<<4)&0xf00)|((-offset)&0xf)); |
1262 | } |
1263 | } |
1264 | |
1265 | static void emit_movzbl_indexed(int offset, int rs, int rt) |
1266 | { |
1267 | assert(offset>-4096&&offset<4096); |
1268 | assem_debug("ldrb %s,%s+%d\n",regname[rt],regname[rs],offset); |
1269 | if(offset>=0) { |
1270 | output_w32(0xe5d00000|rd_rn_rm(rt,rs,0)|offset); |
1271 | }else{ |
1272 | output_w32(0xe5500000|rd_rn_rm(rt,rs,0)|(-offset)); |
1273 | } |
1274 | } |
1275 | |
1276 | static void emit_movzwl_indexed(int offset, int rs, int rt) |
1277 | { |
1278 | assert(offset>-256&&offset<256); |
1279 | assem_debug("ldrh %s,%s+%d\n",regname[rt],regname[rs],offset); |
1280 | if(offset>=0) { |
1281 | output_w32(0xe1d000b0|rd_rn_rm(rt,rs,0)|((offset<<4)&0xf00)|(offset&0xf)); |
1282 | }else{ |
1283 | output_w32(0xe15000b0|rd_rn_rm(rt,rs,0)|(((-offset)<<4)&0xf00)|((-offset)&0xf)); |
1284 | } |
1285 | } |
1286 | |
1287 | static void emit_ldrd(int offset, int rs, int rt) |
1288 | { |
1289 | assert(offset>-256&&offset<256); |
1290 | assem_debug("ldrd %s,%s+%d\n",regname[rt],regname[rs],offset); |
1291 | if(offset>=0) { |
1292 | output_w32(0xe1c000d0|rd_rn_rm(rt,rs,0)|((offset<<4)&0xf00)|(offset&0xf)); |
1293 | }else{ |
1294 | output_w32(0xe14000d0|rd_rn_rm(rt,rs,0)|(((-offset)<<4)&0xf00)|((-offset)&0xf)); |
1295 | } |
1296 | } |
1297 | |
1298 | static void emit_readword(void *addr, int rt) |
1299 | { |
1300 | uintptr_t offset = (u_char *)addr - (u_char *)&dynarec_local; |
1301 | assert(offset<4096); |
1302 | assem_debug("ldr %s,fp+%d\n",regname[rt],offset); |
1303 | output_w32(0xe5900000|rd_rn_rm(rt,FP,0)|offset); |
1304 | } |
1305 | #define emit_readptr emit_readword |
1306 | |
1307 | static void emit_writeword_indexed(int rt, int offset, int rs) |
1308 | { |
1309 | assert(offset>-4096&&offset<4096); |
1310 | assem_debug("str %s,%s+%d\n",regname[rt],regname[rs],offset); |
1311 | if(offset>=0) { |
1312 | output_w32(0xe5800000|rd_rn_rm(rt,rs,0)|offset); |
1313 | }else{ |
1314 | output_w32(0xe5000000|rd_rn_rm(rt,rs,0)|(-offset)); |
1315 | } |
1316 | } |
1317 | |
1318 | static void emit_writehword_indexed(int rt, int offset, int rs) |
1319 | { |
1320 | assert(offset>-256&&offset<256); |
1321 | assem_debug("strh %s,%s+%d\n",regname[rt],regname[rs],offset); |
1322 | if(offset>=0) { |
1323 | output_w32(0xe1c000b0|rd_rn_rm(rt,rs,0)|((offset<<4)&0xf00)|(offset&0xf)); |
1324 | }else{ |
1325 | output_w32(0xe14000b0|rd_rn_rm(rt,rs,0)|(((-offset)<<4)&0xf00)|((-offset)&0xf)); |
1326 | } |
1327 | } |
1328 | |
1329 | static void emit_writebyte_indexed(int rt, int offset, int rs) |
1330 | { |
1331 | assert(offset>-4096&&offset<4096); |
1332 | assem_debug("strb %s,%s+%d\n",regname[rt],regname[rs],offset); |
1333 | if(offset>=0) { |
1334 | output_w32(0xe5c00000|rd_rn_rm(rt,rs,0)|offset); |
1335 | }else{ |
1336 | output_w32(0xe5400000|rd_rn_rm(rt,rs,0)|(-offset)); |
1337 | } |
1338 | } |
1339 | |
1340 | static void emit_strcc_dualindexed(int rs1, int rs2, int rt) |
1341 | { |
1342 | assem_debug("strcc %s,%s,%s\n",regname[rt],regname[rs1],regname[rs2]); |
1343 | output_w32(0x37800000|rd_rn_rm(rt,rs1,rs2)); |
1344 | } |
1345 | |
1346 | static void emit_strccb_dualindexed(int rs1, int rs2, int rt) |
1347 | { |
1348 | assem_debug("strccb %s,%s,%s\n",regname[rt],regname[rs1],regname[rs2]); |
1349 | output_w32(0x37c00000|rd_rn_rm(rt,rs1,rs2)); |
1350 | } |
1351 | |
1352 | static void emit_strcch_dualindexed(int rs1, int rs2, int rt) |
1353 | { |
1354 | assem_debug("strcch %s,%s,%s\n",regname[rt],regname[rs1],regname[rs2]); |
1355 | output_w32(0x318000b0|rd_rn_rm(rt,rs1,rs2)); |
1356 | } |
1357 | |
1358 | static void emit_writeword(int rt, void *addr) |
1359 | { |
1360 | uintptr_t offset = (u_char *)addr - (u_char *)&dynarec_local; |
1361 | assert(offset<4096); |
1362 | assem_debug("str %s,fp+%d\n",regname[rt],offset); |
1363 | output_w32(0xe5800000|rd_rn_rm(rt,FP,0)|offset); |
1364 | } |
1365 | |
1366 | static void emit_umull(u_int rs1, u_int rs2, u_int hi, u_int lo) |
1367 | { |
1368 | assem_debug("umull %s, %s, %s, %s\n",regname[lo],regname[hi],regname[rs1],regname[rs2]); |
1369 | assert(rs1<16); |
1370 | assert(rs2<16); |
1371 | assert(hi<16); |
1372 | assert(lo<16); |
1373 | output_w32(0xe0800090|(hi<<16)|(lo<<12)|(rs2<<8)|rs1); |
1374 | } |
1375 | |
1376 | static void emit_smull(u_int rs1, u_int rs2, u_int hi, u_int lo) |
1377 | { |
1378 | assem_debug("smull %s, %s, %s, %s\n",regname[lo],regname[hi],regname[rs1],regname[rs2]); |
1379 | assert(rs1<16); |
1380 | assert(rs2<16); |
1381 | assert(hi<16); |
1382 | assert(lo<16); |
1383 | output_w32(0xe0c00090|(hi<<16)|(lo<<12)|(rs2<<8)|rs1); |
1384 | } |
1385 | |
1386 | static void emit_clz(int rs,int rt) |
1387 | { |
1388 | assem_debug("clz %s,%s\n",regname[rt],regname[rs]); |
1389 | output_w32(0xe16f0f10|rd_rn_rm(rt,0,rs)); |
1390 | } |
1391 | |
1392 | static void emit_subcs(int rs1,int rs2,int rt) |
1393 | { |
1394 | assem_debug("subcs %s,%s,%s\n",regname[rt],regname[rs1],regname[rs2]); |
1395 | output_w32(0x20400000|rd_rn_rm(rt,rs1,rs2)); |
1396 | } |
1397 | |
1398 | static void emit_shrcc_imm(int rs,u_int imm,int rt) |
1399 | { |
1400 | assert(imm>0); |
1401 | assert(imm<32); |
1402 | assem_debug("lsrcc %s,%s,#%d\n",regname[rt],regname[rs],imm); |
1403 | output_w32(0x31a00000|rd_rn_rm(rt,0,rs)|0x20|(imm<<7)); |
1404 | } |
1405 | |
1406 | static void emit_shrne_imm(int rs,u_int imm,int rt) |
1407 | { |
1408 | assert(imm>0); |
1409 | assert(imm<32); |
1410 | assem_debug("lsrne %s,%s,#%d\n",regname[rt],regname[rs],imm); |
1411 | output_w32(0x11a00000|rd_rn_rm(rt,0,rs)|0x20|(imm<<7)); |
1412 | } |
1413 | |
1414 | static void emit_negmi(int rs, int rt) |
1415 | { |
1416 | assem_debug("rsbmi %s,%s,#0\n",regname[rt],regname[rs]); |
1417 | output_w32(0x42600000|rd_rn_rm(rt,rs,0)); |
1418 | } |
1419 | |
1420 | static void emit_negsmi(int rs, int rt) |
1421 | { |
1422 | assem_debug("rsbsmi %s,%s,#0\n",regname[rt],regname[rs]); |
1423 | output_w32(0x42700000|rd_rn_rm(rt,rs,0)); |
1424 | } |
1425 | |
1426 | static void emit_bic_lsl(u_int rs1,u_int rs2,u_int shift,u_int rt) |
1427 | { |
1428 | assem_debug("bic %s,%s,%s lsl %s\n",regname[rt],regname[rs1],regname[rs2],regname[shift]); |
1429 | output_w32(0xe1C00000|rd_rn_rm(rt,rs1,rs2)|0x10|(shift<<8)); |
1430 | } |
1431 | |
1432 | static void emit_bic_lsr(u_int rs1,u_int rs2,u_int shift,u_int rt) |
1433 | { |
1434 | assem_debug("bic %s,%s,%s lsr %s\n",regname[rt],regname[rs1],regname[rs2],regname[shift]); |
1435 | output_w32(0xe1C00000|rd_rn_rm(rt,rs1,rs2)|0x30|(shift<<8)); |
1436 | } |
1437 | |
1438 | static void emit_teq(int rs, int rt) |
1439 | { |
1440 | assem_debug("teq %s,%s\n",regname[rs],regname[rt]); |
1441 | output_w32(0xe1300000|rd_rn_rm(0,rs,rt)); |
1442 | } |
1443 | |
1444 | static unused void emit_rsbimm(int rs, int imm, int rt) |
1445 | { |
1446 | u_int armval; |
1447 | genimm_checked(imm,&armval); |
1448 | assem_debug("rsb %s,%s,#%d\n",regname[rt],regname[rs],imm); |
1449 | output_w32(0xe2600000|rd_rn_rm(rt,rs,0)|armval); |
1450 | } |
1451 | |
1452 | // Conditionally select one of two immediates, optimizing for small code size |
1453 | // This will only be called if HAVE_CMOV_IMM is defined |
1454 | static void emit_cmov2imm_e_ne_compact(int imm1,int imm2,u_int rt) |
1455 | { |
1456 | u_int armval; |
1457 | if(genimm(imm2-imm1,&armval)) { |
1458 | emit_movimm(imm1,rt); |
1459 | assem_debug("addne %s,%s,#%d\n",regname[rt],regname[rt],imm2-imm1); |
1460 | output_w32(0x12800000|rd_rn_rm(rt,rt,0)|armval); |
1461 | }else if(genimm(imm1-imm2,&armval)) { |
1462 | emit_movimm(imm1,rt); |
1463 | assem_debug("subne %s,%s,#%d\n",regname[rt],regname[rt],imm1-imm2); |
1464 | output_w32(0x12400000|rd_rn_rm(rt,rt,0)|armval); |
1465 | } |
1466 | else { |
1467 | #ifndef HAVE_ARMV7 |
1468 | emit_movimm(imm1,rt); |
1469 | add_literal((int)out,imm2); |
1470 | assem_debug("ldrne %s,pc+? [=%x]\n",regname[rt],imm2); |
1471 | output_w32(0x15900000|rd_rn_rm(rt,15,0)); |
1472 | #else |
1473 | emit_movw(imm1&0x0000FFFF,rt); |
1474 | if((imm1&0xFFFF)!=(imm2&0xFFFF)) { |
1475 | assem_debug("movwne %s,#%d (0x%x)\n",regname[rt],imm2&0xFFFF,imm2&0xFFFF); |
1476 | output_w32(0x13000000|rd_rn_rm(rt,0,0)|(imm2&0xfff)|((imm2<<4)&0xf0000)); |
1477 | } |
1478 | emit_movt(imm1&0xFFFF0000,rt); |
1479 | if((imm1&0xFFFF0000)!=(imm2&0xFFFF0000)) { |
1480 | assem_debug("movtne %s,#%d (0x%x)\n",regname[rt],imm2&0xffff0000,imm2&0xffff0000); |
1481 | output_w32(0x13400000|rd_rn_rm(rt,0,0)|((imm2>>16)&0xfff)|((imm2>>12)&0xf0000)); |
1482 | } |
1483 | #endif |
1484 | } |
1485 | } |
1486 | |
1487 | // special case for checking invalid_code |
1488 | static void emit_cmpmem_indexedsr12_reg(int base,int r,int imm) |
1489 | { |
1490 | assert(imm<128&&imm>=0); |
1491 | assert(r>=0&&r<16); |
1492 | assem_debug("ldrb lr,%s,%s lsr #12\n",regname[base],regname[r]); |
1493 | output_w32(0xe7d00000|rd_rn_rm(HOST_TEMPREG,base,r)|0x620); |
1494 | emit_cmpimm(HOST_TEMPREG,imm); |
1495 | } |
1496 | |
1497 | static void emit_callne(int a) |
1498 | { |
1499 | assem_debug("blne %x\n",a); |
1500 | u_int offset=genjmp(a); |
1501 | output_w32(0x1b000000|offset); |
1502 | } |
1503 | |
1504 | // Used to preload hash table entries |
1505 | static unused void emit_prefetchreg(int r) |
1506 | { |
1507 | assem_debug("pld %s\n",regname[r]); |
1508 | output_w32(0xf5d0f000|rd_rn_rm(0,r,0)); |
1509 | } |
1510 | |
1511 | // Special case for mini_ht |
1512 | static void emit_ldreq_indexed(int rs, u_int offset, int rt) |
1513 | { |
1514 | assert(offset<4096); |
1515 | assem_debug("ldreq %s,[%s, #%d]\n",regname[rt],regname[rs],offset); |
1516 | output_w32(0x05900000|rd_rn_rm(rt,rs,0)|offset); |
1517 | } |
1518 | |
1519 | static void emit_orrne_imm(int rs,int imm,int rt) |
1520 | { |
1521 | u_int armval; |
1522 | genimm_checked(imm,&armval); |
1523 | assem_debug("orrne %s,%s,#%d\n",regname[rt],regname[rs],imm); |
1524 | output_w32(0x13800000|rd_rn_rm(rt,rs,0)|armval); |
1525 | } |
1526 | |
1527 | static unused void emit_addpl_imm(int rs,int imm,int rt) |
1528 | { |
1529 | u_int armval; |
1530 | genimm_checked(imm,&armval); |
1531 | assem_debug("addpl %s,%s,#%d\n",regname[rt],regname[rs],imm); |
1532 | output_w32(0x52800000|rd_rn_rm(rt,rs,0)|armval); |
1533 | } |
1534 | |
1535 | static void emit_jno_unlikely(int a) |
1536 | { |
1537 | //emit_jno(a); |
1538 | assem_debug("addvc pc,pc,#? (%x)\n",/*a-(int)out-8,*/a); |
1539 | output_w32(0x72800000|rd_rn_rm(15,15,0)); |
1540 | } |
1541 | |
1542 | static void save_regs_all(u_int reglist) |
1543 | { |
1544 | int i; |
1545 | if(!reglist) return; |
1546 | assem_debug("stmia fp,{"); |
1547 | for(i=0;i<16;i++) |
1548 | if(reglist&(1<<i)) |
1549 | assem_debug("r%d,",i); |
1550 | assem_debug("}\n"); |
1551 | output_w32(0xe88b0000|reglist); |
1552 | } |
1553 | |
1554 | static void restore_regs_all(u_int reglist) |
1555 | { |
1556 | int i; |
1557 | if(!reglist) return; |
1558 | assem_debug("ldmia fp,{"); |
1559 | for(i=0;i<16;i++) |
1560 | if(reglist&(1<<i)) |
1561 | assem_debug("r%d,",i); |
1562 | assem_debug("}\n"); |
1563 | output_w32(0xe89b0000|reglist); |
1564 | } |
1565 | |
1566 | // Save registers before function call |
1567 | static void save_regs(u_int reglist) |
1568 | { |
1569 | reglist&=CALLER_SAVE_REGS; // only save the caller-save registers, r0-r3, r12 |
1570 | save_regs_all(reglist); |
1571 | } |
1572 | |
1573 | // Restore registers after function call |
1574 | static void restore_regs(u_int reglist) |
1575 | { |
1576 | reglist&=CALLER_SAVE_REGS; |
1577 | restore_regs_all(reglist); |
1578 | } |
1579 | |
1580 | /* Stubs/epilogue */ |
1581 | |
1582 | static void literal_pool(int n) |
1583 | { |
1584 | if(!literalcount) return; |
1585 | if(n) { |
1586 | if((int)out-literals[0][0]<4096-n) return; |
1587 | } |
1588 | u_int *ptr; |
1589 | int i; |
1590 | for(i=0;i<literalcount;i++) |
1591 | { |
1592 | u_int l_addr=(u_int)out; |
1593 | int j; |
1594 | for(j=0;j<i;j++) { |
1595 | if(literals[j][1]==literals[i][1]) { |
1596 | //printf("dup %08x\n",literals[i][1]); |
1597 | l_addr=literals[j][0]; |
1598 | break; |
1599 | } |
1600 | } |
1601 | ptr=(u_int *)literals[i][0]; |
1602 | u_int offset=l_addr-(u_int)ptr-8; |
1603 | assert(offset<4096); |
1604 | assert(!(offset&3)); |
1605 | *ptr|=offset; |
1606 | if(l_addr==(u_int)out) { |
1607 | literals[i][0]=l_addr; // remember for dupes |
1608 | output_w32(literals[i][1]); |
1609 | } |
1610 | } |
1611 | literalcount=0; |
1612 | } |
1613 | |
1614 | static void literal_pool_jumpover(int n) |
1615 | { |
1616 | if(!literalcount) return; |
1617 | if(n) { |
1618 | if((int)out-literals[0][0]<4096-n) return; |
1619 | } |
1620 | void *jaddr = out; |
1621 | emit_jmp(0); |
1622 | literal_pool(0); |
1623 | set_jump_target(jaddr, out); |
1624 | } |
1625 | |
1626 | // parsed by get_pointer, find_extjump_insn |
1627 | static void emit_extjump2(u_char *addr, u_int target, void *linker) |
1628 | { |
1629 | u_char *ptr=(u_char *)addr; |
1630 | assert((ptr[3]&0x0e)==0xa); |
1631 | (void)ptr; |
1632 | |
1633 | emit_loadlp(target,0); |
1634 | emit_loadlp((u_int)addr,1); |
ab51e9e2 |
1635 | assert(ndrc->translation_cache <= addr && |
1636 | addr < ndrc->translation_cache + sizeof(ndrc->translation_cache)); |
630b122b |
1637 | //assert((target>=0x80000000&&target<0x80800000)||(target>0xA4000000&&target<0xA4001000)); |
1638 | //DEBUG > |
1639 | #ifdef DEBUG_CYCLE_COUNT |
1640 | emit_readword(&last_count,ECX); |
1641 | emit_add(HOST_CCREG,ECX,HOST_CCREG); |
1642 | emit_readword(&next_interupt,ECX); |
1643 | emit_writeword(HOST_CCREG,&Count); |
1644 | emit_sub(HOST_CCREG,ECX,HOST_CCREG); |
1645 | emit_writeword(ECX,&last_count); |
1646 | #endif |
1647 | //DEBUG < |
1648 | emit_far_jump(linker); |
1649 | } |
1650 | |
1651 | static void check_extjump2(void *src) |
1652 | { |
1653 | u_int *ptr = src; |
1654 | assert((ptr[1] & 0x0fff0000) == 0x059f0000); // ldr rx, [pc, #ofs] |
1655 | (void)ptr; |
1656 | } |
1657 | |
1658 | // put rt_val into rt, potentially making use of rs with value rs_val |
1659 | static void emit_movimm_from(u_int rs_val,int rs,u_int rt_val,int rt) |
1660 | { |
1661 | u_int armval; |
1662 | int diff; |
1663 | if(genimm(rt_val,&armval)) { |
1664 | assem_debug("mov %s,#%d\n",regname[rt],rt_val); |
1665 | output_w32(0xe3a00000|rd_rn_rm(rt,0,0)|armval); |
1666 | return; |
1667 | } |
1668 | if(genimm(~rt_val,&armval)) { |
1669 | assem_debug("mvn %s,#%d\n",regname[rt],rt_val); |
1670 | output_w32(0xe3e00000|rd_rn_rm(rt,0,0)|armval); |
1671 | return; |
1672 | } |
1673 | diff=rt_val-rs_val; |
1674 | if(genimm(diff,&armval)) { |
1675 | assem_debug("add %s,%s,#%d\n",regname[rt],regname[rs],diff); |
1676 | output_w32(0xe2800000|rd_rn_rm(rt,rs,0)|armval); |
1677 | return; |
1678 | }else if(genimm(-diff,&armval)) { |
1679 | assem_debug("sub %s,%s,#%d\n",regname[rt],regname[rs],-diff); |
1680 | output_w32(0xe2400000|rd_rn_rm(rt,rs,0)|armval); |
1681 | return; |
1682 | } |
1683 | emit_movimm(rt_val,rt); |
1684 | } |
1685 | |
1686 | // return 1 if above function can do it's job cheaply |
1687 | static int is_similar_value(u_int v1,u_int v2) |
1688 | { |
1689 | u_int xs; |
1690 | int diff; |
1691 | if(v1==v2) return 1; |
1692 | diff=v2-v1; |
1693 | for(xs=diff;xs!=0&&(xs&3)==0;xs>>=2) |
1694 | ; |
1695 | if(xs<0x100) return 1; |
1696 | for(xs=-diff;xs!=0&&(xs&3)==0;xs>>=2) |
1697 | ; |
1698 | if(xs<0x100) return 1; |
1699 | return 0; |
1700 | } |
1701 | |
1702 | static void mov_loadtype_adj(enum stub_type type,int rs,int rt) |
1703 | { |
1704 | switch(type) { |
1705 | case LOADB_STUB: emit_signextend8(rs,rt); break; |
1706 | case LOADBU_STUB: emit_andimm(rs,0xff,rt); break; |
1707 | case LOADH_STUB: emit_signextend16(rs,rt); break; |
1708 | case LOADHU_STUB: emit_andimm(rs,0xffff,rt); break; |
1709 | case LOADW_STUB: if(rs!=rt) emit_mov(rs,rt); break; |
1710 | default: assert(0); |
1711 | } |
1712 | } |
1713 | |
1714 | #include "pcsxmem.h" |
1715 | #include "pcsxmem_inline.c" |
1716 | |
1717 | static void do_readstub(int n) |
1718 | { |
1719 | assem_debug("do_readstub %x\n",start+stubs[n].a*4); |
1720 | literal_pool(256); |
1721 | set_jump_target(stubs[n].addr, out); |
1722 | enum stub_type type=stubs[n].type; |
1723 | int i=stubs[n].a; |
1724 | int rs=stubs[n].b; |
1725 | const struct regstat *i_regs=(struct regstat *)stubs[n].c; |
1726 | u_int reglist=stubs[n].e; |
1727 | const signed char *i_regmap=i_regs->regmap; |
1728 | int rt; |
1729 | if(dops[i].itype==C1LS||dops[i].itype==C2LS||dops[i].itype==LOADLR) { |
1730 | rt=get_reg(i_regmap,FTEMP); |
1731 | }else{ |
1732 | rt=get_reg(i_regmap,dops[i].rt1); |
1733 | } |
1734 | assert(rs>=0); |
1735 | int r,temp=-1,temp2=HOST_TEMPREG,regs_saved=0; |
1736 | void *restore_jump = NULL; |
1737 | reglist|=(1<<rs); |
1738 | for(r=0;r<=12;r++) { |
1739 | if(((1<<r)&0x13ff)&&((1<<r)®list)==0) { |
1740 | temp=r; break; |
1741 | } |
1742 | } |
1743 | if(rt>=0&&dops[i].rt1!=0) |
1744 | reglist&=~(1<<rt); |
1745 | if(temp==-1) { |
1746 | save_regs(reglist); |
1747 | regs_saved=1; |
1748 | temp=(rs==0)?2:0; |
1749 | } |
1750 | if((regs_saved||(reglist&2)==0)&&temp!=1&&rs!=1) |
1751 | temp2=1; |
1752 | emit_readword(&mem_rtab,temp); |
1753 | emit_shrimm(rs,12,temp2); |
1754 | emit_readword_dualindexedx4(temp,temp2,temp2); |
1755 | emit_lsls_imm(temp2,1,temp2); |
1756 | if(dops[i].itype==C1LS||dops[i].itype==C2LS||(rt>=0&&dops[i].rt1!=0)) { |
1757 | switch(type) { |
1758 | case LOADB_STUB: emit_ldrccsb_dualindexed(temp2,rs,rt); break; |
1759 | case LOADBU_STUB: emit_ldrccb_dualindexed(temp2,rs,rt); break; |
1760 | case LOADH_STUB: emit_ldrccsh_dualindexed(temp2,rs,rt); break; |
1761 | case LOADHU_STUB: emit_ldrcch_dualindexed(temp2,rs,rt); break; |
1762 | case LOADW_STUB: emit_ldrcc_dualindexed(temp2,rs,rt); break; |
1763 | default: assert(0); |
1764 | } |
1765 | } |
1766 | if(regs_saved) { |
1767 | restore_jump=out; |
1768 | emit_jcc(0); // jump to reg restore |
1769 | } |
1770 | else |
1771 | emit_jcc(stubs[n].retaddr); // return address |
1772 | |
1773 | if(!regs_saved) |
1774 | save_regs(reglist); |
1775 | void *handler=NULL; |
1776 | if(type==LOADB_STUB||type==LOADBU_STUB) |
1777 | handler=jump_handler_read8; |
1778 | if(type==LOADH_STUB||type==LOADHU_STUB) |
1779 | handler=jump_handler_read16; |
1780 | if(type==LOADW_STUB) |
1781 | handler=jump_handler_read32; |
1782 | assert(handler); |
1783 | pass_args(rs,temp2); |
1784 | int cc=get_reg(i_regmap,CCREG); |
1785 | if(cc<0) |
1786 | emit_loadreg(CCREG,2); |
1787 | emit_addimm(cc<0?2:cc,(int)stubs[n].d,2); |
1788 | emit_far_call(handler); |
1789 | if(dops[i].itype==C1LS||dops[i].itype==C2LS||(rt>=0&&dops[i].rt1!=0)) { |
1790 | mov_loadtype_adj(type,0,rt); |
1791 | } |
1792 | if(restore_jump) |
1793 | set_jump_target(restore_jump, out); |
1794 | restore_regs(reglist); |
1795 | emit_jmp(stubs[n].retaddr); // return address |
1796 | } |
1797 | |
1798 | static void inline_readstub(enum stub_type type, int i, u_int addr, |
1799 | const signed char regmap[], int target, int adj, u_int reglist) |
1800 | { |
1801 | int rs=get_reg(regmap,target); |
1802 | int rt=get_reg(regmap,target); |
91af94f0 |
1803 | if(rs<0) rs=get_reg_temp(regmap); |
630b122b |
1804 | assert(rs>=0); |
1805 | u_int is_dynamic; |
1806 | uintptr_t host_addr = 0; |
1807 | void *handler; |
1808 | int cc=get_reg(regmap,CCREG); |
1809 | if(pcsx_direct_read(type,addr,adj,cc,target?rs:-1,rt)) |
1810 | return; |
1811 | handler = get_direct_memhandler(mem_rtab, addr, type, &host_addr); |
1812 | if (handler == NULL) { |
1813 | if(rt<0||dops[i].rt1==0) |
1814 | return; |
1815 | if(addr!=host_addr) |
1816 | emit_movimm_from(addr,rs,host_addr,rs); |
1817 | switch(type) { |
1818 | case LOADB_STUB: emit_movsbl_indexed(0,rs,rt); break; |
1819 | case LOADBU_STUB: emit_movzbl_indexed(0,rs,rt); break; |
1820 | case LOADH_STUB: emit_movswl_indexed(0,rs,rt); break; |
1821 | case LOADHU_STUB: emit_movzwl_indexed(0,rs,rt); break; |
1822 | case LOADW_STUB: emit_readword_indexed(0,rs,rt); break; |
1823 | default: assert(0); |
1824 | } |
1825 | return; |
1826 | } |
1827 | is_dynamic=pcsxmem_is_handler_dynamic(addr); |
1828 | if(is_dynamic) { |
1829 | if(type==LOADB_STUB||type==LOADBU_STUB) |
1830 | handler=jump_handler_read8; |
1831 | if(type==LOADH_STUB||type==LOADHU_STUB) |
1832 | handler=jump_handler_read16; |
1833 | if(type==LOADW_STUB) |
1834 | handler=jump_handler_read32; |
1835 | } |
1836 | |
1837 | // call a memhandler |
1838 | if(rt>=0&&dops[i].rt1!=0) |
1839 | reglist&=~(1<<rt); |
1840 | save_regs(reglist); |
1841 | if(target==0) |
1842 | emit_movimm(addr,0); |
1843 | else if(rs!=0) |
1844 | emit_mov(rs,0); |
1845 | if(cc<0) |
1846 | emit_loadreg(CCREG,2); |
1847 | if(is_dynamic) { |
1848 | emit_movimm(((u_int *)mem_rtab)[addr>>12]<<1,1); |
1849 | emit_addimm(cc<0?2:cc,adj,2); |
1850 | } |
1851 | else { |
1852 | emit_readword(&last_count,3); |
1853 | emit_addimm(cc<0?2:cc,adj,2); |
1854 | emit_add(2,3,2); |
1855 | emit_writeword(2,&Count); |
1856 | } |
1857 | |
1858 | emit_far_call(handler); |
1859 | |
1860 | if(rt>=0&&dops[i].rt1!=0) { |
1861 | switch(type) { |
1862 | case LOADB_STUB: emit_signextend8(0,rt); break; |
1863 | case LOADBU_STUB: emit_andimm(0,0xff,rt); break; |
1864 | case LOADH_STUB: emit_signextend16(0,rt); break; |
1865 | case LOADHU_STUB: emit_andimm(0,0xffff,rt); break; |
1866 | case LOADW_STUB: if(rt!=0) emit_mov(0,rt); break; |
1867 | default: assert(0); |
1868 | } |
1869 | } |
1870 | restore_regs(reglist); |
1871 | } |
1872 | |
1873 | static void do_writestub(int n) |
1874 | { |
1875 | assem_debug("do_writestub %x\n",start+stubs[n].a*4); |
1876 | literal_pool(256); |
1877 | set_jump_target(stubs[n].addr, out); |
1878 | enum stub_type type=stubs[n].type; |
1879 | int i=stubs[n].a; |
1880 | int rs=stubs[n].b; |
1881 | const struct regstat *i_regs=(struct regstat *)stubs[n].c; |
1882 | u_int reglist=stubs[n].e; |
1883 | const signed char *i_regmap=i_regs->regmap; |
1884 | int rt,r; |
1885 | if(dops[i].itype==C1LS||dops[i].itype==C2LS) { |
1886 | rt=get_reg(i_regmap,r=FTEMP); |
1887 | }else{ |
1888 | rt=get_reg(i_regmap,r=dops[i].rs2); |
1889 | } |
1890 | assert(rs>=0); |
1891 | assert(rt>=0); |
1892 | int rtmp,temp=-1,temp2=HOST_TEMPREG,regs_saved=0; |
1893 | void *restore_jump = NULL; |
1894 | int reglist2=reglist|(1<<rs)|(1<<rt); |
1895 | for(rtmp=0;rtmp<=12;rtmp++) { |
1896 | if(((1<<rtmp)&0x13ff)&&((1<<rtmp)®list2)==0) { |
1897 | temp=rtmp; break; |
1898 | } |
1899 | } |
1900 | if(temp==-1) { |
1901 | save_regs(reglist); |
1902 | regs_saved=1; |
1903 | for(rtmp=0;rtmp<=3;rtmp++) |
1904 | if(rtmp!=rs&&rtmp!=rt) |
1905 | {temp=rtmp;break;} |
1906 | } |
1907 | if((regs_saved||(reglist2&8)==0)&&temp!=3&&rs!=3&&rt!=3) |
1908 | temp2=3; |
1909 | emit_readword(&mem_wtab,temp); |
1910 | emit_shrimm(rs,12,temp2); |
1911 | emit_readword_dualindexedx4(temp,temp2,temp2); |
1912 | emit_lsls_imm(temp2,1,temp2); |
1913 | switch(type) { |
1914 | case STOREB_STUB: emit_strccb_dualindexed(temp2,rs,rt); break; |
1915 | case STOREH_STUB: emit_strcch_dualindexed(temp2,rs,rt); break; |
1916 | case STOREW_STUB: emit_strcc_dualindexed(temp2,rs,rt); break; |
1917 | default: assert(0); |
1918 | } |
1919 | if(regs_saved) { |
1920 | restore_jump=out; |
1921 | emit_jcc(0); // jump to reg restore |
1922 | } |
1923 | else |
1924 | emit_jcc(stubs[n].retaddr); // return address (invcode check) |
1925 | |
1926 | if(!regs_saved) |
1927 | save_regs(reglist); |
1928 | void *handler=NULL; |
1929 | switch(type) { |
1930 | case STOREB_STUB: handler=jump_handler_write8; break; |
1931 | case STOREH_STUB: handler=jump_handler_write16; break; |
1932 | case STOREW_STUB: handler=jump_handler_write32; break; |
1933 | default: assert(0); |
1934 | } |
1935 | assert(handler); |
1936 | pass_args(rs,rt); |
1937 | if(temp2!=3) |
1938 | emit_mov(temp2,3); |
1939 | int cc=get_reg(i_regmap,CCREG); |
1940 | if(cc<0) |
1941 | emit_loadreg(CCREG,2); |
1942 | emit_addimm(cc<0?2:cc,(int)stubs[n].d,2); |
1943 | // returns new cycle_count |
1944 | emit_far_call(handler); |
1945 | emit_addimm(0,-(int)stubs[n].d,cc<0?2:cc); |
1946 | if(cc<0) |
1947 | emit_storereg(CCREG,2); |
1948 | if(restore_jump) |
1949 | set_jump_target(restore_jump, out); |
1950 | restore_regs(reglist); |
1951 | emit_jmp(stubs[n].retaddr); |
1952 | } |
1953 | |
1954 | static void inline_writestub(enum stub_type type, int i, u_int addr, |
1955 | const signed char regmap[], int target, int adj, u_int reglist) |
1956 | { |
91af94f0 |
1957 | int rs=get_reg_temp(regmap); |
630b122b |
1958 | int rt=get_reg(regmap,target); |
1959 | assert(rs>=0); |
1960 | assert(rt>=0); |
1961 | uintptr_t host_addr = 0; |
1962 | void *handler = get_direct_memhandler(mem_wtab, addr, type, &host_addr); |
1963 | if (handler == NULL) { |
1964 | if(addr!=host_addr) |
1965 | emit_movimm_from(addr,rs,host_addr,rs); |
1966 | switch(type) { |
1967 | case STOREB_STUB: emit_writebyte_indexed(rt,0,rs); break; |
1968 | case STOREH_STUB: emit_writehword_indexed(rt,0,rs); break; |
1969 | case STOREW_STUB: emit_writeword_indexed(rt,0,rs); break; |
1970 | default: assert(0); |
1971 | } |
1972 | return; |
1973 | } |
1974 | |
1975 | // call a memhandler |
1976 | save_regs(reglist); |
1977 | pass_args(rs,rt); |
1978 | int cc=get_reg(regmap,CCREG); |
1979 | if(cc<0) |
1980 | emit_loadreg(CCREG,2); |
1981 | emit_addimm(cc<0?2:cc,adj,2); |
1982 | emit_movimm((u_int)handler,3); |
1983 | // returns new cycle_count |
1984 | emit_far_call(jump_handler_write_h); |
1985 | emit_addimm(0,-adj,cc<0?2:cc); |
1986 | if(cc<0) |
1987 | emit_storereg(CCREG,2); |
1988 | restore_regs(reglist); |
1989 | } |
1990 | |
1991 | // this output is parsed by verify_dirty, get_bounds, isclean, get_clean_addr |
1992 | static void do_dirty_stub_emit_args(u_int arg0, u_int source_len) |
1993 | { |
1994 | #ifndef HAVE_ARMV7 |
1995 | emit_loadlp((int)source, 1); |
1996 | emit_loadlp((int)copy, 2); |
1997 | emit_loadlp(source_len, 3); |
1998 | #else |
1999 | emit_movw(((u_int)source)&0x0000FFFF, 1); |
2000 | emit_movw(((u_int)copy)&0x0000FFFF, 2); |
2001 | emit_movt(((u_int)source)&0xFFFF0000, 1); |
2002 | emit_movt(((u_int)copy)&0xFFFF0000, 2); |
2003 | emit_movw(source_len, 3); |
2004 | #endif |
2005 | emit_movimm(arg0, 0); |
2006 | } |
2007 | |
2008 | static void *do_dirty_stub(int i, u_int source_len) |
2009 | { |
2010 | assem_debug("do_dirty_stub %x\n",start+i*4); |
2011 | do_dirty_stub_emit_args(start + i*4, source_len); |
2012 | emit_far_call(verify_code); |
2013 | void *entry = out; |
2014 | load_regs_entry(i); |
2015 | if (entry == out) |
2016 | entry = instr_addr[i]; |
2017 | emit_jmp(instr_addr[i]); |
2018 | return entry; |
2019 | } |
2020 | |
2021 | static void do_dirty_stub_ds(u_int source_len) |
2022 | { |
2023 | do_dirty_stub_emit_args(start + 1, source_len); |
2024 | emit_far_call(verify_code_ds); |
2025 | } |
2026 | |
2027 | /* Special assem */ |
2028 | |
2029 | static void c2op_prologue(u_int op, int i, const struct regstat *i_regs, u_int reglist) |
2030 | { |
2031 | save_regs_all(reglist); |
2032 | cop2_do_stall_check(op, i, i_regs, 0); |
2033 | #ifdef PCNT |
2034 | emit_movimm(op, 0); |
2035 | emit_far_call(pcnt_gte_start); |
2036 | #endif |
2037 | emit_addimm(FP, (u_char *)&psxRegs.CP2D.r[0] - (u_char *)&dynarec_local, 0); // cop2 regs |
2038 | } |
2039 | |
2040 | static void c2op_epilogue(u_int op,u_int reglist) |
2041 | { |
2042 | #ifdef PCNT |
2043 | emit_movimm(op,0); |
2044 | emit_far_call(pcnt_gte_end); |
2045 | #endif |
2046 | restore_regs_all(reglist); |
2047 | } |
2048 | |
2049 | static void c2op_call_MACtoIR(int lm,int need_flags) |
2050 | { |
2051 | if(need_flags) |
2052 | emit_far_call(lm?gteMACtoIR_lm1:gteMACtoIR_lm0); |
2053 | else |
2054 | emit_far_call(lm?gteMACtoIR_lm1_nf:gteMACtoIR_lm0_nf); |
2055 | } |
2056 | |
2057 | static void c2op_call_rgb_func(void *func,int lm,int need_ir,int need_flags) |
2058 | { |
2059 | emit_far_call(func); |
2060 | // func is C code and trashes r0 |
2061 | emit_addimm(FP,(int)&psxRegs.CP2D.r[0]-(int)&dynarec_local,0); |
2062 | if(need_flags||need_ir) |
2063 | c2op_call_MACtoIR(lm,need_flags); |
2064 | emit_far_call(need_flags?gteMACtoRGB:gteMACtoRGB_nf); |
2065 | } |
2066 | |
2067 | static void c2op_assemble(int i, const struct regstat *i_regs) |
2068 | { |
2069 | u_int c2op = source[i] & 0x3f; |
2070 | u_int reglist_full = get_host_reglist(i_regs->regmap); |
2071 | u_int reglist = reglist_full & CALLER_SAVE_REGS; |
2072 | int need_flags, need_ir; |
2073 | |
2074 | if (gte_handlers[c2op]!=NULL) { |
2075 | need_flags=!(gte_unneeded[i+1]>>63); // +1 because of how liveness detection works |
2076 | need_ir=(gte_unneeded[i+1]&0xe00)!=0xe00; |
2077 | assem_debug("gte op %08x, unneeded %016llx, need_flags %d, need_ir %d\n", |
2078 | source[i],gte_unneeded[i+1],need_flags,need_ir); |
2079 | if(HACK_ENABLED(NDHACK_GTE_NO_FLAGS)) |
2080 | need_flags=0; |
2081 | int shift = (source[i] >> 19) & 1; |
2082 | int lm = (source[i] >> 10) & 1; |
2083 | switch(c2op) { |
2084 | #ifndef DRC_DBG |
2085 | case GTE_MVMVA: { |
2086 | #ifdef HAVE_ARMV5 |
2087 | int v = (source[i] >> 15) & 3; |
2088 | int cv = (source[i] >> 13) & 3; |
2089 | int mx = (source[i] >> 17) & 3; |
2090 | reglist=reglist_full&(CALLER_SAVE_REGS|0xf0); // +{r4-r7} |
2091 | c2op_prologue(c2op,i,i_regs,reglist); |
2092 | /* r4,r5 = VXYZ(v) packed; r6 = &MX11(mx); r7 = &CV1(cv) */ |
2093 | if(v<3) |
2094 | emit_ldrd(v*8,0,4); |
2095 | else { |
2096 | emit_movzwl_indexed(9*4,0,4); // gteIR |
2097 | emit_movzwl_indexed(10*4,0,6); |
2098 | emit_movzwl_indexed(11*4,0,5); |
2099 | emit_orrshl_imm(6,16,4); |
2100 | } |
2101 | if(mx<3) |
2102 | emit_addimm(0,32*4+mx*8*4,6); |
2103 | else |
2104 | emit_readword(&zeromem_ptr,6); |
2105 | if(cv<3) |
2106 | emit_addimm(0,32*4+(cv*8+5)*4,7); |
2107 | else |
2108 | emit_readword(&zeromem_ptr,7); |
2109 | #ifdef __ARM_NEON__ |
2110 | emit_movimm(source[i],1); // opcode |
2111 | emit_far_call(gteMVMVA_part_neon); |
2112 | if(need_flags) { |
2113 | emit_movimm(lm,1); |
2114 | emit_far_call(gteMACtoIR_flags_neon); |
2115 | } |
2116 | #else |
2117 | if(cv==3&&shift) |
2cb5735e |
2118 | emit_far_call(gteMVMVA_part_cv3sh12_arm); |
630b122b |
2119 | else { |
2120 | emit_movimm(shift,1); |
2cb5735e |
2121 | emit_far_call(need_flags?gteMVMVA_part_arm:gteMVMVA_part_nf_arm); |
630b122b |
2122 | } |
2123 | if(need_flags||need_ir) |
2124 | c2op_call_MACtoIR(lm,need_flags); |
2125 | #endif |
2126 | #else /* if not HAVE_ARMV5 */ |
2127 | c2op_prologue(c2op,i,i_regs,reglist); |
2128 | emit_movimm(source[i],1); // opcode |
2129 | emit_writeword(1,&psxRegs.code); |
2130 | emit_far_call(need_flags?gte_handlers[c2op]:gte_handlers_nf[c2op]); |
2131 | #endif |
2132 | break; |
2133 | } |
2134 | case GTE_OP: |
2135 | c2op_prologue(c2op,i,i_regs,reglist); |
2136 | emit_far_call(shift?gteOP_part_shift:gteOP_part_noshift); |
2137 | if(need_flags||need_ir) { |
2138 | emit_addimm(FP,(int)&psxRegs.CP2D.r[0]-(int)&dynarec_local,0); |
2139 | c2op_call_MACtoIR(lm,need_flags); |
2140 | } |
2141 | break; |
2142 | case GTE_DPCS: |
2143 | c2op_prologue(c2op,i,i_regs,reglist); |
2144 | c2op_call_rgb_func(shift?gteDPCS_part_shift:gteDPCS_part_noshift,lm,need_ir,need_flags); |
2145 | break; |
2146 | case GTE_INTPL: |
2147 | c2op_prologue(c2op,i,i_regs,reglist); |
2148 | c2op_call_rgb_func(shift?gteINTPL_part_shift:gteINTPL_part_noshift,lm,need_ir,need_flags); |
2149 | break; |
2150 | case GTE_SQR: |
2151 | c2op_prologue(c2op,i,i_regs,reglist); |
2152 | emit_far_call(shift?gteSQR_part_shift:gteSQR_part_noshift); |
2153 | if(need_flags||need_ir) { |
2154 | emit_addimm(FP,(int)&psxRegs.CP2D.r[0]-(int)&dynarec_local,0); |
2155 | c2op_call_MACtoIR(lm,need_flags); |
2156 | } |
2157 | break; |
2158 | case GTE_DCPL: |
2159 | c2op_prologue(c2op,i,i_regs,reglist); |
2160 | c2op_call_rgb_func(gteDCPL_part,lm,need_ir,need_flags); |
2161 | break; |
2162 | case GTE_GPF: |
2163 | c2op_prologue(c2op,i,i_regs,reglist); |
2164 | c2op_call_rgb_func(shift?gteGPF_part_shift:gteGPF_part_noshift,lm,need_ir,need_flags); |
2165 | break; |
2166 | case GTE_GPL: |
2167 | c2op_prologue(c2op,i,i_regs,reglist); |
2168 | c2op_call_rgb_func(shift?gteGPL_part_shift:gteGPL_part_noshift,lm,need_ir,need_flags); |
2169 | break; |
2170 | #endif |
2171 | default: |
2172 | c2op_prologue(c2op,i,i_regs,reglist); |
2173 | #ifdef DRC_DBG |
2174 | emit_movimm(source[i],1); // opcode |
2175 | emit_writeword(1,&psxRegs.code); |
2176 | #endif |
2177 | emit_far_call(need_flags?gte_handlers[c2op]:gte_handlers_nf[c2op]); |
2178 | break; |
2179 | } |
2180 | c2op_epilogue(c2op,reglist); |
2181 | } |
2182 | } |
2183 | |
2184 | static void c2op_ctc2_31_assemble(signed char sl, signed char temp) |
2185 | { |
2186 | //value = value & 0x7ffff000; |
2187 | //if (value & 0x7f87e000) value |= 0x80000000; |
2188 | emit_shrimm(sl,12,temp); |
2189 | emit_shlimm(temp,12,temp); |
2190 | emit_testimm(temp,0x7f000000); |
2191 | emit_testeqimm(temp,0x00870000); |
2192 | emit_testeqimm(temp,0x0000e000); |
2193 | emit_orrne_imm(temp,0x80000000,temp); |
2194 | } |
2195 | |
2196 | static void do_mfc2_31_one(u_int copr,signed char temp) |
2197 | { |
2198 | emit_readword(®_cop2d[copr],temp); |
2199 | emit_lsls_imm(temp,16,temp); |
2200 | emit_cmovs_imm(0,temp); |
2201 | emit_cmpimm(temp,0xf80<<16); |
2202 | emit_andimm(temp,0xf80<<16,temp); |
2203 | emit_cmovae_imm(0xf80<<16,temp); |
2204 | } |
2205 | |
2206 | static void c2op_mfc2_29_assemble(signed char tl, signed char temp) |
2207 | { |
2208 | if (temp < 0) { |
2209 | host_tempreg_acquire(); |
2210 | temp = HOST_TEMPREG; |
2211 | } |
2212 | do_mfc2_31_one(9,temp); |
2213 | emit_shrimm(temp,7+16,tl); |
2214 | do_mfc2_31_one(10,temp); |
2215 | emit_orrshr_imm(temp,2+16,tl); |
2216 | do_mfc2_31_one(11,temp); |
2217 | emit_orrshr_imm(temp,-3+16,tl); |
2218 | emit_writeword(tl,®_cop2d[29]); |
2219 | if (temp == HOST_TEMPREG) |
2220 | host_tempreg_release(); |
2221 | } |
2222 | |
2223 | static void multdiv_assemble_arm(int i, const struct regstat *i_regs) |
2224 | { |
2225 | // case 0x18: MULT |
2226 | // case 0x19: MULTU |
2227 | // case 0x1A: DIV |
2228 | // case 0x1B: DIVU |
2229 | // case 0x1C: DMULT |
2230 | // case 0x1D: DMULTU |
2231 | // case 0x1E: DDIV |
2232 | // case 0x1F: DDIVU |
2233 | if(dops[i].rs1&&dops[i].rs2) |
2234 | { |
2235 | if((dops[i].opcode2&4)==0) // 32-bit |
2236 | { |
2237 | if(dops[i].opcode2==0x18) // MULT |
2238 | { |
2239 | signed char m1=get_reg(i_regs->regmap,dops[i].rs1); |
2240 | signed char m2=get_reg(i_regs->regmap,dops[i].rs2); |
2241 | signed char hi=get_reg(i_regs->regmap,HIREG); |
2242 | signed char lo=get_reg(i_regs->regmap,LOREG); |
2243 | assert(m1>=0); |
2244 | assert(m2>=0); |
2245 | assert(hi>=0); |
2246 | assert(lo>=0); |
2247 | emit_smull(m1,m2,hi,lo); |
2248 | } |
2249 | if(dops[i].opcode2==0x19) // MULTU |
2250 | { |
2251 | signed char m1=get_reg(i_regs->regmap,dops[i].rs1); |
2252 | signed char m2=get_reg(i_regs->regmap,dops[i].rs2); |
2253 | signed char hi=get_reg(i_regs->regmap,HIREG); |
2254 | signed char lo=get_reg(i_regs->regmap,LOREG); |
2255 | assert(m1>=0); |
2256 | assert(m2>=0); |
2257 | assert(hi>=0); |
2258 | assert(lo>=0); |
2259 | emit_umull(m1,m2,hi,lo); |
2260 | } |
2261 | if(dops[i].opcode2==0x1A) // DIV |
2262 | { |
2263 | signed char d1=get_reg(i_regs->regmap,dops[i].rs1); |
2264 | signed char d2=get_reg(i_regs->regmap,dops[i].rs2); |
2265 | assert(d1>=0); |
2266 | assert(d2>=0); |
2267 | signed char quotient=get_reg(i_regs->regmap,LOREG); |
2268 | signed char remainder=get_reg(i_regs->regmap,HIREG); |
2269 | assert(quotient>=0); |
2270 | assert(remainder>=0); |
2271 | emit_movs(d1,remainder); |
2272 | emit_movimm(0xffffffff,quotient); |
2273 | emit_negmi(quotient,quotient); // .. quotient and .. |
2274 | emit_negmi(remainder,remainder); // .. remainder for div0 case (will be negated back after jump) |
2275 | emit_movs(d2,HOST_TEMPREG); |
2276 | emit_jeq(out+52); // Division by zero |
2277 | emit_negsmi(HOST_TEMPREG,HOST_TEMPREG); |
2278 | #ifdef HAVE_ARMV5 |
2279 | emit_clz(HOST_TEMPREG,quotient); |
2280 | emit_shl(HOST_TEMPREG,quotient,HOST_TEMPREG); |
2281 | #else |
2282 | emit_movimm(0,quotient); |
2283 | emit_addpl_imm(quotient,1,quotient); |
2284 | emit_lslpls_imm(HOST_TEMPREG,1,HOST_TEMPREG); |
2285 | emit_jns(out-2*4); |
2286 | #endif |
2287 | emit_orimm(quotient,1<<31,quotient); |
2288 | emit_shr(quotient,quotient,quotient); |
2289 | emit_cmp(remainder,HOST_TEMPREG); |
2290 | emit_subcs(remainder,HOST_TEMPREG,remainder); |
2291 | emit_adcs(quotient,quotient,quotient); |
2292 | emit_shrimm(HOST_TEMPREG,1,HOST_TEMPREG); |
2293 | emit_jcc(out-16); // -4 |
2294 | emit_teq(d1,d2); |
2295 | emit_negmi(quotient,quotient); |
2296 | emit_test(d1,d1); |
2297 | emit_negmi(remainder,remainder); |
2298 | } |
2299 | if(dops[i].opcode2==0x1B) // DIVU |
2300 | { |
2301 | signed char d1=get_reg(i_regs->regmap,dops[i].rs1); // dividend |
2302 | signed char d2=get_reg(i_regs->regmap,dops[i].rs2); // divisor |
2303 | assert(d1>=0); |
2304 | assert(d2>=0); |
2305 | signed char quotient=get_reg(i_regs->regmap,LOREG); |
2306 | signed char remainder=get_reg(i_regs->regmap,HIREG); |
2307 | assert(quotient>=0); |
2308 | assert(remainder>=0); |
2309 | emit_mov(d1,remainder); |
2310 | emit_movimm(0xffffffff,quotient); // div0 case |
2311 | emit_test(d2,d2); |
2312 | emit_jeq(out+40); // Division by zero |
2313 | #ifdef HAVE_ARMV5 |
2314 | emit_clz(d2,HOST_TEMPREG); |
2315 | emit_movimm(1<<31,quotient); |
2316 | emit_shl(d2,HOST_TEMPREG,d2); |
2317 | #else |
2318 | emit_movimm(0,HOST_TEMPREG); |
2319 | emit_addpl_imm(HOST_TEMPREG,1,HOST_TEMPREG); |
2320 | emit_lslpls_imm(d2,1,d2); |
2321 | emit_jns(out-2*4); |
2322 | emit_movimm(1<<31,quotient); |
2323 | #endif |
2324 | emit_shr(quotient,HOST_TEMPREG,quotient); |
2325 | emit_cmp(remainder,d2); |
2326 | emit_subcs(remainder,d2,remainder); |
2327 | emit_adcs(quotient,quotient,quotient); |
2328 | emit_shrcc_imm(d2,1,d2); |
2329 | emit_jcc(out-16); // -4 |
2330 | } |
2331 | } |
2332 | else // 64-bit |
2333 | assert(0); |
2334 | } |
2335 | else |
2336 | { |
2337 | // Multiply by zero is zero. |
2338 | // MIPS does not have a divide by zero exception. |
2339 | // The result is undefined, we return zero. |
2340 | signed char hr=get_reg(i_regs->regmap,HIREG); |
2341 | signed char lr=get_reg(i_regs->regmap,LOREG); |
2342 | if(hr>=0) emit_zeroreg(hr); |
2343 | if(lr>=0) emit_zeroreg(lr); |
2344 | } |
2345 | } |
2346 | #define multdiv_assemble multdiv_assemble_arm |
2347 | |
2348 | static void do_jump_vaddr(int rs) |
2349 | { |
2350 | emit_far_jump(jump_vaddr_reg[rs]); |
2351 | } |
2352 | |
2353 | static void do_preload_rhash(int r) { |
2354 | // Don't need this for ARM. On x86, this puts the value 0xf8 into the |
2355 | // register. On ARM the hash can be done with a single instruction (below) |
2356 | } |
2357 | |
2358 | static void do_preload_rhtbl(int ht) { |
2359 | emit_addimm(FP,(int)&mini_ht-(int)&dynarec_local,ht); |
2360 | } |
2361 | |
2362 | static void do_rhash(int rs,int rh) { |
2363 | emit_andimm(rs,0xf8,rh); |
2364 | } |
2365 | |
2366 | static void do_miniht_load(int ht,int rh) { |
2367 | assem_debug("ldr %s,[%s,%s]!\n",regname[rh],regname[ht],regname[rh]); |
2368 | output_w32(0xe7b00000|rd_rn_rm(rh,ht,rh)); |
2369 | } |
2370 | |
2371 | static void do_miniht_jump(int rs,int rh,int ht) { |
2372 | emit_cmp(rh,rs); |
2373 | emit_ldreq_indexed(ht,4,15); |
2374 | #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK |
2375 | if(rs!=7) |
2376 | emit_mov(rs,7); |
2377 | rs=7; |
2378 | #endif |
2379 | do_jump_vaddr(rs); |
2380 | } |
2381 | |
2382 | static void do_miniht_insert(u_int return_address,int rt,int temp) { |
2383 | #ifndef HAVE_ARMV7 |
2384 | emit_movimm(return_address,rt); // PC into link register |
2385 | add_to_linker(out,return_address,1); |
2386 | emit_pcreladdr(temp); |
2387 | emit_writeword(rt,&mini_ht[(return_address&0xFF)>>3][0]); |
2388 | emit_writeword(temp,&mini_ht[(return_address&0xFF)>>3][1]); |
2389 | #else |
2390 | emit_movw(return_address&0x0000FFFF,rt); |
2391 | add_to_linker(out,return_address,1); |
2392 | emit_pcreladdr(temp); |
2393 | emit_writeword(temp,&mini_ht[(return_address&0xFF)>>3][1]); |
2394 | emit_movt(return_address&0xFFFF0000,rt); |
2395 | emit_writeword(rt,&mini_ht[(return_address&0xFF)>>3][0]); |
2396 | #endif |
2397 | } |
2398 | |
2399 | // CPU-architecture-specific initialization |
2400 | static void arch_init(void) |
2401 | { |
2402 | uintptr_t diff = (u_char *)&ndrc->tramp.f - (u_char *)&ndrc->tramp.ops - 8; |
2403 | struct tramp_insns *ops = ndrc->tramp.ops; |
2404 | size_t i; |
2405 | assert(!(diff & 3)); |
2406 | assert(diff < 0x1000); |
2407 | start_tcache_write(ops, (u_char *)ops + sizeof(ndrc->tramp.ops)); |
2408 | for (i = 0; i < ARRAY_SIZE(ndrc->tramp.ops); i++) |
2409 | ops[i].ldrpc = 0xe5900000 | rd_rn_rm(15,15,0) | diff; // ldr pc, [=val] |
2410 | end_tcache_write(ops, (u_char *)ops + sizeof(ndrc->tramp.ops)); |
2411 | } |
2412 | |
2413 | // vim:shiftwidth=2:expandtab |