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2c0262af FB |
1 | /* |
2 | * i386 micro operations (included several times to generate | |
3 | * different operand sizes) | |
4 | * | |
5 | * Copyright (c) 2003 Fabrice Bellard | |
6 | * | |
7 | * This library is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU Lesser General Public | |
9 | * License as published by the Free Software Foundation; either | |
10 | * version 2 of the License, or (at your option) any later version. | |
11 | * | |
12 | * This library is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * Lesser General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU Lesser General Public | |
18 | * License along with this library; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | */ | |
21 | #define DATA_BITS (1 << (3 + SHIFT)) | |
22 | #define SHIFT_MASK (DATA_BITS - 1) | |
14ce26e7 FB |
23 | #define SIGN_MASK (((target_ulong)1) << (DATA_BITS - 1)) |
24 | #if DATA_BITS <= 32 | |
25 | #define SHIFT1_MASK 0x1f | |
26 | #else | |
27 | #define SHIFT1_MASK 0x3f | |
28 | #endif | |
2c0262af FB |
29 | |
30 | #if DATA_BITS == 8 | |
31 | #define SUFFIX b | |
32 | #define DATA_TYPE uint8_t | |
33 | #define DATA_STYPE int8_t | |
34 | #define DATA_MASK 0xff | |
35 | #elif DATA_BITS == 16 | |
36 | #define SUFFIX w | |
37 | #define DATA_TYPE uint16_t | |
38 | #define DATA_STYPE int16_t | |
39 | #define DATA_MASK 0xffff | |
40 | #elif DATA_BITS == 32 | |
41 | #define SUFFIX l | |
42 | #define DATA_TYPE uint32_t | |
43 | #define DATA_STYPE int32_t | |
44 | #define DATA_MASK 0xffffffff | |
14ce26e7 FB |
45 | #elif DATA_BITS == 64 |
46 | #define SUFFIX q | |
47 | #define DATA_TYPE uint64_t | |
48 | #define DATA_STYPE int64_t | |
977d5710 | 49 | #define DATA_MASK 0xffffffffffffffffULL |
2c0262af FB |
50 | #else |
51 | #error unhandled operand size | |
52 | #endif | |
53 | ||
54 | /* dynamic flags computation */ | |
55 | ||
56 | static int glue(compute_all_add, SUFFIX)(void) | |
57 | { | |
58 | int cf, pf, af, zf, sf, of; | |
14ce26e7 | 59 | target_long src1, src2; |
2c0262af FB |
60 | src1 = CC_SRC; |
61 | src2 = CC_DST - CC_SRC; | |
62 | cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1; | |
63 | pf = parity_table[(uint8_t)CC_DST]; | |
64 | af = (CC_DST ^ src1 ^ src2) & 0x10; | |
65 | zf = ((DATA_TYPE)CC_DST == 0) << 6; | |
66 | sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; | |
67 | of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; | |
68 | return cf | pf | af | zf | sf | of; | |
69 | } | |
70 | ||
71 | static int glue(compute_c_add, SUFFIX)(void) | |
72 | { | |
14ce26e7 FB |
73 | int cf; |
74 | target_long src1; | |
2c0262af FB |
75 | src1 = CC_SRC; |
76 | cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1; | |
77 | return cf; | |
78 | } | |
79 | ||
80 | static int glue(compute_all_adc, SUFFIX)(void) | |
81 | { | |
82 | int cf, pf, af, zf, sf, of; | |
14ce26e7 | 83 | target_long src1, src2; |
2c0262af FB |
84 | src1 = CC_SRC; |
85 | src2 = CC_DST - CC_SRC - 1; | |
86 | cf = (DATA_TYPE)CC_DST <= (DATA_TYPE)src1; | |
87 | pf = parity_table[(uint8_t)CC_DST]; | |
88 | af = (CC_DST ^ src1 ^ src2) & 0x10; | |
89 | zf = ((DATA_TYPE)CC_DST == 0) << 6; | |
90 | sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; | |
91 | of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; | |
92 | return cf | pf | af | zf | sf | of; | |
93 | } | |
94 | ||
95 | static int glue(compute_c_adc, SUFFIX)(void) | |
96 | { | |
14ce26e7 FB |
97 | int cf; |
98 | target_long src1; | |
2c0262af FB |
99 | src1 = CC_SRC; |
100 | cf = (DATA_TYPE)CC_DST <= (DATA_TYPE)src1; | |
101 | return cf; | |
102 | } | |
103 | ||
104 | static int glue(compute_all_sub, SUFFIX)(void) | |
105 | { | |
106 | int cf, pf, af, zf, sf, of; | |
14ce26e7 | 107 | target_long src1, src2; |
2c0262af FB |
108 | src1 = CC_DST + CC_SRC; |
109 | src2 = CC_SRC; | |
110 | cf = (DATA_TYPE)src1 < (DATA_TYPE)src2; | |
111 | pf = parity_table[(uint8_t)CC_DST]; | |
112 | af = (CC_DST ^ src1 ^ src2) & 0x10; | |
113 | zf = ((DATA_TYPE)CC_DST == 0) << 6; | |
114 | sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; | |
115 | of = lshift((src1 ^ src2) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; | |
116 | return cf | pf | af | zf | sf | of; | |
117 | } | |
118 | ||
119 | static int glue(compute_c_sub, SUFFIX)(void) | |
120 | { | |
14ce26e7 FB |
121 | int cf; |
122 | target_long src1, src2; | |
2c0262af FB |
123 | src1 = CC_DST + CC_SRC; |
124 | src2 = CC_SRC; | |
125 | cf = (DATA_TYPE)src1 < (DATA_TYPE)src2; | |
126 | return cf; | |
127 | } | |
128 | ||
129 | static int glue(compute_all_sbb, SUFFIX)(void) | |
130 | { | |
131 | int cf, pf, af, zf, sf, of; | |
14ce26e7 | 132 | target_long src1, src2; |
2c0262af FB |
133 | src1 = CC_DST + CC_SRC + 1; |
134 | src2 = CC_SRC; | |
135 | cf = (DATA_TYPE)src1 <= (DATA_TYPE)src2; | |
136 | pf = parity_table[(uint8_t)CC_DST]; | |
137 | af = (CC_DST ^ src1 ^ src2) & 0x10; | |
138 | zf = ((DATA_TYPE)CC_DST == 0) << 6; | |
139 | sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; | |
140 | of = lshift((src1 ^ src2) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; | |
141 | return cf | pf | af | zf | sf | of; | |
142 | } | |
143 | ||
144 | static int glue(compute_c_sbb, SUFFIX)(void) | |
145 | { | |
14ce26e7 FB |
146 | int cf; |
147 | target_long src1, src2; | |
2c0262af FB |
148 | src1 = CC_DST + CC_SRC + 1; |
149 | src2 = CC_SRC; | |
150 | cf = (DATA_TYPE)src1 <= (DATA_TYPE)src2; | |
151 | return cf; | |
152 | } | |
153 | ||
154 | static int glue(compute_all_logic, SUFFIX)(void) | |
155 | { | |
156 | int cf, pf, af, zf, sf, of; | |
157 | cf = 0; | |
158 | pf = parity_table[(uint8_t)CC_DST]; | |
159 | af = 0; | |
160 | zf = ((DATA_TYPE)CC_DST == 0) << 6; | |
161 | sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; | |
162 | of = 0; | |
163 | return cf | pf | af | zf | sf | of; | |
164 | } | |
165 | ||
166 | static int glue(compute_c_logic, SUFFIX)(void) | |
167 | { | |
168 | return 0; | |
169 | } | |
170 | ||
171 | static int glue(compute_all_inc, SUFFIX)(void) | |
172 | { | |
173 | int cf, pf, af, zf, sf, of; | |
14ce26e7 | 174 | target_long src1, src2; |
2c0262af FB |
175 | src1 = CC_DST - 1; |
176 | src2 = 1; | |
177 | cf = CC_SRC; | |
178 | pf = parity_table[(uint8_t)CC_DST]; | |
179 | af = (CC_DST ^ src1 ^ src2) & 0x10; | |
180 | zf = ((DATA_TYPE)CC_DST == 0) << 6; | |
181 | sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; | |
182 | of = ((CC_DST & DATA_MASK) == SIGN_MASK) << 11; | |
183 | return cf | pf | af | zf | sf | of; | |
184 | } | |
185 | ||
186 | #if DATA_BITS == 32 | |
187 | static int glue(compute_c_inc, SUFFIX)(void) | |
188 | { | |
189 | return CC_SRC; | |
190 | } | |
191 | #endif | |
192 | ||
193 | static int glue(compute_all_dec, SUFFIX)(void) | |
194 | { | |
195 | int cf, pf, af, zf, sf, of; | |
14ce26e7 | 196 | target_long src1, src2; |
2c0262af FB |
197 | src1 = CC_DST + 1; |
198 | src2 = 1; | |
199 | cf = CC_SRC; | |
200 | pf = parity_table[(uint8_t)CC_DST]; | |
201 | af = (CC_DST ^ src1 ^ src2) & 0x10; | |
202 | zf = ((DATA_TYPE)CC_DST == 0) << 6; | |
203 | sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; | |
14ce26e7 | 204 | of = ((CC_DST & DATA_MASK) == ((target_ulong)SIGN_MASK - 1)) << 11; |
2c0262af FB |
205 | return cf | pf | af | zf | sf | of; |
206 | } | |
207 | ||
208 | static int glue(compute_all_shl, SUFFIX)(void) | |
209 | { | |
210 | int cf, pf, af, zf, sf, of; | |
211 | cf = (CC_SRC >> (DATA_BITS - 1)) & CC_C; | |
212 | pf = parity_table[(uint8_t)CC_DST]; | |
213 | af = 0; /* undefined */ | |
214 | zf = ((DATA_TYPE)CC_DST == 0) << 6; | |
215 | sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; | |
216 | /* of is defined if shift count == 1 */ | |
217 | of = lshift(CC_SRC ^ CC_DST, 12 - DATA_BITS) & CC_O; | |
218 | return cf | pf | af | zf | sf | of; | |
219 | } | |
220 | ||
221 | static int glue(compute_c_shl, SUFFIX)(void) | |
222 | { | |
223 | return (CC_SRC >> (DATA_BITS - 1)) & CC_C; | |
224 | } | |
225 | ||
226 | #if DATA_BITS == 32 | |
227 | static int glue(compute_c_sar, SUFFIX)(void) | |
228 | { | |
229 | return CC_SRC & 1; | |
230 | } | |
231 | #endif | |
232 | ||
233 | static int glue(compute_all_sar, SUFFIX)(void) | |
234 | { | |
235 | int cf, pf, af, zf, sf, of; | |
236 | cf = CC_SRC & 1; | |
237 | pf = parity_table[(uint8_t)CC_DST]; | |
238 | af = 0; /* undefined */ | |
239 | zf = ((DATA_TYPE)CC_DST == 0) << 6; | |
240 | sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; | |
241 | /* of is defined if shift count == 1 */ | |
242 | of = lshift(CC_SRC ^ CC_DST, 12 - DATA_BITS) & CC_O; | |
243 | return cf | pf | af | zf | sf | of; | |
244 | } | |
245 | ||
d36cd60e FB |
246 | #if DATA_BITS == 32 |
247 | static int glue(compute_c_mul, SUFFIX)(void) | |
248 | { | |
249 | int cf; | |
250 | cf = (CC_SRC != 0); | |
251 | return cf; | |
252 | } | |
253 | #endif | |
254 | ||
255 | /* NOTE: we compute the flags like the P4. On olders CPUs, only OF and | |
256 | CF are modified and it is slower to do that. */ | |
257 | static int glue(compute_all_mul, SUFFIX)(void) | |
258 | { | |
259 | int cf, pf, af, zf, sf, of; | |
260 | cf = (CC_SRC != 0); | |
261 | pf = parity_table[(uint8_t)CC_DST]; | |
262 | af = 0; /* undefined */ | |
263 | zf = ((DATA_TYPE)CC_DST == 0) << 6; | |
264 | sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; | |
265 | of = cf << 11; | |
266 | return cf | pf | af | zf | sf | of; | |
267 | } | |
268 | ||
2c0262af FB |
269 | /* various optimized jumps cases */ |
270 | ||
271 | void OPPROTO glue(op_jb_sub, SUFFIX)(void) | |
272 | { | |
14ce26e7 | 273 | target_long src1, src2; |
2c0262af FB |
274 | src1 = CC_DST + CC_SRC; |
275 | src2 = CC_SRC; | |
276 | ||
277 | if ((DATA_TYPE)src1 < (DATA_TYPE)src2) | |
14ce26e7 | 278 | GOTO_LABEL_PARAM(1); |
2c0262af FB |
279 | FORCE_RET(); |
280 | } | |
281 | ||
282 | void OPPROTO glue(op_jz_sub, SUFFIX)(void) | |
283 | { | |
284 | if ((DATA_TYPE)CC_DST == 0) | |
14ce26e7 FB |
285 | GOTO_LABEL_PARAM(1); |
286 | FORCE_RET(); | |
287 | } | |
288 | ||
289 | void OPPROTO glue(op_jnz_sub, SUFFIX)(void) | |
290 | { | |
291 | if ((DATA_TYPE)CC_DST != 0) | |
292 | GOTO_LABEL_PARAM(1); | |
2c0262af FB |
293 | FORCE_RET(); |
294 | } | |
295 | ||
296 | void OPPROTO glue(op_jbe_sub, SUFFIX)(void) | |
297 | { | |
14ce26e7 | 298 | target_long src1, src2; |
2c0262af FB |
299 | src1 = CC_DST + CC_SRC; |
300 | src2 = CC_SRC; | |
301 | ||
302 | if ((DATA_TYPE)src1 <= (DATA_TYPE)src2) | |
14ce26e7 | 303 | GOTO_LABEL_PARAM(1); |
2c0262af FB |
304 | FORCE_RET(); |
305 | } | |
306 | ||
307 | void OPPROTO glue(op_js_sub, SUFFIX)(void) | |
308 | { | |
309 | if (CC_DST & SIGN_MASK) | |
14ce26e7 | 310 | GOTO_LABEL_PARAM(1); |
2c0262af FB |
311 | FORCE_RET(); |
312 | } | |
313 | ||
314 | void OPPROTO glue(op_jl_sub, SUFFIX)(void) | |
315 | { | |
14ce26e7 | 316 | target_long src1, src2; |
2c0262af FB |
317 | src1 = CC_DST + CC_SRC; |
318 | src2 = CC_SRC; | |
319 | ||
320 | if ((DATA_STYPE)src1 < (DATA_STYPE)src2) | |
14ce26e7 | 321 | GOTO_LABEL_PARAM(1); |
2c0262af FB |
322 | FORCE_RET(); |
323 | } | |
324 | ||
325 | void OPPROTO glue(op_jle_sub, SUFFIX)(void) | |
326 | { | |
14ce26e7 | 327 | target_long src1, src2; |
2c0262af FB |
328 | src1 = CC_DST + CC_SRC; |
329 | src2 = CC_SRC; | |
330 | ||
331 | if ((DATA_STYPE)src1 <= (DATA_STYPE)src2) | |
14ce26e7 | 332 | GOTO_LABEL_PARAM(1); |
2c0262af FB |
333 | FORCE_RET(); |
334 | } | |
335 | ||
336 | /* oldies */ | |
337 | ||
338 | #if DATA_BITS >= 16 | |
339 | ||
340 | void OPPROTO glue(op_loopnz, SUFFIX)(void) | |
341 | { | |
0b9dc5e4 | 342 | if ((DATA_TYPE)ECX != 0 && !(T0 & CC_Z)) |
14ce26e7 | 343 | GOTO_LABEL_PARAM(1); |
2c0262af FB |
344 | FORCE_RET(); |
345 | } | |
346 | ||
347 | void OPPROTO glue(op_loopz, SUFFIX)(void) | |
348 | { | |
0b9dc5e4 | 349 | if ((DATA_TYPE)ECX != 0 && (T0 & CC_Z)) |
14ce26e7 | 350 | GOTO_LABEL_PARAM(1); |
2c0262af FB |
351 | FORCE_RET(); |
352 | } | |
353 | ||
14ce26e7 | 354 | void OPPROTO glue(op_jz_ecx, SUFFIX)(void) |
2c0262af | 355 | { |
14ce26e7 FB |
356 | if ((DATA_TYPE)ECX == 0) |
357 | GOTO_LABEL_PARAM(1); | |
2c0262af FB |
358 | FORCE_RET(); |
359 | } | |
360 | ||
14ce26e7 | 361 | void OPPROTO glue(op_jnz_ecx, SUFFIX)(void) |
2c0262af | 362 | { |
14ce26e7 FB |
363 | if ((DATA_TYPE)ECX != 0) |
364 | GOTO_LABEL_PARAM(1); | |
2c0262af FB |
365 | FORCE_RET(); |
366 | } | |
367 | ||
368 | #endif | |
369 | ||
370 | /* various optimized set cases */ | |
371 | ||
372 | void OPPROTO glue(op_setb_T0_sub, SUFFIX)(void) | |
373 | { | |
14ce26e7 | 374 | target_long src1, src2; |
2c0262af FB |
375 | src1 = CC_DST + CC_SRC; |
376 | src2 = CC_SRC; | |
377 | ||
378 | T0 = ((DATA_TYPE)src1 < (DATA_TYPE)src2); | |
379 | } | |
380 | ||
381 | void OPPROTO glue(op_setz_T0_sub, SUFFIX)(void) | |
382 | { | |
383 | T0 = ((DATA_TYPE)CC_DST == 0); | |
384 | } | |
385 | ||
386 | void OPPROTO glue(op_setbe_T0_sub, SUFFIX)(void) | |
387 | { | |
14ce26e7 | 388 | target_long src1, src2; |
2c0262af FB |
389 | src1 = CC_DST + CC_SRC; |
390 | src2 = CC_SRC; | |
391 | ||
392 | T0 = ((DATA_TYPE)src1 <= (DATA_TYPE)src2); | |
393 | } | |
394 | ||
395 | void OPPROTO glue(op_sets_T0_sub, SUFFIX)(void) | |
396 | { | |
397 | T0 = lshift(CC_DST, -(DATA_BITS - 1)) & 1; | |
398 | } | |
399 | ||
400 | void OPPROTO glue(op_setl_T0_sub, SUFFIX)(void) | |
401 | { | |
14ce26e7 | 402 | target_long src1, src2; |
2c0262af FB |
403 | src1 = CC_DST + CC_SRC; |
404 | src2 = CC_SRC; | |
405 | ||
406 | T0 = ((DATA_STYPE)src1 < (DATA_STYPE)src2); | |
407 | } | |
408 | ||
409 | void OPPROTO glue(op_setle_T0_sub, SUFFIX)(void) | |
410 | { | |
14ce26e7 | 411 | target_long src1, src2; |
2c0262af FB |
412 | src1 = CC_DST + CC_SRC; |
413 | src2 = CC_SRC; | |
414 | ||
415 | T0 = ((DATA_STYPE)src1 <= (DATA_STYPE)src2); | |
416 | } | |
417 | ||
418 | /* shifts */ | |
419 | ||
420 | void OPPROTO glue(glue(op_shl, SUFFIX), _T0_T1)(void) | |
421 | { | |
422 | int count; | |
14ce26e7 | 423 | count = T1 & SHIFT1_MASK; |
2c0262af FB |
424 | T0 = T0 << count; |
425 | FORCE_RET(); | |
426 | } | |
427 | ||
428 | void OPPROTO glue(glue(op_shr, SUFFIX), _T0_T1)(void) | |
429 | { | |
430 | int count; | |
14ce26e7 | 431 | count = T1 & SHIFT1_MASK; |
2c0262af FB |
432 | T0 &= DATA_MASK; |
433 | T0 = T0 >> count; | |
434 | FORCE_RET(); | |
435 | } | |
436 | ||
437 | void OPPROTO glue(glue(op_sar, SUFFIX), _T0_T1)(void) | |
438 | { | |
14ce26e7 FB |
439 | int count; |
440 | target_long src; | |
441 | ||
442 | count = T1 & SHIFT1_MASK; | |
2c0262af FB |
443 | src = (DATA_STYPE)T0; |
444 | T0 = src >> count; | |
445 | FORCE_RET(); | |
446 | } | |
447 | ||
448 | #undef MEM_WRITE | |
449 | #include "ops_template_mem.h" | |
450 | ||
34e01bbf | 451 | #define MEM_WRITE 0 |
2c0262af FB |
452 | #include "ops_template_mem.h" |
453 | ||
34e01bbf FB |
454 | #if !defined(CONFIG_USER_ONLY) |
455 | #define MEM_WRITE 1 | |
456 | #include "ops_template_mem.h" | |
457 | ||
458 | #define MEM_WRITE 2 | |
459 | #include "ops_template_mem.h" | |
460 | #endif | |
461 | ||
2c0262af FB |
462 | /* bit operations */ |
463 | #if DATA_BITS >= 16 | |
464 | ||
465 | void OPPROTO glue(glue(op_bt, SUFFIX), _T0_T1_cc)(void) | |
466 | { | |
467 | int count; | |
468 | count = T1 & SHIFT_MASK; | |
469 | CC_SRC = T0 >> count; | |
470 | } | |
471 | ||
472 | void OPPROTO glue(glue(op_bts, SUFFIX), _T0_T1_cc)(void) | |
473 | { | |
474 | int count; | |
475 | count = T1 & SHIFT_MASK; | |
476 | T1 = T0 >> count; | |
14ce26e7 | 477 | T0 |= (((target_long)1) << count); |
2c0262af FB |
478 | } |
479 | ||
480 | void OPPROTO glue(glue(op_btr, SUFFIX), _T0_T1_cc)(void) | |
481 | { | |
482 | int count; | |
483 | count = T1 & SHIFT_MASK; | |
484 | T1 = T0 >> count; | |
14ce26e7 | 485 | T0 &= ~(((target_long)1) << count); |
2c0262af FB |
486 | } |
487 | ||
488 | void OPPROTO glue(glue(op_btc, SUFFIX), _T0_T1_cc)(void) | |
489 | { | |
490 | int count; | |
491 | count = T1 & SHIFT_MASK; | |
492 | T1 = T0 >> count; | |
14ce26e7 FB |
493 | T0 ^= (((target_long)1) << count); |
494 | } | |
495 | ||
496 | void OPPROTO glue(glue(op_add_bit, SUFFIX), _A0_T1)(void) | |
497 | { | |
498 | A0 += ((DATA_STYPE)T1 >> (3 + SHIFT)) << SHIFT; | |
2c0262af FB |
499 | } |
500 | ||
501 | void OPPROTO glue(glue(op_bsf, SUFFIX), _T0_cc)(void) | |
502 | { | |
14ce26e7 FB |
503 | int count; |
504 | target_long res; | |
505 | ||
2c0262af FB |
506 | res = T0 & DATA_MASK; |
507 | if (res != 0) { | |
508 | count = 0; | |
509 | while ((res & 1) == 0) { | |
510 | count++; | |
511 | res >>= 1; | |
512 | } | |
686f3f26 | 513 | T1 = count; |
debf7a7c | 514 | CC_DST = 1; /* ZF = 0 */ |
2c0262af FB |
515 | } else { |
516 | CC_DST = 0; /* ZF = 1 */ | |
517 | } | |
518 | FORCE_RET(); | |
519 | } | |
520 | ||
521 | void OPPROTO glue(glue(op_bsr, SUFFIX), _T0_cc)(void) | |
522 | { | |
14ce26e7 FB |
523 | int count; |
524 | target_long res; | |
525 | ||
2c0262af FB |
526 | res = T0 & DATA_MASK; |
527 | if (res != 0) { | |
528 | count = DATA_BITS - 1; | |
529 | while ((res & SIGN_MASK) == 0) { | |
530 | count--; | |
531 | res <<= 1; | |
532 | } | |
686f3f26 | 533 | T1 = count; |
debf7a7c | 534 | CC_DST = 1; /* ZF = 0 */ |
2c0262af FB |
535 | } else { |
536 | CC_DST = 0; /* ZF = 1 */ | |
537 | } | |
538 | FORCE_RET(); | |
539 | } | |
540 | ||
541 | #endif | |
542 | ||
543 | #if DATA_BITS == 32 | |
544 | void OPPROTO op_update_bt_cc(void) | |
545 | { | |
546 | CC_SRC = T1; | |
547 | } | |
548 | #endif | |
549 | ||
550 | /* string operations */ | |
551 | ||
552 | void OPPROTO glue(op_movl_T0_Dshift, SUFFIX)(void) | |
553 | { | |
554 | T0 = DF << SHIFT; | |
555 | } | |
556 | ||
2c0262af | 557 | /* port I/O */ |
14ce26e7 | 558 | #if DATA_BITS <= 32 |
2c0262af FB |
559 | void OPPROTO glue(glue(op_out, SUFFIX), _T0_T1)(void) |
560 | { | |
4487d0ac | 561 | glue(cpu_out, SUFFIX)(env, T0, T1 & DATA_MASK); |
2c0262af FB |
562 | } |
563 | ||
564 | void OPPROTO glue(glue(op_in, SUFFIX), _T0_T1)(void) | |
565 | { | |
4487d0ac | 566 | T1 = glue(cpu_in, SUFFIX)(env, T0); |
2c0262af FB |
567 | } |
568 | ||
569 | void OPPROTO glue(glue(op_in, SUFFIX), _DX_T0)(void) | |
570 | { | |
4487d0ac | 571 | T0 = glue(cpu_in, SUFFIX)(env, EDX & 0xffff); |
2c0262af FB |
572 | } |
573 | ||
574 | void OPPROTO glue(glue(op_out, SUFFIX), _DX_T0)(void) | |
575 | { | |
4487d0ac | 576 | glue(cpu_out, SUFFIX)(env, EDX & 0xffff, T0); |
2c0262af FB |
577 | } |
578 | ||
3e25f951 FB |
579 | void OPPROTO glue(glue(op_check_io, SUFFIX), _T0)(void) |
580 | { | |
581 | glue(glue(check_io, SUFFIX), _T0)(); | |
582 | } | |
583 | ||
584 | void OPPROTO glue(glue(op_check_io, SUFFIX), _DX)(void) | |
585 | { | |
586 | glue(glue(check_io, SUFFIX), _DX)(); | |
587 | } | |
14ce26e7 | 588 | #endif |
3e25f951 | 589 | |
2c0262af FB |
590 | #undef DATA_BITS |
591 | #undef SHIFT_MASK | |
14ce26e7 | 592 | #undef SHIFT1_MASK |
2c0262af FB |
593 | #undef SIGN_MASK |
594 | #undef DATA_TYPE | |
595 | #undef DATA_STYPE | |
596 | #undef DATA_MASK | |
597 | #undef SUFFIX |