]>
Commit | Line | Data |
---|---|---|
1 | /* | |
2 | * Alpha emulation cpu translation for qemu. | |
3 | * | |
4 | * Copyright (c) 2007 Jocelyn Mayer | |
5 | * | |
6 | * This library is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU Lesser General Public | |
8 | * License as published by the Free Software Foundation; either | |
9 | * version 2 of the License, or (at your option) any later version. | |
10 | * | |
11 | * This library 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 GNU | |
14 | * Lesser General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU Lesser General Public | |
17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include <stdint.h> | |
21 | #include <stdlib.h> | |
22 | #include <stdio.h> | |
23 | ||
24 | #include "cpu.h" | |
25 | #include "disas.h" | |
26 | #include "host-utils.h" | |
27 | #include "tcg-op.h" | |
28 | #include "qemu-common.h" | |
29 | ||
30 | #include "helper.h" | |
31 | #define GEN_HELPER 1 | |
32 | #include "helper.h" | |
33 | ||
34 | #undef ALPHA_DEBUG_DISAS | |
35 | #define CONFIG_SOFTFLOAT_INLINE | |
36 | ||
37 | #ifdef ALPHA_DEBUG_DISAS | |
38 | # define LOG_DISAS(...) qemu_log_mask(CPU_LOG_TB_IN_ASM, ## __VA_ARGS__) | |
39 | #else | |
40 | # define LOG_DISAS(...) do { } while (0) | |
41 | #endif | |
42 | ||
43 | typedef struct DisasContext DisasContext; | |
44 | struct DisasContext { | |
45 | struct TranslationBlock *tb; | |
46 | CPUAlphaState *env; | |
47 | uint64_t pc; | |
48 | int mem_idx; | |
49 | ||
50 | /* Current rounding mode for this TB. */ | |
51 | int tb_rm; | |
52 | /* Current flush-to-zero setting for this TB. */ | |
53 | int tb_ftz; | |
54 | }; | |
55 | ||
56 | /* Return values from translate_one, indicating the state of the TB. | |
57 | Note that zero indicates that we are not exiting the TB. */ | |
58 | ||
59 | typedef enum { | |
60 | NO_EXIT, | |
61 | ||
62 | /* We have emitted one or more goto_tb. No fixup required. */ | |
63 | EXIT_GOTO_TB, | |
64 | ||
65 | /* We are not using a goto_tb (for whatever reason), but have updated | |
66 | the PC (for whatever reason), so there's no need to do it again on | |
67 | exiting the TB. */ | |
68 | EXIT_PC_UPDATED, | |
69 | ||
70 | /* We are exiting the TB, but have neither emitted a goto_tb, nor | |
71 | updated the PC for the next instruction to be executed. */ | |
72 | EXIT_PC_STALE, | |
73 | ||
74 | /* We are ending the TB with a noreturn function call, e.g. longjmp. | |
75 | No following code will be executed. */ | |
76 | EXIT_NORETURN, | |
77 | } ExitStatus; | |
78 | ||
79 | /* global register indexes */ | |
80 | static TCGv_ptr cpu_env; | |
81 | static TCGv cpu_ir[31]; | |
82 | static TCGv cpu_fir[31]; | |
83 | static TCGv cpu_pc; | |
84 | static TCGv cpu_lock_addr; | |
85 | static TCGv cpu_lock_st_addr; | |
86 | static TCGv cpu_lock_value; | |
87 | static TCGv cpu_unique; | |
88 | #ifndef CONFIG_USER_ONLY | |
89 | static TCGv cpu_sysval; | |
90 | static TCGv cpu_usp; | |
91 | #endif | |
92 | ||
93 | /* register names */ | |
94 | static char cpu_reg_names[10*4+21*5 + 10*5+21*6]; | |
95 | ||
96 | #include "gen-icount.h" | |
97 | ||
98 | static void alpha_translate_init(void) | |
99 | { | |
100 | int i; | |
101 | char *p; | |
102 | static int done_init = 0; | |
103 | ||
104 | if (done_init) | |
105 | return; | |
106 | ||
107 | cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env"); | |
108 | ||
109 | p = cpu_reg_names; | |
110 | for (i = 0; i < 31; i++) { | |
111 | sprintf(p, "ir%d", i); | |
112 | cpu_ir[i] = tcg_global_mem_new_i64(TCG_AREG0, | |
113 | offsetof(CPUState, ir[i]), p); | |
114 | p += (i < 10) ? 4 : 5; | |
115 | ||
116 | sprintf(p, "fir%d", i); | |
117 | cpu_fir[i] = tcg_global_mem_new_i64(TCG_AREG0, | |
118 | offsetof(CPUState, fir[i]), p); | |
119 | p += (i < 10) ? 5 : 6; | |
120 | } | |
121 | ||
122 | cpu_pc = tcg_global_mem_new_i64(TCG_AREG0, | |
123 | offsetof(CPUState, pc), "pc"); | |
124 | ||
125 | cpu_lock_addr = tcg_global_mem_new_i64(TCG_AREG0, | |
126 | offsetof(CPUState, lock_addr), | |
127 | "lock_addr"); | |
128 | cpu_lock_st_addr = tcg_global_mem_new_i64(TCG_AREG0, | |
129 | offsetof(CPUState, lock_st_addr), | |
130 | "lock_st_addr"); | |
131 | cpu_lock_value = tcg_global_mem_new_i64(TCG_AREG0, | |
132 | offsetof(CPUState, lock_value), | |
133 | "lock_value"); | |
134 | ||
135 | cpu_unique = tcg_global_mem_new_i64(TCG_AREG0, | |
136 | offsetof(CPUState, unique), "unique"); | |
137 | #ifndef CONFIG_USER_ONLY | |
138 | cpu_sysval = tcg_global_mem_new_i64(TCG_AREG0, | |
139 | offsetof(CPUState, sysval), "sysval"); | |
140 | cpu_usp = tcg_global_mem_new_i64(TCG_AREG0, | |
141 | offsetof(CPUState, usp), "usp"); | |
142 | #endif | |
143 | ||
144 | /* register helpers */ | |
145 | #define GEN_HELPER 2 | |
146 | #include "helper.h" | |
147 | ||
148 | done_init = 1; | |
149 | } | |
150 | ||
151 | static void gen_excp_1(int exception, int error_code) | |
152 | { | |
153 | TCGv_i32 tmp1, tmp2; | |
154 | ||
155 | tmp1 = tcg_const_i32(exception); | |
156 | tmp2 = tcg_const_i32(error_code); | |
157 | gen_helper_excp(tmp1, tmp2); | |
158 | tcg_temp_free_i32(tmp2); | |
159 | tcg_temp_free_i32(tmp1); | |
160 | } | |
161 | ||
162 | static ExitStatus gen_excp(DisasContext *ctx, int exception, int error_code) | |
163 | { | |
164 | tcg_gen_movi_i64(cpu_pc, ctx->pc); | |
165 | gen_excp_1(exception, error_code); | |
166 | return EXIT_NORETURN; | |
167 | } | |
168 | ||
169 | static inline ExitStatus gen_invalid(DisasContext *ctx) | |
170 | { | |
171 | return gen_excp(ctx, EXCP_OPCDEC, 0); | |
172 | } | |
173 | ||
174 | static inline void gen_qemu_ldf(TCGv t0, TCGv t1, int flags) | |
175 | { | |
176 | TCGv tmp = tcg_temp_new(); | |
177 | TCGv_i32 tmp32 = tcg_temp_new_i32(); | |
178 | tcg_gen_qemu_ld32u(tmp, t1, flags); | |
179 | tcg_gen_trunc_i64_i32(tmp32, tmp); | |
180 | gen_helper_memory_to_f(t0, tmp32); | |
181 | tcg_temp_free_i32(tmp32); | |
182 | tcg_temp_free(tmp); | |
183 | } | |
184 | ||
185 | static inline void gen_qemu_ldg(TCGv t0, TCGv t1, int flags) | |
186 | { | |
187 | TCGv tmp = tcg_temp_new(); | |
188 | tcg_gen_qemu_ld64(tmp, t1, flags); | |
189 | gen_helper_memory_to_g(t0, tmp); | |
190 | tcg_temp_free(tmp); | |
191 | } | |
192 | ||
193 | static inline void gen_qemu_lds(TCGv t0, TCGv t1, int flags) | |
194 | { | |
195 | TCGv tmp = tcg_temp_new(); | |
196 | TCGv_i32 tmp32 = tcg_temp_new_i32(); | |
197 | tcg_gen_qemu_ld32u(tmp, t1, flags); | |
198 | tcg_gen_trunc_i64_i32(tmp32, tmp); | |
199 | gen_helper_memory_to_s(t0, tmp32); | |
200 | tcg_temp_free_i32(tmp32); | |
201 | tcg_temp_free(tmp); | |
202 | } | |
203 | ||
204 | static inline void gen_qemu_ldl_l(TCGv t0, TCGv t1, int flags) | |
205 | { | |
206 | tcg_gen_qemu_ld32s(t0, t1, flags); | |
207 | tcg_gen_mov_i64(cpu_lock_addr, t1); | |
208 | tcg_gen_mov_i64(cpu_lock_value, t0); | |
209 | } | |
210 | ||
211 | static inline void gen_qemu_ldq_l(TCGv t0, TCGv t1, int flags) | |
212 | { | |
213 | tcg_gen_qemu_ld64(t0, t1, flags); | |
214 | tcg_gen_mov_i64(cpu_lock_addr, t1); | |
215 | tcg_gen_mov_i64(cpu_lock_value, t0); | |
216 | } | |
217 | ||
218 | static inline void gen_load_mem(DisasContext *ctx, | |
219 | void (*tcg_gen_qemu_load)(TCGv t0, TCGv t1, | |
220 | int flags), | |
221 | int ra, int rb, int32_t disp16, int fp, | |
222 | int clear) | |
223 | { | |
224 | TCGv addr, va; | |
225 | ||
226 | /* LDQ_U with ra $31 is UNOP. Other various loads are forms of | |
227 | prefetches, which we can treat as nops. No worries about | |
228 | missed exceptions here. */ | |
229 | if (unlikely(ra == 31)) { | |
230 | return; | |
231 | } | |
232 | ||
233 | addr = tcg_temp_new(); | |
234 | if (rb != 31) { | |
235 | tcg_gen_addi_i64(addr, cpu_ir[rb], disp16); | |
236 | if (clear) { | |
237 | tcg_gen_andi_i64(addr, addr, ~0x7); | |
238 | } | |
239 | } else { | |
240 | if (clear) { | |
241 | disp16 &= ~0x7; | |
242 | } | |
243 | tcg_gen_movi_i64(addr, disp16); | |
244 | } | |
245 | ||
246 | va = (fp ? cpu_fir[ra] : cpu_ir[ra]); | |
247 | tcg_gen_qemu_load(va, addr, ctx->mem_idx); | |
248 | ||
249 | tcg_temp_free(addr); | |
250 | } | |
251 | ||
252 | static inline void gen_qemu_stf(TCGv t0, TCGv t1, int flags) | |
253 | { | |
254 | TCGv_i32 tmp32 = tcg_temp_new_i32(); | |
255 | TCGv tmp = tcg_temp_new(); | |
256 | gen_helper_f_to_memory(tmp32, t0); | |
257 | tcg_gen_extu_i32_i64(tmp, tmp32); | |
258 | tcg_gen_qemu_st32(tmp, t1, flags); | |
259 | tcg_temp_free(tmp); | |
260 | tcg_temp_free_i32(tmp32); | |
261 | } | |
262 | ||
263 | static inline void gen_qemu_stg(TCGv t0, TCGv t1, int flags) | |
264 | { | |
265 | TCGv tmp = tcg_temp_new(); | |
266 | gen_helper_g_to_memory(tmp, t0); | |
267 | tcg_gen_qemu_st64(tmp, t1, flags); | |
268 | tcg_temp_free(tmp); | |
269 | } | |
270 | ||
271 | static inline void gen_qemu_sts(TCGv t0, TCGv t1, int flags) | |
272 | { | |
273 | TCGv_i32 tmp32 = tcg_temp_new_i32(); | |
274 | TCGv tmp = tcg_temp_new(); | |
275 | gen_helper_s_to_memory(tmp32, t0); | |
276 | tcg_gen_extu_i32_i64(tmp, tmp32); | |
277 | tcg_gen_qemu_st32(tmp, t1, flags); | |
278 | tcg_temp_free(tmp); | |
279 | tcg_temp_free_i32(tmp32); | |
280 | } | |
281 | ||
282 | static inline void gen_store_mem(DisasContext *ctx, | |
283 | void (*tcg_gen_qemu_store)(TCGv t0, TCGv t1, | |
284 | int flags), | |
285 | int ra, int rb, int32_t disp16, int fp, | |
286 | int clear) | |
287 | { | |
288 | TCGv addr, va; | |
289 | ||
290 | addr = tcg_temp_new(); | |
291 | if (rb != 31) { | |
292 | tcg_gen_addi_i64(addr, cpu_ir[rb], disp16); | |
293 | if (clear) { | |
294 | tcg_gen_andi_i64(addr, addr, ~0x7); | |
295 | } | |
296 | } else { | |
297 | if (clear) { | |
298 | disp16 &= ~0x7; | |
299 | } | |
300 | tcg_gen_movi_i64(addr, disp16); | |
301 | } | |
302 | ||
303 | if (ra == 31) { | |
304 | va = tcg_const_i64(0); | |
305 | } else { | |
306 | va = (fp ? cpu_fir[ra] : cpu_ir[ra]); | |
307 | } | |
308 | tcg_gen_qemu_store(va, addr, ctx->mem_idx); | |
309 | ||
310 | tcg_temp_free(addr); | |
311 | if (ra == 31) { | |
312 | tcg_temp_free(va); | |
313 | } | |
314 | } | |
315 | ||
316 | static ExitStatus gen_store_conditional(DisasContext *ctx, int ra, int rb, | |
317 | int32_t disp16, int quad) | |
318 | { | |
319 | TCGv addr; | |
320 | ||
321 | if (ra == 31) { | |
322 | /* ??? Don't bother storing anything. The user can't tell | |
323 | the difference, since the zero register always reads zero. */ | |
324 | return NO_EXIT; | |
325 | } | |
326 | ||
327 | #if defined(CONFIG_USER_ONLY) | |
328 | addr = cpu_lock_st_addr; | |
329 | #else | |
330 | addr = tcg_temp_local_new(); | |
331 | #endif | |
332 | ||
333 | if (rb != 31) { | |
334 | tcg_gen_addi_i64(addr, cpu_ir[rb], disp16); | |
335 | } else { | |
336 | tcg_gen_movi_i64(addr, disp16); | |
337 | } | |
338 | ||
339 | #if defined(CONFIG_USER_ONLY) | |
340 | /* ??? This is handled via a complicated version of compare-and-swap | |
341 | in the cpu_loop. Hopefully one day we'll have a real CAS opcode | |
342 | in TCG so that this isn't necessary. */ | |
343 | return gen_excp(ctx, quad ? EXCP_STQ_C : EXCP_STL_C, ra); | |
344 | #else | |
345 | /* ??? In system mode we are never multi-threaded, so CAS can be | |
346 | implemented via a non-atomic load-compare-store sequence. */ | |
347 | { | |
348 | int lab_fail, lab_done; | |
349 | TCGv val; | |
350 | ||
351 | lab_fail = gen_new_label(); | |
352 | lab_done = gen_new_label(); | |
353 | tcg_gen_brcond_i64(TCG_COND_NE, addr, cpu_lock_addr, lab_fail); | |
354 | ||
355 | val = tcg_temp_new(); | |
356 | if (quad) { | |
357 | tcg_gen_qemu_ld64(val, addr, ctx->mem_idx); | |
358 | } else { | |
359 | tcg_gen_qemu_ld32s(val, addr, ctx->mem_idx); | |
360 | } | |
361 | tcg_gen_brcond_i64(TCG_COND_NE, val, cpu_lock_value, lab_fail); | |
362 | ||
363 | if (quad) { | |
364 | tcg_gen_qemu_st64(cpu_ir[ra], addr, ctx->mem_idx); | |
365 | } else { | |
366 | tcg_gen_qemu_st32(cpu_ir[ra], addr, ctx->mem_idx); | |
367 | } | |
368 | tcg_gen_movi_i64(cpu_ir[ra], 1); | |
369 | tcg_gen_br(lab_done); | |
370 | ||
371 | gen_set_label(lab_fail); | |
372 | tcg_gen_movi_i64(cpu_ir[ra], 0); | |
373 | ||
374 | gen_set_label(lab_done); | |
375 | tcg_gen_movi_i64(cpu_lock_addr, -1); | |
376 | ||
377 | tcg_temp_free(addr); | |
378 | return NO_EXIT; | |
379 | } | |
380 | #endif | |
381 | } | |
382 | ||
383 | static int use_goto_tb(DisasContext *ctx, uint64_t dest) | |
384 | { | |
385 | /* Check for the dest on the same page as the start of the TB. We | |
386 | also want to suppress goto_tb in the case of single-steping and IO. */ | |
387 | return (((ctx->tb->pc ^ dest) & TARGET_PAGE_MASK) == 0 | |
388 | && !ctx->env->singlestep_enabled | |
389 | && !(ctx->tb->cflags & CF_LAST_IO)); | |
390 | } | |
391 | ||
392 | static ExitStatus gen_bdirect(DisasContext *ctx, int ra, int32_t disp) | |
393 | { | |
394 | uint64_t dest = ctx->pc + (disp << 2); | |
395 | ||
396 | if (ra != 31) { | |
397 | tcg_gen_movi_i64(cpu_ir[ra], ctx->pc); | |
398 | } | |
399 | ||
400 | /* Notice branch-to-next; used to initialize RA with the PC. */ | |
401 | if (disp == 0) { | |
402 | return 0; | |
403 | } else if (use_goto_tb(ctx, dest)) { | |
404 | tcg_gen_goto_tb(0); | |
405 | tcg_gen_movi_i64(cpu_pc, dest); | |
406 | tcg_gen_exit_tb((tcg_target_long)ctx->tb); | |
407 | return EXIT_GOTO_TB; | |
408 | } else { | |
409 | tcg_gen_movi_i64(cpu_pc, dest); | |
410 | return EXIT_PC_UPDATED; | |
411 | } | |
412 | } | |
413 | ||
414 | static ExitStatus gen_bcond_internal(DisasContext *ctx, TCGCond cond, | |
415 | TCGv cmp, int32_t disp) | |
416 | { | |
417 | uint64_t dest = ctx->pc + (disp << 2); | |
418 | int lab_true = gen_new_label(); | |
419 | ||
420 | if (use_goto_tb(ctx, dest)) { | |
421 | tcg_gen_brcondi_i64(cond, cmp, 0, lab_true); | |
422 | ||
423 | tcg_gen_goto_tb(0); | |
424 | tcg_gen_movi_i64(cpu_pc, ctx->pc); | |
425 | tcg_gen_exit_tb((tcg_target_long)ctx->tb); | |
426 | ||
427 | gen_set_label(lab_true); | |
428 | tcg_gen_goto_tb(1); | |
429 | tcg_gen_movi_i64(cpu_pc, dest); | |
430 | tcg_gen_exit_tb((tcg_target_long)ctx->tb + 1); | |
431 | ||
432 | return EXIT_GOTO_TB; | |
433 | } else { | |
434 | int lab_over = gen_new_label(); | |
435 | ||
436 | /* ??? Consider using either | |
437 | movi pc, next | |
438 | addi tmp, pc, disp | |
439 | movcond pc, cond, 0, tmp, pc | |
440 | or | |
441 | setcond tmp, cond, 0 | |
442 | movi pc, next | |
443 | neg tmp, tmp | |
444 | andi tmp, tmp, disp | |
445 | add pc, pc, tmp | |
446 | The current diamond subgraph surely isn't efficient. */ | |
447 | ||
448 | tcg_gen_brcondi_i64(cond, cmp, 0, lab_true); | |
449 | tcg_gen_movi_i64(cpu_pc, ctx->pc); | |
450 | tcg_gen_br(lab_over); | |
451 | gen_set_label(lab_true); | |
452 | tcg_gen_movi_i64(cpu_pc, dest); | |
453 | gen_set_label(lab_over); | |
454 | ||
455 | return EXIT_PC_UPDATED; | |
456 | } | |
457 | } | |
458 | ||
459 | static ExitStatus gen_bcond(DisasContext *ctx, TCGCond cond, int ra, | |
460 | int32_t disp, int mask) | |
461 | { | |
462 | TCGv cmp_tmp; | |
463 | ||
464 | if (unlikely(ra == 31)) { | |
465 | cmp_tmp = tcg_const_i64(0); | |
466 | } else { | |
467 | cmp_tmp = tcg_temp_new(); | |
468 | if (mask) { | |
469 | tcg_gen_andi_i64(cmp_tmp, cpu_ir[ra], 1); | |
470 | } else { | |
471 | tcg_gen_mov_i64(cmp_tmp, cpu_ir[ra]); | |
472 | } | |
473 | } | |
474 | ||
475 | return gen_bcond_internal(ctx, cond, cmp_tmp, disp); | |
476 | } | |
477 | ||
478 | /* Fold -0.0 for comparison with COND. */ | |
479 | ||
480 | static void gen_fold_mzero(TCGCond cond, TCGv dest, TCGv src) | |
481 | { | |
482 | uint64_t mzero = 1ull << 63; | |
483 | ||
484 | switch (cond) { | |
485 | case TCG_COND_LE: | |
486 | case TCG_COND_GT: | |
487 | /* For <= or >, the -0.0 value directly compares the way we want. */ | |
488 | tcg_gen_mov_i64(dest, src); | |
489 | break; | |
490 | ||
491 | case TCG_COND_EQ: | |
492 | case TCG_COND_NE: | |
493 | /* For == or !=, we can simply mask off the sign bit and compare. */ | |
494 | tcg_gen_andi_i64(dest, src, mzero - 1); | |
495 | break; | |
496 | ||
497 | case TCG_COND_GE: | |
498 | case TCG_COND_LT: | |
499 | /* For >= or <, map -0.0 to +0.0 via comparison and mask. */ | |
500 | tcg_gen_setcondi_i64(TCG_COND_NE, dest, src, mzero); | |
501 | tcg_gen_neg_i64(dest, dest); | |
502 | tcg_gen_and_i64(dest, dest, src); | |
503 | break; | |
504 | ||
505 | default: | |
506 | abort(); | |
507 | } | |
508 | } | |
509 | ||
510 | static ExitStatus gen_fbcond(DisasContext *ctx, TCGCond cond, int ra, | |
511 | int32_t disp) | |
512 | { | |
513 | TCGv cmp_tmp; | |
514 | ||
515 | if (unlikely(ra == 31)) { | |
516 | /* Very uncommon case, but easier to optimize it to an integer | |
517 | comparison than continuing with the floating point comparison. */ | |
518 | return gen_bcond(ctx, cond, ra, disp, 0); | |
519 | } | |
520 | ||
521 | cmp_tmp = tcg_temp_new(); | |
522 | gen_fold_mzero(cond, cmp_tmp, cpu_fir[ra]); | |
523 | return gen_bcond_internal(ctx, cond, cmp_tmp, disp); | |
524 | } | |
525 | ||
526 | static void gen_cmov(TCGCond cond, int ra, int rb, int rc, | |
527 | int islit, uint8_t lit, int mask) | |
528 | { | |
529 | TCGCond inv_cond = tcg_invert_cond(cond); | |
530 | int l1; | |
531 | ||
532 | if (unlikely(rc == 31)) | |
533 | return; | |
534 | ||
535 | l1 = gen_new_label(); | |
536 | ||
537 | if (ra != 31) { | |
538 | if (mask) { | |
539 | TCGv tmp = tcg_temp_new(); | |
540 | tcg_gen_andi_i64(tmp, cpu_ir[ra], 1); | |
541 | tcg_gen_brcondi_i64(inv_cond, tmp, 0, l1); | |
542 | tcg_temp_free(tmp); | |
543 | } else | |
544 | tcg_gen_brcondi_i64(inv_cond, cpu_ir[ra], 0, l1); | |
545 | } else { | |
546 | /* Very uncommon case - Do not bother to optimize. */ | |
547 | TCGv tmp = tcg_const_i64(0); | |
548 | tcg_gen_brcondi_i64(inv_cond, tmp, 0, l1); | |
549 | tcg_temp_free(tmp); | |
550 | } | |
551 | ||
552 | if (islit) | |
553 | tcg_gen_movi_i64(cpu_ir[rc], lit); | |
554 | else | |
555 | tcg_gen_mov_i64(cpu_ir[rc], cpu_ir[rb]); | |
556 | gen_set_label(l1); | |
557 | } | |
558 | ||
559 | static void gen_fcmov(TCGCond cond, int ra, int rb, int rc) | |
560 | { | |
561 | TCGv cmp_tmp; | |
562 | int l1; | |
563 | ||
564 | if (unlikely(rc == 31)) { | |
565 | return; | |
566 | } | |
567 | ||
568 | cmp_tmp = tcg_temp_new(); | |
569 | if (unlikely(ra == 31)) { | |
570 | tcg_gen_movi_i64(cmp_tmp, 0); | |
571 | } else { | |
572 | gen_fold_mzero(cond, cmp_tmp, cpu_fir[ra]); | |
573 | } | |
574 | ||
575 | l1 = gen_new_label(); | |
576 | tcg_gen_brcondi_i64(tcg_invert_cond(cond), cmp_tmp, 0, l1); | |
577 | tcg_temp_free(cmp_tmp); | |
578 | ||
579 | if (rb != 31) | |
580 | tcg_gen_mov_i64(cpu_fir[rc], cpu_fir[rb]); | |
581 | else | |
582 | tcg_gen_movi_i64(cpu_fir[rc], 0); | |
583 | gen_set_label(l1); | |
584 | } | |
585 | ||
586 | #define QUAL_RM_N 0x080 /* Round mode nearest even */ | |
587 | #define QUAL_RM_C 0x000 /* Round mode chopped */ | |
588 | #define QUAL_RM_M 0x040 /* Round mode minus infinity */ | |
589 | #define QUAL_RM_D 0x0c0 /* Round mode dynamic */ | |
590 | #define QUAL_RM_MASK 0x0c0 | |
591 | ||
592 | #define QUAL_U 0x100 /* Underflow enable (fp output) */ | |
593 | #define QUAL_V 0x100 /* Overflow enable (int output) */ | |
594 | #define QUAL_S 0x400 /* Software completion enable */ | |
595 | #define QUAL_I 0x200 /* Inexact detection enable */ | |
596 | ||
597 | static void gen_qual_roundmode(DisasContext *ctx, int fn11) | |
598 | { | |
599 | TCGv_i32 tmp; | |
600 | ||
601 | fn11 &= QUAL_RM_MASK; | |
602 | if (fn11 == ctx->tb_rm) { | |
603 | return; | |
604 | } | |
605 | ctx->tb_rm = fn11; | |
606 | ||
607 | tmp = tcg_temp_new_i32(); | |
608 | switch (fn11) { | |
609 | case QUAL_RM_N: | |
610 | tcg_gen_movi_i32(tmp, float_round_nearest_even); | |
611 | break; | |
612 | case QUAL_RM_C: | |
613 | tcg_gen_movi_i32(tmp, float_round_to_zero); | |
614 | break; | |
615 | case QUAL_RM_M: | |
616 | tcg_gen_movi_i32(tmp, float_round_down); | |
617 | break; | |
618 | case QUAL_RM_D: | |
619 | tcg_gen_ld8u_i32(tmp, cpu_env, offsetof(CPUState, fpcr_dyn_round)); | |
620 | break; | |
621 | } | |
622 | ||
623 | #if defined(CONFIG_SOFTFLOAT_INLINE) | |
624 | /* ??? The "softfloat.h" interface is to call set_float_rounding_mode. | |
625 | With CONFIG_SOFTFLOAT that expands to an out-of-line call that just | |
626 | sets the one field. */ | |
627 | tcg_gen_st8_i32(tmp, cpu_env, | |
628 | offsetof(CPUState, fp_status.float_rounding_mode)); | |
629 | #else | |
630 | gen_helper_setroundmode(tmp); | |
631 | #endif | |
632 | ||
633 | tcg_temp_free_i32(tmp); | |
634 | } | |
635 | ||
636 | static void gen_qual_flushzero(DisasContext *ctx, int fn11) | |
637 | { | |
638 | TCGv_i32 tmp; | |
639 | ||
640 | fn11 &= QUAL_U; | |
641 | if (fn11 == ctx->tb_ftz) { | |
642 | return; | |
643 | } | |
644 | ctx->tb_ftz = fn11; | |
645 | ||
646 | tmp = tcg_temp_new_i32(); | |
647 | if (fn11) { | |
648 | /* Underflow is enabled, use the FPCR setting. */ | |
649 | tcg_gen_ld8u_i32(tmp, cpu_env, offsetof(CPUState, fpcr_flush_to_zero)); | |
650 | } else { | |
651 | /* Underflow is disabled, force flush-to-zero. */ | |
652 | tcg_gen_movi_i32(tmp, 1); | |
653 | } | |
654 | ||
655 | #if defined(CONFIG_SOFTFLOAT_INLINE) | |
656 | tcg_gen_st8_i32(tmp, cpu_env, | |
657 | offsetof(CPUState, fp_status.flush_to_zero)); | |
658 | #else | |
659 | gen_helper_setflushzero(tmp); | |
660 | #endif | |
661 | ||
662 | tcg_temp_free_i32(tmp); | |
663 | } | |
664 | ||
665 | static TCGv gen_ieee_input(int reg, int fn11, int is_cmp) | |
666 | { | |
667 | TCGv val = tcg_temp_new(); | |
668 | if (reg == 31) { | |
669 | tcg_gen_movi_i64(val, 0); | |
670 | } else if (fn11 & QUAL_S) { | |
671 | gen_helper_ieee_input_s(val, cpu_fir[reg]); | |
672 | } else if (is_cmp) { | |
673 | gen_helper_ieee_input_cmp(val, cpu_fir[reg]); | |
674 | } else { | |
675 | gen_helper_ieee_input(val, cpu_fir[reg]); | |
676 | } | |
677 | return val; | |
678 | } | |
679 | ||
680 | static void gen_fp_exc_clear(void) | |
681 | { | |
682 | #if defined(CONFIG_SOFTFLOAT_INLINE) | |
683 | TCGv_i32 zero = tcg_const_i32(0); | |
684 | tcg_gen_st8_i32(zero, cpu_env, | |
685 | offsetof(CPUState, fp_status.float_exception_flags)); | |
686 | tcg_temp_free_i32(zero); | |
687 | #else | |
688 | gen_helper_fp_exc_clear(); | |
689 | #endif | |
690 | } | |
691 | ||
692 | static void gen_fp_exc_raise_ignore(int rc, int fn11, int ignore) | |
693 | { | |
694 | /* ??? We ought to be able to do something with imprecise exceptions. | |
695 | E.g. notice we're still in the trap shadow of something within the | |
696 | TB and do not generate the code to signal the exception; end the TB | |
697 | when an exception is forced to arrive, either by consumption of a | |
698 | register value or TRAPB or EXCB. */ | |
699 | TCGv_i32 exc = tcg_temp_new_i32(); | |
700 | TCGv_i32 reg; | |
701 | ||
702 | #if defined(CONFIG_SOFTFLOAT_INLINE) | |
703 | tcg_gen_ld8u_i32(exc, cpu_env, | |
704 | offsetof(CPUState, fp_status.float_exception_flags)); | |
705 | #else | |
706 | gen_helper_fp_exc_get(exc); | |
707 | #endif | |
708 | ||
709 | if (ignore) { | |
710 | tcg_gen_andi_i32(exc, exc, ~ignore); | |
711 | } | |
712 | ||
713 | /* ??? Pass in the regno of the destination so that the helper can | |
714 | set EXC_MASK, which contains a bitmask of destination registers | |
715 | that have caused arithmetic traps. A simple userspace emulation | |
716 | does not require this. We do need it for a guest kernel's entArith, | |
717 | or if we were to do something clever with imprecise exceptions. */ | |
718 | reg = tcg_const_i32(rc + 32); | |
719 | ||
720 | if (fn11 & QUAL_S) { | |
721 | gen_helper_fp_exc_raise_s(exc, reg); | |
722 | } else { | |
723 | gen_helper_fp_exc_raise(exc, reg); | |
724 | } | |
725 | ||
726 | tcg_temp_free_i32(reg); | |
727 | tcg_temp_free_i32(exc); | |
728 | } | |
729 | ||
730 | static inline void gen_fp_exc_raise(int rc, int fn11) | |
731 | { | |
732 | gen_fp_exc_raise_ignore(rc, fn11, fn11 & QUAL_I ? 0 : float_flag_inexact); | |
733 | } | |
734 | ||
735 | static void gen_fcvtlq(int rb, int rc) | |
736 | { | |
737 | if (unlikely(rc == 31)) { | |
738 | return; | |
739 | } | |
740 | if (unlikely(rb == 31)) { | |
741 | tcg_gen_movi_i64(cpu_fir[rc], 0); | |
742 | } else { | |
743 | TCGv tmp = tcg_temp_new(); | |
744 | ||
745 | /* The arithmetic right shift here, plus the sign-extended mask below | |
746 | yields a sign-extended result without an explicit ext32s_i64. */ | |
747 | tcg_gen_sari_i64(tmp, cpu_fir[rb], 32); | |
748 | tcg_gen_shri_i64(cpu_fir[rc], cpu_fir[rb], 29); | |
749 | tcg_gen_andi_i64(tmp, tmp, (int32_t)0xc0000000); | |
750 | tcg_gen_andi_i64(cpu_fir[rc], cpu_fir[rc], 0x3fffffff); | |
751 | tcg_gen_or_i64(cpu_fir[rc], cpu_fir[rc], tmp); | |
752 | ||
753 | tcg_temp_free(tmp); | |
754 | } | |
755 | } | |
756 | ||
757 | static void gen_fcvtql(int rb, int rc) | |
758 | { | |
759 | if (unlikely(rc == 31)) { | |
760 | return; | |
761 | } | |
762 | if (unlikely(rb == 31)) { | |
763 | tcg_gen_movi_i64(cpu_fir[rc], 0); | |
764 | } else { | |
765 | TCGv tmp = tcg_temp_new(); | |
766 | ||
767 | tcg_gen_andi_i64(tmp, cpu_fir[rb], 0xC0000000); | |
768 | tcg_gen_andi_i64(cpu_fir[rc], cpu_fir[rb], 0x3FFFFFFF); | |
769 | tcg_gen_shli_i64(tmp, tmp, 32); | |
770 | tcg_gen_shli_i64(cpu_fir[rc], cpu_fir[rc], 29); | |
771 | tcg_gen_or_i64(cpu_fir[rc], cpu_fir[rc], tmp); | |
772 | ||
773 | tcg_temp_free(tmp); | |
774 | } | |
775 | } | |
776 | ||
777 | static void gen_fcvtql_v(DisasContext *ctx, int rb, int rc) | |
778 | { | |
779 | if (rb != 31) { | |
780 | int lab = gen_new_label(); | |
781 | TCGv tmp = tcg_temp_new(); | |
782 | ||
783 | tcg_gen_ext32s_i64(tmp, cpu_fir[rb]); | |
784 | tcg_gen_brcond_i64(TCG_COND_EQ, tmp, cpu_fir[rb], lab); | |
785 | gen_excp(ctx, EXCP_ARITH, EXC_M_IOV); | |
786 | ||
787 | gen_set_label(lab); | |
788 | } | |
789 | gen_fcvtql(rb, rc); | |
790 | } | |
791 | ||
792 | #define FARITH2(name) \ | |
793 | static inline void glue(gen_f, name)(int rb, int rc) \ | |
794 | { \ | |
795 | if (unlikely(rc == 31)) { \ | |
796 | return; \ | |
797 | } \ | |
798 | if (rb != 31) { \ | |
799 | gen_helper_ ## name (cpu_fir[rc], cpu_fir[rb]); \ | |
800 | } else { \ | |
801 | TCGv tmp = tcg_const_i64(0); \ | |
802 | gen_helper_ ## name (cpu_fir[rc], tmp); \ | |
803 | tcg_temp_free(tmp); \ | |
804 | } \ | |
805 | } | |
806 | ||
807 | /* ??? VAX instruction qualifiers ignored. */ | |
808 | FARITH2(sqrtf) | |
809 | FARITH2(sqrtg) | |
810 | FARITH2(cvtgf) | |
811 | FARITH2(cvtgq) | |
812 | FARITH2(cvtqf) | |
813 | FARITH2(cvtqg) | |
814 | ||
815 | static void gen_ieee_arith2(DisasContext *ctx, void (*helper)(TCGv, TCGv), | |
816 | int rb, int rc, int fn11) | |
817 | { | |
818 | TCGv vb; | |
819 | ||
820 | /* ??? This is wrong: the instruction is not a nop, it still may | |
821 | raise exceptions. */ | |
822 | if (unlikely(rc == 31)) { | |
823 | return; | |
824 | } | |
825 | ||
826 | gen_qual_roundmode(ctx, fn11); | |
827 | gen_qual_flushzero(ctx, fn11); | |
828 | gen_fp_exc_clear(); | |
829 | ||
830 | vb = gen_ieee_input(rb, fn11, 0); | |
831 | helper(cpu_fir[rc], vb); | |
832 | tcg_temp_free(vb); | |
833 | ||
834 | gen_fp_exc_raise(rc, fn11); | |
835 | } | |
836 | ||
837 | #define IEEE_ARITH2(name) \ | |
838 | static inline void glue(gen_f, name)(DisasContext *ctx, \ | |
839 | int rb, int rc, int fn11) \ | |
840 | { \ | |
841 | gen_ieee_arith2(ctx, gen_helper_##name, rb, rc, fn11); \ | |
842 | } | |
843 | IEEE_ARITH2(sqrts) | |
844 | IEEE_ARITH2(sqrtt) | |
845 | IEEE_ARITH2(cvtst) | |
846 | IEEE_ARITH2(cvtts) | |
847 | ||
848 | static void gen_fcvttq(DisasContext *ctx, int rb, int rc, int fn11) | |
849 | { | |
850 | TCGv vb; | |
851 | int ignore = 0; | |
852 | ||
853 | /* ??? This is wrong: the instruction is not a nop, it still may | |
854 | raise exceptions. */ | |
855 | if (unlikely(rc == 31)) { | |
856 | return; | |
857 | } | |
858 | ||
859 | /* No need to set flushzero, since we have an integer output. */ | |
860 | gen_fp_exc_clear(); | |
861 | vb = gen_ieee_input(rb, fn11, 0); | |
862 | ||
863 | /* Almost all integer conversions use cropped rounding, and most | |
864 | also do not have integer overflow enabled. Special case that. */ | |
865 | switch (fn11) { | |
866 | case QUAL_RM_C: | |
867 | gen_helper_cvttq_c(cpu_fir[rc], vb); | |
868 | break; | |
869 | case QUAL_V | QUAL_RM_C: | |
870 | case QUAL_S | QUAL_V | QUAL_RM_C: | |
871 | ignore = float_flag_inexact; | |
872 | /* FALLTHRU */ | |
873 | case QUAL_S | QUAL_V | QUAL_I | QUAL_RM_C: | |
874 | gen_helper_cvttq_svic(cpu_fir[rc], vb); | |
875 | break; | |
876 | default: | |
877 | gen_qual_roundmode(ctx, fn11); | |
878 | gen_helper_cvttq(cpu_fir[rc], vb); | |
879 | ignore |= (fn11 & QUAL_V ? 0 : float_flag_overflow); | |
880 | ignore |= (fn11 & QUAL_I ? 0 : float_flag_inexact); | |
881 | break; | |
882 | } | |
883 | tcg_temp_free(vb); | |
884 | ||
885 | gen_fp_exc_raise_ignore(rc, fn11, ignore); | |
886 | } | |
887 | ||
888 | static void gen_ieee_intcvt(DisasContext *ctx, void (*helper)(TCGv, TCGv), | |
889 | int rb, int rc, int fn11) | |
890 | { | |
891 | TCGv vb; | |
892 | ||
893 | /* ??? This is wrong: the instruction is not a nop, it still may | |
894 | raise exceptions. */ | |
895 | if (unlikely(rc == 31)) { | |
896 | return; | |
897 | } | |
898 | ||
899 | gen_qual_roundmode(ctx, fn11); | |
900 | ||
901 | if (rb == 31) { | |
902 | vb = tcg_const_i64(0); | |
903 | } else { | |
904 | vb = cpu_fir[rb]; | |
905 | } | |
906 | ||
907 | /* The only exception that can be raised by integer conversion | |
908 | is inexact. Thus we only need to worry about exceptions when | |
909 | inexact handling is requested. */ | |
910 | if (fn11 & QUAL_I) { | |
911 | gen_fp_exc_clear(); | |
912 | helper(cpu_fir[rc], vb); | |
913 | gen_fp_exc_raise(rc, fn11); | |
914 | } else { | |
915 | helper(cpu_fir[rc], vb); | |
916 | } | |
917 | ||
918 | if (rb == 31) { | |
919 | tcg_temp_free(vb); | |
920 | } | |
921 | } | |
922 | ||
923 | #define IEEE_INTCVT(name) \ | |
924 | static inline void glue(gen_f, name)(DisasContext *ctx, \ | |
925 | int rb, int rc, int fn11) \ | |
926 | { \ | |
927 | gen_ieee_intcvt(ctx, gen_helper_##name, rb, rc, fn11); \ | |
928 | } | |
929 | IEEE_INTCVT(cvtqs) | |
930 | IEEE_INTCVT(cvtqt) | |
931 | ||
932 | static void gen_cpys_internal(int ra, int rb, int rc, int inv_a, uint64_t mask) | |
933 | { | |
934 | TCGv va, vb, vmask; | |
935 | int za = 0, zb = 0; | |
936 | ||
937 | if (unlikely(rc == 31)) { | |
938 | return; | |
939 | } | |
940 | ||
941 | vmask = tcg_const_i64(mask); | |
942 | ||
943 | TCGV_UNUSED_I64(va); | |
944 | if (ra == 31) { | |
945 | if (inv_a) { | |
946 | va = vmask; | |
947 | } else { | |
948 | za = 1; | |
949 | } | |
950 | } else { | |
951 | va = tcg_temp_new_i64(); | |
952 | tcg_gen_mov_i64(va, cpu_fir[ra]); | |
953 | if (inv_a) { | |
954 | tcg_gen_andc_i64(va, vmask, va); | |
955 | } else { | |
956 | tcg_gen_and_i64(va, va, vmask); | |
957 | } | |
958 | } | |
959 | ||
960 | TCGV_UNUSED_I64(vb); | |
961 | if (rb == 31) { | |
962 | zb = 1; | |
963 | } else { | |
964 | vb = tcg_temp_new_i64(); | |
965 | tcg_gen_andc_i64(vb, cpu_fir[rb], vmask); | |
966 | } | |
967 | ||
968 | switch (za << 1 | zb) { | |
969 | case 0 | 0: | |
970 | tcg_gen_or_i64(cpu_fir[rc], va, vb); | |
971 | break; | |
972 | case 0 | 1: | |
973 | tcg_gen_mov_i64(cpu_fir[rc], va); | |
974 | break; | |
975 | case 2 | 0: | |
976 | tcg_gen_mov_i64(cpu_fir[rc], vb); | |
977 | break; | |
978 | case 2 | 1: | |
979 | tcg_gen_movi_i64(cpu_fir[rc], 0); | |
980 | break; | |
981 | } | |
982 | ||
983 | tcg_temp_free(vmask); | |
984 | if (ra != 31) { | |
985 | tcg_temp_free(va); | |
986 | } | |
987 | if (rb != 31) { | |
988 | tcg_temp_free(vb); | |
989 | } | |
990 | } | |
991 | ||
992 | static inline void gen_fcpys(int ra, int rb, int rc) | |
993 | { | |
994 | gen_cpys_internal(ra, rb, rc, 0, 0x8000000000000000ULL); | |
995 | } | |
996 | ||
997 | static inline void gen_fcpysn(int ra, int rb, int rc) | |
998 | { | |
999 | gen_cpys_internal(ra, rb, rc, 1, 0x8000000000000000ULL); | |
1000 | } | |
1001 | ||
1002 | static inline void gen_fcpyse(int ra, int rb, int rc) | |
1003 | { | |
1004 | gen_cpys_internal(ra, rb, rc, 0, 0xFFF0000000000000ULL); | |
1005 | } | |
1006 | ||
1007 | #define FARITH3(name) \ | |
1008 | static inline void glue(gen_f, name)(int ra, int rb, int rc) \ | |
1009 | { \ | |
1010 | TCGv va, vb; \ | |
1011 | \ | |
1012 | if (unlikely(rc == 31)) { \ | |
1013 | return; \ | |
1014 | } \ | |
1015 | if (ra == 31) { \ | |
1016 | va = tcg_const_i64(0); \ | |
1017 | } else { \ | |
1018 | va = cpu_fir[ra]; \ | |
1019 | } \ | |
1020 | if (rb == 31) { \ | |
1021 | vb = tcg_const_i64(0); \ | |
1022 | } else { \ | |
1023 | vb = cpu_fir[rb]; \ | |
1024 | } \ | |
1025 | \ | |
1026 | gen_helper_ ## name (cpu_fir[rc], va, vb); \ | |
1027 | \ | |
1028 | if (ra == 31) { \ | |
1029 | tcg_temp_free(va); \ | |
1030 | } \ | |
1031 | if (rb == 31) { \ | |
1032 | tcg_temp_free(vb); \ | |
1033 | } \ | |
1034 | } | |
1035 | ||
1036 | /* ??? VAX instruction qualifiers ignored. */ | |
1037 | FARITH3(addf) | |
1038 | FARITH3(subf) | |
1039 | FARITH3(mulf) | |
1040 | FARITH3(divf) | |
1041 | FARITH3(addg) | |
1042 | FARITH3(subg) | |
1043 | FARITH3(mulg) | |
1044 | FARITH3(divg) | |
1045 | FARITH3(cmpgeq) | |
1046 | FARITH3(cmpglt) | |
1047 | FARITH3(cmpgle) | |
1048 | ||
1049 | static void gen_ieee_arith3(DisasContext *ctx, | |
1050 | void (*helper)(TCGv, TCGv, TCGv), | |
1051 | int ra, int rb, int rc, int fn11) | |
1052 | { | |
1053 | TCGv va, vb; | |
1054 | ||
1055 | /* ??? This is wrong: the instruction is not a nop, it still may | |
1056 | raise exceptions. */ | |
1057 | if (unlikely(rc == 31)) { | |
1058 | return; | |
1059 | } | |
1060 | ||
1061 | gen_qual_roundmode(ctx, fn11); | |
1062 | gen_qual_flushzero(ctx, fn11); | |
1063 | gen_fp_exc_clear(); | |
1064 | ||
1065 | va = gen_ieee_input(ra, fn11, 0); | |
1066 | vb = gen_ieee_input(rb, fn11, 0); | |
1067 | helper(cpu_fir[rc], va, vb); | |
1068 | tcg_temp_free(va); | |
1069 | tcg_temp_free(vb); | |
1070 | ||
1071 | gen_fp_exc_raise(rc, fn11); | |
1072 | } | |
1073 | ||
1074 | #define IEEE_ARITH3(name) \ | |
1075 | static inline void glue(gen_f, name)(DisasContext *ctx, \ | |
1076 | int ra, int rb, int rc, int fn11) \ | |
1077 | { \ | |
1078 | gen_ieee_arith3(ctx, gen_helper_##name, ra, rb, rc, fn11); \ | |
1079 | } | |
1080 | IEEE_ARITH3(adds) | |
1081 | IEEE_ARITH3(subs) | |
1082 | IEEE_ARITH3(muls) | |
1083 | IEEE_ARITH3(divs) | |
1084 | IEEE_ARITH3(addt) | |
1085 | IEEE_ARITH3(subt) | |
1086 | IEEE_ARITH3(mult) | |
1087 | IEEE_ARITH3(divt) | |
1088 | ||
1089 | static void gen_ieee_compare(DisasContext *ctx, | |
1090 | void (*helper)(TCGv, TCGv, TCGv), | |
1091 | int ra, int rb, int rc, int fn11) | |
1092 | { | |
1093 | TCGv va, vb; | |
1094 | ||
1095 | /* ??? This is wrong: the instruction is not a nop, it still may | |
1096 | raise exceptions. */ | |
1097 | if (unlikely(rc == 31)) { | |
1098 | return; | |
1099 | } | |
1100 | ||
1101 | gen_fp_exc_clear(); | |
1102 | ||
1103 | va = gen_ieee_input(ra, fn11, 1); | |
1104 | vb = gen_ieee_input(rb, fn11, 1); | |
1105 | helper(cpu_fir[rc], va, vb); | |
1106 | tcg_temp_free(va); | |
1107 | tcg_temp_free(vb); | |
1108 | ||
1109 | gen_fp_exc_raise(rc, fn11); | |
1110 | } | |
1111 | ||
1112 | #define IEEE_CMP3(name) \ | |
1113 | static inline void glue(gen_f, name)(DisasContext *ctx, \ | |
1114 | int ra, int rb, int rc, int fn11) \ | |
1115 | { \ | |
1116 | gen_ieee_compare(ctx, gen_helper_##name, ra, rb, rc, fn11); \ | |
1117 | } | |
1118 | IEEE_CMP3(cmptun) | |
1119 | IEEE_CMP3(cmpteq) | |
1120 | IEEE_CMP3(cmptlt) | |
1121 | IEEE_CMP3(cmptle) | |
1122 | ||
1123 | static inline uint64_t zapnot_mask(uint8_t lit) | |
1124 | { | |
1125 | uint64_t mask = 0; | |
1126 | int i; | |
1127 | ||
1128 | for (i = 0; i < 8; ++i) { | |
1129 | if ((lit >> i) & 1) | |
1130 | mask |= 0xffull << (i * 8); | |
1131 | } | |
1132 | return mask; | |
1133 | } | |
1134 | ||
1135 | /* Implement zapnot with an immediate operand, which expands to some | |
1136 | form of immediate AND. This is a basic building block in the | |
1137 | definition of many of the other byte manipulation instructions. */ | |
1138 | static void gen_zapnoti(TCGv dest, TCGv src, uint8_t lit) | |
1139 | { | |
1140 | switch (lit) { | |
1141 | case 0x00: | |
1142 | tcg_gen_movi_i64(dest, 0); | |
1143 | break; | |
1144 | case 0x01: | |
1145 | tcg_gen_ext8u_i64(dest, src); | |
1146 | break; | |
1147 | case 0x03: | |
1148 | tcg_gen_ext16u_i64(dest, src); | |
1149 | break; | |
1150 | case 0x0f: | |
1151 | tcg_gen_ext32u_i64(dest, src); | |
1152 | break; | |
1153 | case 0xff: | |
1154 | tcg_gen_mov_i64(dest, src); | |
1155 | break; | |
1156 | default: | |
1157 | tcg_gen_andi_i64 (dest, src, zapnot_mask (lit)); | |
1158 | break; | |
1159 | } | |
1160 | } | |
1161 | ||
1162 | static inline void gen_zapnot(int ra, int rb, int rc, int islit, uint8_t lit) | |
1163 | { | |
1164 | if (unlikely(rc == 31)) | |
1165 | return; | |
1166 | else if (unlikely(ra == 31)) | |
1167 | tcg_gen_movi_i64(cpu_ir[rc], 0); | |
1168 | else if (islit) | |
1169 | gen_zapnoti(cpu_ir[rc], cpu_ir[ra], lit); | |
1170 | else | |
1171 | gen_helper_zapnot (cpu_ir[rc], cpu_ir[ra], cpu_ir[rb]); | |
1172 | } | |
1173 | ||
1174 | static inline void gen_zap(int ra, int rb, int rc, int islit, uint8_t lit) | |
1175 | { | |
1176 | if (unlikely(rc == 31)) | |
1177 | return; | |
1178 | else if (unlikely(ra == 31)) | |
1179 | tcg_gen_movi_i64(cpu_ir[rc], 0); | |
1180 | else if (islit) | |
1181 | gen_zapnoti(cpu_ir[rc], cpu_ir[ra], ~lit); | |
1182 | else | |
1183 | gen_helper_zap (cpu_ir[rc], cpu_ir[ra], cpu_ir[rb]); | |
1184 | } | |
1185 | ||
1186 | ||
1187 | /* EXTWH, EXTLH, EXTQH */ | |
1188 | static void gen_ext_h(int ra, int rb, int rc, int islit, | |
1189 | uint8_t lit, uint8_t byte_mask) | |
1190 | { | |
1191 | if (unlikely(rc == 31)) | |
1192 | return; | |
1193 | else if (unlikely(ra == 31)) | |
1194 | tcg_gen_movi_i64(cpu_ir[rc], 0); | |
1195 | else { | |
1196 | if (islit) { | |
1197 | lit = (64 - (lit & 7) * 8) & 0x3f; | |
1198 | tcg_gen_shli_i64(cpu_ir[rc], cpu_ir[ra], lit); | |
1199 | } else { | |
1200 | TCGv tmp1 = tcg_temp_new(); | |
1201 | tcg_gen_andi_i64(tmp1, cpu_ir[rb], 7); | |
1202 | tcg_gen_shli_i64(tmp1, tmp1, 3); | |
1203 | tcg_gen_neg_i64(tmp1, tmp1); | |
1204 | tcg_gen_andi_i64(tmp1, tmp1, 0x3f); | |
1205 | tcg_gen_shl_i64(cpu_ir[rc], cpu_ir[ra], tmp1); | |
1206 | tcg_temp_free(tmp1); | |
1207 | } | |
1208 | gen_zapnoti(cpu_ir[rc], cpu_ir[rc], byte_mask); | |
1209 | } | |
1210 | } | |
1211 | ||
1212 | /* EXTBL, EXTWL, EXTLL, EXTQL */ | |
1213 | static void gen_ext_l(int ra, int rb, int rc, int islit, | |
1214 | uint8_t lit, uint8_t byte_mask) | |
1215 | { | |
1216 | if (unlikely(rc == 31)) | |
1217 | return; | |
1218 | else if (unlikely(ra == 31)) | |
1219 | tcg_gen_movi_i64(cpu_ir[rc], 0); | |
1220 | else { | |
1221 | if (islit) { | |
1222 | tcg_gen_shri_i64(cpu_ir[rc], cpu_ir[ra], (lit & 7) * 8); | |
1223 | } else { | |
1224 | TCGv tmp = tcg_temp_new(); | |
1225 | tcg_gen_andi_i64(tmp, cpu_ir[rb], 7); | |
1226 | tcg_gen_shli_i64(tmp, tmp, 3); | |
1227 | tcg_gen_shr_i64(cpu_ir[rc], cpu_ir[ra], tmp); | |
1228 | tcg_temp_free(tmp); | |
1229 | } | |
1230 | gen_zapnoti(cpu_ir[rc], cpu_ir[rc], byte_mask); | |
1231 | } | |
1232 | } | |
1233 | ||
1234 | /* INSWH, INSLH, INSQH */ | |
1235 | static void gen_ins_h(int ra, int rb, int rc, int islit, | |
1236 | uint8_t lit, uint8_t byte_mask) | |
1237 | { | |
1238 | if (unlikely(rc == 31)) | |
1239 | return; | |
1240 | else if (unlikely(ra == 31) || (islit && (lit & 7) == 0)) | |
1241 | tcg_gen_movi_i64(cpu_ir[rc], 0); | |
1242 | else { | |
1243 | TCGv tmp = tcg_temp_new(); | |
1244 | ||
1245 | /* The instruction description has us left-shift the byte mask | |
1246 | and extract bits <15:8> and apply that zap at the end. This | |
1247 | is equivalent to simply performing the zap first and shifting | |
1248 | afterward. */ | |
1249 | gen_zapnoti (tmp, cpu_ir[ra], byte_mask); | |
1250 | ||
1251 | if (islit) { | |
1252 | /* Note that we have handled the lit==0 case above. */ | |
1253 | tcg_gen_shri_i64 (cpu_ir[rc], tmp, 64 - (lit & 7) * 8); | |
1254 | } else { | |
1255 | TCGv shift = tcg_temp_new(); | |
1256 | ||
1257 | /* If (B & 7) == 0, we need to shift by 64 and leave a zero. | |
1258 | Do this portably by splitting the shift into two parts: | |
1259 | shift_count-1 and 1. Arrange for the -1 by using | |
1260 | ones-complement instead of twos-complement in the negation: | |
1261 | ~((B & 7) * 8) & 63. */ | |
1262 | ||
1263 | tcg_gen_andi_i64(shift, cpu_ir[rb], 7); | |
1264 | tcg_gen_shli_i64(shift, shift, 3); | |
1265 | tcg_gen_not_i64(shift, shift); | |
1266 | tcg_gen_andi_i64(shift, shift, 0x3f); | |
1267 | ||
1268 | tcg_gen_shr_i64(cpu_ir[rc], tmp, shift); | |
1269 | tcg_gen_shri_i64(cpu_ir[rc], cpu_ir[rc], 1); | |
1270 | tcg_temp_free(shift); | |
1271 | } | |
1272 | tcg_temp_free(tmp); | |
1273 | } | |
1274 | } | |
1275 | ||
1276 | /* INSBL, INSWL, INSLL, INSQL */ | |
1277 | static void gen_ins_l(int ra, int rb, int rc, int islit, | |
1278 | uint8_t lit, uint8_t byte_mask) | |
1279 | { | |
1280 | if (unlikely(rc == 31)) | |
1281 | return; | |
1282 | else if (unlikely(ra == 31)) | |
1283 | tcg_gen_movi_i64(cpu_ir[rc], 0); | |
1284 | else { | |
1285 | TCGv tmp = tcg_temp_new(); | |
1286 | ||
1287 | /* The instruction description has us left-shift the byte mask | |
1288 | the same number of byte slots as the data and apply the zap | |
1289 | at the end. This is equivalent to simply performing the zap | |
1290 | first and shifting afterward. */ | |
1291 | gen_zapnoti (tmp, cpu_ir[ra], byte_mask); | |
1292 | ||
1293 | if (islit) { | |
1294 | tcg_gen_shli_i64(cpu_ir[rc], tmp, (lit & 7) * 8); | |
1295 | } else { | |
1296 | TCGv shift = tcg_temp_new(); | |
1297 | tcg_gen_andi_i64(shift, cpu_ir[rb], 7); | |
1298 | tcg_gen_shli_i64(shift, shift, 3); | |
1299 | tcg_gen_shl_i64(cpu_ir[rc], tmp, shift); | |
1300 | tcg_temp_free(shift); | |
1301 | } | |
1302 | tcg_temp_free(tmp); | |
1303 | } | |
1304 | } | |
1305 | ||
1306 | /* MSKWH, MSKLH, MSKQH */ | |
1307 | static void gen_msk_h(int ra, int rb, int rc, int islit, | |
1308 | uint8_t lit, uint8_t byte_mask) | |
1309 | { | |
1310 | if (unlikely(rc == 31)) | |
1311 | return; | |
1312 | else if (unlikely(ra == 31)) | |
1313 | tcg_gen_movi_i64(cpu_ir[rc], 0); | |
1314 | else if (islit) { | |
1315 | gen_zapnoti (cpu_ir[rc], cpu_ir[ra], ~((byte_mask << (lit & 7)) >> 8)); | |
1316 | } else { | |
1317 | TCGv shift = tcg_temp_new(); | |
1318 | TCGv mask = tcg_temp_new(); | |
1319 | ||
1320 | /* The instruction description is as above, where the byte_mask | |
1321 | is shifted left, and then we extract bits <15:8>. This can be | |
1322 | emulated with a right-shift on the expanded byte mask. This | |
1323 | requires extra care because for an input <2:0> == 0 we need a | |
1324 | shift of 64 bits in order to generate a zero. This is done by | |
1325 | splitting the shift into two parts, the variable shift - 1 | |
1326 | followed by a constant 1 shift. The code we expand below is | |
1327 | equivalent to ~((B & 7) * 8) & 63. */ | |
1328 | ||
1329 | tcg_gen_andi_i64(shift, cpu_ir[rb], 7); | |
1330 | tcg_gen_shli_i64(shift, shift, 3); | |
1331 | tcg_gen_not_i64(shift, shift); | |
1332 | tcg_gen_andi_i64(shift, shift, 0x3f); | |
1333 | tcg_gen_movi_i64(mask, zapnot_mask (byte_mask)); | |
1334 | tcg_gen_shr_i64(mask, mask, shift); | |
1335 | tcg_gen_shri_i64(mask, mask, 1); | |
1336 | ||
1337 | tcg_gen_andc_i64(cpu_ir[rc], cpu_ir[ra], mask); | |
1338 | ||
1339 | tcg_temp_free(mask); | |
1340 | tcg_temp_free(shift); | |
1341 | } | |
1342 | } | |
1343 | ||
1344 | /* MSKBL, MSKWL, MSKLL, MSKQL */ | |
1345 | static void gen_msk_l(int ra, int rb, int rc, int islit, | |
1346 | uint8_t lit, uint8_t byte_mask) | |
1347 | { | |
1348 | if (unlikely(rc == 31)) | |
1349 | return; | |
1350 | else if (unlikely(ra == 31)) | |
1351 | tcg_gen_movi_i64(cpu_ir[rc], 0); | |
1352 | else if (islit) { | |
1353 | gen_zapnoti (cpu_ir[rc], cpu_ir[ra], ~(byte_mask << (lit & 7))); | |
1354 | } else { | |
1355 | TCGv shift = tcg_temp_new(); | |
1356 | TCGv mask = tcg_temp_new(); | |
1357 | ||
1358 | tcg_gen_andi_i64(shift, cpu_ir[rb], 7); | |
1359 | tcg_gen_shli_i64(shift, shift, 3); | |
1360 | tcg_gen_movi_i64(mask, zapnot_mask (byte_mask)); | |
1361 | tcg_gen_shl_i64(mask, mask, shift); | |
1362 | ||
1363 | tcg_gen_andc_i64(cpu_ir[rc], cpu_ir[ra], mask); | |
1364 | ||
1365 | tcg_temp_free(mask); | |
1366 | tcg_temp_free(shift); | |
1367 | } | |
1368 | } | |
1369 | ||
1370 | /* Code to call arith3 helpers */ | |
1371 | #define ARITH3(name) \ | |
1372 | static inline void glue(gen_, name)(int ra, int rb, int rc, int islit,\ | |
1373 | uint8_t lit) \ | |
1374 | { \ | |
1375 | if (unlikely(rc == 31)) \ | |
1376 | return; \ | |
1377 | \ | |
1378 | if (ra != 31) { \ | |
1379 | if (islit) { \ | |
1380 | TCGv tmp = tcg_const_i64(lit); \ | |
1381 | gen_helper_ ## name(cpu_ir[rc], cpu_ir[ra], tmp); \ | |
1382 | tcg_temp_free(tmp); \ | |
1383 | } else \ | |
1384 | gen_helper_ ## name (cpu_ir[rc], cpu_ir[ra], cpu_ir[rb]); \ | |
1385 | } else { \ | |
1386 | TCGv tmp1 = tcg_const_i64(0); \ | |
1387 | if (islit) { \ | |
1388 | TCGv tmp2 = tcg_const_i64(lit); \ | |
1389 | gen_helper_ ## name (cpu_ir[rc], tmp1, tmp2); \ | |
1390 | tcg_temp_free(tmp2); \ | |
1391 | } else \ | |
1392 | gen_helper_ ## name (cpu_ir[rc], tmp1, cpu_ir[rb]); \ | |
1393 | tcg_temp_free(tmp1); \ | |
1394 | } \ | |
1395 | } | |
1396 | ARITH3(cmpbge) | |
1397 | ARITH3(addlv) | |
1398 | ARITH3(sublv) | |
1399 | ARITH3(addqv) | |
1400 | ARITH3(subqv) | |
1401 | ARITH3(umulh) | |
1402 | ARITH3(mullv) | |
1403 | ARITH3(mulqv) | |
1404 | ARITH3(minub8) | |
1405 | ARITH3(minsb8) | |
1406 | ARITH3(minuw4) | |
1407 | ARITH3(minsw4) | |
1408 | ARITH3(maxub8) | |
1409 | ARITH3(maxsb8) | |
1410 | ARITH3(maxuw4) | |
1411 | ARITH3(maxsw4) | |
1412 | ARITH3(perr) | |
1413 | ||
1414 | #define MVIOP2(name) \ | |
1415 | static inline void glue(gen_, name)(int rb, int rc) \ | |
1416 | { \ | |
1417 | if (unlikely(rc == 31)) \ | |
1418 | return; \ | |
1419 | if (unlikely(rb == 31)) \ | |
1420 | tcg_gen_movi_i64(cpu_ir[rc], 0); \ | |
1421 | else \ | |
1422 | gen_helper_ ## name (cpu_ir[rc], cpu_ir[rb]); \ | |
1423 | } | |
1424 | MVIOP2(pklb) | |
1425 | MVIOP2(pkwb) | |
1426 | MVIOP2(unpkbl) | |
1427 | MVIOP2(unpkbw) | |
1428 | ||
1429 | static void gen_cmp(TCGCond cond, int ra, int rb, int rc, | |
1430 | int islit, uint8_t lit) | |
1431 | { | |
1432 | TCGv va, vb; | |
1433 | ||
1434 | if (unlikely(rc == 31)) { | |
1435 | return; | |
1436 | } | |
1437 | ||
1438 | if (ra == 31) { | |
1439 | va = tcg_const_i64(0); | |
1440 | } else { | |
1441 | va = cpu_ir[ra]; | |
1442 | } | |
1443 | if (islit) { | |
1444 | vb = tcg_const_i64(lit); | |
1445 | } else { | |
1446 | vb = cpu_ir[rb]; | |
1447 | } | |
1448 | ||
1449 | tcg_gen_setcond_i64(cond, cpu_ir[rc], va, vb); | |
1450 | ||
1451 | if (ra == 31) { | |
1452 | tcg_temp_free(va); | |
1453 | } | |
1454 | if (islit) { | |
1455 | tcg_temp_free(vb); | |
1456 | } | |
1457 | } | |
1458 | ||
1459 | static void gen_rx(int ra, int set) | |
1460 | { | |
1461 | TCGv_i32 tmp; | |
1462 | ||
1463 | if (ra != 31) { | |
1464 | tcg_gen_ld8u_i64(cpu_ir[ra], cpu_env, offsetof(CPUState, intr_flag)); | |
1465 | } | |
1466 | ||
1467 | tmp = tcg_const_i32(set); | |
1468 | tcg_gen_st8_i32(tmp, cpu_env, offsetof(CPUState, intr_flag)); | |
1469 | tcg_temp_free_i32(tmp); | |
1470 | } | |
1471 | ||
1472 | static ExitStatus gen_call_pal(DisasContext *ctx, int palcode) | |
1473 | { | |
1474 | /* We're emulating OSF/1 PALcode. Many of these are trivial access | |
1475 | to internal cpu registers. */ | |
1476 | ||
1477 | /* Unprivileged PAL call */ | |
1478 | if (palcode >= 0x80 && palcode < 0xC0) { | |
1479 | switch (palcode) { | |
1480 | case 0x86: | |
1481 | /* IMB */ | |
1482 | /* No-op inside QEMU. */ | |
1483 | break; | |
1484 | case 0x9E: | |
1485 | /* RDUNIQUE */ | |
1486 | tcg_gen_mov_i64(cpu_ir[IR_V0], cpu_unique); | |
1487 | break; | |
1488 | case 0x9F: | |
1489 | /* WRUNIQUE */ | |
1490 | tcg_gen_mov_i64(cpu_unique, cpu_ir[IR_A0]); | |
1491 | break; | |
1492 | default: | |
1493 | return gen_excp(ctx, EXCP_CALL_PAL, palcode & 0xbf); | |
1494 | } | |
1495 | return NO_EXIT; | |
1496 | } | |
1497 | ||
1498 | #ifndef CONFIG_USER_ONLY | |
1499 | /* Privileged PAL code */ | |
1500 | if (palcode < 0x40 && (ctx->tb->flags & TB_FLAGS_USER_MODE) == 0) { | |
1501 | switch (palcode) { | |
1502 | case 0x01: | |
1503 | /* CFLUSH */ | |
1504 | /* No-op inside QEMU. */ | |
1505 | break; | |
1506 | case 0x02: | |
1507 | /* DRAINA */ | |
1508 | /* No-op inside QEMU. */ | |
1509 | break; | |
1510 | case 0x2D: | |
1511 | /* WRVPTPTR */ | |
1512 | tcg_gen_st_i64(cpu_ir[IR_A0], cpu_env, offsetof(CPUState, vptptr)); | |
1513 | break; | |
1514 | case 0x31: | |
1515 | /* WRVAL */ | |
1516 | tcg_gen_mov_i64(cpu_sysval, cpu_ir[IR_A0]); | |
1517 | break; | |
1518 | case 0x32: | |
1519 | /* RDVAL */ | |
1520 | tcg_gen_mov_i64(cpu_ir[IR_V0], cpu_sysval); | |
1521 | break; | |
1522 | ||
1523 | case 0x35: { | |
1524 | /* SWPIPL */ | |
1525 | TCGv tmp; | |
1526 | ||
1527 | /* Note that we already know we're in kernel mode, so we know | |
1528 | that PS only contains the 3 IPL bits. */ | |
1529 | tcg_gen_ld8u_i64(cpu_ir[IR_V0], cpu_env, offsetof(CPUState, ps)); | |
1530 | ||
1531 | /* But make sure and store only the 3 IPL bits from the user. */ | |
1532 | tmp = tcg_temp_new(); | |
1533 | tcg_gen_andi_i64(tmp, cpu_ir[IR_A0], PS_INT_MASK); | |
1534 | tcg_gen_st8_i64(tmp, cpu_env, offsetof(CPUState, ps)); | |
1535 | tcg_temp_free(tmp); | |
1536 | break; | |
1537 | } | |
1538 | ||
1539 | case 0x36: | |
1540 | /* RDPS */ | |
1541 | tcg_gen_ld8u_i64(cpu_ir[IR_V0], cpu_env, offsetof(CPUState, ps)); | |
1542 | break; | |
1543 | case 0x38: | |
1544 | /* WRUSP */ | |
1545 | tcg_gen_mov_i64(cpu_usp, cpu_ir[IR_A0]); | |
1546 | break; | |
1547 | case 0x3A: | |
1548 | /* RDUSP */ | |
1549 | tcg_gen_mov_i64(cpu_ir[IR_V0], cpu_usp); | |
1550 | break; | |
1551 | case 0x3C: | |
1552 | /* WHAMI */ | |
1553 | tcg_gen_ld32s_i64(cpu_ir[IR_V0], cpu_env, | |
1554 | offsetof(CPUState, cpu_index)); | |
1555 | break; | |
1556 | ||
1557 | default: | |
1558 | return gen_excp(ctx, EXCP_CALL_PAL, palcode & 0x3f); | |
1559 | } | |
1560 | return NO_EXIT; | |
1561 | } | |
1562 | #endif | |
1563 | ||
1564 | return gen_invalid(ctx); | |
1565 | } | |
1566 | ||
1567 | #ifndef CONFIG_USER_ONLY | |
1568 | ||
1569 | #define PR_BYTE 0x100000 | |
1570 | #define PR_LONG 0x200000 | |
1571 | ||
1572 | static int cpu_pr_data(int pr) | |
1573 | { | |
1574 | switch (pr) { | |
1575 | case 0: return offsetof(CPUAlphaState, ps) | PR_BYTE; | |
1576 | case 1: return offsetof(CPUAlphaState, fen) | PR_BYTE; | |
1577 | case 2: return offsetof(CPUAlphaState, pcc_ofs) | PR_LONG; | |
1578 | case 3: return offsetof(CPUAlphaState, trap_arg0); | |
1579 | case 4: return offsetof(CPUAlphaState, trap_arg1); | |
1580 | case 5: return offsetof(CPUAlphaState, trap_arg2); | |
1581 | case 6: return offsetof(CPUAlphaState, exc_addr); | |
1582 | case 7: return offsetof(CPUAlphaState, palbr); | |
1583 | case 8: return offsetof(CPUAlphaState, ptbr); | |
1584 | case 9: return offsetof(CPUAlphaState, vptptr); | |
1585 | case 10: return offsetof(CPUAlphaState, unique); | |
1586 | case 11: return offsetof(CPUAlphaState, sysval); | |
1587 | case 12: return offsetof(CPUAlphaState, usp); | |
1588 | ||
1589 | case 32 ... 39: | |
1590 | return offsetof(CPUAlphaState, shadow[pr - 32]); | |
1591 | case 40 ... 63: | |
1592 | return offsetof(CPUAlphaState, scratch[pr - 40]); | |
1593 | } | |
1594 | return 0; | |
1595 | } | |
1596 | ||
1597 | static void gen_mfpr(int ra, int regno) | |
1598 | { | |
1599 | int data = cpu_pr_data(regno); | |
1600 | ||
1601 | /* In our emulated PALcode, these processor registers have no | |
1602 | side effects from reading. */ | |
1603 | if (ra == 31) { | |
1604 | return; | |
1605 | } | |
1606 | ||
1607 | /* The basic registers are data only, and unknown registers | |
1608 | are read-zero, write-ignore. */ | |
1609 | if (data == 0) { | |
1610 | tcg_gen_movi_i64(cpu_ir[ra], 0); | |
1611 | } else if (data & PR_BYTE) { | |
1612 | tcg_gen_ld8u_i64(cpu_ir[ra], cpu_env, data & ~PR_BYTE); | |
1613 | } else if (data & PR_LONG) { | |
1614 | tcg_gen_ld32s_i64(cpu_ir[ra], cpu_env, data & ~PR_LONG); | |
1615 | } else { | |
1616 | tcg_gen_ld_i64(cpu_ir[ra], cpu_env, data); | |
1617 | } | |
1618 | } | |
1619 | ||
1620 | static void gen_mtpr(int rb, int regno) | |
1621 | { | |
1622 | TCGv tmp; | |
1623 | ||
1624 | if (rb == 31) { | |
1625 | tmp = tcg_const_i64(0); | |
1626 | } else { | |
1627 | tmp = cpu_ir[rb]; | |
1628 | } | |
1629 | ||
1630 | /* These two register numbers perform a TLB cache flush. Thankfully we | |
1631 | can only do this inside PALmode, which means that the current basic | |
1632 | block cannot be affected by the change in mappings. */ | |
1633 | if (regno == 255) { | |
1634 | /* TBIA */ | |
1635 | gen_helper_tbia(); | |
1636 | } else if (regno == 254) { | |
1637 | /* TBIS */ | |
1638 | gen_helper_tbis(tmp); | |
1639 | } else { | |
1640 | /* The basic registers are data only, and unknown registers | |
1641 | are read-zero, write-ignore. */ | |
1642 | int data = cpu_pr_data(regno); | |
1643 | if (data != 0) { | |
1644 | if (data & PR_BYTE) { | |
1645 | tcg_gen_st8_i64(tmp, cpu_env, data & ~PR_BYTE); | |
1646 | } else if (data & PR_LONG) { | |
1647 | tcg_gen_st32_i64(tmp, cpu_env, data & ~PR_LONG); | |
1648 | } else { | |
1649 | tcg_gen_st_i64(tmp, cpu_env, data); | |
1650 | } | |
1651 | } | |
1652 | } | |
1653 | ||
1654 | if (rb == 31) { | |
1655 | tcg_temp_free(tmp); | |
1656 | } | |
1657 | } | |
1658 | #endif /* !USER_ONLY*/ | |
1659 | ||
1660 | static ExitStatus translate_one(DisasContext *ctx, uint32_t insn) | |
1661 | { | |
1662 | uint32_t palcode; | |
1663 | int32_t disp21, disp16; | |
1664 | #ifndef CONFIG_USER_ONLY | |
1665 | int32_t disp12; | |
1666 | #endif | |
1667 | uint16_t fn11; | |
1668 | uint8_t opc, ra, rb, rc, fpfn, fn7, islit, real_islit; | |
1669 | uint8_t lit; | |
1670 | ExitStatus ret; | |
1671 | ||
1672 | /* Decode all instruction fields */ | |
1673 | opc = insn >> 26; | |
1674 | ra = (insn >> 21) & 0x1F; | |
1675 | rb = (insn >> 16) & 0x1F; | |
1676 | rc = insn & 0x1F; | |
1677 | real_islit = islit = (insn >> 12) & 1; | |
1678 | if (rb == 31 && !islit) { | |
1679 | islit = 1; | |
1680 | lit = 0; | |
1681 | } else | |
1682 | lit = (insn >> 13) & 0xFF; | |
1683 | palcode = insn & 0x03FFFFFF; | |
1684 | disp21 = ((int32_t)((insn & 0x001FFFFF) << 11)) >> 11; | |
1685 | disp16 = (int16_t)(insn & 0x0000FFFF); | |
1686 | #ifndef CONFIG_USER_ONLY | |
1687 | disp12 = (int32_t)((insn & 0x00000FFF) << 20) >> 20; | |
1688 | #endif | |
1689 | fn11 = (insn >> 5) & 0x000007FF; | |
1690 | fpfn = fn11 & 0x3F; | |
1691 | fn7 = (insn >> 5) & 0x0000007F; | |
1692 | LOG_DISAS("opc %02x ra %2d rb %2d rc %2d disp16 %6d\n", | |
1693 | opc, ra, rb, rc, disp16); | |
1694 | ||
1695 | ret = NO_EXIT; | |
1696 | switch (opc) { | |
1697 | case 0x00: | |
1698 | /* CALL_PAL */ | |
1699 | ret = gen_call_pal(ctx, palcode); | |
1700 | break; | |
1701 | case 0x01: | |
1702 | /* OPC01 */ | |
1703 | goto invalid_opc; | |
1704 | case 0x02: | |
1705 | /* OPC02 */ | |
1706 | goto invalid_opc; | |
1707 | case 0x03: | |
1708 | /* OPC03 */ | |
1709 | goto invalid_opc; | |
1710 | case 0x04: | |
1711 | /* OPC04 */ | |
1712 | goto invalid_opc; | |
1713 | case 0x05: | |
1714 | /* OPC05 */ | |
1715 | goto invalid_opc; | |
1716 | case 0x06: | |
1717 | /* OPC06 */ | |
1718 | goto invalid_opc; | |
1719 | case 0x07: | |
1720 | /* OPC07 */ | |
1721 | goto invalid_opc; | |
1722 | case 0x08: | |
1723 | /* LDA */ | |
1724 | if (likely(ra != 31)) { | |
1725 | if (rb != 31) | |
1726 | tcg_gen_addi_i64(cpu_ir[ra], cpu_ir[rb], disp16); | |
1727 | else | |
1728 | tcg_gen_movi_i64(cpu_ir[ra], disp16); | |
1729 | } | |
1730 | break; | |
1731 | case 0x09: | |
1732 | /* LDAH */ | |
1733 | if (likely(ra != 31)) { | |
1734 | if (rb != 31) | |
1735 | tcg_gen_addi_i64(cpu_ir[ra], cpu_ir[rb], disp16 << 16); | |
1736 | else | |
1737 | tcg_gen_movi_i64(cpu_ir[ra], disp16 << 16); | |
1738 | } | |
1739 | break; | |
1740 | case 0x0A: | |
1741 | /* LDBU */ | |
1742 | if (ctx->tb->flags & TB_FLAGS_AMASK_BWX) { | |
1743 | gen_load_mem(ctx, &tcg_gen_qemu_ld8u, ra, rb, disp16, 0, 0); | |
1744 | break; | |
1745 | } | |
1746 | goto invalid_opc; | |
1747 | case 0x0B: | |
1748 | /* LDQ_U */ | |
1749 | gen_load_mem(ctx, &tcg_gen_qemu_ld64, ra, rb, disp16, 0, 1); | |
1750 | break; | |
1751 | case 0x0C: | |
1752 | /* LDWU */ | |
1753 | if (ctx->tb->flags & TB_FLAGS_AMASK_BWX) { | |
1754 | gen_load_mem(ctx, &tcg_gen_qemu_ld16u, ra, rb, disp16, 0, 0); | |
1755 | break; | |
1756 | } | |
1757 | goto invalid_opc; | |
1758 | case 0x0D: | |
1759 | /* STW */ | |
1760 | gen_store_mem(ctx, &tcg_gen_qemu_st16, ra, rb, disp16, 0, 0); | |
1761 | break; | |
1762 | case 0x0E: | |
1763 | /* STB */ | |
1764 | gen_store_mem(ctx, &tcg_gen_qemu_st8, ra, rb, disp16, 0, 0); | |
1765 | break; | |
1766 | case 0x0F: | |
1767 | /* STQ_U */ | |
1768 | gen_store_mem(ctx, &tcg_gen_qemu_st64, ra, rb, disp16, 0, 1); | |
1769 | break; | |
1770 | case 0x10: | |
1771 | switch (fn7) { | |
1772 | case 0x00: | |
1773 | /* ADDL */ | |
1774 | if (likely(rc != 31)) { | |
1775 | if (ra != 31) { | |
1776 | if (islit) { | |
1777 | tcg_gen_addi_i64(cpu_ir[rc], cpu_ir[ra], lit); | |
1778 | tcg_gen_ext32s_i64(cpu_ir[rc], cpu_ir[rc]); | |
1779 | } else { | |
1780 | tcg_gen_add_i64(cpu_ir[rc], cpu_ir[ra], cpu_ir[rb]); | |
1781 | tcg_gen_ext32s_i64(cpu_ir[rc], cpu_ir[rc]); | |
1782 | } | |
1783 | } else { | |
1784 | if (islit) | |
1785 | tcg_gen_movi_i64(cpu_ir[rc], lit); | |
1786 | else | |
1787 | tcg_gen_ext32s_i64(cpu_ir[rc], cpu_ir[rb]); | |
1788 | } | |
1789 | } | |
1790 | break; | |
1791 | case 0x02: | |
1792 | /* S4ADDL */ | |
1793 | if (likely(rc != 31)) { | |
1794 | if (ra != 31) { | |
1795 | TCGv tmp = tcg_temp_new(); | |
1796 | tcg_gen_shli_i64(tmp, cpu_ir[ra], 2); | |
1797 | if (islit) | |
1798 | tcg_gen_addi_i64(tmp, tmp, lit); | |
1799 | else | |
1800 | tcg_gen_add_i64(tmp, tmp, cpu_ir[rb]); | |
1801 | tcg_gen_ext32s_i64(cpu_ir[rc], tmp); | |
1802 | tcg_temp_free(tmp); | |
1803 | } else { | |
1804 | if (islit) | |
1805 | tcg_gen_movi_i64(cpu_ir[rc], lit); | |
1806 | else | |
1807 | tcg_gen_ext32s_i64(cpu_ir[rc], cpu_ir[rb]); | |
1808 | } | |
1809 | } | |
1810 | break; | |
1811 | case 0x09: | |
1812 | /* SUBL */ | |
1813 | if (likely(rc != 31)) { | |
1814 | if (ra != 31) { | |
1815 | if (islit) | |
1816 | tcg_gen_subi_i64(cpu_ir[rc], cpu_ir[ra], lit); | |
1817 | else | |
1818 | tcg_gen_sub_i64(cpu_ir[rc], cpu_ir[ra], cpu_ir[rb]); | |
1819 | tcg_gen_ext32s_i64(cpu_ir[rc], cpu_ir[rc]); | |
1820 | } else { | |
1821 | if (islit) | |
1822 | tcg_gen_movi_i64(cpu_ir[rc], -lit); | |
1823 | else { | |
1824 | tcg_gen_neg_i64(cpu_ir[rc], cpu_ir[rb]); | |
1825 | tcg_gen_ext32s_i64(cpu_ir[rc], cpu_ir[rc]); | |
1826 | } | |
1827 | } | |
1828 | break; | |
1829 | case 0x0B: | |
1830 | /* S4SUBL */ | |
1831 | if (likely(rc != 31)) { | |
1832 | if (ra != 31) { | |
1833 | TCGv tmp = tcg_temp_new(); | |
1834 | tcg_gen_shli_i64(tmp, cpu_ir[ra], 2); | |
1835 | if (islit) | |
1836 | tcg_gen_subi_i64(tmp, tmp, lit); | |
1837 | else | |
1838 | tcg_gen_sub_i64(tmp, tmp, cpu_ir[rb]); | |
1839 | tcg_gen_ext32s_i64(cpu_ir[rc], tmp); | |
1840 | tcg_temp_free(tmp); | |
1841 | } else { | |
1842 | if (islit) | |
1843 | tcg_gen_movi_i64(cpu_ir[rc], -lit); | |
1844 | else { | |
1845 | tcg_gen_neg_i64(cpu_ir[rc], cpu_ir[rb]); | |
1846 | tcg_gen_ext32s_i64(cpu_ir[rc], cpu_ir[rc]); | |
1847 | } | |
1848 | } | |
1849 | } | |
1850 | break; | |
1851 | case 0x0F: | |
1852 | /* CMPBGE */ | |
1853 | gen_cmpbge(ra, rb, rc, islit, lit); | |
1854 | break; | |
1855 | case 0x12: | |
1856 | /* S8ADDL */ | |
1857 | if (likely(rc != 31)) { | |
1858 | if (ra != 31) { | |
1859 | TCGv tmp = tcg_temp_new(); | |
1860 | tcg_gen_shli_i64(tmp, cpu_ir[ra], 3); | |
1861 | if (islit) | |
1862 | tcg_gen_addi_i64(tmp, tmp, lit); | |
1863 | else | |
1864 | tcg_gen_add_i64(tmp, tmp, cpu_ir[rb]); | |
1865 | tcg_gen_ext32s_i64(cpu_ir[rc], tmp); | |
1866 | tcg_temp_free(tmp); | |
1867 | } else { | |
1868 | if (islit) | |
1869 | tcg_gen_movi_i64(cpu_ir[rc], lit); | |
1870 | else | |
1871 | tcg_gen_ext32s_i64(cpu_ir[rc], cpu_ir[rb]); | |
1872 | } | |
1873 | } | |
1874 | break; | |
1875 | case 0x1B: | |
1876 | /* S8SUBL */ | |
1877 | if (likely(rc != 31)) { | |
1878 | if (ra != 31) { | |
1879 | TCGv tmp = tcg_temp_new(); | |
1880 | tcg_gen_shli_i64(tmp, cpu_ir[ra], 3); | |
1881 | if (islit) | |
1882 | tcg_gen_subi_i64(tmp, tmp, lit); | |
1883 | else | |
1884 | tcg_gen_sub_i64(tmp, tmp, cpu_ir[rb]); | |
1885 | tcg_gen_ext32s_i64(cpu_ir[rc], tmp); | |
1886 | tcg_temp_free(tmp); | |
1887 | } else { | |
1888 | if (islit) | |
1889 | tcg_gen_movi_i64(cpu_ir[rc], -lit); | |
1890 | else | |
1891 | tcg_gen_neg_i64(cpu_ir[rc], cpu_ir[rb]); | |
1892 | tcg_gen_ext32s_i64(cpu_ir[rc], cpu_ir[rc]); | |
1893 | } | |
1894 | } | |
1895 | } | |
1896 | break; | |
1897 | case 0x1D: | |
1898 | /* CMPULT */ | |
1899 | gen_cmp(TCG_COND_LTU, ra, rb, rc, islit, lit); | |
1900 | break; | |
1901 | case 0x20: | |
1902 | /* ADDQ */ | |
1903 | if (likely(rc != 31)) { | |
1904 | if (ra != 31) { | |
1905 | if (islit) | |
1906 | tcg_gen_addi_i64(cpu_ir[rc], cpu_ir[ra], lit); | |
1907 | else | |
1908 | tcg_gen_add_i64(cpu_ir[rc], cpu_ir[ra], cpu_ir[rb]); | |
1909 | } else { | |
1910 | if (islit) | |
1911 | tcg_gen_movi_i64(cpu_ir[rc], lit); | |
1912 | else | |
1913 | tcg_gen_mov_i64(cpu_ir[rc], cpu_ir[rb]); | |
1914 | } | |
1915 | } | |
1916 | break; | |
1917 | case 0x22: | |
1918 | /* S4ADDQ */ | |
1919 | if (likely(rc != 31)) { | |
1920 | if (ra != 31) { | |
1921 | TCGv tmp = tcg_temp_new(); | |
1922 | tcg_gen_shli_i64(tmp, cpu_ir[ra], 2); | |
1923 | if (islit) | |
1924 | tcg_gen_addi_i64(cpu_ir[rc], tmp, lit); | |
1925 | else | |
1926 | tcg_gen_add_i64(cpu_ir[rc], tmp, cpu_ir[rb]); | |
1927 | tcg_temp_free(tmp); | |
1928 | } else { | |
1929 | if (islit) | |
1930 | tcg_gen_movi_i64(cpu_ir[rc], lit); | |
1931 | else | |
1932 | tcg_gen_mov_i64(cpu_ir[rc], cpu_ir[rb]); | |
1933 | } | |
1934 | } | |
1935 | break; | |
1936 | case 0x29: | |
1937 | /* SUBQ */ | |
1938 | if (likely(rc != 31)) { | |
1939 | if (ra != 31) { | |
1940 | if (islit) | |
1941 | tcg_gen_subi_i64(cpu_ir[rc], cpu_ir[ra], lit); | |
1942 | else | |
1943 | tcg_gen_sub_i64(cpu_ir[rc], cpu_ir[ra], cpu_ir[rb]); | |
1944 | } else { | |
1945 | if (islit) | |
1946 | tcg_gen_movi_i64(cpu_ir[rc], -lit); | |
1947 | else | |
1948 | tcg_gen_neg_i64(cpu_ir[rc], cpu_ir[rb]); | |
1949 | } | |
1950 | } | |
1951 | break; | |
1952 | case 0x2B: | |
1953 | /* S4SUBQ */ | |
1954 | if (likely(rc != 31)) { | |
1955 | if (ra != 31) { | |
1956 | TCGv tmp = tcg_temp_new(); | |
1957 | tcg_gen_shli_i64(tmp, cpu_ir[ra], 2); | |
1958 | if (islit) | |
1959 | tcg_gen_subi_i64(cpu_ir[rc], tmp, lit); | |
1960 | else | |
1961 | tcg_gen_sub_i64(cpu_ir[rc], tmp, cpu_ir[rb]); | |
1962 | tcg_temp_free(tmp); | |
1963 | } else { | |
1964 | if (islit) | |
1965 | tcg_gen_movi_i64(cpu_ir[rc], -lit); | |
1966 | else | |
1967 | tcg_gen_neg_i64(cpu_ir[rc], cpu_ir[rb]); | |
1968 | } | |
1969 | } | |
1970 | break; | |
1971 | case 0x2D: | |
1972 | /* CMPEQ */ | |
1973 | gen_cmp(TCG_COND_EQ, ra, rb, rc, islit, lit); | |
1974 | break; | |
1975 | case 0x32: | |
1976 | /* S8ADDQ */ | |
1977 | if (likely(rc != 31)) { | |
1978 | if (ra != 31) { | |
1979 | TCGv tmp = tcg_temp_new(); | |
1980 | tcg_gen_shli_i64(tmp, cpu_ir[ra], 3); | |
1981 | if (islit) | |
1982 | tcg_gen_addi_i64(cpu_ir[rc], tmp, lit); | |
1983 | else | |
1984 | tcg_gen_add_i64(cpu_ir[rc], tmp, cpu_ir[rb]); | |
1985 | tcg_temp_free(tmp); | |
1986 | } else { | |
1987 | if (islit) | |
1988 | tcg_gen_movi_i64(cpu_ir[rc], lit); | |
1989 | else | |
1990 | tcg_gen_mov_i64(cpu_ir[rc], cpu_ir[rb]); | |
1991 | } | |
1992 | } | |
1993 | break; | |
1994 | case 0x3B: | |
1995 | /* S8SUBQ */ | |
1996 | if (likely(rc != 31)) { | |
1997 | if (ra != 31) { | |
1998 | TCGv tmp = tcg_temp_new(); | |
1999 | tcg_gen_shli_i64(tmp, cpu_ir[ra], 3); | |
2000 | if (islit) | |
2001 | tcg_gen_subi_i64(cpu_ir[rc], tmp, lit); | |
2002 | else | |
2003 | tcg_gen_sub_i64(cpu_ir[rc], tmp, cpu_ir[rb]); | |
2004 | tcg_temp_free(tmp); | |
2005 | } else { | |
2006 | if (islit) | |
2007 | tcg_gen_movi_i64(cpu_ir[rc], -lit); | |
2008 | else | |
2009 | tcg_gen_neg_i64(cpu_ir[rc], cpu_ir[rb]); | |
2010 | } | |
2011 | } | |
2012 | break; | |
2013 | case 0x3D: | |
2014 | /* CMPULE */ | |
2015 | gen_cmp(TCG_COND_LEU, ra, rb, rc, islit, lit); | |
2016 | break; | |
2017 | case 0x40: | |
2018 | /* ADDL/V */ | |
2019 | gen_addlv(ra, rb, rc, islit, lit); | |
2020 | break; | |
2021 | case 0x49: | |
2022 | /* SUBL/V */ | |
2023 | gen_sublv(ra, rb, rc, islit, lit); | |
2024 | break; | |
2025 | case 0x4D: | |
2026 | /* CMPLT */ | |
2027 | gen_cmp(TCG_COND_LT, ra, rb, rc, islit, lit); | |
2028 | break; | |
2029 | case 0x60: | |
2030 | /* ADDQ/V */ | |
2031 | gen_addqv(ra, rb, rc, islit, lit); | |
2032 | break; | |
2033 | case 0x69: | |
2034 | /* SUBQ/V */ | |
2035 | gen_subqv(ra, rb, rc, islit, lit); | |
2036 | break; | |
2037 | case 0x6D: | |
2038 | /* CMPLE */ | |
2039 | gen_cmp(TCG_COND_LE, ra, rb, rc, islit, lit); | |
2040 | break; | |
2041 | default: | |
2042 | goto invalid_opc; | |
2043 | } | |
2044 | break; | |
2045 | case 0x11: | |
2046 | switch (fn7) { | |
2047 | case 0x00: | |
2048 | /* AND */ | |
2049 | if (likely(rc != 31)) { | |
2050 | if (ra == 31) | |
2051 | tcg_gen_movi_i64(cpu_ir[rc], 0); | |
2052 | else if (islit) | |
2053 | tcg_gen_andi_i64(cpu_ir[rc], cpu_ir[ra], lit); | |
2054 | else | |
2055 | tcg_gen_and_i64(cpu_ir[rc], cpu_ir[ra], cpu_ir[rb]); | |
2056 | } | |
2057 | break; | |
2058 | case 0x08: | |
2059 | /* BIC */ | |
2060 | if (likely(rc != 31)) { | |
2061 | if (ra != 31) { | |
2062 | if (islit) | |
2063 | tcg_gen_andi_i64(cpu_ir[rc], cpu_ir[ra], ~lit); | |
2064 | else | |
2065 | tcg_gen_andc_i64(cpu_ir[rc], cpu_ir[ra], cpu_ir[rb]); | |
2066 | } else | |
2067 | tcg_gen_movi_i64(cpu_ir[rc], 0); | |
2068 | } | |
2069 | break; | |
2070 | case 0x14: | |
2071 | /* CMOVLBS */ | |
2072 | gen_cmov(TCG_COND_NE, ra, rb, rc, islit, lit, 1); | |
2073 | break; | |
2074 | case 0x16: | |
2075 | /* CMOVLBC */ | |
2076 | gen_cmov(TCG_COND_EQ, ra, rb, rc, islit, lit, 1); | |
2077 | break; | |
2078 | case 0x20: | |
2079 | /* BIS */ | |
2080 | if (likely(rc != 31)) { | |
2081 | if (ra != 31) { | |
2082 | if (islit) | |
2083 | tcg_gen_ori_i64(cpu_ir[rc], cpu_ir[ra], lit); | |
2084 | else | |
2085 | tcg_gen_or_i64(cpu_ir[rc], cpu_ir[ra], cpu_ir[rb]); | |
2086 | } else { | |
2087 | if (islit) | |
2088 | tcg_gen_movi_i64(cpu_ir[rc], lit); | |
2089 | else | |
2090 | tcg_gen_mov_i64(cpu_ir[rc], cpu_ir[rb]); | |
2091 | } | |
2092 | } | |
2093 | break; | |
2094 | case 0x24: | |
2095 | /* CMOVEQ */ | |
2096 | gen_cmov(TCG_COND_EQ, ra, rb, rc, islit, lit, 0); | |
2097 | break; | |
2098 | case 0x26: | |
2099 | /* CMOVNE */ | |
2100 | gen_cmov(TCG_COND_NE, ra, rb, rc, islit, lit, 0); | |
2101 | break; | |
2102 | case 0x28: | |
2103 | /* ORNOT */ | |
2104 | if (likely(rc != 31)) { | |
2105 | if (ra != 31) { | |
2106 | if (islit) | |
2107 | tcg_gen_ori_i64(cpu_ir[rc], cpu_ir[ra], ~lit); | |
2108 | else | |
2109 | tcg_gen_orc_i64(cpu_ir[rc], cpu_ir[ra], cpu_ir[rb]); | |
2110 | } else { | |
2111 | if (islit) | |
2112 | tcg_gen_movi_i64(cpu_ir[rc], ~lit); | |
2113 | else | |
2114 | tcg_gen_not_i64(cpu_ir[rc], cpu_ir[rb]); | |
2115 | } | |
2116 | } | |
2117 | break; | |
2118 | case 0x40: | |
2119 | /* XOR */ | |
2120 | if (likely(rc != 31)) { | |
2121 | if (ra != 31) { | |
2122 | if (islit) | |
2123 | tcg_gen_xori_i64(cpu_ir[rc], cpu_ir[ra], lit); | |
2124 | else | |
2125 | tcg_gen_xor_i64(cpu_ir[rc], cpu_ir[ra], cpu_ir[rb]); | |
2126 | } else { | |
2127 | if (islit) | |
2128 | tcg_gen_movi_i64(cpu_ir[rc], lit); | |
2129 | else | |
2130 | tcg_gen_mov_i64(cpu_ir[rc], cpu_ir[rb]); | |
2131 | } | |
2132 | } | |
2133 | break; | |
2134 | case 0x44: | |
2135 | /* CMOVLT */ | |
2136 | gen_cmov(TCG_COND_LT, ra, rb, rc, islit, lit, 0); | |
2137 | break; | |
2138 | case 0x46: | |
2139 | /* CMOVGE */ | |
2140 | gen_cmov(TCG_COND_GE, ra, rb, rc, islit, lit, 0); | |
2141 | break; | |
2142 | case 0x48: | |
2143 | /* EQV */ | |
2144 | if (likely(rc != 31)) { | |
2145 | if (ra != 31) { | |
2146 | if (islit) | |
2147 | tcg_gen_xori_i64(cpu_ir[rc], cpu_ir[ra], ~lit); | |
2148 | else | |
2149 | tcg_gen_eqv_i64(cpu_ir[rc], cpu_ir[ra], cpu_ir[rb]); | |
2150 | } else { | |
2151 | if (islit) | |
2152 | tcg_gen_movi_i64(cpu_ir[rc], ~lit); | |
2153 | else | |
2154 | tcg_gen_not_i64(cpu_ir[rc], cpu_ir[rb]); | |
2155 | } | |
2156 | } | |
2157 | break; | |
2158 | case 0x61: | |
2159 | /* AMASK */ | |
2160 | if (likely(rc != 31)) { | |
2161 | uint64_t amask = ctx->tb->flags >> TB_FLAGS_AMASK_SHIFT; | |
2162 | ||
2163 | if (islit) { | |
2164 | tcg_gen_movi_i64(cpu_ir[rc], lit & ~amask); | |
2165 | } else { | |
2166 | tcg_gen_andi_i64(cpu_ir[rc], cpu_ir[rb], ~amask); | |
2167 | } | |
2168 | } | |
2169 | break; | |
2170 | case 0x64: | |
2171 | /* CMOVLE */ | |
2172 | gen_cmov(TCG_COND_LE, ra, rb, rc, islit, lit, 0); | |
2173 | break; | |
2174 | case 0x66: | |
2175 | /* CMOVGT */ | |
2176 | gen_cmov(TCG_COND_GT, ra, rb, rc, islit, lit, 0); | |
2177 | break; | |
2178 | case 0x6C: | |
2179 | /* IMPLVER */ | |
2180 | if (rc != 31) | |
2181 | tcg_gen_movi_i64(cpu_ir[rc], ctx->env->implver); | |
2182 | break; | |
2183 | default: | |
2184 | goto invalid_opc; | |
2185 | } | |
2186 | break; | |
2187 | case 0x12: | |
2188 | switch (fn7) { | |
2189 | case 0x02: | |
2190 | /* MSKBL */ | |
2191 | gen_msk_l(ra, rb, rc, islit, lit, 0x01); | |
2192 | break; | |
2193 | case 0x06: | |
2194 | /* EXTBL */ | |
2195 | gen_ext_l(ra, rb, rc, islit, lit, 0x01); | |
2196 | break; | |
2197 | case 0x0B: | |
2198 | /* INSBL */ | |
2199 | gen_ins_l(ra, rb, rc, islit, lit, 0x01); | |
2200 | break; | |
2201 | case 0x12: | |
2202 | /* MSKWL */ | |
2203 | gen_msk_l(ra, rb, rc, islit, lit, 0x03); | |
2204 | break; | |
2205 | case 0x16: | |
2206 | /* EXTWL */ | |
2207 | gen_ext_l(ra, rb, rc, islit, lit, 0x03); | |
2208 | break; | |
2209 | case 0x1B: | |
2210 | /* INSWL */ | |
2211 | gen_ins_l(ra, rb, rc, islit, lit, 0x03); | |
2212 | break; | |
2213 | case 0x22: | |
2214 | /* MSKLL */ | |
2215 | gen_msk_l(ra, rb, rc, islit, lit, 0x0f); | |
2216 | break; | |
2217 | case 0x26: | |
2218 | /* EXTLL */ | |
2219 | gen_ext_l(ra, rb, rc, islit, lit, 0x0f); | |
2220 | break; | |
2221 | case 0x2B: | |
2222 | /* INSLL */ | |
2223 | gen_ins_l(ra, rb, rc, islit, lit, 0x0f); | |
2224 | break; | |
2225 | case 0x30: | |
2226 | /* ZAP */ | |
2227 | gen_zap(ra, rb, rc, islit, lit); | |
2228 | break; | |
2229 | case 0x31: | |
2230 | /* ZAPNOT */ | |
2231 | gen_zapnot(ra, rb, rc, islit, lit); | |
2232 | break; | |
2233 | case 0x32: | |
2234 | /* MSKQL */ | |
2235 | gen_msk_l(ra, rb, rc, islit, lit, 0xff); | |
2236 | break; | |
2237 | case 0x34: | |
2238 | /* SRL */ | |
2239 | if (likely(rc != 31)) { | |
2240 | if (ra != 31) { | |
2241 | if (islit) | |
2242 | tcg_gen_shri_i64(cpu_ir[rc], cpu_ir[ra], lit & 0x3f); | |
2243 | else { | |
2244 | TCGv shift = tcg_temp_new(); | |
2245 | tcg_gen_andi_i64(shift, cpu_ir[rb], 0x3f); | |
2246 | tcg_gen_shr_i64(cpu_ir[rc], cpu_ir[ra], shift); | |
2247 | tcg_temp_free(shift); | |
2248 | } | |
2249 | } else | |
2250 | tcg_gen_movi_i64(cpu_ir[rc], 0); | |
2251 | } | |
2252 | break; | |
2253 | case 0x36: | |
2254 | /* EXTQL */ | |
2255 | gen_ext_l(ra, rb, rc, islit, lit, 0xff); | |
2256 | break; | |
2257 | case 0x39: | |
2258 | /* SLL */ | |
2259 | if (likely(rc != 31)) { | |
2260 | if (ra != 31) { | |
2261 | if (islit) | |
2262 | tcg_gen_shli_i64(cpu_ir[rc], cpu_ir[ra], lit & 0x3f); | |
2263 | else { | |
2264 | TCGv shift = tcg_temp_new(); | |
2265 | tcg_gen_andi_i64(shift, cpu_ir[rb], 0x3f); | |
2266 | tcg_gen_shl_i64(cpu_ir[rc], cpu_ir[ra], shift); | |
2267 | tcg_temp_free(shift); | |
2268 | } | |
2269 | } else | |
2270 | tcg_gen_movi_i64(cpu_ir[rc], 0); | |
2271 | } | |
2272 | break; | |
2273 | case 0x3B: | |
2274 | /* INSQL */ | |
2275 | gen_ins_l(ra, rb, rc, islit, lit, 0xff); | |
2276 | break; | |
2277 | case 0x3C: | |
2278 | /* SRA */ | |
2279 | if (likely(rc != 31)) { | |
2280 | if (ra != 31) { | |
2281 | if (islit) | |
2282 | tcg_gen_sari_i64(cpu_ir[rc], cpu_ir[ra], lit & 0x3f); | |
2283 | else { | |
2284 | TCGv shift = tcg_temp_new(); | |
2285 | tcg_gen_andi_i64(shift, cpu_ir[rb], 0x3f); | |
2286 | tcg_gen_sar_i64(cpu_ir[rc], cpu_ir[ra], shift); | |
2287 | tcg_temp_free(shift); | |
2288 | } | |
2289 | } else | |
2290 | tcg_gen_movi_i64(cpu_ir[rc], 0); | |
2291 | } | |
2292 | break; | |
2293 | case 0x52: | |
2294 | /* MSKWH */ | |
2295 | gen_msk_h(ra, rb, rc, islit, lit, 0x03); | |
2296 | break; | |
2297 | case 0x57: | |
2298 | /* INSWH */ | |
2299 | gen_ins_h(ra, rb, rc, islit, lit, 0x03); | |
2300 | break; | |
2301 | case 0x5A: | |
2302 | /* EXTWH */ | |
2303 | gen_ext_h(ra, rb, rc, islit, lit, 0x03); | |
2304 | break; | |
2305 | case 0x62: | |
2306 | /* MSKLH */ | |
2307 | gen_msk_h(ra, rb, rc, islit, lit, 0x0f); | |
2308 | break; | |
2309 | case 0x67: | |
2310 | /* INSLH */ | |
2311 | gen_ins_h(ra, rb, rc, islit, lit, 0x0f); | |
2312 | break; | |
2313 | case 0x6A: | |
2314 | /* EXTLH */ | |
2315 | gen_ext_h(ra, rb, rc, islit, lit, 0x0f); | |
2316 | break; | |
2317 | case 0x72: | |
2318 | /* MSKQH */ | |
2319 | gen_msk_h(ra, rb, rc, islit, lit, 0xff); | |
2320 | break; | |
2321 | case 0x77: | |
2322 | /* INSQH */ | |
2323 | gen_ins_h(ra, rb, rc, islit, lit, 0xff); | |
2324 | break; | |
2325 | case 0x7A: | |
2326 | /* EXTQH */ | |
2327 | gen_ext_h(ra, rb, rc, islit, lit, 0xff); | |
2328 | break; | |
2329 | default: | |
2330 | goto invalid_opc; | |
2331 | } | |
2332 | break; | |
2333 | case 0x13: | |
2334 | switch (fn7) { | |
2335 | case 0x00: | |
2336 | /* MULL */ | |
2337 | if (likely(rc != 31)) { | |
2338 | if (ra == 31) | |
2339 | tcg_gen_movi_i64(cpu_ir[rc], 0); | |
2340 | else { | |
2341 | if (islit) | |
2342 | tcg_gen_muli_i64(cpu_ir[rc], cpu_ir[ra], lit); | |
2343 | else | |
2344 | tcg_gen_mul_i64(cpu_ir[rc], cpu_ir[ra], cpu_ir[rb]); | |
2345 | tcg_gen_ext32s_i64(cpu_ir[rc], cpu_ir[rc]); | |
2346 | } | |
2347 | } | |
2348 | break; | |
2349 | case 0x20: | |
2350 | /* MULQ */ | |
2351 | if (likely(rc != 31)) { | |
2352 | if (ra == 31) | |
2353 | tcg_gen_movi_i64(cpu_ir[rc], 0); | |
2354 | else if (islit) | |
2355 | tcg_gen_muli_i64(cpu_ir[rc], cpu_ir[ra], lit); | |
2356 | else | |
2357 | tcg_gen_mul_i64(cpu_ir[rc], cpu_ir[ra], cpu_ir[rb]); | |
2358 | } | |
2359 | break; | |
2360 | case 0x30: | |
2361 | /* UMULH */ | |
2362 | gen_umulh(ra, rb, rc, islit, lit); | |
2363 | break; | |
2364 | case 0x40: | |
2365 | /* MULL/V */ | |
2366 | gen_mullv(ra, rb, rc, islit, lit); | |
2367 | break; | |
2368 | case 0x60: | |
2369 | /* MULQ/V */ | |
2370 | gen_mulqv(ra, rb, rc, islit, lit); | |
2371 | break; | |
2372 | default: | |
2373 | goto invalid_opc; | |
2374 | } | |
2375 | break; | |
2376 | case 0x14: | |
2377 | switch (fpfn) { /* fn11 & 0x3F */ | |
2378 | case 0x04: | |
2379 | /* ITOFS */ | |
2380 | if ((ctx->tb->flags & TB_FLAGS_AMASK_FIX) == 0) { | |
2381 | goto invalid_opc; | |
2382 | } | |
2383 | if (likely(rc != 31)) { | |
2384 | if (ra != 31) { | |
2385 | TCGv_i32 tmp = tcg_temp_new_i32(); | |
2386 | tcg_gen_trunc_i64_i32(tmp, cpu_ir[ra]); | |
2387 | gen_helper_memory_to_s(cpu_fir[rc], tmp); | |
2388 | tcg_temp_free_i32(tmp); | |
2389 | } else | |
2390 | tcg_gen_movi_i64(cpu_fir[rc], 0); | |
2391 | } | |
2392 | break; | |
2393 | case 0x0A: | |
2394 | /* SQRTF */ | |
2395 | if (ctx->tb->flags & TB_FLAGS_AMASK_FIX) { | |
2396 | gen_fsqrtf(rb, rc); | |
2397 | break; | |
2398 | } | |
2399 | goto invalid_opc; | |
2400 | case 0x0B: | |
2401 | /* SQRTS */ | |
2402 | if (ctx->tb->flags & TB_FLAGS_AMASK_FIX) { | |
2403 | gen_fsqrts(ctx, rb, rc, fn11); | |
2404 | break; | |
2405 | } | |
2406 | goto invalid_opc; | |
2407 | case 0x14: | |
2408 | /* ITOFF */ | |
2409 | if ((ctx->tb->flags & TB_FLAGS_AMASK_FIX) == 0) { | |
2410 | goto invalid_opc; | |
2411 | } | |
2412 | if (likely(rc != 31)) { | |
2413 | if (ra != 31) { | |
2414 | TCGv_i32 tmp = tcg_temp_new_i32(); | |
2415 | tcg_gen_trunc_i64_i32(tmp, cpu_ir[ra]); | |
2416 | gen_helper_memory_to_f(cpu_fir[rc], tmp); | |
2417 | tcg_temp_free_i32(tmp); | |
2418 | } else | |
2419 | tcg_gen_movi_i64(cpu_fir[rc], 0); | |
2420 | } | |
2421 | break; | |
2422 | case 0x24: | |
2423 | /* ITOFT */ | |
2424 | if ((ctx->tb->flags & TB_FLAGS_AMASK_FIX) == 0) { | |
2425 | goto invalid_opc; | |
2426 | } | |
2427 | if (likely(rc != 31)) { | |
2428 | if (ra != 31) | |
2429 | tcg_gen_mov_i64(cpu_fir[rc], cpu_ir[ra]); | |
2430 | else | |
2431 | tcg_gen_movi_i64(cpu_fir[rc], 0); | |
2432 | } | |
2433 | break; | |
2434 | case 0x2A: | |
2435 | /* SQRTG */ | |
2436 | if (ctx->tb->flags & TB_FLAGS_AMASK_FIX) { | |
2437 | gen_fsqrtg(rb, rc); | |
2438 | break; | |
2439 | } | |
2440 | goto invalid_opc; | |
2441 | case 0x02B: | |
2442 | /* SQRTT */ | |
2443 | if (ctx->tb->flags & TB_FLAGS_AMASK_FIX) { | |
2444 | gen_fsqrtt(ctx, rb, rc, fn11); | |
2445 | break; | |
2446 | } | |
2447 | goto invalid_opc; | |
2448 | default: | |
2449 | goto invalid_opc; | |
2450 | } | |
2451 | break; | |
2452 | case 0x15: | |
2453 | /* VAX floating point */ | |
2454 | /* XXX: rounding mode and trap are ignored (!) */ | |
2455 | switch (fpfn) { /* fn11 & 0x3F */ | |
2456 | case 0x00: | |
2457 | /* ADDF */ | |
2458 | gen_faddf(ra, rb, rc); | |
2459 | break; | |
2460 | case 0x01: | |
2461 | /* SUBF */ | |
2462 | gen_fsubf(ra, rb, rc); | |
2463 | break; | |
2464 | case 0x02: | |
2465 | /* MULF */ | |
2466 | gen_fmulf(ra, rb, rc); | |
2467 | break; | |
2468 | case 0x03: | |
2469 | /* DIVF */ | |
2470 | gen_fdivf(ra, rb, rc); | |
2471 | break; | |
2472 | case 0x1E: | |
2473 | /* CVTDG */ | |
2474 | #if 0 // TODO | |
2475 | gen_fcvtdg(rb, rc); | |
2476 | #else | |
2477 | goto invalid_opc; | |
2478 | #endif | |
2479 | break; | |
2480 | case 0x20: | |
2481 | /* ADDG */ | |
2482 | gen_faddg(ra, rb, rc); | |
2483 | break; | |
2484 | case 0x21: | |
2485 | /* SUBG */ | |
2486 | gen_fsubg(ra, rb, rc); | |
2487 | break; | |
2488 | case 0x22: | |
2489 | /* MULG */ | |
2490 | gen_fmulg(ra, rb, rc); | |
2491 | break; | |
2492 | case 0x23: | |
2493 | /* DIVG */ | |
2494 | gen_fdivg(ra, rb, rc); | |
2495 | break; | |
2496 | case 0x25: | |
2497 | /* CMPGEQ */ | |
2498 | gen_fcmpgeq(ra, rb, rc); | |
2499 | break; | |
2500 | case 0x26: | |
2501 | /* CMPGLT */ | |
2502 | gen_fcmpglt(ra, rb, rc); | |
2503 | break; | |
2504 | case 0x27: | |
2505 | /* CMPGLE */ | |
2506 | gen_fcmpgle(ra, rb, rc); | |
2507 | break; | |
2508 | case 0x2C: | |
2509 | /* CVTGF */ | |
2510 | gen_fcvtgf(rb, rc); | |
2511 | break; | |
2512 | case 0x2D: | |
2513 | /* CVTGD */ | |
2514 | #if 0 // TODO | |
2515 | gen_fcvtgd(rb, rc); | |
2516 | #else | |
2517 | goto invalid_opc; | |
2518 | #endif | |
2519 | break; | |
2520 | case 0x2F: | |
2521 | /* CVTGQ */ | |
2522 | gen_fcvtgq(rb, rc); | |
2523 | break; | |
2524 | case 0x3C: | |
2525 | /* CVTQF */ | |
2526 | gen_fcvtqf(rb, rc); | |
2527 | break; | |
2528 | case 0x3E: | |
2529 | /* CVTQG */ | |
2530 | gen_fcvtqg(rb, rc); | |
2531 | break; | |
2532 | default: | |
2533 | goto invalid_opc; | |
2534 | } | |
2535 | break; | |
2536 | case 0x16: | |
2537 | /* IEEE floating-point */ | |
2538 | switch (fpfn) { /* fn11 & 0x3F */ | |
2539 | case 0x00: | |
2540 | /* ADDS */ | |
2541 | gen_fadds(ctx, ra, rb, rc, fn11); | |
2542 | break; | |
2543 | case 0x01: | |
2544 | /* SUBS */ | |
2545 | gen_fsubs(ctx, ra, rb, rc, fn11); | |
2546 | break; | |
2547 | case 0x02: | |
2548 | /* MULS */ | |
2549 | gen_fmuls(ctx, ra, rb, rc, fn11); | |
2550 | break; | |
2551 | case 0x03: | |
2552 | /* DIVS */ | |
2553 | gen_fdivs(ctx, ra, rb, rc, fn11); | |
2554 | break; | |
2555 | case 0x20: | |
2556 | /* ADDT */ | |
2557 | gen_faddt(ctx, ra, rb, rc, fn11); | |
2558 | break; | |
2559 | case 0x21: | |
2560 | /* SUBT */ | |
2561 | gen_fsubt(ctx, ra, rb, rc, fn11); | |
2562 | break; | |
2563 | case 0x22: | |
2564 | /* MULT */ | |
2565 | gen_fmult(ctx, ra, rb, rc, fn11); | |
2566 | break; | |
2567 | case 0x23: | |
2568 | /* DIVT */ | |
2569 | gen_fdivt(ctx, ra, rb, rc, fn11); | |
2570 | break; | |
2571 | case 0x24: | |
2572 | /* CMPTUN */ | |
2573 | gen_fcmptun(ctx, ra, rb, rc, fn11); | |
2574 | break; | |
2575 | case 0x25: | |
2576 | /* CMPTEQ */ | |
2577 | gen_fcmpteq(ctx, ra, rb, rc, fn11); | |
2578 | break; | |
2579 | case 0x26: | |
2580 | /* CMPTLT */ | |
2581 | gen_fcmptlt(ctx, ra, rb, rc, fn11); | |
2582 | break; | |
2583 | case 0x27: | |
2584 | /* CMPTLE */ | |
2585 | gen_fcmptle(ctx, ra, rb, rc, fn11); | |
2586 | break; | |
2587 | case 0x2C: | |
2588 | if (fn11 == 0x2AC || fn11 == 0x6AC) { | |
2589 | /* CVTST */ | |
2590 | gen_fcvtst(ctx, rb, rc, fn11); | |
2591 | } else { | |
2592 | /* CVTTS */ | |
2593 | gen_fcvtts(ctx, rb, rc, fn11); | |
2594 | } | |
2595 | break; | |
2596 | case 0x2F: | |
2597 | /* CVTTQ */ | |
2598 | gen_fcvttq(ctx, rb, rc, fn11); | |
2599 | break; | |
2600 | case 0x3C: | |
2601 | /* CVTQS */ | |
2602 | gen_fcvtqs(ctx, rb, rc, fn11); | |
2603 | break; | |
2604 | case 0x3E: | |
2605 | /* CVTQT */ | |
2606 | gen_fcvtqt(ctx, rb, rc, fn11); | |
2607 | break; | |
2608 | default: | |
2609 | goto invalid_opc; | |
2610 | } | |
2611 | break; | |
2612 | case 0x17: | |
2613 | switch (fn11) { | |
2614 | case 0x010: | |
2615 | /* CVTLQ */ | |
2616 | gen_fcvtlq(rb, rc); | |
2617 | break; | |
2618 | case 0x020: | |
2619 | if (likely(rc != 31)) { | |
2620 | if (ra == rb) { | |
2621 | /* FMOV */ | |
2622 | if (ra == 31) | |
2623 | tcg_gen_movi_i64(cpu_fir[rc], 0); | |
2624 | else | |
2625 | tcg_gen_mov_i64(cpu_fir[rc], cpu_fir[ra]); | |
2626 | } else { | |
2627 | /* CPYS */ | |
2628 | gen_fcpys(ra, rb, rc); | |
2629 | } | |
2630 | } | |
2631 | break; | |
2632 | case 0x021: | |
2633 | /* CPYSN */ | |
2634 | gen_fcpysn(ra, rb, rc); | |
2635 | break; | |
2636 | case 0x022: | |
2637 | /* CPYSE */ | |
2638 | gen_fcpyse(ra, rb, rc); | |
2639 | break; | |
2640 | case 0x024: | |
2641 | /* MT_FPCR */ | |
2642 | if (likely(ra != 31)) | |
2643 | gen_helper_store_fpcr(cpu_fir[ra]); | |
2644 | else { | |
2645 | TCGv tmp = tcg_const_i64(0); | |
2646 | gen_helper_store_fpcr(tmp); | |
2647 | tcg_temp_free(tmp); | |
2648 | } | |
2649 | break; | |
2650 | case 0x025: | |
2651 | /* MF_FPCR */ | |
2652 | if (likely(ra != 31)) | |
2653 | gen_helper_load_fpcr(cpu_fir[ra]); | |
2654 | break; | |
2655 | case 0x02A: | |
2656 | /* FCMOVEQ */ | |
2657 | gen_fcmov(TCG_COND_EQ, ra, rb, rc); | |
2658 | break; | |
2659 | case 0x02B: | |
2660 | /* FCMOVNE */ | |
2661 | gen_fcmov(TCG_COND_NE, ra, rb, rc); | |
2662 | break; | |
2663 | case 0x02C: | |
2664 | /* FCMOVLT */ | |
2665 | gen_fcmov(TCG_COND_LT, ra, rb, rc); | |
2666 | break; | |
2667 | case 0x02D: | |
2668 | /* FCMOVGE */ | |
2669 | gen_fcmov(TCG_COND_GE, ra, rb, rc); | |
2670 | break; | |
2671 | case 0x02E: | |
2672 | /* FCMOVLE */ | |
2673 | gen_fcmov(TCG_COND_LE, ra, rb, rc); | |
2674 | break; | |
2675 | case 0x02F: | |
2676 | /* FCMOVGT */ | |
2677 | gen_fcmov(TCG_COND_GT, ra, rb, rc); | |
2678 | break; | |
2679 | case 0x030: | |
2680 | /* CVTQL */ | |
2681 | gen_fcvtql(rb, rc); | |
2682 | break; | |
2683 | case 0x130: | |
2684 | /* CVTQL/V */ | |
2685 | case 0x530: | |
2686 | /* CVTQL/SV */ | |
2687 | /* ??? I'm pretty sure there's nothing that /sv needs to do that | |
2688 | /v doesn't do. The only thing I can think is that /sv is a | |
2689 | valid instruction merely for completeness in the ISA. */ | |
2690 | gen_fcvtql_v(ctx, rb, rc); | |
2691 | break; | |
2692 | default: | |
2693 | goto invalid_opc; | |
2694 | } | |
2695 | break; | |
2696 | case 0x18: | |
2697 | switch ((uint16_t)disp16) { | |
2698 | case 0x0000: | |
2699 | /* TRAPB */ | |
2700 | /* No-op. */ | |
2701 | break; | |
2702 | case 0x0400: | |
2703 | /* EXCB */ | |
2704 | /* No-op. */ | |
2705 | break; | |
2706 | case 0x4000: | |
2707 | /* MB */ | |
2708 | /* No-op */ | |
2709 | break; | |
2710 | case 0x4400: | |
2711 | /* WMB */ | |
2712 | /* No-op */ | |
2713 | break; | |
2714 | case 0x8000: | |
2715 | /* FETCH */ | |
2716 | /* No-op */ | |
2717 | break; | |
2718 | case 0xA000: | |
2719 | /* FETCH_M */ | |
2720 | /* No-op */ | |
2721 | break; | |
2722 | case 0xC000: | |
2723 | /* RPCC */ | |
2724 | if (ra != 31) | |
2725 | gen_helper_load_pcc(cpu_ir[ra]); | |
2726 | break; | |
2727 | case 0xE000: | |
2728 | /* RC */ | |
2729 | gen_rx(ra, 0); | |
2730 | break; | |
2731 | case 0xE800: | |
2732 | /* ECB */ | |
2733 | break; | |
2734 | case 0xF000: | |
2735 | /* RS */ | |
2736 | gen_rx(ra, 1); | |
2737 | break; | |
2738 | case 0xF800: | |
2739 | /* WH64 */ | |
2740 | /* No-op */ | |
2741 | break; | |
2742 | default: | |
2743 | goto invalid_opc; | |
2744 | } | |
2745 | break; | |
2746 | case 0x19: | |
2747 | /* HW_MFPR (PALcode) */ | |
2748 | #ifndef CONFIG_USER_ONLY | |
2749 | if (ctx->tb->flags & TB_FLAGS_PAL_MODE) { | |
2750 | gen_mfpr(ra, insn & 0xffff); | |
2751 | break; | |
2752 | } | |
2753 | #endif | |
2754 | goto invalid_opc; | |
2755 | case 0x1A: | |
2756 | /* JMP, JSR, RET, JSR_COROUTINE. These only differ by the branch | |
2757 | prediction stack action, which of course we don't implement. */ | |
2758 | if (rb != 31) { | |
2759 | tcg_gen_andi_i64(cpu_pc, cpu_ir[rb], ~3); | |
2760 | } else { | |
2761 | tcg_gen_movi_i64(cpu_pc, 0); | |
2762 | } | |
2763 | if (ra != 31) { | |
2764 | tcg_gen_movi_i64(cpu_ir[ra], ctx->pc); | |
2765 | } | |
2766 | ret = EXIT_PC_UPDATED; | |
2767 | break; | |
2768 | case 0x1B: | |
2769 | /* HW_LD (PALcode) */ | |
2770 | #ifndef CONFIG_USER_ONLY | |
2771 | if (ctx->tb->flags & TB_FLAGS_PAL_MODE) { | |
2772 | TCGv addr; | |
2773 | ||
2774 | if (ra == 31) { | |
2775 | break; | |
2776 | } | |
2777 | ||
2778 | addr = tcg_temp_new(); | |
2779 | if (rb != 31) | |
2780 | tcg_gen_addi_i64(addr, cpu_ir[rb], disp12); | |
2781 | else | |
2782 | tcg_gen_movi_i64(addr, disp12); | |
2783 | switch ((insn >> 12) & 0xF) { | |
2784 | case 0x0: | |
2785 | /* Longword physical access (hw_ldl/p) */ | |
2786 | gen_helper_ldl_phys(cpu_ir[ra], addr); | |
2787 | break; | |
2788 | case 0x1: | |
2789 | /* Quadword physical access (hw_ldq/p) */ | |
2790 | gen_helper_ldq_phys(cpu_ir[ra], addr); | |
2791 | break; | |
2792 | case 0x2: | |
2793 | /* Longword physical access with lock (hw_ldl_l/p) */ | |
2794 | gen_helper_ldl_l_phys(cpu_ir[ra], addr); | |
2795 | break; | |
2796 | case 0x3: | |
2797 | /* Quadword physical access with lock (hw_ldq_l/p) */ | |
2798 | gen_helper_ldq_l_phys(cpu_ir[ra], addr); | |
2799 | break; | |
2800 | case 0x4: | |
2801 | /* Longword virtual PTE fetch (hw_ldl/v) */ | |
2802 | goto invalid_opc; | |
2803 | case 0x5: | |
2804 | /* Quadword virtual PTE fetch (hw_ldq/v) */ | |
2805 | goto invalid_opc; | |
2806 | break; | |
2807 | case 0x6: | |
2808 | /* Incpu_ir[ra]id */ | |
2809 | goto invalid_opc; | |
2810 | case 0x7: | |
2811 | /* Incpu_ir[ra]id */ | |
2812 | goto invalid_opc; | |
2813 | case 0x8: | |
2814 | /* Longword virtual access (hw_ldl) */ | |
2815 | goto invalid_opc; | |
2816 | case 0x9: | |
2817 | /* Quadword virtual access (hw_ldq) */ | |
2818 | goto invalid_opc; | |
2819 | case 0xA: | |
2820 | /* Longword virtual access with protection check (hw_ldl/w) */ | |
2821 | tcg_gen_qemu_ld32s(cpu_ir[ra], addr, MMU_KERNEL_IDX); | |
2822 | break; | |
2823 | case 0xB: | |
2824 | /* Quadword virtual access with protection check (hw_ldq/w) */ | |
2825 | tcg_gen_qemu_ld64(cpu_ir[ra], addr, MMU_KERNEL_IDX); | |
2826 | break; | |
2827 | case 0xC: | |
2828 | /* Longword virtual access with alt access mode (hw_ldl/a)*/ | |
2829 | goto invalid_opc; | |
2830 | case 0xD: | |
2831 | /* Quadword virtual access with alt access mode (hw_ldq/a) */ | |
2832 | goto invalid_opc; | |
2833 | case 0xE: | |
2834 | /* Longword virtual access with alternate access mode and | |
2835 | protection checks (hw_ldl/wa) */ | |
2836 | tcg_gen_qemu_ld32s(cpu_ir[ra], addr, MMU_USER_IDX); | |
2837 | break; | |
2838 | case 0xF: | |
2839 | /* Quadword virtual access with alternate access mode and | |
2840 | protection checks (hw_ldq/wa) */ | |
2841 | tcg_gen_qemu_ld64(cpu_ir[ra], addr, MMU_USER_IDX); | |
2842 | break; | |
2843 | } | |
2844 | tcg_temp_free(addr); | |
2845 | break; | |
2846 | } | |
2847 | #endif | |
2848 | goto invalid_opc; | |
2849 | case 0x1C: | |
2850 | switch (fn7) { | |
2851 | case 0x00: | |
2852 | /* SEXTB */ | |
2853 | if ((ctx->tb->flags & TB_FLAGS_AMASK_BWX) == 0) { | |
2854 | goto invalid_opc; | |
2855 | } | |
2856 | if (likely(rc != 31)) { | |
2857 | if (islit) | |
2858 | tcg_gen_movi_i64(cpu_ir[rc], (int64_t)((int8_t)lit)); | |
2859 | else | |
2860 | tcg_gen_ext8s_i64(cpu_ir[rc], cpu_ir[rb]); | |
2861 | } | |
2862 | break; | |
2863 | case 0x01: | |
2864 | /* SEXTW */ | |
2865 | if (ctx->tb->flags & TB_FLAGS_AMASK_BWX) { | |
2866 | if (likely(rc != 31)) { | |
2867 | if (islit) { | |
2868 | tcg_gen_movi_i64(cpu_ir[rc], (int64_t)((int16_t)lit)); | |
2869 | } else { | |
2870 | tcg_gen_ext16s_i64(cpu_ir[rc], cpu_ir[rb]); | |
2871 | } | |
2872 | } | |
2873 | break; | |
2874 | } | |
2875 | goto invalid_opc; | |
2876 | case 0x30: | |
2877 | /* CTPOP */ | |
2878 | if (ctx->tb->flags & TB_FLAGS_AMASK_CIX) { | |
2879 | if (likely(rc != 31)) { | |
2880 | if (islit) { | |
2881 | tcg_gen_movi_i64(cpu_ir[rc], ctpop64(lit)); | |
2882 | } else { | |
2883 | gen_helper_ctpop(cpu_ir[rc], cpu_ir[rb]); | |
2884 | } | |
2885 | } | |
2886 | break; | |
2887 | } | |
2888 | goto invalid_opc; | |
2889 | case 0x31: | |
2890 | /* PERR */ | |
2891 | if (ctx->tb->flags & TB_FLAGS_AMASK_MVI) { | |
2892 | gen_perr(ra, rb, rc, islit, lit); | |
2893 | break; | |
2894 | } | |
2895 | goto invalid_opc; | |
2896 | case 0x32: | |
2897 | /* CTLZ */ | |
2898 | if (ctx->tb->flags & TB_FLAGS_AMASK_CIX) { | |
2899 | if (likely(rc != 31)) { | |
2900 | if (islit) { | |
2901 | tcg_gen_movi_i64(cpu_ir[rc], clz64(lit)); | |
2902 | } else { | |
2903 | gen_helper_ctlz(cpu_ir[rc], cpu_ir[rb]); | |
2904 | } | |
2905 | } | |
2906 | break; | |
2907 | } | |
2908 | goto invalid_opc; | |
2909 | case 0x33: | |
2910 | /* CTTZ */ | |
2911 | if (ctx->tb->flags & TB_FLAGS_AMASK_CIX) { | |
2912 | if (likely(rc != 31)) { | |
2913 | if (islit) { | |
2914 | tcg_gen_movi_i64(cpu_ir[rc], ctz64(lit)); | |
2915 | } else { | |
2916 | gen_helper_cttz(cpu_ir[rc], cpu_ir[rb]); | |
2917 | } | |
2918 | } | |
2919 | break; | |
2920 | } | |
2921 | goto invalid_opc; | |
2922 | case 0x34: | |
2923 | /* UNPKBW */ | |
2924 | if (ctx->tb->flags & TB_FLAGS_AMASK_MVI) { | |
2925 | if (real_islit || ra != 31) { | |
2926 | goto invalid_opc; | |
2927 | } | |
2928 | gen_unpkbw(rb, rc); | |
2929 | break; | |
2930 | } | |
2931 | goto invalid_opc; | |
2932 | case 0x35: | |
2933 | /* UNPKBL */ | |
2934 | if (ctx->tb->flags & TB_FLAGS_AMASK_MVI) { | |
2935 | if (real_islit || ra != 31) { | |
2936 | goto invalid_opc; | |
2937 | } | |
2938 | gen_unpkbl(rb, rc); | |
2939 | break; | |
2940 | } | |
2941 | goto invalid_opc; | |
2942 | case 0x36: | |
2943 | /* PKWB */ | |
2944 | if (ctx->tb->flags & TB_FLAGS_AMASK_MVI) { | |
2945 | if (real_islit || ra != 31) { | |
2946 | goto invalid_opc; | |
2947 | } | |
2948 | gen_pkwb(rb, rc); | |
2949 | break; | |
2950 | } | |
2951 | goto invalid_opc; | |
2952 | case 0x37: | |
2953 | /* PKLB */ | |
2954 | if (ctx->tb->flags & TB_FLAGS_AMASK_MVI) { | |
2955 | if (real_islit || ra != 31) { | |
2956 | goto invalid_opc; | |
2957 | } | |
2958 | gen_pklb(rb, rc); | |
2959 | break; | |
2960 | } | |
2961 | goto invalid_opc; | |
2962 | case 0x38: | |
2963 | /* MINSB8 */ | |
2964 | if (ctx->tb->flags & TB_FLAGS_AMASK_MVI) { | |
2965 | gen_minsb8(ra, rb, rc, islit, lit); | |
2966 | break; | |
2967 | } | |
2968 | goto invalid_opc; | |
2969 | case 0x39: | |
2970 | /* MINSW4 */ | |
2971 | if (ctx->tb->flags & TB_FLAGS_AMASK_MVI) { | |
2972 | gen_minsw4(ra, rb, rc, islit, lit); | |
2973 | break; | |
2974 | } | |
2975 | goto invalid_opc; | |
2976 | case 0x3A: | |
2977 | /* MINUB8 */ | |
2978 | if (ctx->tb->flags & TB_FLAGS_AMASK_MVI) { | |
2979 | gen_minub8(ra, rb, rc, islit, lit); | |
2980 | break; | |
2981 | } | |
2982 | goto invalid_opc; | |
2983 | case 0x3B: | |
2984 | /* MINUW4 */ | |
2985 | if (ctx->tb->flags & TB_FLAGS_AMASK_MVI) { | |
2986 | gen_minuw4(ra, rb, rc, islit, lit); | |
2987 | break; | |
2988 | } | |
2989 | goto invalid_opc; | |
2990 | case 0x3C: | |
2991 | /* MAXUB8 */ | |
2992 | if (ctx->tb->flags & TB_FLAGS_AMASK_MVI) { | |
2993 | gen_maxub8(ra, rb, rc, islit, lit); | |
2994 | break; | |
2995 | } | |
2996 | goto invalid_opc; | |
2997 | case 0x3D: | |
2998 | /* MAXUW4 */ | |
2999 | if (ctx->tb->flags & TB_FLAGS_AMASK_MVI) { | |
3000 | gen_maxuw4(ra, rb, rc, islit, lit); | |
3001 | break; | |
3002 | } | |
3003 | goto invalid_opc; | |
3004 | case 0x3E: | |
3005 | /* MAXSB8 */ | |
3006 | if (ctx->tb->flags & TB_FLAGS_AMASK_MVI) { | |
3007 | gen_maxsb8(ra, rb, rc, islit, lit); | |
3008 | break; | |
3009 | } | |
3010 | goto invalid_opc; | |
3011 | case 0x3F: | |
3012 | /* MAXSW4 */ | |
3013 | if (ctx->tb->flags & TB_FLAGS_AMASK_MVI) { | |
3014 | gen_maxsw4(ra, rb, rc, islit, lit); | |
3015 | break; | |
3016 | } | |
3017 | goto invalid_opc; | |
3018 | case 0x70: | |
3019 | /* FTOIT */ | |
3020 | if ((ctx->tb->flags & TB_FLAGS_AMASK_FIX) == 0) { | |
3021 | goto invalid_opc; | |
3022 | } | |
3023 | if (likely(rc != 31)) { | |
3024 | if (ra != 31) | |
3025 | tcg_gen_mov_i64(cpu_ir[rc], cpu_fir[ra]); | |
3026 | else | |
3027 | tcg_gen_movi_i64(cpu_ir[rc], 0); | |
3028 | } | |
3029 | break; | |
3030 | case 0x78: | |
3031 | /* FTOIS */ | |
3032 | if ((ctx->tb->flags & TB_FLAGS_AMASK_FIX) == 0) { | |
3033 | goto invalid_opc; | |
3034 | } | |
3035 | if (rc != 31) { | |
3036 | TCGv_i32 tmp1 = tcg_temp_new_i32(); | |
3037 | if (ra != 31) | |
3038 | gen_helper_s_to_memory(tmp1, cpu_fir[ra]); | |
3039 | else { | |
3040 | TCGv tmp2 = tcg_const_i64(0); | |
3041 | gen_helper_s_to_memory(tmp1, tmp2); | |
3042 | tcg_temp_free(tmp2); | |
3043 | } | |
3044 | tcg_gen_ext_i32_i64(cpu_ir[rc], tmp1); | |
3045 | tcg_temp_free_i32(tmp1); | |
3046 | } | |
3047 | break; | |
3048 | default: | |
3049 | goto invalid_opc; | |
3050 | } | |
3051 | break; | |
3052 | case 0x1D: | |
3053 | /* HW_MTPR (PALcode) */ | |
3054 | #ifndef CONFIG_USER_ONLY | |
3055 | if (ctx->tb->flags & TB_FLAGS_PAL_MODE) { | |
3056 | gen_mtpr(rb, insn & 0xffff); | |
3057 | break; | |
3058 | } | |
3059 | #endif | |
3060 | goto invalid_opc; | |
3061 | case 0x1E: | |
3062 | /* HW_RET (PALcode) */ | |
3063 | #ifndef CONFIG_USER_ONLY | |
3064 | if (ctx->tb->flags & TB_FLAGS_PAL_MODE) { | |
3065 | if (rb == 31) { | |
3066 | /* Pre-EV6 CPUs interpreted this as HW_REI, loading the return | |
3067 | address from EXC_ADDR. This turns out to be useful for our | |
3068 | emulation PALcode, so continue to accept it. */ | |
3069 | TCGv tmp = tcg_temp_new(); | |
3070 | tcg_gen_ld_i64(tmp, cpu_env, offsetof(CPUState, exc_addr)); | |
3071 | gen_helper_hw_ret(tmp); | |
3072 | tcg_temp_free(tmp); | |
3073 | } else { | |
3074 | gen_helper_hw_ret(cpu_ir[rb]); | |
3075 | } | |
3076 | ret = EXIT_PC_UPDATED; | |
3077 | break; | |
3078 | } | |
3079 | #endif | |
3080 | goto invalid_opc; | |
3081 | case 0x1F: | |
3082 | /* HW_ST (PALcode) */ | |
3083 | #ifndef CONFIG_USER_ONLY | |
3084 | if (ctx->tb->flags & TB_FLAGS_PAL_MODE) { | |
3085 | TCGv addr, val; | |
3086 | addr = tcg_temp_new(); | |
3087 | if (rb != 31) | |
3088 | tcg_gen_addi_i64(addr, cpu_ir[rb], disp12); | |
3089 | else | |
3090 | tcg_gen_movi_i64(addr, disp12); | |
3091 | if (ra != 31) | |
3092 | val = cpu_ir[ra]; | |
3093 | else { | |
3094 | val = tcg_temp_new(); | |
3095 | tcg_gen_movi_i64(val, 0); | |
3096 | } | |
3097 | switch ((insn >> 12) & 0xF) { | |
3098 | case 0x0: | |
3099 | /* Longword physical access */ | |
3100 | gen_helper_stl_phys(addr, val); | |
3101 | break; | |
3102 | case 0x1: | |
3103 | /* Quadword physical access */ | |
3104 | gen_helper_stq_phys(addr, val); | |
3105 | break; | |
3106 | case 0x2: | |
3107 | /* Longword physical access with lock */ | |
3108 | gen_helper_stl_c_phys(val, addr, val); | |
3109 | break; | |
3110 | case 0x3: | |
3111 | /* Quadword physical access with lock */ | |
3112 | gen_helper_stq_c_phys(val, addr, val); | |
3113 | break; | |
3114 | case 0x4: | |
3115 | /* Longword virtual access */ | |
3116 | goto invalid_opc; | |
3117 | case 0x5: | |
3118 | /* Quadword virtual access */ | |
3119 | goto invalid_opc; | |
3120 | case 0x6: | |
3121 | /* Invalid */ | |
3122 | goto invalid_opc; | |
3123 | case 0x7: | |
3124 | /* Invalid */ | |
3125 | goto invalid_opc; | |
3126 | case 0x8: | |
3127 | /* Invalid */ | |
3128 | goto invalid_opc; | |
3129 | case 0x9: | |
3130 | /* Invalid */ | |
3131 | goto invalid_opc; | |
3132 | case 0xA: | |
3133 | /* Invalid */ | |
3134 | goto invalid_opc; | |
3135 | case 0xB: | |
3136 | /* Invalid */ | |
3137 | goto invalid_opc; | |
3138 | case 0xC: | |
3139 | /* Longword virtual access with alternate access mode */ | |
3140 | goto invalid_opc; | |
3141 | case 0xD: | |
3142 | /* Quadword virtual access with alternate access mode */ | |
3143 | goto invalid_opc; | |
3144 | case 0xE: | |
3145 | /* Invalid */ | |
3146 | goto invalid_opc; | |
3147 | case 0xF: | |
3148 | /* Invalid */ | |
3149 | goto invalid_opc; | |
3150 | } | |
3151 | if (ra == 31) | |
3152 | tcg_temp_free(val); | |
3153 | tcg_temp_free(addr); | |
3154 | break; | |
3155 | } | |
3156 | #endif | |
3157 | goto invalid_opc; | |
3158 | case 0x20: | |
3159 | /* LDF */ | |
3160 | gen_load_mem(ctx, &gen_qemu_ldf, ra, rb, disp16, 1, 0); | |
3161 | break; | |
3162 | case 0x21: | |
3163 | /* LDG */ | |
3164 | gen_load_mem(ctx, &gen_qemu_ldg, ra, rb, disp16, 1, 0); | |
3165 | break; | |
3166 | case 0x22: | |
3167 | /* LDS */ | |
3168 | gen_load_mem(ctx, &gen_qemu_lds, ra, rb, disp16, 1, 0); | |
3169 | break; | |
3170 | case 0x23: | |
3171 | /* LDT */ | |
3172 | gen_load_mem(ctx, &tcg_gen_qemu_ld64, ra, rb, disp16, 1, 0); | |
3173 | break; | |
3174 | case 0x24: | |
3175 | /* STF */ | |
3176 | gen_store_mem(ctx, &gen_qemu_stf, ra, rb, disp16, 1, 0); | |
3177 | break; | |
3178 | case 0x25: | |
3179 | /* STG */ | |
3180 | gen_store_mem(ctx, &gen_qemu_stg, ra, rb, disp16, 1, 0); | |
3181 | break; | |
3182 | case 0x26: | |
3183 | /* STS */ | |
3184 | gen_store_mem(ctx, &gen_qemu_sts, ra, rb, disp16, 1, 0); | |
3185 | break; | |
3186 | case 0x27: | |
3187 | /* STT */ | |
3188 | gen_store_mem(ctx, &tcg_gen_qemu_st64, ra, rb, disp16, 1, 0); | |
3189 | break; | |
3190 | case 0x28: | |
3191 | /* LDL */ | |
3192 | gen_load_mem(ctx, &tcg_gen_qemu_ld32s, ra, rb, disp16, 0, 0); | |
3193 | break; | |
3194 | case 0x29: | |
3195 | /* LDQ */ | |
3196 | gen_load_mem(ctx, &tcg_gen_qemu_ld64, ra, rb, disp16, 0, 0); | |
3197 | break; | |
3198 | case 0x2A: | |
3199 | /* LDL_L */ | |
3200 | gen_load_mem(ctx, &gen_qemu_ldl_l, ra, rb, disp16, 0, 0); | |
3201 | break; | |
3202 | case 0x2B: | |
3203 | /* LDQ_L */ | |
3204 | gen_load_mem(ctx, &gen_qemu_ldq_l, ra, rb, disp16, 0, 0); | |
3205 | break; | |
3206 | case 0x2C: | |
3207 | /* STL */ | |
3208 | gen_store_mem(ctx, &tcg_gen_qemu_st32, ra, rb, disp16, 0, 0); | |
3209 | break; | |
3210 | case 0x2D: | |
3211 | /* STQ */ | |
3212 | gen_store_mem(ctx, &tcg_gen_qemu_st64, ra, rb, disp16, 0, 0); | |
3213 | break; | |
3214 | case 0x2E: | |
3215 | /* STL_C */ | |
3216 | ret = gen_store_conditional(ctx, ra, rb, disp16, 0); | |
3217 | break; | |
3218 | case 0x2F: | |
3219 | /* STQ_C */ | |
3220 | ret = gen_store_conditional(ctx, ra, rb, disp16, 1); | |
3221 | break; | |
3222 | case 0x30: | |
3223 | /* BR */ | |
3224 | ret = gen_bdirect(ctx, ra, disp21); | |
3225 | break; | |
3226 | case 0x31: /* FBEQ */ | |
3227 | ret = gen_fbcond(ctx, TCG_COND_EQ, ra, disp21); | |
3228 | break; | |
3229 | case 0x32: /* FBLT */ | |
3230 | ret = gen_fbcond(ctx, TCG_COND_LT, ra, disp21); | |
3231 | break; | |
3232 | case 0x33: /* FBLE */ | |
3233 | ret = gen_fbcond(ctx, TCG_COND_LE, ra, disp21); | |
3234 | break; | |
3235 | case 0x34: | |
3236 | /* BSR */ | |
3237 | ret = gen_bdirect(ctx, ra, disp21); | |
3238 | break; | |
3239 | case 0x35: /* FBNE */ | |
3240 | ret = gen_fbcond(ctx, TCG_COND_NE, ra, disp21); | |
3241 | break; | |
3242 | case 0x36: /* FBGE */ | |
3243 | ret = gen_fbcond(ctx, TCG_COND_GE, ra, disp21); | |
3244 | break; | |
3245 | case 0x37: /* FBGT */ | |
3246 | ret = gen_fbcond(ctx, TCG_COND_GT, ra, disp21); | |
3247 | break; | |
3248 | case 0x38: | |
3249 | /* BLBC */ | |
3250 | ret = gen_bcond(ctx, TCG_COND_EQ, ra, disp21, 1); | |
3251 | break; | |
3252 | case 0x39: | |
3253 | /* BEQ */ | |
3254 | ret = gen_bcond(ctx, TCG_COND_EQ, ra, disp21, 0); | |
3255 | break; | |
3256 | case 0x3A: | |
3257 | /* BLT */ | |
3258 | ret = gen_bcond(ctx, TCG_COND_LT, ra, disp21, 0); | |
3259 | break; | |
3260 | case 0x3B: | |
3261 | /* BLE */ | |
3262 | ret = gen_bcond(ctx, TCG_COND_LE, ra, disp21, 0); | |
3263 | break; | |
3264 | case 0x3C: | |
3265 | /* BLBS */ | |
3266 | ret = gen_bcond(ctx, TCG_COND_NE, ra, disp21, 1); | |
3267 | break; | |
3268 | case 0x3D: | |
3269 | /* BNE */ | |
3270 | ret = gen_bcond(ctx, TCG_COND_NE, ra, disp21, 0); | |
3271 | break; | |
3272 | case 0x3E: | |
3273 | /* BGE */ | |
3274 | ret = gen_bcond(ctx, TCG_COND_GE, ra, disp21, 0); | |
3275 | break; | |
3276 | case 0x3F: | |
3277 | /* BGT */ | |
3278 | ret = gen_bcond(ctx, TCG_COND_GT, ra, disp21, 0); | |
3279 | break; | |
3280 | invalid_opc: | |
3281 | ret = gen_invalid(ctx); | |
3282 | break; | |
3283 | } | |
3284 | ||
3285 | return ret; | |
3286 | } | |
3287 | ||
3288 | static inline void gen_intermediate_code_internal(CPUState *env, | |
3289 | TranslationBlock *tb, | |
3290 | int search_pc) | |
3291 | { | |
3292 | DisasContext ctx, *ctxp = &ctx; | |
3293 | target_ulong pc_start; | |
3294 | uint32_t insn; | |
3295 | uint16_t *gen_opc_end; | |
3296 | CPUBreakpoint *bp; | |
3297 | int j, lj = -1; | |
3298 | ExitStatus ret; | |
3299 | int num_insns; | |
3300 | int max_insns; | |
3301 | ||
3302 | pc_start = tb->pc; | |
3303 | gen_opc_end = gen_opc_buf + OPC_MAX_SIZE; | |
3304 | ||
3305 | ctx.tb = tb; | |
3306 | ctx.env = env; | |
3307 | ctx.pc = pc_start; | |
3308 | ctx.mem_idx = cpu_mmu_index(env); | |
3309 | ||
3310 | /* ??? Every TB begins with unset rounding mode, to be initialized on | |
3311 | the first fp insn of the TB. Alternately we could define a proper | |
3312 | default for every TB (e.g. QUAL_RM_N or QUAL_RM_D) and make sure | |
3313 | to reset the FP_STATUS to that default at the end of any TB that | |
3314 | changes the default. We could even (gasp) dynamiclly figure out | |
3315 | what default would be most efficient given the running program. */ | |
3316 | ctx.tb_rm = -1; | |
3317 | /* Similarly for flush-to-zero. */ | |
3318 | ctx.tb_ftz = -1; | |
3319 | ||
3320 | num_insns = 0; | |
3321 | max_insns = tb->cflags & CF_COUNT_MASK; | |
3322 | if (max_insns == 0) | |
3323 | max_insns = CF_COUNT_MASK; | |
3324 | ||
3325 | gen_icount_start(); | |
3326 | do { | |
3327 | if (unlikely(!QTAILQ_EMPTY(&env->breakpoints))) { | |
3328 | QTAILQ_FOREACH(bp, &env->breakpoints, entry) { | |
3329 | if (bp->pc == ctx.pc) { | |
3330 | gen_excp(&ctx, EXCP_DEBUG, 0); | |
3331 | break; | |
3332 | } | |
3333 | } | |
3334 | } | |
3335 | if (search_pc) { | |
3336 | j = gen_opc_ptr - gen_opc_buf; | |
3337 | if (lj < j) { | |
3338 | lj++; | |
3339 | while (lj < j) | |
3340 | gen_opc_instr_start[lj++] = 0; | |
3341 | } | |
3342 | gen_opc_pc[lj] = ctx.pc; | |
3343 | gen_opc_instr_start[lj] = 1; | |
3344 | gen_opc_icount[lj] = num_insns; | |
3345 | } | |
3346 | if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO)) | |
3347 | gen_io_start(); | |
3348 | insn = ldl_code(ctx.pc); | |
3349 | num_insns++; | |
3350 | ||
3351 | if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP))) { | |
3352 | tcg_gen_debug_insn_start(ctx.pc); | |
3353 | } | |
3354 | ||
3355 | ctx.pc += 4; | |
3356 | ret = translate_one(ctxp, insn); | |
3357 | ||
3358 | /* If we reach a page boundary, are single stepping, | |
3359 | or exhaust instruction count, stop generation. */ | |
3360 | if (ret == NO_EXIT | |
3361 | && ((ctx.pc & (TARGET_PAGE_SIZE - 1)) == 0 | |
3362 | || gen_opc_ptr >= gen_opc_end | |
3363 | || num_insns >= max_insns | |
3364 | || singlestep | |
3365 | || env->singlestep_enabled)) { | |
3366 | ret = EXIT_PC_STALE; | |
3367 | } | |
3368 | } while (ret == NO_EXIT); | |
3369 | ||
3370 | if (tb->cflags & CF_LAST_IO) { | |
3371 | gen_io_end(); | |
3372 | } | |
3373 | ||
3374 | switch (ret) { | |
3375 | case EXIT_GOTO_TB: | |
3376 | case EXIT_NORETURN: | |
3377 | break; | |
3378 | case EXIT_PC_STALE: | |
3379 | tcg_gen_movi_i64(cpu_pc, ctx.pc); | |
3380 | /* FALLTHRU */ | |
3381 | case EXIT_PC_UPDATED: | |
3382 | if (env->singlestep_enabled) { | |
3383 | gen_excp_1(EXCP_DEBUG, 0); | |
3384 | } else { | |
3385 | tcg_gen_exit_tb(0); | |
3386 | } | |
3387 | break; | |
3388 | default: | |
3389 | abort(); | |
3390 | } | |
3391 | ||
3392 | gen_icount_end(tb, num_insns); | |
3393 | *gen_opc_ptr = INDEX_op_end; | |
3394 | if (search_pc) { | |
3395 | j = gen_opc_ptr - gen_opc_buf; | |
3396 | lj++; | |
3397 | while (lj <= j) | |
3398 | gen_opc_instr_start[lj++] = 0; | |
3399 | } else { | |
3400 | tb->size = ctx.pc - pc_start; | |
3401 | tb->icount = num_insns; | |
3402 | } | |
3403 | ||
3404 | #ifdef DEBUG_DISAS | |
3405 | if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) { | |
3406 | qemu_log("IN: %s\n", lookup_symbol(pc_start)); | |
3407 | log_target_disas(pc_start, ctx.pc - pc_start, 1); | |
3408 | qemu_log("\n"); | |
3409 | } | |
3410 | #endif | |
3411 | } | |
3412 | ||
3413 | void gen_intermediate_code (CPUState *env, struct TranslationBlock *tb) | |
3414 | { | |
3415 | gen_intermediate_code_internal(env, tb, 0); | |
3416 | } | |
3417 | ||
3418 | void gen_intermediate_code_pc (CPUState *env, struct TranslationBlock *tb) | |
3419 | { | |
3420 | gen_intermediate_code_internal(env, tb, 1); | |
3421 | } | |
3422 | ||
3423 | struct cpu_def_t { | |
3424 | const char *name; | |
3425 | int implver, amask; | |
3426 | }; | |
3427 | ||
3428 | static const struct cpu_def_t cpu_defs[] = { | |
3429 | { "ev4", IMPLVER_2106x, 0 }, | |
3430 | { "ev5", IMPLVER_21164, 0 }, | |
3431 | { "ev56", IMPLVER_21164, AMASK_BWX }, | |
3432 | { "pca56", IMPLVER_21164, AMASK_BWX | AMASK_MVI }, | |
3433 | { "ev6", IMPLVER_21264, AMASK_BWX | AMASK_FIX | AMASK_MVI | AMASK_TRAP }, | |
3434 | { "ev67", IMPLVER_21264, (AMASK_BWX | AMASK_FIX | AMASK_CIX | |
3435 | | AMASK_MVI | AMASK_TRAP | AMASK_PREFETCH), }, | |
3436 | { "ev68", IMPLVER_21264, (AMASK_BWX | AMASK_FIX | AMASK_CIX | |
3437 | | AMASK_MVI | AMASK_TRAP | AMASK_PREFETCH), }, | |
3438 | { "21064", IMPLVER_2106x, 0 }, | |
3439 | { "21164", IMPLVER_21164, 0 }, | |
3440 | { "21164a", IMPLVER_21164, AMASK_BWX }, | |
3441 | { "21164pc", IMPLVER_21164, AMASK_BWX | AMASK_MVI }, | |
3442 | { "21264", IMPLVER_21264, AMASK_BWX | AMASK_FIX | AMASK_MVI | AMASK_TRAP }, | |
3443 | { "21264a", IMPLVER_21264, (AMASK_BWX | AMASK_FIX | AMASK_CIX | |
3444 | | AMASK_MVI | AMASK_TRAP | AMASK_PREFETCH), } | |
3445 | }; | |
3446 | ||
3447 | CPUAlphaState * cpu_alpha_init (const char *cpu_model) | |
3448 | { | |
3449 | CPUAlphaState *env; | |
3450 | int implver, amask, i, max; | |
3451 | ||
3452 | env = qemu_mallocz(sizeof(CPUAlphaState)); | |
3453 | cpu_exec_init(env); | |
3454 | alpha_translate_init(); | |
3455 | tlb_flush(env, 1); | |
3456 | ||
3457 | /* Default to ev67; no reason not to emulate insns by default. */ | |
3458 | implver = IMPLVER_21264; | |
3459 | amask = (AMASK_BWX | AMASK_FIX | AMASK_CIX | AMASK_MVI | |
3460 | | AMASK_TRAP | AMASK_PREFETCH); | |
3461 | ||
3462 | max = ARRAY_SIZE(cpu_defs); | |
3463 | for (i = 0; i < max; i++) { | |
3464 | if (strcmp (cpu_model, cpu_defs[i].name) == 0) { | |
3465 | implver = cpu_defs[i].implver; | |
3466 | amask = cpu_defs[i].amask; | |
3467 | break; | |
3468 | } | |
3469 | } | |
3470 | env->implver = implver; | |
3471 | env->amask = amask; | |
3472 | ||
3473 | #if defined (CONFIG_USER_ONLY) | |
3474 | env->ps = PS_USER_MODE; | |
3475 | cpu_alpha_store_fpcr(env, (FPCR_INVD | FPCR_DZED | FPCR_OVFD | |
3476 | | FPCR_UNFD | FPCR_INED | FPCR_DNOD)); | |
3477 | #endif | |
3478 | env->lock_addr = -1; | |
3479 | env->fen = 1; | |
3480 | ||
3481 | qemu_init_vcpu(env); | |
3482 | return env; | |
3483 | } | |
3484 | ||
3485 | void restore_state_to_opc(CPUState *env, TranslationBlock *tb, int pc_pos) | |
3486 | { | |
3487 | env->pc = gen_opc_pc[pc_pos]; | |
3488 | } |