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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; | |
4b74fe1f | 36 | zf = ((DATA_TYPE)CC_DST == 0) << 6; |
367e86e8 FB |
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 | ||
4b74fe1f FB |
50 | static int glue(compute_all_adc, SUFFIX)(void) |
51 | { | |
52 | int cf, pf, af, zf, sf, of; | |
53 | int src1, src2; | |
54 | src1 = CC_SRC; | |
55 | src2 = CC_DST - CC_SRC - 1; | |
56 | cf = (DATA_TYPE)CC_DST <= (DATA_TYPE)src1; | |
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_adc, SUFFIX)(void) | |
66 | { | |
67 | int src1, cf; | |
68 | src1 = CC_SRC; | |
69 | cf = (DATA_TYPE)CC_DST <= (DATA_TYPE)src1; | |
70 | return cf; | |
71 | } | |
72 | ||
367e86e8 FB |
73 | static int glue(compute_all_sub, SUFFIX)(void) |
74 | { | |
75 | int cf, pf, af, zf, sf, of; | |
76 | int src1, src2; | |
77 | src1 = CC_SRC; | |
78 | src2 = CC_SRC - CC_DST; | |
79 | cf = (DATA_TYPE)src1 < (DATA_TYPE)src2; | |
80 | pf = parity_table[(uint8_t)CC_DST]; | |
81 | af = (CC_DST ^ src1 ^ src2) & 0x10; | |
4b74fe1f | 82 | zf = ((DATA_TYPE)CC_DST == 0) << 6; |
367e86e8 | 83 | sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
4b74fe1f | 84 | of = lshift((src1 ^ src2) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; |
367e86e8 FB |
85 | return cf | pf | af | zf | sf | of; |
86 | } | |
87 | ||
88 | static int glue(compute_c_sub, SUFFIX)(void) | |
89 | { | |
90 | int src1, src2, cf; | |
91 | src1 = CC_SRC; | |
92 | src2 = CC_SRC - CC_DST; | |
4b74fe1f FB |
93 | cf = (DATA_TYPE)src1 < (DATA_TYPE)src2; |
94 | return cf; | |
95 | } | |
96 | ||
97 | static int glue(compute_all_sbb, SUFFIX)(void) | |
98 | { | |
99 | int cf, pf, af, zf, sf, of; | |
100 | int src1, src2; | |
101 | src1 = CC_SRC; | |
102 | src2 = CC_SRC - CC_DST - 1; | |
103 | cf = (DATA_TYPE)src1 <= (DATA_TYPE)src2; | |
104 | pf = parity_table[(uint8_t)CC_DST]; | |
105 | af = (CC_DST ^ src1 ^ src2) & 0x10; | |
106 | zf = ((DATA_TYPE)CC_DST == 0) << 6; | |
107 | sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; | |
108 | of = lshift((src1 ^ src2) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; | |
109 | return cf | pf | af | zf | sf | of; | |
110 | } | |
111 | ||
112 | static int glue(compute_c_sbb, SUFFIX)(void) | |
113 | { | |
114 | int src1, src2, cf; | |
115 | src1 = CC_SRC; | |
116 | src2 = CC_SRC - CC_DST - 1; | |
117 | cf = (DATA_TYPE)src1 <= (DATA_TYPE)src2; | |
367e86e8 FB |
118 | return cf; |
119 | } | |
120 | ||
121 | static int glue(compute_all_logic, SUFFIX)(void) | |
122 | { | |
123 | int cf, pf, af, zf, sf, of; | |
124 | cf = 0; | |
125 | pf = parity_table[(uint8_t)CC_DST]; | |
126 | af = 0; | |
4b74fe1f | 127 | zf = ((DATA_TYPE)CC_DST == 0) << 6; |
367e86e8 FB |
128 | sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
129 | of = 0; | |
130 | return cf | pf | af | zf | sf | of; | |
131 | } | |
132 | ||
133 | static int glue(compute_c_logic, SUFFIX)(void) | |
134 | { | |
135 | return 0; | |
136 | } | |
137 | ||
138 | static int glue(compute_all_inc, SUFFIX)(void) | |
139 | { | |
140 | int cf, pf, af, zf, sf, of; | |
141 | int src1, src2; | |
142 | src1 = CC_DST - 1; | |
143 | src2 = 1; | |
144 | cf = CC_SRC; | |
145 | pf = parity_table[(uint8_t)CC_DST]; | |
146 | af = (CC_DST ^ src1 ^ src2) & 0x10; | |
4b74fe1f | 147 | zf = ((DATA_TYPE)CC_DST == 0) << 6; |
367e86e8 | 148 | sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
4b74fe1f | 149 | of = ((CC_DST & DATA_MASK) == SIGN_MASK) << 11; |
367e86e8 FB |
150 | return cf | pf | af | zf | sf | of; |
151 | } | |
152 | ||
4b74fe1f | 153 | #if DATA_BITS == 32 |
367e86e8 FB |
154 | static int glue(compute_c_inc, SUFFIX)(void) |
155 | { | |
156 | return CC_SRC; | |
157 | } | |
4b74fe1f | 158 | #endif |
367e86e8 FB |
159 | |
160 | static int glue(compute_all_dec, SUFFIX)(void) | |
161 | { | |
162 | int cf, pf, af, zf, sf, of; | |
163 | int src1, src2; | |
164 | src1 = CC_DST + 1; | |
165 | src2 = 1; | |
166 | cf = CC_SRC; | |
167 | pf = parity_table[(uint8_t)CC_DST]; | |
168 | af = (CC_DST ^ src1 ^ src2) & 0x10; | |
4b74fe1f | 169 | zf = ((DATA_TYPE)CC_DST == 0) << 6; |
367e86e8 | 170 | sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
4b74fe1f | 171 | of = ((CC_DST & DATA_MASK) == ((uint32_t)SIGN_MASK - 1)) << 11; |
367e86e8 FB |
172 | return cf | pf | af | zf | sf | of; |
173 | } | |
174 | ||
175 | static int glue(compute_all_shl, SUFFIX)(void) | |
176 | { | |
177 | int cf, pf, af, zf, sf, of; | |
d57c4e01 | 178 | cf = (CC_SRC >> (DATA_BITS - 1)) & CC_C; |
367e86e8 FB |
179 | pf = parity_table[(uint8_t)CC_DST]; |
180 | af = 0; /* undefined */ | |
4b74fe1f | 181 | zf = ((DATA_TYPE)CC_DST == 0) << 6; |
367e86e8 | 182 | sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
d57c4e01 FB |
183 | /* of is defined if shift count == 1 */ |
184 | of = lshift(CC_SRC ^ CC_DST, 12 - DATA_BITS) & CC_O; | |
367e86e8 FB |
185 | return cf | pf | af | zf | sf | of; |
186 | } | |
187 | ||
4b74fe1f | 188 | #if DATA_BITS == 32 |
367e86e8 FB |
189 | static int glue(compute_c_shl, SUFFIX)(void) |
190 | { | |
191 | return CC_SRC & 1; | |
192 | } | |
4b74fe1f FB |
193 | #endif |
194 | ||
195 | static int glue(compute_all_sar, SUFFIX)(void) | |
196 | { | |
197 | int cf, pf, af, zf, sf, of; | |
198 | cf = CC_SRC & 1; | |
199 | pf = parity_table[(uint8_t)CC_DST]; | |
200 | af = 0; /* undefined */ | |
201 | zf = ((DATA_TYPE)CC_DST == 0) << 6; | |
202 | sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; | |
d57c4e01 FB |
203 | /* of is defined if shift count == 1 */ |
204 | of = lshift(CC_SRC ^ CC_DST, 12 - DATA_BITS) & CC_O; | |
4b74fe1f FB |
205 | return cf | pf | af | zf | sf | of; |
206 | } | |
367e86e8 FB |
207 | |
208 | /* various optimized jumps cases */ | |
209 | ||
210 | void OPPROTO glue(op_jb_sub, SUFFIX)(void) | |
211 | { | |
212 | int src1, src2; | |
213 | src1 = CC_SRC; | |
214 | src2 = CC_SRC - CC_DST; | |
215 | ||
216 | if ((DATA_TYPE)src1 < (DATA_TYPE)src2) | |
0ecfa993 | 217 | PC = PARAM1; |
367e86e8 | 218 | else |
0ecfa993 | 219 | PC = PARAM2; |
367e86e8 FB |
220 | FORCE_RET(); |
221 | } | |
222 | ||
223 | void OPPROTO glue(op_jz_sub, SUFFIX)(void) | |
224 | { | |
4b74fe1f | 225 | if ((DATA_TYPE)CC_DST == 0) |
0ecfa993 | 226 | PC = PARAM1; |
367e86e8 | 227 | else |
0ecfa993 | 228 | PC = PARAM2; |
367e86e8 FB |
229 | FORCE_RET(); |
230 | } | |
231 | ||
232 | void OPPROTO glue(op_jbe_sub, SUFFIX)(void) | |
233 | { | |
234 | int src1, src2; | |
235 | src1 = CC_SRC; | |
236 | src2 = CC_SRC - CC_DST; | |
237 | ||
238 | if ((DATA_TYPE)src1 <= (DATA_TYPE)src2) | |
0ecfa993 | 239 | PC = PARAM1; |
367e86e8 | 240 | else |
0ecfa993 | 241 | PC = PARAM2; |
367e86e8 FB |
242 | FORCE_RET(); |
243 | } | |
244 | ||
245 | void OPPROTO glue(op_js_sub, SUFFIX)(void) | |
246 | { | |
247 | if (CC_DST & SIGN_MASK) | |
0ecfa993 | 248 | PC = PARAM1; |
367e86e8 | 249 | else |
0ecfa993 | 250 | PC = PARAM2; |
367e86e8 FB |
251 | FORCE_RET(); |
252 | } | |
253 | ||
254 | void OPPROTO glue(op_jl_sub, SUFFIX)(void) | |
255 | { | |
256 | int src1, src2; | |
257 | src1 = CC_SRC; | |
258 | src2 = CC_SRC - CC_DST; | |
259 | ||
260 | if ((DATA_STYPE)src1 < (DATA_STYPE)src2) | |
0ecfa993 | 261 | PC = PARAM1; |
367e86e8 | 262 | else |
0ecfa993 | 263 | PC = PARAM2; |
367e86e8 FB |
264 | FORCE_RET(); |
265 | } | |
266 | ||
267 | void OPPROTO glue(op_jle_sub, SUFFIX)(void) | |
268 | { | |
269 | int src1, src2; | |
270 | src1 = CC_SRC; | |
271 | src2 = CC_SRC - CC_DST; | |
272 | ||
273 | if ((DATA_STYPE)src1 <= (DATA_STYPE)src2) | |
0ecfa993 | 274 | PC = PARAM1; |
367e86e8 | 275 | else |
0ecfa993 | 276 | PC = PARAM2; |
367e86e8 FB |
277 | FORCE_RET(); |
278 | } | |
279 | ||
1a9353d2 FB |
280 | /* oldies */ |
281 | ||
282 | #if DATA_BITS >= 16 | |
283 | ||
284 | void OPPROTO glue(op_loopnz, SUFFIX)(void) | |
285 | { | |
286 | unsigned int tmp; | |
287 | int eflags; | |
288 | eflags = cc_table[CC_OP].compute_all(); | |
289 | tmp = (ECX - 1) & DATA_MASK; | |
290 | ECX = (ECX & ~DATA_MASK) | tmp; | |
291 | if (tmp != 0 && !(eflags & CC_Z)) | |
292 | PC = PARAM1; | |
293 | else | |
294 | PC = PARAM2; | |
295 | FORCE_RET(); | |
296 | } | |
297 | ||
298 | void OPPROTO glue(op_loopz, SUFFIX)(void) | |
299 | { | |
300 | unsigned int tmp; | |
301 | int eflags; | |
302 | eflags = cc_table[CC_OP].compute_all(); | |
303 | tmp = (ECX - 1) & DATA_MASK; | |
304 | ECX = (ECX & ~DATA_MASK) | tmp; | |
305 | if (tmp != 0 && (eflags & CC_Z)) | |
306 | PC = PARAM1; | |
307 | else | |
308 | PC = PARAM2; | |
309 | FORCE_RET(); | |
310 | } | |
311 | ||
312 | void OPPROTO glue(op_loop, SUFFIX)(void) | |
313 | { | |
314 | unsigned int tmp; | |
315 | tmp = (ECX - 1) & DATA_MASK; | |
316 | ECX = (ECX & ~DATA_MASK) | tmp; | |
317 | if (tmp != 0) | |
318 | PC = PARAM1; | |
319 | else | |
320 | PC = PARAM2; | |
321 | FORCE_RET(); | |
322 | } | |
323 | ||
324 | void OPPROTO glue(op_jecxz, SUFFIX)(void) | |
325 | { | |
326 | if ((DATA_TYPE)ECX == 0) | |
327 | PC = PARAM1; | |
328 | else | |
329 | PC = PARAM2; | |
330 | FORCE_RET(); | |
331 | } | |
332 | ||
333 | #endif | |
334 | ||
367e86e8 FB |
335 | /* various optimized set cases */ |
336 | ||
337 | void OPPROTO glue(op_setb_T0_sub, SUFFIX)(void) | |
338 | { | |
339 | int src1, src2; | |
340 | src1 = CC_SRC; | |
341 | src2 = CC_SRC - CC_DST; | |
342 | ||
343 | T0 = ((DATA_TYPE)src1 < (DATA_TYPE)src2); | |
344 | } | |
345 | ||
346 | void OPPROTO glue(op_setz_T0_sub, SUFFIX)(void) | |
347 | { | |
4b74fe1f | 348 | T0 = ((DATA_TYPE)CC_DST == 0); |
367e86e8 FB |
349 | } |
350 | ||
351 | void OPPROTO glue(op_setbe_T0_sub, SUFFIX)(void) | |
352 | { | |
353 | int src1, src2; | |
354 | src1 = CC_SRC; | |
355 | src2 = CC_SRC - CC_DST; | |
356 | ||
357 | T0 = ((DATA_TYPE)src1 <= (DATA_TYPE)src2); | |
358 | } | |
359 | ||
360 | void OPPROTO glue(op_sets_T0_sub, SUFFIX)(void) | |
361 | { | |
362 | T0 = lshift(CC_DST, -(DATA_BITS - 1)) & 1; | |
363 | } | |
364 | ||
365 | void OPPROTO glue(op_setl_T0_sub, SUFFIX)(void) | |
366 | { | |
367 | int src1, src2; | |
368 | src1 = CC_SRC; | |
369 | src2 = CC_SRC - CC_DST; | |
370 | ||
371 | T0 = ((DATA_STYPE)src1 < (DATA_STYPE)src2); | |
372 | } | |
373 | ||
374 | void OPPROTO glue(op_setle_T0_sub, SUFFIX)(void) | |
375 | { | |
376 | int src1, src2; | |
377 | src1 = CC_SRC; | |
378 | src2 = CC_SRC - CC_DST; | |
379 | ||
380 | T0 = ((DATA_STYPE)src1 <= (DATA_STYPE)src2); | |
381 | } | |
382 | ||
383 | /* shifts */ | |
384 | ||
385 | void OPPROTO glue(glue(op_rol, SUFFIX), _T0_T1_cc)(void) | |
386 | { | |
387 | int count, src; | |
388 | count = T1 & SHIFT_MASK; | |
389 | if (count) { | |
390 | CC_SRC = cc_table[CC_OP].compute_all() & ~(CC_O | CC_C); | |
391 | src = T0; | |
392 | T0 &= DATA_MASK; | |
393 | T0 = (T0 << count) | (T0 >> (DATA_BITS - count)); | |
394 | CC_SRC |= (lshift(src ^ T0, 11 - (DATA_BITS - 1)) & CC_O) | | |
395 | (T0 & CC_C); | |
396 | CC_OP = CC_OP_EFLAGS; | |
397 | } | |
4b74fe1f | 398 | FORCE_RET(); |
367e86e8 FB |
399 | } |
400 | ||
dc99065b FB |
401 | void OPPROTO glue(glue(op_rol, SUFFIX), _T0_T1)(void) |
402 | { | |
403 | int count; | |
404 | count = T1 & SHIFT_MASK; | |
405 | if (count) { | |
406 | T0 &= DATA_MASK; | |
407 | T0 = (T0 << count) | (T0 >> (DATA_BITS - count)); | |
408 | } | |
409 | FORCE_RET(); | |
410 | } | |
411 | ||
367e86e8 FB |
412 | void OPPROTO glue(glue(op_ror, SUFFIX), _T0_T1_cc)(void) |
413 | { | |
414 | int count, src; | |
415 | count = T1 & SHIFT_MASK; | |
416 | if (count) { | |
417 | CC_SRC = cc_table[CC_OP].compute_all() & ~(CC_O | CC_C); | |
418 | src = T0; | |
419 | T0 &= DATA_MASK; | |
420 | T0 = (T0 >> count) | (T0 << (DATA_BITS - count)); | |
421 | CC_SRC |= (lshift(src ^ T0, 11 - (DATA_BITS - 1)) & CC_O) | | |
422 | ((T0 >> (DATA_BITS - 1)) & CC_C); | |
423 | CC_OP = CC_OP_EFLAGS; | |
424 | } | |
4b74fe1f | 425 | FORCE_RET(); |
367e86e8 FB |
426 | } |
427 | ||
dc99065b FB |
428 | void OPPROTO glue(glue(op_ror, SUFFIX), _T0_T1)(void) |
429 | { | |
430 | int count; | |
431 | count = T1 & SHIFT_MASK; | |
432 | if (count) { | |
433 | T0 &= DATA_MASK; | |
434 | T0 = (T0 >> count) | (T0 << (DATA_BITS - count)); | |
435 | } | |
436 | FORCE_RET(); | |
437 | } | |
438 | ||
367e86e8 FB |
439 | void OPPROTO glue(glue(op_rcl, SUFFIX), _T0_T1_cc)(void) |
440 | { | |
441 | int count, res, eflags; | |
442 | unsigned int src; | |
443 | ||
444 | count = T1 & 0x1f; | |
445 | #if DATA_BITS == 16 | |
446 | count = rclw_table[count]; | |
447 | #elif DATA_BITS == 8 | |
448 | count = rclb_table[count]; | |
449 | #endif | |
450 | if (count) { | |
451 | eflags = cc_table[CC_OP].compute_all(); | |
4b74fe1f | 452 | T0 &= DATA_MASK; |
367e86e8 FB |
453 | src = T0; |
454 | res = (T0 << count) | ((eflags & CC_C) << (count - 1)); | |
455 | if (count > 1) | |
456 | res |= T0 >> (DATA_BITS + 1 - count); | |
457 | T0 = res; | |
458 | CC_SRC = (eflags & ~(CC_C | CC_O)) | | |
459 | (lshift(src ^ T0, 11 - (DATA_BITS - 1)) & CC_O) | | |
460 | ((src >> (DATA_BITS - count)) & CC_C); | |
461 | CC_OP = CC_OP_EFLAGS; | |
462 | } | |
4b74fe1f | 463 | FORCE_RET(); |
367e86e8 FB |
464 | } |
465 | ||
466 | void OPPROTO glue(glue(op_rcr, SUFFIX), _T0_T1_cc)(void) | |
467 | { | |
468 | int count, res, eflags; | |
469 | unsigned int src; | |
470 | ||
471 | count = T1 & 0x1f; | |
472 | #if DATA_BITS == 16 | |
473 | count = rclw_table[count]; | |
474 | #elif DATA_BITS == 8 | |
475 | count = rclb_table[count]; | |
476 | #endif | |
477 | if (count) { | |
478 | eflags = cc_table[CC_OP].compute_all(); | |
4b74fe1f | 479 | T0 &= DATA_MASK; |
367e86e8 FB |
480 | src = T0; |
481 | res = (T0 >> count) | ((eflags & CC_C) << (DATA_BITS - count)); | |
482 | if (count > 1) | |
483 | res |= T0 << (DATA_BITS + 1 - count); | |
484 | T0 = res; | |
485 | CC_SRC = (eflags & ~(CC_C | CC_O)) | | |
486 | (lshift(src ^ T0, 11 - (DATA_BITS - 1)) & CC_O) | | |
487 | ((src >> (count - 1)) & CC_C); | |
488 | CC_OP = CC_OP_EFLAGS; | |
489 | } | |
4b74fe1f | 490 | FORCE_RET(); |
367e86e8 FB |
491 | } |
492 | ||
493 | void OPPROTO glue(glue(op_shl, SUFFIX), _T0_T1_cc)(void) | |
494 | { | |
495 | int count; | |
496 | count = T1 & 0x1f; | |
d57c4e01 FB |
497 | if (count) { |
498 | CC_SRC = (DATA_TYPE)T0 << (count - 1); | |
367e86e8 FB |
499 | T0 = T0 << count; |
500 | CC_DST = T0; | |
501 | CC_OP = CC_OP_SHLB + SHIFT; | |
502 | } | |
4b74fe1f | 503 | FORCE_RET(); |
367e86e8 FB |
504 | } |
505 | ||
dc99065b FB |
506 | void OPPROTO glue(glue(op_shl, SUFFIX), _T0_T1)(void) |
507 | { | |
508 | int count; | |
509 | count = T1 & 0x1f; | |
510 | T0 = T0 << count; | |
511 | FORCE_RET(); | |
512 | } | |
513 | ||
367e86e8 FB |
514 | void OPPROTO glue(glue(op_shr, SUFFIX), _T0_T1_cc)(void) |
515 | { | |
516 | int count; | |
517 | count = T1 & 0x1f; | |
518 | if (count) { | |
519 | T0 &= DATA_MASK; | |
520 | CC_SRC = T0 >> (count - 1); | |
521 | T0 = T0 >> count; | |
522 | CC_DST = T0; | |
d57c4e01 | 523 | CC_OP = CC_OP_SARB + SHIFT; |
367e86e8 | 524 | } |
4b74fe1f | 525 | FORCE_RET(); |
367e86e8 FB |
526 | } |
527 | ||
dc99065b FB |
528 | void OPPROTO glue(glue(op_shr, SUFFIX), _T0_T1)(void) |
529 | { | |
530 | int count; | |
531 | count = T1 & 0x1f; | |
532 | T0 &= DATA_MASK; | |
533 | T0 = T0 >> count; | |
534 | FORCE_RET(); | |
535 | } | |
536 | ||
367e86e8 FB |
537 | void OPPROTO glue(glue(op_sar, SUFFIX), _T0_T1_cc)(void) |
538 | { | |
539 | int count, src; | |
540 | count = T1 & 0x1f; | |
541 | if (count) { | |
542 | src = (DATA_STYPE)T0; | |
d57c4e01 | 543 | CC_SRC = src >> (count - 1); |
367e86e8 FB |
544 | T0 = src >> count; |
545 | CC_DST = T0; | |
4b74fe1f | 546 | CC_OP = CC_OP_SARB + SHIFT; |
367e86e8 | 547 | } |
4b74fe1f | 548 | FORCE_RET(); |
367e86e8 FB |
549 | } |
550 | ||
dc99065b FB |
551 | void OPPROTO glue(glue(op_sar, SUFFIX), _T0_T1)(void) |
552 | { | |
553 | int count, src; | |
554 | count = T1 & 0x1f; | |
555 | src = (DATA_STYPE)T0; | |
556 | T0 = src >> count; | |
557 | FORCE_RET(); | |
558 | } | |
559 | ||
d57c4e01 FB |
560 | #if DATA_BITS == 16 |
561 | /* XXX: overflow flag might be incorrect in some cases in shldw */ | |
562 | void OPPROTO glue(glue(op_shld, SUFFIX), _T0_T1_im_cc)(void) | |
563 | { | |
564 | int count; | |
565 | unsigned int res; | |
566 | count = PARAM1; | |
567 | T1 &= 0xffff; | |
568 | res = T1 | (T0 << 16); | |
569 | CC_SRC = res >> (32 - count); | |
570 | res <<= count; | |
571 | if (count > 16) | |
572 | res |= T1 << (count - 16); | |
573 | T0 = res >> 16; | |
574 | CC_DST = T0; | |
575 | } | |
576 | ||
577 | void OPPROTO glue(glue(op_shld, SUFFIX), _T0_T1_ECX_cc)(void) | |
578 | { | |
579 | int count; | |
580 | unsigned int res; | |
581 | count = ECX & 0x1f; | |
582 | if (count) { | |
583 | T1 &= 0xffff; | |
584 | res = T1 | (T0 << 16); | |
585 | CC_SRC = res >> (32 - count); | |
586 | res <<= count; | |
587 | if (count > 16) | |
588 | res |= T1 << (count - 16); | |
589 | T0 = res >> 16; | |
590 | CC_DST = T0; | |
591 | CC_OP = CC_OP_SARB + SHIFT; | |
592 | } | |
593 | } | |
594 | ||
595 | void OPPROTO glue(glue(op_shrd, SUFFIX), _T0_T1_im_cc)(void) | |
596 | { | |
597 | int count; | |
598 | unsigned int res; | |
599 | ||
600 | count = PARAM1; | |
601 | res = (T0 & 0xffff) | (T1 << 16); | |
602 | CC_SRC = res >> (count - 1); | |
603 | res >>= count; | |
604 | if (count > 16) | |
605 | res |= T1 << (32 - count); | |
606 | T0 = res; | |
607 | CC_DST = T0; | |
608 | } | |
609 | ||
610 | ||
611 | void OPPROTO glue(glue(op_shrd, SUFFIX), _T0_T1_ECX_cc)(void) | |
612 | { | |
613 | int count; | |
614 | unsigned int res; | |
615 | ||
616 | count = ECX & 0x1f; | |
617 | if (count) { | |
618 | res = (T0 & 0xffff) | (T1 << 16); | |
619 | CC_SRC = res >> (count - 1); | |
620 | res >>= count; | |
621 | if (count > 16) | |
622 | res |= T1 << (32 - count); | |
623 | T0 = res; | |
624 | CC_DST = T0; | |
625 | CC_OP = CC_OP_SARB + SHIFT; | |
626 | } | |
627 | } | |
628 | #endif | |
629 | ||
630 | #if DATA_BITS == 32 | |
631 | void OPPROTO glue(glue(op_shld, SUFFIX), _T0_T1_im_cc)(void) | |
632 | { | |
633 | int count; | |
634 | count = PARAM1; | |
635 | T0 &= DATA_MASK; | |
636 | T1 &= DATA_MASK; | |
637 | CC_SRC = T0 << (count - 1); | |
638 | T0 = (T0 << count) | (T1 >> (DATA_BITS - count)); | |
639 | CC_DST = T0; | |
640 | } | |
641 | ||
642 | void OPPROTO glue(glue(op_shld, SUFFIX), _T0_T1_ECX_cc)(void) | |
643 | { | |
644 | int count; | |
645 | count = ECX & 0x1f; | |
646 | if (count) { | |
647 | T0 &= DATA_MASK; | |
648 | T1 &= DATA_MASK; | |
649 | CC_SRC = T0 << (count - 1); | |
650 | T0 = (T0 << count) | (T1 >> (DATA_BITS - count)); | |
651 | CC_DST = T0; | |
652 | CC_OP = CC_OP_SHLB + SHIFT; | |
653 | } | |
654 | } | |
655 | ||
656 | void OPPROTO glue(glue(op_shrd, SUFFIX), _T0_T1_im_cc)(void) | |
657 | { | |
658 | int count; | |
659 | count = PARAM1; | |
660 | T0 &= DATA_MASK; | |
661 | T1 &= DATA_MASK; | |
662 | CC_SRC = T0 >> (count - 1); | |
663 | T0 = (T0 >> count) | (T1 << (DATA_BITS - count)); | |
664 | CC_DST = T0; | |
665 | } | |
666 | ||
667 | ||
668 | void OPPROTO glue(glue(op_shrd, SUFFIX), _T0_T1_ECX_cc)(void) | |
669 | { | |
670 | int count; | |
671 | count = ECX & 0x1f; | |
672 | if (count) { | |
673 | T0 &= DATA_MASK; | |
674 | T1 &= DATA_MASK; | |
675 | CC_SRC = T0 >> (count - 1); | |
676 | T0 = (T0 >> count) | (T1 << (DATA_BITS - count)); | |
677 | CC_DST = T0; | |
678 | CC_OP = CC_OP_SARB + SHIFT; | |
679 | } | |
680 | } | |
681 | #endif | |
682 | ||
4b74fe1f FB |
683 | /* carry add/sub (we only need to set CC_OP differently) */ |
684 | ||
685 | void OPPROTO glue(glue(op_adc, SUFFIX), _T0_T1_cc)(void) | |
686 | { | |
687 | int cf; | |
688 | cf = cc_table[CC_OP].compute_c(); | |
689 | CC_SRC = T0; | |
690 | T0 = T0 + T1 + cf; | |
691 | CC_DST = T0; | |
692 | CC_OP = CC_OP_ADDB + SHIFT + cf * 3; | |
693 | } | |
694 | ||
695 | void OPPROTO glue(glue(op_sbb, SUFFIX), _T0_T1_cc)(void) | |
696 | { | |
697 | int cf; | |
698 | cf = cc_table[CC_OP].compute_c(); | |
699 | CC_SRC = T0; | |
700 | T0 = T0 - T1 - cf; | |
701 | CC_DST = T0; | |
702 | CC_OP = CC_OP_SUBB + SHIFT + cf * 3; | |
703 | } | |
704 | ||
1a9353d2 FB |
705 | void OPPROTO glue(glue(op_cmpxchg, SUFFIX), _T0_T1_EAX_cc)(void) |
706 | { | |
707 | CC_SRC = EAX; | |
708 | CC_DST = EAX - T0; | |
709 | if ((DATA_TYPE)CC_DST == 0) { | |
710 | T0 = T1; | |
711 | } else { | |
712 | EAX = (EAX & ~DATA_MASK) | (T0 & DATA_MASK); | |
713 | } | |
714 | FORCE_RET(); | |
715 | } | |
716 | ||
4b74fe1f FB |
717 | /* bit operations */ |
718 | #if DATA_BITS >= 16 | |
719 | ||
720 | void OPPROTO glue(glue(op_bt, SUFFIX), _T0_T1_cc)(void) | |
721 | { | |
722 | int count; | |
723 | count = T1 & SHIFT_MASK; | |
724 | CC_SRC = T0 >> count; | |
725 | } | |
726 | ||
727 | void OPPROTO glue(glue(op_bts, SUFFIX), _T0_T1_cc)(void) | |
728 | { | |
729 | int count; | |
730 | count = T1 & SHIFT_MASK; | |
731 | CC_SRC = T0 >> count; | |
732 | T0 |= (1 << count); | |
733 | } | |
734 | ||
735 | void OPPROTO glue(glue(op_btr, SUFFIX), _T0_T1_cc)(void) | |
736 | { | |
737 | int count; | |
738 | count = T1 & SHIFT_MASK; | |
739 | CC_SRC = T0 >> count; | |
740 | T0 &= ~(1 << count); | |
741 | } | |
742 | ||
743 | void OPPROTO glue(glue(op_btc, SUFFIX), _T0_T1_cc)(void) | |
744 | { | |
745 | int count; | |
746 | count = T1 & SHIFT_MASK; | |
747 | CC_SRC = T0 >> count; | |
748 | T0 ^= (1 << count); | |
749 | } | |
750 | ||
77f8dd5a FB |
751 | void OPPROTO glue(glue(op_bsf, SUFFIX), _T0_cc)(void) |
752 | { | |
753 | int res, count; | |
754 | res = T0 & DATA_MASK; | |
755 | if (res != 0) { | |
756 | count = 0; | |
757 | while ((res & 1) == 0) { | |
758 | count++; | |
759 | res >>= 1; | |
760 | } | |
761 | T0 = count; | |
762 | CC_DST = 1; /* ZF = 1 */ | |
763 | } else { | |
764 | CC_DST = 0; /* ZF = 1 */ | |
765 | } | |
766 | FORCE_RET(); | |
767 | } | |
768 | ||
769 | void OPPROTO glue(glue(op_bsr, SUFFIX), _T0_cc)(void) | |
770 | { | |
771 | int res, count; | |
772 | res = T0 & DATA_MASK; | |
773 | if (res != 0) { | |
774 | count = DATA_BITS - 1; | |
775 | while ((res & SIGN_MASK) == 0) { | |
776 | count--; | |
777 | res <<= 1; | |
778 | } | |
779 | T0 = count; | |
780 | CC_DST = 1; /* ZF = 1 */ | |
781 | } else { | |
782 | CC_DST = 0; /* ZF = 1 */ | |
783 | } | |
784 | FORCE_RET(); | |
785 | } | |
786 | ||
4b74fe1f FB |
787 | #endif |
788 | ||
367e86e8 FB |
789 | /* string operations */ |
790 | /* XXX: maybe use lower level instructions to ease exception handling */ | |
791 | ||
792 | void OPPROTO glue(op_movs, SUFFIX)(void) | |
793 | { | |
794 | int v; | |
795 | v = glue(ldu, SUFFIX)((void *)ESI); | |
796 | glue(st, SUFFIX)((void *)EDI, v); | |
797 | ESI += (DF << SHIFT); | |
798 | EDI += (DF << SHIFT); | |
799 | } | |
800 | ||
801 | void OPPROTO glue(op_rep_movs, SUFFIX)(void) | |
802 | { | |
803 | int v, inc; | |
804 | inc = (DF << SHIFT); | |
805 | while (ECX != 0) { | |
806 | v = glue(ldu, SUFFIX)((void *)ESI); | |
807 | glue(st, SUFFIX)((void *)EDI, v); | |
808 | ESI += inc; | |
809 | EDI += inc; | |
810 | ECX--; | |
811 | } | |
812 | } | |
813 | ||
814 | void OPPROTO glue(op_stos, SUFFIX)(void) | |
815 | { | |
816 | glue(st, SUFFIX)((void *)EDI, EAX); | |
817 | EDI += (DF << SHIFT); | |
818 | } | |
819 | ||
820 | void OPPROTO glue(op_rep_stos, SUFFIX)(void) | |
821 | { | |
822 | int inc; | |
823 | inc = (DF << SHIFT); | |
824 | while (ECX != 0) { | |
825 | glue(st, SUFFIX)((void *)EDI, EAX); | |
826 | EDI += inc; | |
827 | ECX--; | |
828 | } | |
829 | } | |
830 | ||
831 | void OPPROTO glue(op_lods, SUFFIX)(void) | |
832 | { | |
833 | int v; | |
834 | v = glue(ldu, SUFFIX)((void *)ESI); | |
835 | #if SHIFT == 0 | |
836 | EAX = (EAX & ~0xff) | v; | |
837 | #elif SHIFT == 1 | |
838 | EAX = (EAX & ~0xffff) | v; | |
839 | #else | |
840 | EAX = v; | |
841 | #endif | |
842 | ESI += (DF << SHIFT); | |
843 | } | |
844 | ||
845 | /* don't know if it is used */ | |
846 | void OPPROTO glue(op_rep_lods, SUFFIX)(void) | |
847 | { | |
848 | int v, inc; | |
849 | inc = (DF << SHIFT); | |
850 | while (ECX != 0) { | |
851 | v = glue(ldu, SUFFIX)((void *)ESI); | |
852 | #if SHIFT == 0 | |
853 | EAX = (EAX & ~0xff) | v; | |
854 | #elif SHIFT == 1 | |
855 | EAX = (EAX & ~0xffff) | v; | |
856 | #else | |
857 | EAX = v; | |
858 | #endif | |
859 | ESI += inc; | |
860 | ECX--; | |
861 | } | |
862 | } | |
863 | ||
864 | void OPPROTO glue(op_scas, SUFFIX)(void) | |
865 | { | |
866 | int v; | |
867 | ||
4b74fe1f FB |
868 | v = glue(ldu, SUFFIX)((void *)EDI); |
869 | EDI += (DF << SHIFT); | |
367e86e8 FB |
870 | CC_SRC = EAX; |
871 | CC_DST = EAX - v; | |
872 | } | |
873 | ||
874 | void OPPROTO glue(op_repz_scas, SUFFIX)(void) | |
875 | { | |
876 | int v1, v2, inc; | |
877 | ||
878 | if (ECX != 0) { | |
879 | /* NOTE: the flags are not modified if ECX == 0 */ | |
4b74fe1f | 880 | v1 = EAX & DATA_MASK; |
367e86e8 FB |
881 | inc = (DF << SHIFT); |
882 | do { | |
4b74fe1f FB |
883 | v2 = glue(ldu, SUFFIX)((void *)EDI); |
884 | EDI += inc; | |
885 | ECX--; | |
367e86e8 FB |
886 | if (v1 != v2) |
887 | break; | |
367e86e8 FB |
888 | } while (ECX != 0); |
889 | CC_SRC = v1; | |
890 | CC_DST = v1 - v2; | |
891 | CC_OP = CC_OP_SUBB + SHIFT; | |
892 | } | |
893 | } | |
894 | ||
895 | void OPPROTO glue(op_repnz_scas, SUFFIX)(void) | |
896 | { | |
897 | int v1, v2, inc; | |
898 | ||
899 | if (ECX != 0) { | |
900 | /* NOTE: the flags are not modified if ECX == 0 */ | |
4b74fe1f | 901 | v1 = EAX & DATA_MASK; |
367e86e8 FB |
902 | inc = (DF << SHIFT); |
903 | do { | |
4b74fe1f FB |
904 | v2 = glue(ldu, SUFFIX)((void *)EDI); |
905 | EDI += inc; | |
906 | ECX--; | |
367e86e8 FB |
907 | if (v1 == v2) |
908 | break; | |
367e86e8 FB |
909 | } while (ECX != 0); |
910 | CC_SRC = v1; | |
911 | CC_DST = v1 - v2; | |
912 | CC_OP = CC_OP_SUBB + SHIFT; | |
913 | } | |
914 | } | |
915 | ||
916 | void OPPROTO glue(op_cmps, SUFFIX)(void) | |
917 | { | |
918 | int v1, v2; | |
919 | v1 = glue(ldu, SUFFIX)((void *)ESI); | |
920 | v2 = glue(ldu, SUFFIX)((void *)EDI); | |
921 | ESI += (DF << SHIFT); | |
922 | EDI += (DF << SHIFT); | |
923 | CC_SRC = v1; | |
924 | CC_DST = v1 - v2; | |
925 | } | |
926 | ||
927 | void OPPROTO glue(op_repz_cmps, SUFFIX)(void) | |
928 | { | |
929 | int v1, v2, inc; | |
930 | if (ECX != 0) { | |
931 | inc = (DF << SHIFT); | |
932 | do { | |
933 | v1 = glue(ldu, SUFFIX)((void *)ESI); | |
934 | v2 = glue(ldu, SUFFIX)((void *)EDI); | |
367e86e8 FB |
935 | ESI += inc; |
936 | EDI += inc; | |
937 | ECX--; | |
4b74fe1f FB |
938 | if (v1 != v2) |
939 | break; | |
367e86e8 FB |
940 | } while (ECX != 0); |
941 | CC_SRC = v1; | |
942 | CC_DST = v1 - v2; | |
943 | CC_OP = CC_OP_SUBB + SHIFT; | |
944 | } | |
945 | } | |
946 | ||
947 | void OPPROTO glue(op_repnz_cmps, SUFFIX)(void) | |
948 | { | |
949 | int v1, v2, inc; | |
950 | if (ECX != 0) { | |
951 | inc = (DF << SHIFT); | |
952 | do { | |
953 | v1 = glue(ldu, SUFFIX)((void *)ESI); | |
954 | v2 = glue(ldu, SUFFIX)((void *)EDI); | |
367e86e8 FB |
955 | ESI += inc; |
956 | EDI += inc; | |
957 | ECX--; | |
4b74fe1f FB |
958 | if (v1 == v2) |
959 | break; | |
367e86e8 FB |
960 | } while (ECX != 0); |
961 | CC_SRC = v1; | |
962 | CC_DST = v1 - v2; | |
963 | CC_OP = CC_OP_SUBB + SHIFT; | |
964 | } | |
965 | } | |
966 | ||
ba1c6e37 FB |
967 | /* port I/O */ |
968 | ||
367e86e8 FB |
969 | void OPPROTO glue(op_outs, SUFFIX)(void) |
970 | { | |
971 | int v, dx; | |
972 | dx = EDX & 0xffff; | |
973 | v = glue(ldu, SUFFIX)((void *)ESI); | |
ba1c6e37 | 974 | glue(cpu_x86_out, SUFFIX)(dx, v); |
367e86e8 FB |
975 | ESI += (DF << SHIFT); |
976 | } | |
977 | ||
978 | void OPPROTO glue(op_rep_outs, SUFFIX)(void) | |
979 | { | |
980 | int v, dx, inc; | |
981 | inc = (DF << SHIFT); | |
982 | dx = EDX & 0xffff; | |
983 | while (ECX != 0) { | |
984 | v = glue(ldu, SUFFIX)((void *)ESI); | |
ba1c6e37 | 985 | glue(cpu_x86_out, SUFFIX)(dx, v); |
367e86e8 FB |
986 | ESI += inc; |
987 | ECX--; | |
988 | } | |
989 | } | |
990 | ||
991 | void OPPROTO glue(op_ins, SUFFIX)(void) | |
992 | { | |
993 | int v, dx; | |
994 | dx = EDX & 0xffff; | |
ba1c6e37 | 995 | v = glue(cpu_x86_in, SUFFIX)(dx); |
367e86e8 FB |
996 | glue(st, SUFFIX)((void *)EDI, v); |
997 | EDI += (DF << SHIFT); | |
998 | } | |
999 | ||
1000 | void OPPROTO glue(op_rep_ins, SUFFIX)(void) | |
1001 | { | |
1002 | int v, dx, inc; | |
1003 | inc = (DF << SHIFT); | |
1004 | dx = EDX & 0xffff; | |
1005 | while (ECX != 0) { | |
ba1c6e37 | 1006 | v = glue(cpu_x86_in, SUFFIX)(dx); |
367e86e8 FB |
1007 | glue(st, SUFFIX)((void *)EDI, v); |
1008 | EDI += (DF << SHIFT); | |
1009 | ECX--; | |
1010 | } | |
1011 | } | |
1012 | ||
ba1c6e37 FB |
1013 | void OPPROTO glue(glue(op_out, SUFFIX), _T0_T1)(void) |
1014 | { | |
1015 | glue(cpu_x86_out, SUFFIX)(T0 & 0xffff, T1 & DATA_MASK); | |
1016 | } | |
1017 | ||
1018 | void OPPROTO glue(glue(op_in, SUFFIX), _T0_T1)(void) | |
1019 | { | |
1020 | T1 = glue(cpu_x86_in, SUFFIX)(T0 & 0xffff); | |
1021 | } | |
1022 | ||
367e86e8 FB |
1023 | #undef DATA_BITS |
1024 | #undef SHIFT_MASK | |
1025 | #undef SIGN_MASK | |
1026 | #undef DATA_TYPE | |
1027 | #undef DATA_STYPE | |
1028 | #undef DATA_MASK | |
1029 | #undef SUFFIX |