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target/i386: Fix bad patch application to translate.c
[qemu/ar7.git] / target / ppc / fpu_helper.c
blob8a389e19af6b1914798e7b5ec734ab2c150e2296
1 /*
2 * PowerPC floating point and SPE emulation helpers for QEMU.
3 *
4 * Copyright (c) 2003-2007 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 #include "qemu/osdep.h"
20 #include "cpu.h"
21 #include "exec/helper-proto.h"
22 #include "exec/exec-all.h"
23
24 #define float64_snan_to_qnan(x) ((x) | 0x0008000000000000ULL)
25 #define float32_snan_to_qnan(x) ((x) | 0x00400000)
26
27 /*****************************************************************************/
28 /* Floating point operations helpers */
29 uint64_t helper_float32_to_float64(CPUPPCState *env, uint32_t arg)
30 {
31 CPU_FloatU f;
32 CPU_DoubleU d;
33
34 f.l = arg;
35 d.d = float32_to_float64(f.f, &env->fp_status);
36 return d.ll;
37 }
38
39 uint32_t helper_float64_to_float32(CPUPPCState *env, uint64_t arg)
40 {
41 CPU_FloatU f;
42 CPU_DoubleU d;
43
44 d.ll = arg;
45 f.f = float64_to_float32(d.d, &env->fp_status);
46 return f.l;
47 }
48
49 static inline int isden(float64 d)
50 {
51 CPU_DoubleU u;
52
53 u.d = d;
54
55 return ((u.ll >> 52) & 0x7FF) == 0;
56 }
57
58 static inline int ppc_float32_get_unbiased_exp(float32 f)
59 {
60 return ((f >> 23) & 0xFF) - 127;
61 }
62
63 static inline int ppc_float64_get_unbiased_exp(float64 f)
64 {
65 return ((f >> 52) & 0x7FF) - 1023;
66 }
67
68 void helper_compute_fprf(CPUPPCState *env, uint64_t arg)
69 {
70 CPU_DoubleU farg;
71 int isneg;
72 int fprf;
73
74 farg.ll = arg;
75 isneg = float64_is_neg(farg.d);
76 if (unlikely(float64_is_any_nan(farg.d))) {
77 if (float64_is_signaling_nan(farg.d, &env->fp_status)) {
78 /* Signaling NaN: flags are undefined */
79 fprf = 0x00;
80 } else {
81 /* Quiet NaN */
82 fprf = 0x11;
83 }
84 } else if (unlikely(float64_is_infinity(farg.d))) {
85 /* +/- infinity */
86 if (isneg) {
87 fprf = 0x09;
88 } else {
89 fprf = 0x05;
90 }
91 } else {
92 if (float64_is_zero(farg.d)) {
93 /* +/- zero */
94 if (isneg) {
95 fprf = 0x12;
96 } else {
97 fprf = 0x02;
98 }
99 } else {
100 if (isden(farg.d)) {
101 /* Denormalized numbers */
102 fprf = 0x10;
103 } else {
104 /* Normalized numbers */
105 fprf = 0x00;
106 }
107 if (isneg) {
108 fprf |= 0x08;
109 } else {
110 fprf |= 0x04;
111 }
112 }
113 }
114 /* We update FPSCR_FPRF */
115 env->fpscr &= ~(0x1F << FPSCR_FPRF);
116 env->fpscr |= fprf << FPSCR_FPRF;
117 }
118
119 /* Floating-point invalid operations exception */
120 static inline __attribute__((__always_inline__))
121 uint64_t float_invalid_op_excp(CPUPPCState *env, int op, int set_fpcc)
122 {
123 CPUState *cs = CPU(ppc_env_get_cpu(env));
124 uint64_t ret = 0;
125 int ve;
126
127 ve = fpscr_ve;
128 switch (op) {
129 case POWERPC_EXCP_FP_VXSNAN:
130 env->fpscr |= 1 << FPSCR_VXSNAN;
131 break;
132 case POWERPC_EXCP_FP_VXSOFT:
133 env->fpscr |= 1 << FPSCR_VXSOFT;
134 break;
135 case POWERPC_EXCP_FP_VXISI:
136 /* Magnitude subtraction of infinities */
137 env->fpscr |= 1 << FPSCR_VXISI;
138 goto update_arith;
139 case POWERPC_EXCP_FP_VXIDI:
140 /* Division of infinity by infinity */
141 env->fpscr |= 1 << FPSCR_VXIDI;
142 goto update_arith;
143 case POWERPC_EXCP_FP_VXZDZ:
144 /* Division of zero by zero */
145 env->fpscr |= 1 << FPSCR_VXZDZ;
146 goto update_arith;
147 case POWERPC_EXCP_FP_VXIMZ:
148 /* Multiplication of zero by infinity */
149 env->fpscr |= 1 << FPSCR_VXIMZ;
150 goto update_arith;
151 case POWERPC_EXCP_FP_VXVC:
152 /* Ordered comparison of NaN */
153 env->fpscr |= 1 << FPSCR_VXVC;
154 if (set_fpcc) {
155 env->fpscr &= ~(0xF << FPSCR_FPCC);
156 env->fpscr |= 0x11 << FPSCR_FPCC;
157 }
158 /* We must update the target FPR before raising the exception */
159 if (ve != 0) {
160 cs->exception_index = POWERPC_EXCP_PROGRAM;
161 env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_VXVC;
162 /* Update the floating-point enabled exception summary */
163 env->fpscr |= 1 << FPSCR_FEX;
164 /* Exception is differed */
165 ve = 0;
166 }
167 break;
168 case POWERPC_EXCP_FP_VXSQRT:
169 /* Square root of a negative number */
170 env->fpscr |= 1 << FPSCR_VXSQRT;
171 update_arith:
172 env->fpscr &= ~((1 << FPSCR_FR) | (1 << FPSCR_FI));
173 if (ve == 0) {
174 /* Set the result to quiet NaN */
175 ret = 0x7FF8000000000000ULL;
176 if (set_fpcc) {
177 env->fpscr &= ~(0xF << FPSCR_FPCC);
178 env->fpscr |= 0x11 << FPSCR_FPCC;
179 }
180 }
181 break;
182 case POWERPC_EXCP_FP_VXCVI:
183 /* Invalid conversion */
184 env->fpscr |= 1 << FPSCR_VXCVI;
185 env->fpscr &= ~((1 << FPSCR_FR) | (1 << FPSCR_FI));
186 if (ve == 0) {
187 /* Set the result to quiet NaN */
188 ret = 0x7FF8000000000000ULL;
189 if (set_fpcc) {
190 env->fpscr &= ~(0xF << FPSCR_FPCC);
191 env->fpscr |= 0x11 << FPSCR_FPCC;
192 }
193 }
194 break;
195 }
196 /* Update the floating-point invalid operation summary */
197 env->fpscr |= 1 << FPSCR_VX;
198 /* Update the floating-point exception summary */
199 env->fpscr |= FP_FX;
200 if (ve != 0) {
201 /* Update the floating-point enabled exception summary */
202 env->fpscr |= 1 << FPSCR_FEX;
203 if (msr_fe0 != 0 || msr_fe1 != 0) {
204 /* GETPC() works here because this is inline */
205 raise_exception_err_ra(env, POWERPC_EXCP_PROGRAM,
206 POWERPC_EXCP_FP | op, GETPC());
207 }
208 }
209 return ret;
210 }
211
212 static inline void float_zero_divide_excp(CPUPPCState *env, uintptr_t raddr)
213 {
214 env->fpscr |= 1 << FPSCR_ZX;
215 env->fpscr &= ~((1 << FPSCR_FR) | (1 << FPSCR_FI));
216 /* Update the floating-point exception summary */
217 env->fpscr |= FP_FX;
218 if (fpscr_ze != 0) {
219 /* Update the floating-point enabled exception summary */
220 env->fpscr |= 1 << FPSCR_FEX;
221 if (msr_fe0 != 0 || msr_fe1 != 0) {
222 raise_exception_err_ra(env, POWERPC_EXCP_PROGRAM,
223 POWERPC_EXCP_FP | POWERPC_EXCP_FP_ZX,
224 raddr);
225 }
226 }
227 }
228
229 static inline void float_overflow_excp(CPUPPCState *env)
230 {
231 CPUState *cs = CPU(ppc_env_get_cpu(env));
232
233 env->fpscr |= 1 << FPSCR_OX;
234 /* Update the floating-point exception summary */
235 env->fpscr |= FP_FX;
236 if (fpscr_oe != 0) {
237 /* XXX: should adjust the result */
238 /* Update the floating-point enabled exception summary */
239 env->fpscr |= 1 << FPSCR_FEX;
240 /* We must update the target FPR before raising the exception */
241 cs->exception_index = POWERPC_EXCP_PROGRAM;
242 env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_OX;
243 } else {
244 env->fpscr |= 1 << FPSCR_XX;
245 env->fpscr |= 1 << FPSCR_FI;
246 }
247 }
248
249 static inline void float_underflow_excp(CPUPPCState *env)
250 {
251 CPUState *cs = CPU(ppc_env_get_cpu(env));
252
253 env->fpscr |= 1 << FPSCR_UX;
254 /* Update the floating-point exception summary */
255 env->fpscr |= FP_FX;
256 if (fpscr_ue != 0) {
257 /* XXX: should adjust the result */
258 /* Update the floating-point enabled exception summary */
259 env->fpscr |= 1 << FPSCR_FEX;
260 /* We must update the target FPR before raising the exception */
261 cs->exception_index = POWERPC_EXCP_PROGRAM;
262 env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_UX;
263 }
264 }
265
266 static inline void float_inexact_excp(CPUPPCState *env)
267 {
268 CPUState *cs = CPU(ppc_env_get_cpu(env));
269
270 env->fpscr |= 1 << FPSCR_XX;
271 /* Update the floating-point exception summary */
272 env->fpscr |= FP_FX;
273 if (fpscr_xe != 0) {
274 /* Update the floating-point enabled exception summary */
275 env->fpscr |= 1 << FPSCR_FEX;
276 /* We must update the target FPR before raising the exception */
277 cs->exception_index = POWERPC_EXCP_PROGRAM;
278 env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_XX;
279 }
280 }
281
282 static inline void fpscr_set_rounding_mode(CPUPPCState *env)
283 {
284 int rnd_type;
285
286 /* Set rounding mode */
287 switch (fpscr_rn) {
288 case 0:
289 /* Best approximation (round to nearest) */
290 rnd_type = float_round_nearest_even;
291 break;
292 case 1:
293 /* Smaller magnitude (round toward zero) */
294 rnd_type = float_round_to_zero;
295 break;
296 case 2:
297 /* Round toward +infinite */
298 rnd_type = float_round_up;
299 break;
300 default:
301 case 3:
302 /* Round toward -infinite */
303 rnd_type = float_round_down;
304 break;
305 }
306 set_float_rounding_mode(rnd_type, &env->fp_status);
307 }
308
309 void helper_fpscr_clrbit(CPUPPCState *env, uint32_t bit)
310 {
311 int prev;
312
313 prev = (env->fpscr >> bit) & 1;
314 env->fpscr &= ~(1 << bit);
315 if (prev == 1) {
316 switch (bit) {
317 case FPSCR_RN1:
318 case FPSCR_RN:
319 fpscr_set_rounding_mode(env);
320 break;
321 default:
322 break;
323 }
324 }
325 }
326
327 void helper_fpscr_setbit(CPUPPCState *env, uint32_t bit)
328 {
329 CPUState *cs = CPU(ppc_env_get_cpu(env));
330 int prev;
331
332 prev = (env->fpscr >> bit) & 1;
333 env->fpscr |= 1 << bit;
334 if (prev == 0) {
335 switch (bit) {
336 case FPSCR_VX:
337 env->fpscr |= FP_FX;
338 if (fpscr_ve) {
339 goto raise_ve;
340 }
341 break;
342 case FPSCR_OX:
343 env->fpscr |= FP_FX;
344 if (fpscr_oe) {
345 goto raise_oe;
346 }
347 break;
348 case FPSCR_UX:
349 env->fpscr |= FP_FX;
350 if (fpscr_ue) {
351 goto raise_ue;
352 }
353 break;
354 case FPSCR_ZX:
355 env->fpscr |= FP_FX;
356 if (fpscr_ze) {
357 goto raise_ze;
358 }
359 break;
360 case FPSCR_XX:
361 env->fpscr |= FP_FX;
362 if (fpscr_xe) {
363 goto raise_xe;
364 }
365 break;
366 case FPSCR_VXSNAN:
367 case FPSCR_VXISI:
368 case FPSCR_VXIDI:
369 case FPSCR_VXZDZ:
370 case FPSCR_VXIMZ:
371 case FPSCR_VXVC:
372 case FPSCR_VXSOFT:
373 case FPSCR_VXSQRT:
374 case FPSCR_VXCVI:
375 env->fpscr |= 1 << FPSCR_VX;
376 env->fpscr |= FP_FX;
377 if (fpscr_ve != 0) {
378 goto raise_ve;
379 }
380 break;
381 case FPSCR_VE:
382 if (fpscr_vx != 0) {
383 raise_ve:
384 env->error_code = POWERPC_EXCP_FP;
385 if (fpscr_vxsnan) {
386 env->error_code |= POWERPC_EXCP_FP_VXSNAN;
387 }
388 if (fpscr_vxisi) {
389 env->error_code |= POWERPC_EXCP_FP_VXISI;
390 }
391 if (fpscr_vxidi) {
392 env->error_code |= POWERPC_EXCP_FP_VXIDI;
393 }
394 if (fpscr_vxzdz) {
395 env->error_code |= POWERPC_EXCP_FP_VXZDZ;
396 }
397 if (fpscr_vximz) {
398 env->error_code |= POWERPC_EXCP_FP_VXIMZ;
399 }
400 if (fpscr_vxvc) {
401 env->error_code |= POWERPC_EXCP_FP_VXVC;
402 }
403 if (fpscr_vxsoft) {
404 env->error_code |= POWERPC_EXCP_FP_VXSOFT;
405 }
406 if (fpscr_vxsqrt) {
407 env->error_code |= POWERPC_EXCP_FP_VXSQRT;
408 }
409 if (fpscr_vxcvi) {
410 env->error_code |= POWERPC_EXCP_FP_VXCVI;
411 }
412 goto raise_excp;
413 }
414 break;
415 case FPSCR_OE:
416 if (fpscr_ox != 0) {
417 raise_oe:
418 env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_OX;
419 goto raise_excp;
420 }
421 break;
422 case FPSCR_UE:
423 if (fpscr_ux != 0) {
424 raise_ue:
425 env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_UX;
426 goto raise_excp;
427 }
428 break;
429 case FPSCR_ZE:
430 if (fpscr_zx != 0) {
431 raise_ze:
432 env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_ZX;
433 goto raise_excp;
434 }
435 break;
436 case FPSCR_XE:
437 if (fpscr_xx != 0) {
438 raise_xe:
439 env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_XX;
440 goto raise_excp;
441 }
442 break;
443 case FPSCR_RN1:
444 case FPSCR_RN:
445 fpscr_set_rounding_mode(env);
446 break;
447 default:
448 break;
449 raise_excp:
450 /* Update the floating-point enabled exception summary */
451 env->fpscr |= 1 << FPSCR_FEX;
452 /* We have to update Rc1 before raising the exception */
453 cs->exception_index = POWERPC_EXCP_PROGRAM;
454 break;
455 }
456 }
457 }
458
459 void helper_store_fpscr(CPUPPCState *env, uint64_t arg, uint32_t mask)
460 {
461 CPUState *cs = CPU(ppc_env_get_cpu(env));
462 target_ulong prev, new;
463 int i;
464
465 prev = env->fpscr;
466 new = (target_ulong)arg;
467 new &= ~0x60000000LL;
468 new |= prev & 0x60000000LL;
469 for (i = 0; i < sizeof(target_ulong) * 2; i++) {
470 if (mask & (1 << i)) {
471 env->fpscr &= ~(0xFLL << (4 * i));
472 env->fpscr |= new & (0xFLL << (4 * i));
473 }
474 }
475 /* Update VX and FEX */
476 if (fpscr_ix != 0) {
477 env->fpscr |= 1 << FPSCR_VX;
478 } else {
479 env->fpscr &= ~(1 << FPSCR_VX);
480 }
481 if ((fpscr_ex & fpscr_eex) != 0) {
482 env->fpscr |= 1 << FPSCR_FEX;
483 cs->exception_index = POWERPC_EXCP_PROGRAM;
484 /* XXX: we should compute it properly */
485 env->error_code = POWERPC_EXCP_FP;
486 } else {
487 env->fpscr &= ~(1 << FPSCR_FEX);
488 }
489 fpscr_set_rounding_mode(env);
490 }
491
492 void store_fpscr(CPUPPCState *env, uint64_t arg, uint32_t mask)
493 {
494 helper_store_fpscr(env, arg, mask);
495 }
496
497 static void do_float_check_status(CPUPPCState *env, uintptr_t raddr)
498 {
499 CPUState *cs = CPU(ppc_env_get_cpu(env));
500 int status = get_float_exception_flags(&env->fp_status);
501
502 if (status & float_flag_divbyzero) {
503 float_zero_divide_excp(env, raddr);
504 } else if (status & float_flag_overflow) {
505 float_overflow_excp(env);
506 } else if (status & float_flag_underflow) {
507 float_underflow_excp(env);
508 } else if (status & float_flag_inexact) {
509 float_inexact_excp(env);
510 }
511
512 if (cs->exception_index == POWERPC_EXCP_PROGRAM &&
513 (env->error_code & POWERPC_EXCP_FP)) {
514 /* Differred floating-point exception after target FPR update */
515 if (msr_fe0 != 0 || msr_fe1 != 0) {
516 raise_exception_err_ra(env, cs->exception_index,
517 env->error_code, raddr);
518 }
519 }
520 }
521
522 static inline __attribute__((__always_inline__))
523 void float_check_status(CPUPPCState *env)
524 {
525 /* GETPC() works here because this is inline */
526 do_float_check_status(env, GETPC());
527 }
528
529 void helper_float_check_status(CPUPPCState *env)
530 {
531 do_float_check_status(env, GETPC());
532 }
533
534 void helper_reset_fpstatus(CPUPPCState *env)
535 {
536 set_float_exception_flags(0, &env->fp_status);
537 }
538
539 /* fadd - fadd. */
540 uint64_t helper_fadd(CPUPPCState *env, uint64_t arg1, uint64_t arg2)
541 {
542 CPU_DoubleU farg1, farg2;
543
544 farg1.ll = arg1;
545 farg2.ll = arg2;
546
547 if (unlikely(float64_is_infinity(farg1.d) && float64_is_infinity(farg2.d) &&
548 float64_is_neg(farg1.d) != float64_is_neg(farg2.d))) {
549 /* Magnitude subtraction of infinities */
550 farg1.ll = float_invalid_op_excp(env, POWERPC_EXCP_FP_VXISI, 1);
551 } else {
552 if (unlikely(float64_is_signaling_nan(farg1.d, &env->fp_status) ||
553 float64_is_signaling_nan(farg2.d, &env->fp_status))) {
554 /* sNaN addition */
555 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 1);
556 }
557 farg1.d = float64_add(farg1.d, farg2.d, &env->fp_status);
558 }
559
560 return farg1.ll;
561 }
562
563 /* fsub - fsub. */
564 uint64_t helper_fsub(CPUPPCState *env, uint64_t arg1, uint64_t arg2)
565 {
566 CPU_DoubleU farg1, farg2;
567
568 farg1.ll = arg1;
569 farg2.ll = arg2;
570
571 if (unlikely(float64_is_infinity(farg1.d) && float64_is_infinity(farg2.d) &&
572 float64_is_neg(farg1.d) == float64_is_neg(farg2.d))) {
573 /* Magnitude subtraction of infinities */
574 farg1.ll = float_invalid_op_excp(env, POWERPC_EXCP_FP_VXISI, 1);
575 } else {
576 if (unlikely(float64_is_signaling_nan(farg1.d, &env->fp_status) ||
577 float64_is_signaling_nan(farg2.d, &env->fp_status))) {
578 /* sNaN subtraction */
579 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 1);
580 }
581 farg1.d = float64_sub(farg1.d, farg2.d, &env->fp_status);
582 }
583
584 return farg1.ll;
585 }
586
587 /* fmul - fmul. */
588 uint64_t helper_fmul(CPUPPCState *env, uint64_t arg1, uint64_t arg2)
589 {
590 CPU_DoubleU farg1, farg2;
591
592 farg1.ll = arg1;
593 farg2.ll = arg2;
594
595 if (unlikely((float64_is_infinity(farg1.d) && float64_is_zero(farg2.d)) ||
596 (float64_is_zero(farg1.d) && float64_is_infinity(farg2.d)))) {
597 /* Multiplication of zero by infinity */
598 farg1.ll = float_invalid_op_excp(env, POWERPC_EXCP_FP_VXIMZ, 1);
599 } else {
600 if (unlikely(float64_is_signaling_nan(farg1.d, &env->fp_status) ||
601 float64_is_signaling_nan(farg2.d, &env->fp_status))) {
602 /* sNaN multiplication */
603 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 1);
604 }
605 farg1.d = float64_mul(farg1.d, farg2.d, &env->fp_status);
606 }
607
608 return farg1.ll;
609 }
610
611 /* fdiv - fdiv. */
612 uint64_t helper_fdiv(CPUPPCState *env, uint64_t arg1, uint64_t arg2)
613 {
614 CPU_DoubleU farg1, farg2;
615
616 farg1.ll = arg1;
617 farg2.ll = arg2;
618
619 if (unlikely(float64_is_infinity(farg1.d) &&
620 float64_is_infinity(farg2.d))) {
621 /* Division of infinity by infinity */
622 farg1.ll = float_invalid_op_excp(env, POWERPC_EXCP_FP_VXIDI, 1);
623 } else if (unlikely(float64_is_zero(farg1.d) && float64_is_zero(farg2.d))) {
624 /* Division of zero by zero */
625 farg1.ll = float_invalid_op_excp(env, POWERPC_EXCP_FP_VXZDZ, 1);
626 } else {
627 if (unlikely(float64_is_signaling_nan(farg1.d, &env->fp_status) ||
628 float64_is_signaling_nan(farg2.d, &env->fp_status))) {
629 /* sNaN division */
630 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 1);
631 }
632 farg1.d = float64_div(farg1.d, farg2.d, &env->fp_status);
633 }
634
635 return farg1.ll;
636 }
637
638
639 #define FPU_FCTI(op, cvt, nanval) \
640 uint64_t helper_##op(CPUPPCState *env, uint64_t arg) \
641 { \
642 CPU_DoubleU farg; \
643 \
644 farg.ll = arg; \
645 farg.ll = float64_to_##cvt(farg.d, &env->fp_status); \
646 \
647 if (unlikely(env->fp_status.float_exception_flags)) { \
648 if (float64_is_any_nan(arg)) { \
649 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXCVI, 1); \
650 if (float64_is_signaling_nan(arg, &env->fp_status)) { \
651 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 1); \
652 } \
653 farg.ll = nanval; \
654 } else if (env->fp_status.float_exception_flags & \
655 float_flag_invalid) { \
656 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXCVI, 1); \
657 } \
658 float_check_status(env); \
659 } \
660 return farg.ll; \
661 }
662
663 FPU_FCTI(fctiw, int32, 0x80000000U)
664 FPU_FCTI(fctiwz, int32_round_to_zero, 0x80000000U)
665 FPU_FCTI(fctiwu, uint32, 0x00000000U)
666 FPU_FCTI(fctiwuz, uint32_round_to_zero, 0x00000000U)
667 FPU_FCTI(fctid, int64, 0x8000000000000000ULL)
668 FPU_FCTI(fctidz, int64_round_to_zero, 0x8000000000000000ULL)
669 FPU_FCTI(fctidu, uint64, 0x0000000000000000ULL)
670 FPU_FCTI(fctiduz, uint64_round_to_zero, 0x0000000000000000ULL)
671
672 #define FPU_FCFI(op, cvtr, is_single) \
673 uint64_t helper_##op(CPUPPCState *env, uint64_t arg) \
674 { \
675 CPU_DoubleU farg; \
676 \
677 if (is_single) { \
678 float32 tmp = cvtr(arg, &env->fp_status); \
679 farg.d = float32_to_float64(tmp, &env->fp_status); \
680 } else { \
681 farg.d = cvtr(arg, &env->fp_status); \
682 } \
683 float_check_status(env); \
684 return farg.ll; \
685 }
686
687 FPU_FCFI(fcfid, int64_to_float64, 0)
688 FPU_FCFI(fcfids, int64_to_float32, 1)
689 FPU_FCFI(fcfidu, uint64_to_float64, 0)
690 FPU_FCFI(fcfidus, uint64_to_float32, 1)
691
692 static inline uint64_t do_fri(CPUPPCState *env, uint64_t arg,
693 int rounding_mode)
694 {
695 CPU_DoubleU farg;
696
697 farg.ll = arg;
698
699 if (unlikely(float64_is_signaling_nan(farg.d, &env->fp_status))) {
700 /* sNaN round */
701 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 1);
702 farg.ll = arg | 0x0008000000000000ULL;
703 } else {
704 int inexact = get_float_exception_flags(&env->fp_status) &
705 float_flag_inexact;
706 set_float_rounding_mode(rounding_mode, &env->fp_status);
707 farg.ll = float64_round_to_int(farg.d, &env->fp_status);
708 /* Restore rounding mode from FPSCR */
709 fpscr_set_rounding_mode(env);
710
711 /* fri* does not set FPSCR[XX] */
712 if (!inexact) {
713 env->fp_status.float_exception_flags &= ~float_flag_inexact;
714 }
715 }
716 float_check_status(env);
717 return farg.ll;
718 }
719
720 uint64_t helper_frin(CPUPPCState *env, uint64_t arg)
721 {
722 return do_fri(env, arg, float_round_ties_away);
723 }
724
725 uint64_t helper_friz(CPUPPCState *env, uint64_t arg)
726 {
727 return do_fri(env, arg, float_round_to_zero);
728 }
729
730 uint64_t helper_frip(CPUPPCState *env, uint64_t arg)
731 {
732 return do_fri(env, arg, float_round_up);
733 }
734
735 uint64_t helper_frim(CPUPPCState *env, uint64_t arg)
736 {
737 return do_fri(env, arg, float_round_down);
738 }
739
740 /* fmadd - fmadd. */
741 uint64_t helper_fmadd(CPUPPCState *env, uint64_t arg1, uint64_t arg2,
742 uint64_t arg3)
743 {
744 CPU_DoubleU farg1, farg2, farg3;
745
746 farg1.ll = arg1;
747 farg2.ll = arg2;
748 farg3.ll = arg3;
749
750 if (unlikely((float64_is_infinity(farg1.d) && float64_is_zero(farg2.d)) ||
751 (float64_is_zero(farg1.d) && float64_is_infinity(farg2.d)))) {
752 /* Multiplication of zero by infinity */
753 farg1.ll = float_invalid_op_excp(env, POWERPC_EXCP_FP_VXIMZ, 1);
754 } else {
755 if (unlikely(float64_is_signaling_nan(farg1.d, &env->fp_status) ||
756 float64_is_signaling_nan(farg2.d, &env->fp_status) ||
757 float64_is_signaling_nan(farg3.d, &env->fp_status))) {
758 /* sNaN operation */
759 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 1);
760 }
761 /* This is the way the PowerPC specification defines it */
762 float128 ft0_128, ft1_128;
763
764 ft0_128 = float64_to_float128(farg1.d, &env->fp_status);
765 ft1_128 = float64_to_float128(farg2.d, &env->fp_status);
766 ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status);
767 if (unlikely(float128_is_infinity(ft0_128) &&
768 float64_is_infinity(farg3.d) &&
769 float128_is_neg(ft0_128) != float64_is_neg(farg3.d))) {
770 /* Magnitude subtraction of infinities */
771 farg1.ll = float_invalid_op_excp(env, POWERPC_EXCP_FP_VXISI, 1);
772 } else {
773 ft1_128 = float64_to_float128(farg3.d, &env->fp_status);
774 ft0_128 = float128_add(ft0_128, ft1_128, &env->fp_status);
775 farg1.d = float128_to_float64(ft0_128, &env->fp_status);
776 }
777 }
778
779 return farg1.ll;
780 }
781
782 /* fmsub - fmsub. */
783 uint64_t helper_fmsub(CPUPPCState *env, uint64_t arg1, uint64_t arg2,
784 uint64_t arg3)
785 {
786 CPU_DoubleU farg1, farg2, farg3;
787
788 farg1.ll = arg1;
789 farg2.ll = arg2;
790 farg3.ll = arg3;
791
792 if (unlikely((float64_is_infinity(farg1.d) && float64_is_zero(farg2.d)) ||
793 (float64_is_zero(farg1.d) &&
794 float64_is_infinity(farg2.d)))) {
795 /* Multiplication of zero by infinity */
796 farg1.ll = float_invalid_op_excp(env, POWERPC_EXCP_FP_VXIMZ, 1);
797 } else {
798 if (unlikely(float64_is_signaling_nan(farg1.d, &env->fp_status) ||
799 float64_is_signaling_nan(farg2.d, &env->fp_status) ||
800 float64_is_signaling_nan(farg3.d, &env->fp_status))) {
801 /* sNaN operation */
802 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 1);
803 }
804 /* This is the way the PowerPC specification defines it */
805 float128 ft0_128, ft1_128;
806
807 ft0_128 = float64_to_float128(farg1.d, &env->fp_status);
808 ft1_128 = float64_to_float128(farg2.d, &env->fp_status);
809 ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status);
810 if (unlikely(float128_is_infinity(ft0_128) &&
811 float64_is_infinity(farg3.d) &&
812 float128_is_neg(ft0_128) == float64_is_neg(farg3.d))) {
813 /* Magnitude subtraction of infinities */
814 farg1.ll = float_invalid_op_excp(env, POWERPC_EXCP_FP_VXISI, 1);
815 } else {
816 ft1_128 = float64_to_float128(farg3.d, &env->fp_status);
817 ft0_128 = float128_sub(ft0_128, ft1_128, &env->fp_status);
818 farg1.d = float128_to_float64(ft0_128, &env->fp_status);
819 }
820 }
821 return farg1.ll;
822 }
823
824 /* fnmadd - fnmadd. */
825 uint64_t helper_fnmadd(CPUPPCState *env, uint64_t arg1, uint64_t arg2,
826 uint64_t arg3)
827 {
828 CPU_DoubleU farg1, farg2, farg3;
829
830 farg1.ll = arg1;
831 farg2.ll = arg2;
832 farg3.ll = arg3;
833
834 if (unlikely((float64_is_infinity(farg1.d) && float64_is_zero(farg2.d)) ||
835 (float64_is_zero(farg1.d) && float64_is_infinity(farg2.d)))) {
836 /* Multiplication of zero by infinity */
837 farg1.ll = float_invalid_op_excp(env, POWERPC_EXCP_FP_VXIMZ, 1);
838 } else {
839 if (unlikely(float64_is_signaling_nan(farg1.d, &env->fp_status) ||
840 float64_is_signaling_nan(farg2.d, &env->fp_status) ||
841 float64_is_signaling_nan(farg3.d, &env->fp_status))) {
842 /* sNaN operation */
843 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 1);
844 }
845 /* This is the way the PowerPC specification defines it */
846 float128 ft0_128, ft1_128;
847
848 ft0_128 = float64_to_float128(farg1.d, &env->fp_status);
849 ft1_128 = float64_to_float128(farg2.d, &env->fp_status);
850 ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status);
851 if (unlikely(float128_is_infinity(ft0_128) &&
852 float64_is_infinity(farg3.d) &&
853 float128_is_neg(ft0_128) != float64_is_neg(farg3.d))) {
854 /* Magnitude subtraction of infinities */
855 farg1.ll = float_invalid_op_excp(env, POWERPC_EXCP_FP_VXISI, 1);
856 } else {
857 ft1_128 = float64_to_float128(farg3.d, &env->fp_status);
858 ft0_128 = float128_add(ft0_128, ft1_128, &env->fp_status);
859 farg1.d = float128_to_float64(ft0_128, &env->fp_status);
860 }
861 if (likely(!float64_is_any_nan(farg1.d))) {
862 farg1.d = float64_chs(farg1.d);
863 }
864 }
865 return farg1.ll;
866 }
867
868 /* fnmsub - fnmsub. */
869 uint64_t helper_fnmsub(CPUPPCState *env, uint64_t arg1, uint64_t arg2,
870 uint64_t arg3)
871 {
872 CPU_DoubleU farg1, farg2, farg3;
873
874 farg1.ll = arg1;
875 farg2.ll = arg2;
876 farg3.ll = arg3;
877
878 if (unlikely((float64_is_infinity(farg1.d) && float64_is_zero(farg2.d)) ||
879 (float64_is_zero(farg1.d) &&
880 float64_is_infinity(farg2.d)))) {
881 /* Multiplication of zero by infinity */
882 farg1.ll = float_invalid_op_excp(env, POWERPC_EXCP_FP_VXIMZ, 1);
883 } else {
884 if (unlikely(float64_is_signaling_nan(farg1.d, &env->fp_status) ||
885 float64_is_signaling_nan(farg2.d, &env->fp_status) ||
886 float64_is_signaling_nan(farg3.d, &env->fp_status))) {
887 /* sNaN operation */
888 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 1);
889 }
890 /* This is the way the PowerPC specification defines it */
891 float128 ft0_128, ft1_128;
892
893 ft0_128 = float64_to_float128(farg1.d, &env->fp_status);
894 ft1_128 = float64_to_float128(farg2.d, &env->fp_status);
895 ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status);
896 if (unlikely(float128_is_infinity(ft0_128) &&
897 float64_is_infinity(farg3.d) &&
898 float128_is_neg(ft0_128) == float64_is_neg(farg3.d))) {
899 /* Magnitude subtraction of infinities */
900 farg1.ll = float_invalid_op_excp(env, POWERPC_EXCP_FP_VXISI, 1);
901 } else {
902 ft1_128 = float64_to_float128(farg3.d, &env->fp_status);
903 ft0_128 = float128_sub(ft0_128, ft1_128, &env->fp_status);
904 farg1.d = float128_to_float64(ft0_128, &env->fp_status);
905 }
906 if (likely(!float64_is_any_nan(farg1.d))) {
907 farg1.d = float64_chs(farg1.d);
908 }
909 }
910 return farg1.ll;
911 }
912
913 /* frsp - frsp. */
914 uint64_t helper_frsp(CPUPPCState *env, uint64_t arg)
915 {
916 CPU_DoubleU farg;
917 float32 f32;
918
919 farg.ll = arg;
920
921 if (unlikely(float64_is_signaling_nan(farg.d, &env->fp_status))) {
922 /* sNaN square root */
923 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 1);
924 }
925 f32 = float64_to_float32(farg.d, &env->fp_status);
926 farg.d = float32_to_float64(f32, &env->fp_status);
927
928 return farg.ll;
929 }
930
931 /* fsqrt - fsqrt. */
932 uint64_t helper_fsqrt(CPUPPCState *env, uint64_t arg)
933 {
934 CPU_DoubleU farg;
935
936 farg.ll = arg;
937
938 if (unlikely(float64_is_any_nan(farg.d))) {
939 if (unlikely(float64_is_signaling_nan(farg.d, &env->fp_status))) {
940 /* sNaN reciprocal square root */
941 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 1);
942 farg.ll = float64_snan_to_qnan(farg.ll);
943 }
944 } else if (unlikely(float64_is_neg(farg.d) && !float64_is_zero(farg.d))) {
945 /* Square root of a negative nonzero number */
946 farg.ll = float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSQRT, 1);
947 } else {
948 farg.d = float64_sqrt(farg.d, &env->fp_status);
949 }
950 return farg.ll;
951 }
952
953 /* fre - fre. */
954 uint64_t helper_fre(CPUPPCState *env, uint64_t arg)
955 {
956 CPU_DoubleU farg;
957
958 farg.ll = arg;
959
960 if (unlikely(float64_is_signaling_nan(farg.d, &env->fp_status))) {
961 /* sNaN reciprocal */
962 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 1);
963 }
964 farg.d = float64_div(float64_one, farg.d, &env->fp_status);
965 return farg.d;
966 }
967
968 /* fres - fres. */
969 uint64_t helper_fres(CPUPPCState *env, uint64_t arg)
970 {
971 CPU_DoubleU farg;
972 float32 f32;
973
974 farg.ll = arg;
975
976 if (unlikely(float64_is_signaling_nan(farg.d, &env->fp_status))) {
977 /* sNaN reciprocal */
978 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 1);
979 }
980 farg.d = float64_div(float64_one, farg.d, &env->fp_status);
981 f32 = float64_to_float32(farg.d, &env->fp_status);
982 farg.d = float32_to_float64(f32, &env->fp_status);
983
984 return farg.ll;
985 }
986
987 /* frsqrte - frsqrte. */
988 uint64_t helper_frsqrte(CPUPPCState *env, uint64_t arg)
989 {
990 CPU_DoubleU farg;
991
992 farg.ll = arg;
993
994 if (unlikely(float64_is_any_nan(farg.d))) {
995 if (unlikely(float64_is_signaling_nan(farg.d, &env->fp_status))) {
996 /* sNaN reciprocal square root */
997 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 1);
998 farg.ll = float64_snan_to_qnan(farg.ll);
999 }
1000 } else if (unlikely(float64_is_neg(farg.d) && !float64_is_zero(farg.d))) {
1001 /* Reciprocal square root of a negative nonzero number */
1002 farg.ll = float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSQRT, 1);
1003 } else {
1004 farg.d = float64_sqrt(farg.d, &env->fp_status);
1005 farg.d = float64_div(float64_one, farg.d, &env->fp_status);
1006 }
1007
1008 return farg.ll;
1009 }
1010
1011 /* fsel - fsel. */
1012 uint64_t helper_fsel(CPUPPCState *env, uint64_t arg1, uint64_t arg2,
1013 uint64_t arg3)
1014 {
1015 CPU_DoubleU farg1;
1016
1017 farg1.ll = arg1;
1018
1019 if ((!float64_is_neg(farg1.d) || float64_is_zero(farg1.d)) &&
1020 !float64_is_any_nan(farg1.d)) {
1021 return arg2;
1022 } else {
1023 return arg3;
1024 }
1025 }
1026
1027 uint32_t helper_ftdiv(uint64_t fra, uint64_t frb)
1028 {
1029 int fe_flag = 0;
1030 int fg_flag = 0;
1031
1032 if (unlikely(float64_is_infinity(fra) ||
1033 float64_is_infinity(frb) ||
1034 float64_is_zero(frb))) {
1035 fe_flag = 1;
1036 fg_flag = 1;
1037 } else {
1038 int e_a = ppc_float64_get_unbiased_exp(fra);
1039 int e_b = ppc_float64_get_unbiased_exp(frb);
1040
1041 if (unlikely(float64_is_any_nan(fra) ||
1042 float64_is_any_nan(frb))) {
1043 fe_flag = 1;
1044 } else if ((e_b <= -1022) || (e_b >= 1021)) {
1045 fe_flag = 1;
1046 } else if (!float64_is_zero(fra) &&
1047 (((e_a - e_b) >= 1023) ||
1048 ((e_a - e_b) <= -1021) ||
1049 (e_a <= -970))) {
1050 fe_flag = 1;
1051 }
1052
1053 if (unlikely(float64_is_zero_or_denormal(frb))) {
1054 /* XB is not zero because of the above check and */
1055 /* so must be denormalized. */
1056 fg_flag = 1;
1057 }
1058 }
1059
1060 return 0x8 | (fg_flag ? 4 : 0) | (fe_flag ? 2 : 0);
1061 }
1062
1063 uint32_t helper_ftsqrt(uint64_t frb)
1064 {
1065 int fe_flag = 0;
1066 int fg_flag = 0;
1067
1068 if (unlikely(float64_is_infinity(frb) || float64_is_zero(frb))) {
1069 fe_flag = 1;
1070 fg_flag = 1;
1071 } else {
1072 int e_b = ppc_float64_get_unbiased_exp(frb);
1073
1074 if (unlikely(float64_is_any_nan(frb))) {
1075 fe_flag = 1;
1076 } else if (unlikely(float64_is_zero(frb))) {
1077 fe_flag = 1;
1078 } else if (unlikely(float64_is_neg(frb))) {
1079 fe_flag = 1;
1080 } else if (!float64_is_zero(frb) && (e_b <= (-1022+52))) {
1081 fe_flag = 1;
1082 }
1083
1084 if (unlikely(float64_is_zero_or_denormal(frb))) {
1085 /* XB is not zero because of the above check and */
1086 /* therefore must be denormalized. */
1087 fg_flag = 1;
1088 }
1089 }
1090
1091 return 0x8 | (fg_flag ? 4 : 0) | (fe_flag ? 2 : 0);
1092 }
1093
1094 void helper_fcmpu(CPUPPCState *env, uint64_t arg1, uint64_t arg2,
1095 uint32_t crfD)
1096 {
1097 CPU_DoubleU farg1, farg2;
1098 uint32_t ret = 0;
1099
1100 farg1.ll = arg1;
1101 farg2.ll = arg2;
1102
1103 if (unlikely(float64_is_any_nan(farg1.d) ||
1104 float64_is_any_nan(farg2.d))) {
1105 ret = 0x01UL;
1106 } else if (float64_lt(farg1.d, farg2.d, &env->fp_status)) {
1107 ret = 0x08UL;
1108 } else if (!float64_le(farg1.d, farg2.d, &env->fp_status)) {
1109 ret = 0x04UL;
1110 } else {
1111 ret = 0x02UL;
1112 }
1113
1114 env->fpscr &= ~(0x0F << FPSCR_FPRF);
1115 env->fpscr |= ret << FPSCR_FPRF;
1116 env->crf[crfD] = ret;
1117 if (unlikely(ret == 0x01UL
1118 && (float64_is_signaling_nan(farg1.d, &env->fp_status) ||
1119 float64_is_signaling_nan(farg2.d, &env->fp_status)))) {
1120 /* sNaN comparison */
1121 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 1);
1122 }
1123 }
1124
1125 void helper_fcmpo(CPUPPCState *env, uint64_t arg1, uint64_t arg2,
1126 uint32_t crfD)
1127 {
1128 CPU_DoubleU farg1, farg2;
1129 uint32_t ret = 0;
1130
1131 farg1.ll = arg1;
1132 farg2.ll = arg2;
1133
1134 if (unlikely(float64_is_any_nan(farg1.d) ||
1135 float64_is_any_nan(farg2.d))) {
1136 ret = 0x01UL;
1137 } else if (float64_lt(farg1.d, farg2.d, &env->fp_status)) {
1138 ret = 0x08UL;
1139 } else if (!float64_le(farg1.d, farg2.d, &env->fp_status)) {
1140 ret = 0x04UL;
1141 } else {
1142 ret = 0x02UL;
1143 }
1144
1145 env->fpscr &= ~(0x0F << FPSCR_FPRF);
1146 env->fpscr |= ret << FPSCR_FPRF;
1147 env->crf[crfD] = ret;
1148 if (unlikely(ret == 0x01UL)) {
1149 if (float64_is_signaling_nan(farg1.d, &env->fp_status) ||
1150 float64_is_signaling_nan(farg2.d, &env->fp_status)) {
1151 /* sNaN comparison */
1152 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN |
1153 POWERPC_EXCP_FP_VXVC, 1);
1154 } else {
1155 /* qNaN comparison */
1156 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXVC, 1);
1157 }
1158 }
1159 }
1160
1161 /* Single-precision floating-point conversions */
1162 static inline uint32_t efscfsi(CPUPPCState *env, uint32_t val)
1163 {
1164 CPU_FloatU u;
1165
1166 u.f = int32_to_float32(val, &env->vec_status);
1167
1168 return u.l;
1169 }
1170
1171 static inline uint32_t efscfui(CPUPPCState *env, uint32_t val)
1172 {
1173 CPU_FloatU u;
1174
1175 u.f = uint32_to_float32(val, &env->vec_status);
1176
1177 return u.l;
1178 }
1179
1180 static inline int32_t efsctsi(CPUPPCState *env, uint32_t val)
1181 {
1182 CPU_FloatU u;
1183
1184 u.l = val;
1185 /* NaN are not treated the same way IEEE 754 does */
1186 if (unlikely(float32_is_quiet_nan(u.f, &env->vec_status))) {
1187 return 0;
1188 }
1189
1190 return float32_to_int32(u.f, &env->vec_status);
1191 }
1192
1193 static inline uint32_t efsctui(CPUPPCState *env, uint32_t val)
1194 {
1195 CPU_FloatU u;
1196
1197 u.l = val;
1198 /* NaN are not treated the same way IEEE 754 does */
1199 if (unlikely(float32_is_quiet_nan(u.f, &env->vec_status))) {
1200 return 0;
1201 }
1202
1203 return float32_to_uint32(u.f, &env->vec_status);
1204 }
1205
1206 static inline uint32_t efsctsiz(CPUPPCState *env, uint32_t val)
1207 {
1208 CPU_FloatU u;
1209
1210 u.l = val;
1211 /* NaN are not treated the same way IEEE 754 does */
1212 if (unlikely(float32_is_quiet_nan(u.f, &env->vec_status))) {
1213 return 0;
1214 }
1215
1216 return float32_to_int32_round_to_zero(u.f, &env->vec_status);
1217 }
1218
1219 static inline uint32_t efsctuiz(CPUPPCState *env, uint32_t val)
1220 {
1221 CPU_FloatU u;
1222
1223 u.l = val;
1224 /* NaN are not treated the same way IEEE 754 does */
1225 if (unlikely(float32_is_quiet_nan(u.f, &env->vec_status))) {
1226 return 0;
1227 }
1228
1229 return float32_to_uint32_round_to_zero(u.f, &env->vec_status);
1230 }
1231
1232 static inline uint32_t efscfsf(CPUPPCState *env, uint32_t val)
1233 {
1234 CPU_FloatU u;
1235 float32 tmp;
1236
1237 u.f = int32_to_float32(val, &env->vec_status);
1238 tmp = int64_to_float32(1ULL << 32, &env->vec_status);
1239 u.f = float32_div(u.f, tmp, &env->vec_status);
1240
1241 return u.l;
1242 }
1243
1244 static inline uint32_t efscfuf(CPUPPCState *env, uint32_t val)
1245 {
1246 CPU_FloatU u;
1247 float32 tmp;
1248
1249 u.f = uint32_to_float32(val, &env->vec_status);
1250 tmp = uint64_to_float32(1ULL << 32, &env->vec_status);
1251 u.f = float32_div(u.f, tmp, &env->vec_status);
1252
1253 return u.l;
1254 }
1255
1256 static inline uint32_t efsctsf(CPUPPCState *env, uint32_t val)
1257 {
1258 CPU_FloatU u;
1259 float32 tmp;
1260
1261 u.l = val;
1262 /* NaN are not treated the same way IEEE 754 does */
1263 if (unlikely(float32_is_quiet_nan(u.f, &env->vec_status))) {
1264 return 0;
1265 }
1266 tmp = uint64_to_float32(1ULL << 32, &env->vec_status);
1267 u.f = float32_mul(u.f, tmp, &env->vec_status);
1268
1269 return float32_to_int32(u.f, &env->vec_status);
1270 }
1271
1272 static inline uint32_t efsctuf(CPUPPCState *env, uint32_t val)
1273 {
1274 CPU_FloatU u;
1275 float32 tmp;
1276
1277 u.l = val;
1278 /* NaN are not treated the same way IEEE 754 does */
1279 if (unlikely(float32_is_quiet_nan(u.f, &env->vec_status))) {
1280 return 0;
1281 }
1282 tmp = uint64_to_float32(1ULL << 32, &env->vec_status);
1283 u.f = float32_mul(u.f, tmp, &env->vec_status);
1284
1285 return float32_to_uint32(u.f, &env->vec_status);
1286 }
1287
1288 #define HELPER_SPE_SINGLE_CONV(name) \
1289 uint32_t helper_e##name(CPUPPCState *env, uint32_t val) \
1290 { \
1291 return e##name(env, val); \
1292 }
1293 /* efscfsi */
1294 HELPER_SPE_SINGLE_CONV(fscfsi);
1295 /* efscfui */
1296 HELPER_SPE_SINGLE_CONV(fscfui);
1297 /* efscfuf */
1298 HELPER_SPE_SINGLE_CONV(fscfuf);
1299 /* efscfsf */
1300 HELPER_SPE_SINGLE_CONV(fscfsf);
1301 /* efsctsi */
1302 HELPER_SPE_SINGLE_CONV(fsctsi);
1303 /* efsctui */
1304 HELPER_SPE_SINGLE_CONV(fsctui);
1305 /* efsctsiz */
1306 HELPER_SPE_SINGLE_CONV(fsctsiz);
1307 /* efsctuiz */
1308 HELPER_SPE_SINGLE_CONV(fsctuiz);
1309 /* efsctsf */
1310 HELPER_SPE_SINGLE_CONV(fsctsf);
1311 /* efsctuf */
1312 HELPER_SPE_SINGLE_CONV(fsctuf);
1313
1314 #define HELPER_SPE_VECTOR_CONV(name) \
1315 uint64_t helper_ev##name(CPUPPCState *env, uint64_t val) \
1316 { \
1317 return ((uint64_t)e##name(env, val >> 32) << 32) | \
1318 (uint64_t)e##name(env, val); \
1319 }
1320 /* evfscfsi */
1321 HELPER_SPE_VECTOR_CONV(fscfsi);
1322 /* evfscfui */
1323 HELPER_SPE_VECTOR_CONV(fscfui);
1324 /* evfscfuf */
1325 HELPER_SPE_VECTOR_CONV(fscfuf);
1326 /* evfscfsf */
1327 HELPER_SPE_VECTOR_CONV(fscfsf);
1328 /* evfsctsi */
1329 HELPER_SPE_VECTOR_CONV(fsctsi);
1330 /* evfsctui */
1331 HELPER_SPE_VECTOR_CONV(fsctui);
1332 /* evfsctsiz */
1333 HELPER_SPE_VECTOR_CONV(fsctsiz);
1334 /* evfsctuiz */
1335 HELPER_SPE_VECTOR_CONV(fsctuiz);
1336 /* evfsctsf */
1337 HELPER_SPE_VECTOR_CONV(fsctsf);
1338 /* evfsctuf */
1339 HELPER_SPE_VECTOR_CONV(fsctuf);
1340
1341 /* Single-precision floating-point arithmetic */
1342 static inline uint32_t efsadd(CPUPPCState *env, uint32_t op1, uint32_t op2)
1343 {
1344 CPU_FloatU u1, u2;
1345
1346 u1.l = op1;
1347 u2.l = op2;
1348 u1.f = float32_add(u1.f, u2.f, &env->vec_status);
1349 return u1.l;
1350 }
1351
1352 static inline uint32_t efssub(CPUPPCState *env, uint32_t op1, uint32_t op2)
1353 {
1354 CPU_FloatU u1, u2;
1355
1356 u1.l = op1;
1357 u2.l = op2;
1358 u1.f = float32_sub(u1.f, u2.f, &env->vec_status);
1359 return u1.l;
1360 }
1361
1362 static inline uint32_t efsmul(CPUPPCState *env, uint32_t op1, uint32_t op2)
1363 {
1364 CPU_FloatU u1, u2;
1365
1366 u1.l = op1;
1367 u2.l = op2;
1368 u1.f = float32_mul(u1.f, u2.f, &env->vec_status);
1369 return u1.l;
1370 }
1371
1372 static inline uint32_t efsdiv(CPUPPCState *env, uint32_t op1, uint32_t op2)
1373 {
1374 CPU_FloatU u1, u2;
1375
1376 u1.l = op1;
1377 u2.l = op2;
1378 u1.f = float32_div(u1.f, u2.f, &env->vec_status);
1379 return u1.l;
1380 }
1381
1382 #define HELPER_SPE_SINGLE_ARITH(name) \
1383 uint32_t helper_e##name(CPUPPCState *env, uint32_t op1, uint32_t op2) \
1384 { \
1385 return e##name(env, op1, op2); \
1386 }
1387 /* efsadd */
1388 HELPER_SPE_SINGLE_ARITH(fsadd);
1389 /* efssub */
1390 HELPER_SPE_SINGLE_ARITH(fssub);
1391 /* efsmul */
1392 HELPER_SPE_SINGLE_ARITH(fsmul);
1393 /* efsdiv */
1394 HELPER_SPE_SINGLE_ARITH(fsdiv);
1395
1396 #define HELPER_SPE_VECTOR_ARITH(name) \
1397 uint64_t helper_ev##name(CPUPPCState *env, uint64_t op1, uint64_t op2) \
1398 { \
1399 return ((uint64_t)e##name(env, op1 >> 32, op2 >> 32) << 32) | \
1400 (uint64_t)e##name(env, op1, op2); \
1401 }
1402 /* evfsadd */
1403 HELPER_SPE_VECTOR_ARITH(fsadd);
1404 /* evfssub */
1405 HELPER_SPE_VECTOR_ARITH(fssub);
1406 /* evfsmul */
1407 HELPER_SPE_VECTOR_ARITH(fsmul);
1408 /* evfsdiv */
1409 HELPER_SPE_VECTOR_ARITH(fsdiv);
1410
1411 /* Single-precision floating-point comparisons */
1412 static inline uint32_t efscmplt(CPUPPCState *env, uint32_t op1, uint32_t op2)
1413 {
1414 CPU_FloatU u1, u2;
1415
1416 u1.l = op1;
1417 u2.l = op2;
1418 return float32_lt(u1.f, u2.f, &env->vec_status) ? 4 : 0;
1419 }
1420
1421 static inline uint32_t efscmpgt(CPUPPCState *env, uint32_t op1, uint32_t op2)
1422 {
1423 CPU_FloatU u1, u2;
1424
1425 u1.l = op1;
1426 u2.l = op2;
1427 return float32_le(u1.f, u2.f, &env->vec_status) ? 0 : 4;
1428 }
1429
1430 static inline uint32_t efscmpeq(CPUPPCState *env, uint32_t op1, uint32_t op2)
1431 {
1432 CPU_FloatU u1, u2;
1433
1434 u1.l = op1;
1435 u2.l = op2;
1436 return float32_eq(u1.f, u2.f, &env->vec_status) ? 4 : 0;
1437 }
1438
1439 static inline uint32_t efststlt(CPUPPCState *env, uint32_t op1, uint32_t op2)
1440 {
1441 /* XXX: TODO: ignore special values (NaN, infinites, ...) */
1442 return efscmplt(env, op1, op2);
1443 }
1444
1445 static inline uint32_t efststgt(CPUPPCState *env, uint32_t op1, uint32_t op2)
1446 {
1447 /* XXX: TODO: ignore special values (NaN, infinites, ...) */
1448 return efscmpgt(env, op1, op2);
1449 }
1450
1451 static inline uint32_t efststeq(CPUPPCState *env, uint32_t op1, uint32_t op2)
1452 {
1453 /* XXX: TODO: ignore special values (NaN, infinites, ...) */
1454 return efscmpeq(env, op1, op2);
1455 }
1456
1457 #define HELPER_SINGLE_SPE_CMP(name) \
1458 uint32_t helper_e##name(CPUPPCState *env, uint32_t op1, uint32_t op2) \
1459 { \
1460 return e##name(env, op1, op2); \
1461 }
1462 /* efststlt */
1463 HELPER_SINGLE_SPE_CMP(fststlt);
1464 /* efststgt */
1465 HELPER_SINGLE_SPE_CMP(fststgt);
1466 /* efststeq */
1467 HELPER_SINGLE_SPE_CMP(fststeq);
1468 /* efscmplt */
1469 HELPER_SINGLE_SPE_CMP(fscmplt);
1470 /* efscmpgt */
1471 HELPER_SINGLE_SPE_CMP(fscmpgt);
1472 /* efscmpeq */
1473 HELPER_SINGLE_SPE_CMP(fscmpeq);
1474
1475 static inline uint32_t evcmp_merge(int t0, int t1)
1476 {
1477 return (t0 << 3) | (t1 << 2) | ((t0 | t1) << 1) | (t0 & t1);
1478 }
1479
1480 #define HELPER_VECTOR_SPE_CMP(name) \
1481 uint32_t helper_ev##name(CPUPPCState *env, uint64_t op1, uint64_t op2) \
1482 { \
1483 return evcmp_merge(e##name(env, op1 >> 32, op2 >> 32), \
1484 e##name(env, op1, op2)); \
1485 }
1486 /* evfststlt */
1487 HELPER_VECTOR_SPE_CMP(fststlt);
1488 /* evfststgt */
1489 HELPER_VECTOR_SPE_CMP(fststgt);
1490 /* evfststeq */
1491 HELPER_VECTOR_SPE_CMP(fststeq);
1492 /* evfscmplt */
1493 HELPER_VECTOR_SPE_CMP(fscmplt);
1494 /* evfscmpgt */
1495 HELPER_VECTOR_SPE_CMP(fscmpgt);
1496 /* evfscmpeq */
1497 HELPER_VECTOR_SPE_CMP(fscmpeq);
1498
1499 /* Double-precision floating-point conversion */
1500 uint64_t helper_efdcfsi(CPUPPCState *env, uint32_t val)
1501 {
1502 CPU_DoubleU u;
1503
1504 u.d = int32_to_float64(val, &env->vec_status);
1505
1506 return u.ll;
1507 }
1508
1509 uint64_t helper_efdcfsid(CPUPPCState *env, uint64_t val)
1510 {
1511 CPU_DoubleU u;
1512
1513 u.d = int64_to_float64(val, &env->vec_status);
1514
1515 return u.ll;
1516 }
1517
1518 uint64_t helper_efdcfui(CPUPPCState *env, uint32_t val)
1519 {
1520 CPU_DoubleU u;
1521
1522 u.d = uint32_to_float64(val, &env->vec_status);
1523
1524 return u.ll;
1525 }
1526
1527 uint64_t helper_efdcfuid(CPUPPCState *env, uint64_t val)
1528 {
1529 CPU_DoubleU u;
1530
1531 u.d = uint64_to_float64(val, &env->vec_status);
1532
1533 return u.ll;
1534 }
1535
1536 uint32_t helper_efdctsi(CPUPPCState *env, uint64_t val)
1537 {
1538 CPU_DoubleU u;
1539
1540 u.ll = val;
1541 /* NaN are not treated the same way IEEE 754 does */
1542 if (unlikely(float64_is_any_nan(u.d))) {
1543 return 0;
1544 }
1545
1546 return float64_to_int32(u.d, &env->vec_status);
1547 }
1548
1549 uint32_t helper_efdctui(CPUPPCState *env, uint64_t val)
1550 {
1551 CPU_DoubleU u;
1552
1553 u.ll = val;
1554 /* NaN are not treated the same way IEEE 754 does */
1555 if (unlikely(float64_is_any_nan(u.d))) {
1556 return 0;
1557 }
1558
1559 return float64_to_uint32(u.d, &env->vec_status);
1560 }
1561
1562 uint32_t helper_efdctsiz(CPUPPCState *env, uint64_t val)
1563 {
1564 CPU_DoubleU u;
1565
1566 u.ll = val;
1567 /* NaN are not treated the same way IEEE 754 does */
1568 if (unlikely(float64_is_any_nan(u.d))) {
1569 return 0;
1570 }
1571
1572 return float64_to_int32_round_to_zero(u.d, &env->vec_status);
1573 }
1574
1575 uint64_t helper_efdctsidz(CPUPPCState *env, uint64_t val)
1576 {
1577 CPU_DoubleU u;
1578
1579 u.ll = val;
1580 /* NaN are not treated the same way IEEE 754 does */
1581 if (unlikely(float64_is_any_nan(u.d))) {
1582 return 0;
1583 }
1584
1585 return float64_to_int64_round_to_zero(u.d, &env->vec_status);
1586 }
1587
1588 uint32_t helper_efdctuiz(CPUPPCState *env, uint64_t val)
1589 {
1590 CPU_DoubleU u;
1591
1592 u.ll = val;
1593 /* NaN are not treated the same way IEEE 754 does */
1594 if (unlikely(float64_is_any_nan(u.d))) {
1595 return 0;
1596 }
1597
1598 return float64_to_uint32_round_to_zero(u.d, &env->vec_status);
1599 }
1600
1601 uint64_t helper_efdctuidz(CPUPPCState *env, uint64_t val)
1602 {
1603 CPU_DoubleU u;
1604
1605 u.ll = val;
1606 /* NaN are not treated the same way IEEE 754 does */
1607 if (unlikely(float64_is_any_nan(u.d))) {
1608 return 0;
1609 }
1610
1611 return float64_to_uint64_round_to_zero(u.d, &env->vec_status);
1612 }
1613
1614 uint64_t helper_efdcfsf(CPUPPCState *env, uint32_t val)
1615 {
1616 CPU_DoubleU u;
1617 float64 tmp;
1618
1619 u.d = int32_to_float64(val, &env->vec_status);
1620 tmp = int64_to_float64(1ULL << 32, &env->vec_status);
1621 u.d = float64_div(u.d, tmp, &env->vec_status);
1622
1623 return u.ll;
1624 }
1625
1626 uint64_t helper_efdcfuf(CPUPPCState *env, uint32_t val)
1627 {
1628 CPU_DoubleU u;
1629 float64 tmp;
1630
1631 u.d = uint32_to_float64(val, &env->vec_status);
1632 tmp = int64_to_float64(1ULL << 32, &env->vec_status);
1633 u.d = float64_div(u.d, tmp, &env->vec_status);
1634
1635 return u.ll;
1636 }
1637
1638 uint32_t helper_efdctsf(CPUPPCState *env, uint64_t val)
1639 {
1640 CPU_DoubleU u;
1641 float64 tmp;
1642
1643 u.ll = val;
1644 /* NaN are not treated the same way IEEE 754 does */
1645 if (unlikely(float64_is_any_nan(u.d))) {
1646 return 0;
1647 }
1648 tmp = uint64_to_float64(1ULL << 32, &env->vec_status);
1649 u.d = float64_mul(u.d, tmp, &env->vec_status);
1650
1651 return float64_to_int32(u.d, &env->vec_status);
1652 }
1653
1654 uint32_t helper_efdctuf(CPUPPCState *env, uint64_t val)
1655 {
1656 CPU_DoubleU u;
1657 float64 tmp;
1658
1659 u.ll = val;
1660 /* NaN are not treated the same way IEEE 754 does */
1661 if (unlikely(float64_is_any_nan(u.d))) {
1662 return 0;
1663 }
1664 tmp = uint64_to_float64(1ULL << 32, &env->vec_status);
1665 u.d = float64_mul(u.d, tmp, &env->vec_status);
1666
1667 return float64_to_uint32(u.d, &env->vec_status);
1668 }
1669
1670 uint32_t helper_efscfd(CPUPPCState *env, uint64_t val)
1671 {
1672 CPU_DoubleU u1;
1673 CPU_FloatU u2;
1674
1675 u1.ll = val;
1676 u2.f = float64_to_float32(u1.d, &env->vec_status);
1677
1678 return u2.l;
1679 }
1680
1681 uint64_t helper_efdcfs(CPUPPCState *env, uint32_t val)
1682 {
1683 CPU_DoubleU u2;
1684 CPU_FloatU u1;
1685
1686 u1.l = val;
1687 u2.d = float32_to_float64(u1.f, &env->vec_status);
1688
1689 return u2.ll;
1690 }
1691
1692 /* Double precision fixed-point arithmetic */
1693 uint64_t helper_efdadd(CPUPPCState *env, uint64_t op1, uint64_t op2)
1694 {
1695 CPU_DoubleU u1, u2;
1696
1697 u1.ll = op1;
1698 u2.ll = op2;
1699 u1.d = float64_add(u1.d, u2.d, &env->vec_status);
1700 return u1.ll;
1701 }
1702
1703 uint64_t helper_efdsub(CPUPPCState *env, uint64_t op1, uint64_t op2)
1704 {
1705 CPU_DoubleU u1, u2;
1706
1707 u1.ll = op1;
1708 u2.ll = op2;
1709 u1.d = float64_sub(u1.d, u2.d, &env->vec_status);
1710 return u1.ll;
1711 }
1712
1713 uint64_t helper_efdmul(CPUPPCState *env, uint64_t op1, uint64_t op2)
1714 {
1715 CPU_DoubleU u1, u2;
1716
1717 u1.ll = op1;
1718 u2.ll = op2;
1719 u1.d = float64_mul(u1.d, u2.d, &env->vec_status);
1720 return u1.ll;
1721 }
1722
1723 uint64_t helper_efddiv(CPUPPCState *env, uint64_t op1, uint64_t op2)
1724 {
1725 CPU_DoubleU u1, u2;
1726
1727 u1.ll = op1;
1728 u2.ll = op2;
1729 u1.d = float64_div(u1.d, u2.d, &env->vec_status);
1730 return u1.ll;
1731 }
1732
1733 /* Double precision floating point helpers */
1734 uint32_t helper_efdtstlt(CPUPPCState *env, uint64_t op1, uint64_t op2)
1735 {
1736 CPU_DoubleU u1, u2;
1737
1738 u1.ll = op1;
1739 u2.ll = op2;
1740 return float64_lt(u1.d, u2.d, &env->vec_status) ? 4 : 0;
1741 }
1742
1743 uint32_t helper_efdtstgt(CPUPPCState *env, uint64_t op1, uint64_t op2)
1744 {
1745 CPU_DoubleU u1, u2;
1746
1747 u1.ll = op1;
1748 u2.ll = op2;
1749 return float64_le(u1.d, u2.d, &env->vec_status) ? 0 : 4;
1750 }
1751
1752 uint32_t helper_efdtsteq(CPUPPCState *env, uint64_t op1, uint64_t op2)
1753 {
1754 CPU_DoubleU u1, u2;
1755
1756 u1.ll = op1;
1757 u2.ll = op2;
1758 return float64_eq_quiet(u1.d, u2.d, &env->vec_status) ? 4 : 0;
1759 }
1760
1761 uint32_t helper_efdcmplt(CPUPPCState *env, uint64_t op1, uint64_t op2)
1762 {
1763 /* XXX: TODO: test special values (NaN, infinites, ...) */
1764 return helper_efdtstlt(env, op1, op2);
1765 }
1766
1767 uint32_t helper_efdcmpgt(CPUPPCState *env, uint64_t op1, uint64_t op2)
1768 {
1769 /* XXX: TODO: test special values (NaN, infinites, ...) */
1770 return helper_efdtstgt(env, op1, op2);
1771 }
1772
1773 uint32_t helper_efdcmpeq(CPUPPCState *env, uint64_t op1, uint64_t op2)
1774 {
1775 /* XXX: TODO: test special values (NaN, infinites, ...) */
1776 return helper_efdtsteq(env, op1, op2);
1777 }
1778
1779 #define DECODE_SPLIT(opcode, shift1, nb1, shift2, nb2) \
1780 (((((opcode) >> (shift1)) & ((1 << (nb1)) - 1)) << nb2) | \
1781 (((opcode) >> (shift2)) & ((1 << (nb2)) - 1)))
1782
1783 #define xT(opcode) DECODE_SPLIT(opcode, 0, 1, 21, 5)
1784 #define xA(opcode) DECODE_SPLIT(opcode, 2, 1, 16, 5)
1785 #define xB(opcode) DECODE_SPLIT(opcode, 1, 1, 11, 5)
1786 #define xC(opcode) DECODE_SPLIT(opcode, 3, 1, 6, 5)
1787 #define BF(opcode) (((opcode) >> (31-8)) & 7)
1788
1789 typedef union _ppc_vsr_t {
1790 uint64_t u64[2];
1791 uint32_t u32[4];
1792 float32 f32[4];
1793 float64 f64[2];
1794 } ppc_vsr_t;
1795
1796 #if defined(HOST_WORDS_BIGENDIAN)
1797 #define VsrW(i) u32[i]
1798 #define VsrD(i) u64[i]
1799 #else
1800 #define VsrW(i) u32[3-(i)]
1801 #define VsrD(i) u64[1-(i)]
1802 #endif
1803
1804 static void getVSR(int n, ppc_vsr_t *vsr, CPUPPCState *env)
1805 {
1806 if (n < 32) {
1807 vsr->VsrD(0) = env->fpr[n];
1808 vsr->VsrD(1) = env->vsr[n];
1809 } else {
1810 vsr->u64[0] = env->avr[n-32].u64[0];
1811 vsr->u64[1] = env->avr[n-32].u64[1];
1812 }
1813 }
1814
1815 static void putVSR(int n, ppc_vsr_t *vsr, CPUPPCState *env)
1816 {
1817 if (n < 32) {
1818 env->fpr[n] = vsr->VsrD(0);
1819 env->vsr[n] = vsr->VsrD(1);
1820 } else {
1821 env->avr[n-32].u64[0] = vsr->u64[0];
1822 env->avr[n-32].u64[1] = vsr->u64[1];
1823 }
1824 }
1825
1826 #define float64_to_float64(x, env) x
1827
1828
1829 /* VSX_ADD_SUB - VSX floating point add/subract
1830 * name - instruction mnemonic
1831 * op - operation (add or sub)
1832 * nels - number of elements (1, 2 or 4)
1833 * tp - type (float32 or float64)
1834 * fld - vsr_t field (VsrD(*) or VsrW(*))
1835 * sfprf - set FPRF
1836 */
1837 #define VSX_ADD_SUB(name, op, nels, tp, fld, sfprf, r2sp) \
1838 void helper_##name(CPUPPCState *env, uint32_t opcode) \
1839 { \
1840 ppc_vsr_t xt, xa, xb; \
1841 int i; \
1842 \
1843 getVSR(xA(opcode), &xa, env); \
1844 getVSR(xB(opcode), &xb, env); \
1845 getVSR(xT(opcode), &xt, env); \
1846 helper_reset_fpstatus(env); \
1847 \
1848 for (i = 0; i < nels; i++) { \
1849 float_status tstat = env->fp_status; \
1850 set_float_exception_flags(0, &tstat); \
1851 xt.fld = tp##_##op(xa.fld, xb.fld, &tstat); \
1852 env->fp_status.float_exception_flags |= tstat.float_exception_flags; \
1853 \
1854 if (unlikely(tstat.float_exception_flags & float_flag_invalid)) { \
1855 if (tp##_is_infinity(xa.fld) && tp##_is_infinity(xb.fld)) { \
1856 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXISI, sfprf); \
1857 } else if (tp##_is_signaling_nan(xa.fld, &tstat) || \
1858 tp##_is_signaling_nan(xb.fld, &tstat)) { \
1859 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, sfprf); \
1860 } \
1861 } \
1862 \
1863 if (r2sp) { \
1864 xt.fld = helper_frsp(env, xt.fld); \
1865 } \
1866 \
1867 if (sfprf) { \
1868 helper_compute_fprf(env, xt.fld); \
1869 } \
1870 } \
1871 putVSR(xT(opcode), &xt, env); \
1872 float_check_status(env); \
1873 }
1874
1875 VSX_ADD_SUB(xsadddp, add, 1, float64, VsrD(0), 1, 0)
1876 VSX_ADD_SUB(xsaddsp, add, 1, float64, VsrD(0), 1, 1)
1877 VSX_ADD_SUB(xvadddp, add, 2, float64, VsrD(i), 0, 0)
1878 VSX_ADD_SUB(xvaddsp, add, 4, float32, VsrW(i), 0, 0)
1879 VSX_ADD_SUB(xssubdp, sub, 1, float64, VsrD(0), 1, 0)
1880 VSX_ADD_SUB(xssubsp, sub, 1, float64, VsrD(0), 1, 1)
1881 VSX_ADD_SUB(xvsubdp, sub, 2, float64, VsrD(i), 0, 0)
1882 VSX_ADD_SUB(xvsubsp, sub, 4, float32, VsrW(i), 0, 0)
1883
1884 /* VSX_MUL - VSX floating point multiply
1885 * op - instruction mnemonic
1886 * nels - number of elements (1, 2 or 4)
1887 * tp - type (float32 or float64)
1888 * fld - vsr_t field (VsrD(*) or VsrW(*))
1889 * sfprf - set FPRF
1890 */
1891 #define VSX_MUL(op, nels, tp, fld, sfprf, r2sp) \
1892 void helper_##op(CPUPPCState *env, uint32_t opcode) \
1893 { \
1894 ppc_vsr_t xt, xa, xb; \
1895 int i; \
1896 \
1897 getVSR(xA(opcode), &xa, env); \
1898 getVSR(xB(opcode), &xb, env); \
1899 getVSR(xT(opcode), &xt, env); \
1900 helper_reset_fpstatus(env); \
1901 \
1902 for (i = 0; i < nels; i++) { \
1903 float_status tstat = env->fp_status; \
1904 set_float_exception_flags(0, &tstat); \
1905 xt.fld = tp##_mul(xa.fld, xb.fld, &tstat); \
1906 env->fp_status.float_exception_flags |= tstat.float_exception_flags; \
1907 \
1908 if (unlikely(tstat.float_exception_flags & float_flag_invalid)) { \
1909 if ((tp##_is_infinity(xa.fld) && tp##_is_zero(xb.fld)) || \
1910 (tp##_is_infinity(xb.fld) && tp##_is_zero(xa.fld))) { \
1911 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXIMZ, sfprf); \
1912 } else if (tp##_is_signaling_nan(xa.fld, &tstat) || \
1913 tp##_is_signaling_nan(xb.fld, &tstat)) { \
1914 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, sfprf); \
1915 } \
1916 } \
1917 \
1918 if (r2sp) { \
1919 xt.fld = helper_frsp(env, xt.fld); \
1920 } \
1921 \
1922 if (sfprf) { \
1923 helper_compute_fprf(env, xt.fld); \
1924 } \
1925 } \
1926 \
1927 putVSR(xT(opcode), &xt, env); \
1928 float_check_status(env); \
1929 }
1930
1931 VSX_MUL(xsmuldp, 1, float64, VsrD(0), 1, 0)
1932 VSX_MUL(xsmulsp, 1, float64, VsrD(0), 1, 1)
1933 VSX_MUL(xvmuldp, 2, float64, VsrD(i), 0, 0)
1934 VSX_MUL(xvmulsp, 4, float32, VsrW(i), 0, 0)
1935
1936 /* VSX_DIV - VSX floating point divide
1937 * op - instruction mnemonic
1938 * nels - number of elements (1, 2 or 4)
1939 * tp - type (float32 or float64)
1940 * fld - vsr_t field (VsrD(*) or VsrW(*))
1941 * sfprf - set FPRF
1942 */
1943 #define VSX_DIV(op, nels, tp, fld, sfprf, r2sp) \
1944 void helper_##op(CPUPPCState *env, uint32_t opcode) \
1945 { \
1946 ppc_vsr_t xt, xa, xb; \
1947 int i; \
1948 \
1949 getVSR(xA(opcode), &xa, env); \
1950 getVSR(xB(opcode), &xb, env); \
1951 getVSR(xT(opcode), &xt, env); \
1952 helper_reset_fpstatus(env); \
1953 \
1954 for (i = 0; i < nels; i++) { \
1955 float_status tstat = env->fp_status; \
1956 set_float_exception_flags(0, &tstat); \
1957 xt.fld = tp##_div(xa.fld, xb.fld, &tstat); \
1958 env->fp_status.float_exception_flags |= tstat.float_exception_flags; \
1959 \
1960 if (unlikely(tstat.float_exception_flags & float_flag_invalid)) { \
1961 if (tp##_is_infinity(xa.fld) && tp##_is_infinity(xb.fld)) { \
1962 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXIDI, sfprf); \
1963 } else if (tp##_is_zero(xa.fld) && \
1964 tp##_is_zero(xb.fld)) { \
1965 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXZDZ, sfprf); \
1966 } else if (tp##_is_signaling_nan(xa.fld, &tstat) || \
1967 tp##_is_signaling_nan(xb.fld, &tstat)) { \
1968 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, sfprf); \
1969 } \
1970 } \
1971 \
1972 if (r2sp) { \
1973 xt.fld = helper_frsp(env, xt.fld); \
1974 } \
1975 \
1976 if (sfprf) { \
1977 helper_compute_fprf(env, xt.fld); \
1978 } \
1979 } \
1980 \
1981 putVSR(xT(opcode), &xt, env); \
1982 float_check_status(env); \
1983 }
1984
1985 VSX_DIV(xsdivdp, 1, float64, VsrD(0), 1, 0)
1986 VSX_DIV(xsdivsp, 1, float64, VsrD(0), 1, 1)
1987 VSX_DIV(xvdivdp, 2, float64, VsrD(i), 0, 0)
1988 VSX_DIV(xvdivsp, 4, float32, VsrW(i), 0, 0)
1989
1990 /* VSX_RE - VSX floating point reciprocal estimate
1991 * op - instruction mnemonic
1992 * nels - number of elements (1, 2 or 4)
1993 * tp - type (float32 or float64)
1994 * fld - vsr_t field (VsrD(*) or VsrW(*))
1995 * sfprf - set FPRF
1996 */
1997 #define VSX_RE(op, nels, tp, fld, sfprf, r2sp) \
1998 void helper_##op(CPUPPCState *env, uint32_t opcode) \
1999 { \
2000 ppc_vsr_t xt, xb; \
2001 int i; \
2002 \
2003 getVSR(xB(opcode), &xb, env); \
2004 getVSR(xT(opcode), &xt, env); \
2005 helper_reset_fpstatus(env); \
2006 \
2007 for (i = 0; i < nels; i++) { \
2008 if (unlikely(tp##_is_signaling_nan(xb.fld, &env->fp_status))) { \
2009 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, sfprf); \
2010 } \
2011 xt.fld = tp##_div(tp##_one, xb.fld, &env->fp_status); \
2012 \
2013 if (r2sp) { \
2014 xt.fld = helper_frsp(env, xt.fld); \
2015 } \
2016 \
2017 if (sfprf) { \
2018 helper_compute_fprf(env, xt.fld); \
2019 } \
2020 } \
2021 \
2022 putVSR(xT(opcode), &xt, env); \
2023 float_check_status(env); \
2024 }
2025
2026 VSX_RE(xsredp, 1, float64, VsrD(0), 1, 0)
2027 VSX_RE(xsresp, 1, float64, VsrD(0), 1, 1)
2028 VSX_RE(xvredp, 2, float64, VsrD(i), 0, 0)
2029 VSX_RE(xvresp, 4, float32, VsrW(i), 0, 0)
2030
2031 /* VSX_SQRT - VSX floating point square root
2032 * op - instruction mnemonic
2033 * nels - number of elements (1, 2 or 4)
2034 * tp - type (float32 or float64)
2035 * fld - vsr_t field (VsrD(*) or VsrW(*))
2036 * sfprf - set FPRF
2037 */
2038 #define VSX_SQRT(op, nels, tp, fld, sfprf, r2sp) \
2039 void helper_##op(CPUPPCState *env, uint32_t opcode) \
2040 { \
2041 ppc_vsr_t xt, xb; \
2042 int i; \
2043 \
2044 getVSR(xB(opcode), &xb, env); \
2045 getVSR(xT(opcode), &xt, env); \
2046 helper_reset_fpstatus(env); \
2047 \
2048 for (i = 0; i < nels; i++) { \
2049 float_status tstat = env->fp_status; \
2050 set_float_exception_flags(0, &tstat); \
2051 xt.fld = tp##_sqrt(xb.fld, &tstat); \
2052 env->fp_status.float_exception_flags |= tstat.float_exception_flags; \
2053 \
2054 if (unlikely(tstat.float_exception_flags & float_flag_invalid)) { \
2055 if (tp##_is_neg(xb.fld) && !tp##_is_zero(xb.fld)) { \
2056 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSQRT, sfprf); \
2057 } else if (tp##_is_signaling_nan(xb.fld, &tstat)) { \
2058 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, sfprf); \
2059 } \
2060 } \
2061 \
2062 if (r2sp) { \
2063 xt.fld = helper_frsp(env, xt.fld); \
2064 } \
2065 \
2066 if (sfprf) { \
2067 helper_compute_fprf(env, xt.fld); \
2068 } \
2069 } \
2070 \
2071 putVSR(xT(opcode), &xt, env); \
2072 float_check_status(env); \
2073 }
2074
2075 VSX_SQRT(xssqrtdp, 1, float64, VsrD(0), 1, 0)
2076 VSX_SQRT(xssqrtsp, 1, float64, VsrD(0), 1, 1)
2077 VSX_SQRT(xvsqrtdp, 2, float64, VsrD(i), 0, 0)
2078 VSX_SQRT(xvsqrtsp, 4, float32, VsrW(i), 0, 0)
2079
2080 /* VSX_RSQRTE - VSX floating point reciprocal square root estimate
2081 * op - instruction mnemonic
2082 * nels - number of elements (1, 2 or 4)
2083 * tp - type (float32 or float64)
2084 * fld - vsr_t field (VsrD(*) or VsrW(*))
2085 * sfprf - set FPRF
2086 */
2087 #define VSX_RSQRTE(op, nels, tp, fld, sfprf, r2sp) \
2088 void helper_##op(CPUPPCState *env, uint32_t opcode) \
2089 { \
2090 ppc_vsr_t xt, xb; \
2091 int i; \
2092 \
2093 getVSR(xB(opcode), &xb, env); \
2094 getVSR(xT(opcode), &xt, env); \
2095 helper_reset_fpstatus(env); \
2096 \
2097 for (i = 0; i < nels; i++) { \
2098 float_status tstat = env->fp_status; \
2099 set_float_exception_flags(0, &tstat); \
2100 xt.fld = tp##_sqrt(xb.fld, &tstat); \
2101 xt.fld = tp##_div(tp##_one, xt.fld, &tstat); \
2102 env->fp_status.float_exception_flags |= tstat.float_exception_flags; \
2103 \
2104 if (unlikely(tstat.float_exception_flags & float_flag_invalid)) { \
2105 if (tp##_is_neg(xb.fld) && !tp##_is_zero(xb.fld)) { \
2106 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSQRT, sfprf); \
2107 } else if (tp##_is_signaling_nan(xb.fld, &tstat)) { \
2108 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, sfprf); \
2109 } \
2110 } \
2111 \
2112 if (r2sp) { \
2113 xt.fld = helper_frsp(env, xt.fld); \
2114 } \
2115 \
2116 if (sfprf) { \
2117 helper_compute_fprf(env, xt.fld); \
2118 } \
2119 } \
2120 \
2121 putVSR(xT(opcode), &xt, env); \
2122 float_check_status(env); \
2123 }
2124
2125 VSX_RSQRTE(xsrsqrtedp, 1, float64, VsrD(0), 1, 0)
2126 VSX_RSQRTE(xsrsqrtesp, 1, float64, VsrD(0), 1, 1)
2127 VSX_RSQRTE(xvrsqrtedp, 2, float64, VsrD(i), 0, 0)
2128 VSX_RSQRTE(xvrsqrtesp, 4, float32, VsrW(i), 0, 0)
2129
2130 /* VSX_TDIV - VSX floating point test for divide
2131 * op - instruction mnemonic
2132 * nels - number of elements (1, 2 or 4)
2133 * tp - type (float32 or float64)
2134 * fld - vsr_t field (VsrD(*) or VsrW(*))
2135 * emin - minimum unbiased exponent
2136 * emax - maximum unbiased exponent
2137 * nbits - number of fraction bits
2138 */
2139 #define VSX_TDIV(op, nels, tp, fld, emin, emax, nbits) \
2140 void helper_##op(CPUPPCState *env, uint32_t opcode) \
2141 { \
2142 ppc_vsr_t xa, xb; \
2143 int i; \
2144 int fe_flag = 0; \
2145 int fg_flag = 0; \
2146 \
2147 getVSR(xA(opcode), &xa, env); \
2148 getVSR(xB(opcode), &xb, env); \
2149 \
2150 for (i = 0; i < nels; i++) { \
2151 if (unlikely(tp##_is_infinity(xa.fld) || \
2152 tp##_is_infinity(xb.fld) || \
2153 tp##_is_zero(xb.fld))) { \
2154 fe_flag = 1; \
2155 fg_flag = 1; \
2156 } else { \
2157 int e_a = ppc_##tp##_get_unbiased_exp(xa.fld); \
2158 int e_b = ppc_##tp##_get_unbiased_exp(xb.fld); \
2159 \
2160 if (unlikely(tp##_is_any_nan(xa.fld) || \
2161 tp##_is_any_nan(xb.fld))) { \
2162 fe_flag = 1; \
2163 } else if ((e_b <= emin) || (e_b >= (emax-2))) { \
2164 fe_flag = 1; \
2165 } else if (!tp##_is_zero(xa.fld) && \
2166 (((e_a - e_b) >= emax) || \
2167 ((e_a - e_b) <= (emin+1)) || \
2168 (e_a <= (emin+nbits)))) { \
2169 fe_flag = 1; \
2170 } \
2171 \
2172 if (unlikely(tp##_is_zero_or_denormal(xb.fld))) { \
2173 /* XB is not zero because of the above check and */ \
2174 /* so must be denormalized. */ \
2175 fg_flag = 1; \
2176 } \
2177 } \
2178 } \
2179 \
2180 env->crf[BF(opcode)] = 0x8 | (fg_flag ? 4 : 0) | (fe_flag ? 2 : 0); \
2181 }
2182
2183 VSX_TDIV(xstdivdp, 1, float64, VsrD(0), -1022, 1023, 52)
2184 VSX_TDIV(xvtdivdp, 2, float64, VsrD(i), -1022, 1023, 52)
2185 VSX_TDIV(xvtdivsp, 4, float32, VsrW(i), -126, 127, 23)
2186
2187 /* VSX_TSQRT - VSX floating point test for square root
2188 * op - instruction mnemonic
2189 * nels - number of elements (1, 2 or 4)
2190 * tp - type (float32 or float64)
2191 * fld - vsr_t field (VsrD(*) or VsrW(*))
2192 * emin - minimum unbiased exponent
2193 * emax - maximum unbiased exponent
2194 * nbits - number of fraction bits
2195 */
2196 #define VSX_TSQRT(op, nels, tp, fld, emin, nbits) \
2197 void helper_##op(CPUPPCState *env, uint32_t opcode) \
2198 { \
2199 ppc_vsr_t xa, xb; \
2200 int i; \
2201 int fe_flag = 0; \
2202 int fg_flag = 0; \
2203 \
2204 getVSR(xA(opcode), &xa, env); \
2205 getVSR(xB(opcode), &xb, env); \
2206 \
2207 for (i = 0; i < nels; i++) { \
2208 if (unlikely(tp##_is_infinity(xb.fld) || \
2209 tp##_is_zero(xb.fld))) { \
2210 fe_flag = 1; \
2211 fg_flag = 1; \
2212 } else { \
2213 int e_b = ppc_##tp##_get_unbiased_exp(xb.fld); \
2214 \
2215 if (unlikely(tp##_is_any_nan(xb.fld))) { \
2216 fe_flag = 1; \
2217 } else if (unlikely(tp##_is_zero(xb.fld))) { \
2218 fe_flag = 1; \
2219 } else if (unlikely(tp##_is_neg(xb.fld))) { \
2220 fe_flag = 1; \
2221 } else if (!tp##_is_zero(xb.fld) && \
2222 (e_b <= (emin+nbits))) { \
2223 fe_flag = 1; \
2224 } \
2225 \
2226 if (unlikely(tp##_is_zero_or_denormal(xb.fld))) { \
2227 /* XB is not zero because of the above check and */ \
2228 /* therefore must be denormalized. */ \
2229 fg_flag = 1; \
2230 } \
2231 } \
2232 } \
2233 \
2234 env->crf[BF(opcode)] = 0x8 | (fg_flag ? 4 : 0) | (fe_flag ? 2 : 0); \
2235 }
2236
2237 VSX_TSQRT(xstsqrtdp, 1, float64, VsrD(0), -1022, 52)
2238 VSX_TSQRT(xvtsqrtdp, 2, float64, VsrD(i), -1022, 52)
2239 VSX_TSQRT(xvtsqrtsp, 4, float32, VsrW(i), -126, 23)
2240
2241 /* VSX_MADD - VSX floating point muliply/add variations
2242 * op - instruction mnemonic
2243 * nels - number of elements (1, 2 or 4)
2244 * tp - type (float32 or float64)
2245 * fld - vsr_t field (VsrD(*) or VsrW(*))
2246 * maddflgs - flags for the float*muladd routine that control the
2247 * various forms (madd, msub, nmadd, nmsub)
2248 * afrm - A form (1=A, 0=M)
2249 * sfprf - set FPRF
2250 */
2251 #define VSX_MADD(op, nels, tp, fld, maddflgs, afrm, sfprf, r2sp) \
2252 void helper_##op(CPUPPCState *env, uint32_t opcode) \
2253 { \
2254 ppc_vsr_t xt_in, xa, xb, xt_out; \
2255 ppc_vsr_t *b, *c; \
2256 int i; \
2257 \
2258 if (afrm) { /* AxB + T */ \
2259 b = &xb; \
2260 c = &xt_in; \
2261 } else { /* AxT + B */ \
2262 b = &xt_in; \
2263 c = &xb; \
2264 } \
2265 \
2266 getVSR(xA(opcode), &xa, env); \
2267 getVSR(xB(opcode), &xb, env); \
2268 getVSR(xT(opcode), &xt_in, env); \
2269 \
2270 xt_out = xt_in; \
2271 \
2272 helper_reset_fpstatus(env); \
2273 \
2274 for (i = 0; i < nels; i++) { \
2275 float_status tstat = env->fp_status; \
2276 set_float_exception_flags(0, &tstat); \
2277 if (r2sp && (tstat.float_rounding_mode == float_round_nearest_even)) {\
2278 /* Avoid double rounding errors by rounding the intermediate */ \
2279 /* result to odd. */ \
2280 set_float_rounding_mode(float_round_to_zero, &tstat); \
2281 xt_out.fld = tp##_muladd(xa.fld, b->fld, c->fld, \
2282 maddflgs, &tstat); \
2283 xt_out.fld |= (get_float_exception_flags(&tstat) & \
2284 float_flag_inexact) != 0; \
2285 } else { \
2286 xt_out.fld = tp##_muladd(xa.fld, b->fld, c->fld, \
2287 maddflgs, &tstat); \
2288 } \
2289 env->fp_status.float_exception_flags |= tstat.float_exception_flags; \
2290 \
2291 if (unlikely(tstat.float_exception_flags & float_flag_invalid)) { \
2292 if (tp##_is_signaling_nan(xa.fld, &tstat) || \
2293 tp##_is_signaling_nan(b->fld, &tstat) || \
2294 tp##_is_signaling_nan(c->fld, &tstat)) { \
2295 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, sfprf); \
2296 tstat.float_exception_flags &= ~float_flag_invalid; \
2297 } \
2298 if ((tp##_is_infinity(xa.fld) && tp##_is_zero(b->fld)) || \
2299 (tp##_is_zero(xa.fld) && tp##_is_infinity(b->fld))) { \
2300 xt_out.fld = float64_to_##tp(float_invalid_op_excp(env, \
2301 POWERPC_EXCP_FP_VXIMZ, sfprf), &env->fp_status); \
2302 tstat.float_exception_flags &= ~float_flag_invalid; \
2303 } \
2304 if ((tstat.float_exception_flags & float_flag_invalid) && \
2305 ((tp##_is_infinity(xa.fld) || \
2306 tp##_is_infinity(b->fld)) && \
2307 tp##_is_infinity(c->fld))) { \
2308 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXISI, sfprf); \
2309 } \
2310 } \
2311 \
2312 if (r2sp) { \
2313 xt_out.fld = helper_frsp(env, xt_out.fld); \
2314 } \
2315 \
2316 if (sfprf) { \
2317 helper_compute_fprf(env, xt_out.fld); \
2318 } \
2319 } \
2320 putVSR(xT(opcode), &xt_out, env); \
2321 float_check_status(env); \
2322 }
2323
2324 #define MADD_FLGS 0
2325 #define MSUB_FLGS float_muladd_negate_c
2326 #define NMADD_FLGS float_muladd_negate_result
2327 #define NMSUB_FLGS (float_muladd_negate_c | float_muladd_negate_result)
2328
2329 VSX_MADD(xsmaddadp, 1, float64, VsrD(0), MADD_FLGS, 1, 1, 0)
2330 VSX_MADD(xsmaddmdp, 1, float64, VsrD(0), MADD_FLGS, 0, 1, 0)
2331 VSX_MADD(xsmsubadp, 1, float64, VsrD(0), MSUB_FLGS, 1, 1, 0)
2332 VSX_MADD(xsmsubmdp, 1, float64, VsrD(0), MSUB_FLGS, 0, 1, 0)
2333 VSX_MADD(xsnmaddadp, 1, float64, VsrD(0), NMADD_FLGS, 1, 1, 0)
2334 VSX_MADD(xsnmaddmdp, 1, float64, VsrD(0), NMADD_FLGS, 0, 1, 0)
2335 VSX_MADD(xsnmsubadp, 1, float64, VsrD(0), NMSUB_FLGS, 1, 1, 0)
2336 VSX_MADD(xsnmsubmdp, 1, float64, VsrD(0), NMSUB_FLGS, 0, 1, 0)
2337
2338 VSX_MADD(xsmaddasp, 1, float64, VsrD(0), MADD_FLGS, 1, 1, 1)
2339 VSX_MADD(xsmaddmsp, 1, float64, VsrD(0), MADD_FLGS, 0, 1, 1)
2340 VSX_MADD(xsmsubasp, 1, float64, VsrD(0), MSUB_FLGS, 1, 1, 1)
2341 VSX_MADD(xsmsubmsp, 1, float64, VsrD(0), MSUB_FLGS, 0, 1, 1)
2342 VSX_MADD(xsnmaddasp, 1, float64, VsrD(0), NMADD_FLGS, 1, 1, 1)
2343 VSX_MADD(xsnmaddmsp, 1, float64, VsrD(0), NMADD_FLGS, 0, 1, 1)
2344 VSX_MADD(xsnmsubasp, 1, float64, VsrD(0), NMSUB_FLGS, 1, 1, 1)
2345 VSX_MADD(xsnmsubmsp, 1, float64, VsrD(0), NMSUB_FLGS, 0, 1, 1)
2346
2347 VSX_MADD(xvmaddadp, 2, float64, VsrD(i), MADD_FLGS, 1, 0, 0)
2348 VSX_MADD(xvmaddmdp, 2, float64, VsrD(i), MADD_FLGS, 0, 0, 0)
2349 VSX_MADD(xvmsubadp, 2, float64, VsrD(i), MSUB_FLGS, 1, 0, 0)
2350 VSX_MADD(xvmsubmdp, 2, float64, VsrD(i), MSUB_FLGS, 0, 0, 0)
2351 VSX_MADD(xvnmaddadp, 2, float64, VsrD(i), NMADD_FLGS, 1, 0, 0)
2352 VSX_MADD(xvnmaddmdp, 2, float64, VsrD(i), NMADD_FLGS, 0, 0, 0)
2353 VSX_MADD(xvnmsubadp, 2, float64, VsrD(i), NMSUB_FLGS, 1, 0, 0)
2354 VSX_MADD(xvnmsubmdp, 2, float64, VsrD(i), NMSUB_FLGS, 0, 0, 0)
2355
2356 VSX_MADD(xvmaddasp, 4, float32, VsrW(i), MADD_FLGS, 1, 0, 0)
2357 VSX_MADD(xvmaddmsp, 4, float32, VsrW(i), MADD_FLGS, 0, 0, 0)
2358 VSX_MADD(xvmsubasp, 4, float32, VsrW(i), MSUB_FLGS, 1, 0, 0)
2359 VSX_MADD(xvmsubmsp, 4, float32, VsrW(i), MSUB_FLGS, 0, 0, 0)
2360 VSX_MADD(xvnmaddasp, 4, float32, VsrW(i), NMADD_FLGS, 1, 0, 0)
2361 VSX_MADD(xvnmaddmsp, 4, float32, VsrW(i), NMADD_FLGS, 0, 0, 0)
2362 VSX_MADD(xvnmsubasp, 4, float32, VsrW(i), NMSUB_FLGS, 1, 0, 0)
2363 VSX_MADD(xvnmsubmsp, 4, float32, VsrW(i), NMSUB_FLGS, 0, 0, 0)
2364
2365 /* VSX_SCALAR_CMP_DP - VSX scalar floating point compare double precision
2366 * op - instruction mnemonic
2367 * cmp - comparison operation
2368 * exp - expected result of comparison
2369 * svxvc - set VXVC bit
2370 */
2371 #define VSX_SCALAR_CMP_DP(op, cmp, exp, svxvc) \
2372 void helper_##op(CPUPPCState *env, uint32_t opcode) \
2373 { \
2374 ppc_vsr_t xt, xa, xb; \
2375 bool vxsnan_flag = false, vxvc_flag = false, vex_flag = false; \
2376 \
2377 getVSR(xA(opcode), &xa, env); \
2378 getVSR(xB(opcode), &xb, env); \
2379 getVSR(xT(opcode), &xt, env); \
2380 \
2381 if (float64_is_signaling_nan(xa.VsrD(0), &env->fp_status) || \
2382 float64_is_signaling_nan(xb.VsrD(0), &env->fp_status)) { \
2383 vxsnan_flag = true; \
2384 if (fpscr_ve == 0 && svxvc) { \
2385 vxvc_flag = true; \
2386 } \
2387 } else if (svxvc) { \
2388 vxvc_flag = float64_is_quiet_nan(xa.VsrD(0), &env->fp_status) || \
2389 float64_is_quiet_nan(xb.VsrD(0), &env->fp_status); \
2390 } \
2391 if (vxsnan_flag) { \
2392 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 0); \
2393 } \
2394 if (vxvc_flag) { \
2395 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXVC, 0); \
2396 } \
2397 vex_flag = fpscr_ve && (vxvc_flag || vxsnan_flag); \
2398 \
2399 if (!vex_flag) { \
2400 if (float64_##cmp(xb.VsrD(0), xa.VsrD(0), &env->fp_status) == exp) { \
2401 xt.VsrD(0) = -1; \
2402 xt.VsrD(1) = 0; \
2403 } else { \
2404 xt.VsrD(0) = 0; \
2405 xt.VsrD(1) = 0; \
2406 } \
2407 } \
2408 putVSR(xT(opcode), &xt, env); \
2409 helper_float_check_status(env); \
2410 }
2411
2412 VSX_SCALAR_CMP_DP(xscmpeqdp, eq, 1, 0)
2413 VSX_SCALAR_CMP_DP(xscmpgedp, le, 1, 1)
2414 VSX_SCALAR_CMP_DP(xscmpgtdp, lt, 1, 1)
2415 VSX_SCALAR_CMP_DP(xscmpnedp, eq, 0, 0)
2416
2417 #define VSX_SCALAR_CMP(op, ordered) \
2418 void helper_##op(CPUPPCState *env, uint32_t opcode) \
2419 { \
2420 ppc_vsr_t xa, xb; \
2421 uint32_t cc = 0; \
2422 \
2423 getVSR(xA(opcode), &xa, env); \
2424 getVSR(xB(opcode), &xb, env); \
2425 \
2426 if (unlikely(float64_is_any_nan(xa.VsrD(0)) || \
2427 float64_is_any_nan(xb.VsrD(0)))) { \
2428 if (float64_is_signaling_nan(xa.VsrD(0), &env->fp_status) || \
2429 float64_is_signaling_nan(xb.VsrD(0), &env->fp_status)) { \
2430 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 0); \
2431 } \
2432 if (ordered) { \
2433 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXVC, 0); \
2434 } \
2435 cc = 1; \
2436 } else { \
2437 if (float64_lt(xa.VsrD(0), xb.VsrD(0), &env->fp_status)) { \
2438 cc = 8; \
2439 } else if (!float64_le(xa.VsrD(0), xb.VsrD(0), \
2440 &env->fp_status)) { \
2441 cc = 4; \
2442 } else { \
2443 cc = 2; \
2444 } \
2445 } \
2446 \
2447 env->fpscr &= ~(0x0F << FPSCR_FPRF); \
2448 env->fpscr |= cc << FPSCR_FPRF; \
2449 env->crf[BF(opcode)] = cc; \
2450 \
2451 float_check_status(env); \
2452 }
2453
2454 VSX_SCALAR_CMP(xscmpodp, 1)
2455 VSX_SCALAR_CMP(xscmpudp, 0)
2456
2457 /* VSX_MAX_MIN - VSX floating point maximum/minimum
2458 * name - instruction mnemonic
2459 * op - operation (max or min)
2460 * nels - number of elements (1, 2 or 4)
2461 * tp - type (float32 or float64)
2462 * fld - vsr_t field (VsrD(*) or VsrW(*))
2463 */
2464 #define VSX_MAX_MIN(name, op, nels, tp, fld) \
2465 void helper_##name(CPUPPCState *env, uint32_t opcode) \
2466 { \
2467 ppc_vsr_t xt, xa, xb; \
2468 int i; \
2469 \
2470 getVSR(xA(opcode), &xa, env); \
2471 getVSR(xB(opcode), &xb, env); \
2472 getVSR(xT(opcode), &xt, env); \
2473 \
2474 for (i = 0; i < nels; i++) { \
2475 xt.fld = tp##_##op(xa.fld, xb.fld, &env->fp_status); \
2476 if (unlikely(tp##_is_signaling_nan(xa.fld, &env->fp_status) || \
2477 tp##_is_signaling_nan(xb.fld, &env->fp_status))) { \
2478 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 0); \
2479 } \
2480 } \
2481 \
2482 putVSR(xT(opcode), &xt, env); \
2483 float_check_status(env); \
2484 }
2485
2486 VSX_MAX_MIN(xsmaxdp, maxnum, 1, float64, VsrD(0))
2487 VSX_MAX_MIN(xvmaxdp, maxnum, 2, float64, VsrD(i))
2488 VSX_MAX_MIN(xvmaxsp, maxnum, 4, float32, VsrW(i))
2489 VSX_MAX_MIN(xsmindp, minnum, 1, float64, VsrD(0))
2490 VSX_MAX_MIN(xvmindp, minnum, 2, float64, VsrD(i))
2491 VSX_MAX_MIN(xvminsp, minnum, 4, float32, VsrW(i))
2492
2493 /* VSX_CMP - VSX floating point compare
2494 * op - instruction mnemonic
2495 * nels - number of elements (1, 2 or 4)
2496 * tp - type (float32 or float64)
2497 * fld - vsr_t field (VsrD(*) or VsrW(*))
2498 * cmp - comparison operation
2499 * svxvc - set VXVC bit
2500 * exp - expected result of comparison
2501 */
2502 #define VSX_CMP(op, nels, tp, fld, cmp, svxvc, exp) \
2503 void helper_##op(CPUPPCState *env, uint32_t opcode) \
2504 { \
2505 ppc_vsr_t xt, xa, xb; \
2506 int i; \
2507 int all_true = 1; \
2508 int all_false = 1; \
2509 \
2510 getVSR(xA(opcode), &xa, env); \
2511 getVSR(xB(opcode), &xb, env); \
2512 getVSR(xT(opcode), &xt, env); \
2513 \
2514 for (i = 0; i < nels; i++) { \
2515 if (unlikely(tp##_is_any_nan(xa.fld) || \
2516 tp##_is_any_nan(xb.fld))) { \
2517 if (tp##_is_signaling_nan(xa.fld, &env->fp_status) || \
2518 tp##_is_signaling_nan(xb.fld, &env->fp_status)) { \
2519 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 0); \
2520 } \
2521 if (svxvc) { \
2522 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXVC, 0); \
2523 } \
2524 xt.fld = 0; \
2525 all_true = 0; \
2526 } else { \
2527 if (tp##_##cmp(xb.fld, xa.fld, &env->fp_status) == exp) { \
2528 xt.fld = -1; \
2529 all_false = 0; \
2530 } else { \
2531 xt.fld = 0; \
2532 all_true = 0; \
2533 } \
2534 } \
2535 } \
2536 \
2537 putVSR(xT(opcode), &xt, env); \
2538 if ((opcode >> (31-21)) & 1) { \
2539 env->crf[6] = (all_true ? 0x8 : 0) | (all_false ? 0x2 : 0); \
2540 } \
2541 float_check_status(env); \
2542 }
2543
2544 VSX_CMP(xvcmpeqdp, 2, float64, VsrD(i), eq, 0, 1)
2545 VSX_CMP(xvcmpgedp, 2, float64, VsrD(i), le, 1, 1)
2546 VSX_CMP(xvcmpgtdp, 2, float64, VsrD(i), lt, 1, 1)
2547 VSX_CMP(xvcmpnedp, 2, float64, VsrD(i), eq, 0, 0)
2548 VSX_CMP(xvcmpeqsp, 4, float32, VsrW(i), eq, 0, 1)
2549 VSX_CMP(xvcmpgesp, 4, float32, VsrW(i), le, 1, 1)
2550 VSX_CMP(xvcmpgtsp, 4, float32, VsrW(i), lt, 1, 1)
2551 VSX_CMP(xvcmpnesp, 4, float32, VsrW(i), eq, 0, 0)
2552
2553 /* VSX_CVT_FP_TO_FP - VSX floating point/floating point conversion
2554 * op - instruction mnemonic
2555 * nels - number of elements (1, 2 or 4)
2556 * stp - source type (float32 or float64)
2557 * ttp - target type (float32 or float64)
2558 * sfld - source vsr_t field
2559 * tfld - target vsr_t field (f32 or f64)
2560 * sfprf - set FPRF
2561 */
2562 #define VSX_CVT_FP_TO_FP(op, nels, stp, ttp, sfld, tfld, sfprf) \
2563 void helper_##op(CPUPPCState *env, uint32_t opcode) \
2564 { \
2565 ppc_vsr_t xt, xb; \
2566 int i; \
2567 \
2568 getVSR(xB(opcode), &xb, env); \
2569 getVSR(xT(opcode), &xt, env); \
2570 \
2571 for (i = 0; i < nels; i++) { \
2572 xt.tfld = stp##_to_##ttp(xb.sfld, &env->fp_status); \
2573 if (unlikely(stp##_is_signaling_nan(xb.sfld, \
2574 &env->fp_status))) { \
2575 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 0); \
2576 xt.tfld = ttp##_snan_to_qnan(xt.tfld); \
2577 } \
2578 if (sfprf) { \
2579 helper_compute_fprf(env, ttp##_to_float64(xt.tfld, \
2580 &env->fp_status)); \
2581 } \
2582 } \
2583 \
2584 putVSR(xT(opcode), &xt, env); \
2585 float_check_status(env); \
2586 }
2587
2588 VSX_CVT_FP_TO_FP(xscvdpsp, 1, float64, float32, VsrD(0), VsrW(0), 1)
2589 VSX_CVT_FP_TO_FP(xscvspdp, 1, float32, float64, VsrW(0), VsrD(0), 1)
2590 VSX_CVT_FP_TO_FP(xvcvdpsp, 2, float64, float32, VsrD(i), VsrW(2*i), 0)
2591 VSX_CVT_FP_TO_FP(xvcvspdp, 2, float32, float64, VsrW(2*i), VsrD(i), 0)
2592
2593 uint64_t helper_xscvdpspn(CPUPPCState *env, uint64_t xb)
2594 {
2595 float_status tstat = env->fp_status;
2596 set_float_exception_flags(0, &tstat);
2597
2598 return (uint64_t)float64_to_float32(xb, &tstat) << 32;
2599 }
2600
2601 uint64_t helper_xscvspdpn(CPUPPCState *env, uint64_t xb)
2602 {
2603 float_status tstat = env->fp_status;
2604 set_float_exception_flags(0, &tstat);
2605
2606 return float32_to_float64(xb >> 32, &tstat);
2607 }
2608
2609 /* VSX_CVT_FP_TO_INT - VSX floating point to integer conversion
2610 * op - instruction mnemonic
2611 * nels - number of elements (1, 2 or 4)
2612 * stp - source type (float32 or float64)
2613 * ttp - target type (int32, uint32, int64 or uint64)
2614 * sfld - source vsr_t field
2615 * tfld - target vsr_t field
2616 * rnan - resulting NaN
2617 */
2618 #define VSX_CVT_FP_TO_INT(op, nels, stp, ttp, sfld, tfld, rnan) \
2619 void helper_##op(CPUPPCState *env, uint32_t opcode) \
2620 { \
2621 ppc_vsr_t xt, xb; \
2622 int i; \
2623 \
2624 getVSR(xB(opcode), &xb, env); \
2625 getVSR(xT(opcode), &xt, env); \
2626 \
2627 for (i = 0; i < nels; i++) { \
2628 if (unlikely(stp##_is_any_nan(xb.sfld))) { \
2629 if (stp##_is_signaling_nan(xb.sfld, &env->fp_status)) { \
2630 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 0); \
2631 } \
2632 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXCVI, 0); \
2633 xt.tfld = rnan; \
2634 } else { \
2635 xt.tfld = stp##_to_##ttp##_round_to_zero(xb.sfld, \
2636 &env->fp_status); \
2637 if (env->fp_status.float_exception_flags & float_flag_invalid) { \
2638 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXCVI, 0); \
2639 } \
2640 } \
2641 } \
2642 \
2643 putVSR(xT(opcode), &xt, env); \
2644 float_check_status(env); \
2645 }
2646
2647 VSX_CVT_FP_TO_INT(xscvdpsxds, 1, float64, int64, VsrD(0), VsrD(0), \
2648 0x8000000000000000ULL)
2649 VSX_CVT_FP_TO_INT(xscvdpsxws, 1, float64, int32, VsrD(0), VsrW(1), \
2650 0x80000000U)
2651 VSX_CVT_FP_TO_INT(xscvdpuxds, 1, float64, uint64, VsrD(0), VsrD(0), 0ULL)
2652 VSX_CVT_FP_TO_INT(xscvdpuxws, 1, float64, uint32, VsrD(0), VsrW(1), 0U)
2653 VSX_CVT_FP_TO_INT(xvcvdpsxds, 2, float64, int64, VsrD(i), VsrD(i), \
2654 0x8000000000000000ULL)
2655 VSX_CVT_FP_TO_INT(xvcvdpsxws, 2, float64, int32, VsrD(i), VsrW(2*i), \
2656 0x80000000U)
2657 VSX_CVT_FP_TO_INT(xvcvdpuxds, 2, float64, uint64, VsrD(i), VsrD(i), 0ULL)
2658 VSX_CVT_FP_TO_INT(xvcvdpuxws, 2, float64, uint32, VsrD(i), VsrW(2*i), 0U)
2659 VSX_CVT_FP_TO_INT(xvcvspsxds, 2, float32, int64, VsrW(2*i), VsrD(i), \
2660 0x8000000000000000ULL)
2661 VSX_CVT_FP_TO_INT(xvcvspsxws, 4, float32, int32, VsrW(i), VsrW(i), 0x80000000U)
2662 VSX_CVT_FP_TO_INT(xvcvspuxds, 2, float32, uint64, VsrW(2*i), VsrD(i), 0ULL)
2663 VSX_CVT_FP_TO_INT(xvcvspuxws, 4, float32, uint32, VsrW(i), VsrW(i), 0U)
2664
2665 /* VSX_CVT_INT_TO_FP - VSX integer to floating point conversion
2666 * op - instruction mnemonic
2667 * nels - number of elements (1, 2 or 4)
2668 * stp - source type (int32, uint32, int64 or uint64)
2669 * ttp - target type (float32 or float64)
2670 * sfld - source vsr_t field
2671 * tfld - target vsr_t field
2672 * jdef - definition of the j index (i or 2*i)
2673 * sfprf - set FPRF
2674 */
2675 #define VSX_CVT_INT_TO_FP(op, nels, stp, ttp, sfld, tfld, sfprf, r2sp) \
2676 void helper_##op(CPUPPCState *env, uint32_t opcode) \
2677 { \
2678 ppc_vsr_t xt, xb; \
2679 int i; \
2680 \
2681 getVSR(xB(opcode), &xb, env); \
2682 getVSR(xT(opcode), &xt, env); \
2683 \
2684 for (i = 0; i < nels; i++) { \
2685 xt.tfld = stp##_to_##ttp(xb.sfld, &env->fp_status); \
2686 if (r2sp) { \
2687 xt.tfld = helper_frsp(env, xt.tfld); \
2688 } \
2689 if (sfprf) { \
2690 helper_compute_fprf(env, xt.tfld); \
2691 } \
2692 } \
2693 \
2694 putVSR(xT(opcode), &xt, env); \
2695 float_check_status(env); \
2696 }
2697
2698 VSX_CVT_INT_TO_FP(xscvsxddp, 1, int64, float64, VsrD(0), VsrD(0), 1, 0)
2699 VSX_CVT_INT_TO_FP(xscvuxddp, 1, uint64, float64, VsrD(0), VsrD(0), 1, 0)
2700 VSX_CVT_INT_TO_FP(xscvsxdsp, 1, int64, float64, VsrD(0), VsrD(0), 1, 1)
2701 VSX_CVT_INT_TO_FP(xscvuxdsp, 1, uint64, float64, VsrD(0), VsrD(0), 1, 1)
2702 VSX_CVT_INT_TO_FP(xvcvsxddp, 2, int64, float64, VsrD(i), VsrD(i), 0, 0)
2703 VSX_CVT_INT_TO_FP(xvcvuxddp, 2, uint64, float64, VsrD(i), VsrD(i), 0, 0)
2704 VSX_CVT_INT_TO_FP(xvcvsxwdp, 2, int32, float64, VsrW(2*i), VsrD(i), 0, 0)
2705 VSX_CVT_INT_TO_FP(xvcvuxwdp, 2, uint64, float64, VsrW(2*i), VsrD(i), 0, 0)
2706 VSX_CVT_INT_TO_FP(xvcvsxdsp, 2, int64, float32, VsrD(i), VsrW(2*i), 0, 0)
2707 VSX_CVT_INT_TO_FP(xvcvuxdsp, 2, uint64, float32, VsrD(i), VsrW(2*i), 0, 0)
2708 VSX_CVT_INT_TO_FP(xvcvsxwsp, 4, int32, float32, VsrW(i), VsrW(i), 0, 0)
2709 VSX_CVT_INT_TO_FP(xvcvuxwsp, 4, uint32, float32, VsrW(i), VsrW(i), 0, 0)
2710
2711 /* For "use current rounding mode", define a value that will not be one of
2712 * the existing rounding model enums.
2713 */
2714 #define FLOAT_ROUND_CURRENT (float_round_nearest_even + float_round_down + \
2715 float_round_up + float_round_to_zero)
2716
2717 /* VSX_ROUND - VSX floating point round
2718 * op - instruction mnemonic
2719 * nels - number of elements (1, 2 or 4)
2720 * tp - type (float32 or float64)
2721 * fld - vsr_t field (VsrD(*) or VsrW(*))
2722 * rmode - rounding mode
2723 * sfprf - set FPRF
2724 */
2725 #define VSX_ROUND(op, nels, tp, fld, rmode, sfprf) \
2726 void helper_##op(CPUPPCState *env, uint32_t opcode) \
2727 { \
2728 ppc_vsr_t xt, xb; \
2729 int i; \
2730 getVSR(xB(opcode), &xb, env); \
2731 getVSR(xT(opcode), &xt, env); \
2732 \
2733 if (rmode != FLOAT_ROUND_CURRENT) { \
2734 set_float_rounding_mode(rmode, &env->fp_status); \
2735 } \
2736 \
2737 for (i = 0; i < nels; i++) { \
2738 if (unlikely(tp##_is_signaling_nan(xb.fld, \
2739 &env->fp_status))) { \
2740 float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 0); \
2741 xt.fld = tp##_snan_to_qnan(xb.fld); \
2742 } else { \
2743 xt.fld = tp##_round_to_int(xb.fld, &env->fp_status); \
2744 } \
2745 if (sfprf) { \
2746 helper_compute_fprf(env, xt.fld); \
2747 } \
2748 } \
2749 \
2750 /* If this is not a "use current rounding mode" instruction, \
2751 * then inhibit setting of the XX bit and restore rounding \
2752 * mode from FPSCR */ \
2753 if (rmode != FLOAT_ROUND_CURRENT) { \
2754 fpscr_set_rounding_mode(env); \
2755 env->fp_status.float_exception_flags &= ~float_flag_inexact; \
2756 } \
2757 \
2758 putVSR(xT(opcode), &xt, env); \
2759 float_check_status(env); \
2760 }
2761
2762 VSX_ROUND(xsrdpi, 1, float64, VsrD(0), float_round_ties_away, 1)
2763 VSX_ROUND(xsrdpic, 1, float64, VsrD(0), FLOAT_ROUND_CURRENT, 1)
2764 VSX_ROUND(xsrdpim, 1, float64, VsrD(0), float_round_down, 1)
2765 VSX_ROUND(xsrdpip, 1, float64, VsrD(0), float_round_up, 1)
2766 VSX_ROUND(xsrdpiz, 1, float64, VsrD(0), float_round_to_zero, 1)
2767
2768 VSX_ROUND(xvrdpi, 2, float64, VsrD(i), float_round_ties_away, 0)
2769 VSX_ROUND(xvrdpic, 2, float64, VsrD(i), FLOAT_ROUND_CURRENT, 0)
2770 VSX_ROUND(xvrdpim, 2, float64, VsrD(i), float_round_down, 0)
2771 VSX_ROUND(xvrdpip, 2, float64, VsrD(i), float_round_up, 0)
2772 VSX_ROUND(xvrdpiz, 2, float64, VsrD(i), float_round_to_zero, 0)
2773
2774 VSX_ROUND(xvrspi, 4, float32, VsrW(i), float_round_ties_away, 0)
2775 VSX_ROUND(xvrspic, 4, float32, VsrW(i), FLOAT_ROUND_CURRENT, 0)
2776 VSX_ROUND(xvrspim, 4, float32, VsrW(i), float_round_down, 0)
2777 VSX_ROUND(xvrspip, 4, float32, VsrW(i), float_round_up, 0)
2778 VSX_ROUND(xvrspiz, 4, float32, VsrW(i), float_round_to_zero, 0)
2779
2780 uint64_t helper_xsrsp(CPUPPCState *env, uint64_t xb)
2781 {
2782 helper_reset_fpstatus(env);
2783
2784 uint64_t xt = helper_frsp(env, xb);
2785
2786 helper_compute_fprf(env, xt);
2787 float_check_status(env);
2788 return xt;
2789 }
AR7 emulation for QEMU