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Commit | Line | Data |
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367e86e8 FB |
1 | |
2 | #define DATA_BITS (1 << (3 + SHIFT)) | |
3 | #define SHIFT_MASK (DATA_BITS - 1) | |
4 | #define SIGN_MASK (1 << (DATA_BITS - 1)) | |
5 | ||
6 | #if DATA_BITS == 8 | |
7 | #define SUFFIX b | |
8 | #define DATA_TYPE uint8_t | |
9 | #define DATA_STYPE int8_t | |
10 | #define DATA_MASK 0xff | |
11 | #elif DATA_BITS == 16 | |
12 | #define SUFFIX w | |
13 | #define DATA_TYPE uint16_t | |
14 | #define DATA_STYPE int16_t | |
15 | #define DATA_MASK 0xffff | |
16 | #elif DATA_BITS == 32 | |
17 | #define SUFFIX l | |
18 | #define DATA_TYPE uint32_t | |
19 | #define DATA_STYPE int32_t | |
20 | #define DATA_MASK 0xffffffff | |
21 | #else | |
22 | #error unhandled operand size | |
23 | #endif | |
24 | ||
25 | /* dynamic flags computation */ | |
26 | ||
27 | static int glue(compute_all_add, SUFFIX)(void) | |
28 | { | |
29 | int cf, pf, af, zf, sf, of; | |
30 | int src1, src2; | |
31 | src1 = CC_SRC; | |
32 | src2 = CC_DST - CC_SRC; | |
33 | cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1; | |
34 | pf = parity_table[(uint8_t)CC_DST]; | |
35 | af = (CC_DST ^ src1 ^ src2) & 0x10; | |
36 | zf = ((DATA_TYPE)CC_DST != 0) << 6; | |
37 | sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; | |
38 | of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; | |
39 | return cf | pf | af | zf | sf | of; | |
40 | } | |
41 | ||
42 | static int glue(compute_c_add, SUFFIX)(void) | |
43 | { | |
44 | int src1, cf; | |
45 | src1 = CC_SRC; | |
46 | cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1; | |
47 | return cf; | |
48 | } | |
49 | ||
50 | static int glue(compute_all_sub, SUFFIX)(void) | |
51 | { | |
52 | int cf, pf, af, zf, sf, of; | |
53 | int src1, src2; | |
54 | src1 = CC_SRC; | |
55 | src2 = CC_SRC - CC_DST; | |
56 | cf = (DATA_TYPE)src1 < (DATA_TYPE)src2; | |
57 | pf = parity_table[(uint8_t)CC_DST]; | |
58 | af = (CC_DST ^ src1 ^ src2) & 0x10; | |
59 | zf = ((DATA_TYPE)CC_DST != 0) << 6; | |
60 | sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; | |
61 | of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; | |
62 | return cf | pf | af | zf | sf | of; | |
63 | } | |
64 | ||
65 | static int glue(compute_c_sub, SUFFIX)(void) | |
66 | { | |
67 | int src1, src2, cf; | |
68 | src1 = CC_SRC; | |
69 | src2 = CC_SRC - CC_DST; | |
70 | cf = (DATA_TYPE)src1 < (DATA_TYPE)src1; | |
71 | return cf; | |
72 | } | |
73 | ||
74 | static int glue(compute_all_logic, SUFFIX)(void) | |
75 | { | |
76 | int cf, pf, af, zf, sf, of; | |
77 | cf = 0; | |
78 | pf = parity_table[(uint8_t)CC_DST]; | |
79 | af = 0; | |
80 | zf = ((DATA_TYPE)CC_DST != 0) << 6; | |
81 | sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; | |
82 | of = 0; | |
83 | return cf | pf | af | zf | sf | of; | |
84 | } | |
85 | ||
86 | static int glue(compute_c_logic, SUFFIX)(void) | |
87 | { | |
88 | return 0; | |
89 | } | |
90 | ||
91 | static int glue(compute_all_inc, SUFFIX)(void) | |
92 | { | |
93 | int cf, pf, af, zf, sf, of; | |
94 | int src1, src2; | |
95 | src1 = CC_DST - 1; | |
96 | src2 = 1; | |
97 | cf = CC_SRC; | |
98 | pf = parity_table[(uint8_t)CC_DST]; | |
99 | af = (CC_DST ^ src1 ^ src2) & 0x10; | |
100 | zf = ((DATA_TYPE)CC_DST != 0) << 6; | |
101 | sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; | |
102 | of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; | |
103 | return cf | pf | af | zf | sf | of; | |
104 | } | |
105 | ||
106 | static int glue(compute_c_inc, SUFFIX)(void) | |
107 | { | |
108 | return CC_SRC; | |
109 | } | |
110 | ||
111 | static int glue(compute_all_dec, SUFFIX)(void) | |
112 | { | |
113 | int cf, pf, af, zf, sf, of; | |
114 | int src1, src2; | |
115 | src1 = CC_DST + 1; | |
116 | src2 = 1; | |
117 | cf = CC_SRC; | |
118 | pf = parity_table[(uint8_t)CC_DST]; | |
119 | af = (CC_DST ^ src1 ^ src2) & 0x10; | |
120 | zf = ((DATA_TYPE)CC_DST != 0) << 6; | |
121 | sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; | |
122 | of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; | |
123 | return cf | pf | af | zf | sf | of; | |
124 | } | |
125 | ||
126 | static int glue(compute_all_shl, SUFFIX)(void) | |
127 | { | |
128 | int cf, pf, af, zf, sf, of; | |
129 | cf = CC_SRC & 1; | |
130 | pf = parity_table[(uint8_t)CC_DST]; | |
131 | af = 0; /* undefined */ | |
132 | zf = ((DATA_TYPE)CC_DST != 0) << 6; | |
133 | sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; | |
134 | of = sf << 4; /* only meaniful for shr with count == 1 */ | |
135 | return cf | pf | af | zf | sf | of; | |
136 | } | |
137 | ||
138 | static int glue(compute_c_shl, SUFFIX)(void) | |
139 | { | |
140 | return CC_SRC & 1; | |
141 | } | |
142 | ||
143 | /* various optimized jumps cases */ | |
144 | ||
145 | void OPPROTO glue(op_jb_sub, SUFFIX)(void) | |
146 | { | |
147 | int src1, src2; | |
148 | src1 = CC_SRC; | |
149 | src2 = CC_SRC - CC_DST; | |
150 | ||
151 | if ((DATA_TYPE)src1 < (DATA_TYPE)src2) | |
0ecfa993 | 152 | PC = PARAM1; |
367e86e8 | 153 | else |
0ecfa993 | 154 | PC = PARAM2; |
367e86e8 FB |
155 | FORCE_RET(); |
156 | } | |
157 | ||
158 | void OPPROTO glue(op_jz_sub, SUFFIX)(void) | |
159 | { | |
160 | if ((DATA_TYPE)CC_DST != 0) | |
0ecfa993 | 161 | PC = PARAM1; |
367e86e8 | 162 | else |
0ecfa993 | 163 | PC = PARAM2; |
367e86e8 FB |
164 | FORCE_RET(); |
165 | } | |
166 | ||
167 | void OPPROTO glue(op_jbe_sub, SUFFIX)(void) | |
168 | { | |
169 | int src1, src2; | |
170 | src1 = CC_SRC; | |
171 | src2 = CC_SRC - CC_DST; | |
172 | ||
173 | if ((DATA_TYPE)src1 <= (DATA_TYPE)src2) | |
0ecfa993 | 174 | PC = PARAM1; |
367e86e8 | 175 | else |
0ecfa993 | 176 | PC = PARAM2; |
367e86e8 FB |
177 | FORCE_RET(); |
178 | } | |
179 | ||
180 | void OPPROTO glue(op_js_sub, SUFFIX)(void) | |
181 | { | |
182 | if (CC_DST & SIGN_MASK) | |
0ecfa993 | 183 | PC = PARAM1; |
367e86e8 | 184 | else |
0ecfa993 | 185 | PC = PARAM2; |
367e86e8 FB |
186 | FORCE_RET(); |
187 | } | |
188 | ||
189 | void OPPROTO glue(op_jl_sub, SUFFIX)(void) | |
190 | { | |
191 | int src1, src2; | |
192 | src1 = CC_SRC; | |
193 | src2 = CC_SRC - CC_DST; | |
194 | ||
195 | if ((DATA_STYPE)src1 < (DATA_STYPE)src2) | |
0ecfa993 | 196 | PC = PARAM1; |
367e86e8 | 197 | else |
0ecfa993 | 198 | PC = PARAM2; |
367e86e8 FB |
199 | FORCE_RET(); |
200 | } | |
201 | ||
202 | void OPPROTO glue(op_jle_sub, SUFFIX)(void) | |
203 | { | |
204 | int src1, src2; | |
205 | src1 = CC_SRC; | |
206 | src2 = CC_SRC - CC_DST; | |
207 | ||
208 | if ((DATA_STYPE)src1 <= (DATA_STYPE)src2) | |
0ecfa993 | 209 | PC = PARAM1; |
367e86e8 | 210 | else |
0ecfa993 | 211 | PC = PARAM2; |
367e86e8 FB |
212 | FORCE_RET(); |
213 | } | |
214 | ||
215 | /* various optimized set cases */ | |
216 | ||
217 | void OPPROTO glue(op_setb_T0_sub, SUFFIX)(void) | |
218 | { | |
219 | int src1, src2; | |
220 | src1 = CC_SRC; | |
221 | src2 = CC_SRC - CC_DST; | |
222 | ||
223 | T0 = ((DATA_TYPE)src1 < (DATA_TYPE)src2); | |
224 | } | |
225 | ||
226 | void OPPROTO glue(op_setz_T0_sub, SUFFIX)(void) | |
227 | { | |
228 | T0 = ((DATA_TYPE)CC_DST != 0); | |
229 | } | |
230 | ||
231 | void OPPROTO glue(op_setbe_T0_sub, SUFFIX)(void) | |
232 | { | |
233 | int src1, src2; | |
234 | src1 = CC_SRC; | |
235 | src2 = CC_SRC - CC_DST; | |
236 | ||
237 | T0 = ((DATA_TYPE)src1 <= (DATA_TYPE)src2); | |
238 | } | |
239 | ||
240 | void OPPROTO glue(op_sets_T0_sub, SUFFIX)(void) | |
241 | { | |
242 | T0 = lshift(CC_DST, -(DATA_BITS - 1)) & 1; | |
243 | } | |
244 | ||
245 | void OPPROTO glue(op_setl_T0_sub, SUFFIX)(void) | |
246 | { | |
247 | int src1, src2; | |
248 | src1 = CC_SRC; | |
249 | src2 = CC_SRC - CC_DST; | |
250 | ||
251 | T0 = ((DATA_STYPE)src1 < (DATA_STYPE)src2); | |
252 | } | |
253 | ||
254 | void OPPROTO glue(op_setle_T0_sub, SUFFIX)(void) | |
255 | { | |
256 | int src1, src2; | |
257 | src1 = CC_SRC; | |
258 | src2 = CC_SRC - CC_DST; | |
259 | ||
260 | T0 = ((DATA_STYPE)src1 <= (DATA_STYPE)src2); | |
261 | } | |
262 | ||
263 | /* shifts */ | |
264 | ||
265 | void OPPROTO glue(glue(op_rol, SUFFIX), _T0_T1_cc)(void) | |
266 | { | |
267 | int count, src; | |
268 | count = T1 & SHIFT_MASK; | |
269 | if (count) { | |
270 | CC_SRC = cc_table[CC_OP].compute_all() & ~(CC_O | CC_C); | |
271 | src = T0; | |
272 | T0 &= DATA_MASK; | |
273 | T0 = (T0 << count) | (T0 >> (DATA_BITS - count)); | |
274 | CC_SRC |= (lshift(src ^ T0, 11 - (DATA_BITS - 1)) & CC_O) | | |
275 | (T0 & CC_C); | |
276 | CC_OP = CC_OP_EFLAGS; | |
277 | } | |
278 | } | |
279 | ||
280 | void OPPROTO glue(glue(op_ror, SUFFIX), _T0_T1_cc)(void) | |
281 | { | |
282 | int count, src; | |
283 | count = T1 & SHIFT_MASK; | |
284 | if (count) { | |
285 | CC_SRC = cc_table[CC_OP].compute_all() & ~(CC_O | CC_C); | |
286 | src = T0; | |
287 | T0 &= DATA_MASK; | |
288 | T0 = (T0 >> count) | (T0 << (DATA_BITS - count)); | |
289 | CC_SRC |= (lshift(src ^ T0, 11 - (DATA_BITS - 1)) & CC_O) | | |
290 | ((T0 >> (DATA_BITS - 1)) & CC_C); | |
291 | CC_OP = CC_OP_EFLAGS; | |
292 | } | |
293 | } | |
294 | ||
295 | void OPPROTO glue(glue(op_rcl, SUFFIX), _T0_T1_cc)(void) | |
296 | { | |
297 | int count, res, eflags; | |
298 | unsigned int src; | |
299 | ||
300 | count = T1 & 0x1f; | |
301 | #if DATA_BITS == 16 | |
302 | count = rclw_table[count]; | |
303 | #elif DATA_BITS == 8 | |
304 | count = rclb_table[count]; | |
305 | #endif | |
306 | if (count) { | |
307 | eflags = cc_table[CC_OP].compute_all(); | |
308 | src = T0; | |
309 | res = (T0 << count) | ((eflags & CC_C) << (count - 1)); | |
310 | if (count > 1) | |
311 | res |= T0 >> (DATA_BITS + 1 - count); | |
312 | T0 = res; | |
313 | CC_SRC = (eflags & ~(CC_C | CC_O)) | | |
314 | (lshift(src ^ T0, 11 - (DATA_BITS - 1)) & CC_O) | | |
315 | ((src >> (DATA_BITS - count)) & CC_C); | |
316 | CC_OP = CC_OP_EFLAGS; | |
317 | } | |
318 | } | |
319 | ||
320 | void OPPROTO glue(glue(op_rcr, SUFFIX), _T0_T1_cc)(void) | |
321 | { | |
322 | int count, res, eflags; | |
323 | unsigned int src; | |
324 | ||
325 | count = T1 & 0x1f; | |
326 | #if DATA_BITS == 16 | |
327 | count = rclw_table[count]; | |
328 | #elif DATA_BITS == 8 | |
329 | count = rclb_table[count]; | |
330 | #endif | |
331 | if (count) { | |
332 | eflags = cc_table[CC_OP].compute_all(); | |
333 | src = T0; | |
334 | res = (T0 >> count) | ((eflags & CC_C) << (DATA_BITS - count)); | |
335 | if (count > 1) | |
336 | res |= T0 << (DATA_BITS + 1 - count); | |
337 | T0 = res; | |
338 | CC_SRC = (eflags & ~(CC_C | CC_O)) | | |
339 | (lshift(src ^ T0, 11 - (DATA_BITS - 1)) & CC_O) | | |
340 | ((src >> (count - 1)) & CC_C); | |
341 | CC_OP = CC_OP_EFLAGS; | |
342 | } | |
343 | } | |
344 | ||
345 | void OPPROTO glue(glue(op_shl, SUFFIX), _T0_T1_cc)(void) | |
346 | { | |
347 | int count; | |
348 | count = T1 & 0x1f; | |
349 | if (count == 1) { | |
350 | CC_SRC = T0; | |
351 | T0 = T0 << 1; | |
352 | CC_DST = T0; | |
353 | CC_OP = CC_OP_ADDB + SHIFT; | |
354 | } else if (count) { | |
355 | CC_SRC = T0 >> (DATA_BITS - count); | |
356 | T0 = T0 << count; | |
357 | CC_DST = T0; | |
358 | CC_OP = CC_OP_SHLB + SHIFT; | |
359 | } | |
360 | } | |
361 | ||
362 | void OPPROTO glue(glue(op_shr, SUFFIX), _T0_T1_cc)(void) | |
363 | { | |
364 | int count; | |
365 | count = T1 & 0x1f; | |
366 | if (count) { | |
367 | T0 &= DATA_MASK; | |
368 | CC_SRC = T0 >> (count - 1); | |
369 | T0 = T0 >> count; | |
370 | CC_DST = T0; | |
371 | CC_OP = CC_OP_SHLB + SHIFT; | |
372 | } | |
373 | } | |
374 | ||
375 | void OPPROTO glue(glue(op_sar, SUFFIX), _T0_T1_cc)(void) | |
376 | { | |
377 | int count, src; | |
378 | count = T1 & 0x1f; | |
379 | if (count) { | |
380 | src = (DATA_STYPE)T0; | |
381 | CC_SRC = src >> (count - 1); | |
382 | T0 = src >> count; | |
383 | CC_DST = T0; | |
384 | CC_OP = CC_OP_SHLB + SHIFT; | |
385 | } | |
386 | } | |
387 | ||
388 | /* string operations */ | |
389 | /* XXX: maybe use lower level instructions to ease exception handling */ | |
390 | ||
391 | void OPPROTO glue(op_movs, SUFFIX)(void) | |
392 | { | |
393 | int v; | |
394 | v = glue(ldu, SUFFIX)((void *)ESI); | |
395 | glue(st, SUFFIX)((void *)EDI, v); | |
396 | ESI += (DF << SHIFT); | |
397 | EDI += (DF << SHIFT); | |
398 | } | |
399 | ||
400 | void OPPROTO glue(op_rep_movs, SUFFIX)(void) | |
401 | { | |
402 | int v, inc; | |
403 | inc = (DF << SHIFT); | |
404 | while (ECX != 0) { | |
405 | v = glue(ldu, SUFFIX)((void *)ESI); | |
406 | glue(st, SUFFIX)((void *)EDI, v); | |
407 | ESI += inc; | |
408 | EDI += inc; | |
409 | ECX--; | |
410 | } | |
411 | } | |
412 | ||
413 | void OPPROTO glue(op_stos, SUFFIX)(void) | |
414 | { | |
415 | glue(st, SUFFIX)((void *)EDI, EAX); | |
416 | EDI += (DF << SHIFT); | |
417 | } | |
418 | ||
419 | void OPPROTO glue(op_rep_stos, SUFFIX)(void) | |
420 | { | |
421 | int inc; | |
422 | inc = (DF << SHIFT); | |
423 | while (ECX != 0) { | |
424 | glue(st, SUFFIX)((void *)EDI, EAX); | |
425 | EDI += inc; | |
426 | ECX--; | |
427 | } | |
428 | } | |
429 | ||
430 | void OPPROTO glue(op_lods, SUFFIX)(void) | |
431 | { | |
432 | int v; | |
433 | v = glue(ldu, SUFFIX)((void *)ESI); | |
434 | #if SHIFT == 0 | |
435 | EAX = (EAX & ~0xff) | v; | |
436 | #elif SHIFT == 1 | |
437 | EAX = (EAX & ~0xffff) | v; | |
438 | #else | |
439 | EAX = v; | |
440 | #endif | |
441 | ESI += (DF << SHIFT); | |
442 | } | |
443 | ||
444 | /* don't know if it is used */ | |
445 | void OPPROTO glue(op_rep_lods, SUFFIX)(void) | |
446 | { | |
447 | int v, inc; | |
448 | inc = (DF << SHIFT); | |
449 | while (ECX != 0) { | |
450 | v = glue(ldu, SUFFIX)((void *)ESI); | |
451 | #if SHIFT == 0 | |
452 | EAX = (EAX & ~0xff) | v; | |
453 | #elif SHIFT == 1 | |
454 | EAX = (EAX & ~0xffff) | v; | |
455 | #else | |
456 | EAX = v; | |
457 | #endif | |
458 | ESI += inc; | |
459 | ECX--; | |
460 | } | |
461 | } | |
462 | ||
463 | void OPPROTO glue(op_scas, SUFFIX)(void) | |
464 | { | |
465 | int v; | |
466 | ||
467 | v = glue(ldu, SUFFIX)((void *)ESI); | |
468 | ESI += (DF << SHIFT); | |
469 | CC_SRC = EAX; | |
470 | CC_DST = EAX - v; | |
471 | } | |
472 | ||
473 | void OPPROTO glue(op_repz_scas, SUFFIX)(void) | |
474 | { | |
475 | int v1, v2, inc; | |
476 | ||
477 | if (ECX != 0) { | |
478 | /* NOTE: the flags are not modified if ECX == 0 */ | |
479 | #if SHIFT == 0 | |
480 | v1 = EAX & 0xff; | |
481 | #elif SHIFT == 1 | |
482 | v1 = EAX & 0xffff; | |
483 | #else | |
484 | v1 = EAX; | |
485 | #endif | |
486 | inc = (DF << SHIFT); | |
487 | do { | |
488 | v2 = glue(ldu, SUFFIX)((void *)ESI); | |
489 | if (v1 != v2) | |
490 | break; | |
491 | ESI += inc; | |
492 | ECX--; | |
493 | } while (ECX != 0); | |
494 | CC_SRC = v1; | |
495 | CC_DST = v1 - v2; | |
496 | CC_OP = CC_OP_SUBB + SHIFT; | |
497 | } | |
498 | } | |
499 | ||
500 | void OPPROTO glue(op_repnz_scas, SUFFIX)(void) | |
501 | { | |
502 | int v1, v2, inc; | |
503 | ||
504 | if (ECX != 0) { | |
505 | /* NOTE: the flags are not modified if ECX == 0 */ | |
506 | #if SHIFT == 0 | |
507 | v1 = EAX & 0xff; | |
508 | #elif SHIFT == 1 | |
509 | v1 = EAX & 0xffff; | |
510 | #else | |
511 | v1 = EAX; | |
512 | #endif | |
513 | inc = (DF << SHIFT); | |
514 | do { | |
515 | v2 = glue(ldu, SUFFIX)((void *)ESI); | |
516 | if (v1 == v2) | |
517 | break; | |
518 | ESI += inc; | |
519 | ECX--; | |
520 | } while (ECX != 0); | |
521 | CC_SRC = v1; | |
522 | CC_DST = v1 - v2; | |
523 | CC_OP = CC_OP_SUBB + SHIFT; | |
524 | } | |
525 | } | |
526 | ||
527 | void OPPROTO glue(op_cmps, SUFFIX)(void) | |
528 | { | |
529 | int v1, v2; | |
530 | v1 = glue(ldu, SUFFIX)((void *)ESI); | |
531 | v2 = glue(ldu, SUFFIX)((void *)EDI); | |
532 | ESI += (DF << SHIFT); | |
533 | EDI += (DF << SHIFT); | |
534 | CC_SRC = v1; | |
535 | CC_DST = v1 - v2; | |
536 | } | |
537 | ||
538 | void OPPROTO glue(op_repz_cmps, SUFFIX)(void) | |
539 | { | |
540 | int v1, v2, inc; | |
541 | if (ECX != 0) { | |
542 | inc = (DF << SHIFT); | |
543 | do { | |
544 | v1 = glue(ldu, SUFFIX)((void *)ESI); | |
545 | v2 = glue(ldu, SUFFIX)((void *)EDI); | |
546 | if (v1 != v2) | |
547 | break; | |
548 | ESI += inc; | |
549 | EDI += inc; | |
550 | ECX--; | |
551 | } while (ECX != 0); | |
552 | CC_SRC = v1; | |
553 | CC_DST = v1 - v2; | |
554 | CC_OP = CC_OP_SUBB + SHIFT; | |
555 | } | |
556 | } | |
557 | ||
558 | void OPPROTO glue(op_repnz_cmps, SUFFIX)(void) | |
559 | { | |
560 | int v1, v2, inc; | |
561 | if (ECX != 0) { | |
562 | inc = (DF << SHIFT); | |
563 | do { | |
564 | v1 = glue(ldu, SUFFIX)((void *)ESI); | |
565 | v2 = glue(ldu, SUFFIX)((void *)EDI); | |
566 | if (v1 == v2) | |
567 | break; | |
568 | ESI += inc; | |
569 | EDI += inc; | |
570 | ECX--; | |
571 | } while (ECX != 0); | |
572 | CC_SRC = v1; | |
573 | CC_DST = v1 - v2; | |
574 | CC_OP = CC_OP_SUBB + SHIFT; | |
575 | } | |
576 | } | |
577 | ||
ba1c6e37 FB |
578 | /* port I/O */ |
579 | ||
367e86e8 FB |
580 | void OPPROTO glue(op_outs, SUFFIX)(void) |
581 | { | |
582 | int v, dx; | |
583 | dx = EDX & 0xffff; | |
584 | v = glue(ldu, SUFFIX)((void *)ESI); | |
ba1c6e37 | 585 | glue(cpu_x86_out, SUFFIX)(dx, v); |
367e86e8 FB |
586 | ESI += (DF << SHIFT); |
587 | } | |
588 | ||
589 | void OPPROTO glue(op_rep_outs, SUFFIX)(void) | |
590 | { | |
591 | int v, dx, inc; | |
592 | inc = (DF << SHIFT); | |
593 | dx = EDX & 0xffff; | |
594 | while (ECX != 0) { | |
595 | v = glue(ldu, SUFFIX)((void *)ESI); | |
ba1c6e37 | 596 | glue(cpu_x86_out, SUFFIX)(dx, v); |
367e86e8 FB |
597 | ESI += inc; |
598 | ECX--; | |
599 | } | |
600 | } | |
601 | ||
602 | void OPPROTO glue(op_ins, SUFFIX)(void) | |
603 | { | |
604 | int v, dx; | |
605 | dx = EDX & 0xffff; | |
ba1c6e37 | 606 | v = glue(cpu_x86_in, SUFFIX)(dx); |
367e86e8 FB |
607 | glue(st, SUFFIX)((void *)EDI, v); |
608 | EDI += (DF << SHIFT); | |
609 | } | |
610 | ||
611 | void OPPROTO glue(op_rep_ins, SUFFIX)(void) | |
612 | { | |
613 | int v, dx, inc; | |
614 | inc = (DF << SHIFT); | |
615 | dx = EDX & 0xffff; | |
616 | while (ECX != 0) { | |
ba1c6e37 | 617 | v = glue(cpu_x86_in, SUFFIX)(dx); |
367e86e8 FB |
618 | glue(st, SUFFIX)((void *)EDI, v); |
619 | EDI += (DF << SHIFT); | |
620 | ECX--; | |
621 | } | |
622 | } | |
623 | ||
ba1c6e37 FB |
624 | void OPPROTO glue(glue(op_out, SUFFIX), _T0_T1)(void) |
625 | { | |
626 | glue(cpu_x86_out, SUFFIX)(T0 & 0xffff, T1 & DATA_MASK); | |
627 | } | |
628 | ||
629 | void OPPROTO glue(glue(op_in, SUFFIX), _T0_T1)(void) | |
630 | { | |
631 | T1 = glue(cpu_x86_in, SUFFIX)(T0 & 0xffff); | |
632 | } | |
633 | ||
367e86e8 FB |
634 | #undef DATA_BITS |
635 | #undef SHIFT_MASK | |
636 | #undef SIGN_MASK | |
637 | #undef DATA_TYPE | |
638 | #undef DATA_STYPE | |
639 | #undef DATA_MASK | |
640 | #undef SUFFIX |