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[qemu.git] / target-ppc / fpu_helper.c
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bd23cd45
BS		 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 "cpu.h"
bd23cd45
BS		 20#include "helper.h"
21
22/*****************************************************************************/
23/* Floating point operations helpers */
8e703949 24uint64_t helper_float32_to_float64(CPUPPCState *env, uint32_t arg)
bd23cd45
BS		 25{
26 CPU_FloatU f;
27 CPU_DoubleU d;
28
29 f.l = arg;
30 d.d = float32_to_float64(f.f, &env->fp_status);
31 return d.ll;
32}
33
8e703949 34uint32_t helper_float64_to_float32(CPUPPCState *env, uint64_t arg)
bd23cd45
BS		 35{
36 CPU_FloatU f;
37 CPU_DoubleU d;
38
39 d.ll = arg;
40 f.f = float64_to_float32(d.d, &env->fp_status);
41 return f.l;
42}
43
44static inline int isden(float64 d)
45{
46 CPU_DoubleU u;
47
48 u.d = d;
49
50 return ((u.ll >> 52) & 0x7FF) == 0;
51}
52
8e703949 53uint32_t helper_compute_fprf(CPUPPCState *env, uint64_t arg, uint32_t set_fprf)
bd23cd45
BS		 54{
55 CPU_DoubleU farg;
56 int isneg;
57 int ret;
58
59 farg.ll = arg;
60 isneg = float64_is_neg(farg.d);
61 if (unlikely(float64_is_any_nan(farg.d))) {
62 if (float64_is_signaling_nan(farg.d)) {
63 /* Signaling NaN: flags are undefined */
64 ret = 0x00;
65 } else {
66 /* Quiet NaN */
67 ret = 0x11;
68 }
69 } else if (unlikely(float64_is_infinity(farg.d))) {
70 /* +/- infinity */
71 if (isneg) {
72 ret = 0x09;
73 } else {
74 ret = 0x05;
75 }
76 } else {
77 if (float64_is_zero(farg.d)) {
78 /* +/- zero */
79 if (isneg) {
80 ret = 0x12;
81 } else {
82 ret = 0x02;
83 }
84 } else {
85 if (isden(farg.d)) {
86 /* Denormalized numbers */
87 ret = 0x10;
88 } else {
89 /* Normalized numbers */
90 ret = 0x00;
91 }
92 if (isneg) {
93 ret |= 0x08;
94 } else {
95 ret |= 0x04;
96 }
97 }
98 }
99 if (set_fprf) {
100 /* We update FPSCR_FPRF */
101 env->fpscr &= ~(0x1F << FPSCR_FPRF);
102 env->fpscr |= ret << FPSCR_FPRF;
103 }
104 /* We just need fpcc to update Rc1 */
105 return ret & 0xF;
106}
107
108/* Floating-point invalid operations exception */
8e703949 109static inline uint64_t fload_invalid_op_excp(CPUPPCState *env, int op)
bd23cd45
BS		 110{
111 uint64_t ret = 0;
112 int ve;
113
114 ve = fpscr_ve;
115 switch (op) {
116 case POWERPC_EXCP_FP_VXSNAN:
117 env->fpscr |= 1 << FPSCR_VXSNAN;
118 break;
119 case POWERPC_EXCP_FP_VXSOFT:
120 env->fpscr |= 1 << FPSCR_VXSOFT;
121 break;
122 case POWERPC_EXCP_FP_VXISI:
123 /* Magnitude subtraction of infinities */
124 env->fpscr |= 1 << FPSCR_VXISI;
125 goto update_arith;
126 case POWERPC_EXCP_FP_VXIDI:
127 /* Division of infinity by infinity */
128 env->fpscr |= 1 << FPSCR_VXIDI;
129 goto update_arith;
130 case POWERPC_EXCP_FP_VXZDZ:
131 /* Division of zero by zero */
132 env->fpscr |= 1 << FPSCR_VXZDZ;
133 goto update_arith;
134 case POWERPC_EXCP_FP_VXIMZ:
135 /* Multiplication of zero by infinity */
136 env->fpscr |= 1 << FPSCR_VXIMZ;
137 goto update_arith;
138 case POWERPC_EXCP_FP_VXVC:
139 /* Ordered comparison of NaN */
140 env->fpscr |= 1 << FPSCR_VXVC;
141 env->fpscr &= ~(0xF << FPSCR_FPCC);
142 env->fpscr |= 0x11 << FPSCR_FPCC;
143 /* We must update the target FPR before raising the exception */
144 if (ve != 0) {
145 env->exception_index = POWERPC_EXCP_PROGRAM;
146 env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_VXVC;
147 /* Update the floating-point enabled exception summary */
148 env->fpscr |= 1 << FPSCR_FEX;
149 /* Exception is differed */
150 ve = 0;
151 }
152 break;
153 case POWERPC_EXCP_FP_VXSQRT:
154 /* Square root of a negative number */
155 env->fpscr |= 1 << FPSCR_VXSQRT;
156 update_arith:
157 env->fpscr &= ~((1 << FPSCR_FR) | (1 << FPSCR_FI));
158 if (ve == 0) {
159 /* Set the result to quiet NaN */
160 ret = 0x7FF8000000000000ULL;
161 env->fpscr &= ~(0xF << FPSCR_FPCC);
162 env->fpscr |= 0x11 << FPSCR_FPCC;
163 }
164 break;
165 case POWERPC_EXCP_FP_VXCVI:
166 /* Invalid conversion */
167 env->fpscr |= 1 << FPSCR_VXCVI;
168 env->fpscr &= ~((1 << FPSCR_FR) | (1 << FPSCR_FI));
169 if (ve == 0) {
170 /* Set the result to quiet NaN */
171 ret = 0x7FF8000000000000ULL;
172 env->fpscr &= ~(0xF << FPSCR_FPCC);
173 env->fpscr |= 0x11 << FPSCR_FPCC;
174 }
175 break;
176 }
177 /* Update the floating-point invalid operation summary */
178 env->fpscr |= 1 << FPSCR_VX;
179 /* Update the floating-point exception summary */
180 env->fpscr |= 1 << FPSCR_FX;
181 if (ve != 0) {
182 /* Update the floating-point enabled exception summary */
183 env->fpscr |= 1 << FPSCR_FEX;
184 if (msr_fe0 != 0 || msr_fe1 != 0) {
185 helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM,
186 POWERPC_EXCP_FP | op);
187 }
188 }
189 return ret;
190}
191
8e703949 192static inline void float_zero_divide_excp(CPUPPCState *env)
bd23cd45
BS		 193{
194 env->fpscr |= 1 << FPSCR_ZX;
195 env->fpscr &= ~((1 << FPSCR_FR) | (1 << FPSCR_FI));
196 /* Update the floating-point exception summary */
197 env->fpscr |= 1 << FPSCR_FX;
198 if (fpscr_ze != 0) {
199 /* Update the floating-point enabled exception summary */
200 env->fpscr |= 1 << FPSCR_FEX;
201 if (msr_fe0 != 0 || msr_fe1 != 0) {
202 helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM,
203 POWERPC_EXCP_FP | POWERPC_EXCP_FP_ZX);
204 }
205 }
206}
207
8e703949 208static inline void float_overflow_excp(CPUPPCState *env)
bd23cd45
BS		 209{
210 env->fpscr |= 1 << FPSCR_OX;
211 /* Update the floating-point exception summary */
212 env->fpscr |= 1 << FPSCR_FX;
213 if (fpscr_oe != 0) {
214 /* XXX: should adjust the result */
215 /* Update the floating-point enabled exception summary */
216 env->fpscr |= 1 << FPSCR_FEX;
217 /* We must update the target FPR before raising the exception */
218 env->exception_index = POWERPC_EXCP_PROGRAM;
219 env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_OX;
220 } else {
221 env->fpscr |= 1 << FPSCR_XX;
222 env->fpscr |= 1 << FPSCR_FI;
223 }
224}
225
8e703949 226static inline void float_underflow_excp(CPUPPCState *env)
bd23cd45
BS		 227{
228 env->fpscr |= 1 << FPSCR_UX;
229 /* Update the floating-point exception summary */
230 env->fpscr |= 1 << FPSCR_FX;
231 if (fpscr_ue != 0) {
232 /* XXX: should adjust the result */
233 /* Update the floating-point enabled exception summary */
234 env->fpscr |= 1 << FPSCR_FEX;
235 /* We must update the target FPR before raising the exception */
236 env->exception_index = POWERPC_EXCP_PROGRAM;
237 env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_UX;
238 }
239}
240
8e703949 241static inline void float_inexact_excp(CPUPPCState *env)
bd23cd45
BS		 242{
243 env->fpscr |= 1 << FPSCR_XX;
244 /* Update the floating-point exception summary */
245 env->fpscr |= 1 << FPSCR_FX;
246 if (fpscr_xe != 0) {
247 /* Update the floating-point enabled exception summary */
248 env->fpscr |= 1 << FPSCR_FEX;
249 /* We must update the target FPR before raising the exception */
250 env->exception_index = POWERPC_EXCP_PROGRAM;
251 env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_XX;
252 }
253}
254
8e703949 255static inline void fpscr_set_rounding_mode(CPUPPCState *env)
bd23cd45
BS		 256{
257 int rnd_type;
258
259 /* Set rounding mode */
260 switch (fpscr_rn) {
261 case 0:
262 /* Best approximation (round to nearest) */
263 rnd_type = float_round_nearest_even;
264 break;
265 case 1:
266 /* Smaller magnitude (round toward zero) */
267 rnd_type = float_round_to_zero;
268 break;
269 case 2:
270 /* Round toward +infinite */
271 rnd_type = float_round_up;
272 break;
273 default:
274 case 3:
275 /* Round toward -infinite */
276 rnd_type = float_round_down;
277 break;
278 }
279 set_float_rounding_mode(rnd_type, &env->fp_status);
280}
281
8e703949 282void helper_fpscr_clrbit(CPUPPCState *env, uint32_t bit)
bd23cd45
BS		 283{
284 int prev;
285
286 prev = (env->fpscr >> bit) & 1;
287 env->fpscr &= ~(1 << bit);
288 if (prev == 1) {
289 switch (bit) {
290 case FPSCR_RN1:
291 case FPSCR_RN:
8e703949 292 fpscr_set_rounding_mode(env);
bd23cd45
BS		 293 break;
294 default:
295 break;
296 }
297 }
298}
299
8e703949 300void helper_fpscr_setbit(CPUPPCState *env, uint32_t bit)
bd23cd45
BS		 301{
302 int prev;
303
304 prev = (env->fpscr >> bit) & 1;
305 env->fpscr |= 1 << bit;
306 if (prev == 0) {
307 switch (bit) {
308 case FPSCR_VX:
309 env->fpscr |= 1 << FPSCR_FX;
310 if (fpscr_ve) {
311 goto raise_ve;
312 }
90638255 313 break;
bd23cd45
BS		 314 case FPSCR_OX:
315 env->fpscr |= 1 << FPSCR_FX;
316 if (fpscr_oe) {
317 goto raise_oe;
318 }
319 break;
320 case FPSCR_UX:
321 env->fpscr |= 1 << FPSCR_FX;
322 if (fpscr_ue) {
323 goto raise_ue;
324 }
325 break;
326 case FPSCR_ZX:
327 env->fpscr |= 1 << FPSCR_FX;
328 if (fpscr_ze) {
329 goto raise_ze;
330 }
331 break;
332 case FPSCR_XX:
333 env->fpscr |= 1 << FPSCR_FX;
334 if (fpscr_xe) {
335 goto raise_xe;
336 }
337 break;
338 case FPSCR_VXSNAN:
339 case FPSCR_VXISI:
340 case FPSCR_VXIDI:
341 case FPSCR_VXZDZ:
342 case FPSCR_VXIMZ:
343 case FPSCR_VXVC:
344 case FPSCR_VXSOFT:
345 case FPSCR_VXSQRT:
346 case FPSCR_VXCVI:
347 env->fpscr |= 1 << FPSCR_VX;
348 env->fpscr |= 1 << FPSCR_FX;
349 if (fpscr_ve != 0) {
350 goto raise_ve;
351 }
352 break;
353 case FPSCR_VE:
354 if (fpscr_vx != 0) {
355 raise_ve:
356 env->error_code = POWERPC_EXCP_FP;
357 if (fpscr_vxsnan) {
358 env->error_code |= POWERPC_EXCP_FP_VXSNAN;
359 }
360 if (fpscr_vxisi) {
361 env->error_code |= POWERPC_EXCP_FP_VXISI;
362 }
363 if (fpscr_vxidi) {
364 env->error_code |= POWERPC_EXCP_FP_VXIDI;
365 }
366 if (fpscr_vxzdz) {
367 env->error_code |= POWERPC_EXCP_FP_VXZDZ;
368 }
369 if (fpscr_vximz) {
370 env->error_code |= POWERPC_EXCP_FP_VXIMZ;
371 }
372 if (fpscr_vxvc) {
373 env->error_code |= POWERPC_EXCP_FP_VXVC;
374 }
375 if (fpscr_vxsoft) {
376 env->error_code |= POWERPC_EXCP_FP_VXSOFT;
377 }
378 if (fpscr_vxsqrt) {
379 env->error_code |= POWERPC_EXCP_FP_VXSQRT;
380 }
381 if (fpscr_vxcvi) {
382 env->error_code |= POWERPC_EXCP_FP_VXCVI;
383 }
384 goto raise_excp;
385 }
386 break;
387 case FPSCR_OE:
388 if (fpscr_ox != 0) {
389 raise_oe:
390 env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_OX;
391 goto raise_excp;
392 }
393 break;
394 case FPSCR_UE:
395 if (fpscr_ux != 0) {
396 raise_ue:
397 env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_UX;
398 goto raise_excp;
399 }
400 break;
401 case FPSCR_ZE:
402 if (fpscr_zx != 0) {
403 raise_ze:
404 env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_ZX;
405 goto raise_excp;
406 }
407 break;
408 case FPSCR_XE:
409 if (fpscr_xx != 0) {
410 raise_xe:
411 env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_XX;
412 goto raise_excp;
413 }
414 break;
415 case FPSCR_RN1:
416 case FPSCR_RN:
8e703949 417 fpscr_set_rounding_mode(env);
bd23cd45
BS		 418 break;
419 default:
420 break;
421 raise_excp:
422 /* Update the floating-point enabled exception summary */
423 env->fpscr |= 1 << FPSCR_FEX;
424 /* We have to update Rc1 before raising the exception */
425 env->exception_index = POWERPC_EXCP_PROGRAM;
426 break;
427 }
428 }
429}
430
8e703949 431void helper_store_fpscr(CPUPPCState *env, uint64_t arg, uint32_t mask)
bd23cd45
BS		 432{
433 /*
434 * We use only the 32 LSB of the incoming fpr
435 */
436 uint32_t prev, new;
437 int i;
438
439 prev = env->fpscr;
440 new = (uint32_t)arg;
441 new &= ~0x60000000;
442 new |= prev & 0x60000000;
443 for (i = 0; i < 8; i++) {
444 if (mask & (1 << i)) {
445 env->fpscr &= ~(0xF << (4 * i));
446 env->fpscr |= new & (0xF << (4 * i));
447 }
448 }
449 /* Update VX and FEX */
450 if (fpscr_ix != 0) {
451 env->fpscr |= 1 << FPSCR_VX;
452 } else {
453 env->fpscr &= ~(1 << FPSCR_VX);
454 }
455 if ((fpscr_ex & fpscr_eex) != 0) {
456 env->fpscr |= 1 << FPSCR_FEX;
457 env->exception_index = POWERPC_EXCP_PROGRAM;
458 /* XXX: we should compute it properly */
459 env->error_code = POWERPC_EXCP_FP;
460 } else {
461 env->fpscr &= ~(1 << FPSCR_FEX);
462 }
8e703949 463 fpscr_set_rounding_mode(env);
bd23cd45
BS		 464}
465
8e703949 466void helper_float_check_status(CPUPPCState *env)
bd23cd45
BS		 467{
468 if (env->exception_index == POWERPC_EXCP_PROGRAM &&
469 (env->error_code & POWERPC_EXCP_FP)) {
470 /* Differred floating-point exception after target FPR update */
471 if (msr_fe0 != 0 || msr_fe1 != 0) {
472 helper_raise_exception_err(env, env->exception_index,
473 env->error_code);
474 }
475 } else {
476 int status = get_float_exception_flags(&env->fp_status);
477 if (status & float_flag_divbyzero) {
8e703949 478 float_zero_divide_excp(env);
bd23cd45 479 } else if (status & float_flag_overflow) {
8e703949 480 float_overflow_excp(env);
bd23cd45 481 } else if (status & float_flag_underflow) {
8e703949 482 float_underflow_excp(env);
bd23cd45 483 } else if (status & float_flag_inexact) {
8e703949 484 float_inexact_excp(env);
bd23cd45
BS		 485 }
486 }
487}
488
8e703949 489void helper_reset_fpstatus(CPUPPCState *env)
bd23cd45
BS		 490{
491 set_float_exception_flags(0, &env->fp_status);
492}
493
494/* fadd - fadd. */
8e703949 495uint64_t helper_fadd(CPUPPCState *env, uint64_t arg1, uint64_t arg2)
bd23cd45
BS		 496{
497 CPU_DoubleU farg1, farg2;
498
499 farg1.ll = arg1;
500 farg2.ll = arg2;
501
502 if (unlikely(float64_is_infinity(farg1.d) && float64_is_infinity(farg2.d) &&
503 float64_is_neg(farg1.d) != float64_is_neg(farg2.d))) {
504 /* Magnitude subtraction of infinities */
8e703949 505 farg1.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXISI);
bd23cd45
BS		 506 } else {
507 if (unlikely(float64_is_signaling_nan(farg1.d) ||
508 float64_is_signaling_nan(farg2.d))) {
509 /* sNaN addition */
8e703949 510 fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN);
bd23cd45
BS		 511 }
512 farg1.d = float64_add(farg1.d, farg2.d, &env->fp_status);
513 }
514
515 return farg1.ll;
516}
517
518/* fsub - fsub. */
8e703949 519uint64_t helper_fsub(CPUPPCState *env, uint64_t arg1, uint64_t arg2)
bd23cd45
BS		 520{
521 CPU_DoubleU farg1, farg2;
522
523 farg1.ll = arg1;
524 farg2.ll = arg2;
525
526 if (unlikely(float64_is_infinity(farg1.d) && float64_is_infinity(farg2.d) &&
527 float64_is_neg(farg1.d) == float64_is_neg(farg2.d))) {
528 /* Magnitude subtraction of infinities */
8e703949 529 farg1.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXISI);
bd23cd45
BS		 530 } else {
531 if (unlikely(float64_is_signaling_nan(farg1.d) ||
532 float64_is_signaling_nan(farg2.d))) {
533 /* sNaN subtraction */
8e703949 534 fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN);
bd23cd45
BS		 535 }
536 farg1.d = float64_sub(farg1.d, farg2.d, &env->fp_status);
537 }
538
539 return farg1.ll;
540}
541
542/* fmul - fmul. */
8e703949 543uint64_t helper_fmul(CPUPPCState *env, uint64_t arg1, uint64_t arg2)
bd23cd45
BS		 544{
545 CPU_DoubleU farg1, farg2;
546
547 farg1.ll = arg1;
548 farg2.ll = arg2;
549
550 if (unlikely((float64_is_infinity(farg1.d) && float64_is_zero(farg2.d)) ||
551 (float64_is_zero(farg1.d) && float64_is_infinity(farg2.d)))) {
552 /* Multiplication of zero by infinity */
8e703949 553 farg1.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXIMZ);
bd23cd45
BS		 554 } else {
555 if (unlikely(float64_is_signaling_nan(farg1.d) ||
556 float64_is_signaling_nan(farg2.d))) {
557 /* sNaN multiplication */
8e703949 558 fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN);
bd23cd45
BS		 559 }
560 farg1.d = float64_mul(farg1.d, farg2.d, &env->fp_status);
561 }
562
563 return farg1.ll;
564}
565
566/* fdiv - fdiv. */
8e703949 567uint64_t helper_fdiv(CPUPPCState *env, uint64_t arg1, uint64_t arg2)
bd23cd45
BS		 568{
569 CPU_DoubleU farg1, farg2;
570
571 farg1.ll = arg1;
572 farg2.ll = arg2;
573
574 if (unlikely(float64_is_infinity(farg1.d) &&
575 float64_is_infinity(farg2.d))) {
576 /* Division of infinity by infinity */
8e703949 577 farg1.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXIDI);
bd23cd45
BS		 578 } else if (unlikely(float64_is_zero(farg1.d) && float64_is_zero(farg2.d))) {
579 /* Division of zero by zero */
8e703949 580 farg1.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXZDZ);
bd23cd45
BS		 581 } else {
582 if (unlikely(float64_is_signaling_nan(farg1.d) ||
583 float64_is_signaling_nan(farg2.d))) {
584 /* sNaN division */
8e703949 585 fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN);
bd23cd45
BS		 586 }
587 farg1.d = float64_div(farg1.d, farg2.d, &env->fp_status);
588 }
589
590 return farg1.ll;
591}
592
593/* fabs */
8e703949 594uint64_t helper_fabs(CPUPPCState *env, uint64_t arg)
bd23cd45
BS		 595{
596 CPU_DoubleU farg;
597
598 farg.ll = arg;
599 farg.d = float64_abs(farg.d);
600 return farg.ll;
601}
602
603/* fnabs */
8e703949 604uint64_t helper_fnabs(CPUPPCState *env, uint64_t arg)
bd23cd45
BS		 605{
606 CPU_DoubleU farg;
607
608 farg.ll = arg;
609 farg.d = float64_abs(farg.d);
610 farg.d = float64_chs(farg.d);
611 return farg.ll;
612}
613
614/* fneg */
8e703949 615uint64_t helper_fneg(CPUPPCState *env, uint64_t arg)
bd23cd45
BS		 616{
617 CPU_DoubleU farg;
618
619 farg.ll = arg;
620 farg.d = float64_chs(farg.d);
621 return farg.ll;
622}
623
624/* fctiw - fctiw. */
8e703949 625uint64_t helper_fctiw(CPUPPCState *env, uint64_t arg)
bd23cd45
BS		 626{
627 CPU_DoubleU farg;
628
629 farg.ll = arg;
630
631 if (unlikely(float64_is_signaling_nan(farg.d))) {
632 /* sNaN conversion */
8e703949 633 farg.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN |
bd23cd45
BS		 634 POWERPC_EXCP_FP_VXCVI);
635 } else if (unlikely(float64_is_quiet_nan(farg.d) ||
636 float64_is_infinity(farg.d))) {
637 /* qNan / infinity conversion */
8e703949 638 farg.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXCVI);
bd23cd45
BS		 639 } else {
640 farg.ll = float64_to_int32(farg.d, &env->fp_status);
641 /* XXX: higher bits are not supposed to be significant.
642 * to make tests easier, return the same as a real PowerPC 750
643 */
644 farg.ll |= 0xFFF80000ULL << 32;
645 }
646 return farg.ll;
647}
648
649/* fctiwz - fctiwz. */
8e703949 650uint64_t helper_fctiwz(CPUPPCState *env, uint64_t arg)
bd23cd45
BS		 651{
652 CPU_DoubleU farg;
653
654 farg.ll = arg;
655
656 if (unlikely(float64_is_signaling_nan(farg.d))) {
657 /* sNaN conversion */
8e703949 658 farg.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN |
bd23cd45
BS		 659 POWERPC_EXCP_FP_VXCVI);
660 } else if (unlikely(float64_is_quiet_nan(farg.d) ||
661 float64_is_infinity(farg.d))) {
662 /* qNan / infinity conversion */
8e703949 663 farg.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXCVI);
bd23cd45
BS		 664 } else {
665 farg.ll = float64_to_int32_round_to_zero(farg.d, &env->fp_status);
666 /* XXX: higher bits are not supposed to be significant.
667 * to make tests easier, return the same as a real PowerPC 750
668 */
669 farg.ll |= 0xFFF80000ULL << 32;
670 }
671 return farg.ll;
672}
673
674#if defined(TARGET_PPC64)
675/* fcfid - fcfid. */
8e703949 676uint64_t helper_fcfid(CPUPPCState *env, uint64_t arg)
bd23cd45
BS		 677{
678 CPU_DoubleU farg;
679
680 farg.d = int64_to_float64(arg, &env->fp_status);
681 return farg.ll;
682}
683
684/* fctid - fctid. */
8e703949 685uint64_t helper_fctid(CPUPPCState *env, uint64_t arg)
bd23cd45
BS		 686{
687 CPU_DoubleU farg;
688
689 farg.ll = arg;
690
691 if (unlikely(float64_is_signaling_nan(farg.d))) {
692 /* sNaN conversion */
8e703949 693 farg.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN |
bd23cd45
BS		 694 POWERPC_EXCP_FP_VXCVI);
695 } else if (unlikely(float64_is_quiet_nan(farg.d) ||
696 float64_is_infinity(farg.d))) {
697 /* qNan / infinity conversion */
8e703949 698 farg.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXCVI);
bd23cd45
BS		 699 } else {
700 farg.ll = float64_to_int64(farg.d, &env->fp_status);
701 }
702 return farg.ll;
703}
704
705/* fctidz - fctidz. */
8e703949 706uint64_t helper_fctidz(CPUPPCState *env, uint64_t arg)
bd23cd45
BS		 707{
708 CPU_DoubleU farg;
709
710 farg.ll = arg;
711
712 if (unlikely(float64_is_signaling_nan(farg.d))) {
713 /* sNaN conversion */
8e703949 714 farg.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN |
bd23cd45
BS		 715 POWERPC_EXCP_FP_VXCVI);
716 } else if (unlikely(float64_is_quiet_nan(farg.d) ||
717 float64_is_infinity(farg.d))) {
718 /* qNan / infinity conversion */
8e703949 719 farg.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXCVI);
bd23cd45
BS		 720 } else {
721 farg.ll = float64_to_int64_round_to_zero(farg.d, &env->fp_status);
722 }
723 return farg.ll;
724}
725
726#endif
727
8e703949
BS		 728static inline uint64_t do_fri(CPUPPCState *env, uint64_t arg,
729 int rounding_mode)
bd23cd45
BS		 730{
731 CPU_DoubleU farg;
732
733 farg.ll = arg;
734
735 if (unlikely(float64_is_signaling_nan(farg.d))) {
736 /* sNaN round */
8e703949 737 farg.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN |
bd23cd45
BS		 738 POWERPC_EXCP_FP_VXCVI);
739 } else if (unlikely(float64_is_quiet_nan(farg.d) ||
740 float64_is_infinity(farg.d))) {
741 /* qNan / infinity round */
8e703949 742 farg.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXCVI);
bd23cd45
BS		 743 } else {
744 set_float_rounding_mode(rounding_mode, &env->fp_status);
745 farg.ll = float64_round_to_int(farg.d, &env->fp_status);
746 /* Restore rounding mode from FPSCR */
8e703949 747 fpscr_set_rounding_mode(env);
bd23cd45
BS		 748 }
749 return farg.ll;
750}
751
8e703949 752uint64_t helper_frin(CPUPPCState *env, uint64_t arg)
bd23cd45 753{
8e703949 754 return do_fri(env, arg, float_round_nearest_even);
bd23cd45
BS		 755}
756
8e703949 757uint64_t helper_friz(CPUPPCState *env, uint64_t arg)
bd23cd45 758{
8e703949 759 return do_fri(env, arg, float_round_to_zero);
bd23cd45
BS		 760}
761
8e703949 762uint64_t helper_frip(CPUPPCState *env, uint64_t arg)
bd23cd45 763{
8e703949 764 return do_fri(env, arg, float_round_up);
bd23cd45
BS		 765}
766
8e703949 767uint64_t helper_frim(CPUPPCState *env, uint64_t arg)
bd23cd45 768{
8e703949 769 return do_fri(env, arg, float_round_down);
bd23cd45
BS		 770}
771
772/* fmadd - fmadd. */
8e703949
BS		 773uint64_t helper_fmadd(CPUPPCState *env, uint64_t arg1, uint64_t arg2,
774 uint64_t arg3)
bd23cd45
BS		 775{
776 CPU_DoubleU farg1, farg2, farg3;
777
778 farg1.ll = arg1;
779 farg2.ll = arg2;
780 farg3.ll = arg3;
781
782 if (unlikely((float64_is_infinity(farg1.d) && float64_is_zero(farg2.d)) ||
783 (float64_is_zero(farg1.d) && float64_is_infinity(farg2.d)))) {
784 /* Multiplication of zero by infinity */
8e703949 785 farg1.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXIMZ);
bd23cd45
BS		 786 } else {
787 if (unlikely(float64_is_signaling_nan(farg1.d) ||
788 float64_is_signaling_nan(farg2.d) ||
789 float64_is_signaling_nan(farg3.d))) {
790 /* sNaN operation */
8e703949 791 fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN);
bd23cd45
BS		 792 }
793 /* This is the way the PowerPC specification defines it */
794 float128 ft0_128, ft1_128;
795
796 ft0_128 = float64_to_float128(farg1.d, &env->fp_status);
797 ft1_128 = float64_to_float128(farg2.d, &env->fp_status);
798 ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status);
799 if (unlikely(float128_is_infinity(ft0_128) &&
800 float64_is_infinity(farg3.d) &&
801 float128_is_neg(ft0_128) != float64_is_neg(farg3.d))) {
802 /* Magnitude subtraction of infinities */
8e703949 803 farg1.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXISI);
bd23cd45
BS		 804 } else {
805 ft1_128 = float64_to_float128(farg3.d, &env->fp_status);
806 ft0_128 = float128_add(ft0_128, ft1_128, &env->fp_status);
807 farg1.d = float128_to_float64(ft0_128, &env->fp_status);
808 }
809 }
810
811 return farg1.ll;
812}
813
814/* fmsub - fmsub. */
8e703949
BS		 815uint64_t helper_fmsub(CPUPPCState *env, uint64_t arg1, uint64_t arg2,
816 uint64_t arg3)
bd23cd45
BS		 817{
818 CPU_DoubleU farg1, farg2, farg3;
819
820 farg1.ll = arg1;
821 farg2.ll = arg2;
822 farg3.ll = arg3;
823
824 if (unlikely((float64_is_infinity(farg1.d) && float64_is_zero(farg2.d)) ||
825 (float64_is_zero(farg1.d) &&
826 float64_is_infinity(farg2.d)))) {
827 /* Multiplication of zero by infinity */
8e703949 828 farg1.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXIMZ);
bd23cd45
BS		 829 } else {
830 if (unlikely(float64_is_signaling_nan(farg1.d) ||
831 float64_is_signaling_nan(farg2.d) ||
832 float64_is_signaling_nan(farg3.d))) {
833 /* sNaN operation */
8e703949 834 fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN);
bd23cd45
BS		 835 }
836 /* This is the way the PowerPC specification defines it */
837 float128 ft0_128, ft1_128;
838
839 ft0_128 = float64_to_float128(farg1.d, &env->fp_status);
840 ft1_128 = float64_to_float128(farg2.d, &env->fp_status);
841 ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status);
842 if (unlikely(float128_is_infinity(ft0_128) &&
843 float64_is_infinity(farg3.d) &&
844 float128_is_neg(ft0_128) == float64_is_neg(farg3.d))) {
845 /* Magnitude subtraction of infinities */
8e703949 846 farg1.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXISI);
bd23cd45
BS		 847 } else {
848 ft1_128 = float64_to_float128(farg3.d, &env->fp_status);
849 ft0_128 = float128_sub(ft0_128, ft1_128, &env->fp_status);
850 farg1.d = float128_to_float64(ft0_128, &env->fp_status);
851 }
852 }
853 return farg1.ll;
854}
855
856/* fnmadd - fnmadd. */
8e703949
BS		 857uint64_t helper_fnmadd(CPUPPCState *env, uint64_t arg1, uint64_t arg2,
858 uint64_t arg3)
bd23cd45
BS		 859{
860 CPU_DoubleU farg1, farg2, farg3;
861
862 farg1.ll = arg1;
863 farg2.ll = arg2;
864 farg3.ll = arg3;
865
866 if (unlikely((float64_is_infinity(farg1.d) && float64_is_zero(farg2.d)) ||
867 (float64_is_zero(farg1.d) && float64_is_infinity(farg2.d)))) {
868 /* Multiplication of zero by infinity */
8e703949 869 farg1.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXIMZ);
bd23cd45
BS		 870 } else {
871 if (unlikely(float64_is_signaling_nan(farg1.d) ||
872 float64_is_signaling_nan(farg2.d) ||
873 float64_is_signaling_nan(farg3.d))) {
874 /* sNaN operation */
8e703949 875 fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN);
bd23cd45
BS		 876 }
877 /* This is the way the PowerPC specification defines it */
878 float128 ft0_128, ft1_128;
879
880 ft0_128 = float64_to_float128(farg1.d, &env->fp_status);
881 ft1_128 = float64_to_float128(farg2.d, &env->fp_status);
882 ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status);
883 if (unlikely(float128_is_infinity(ft0_128) &&
884 float64_is_infinity(farg3.d) &&
885 float128_is_neg(ft0_128) != float64_is_neg(farg3.d))) {
886 /* Magnitude subtraction of infinities */
8e703949 887 farg1.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXISI);
bd23cd45
BS		 888 } else {
889 ft1_128 = float64_to_float128(farg3.d, &env->fp_status);
890 ft0_128 = float128_add(ft0_128, ft1_128, &env->fp_status);
891 farg1.d = float128_to_float64(ft0_128, &env->fp_status);
892 }
893 if (likely(!float64_is_any_nan(farg1.d))) {
894 farg1.d = float64_chs(farg1.d);
895 }
896 }
897 return farg1.ll;
898}
899
900/* fnmsub - fnmsub. */
8e703949
BS		 901uint64_t helper_fnmsub(CPUPPCState *env, uint64_t arg1, uint64_t arg2,
902 uint64_t arg3)
bd23cd45
BS		 903{
904 CPU_DoubleU farg1, farg2, farg3;
905
906 farg1.ll = arg1;
907 farg2.ll = arg2;
908 farg3.ll = arg3;
909
910 if (unlikely((float64_is_infinity(farg1.d) && float64_is_zero(farg2.d)) ||
911 (float64_is_zero(farg1.d) &&
912 float64_is_infinity(farg2.d)))) {
913 /* Multiplication of zero by infinity */
8e703949 914 farg1.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXIMZ);
bd23cd45
BS		 915 } else {
916 if (unlikely(float64_is_signaling_nan(farg1.d) ||
917 float64_is_signaling_nan(farg2.d) ||
918 float64_is_signaling_nan(farg3.d))) {
919 /* sNaN operation */
8e703949 920 fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN);
bd23cd45
BS		 921 }
922 /* This is the way the PowerPC specification defines it */
923 float128 ft0_128, ft1_128;
924
925 ft0_128 = float64_to_float128(farg1.d, &env->fp_status);
926 ft1_128 = float64_to_float128(farg2.d, &env->fp_status);
927 ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status);
928 if (unlikely(float128_is_infinity(ft0_128) &&
929 float64_is_infinity(farg3.d) &&
930 float128_is_neg(ft0_128) == float64_is_neg(farg3.d))) {
931 /* Magnitude subtraction of infinities */
8e703949 932 farg1.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXISI);
bd23cd45
BS		 933 } else {
934 ft1_128 = float64_to_float128(farg3.d, &env->fp_status);
935 ft0_128 = float128_sub(ft0_128, ft1_128, &env->fp_status);
936 farg1.d = float128_to_float64(ft0_128, &env->fp_status);
937 }
938 if (likely(!float64_is_any_nan(farg1.d))) {
939 farg1.d = float64_chs(farg1.d);
940 }
941 }
942 return farg1.ll;
943}
944
945/* frsp - frsp. */
8e703949 946uint64_t helper_frsp(CPUPPCState *env, uint64_t arg)
bd23cd45
BS		 947{
948 CPU_DoubleU farg;
949 float32 f32;
950
951 farg.ll = arg;
952
953 if (unlikely(float64_is_signaling_nan(farg.d))) {
954 /* sNaN square root */
8e703949 955 fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN);
bd23cd45
BS		 956 }
957 f32 = float64_to_float32(farg.d, &env->fp_status);
958 farg.d = float32_to_float64(f32, &env->fp_status);
959
960 return farg.ll;
961}
962
963/* fsqrt - fsqrt. */
8e703949 964uint64_t helper_fsqrt(CPUPPCState *env, uint64_t arg)
bd23cd45
BS		 965{
966 CPU_DoubleU farg;
967
968 farg.ll = arg;
969
970 if (unlikely(float64_is_neg(farg.d) && !float64_is_zero(farg.d))) {
971 /* Square root of a negative nonzero number */
8e703949 972 farg.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSQRT);
bd23cd45
BS		 973 } else {
974 if (unlikely(float64_is_signaling_nan(farg.d))) {
975 /* sNaN square root */
8e703949 976 fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN);
bd23cd45
BS		 977 }
978 farg.d = float64_sqrt(farg.d, &env->fp_status);
979 }
980 return farg.ll;
981}
982
983/* fre - fre. */
8e703949 984uint64_t helper_fre(CPUPPCState *env, uint64_t arg)
bd23cd45
BS		 985{
986 CPU_DoubleU farg;
987
988 farg.ll = arg;
989
990 if (unlikely(float64_is_signaling_nan(farg.d))) {
991 /* sNaN reciprocal */
8e703949 992 fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN);
bd23cd45
BS		 993 }
994 farg.d = float64_div(float64_one, farg.d, &env->fp_status);
995 return farg.d;
996}
997
998/* fres - fres. */
8e703949 999uint64_t helper_fres(CPUPPCState *env, uint64_t arg)
bd23cd45
BS		 1000{
1001 CPU_DoubleU farg;
1002 float32 f32;
1003
1004 farg.ll = arg;
1005
1006 if (unlikely(float64_is_signaling_nan(farg.d))) {
1007 /* sNaN reciprocal */
8e703949 1008 fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN);
bd23cd45
BS		 1009 }
1010 farg.d = float64_div(float64_one, farg.d, &env->fp_status);
1011 f32 = float64_to_float32(farg.d, &env->fp_status);
1012 farg.d = float32_to_float64(f32, &env->fp_status);
1013
1014 return farg.ll;
1015}
1016
1017/* frsqrte - frsqrte. */
8e703949 1018uint64_t helper_frsqrte(CPUPPCState *env, uint64_t arg)
bd23cd45
BS		 1019{
1020 CPU_DoubleU farg;
1021 float32 f32;
1022
1023 farg.ll = arg;
1024
1025 if (unlikely(float64_is_neg(farg.d) && !float64_is_zero(farg.d))) {
1026 /* Reciprocal square root of a negative nonzero number */
8e703949 1027 farg.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSQRT);
bd23cd45
BS		 1028 } else {
1029 if (unlikely(float64_is_signaling_nan(farg.d))) {
1030 /* sNaN reciprocal square root */
8e703949 1031 fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN);
bd23cd45
BS		 1032 }
1033 farg.d = float64_sqrt(farg.d, &env->fp_status);
1034 farg.d = float64_div(float64_one, farg.d, &env->fp_status);
1035 f32 = float64_to_float32(farg.d, &env->fp_status);
1036 farg.d = float32_to_float64(f32, &env->fp_status);
1037 }
1038 return farg.ll;
1039}
1040
1041/* fsel - fsel. */
8e703949
BS		 1042uint64_t helper_fsel(CPUPPCState *env, uint64_t arg1, uint64_t arg2,
1043 uint64_t arg3)
bd23cd45
BS		 1044{
1045 CPU_DoubleU farg1;
1046
1047 farg1.ll = arg1;
1048
1049 if ((!float64_is_neg(farg1.d) || float64_is_zero(farg1.d)) &&
1050 !float64_is_any_nan(farg1.d)) {
1051 return arg2;
1052 } else {
1053 return arg3;
1054 }
1055}
1056
8e703949
BS		 1057void helper_fcmpu(CPUPPCState *env, uint64_t arg1, uint64_t arg2,
1058 uint32_t crfD)
bd23cd45
BS		 1059{
1060 CPU_DoubleU farg1, farg2;
1061 uint32_t ret = 0;
1062
1063 farg1.ll = arg1;
1064 farg2.ll = arg2;
1065
1066 if (unlikely(float64_is_any_nan(farg1.d) ||
1067 float64_is_any_nan(farg2.d))) {
1068 ret = 0x01UL;
1069 } else if (float64_lt(farg1.d, farg2.d, &env->fp_status)) {
1070 ret = 0x08UL;
1071 } else if (!float64_le(farg1.d, farg2.d, &env->fp_status)) {
1072 ret = 0x04UL;
1073 } else {
1074 ret = 0x02UL;
1075 }
1076
1077 env->fpscr &= ~(0x0F << FPSCR_FPRF);
1078 env->fpscr |= ret << FPSCR_FPRF;
1079 env->crf[crfD] = ret;
1080 if (unlikely(ret == 0x01UL
1081 && (float64_is_signaling_nan(farg1.d) ||
1082 float64_is_signaling_nan(farg2.d)))) {
1083 /* sNaN comparison */
8e703949 1084 fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN);
bd23cd45
BS		 1085 }
1086}
1087
8e703949
BS		 1088void helper_fcmpo(CPUPPCState *env, uint64_t arg1, uint64_t arg2,
1089 uint32_t crfD)
bd23cd45
BS		 1090{
1091 CPU_DoubleU farg1, farg2;
1092 uint32_t ret = 0;
1093
1094 farg1.ll = arg1;
1095 farg2.ll = arg2;
1096
1097 if (unlikely(float64_is_any_nan(farg1.d) ||
1098 float64_is_any_nan(farg2.d))) {
1099 ret = 0x01UL;
1100 } else if (float64_lt(farg1.d, farg2.d, &env->fp_status)) {
1101 ret = 0x08UL;
1102 } else if (!float64_le(farg1.d, farg2.d, &env->fp_status)) {
1103 ret = 0x04UL;
1104 } else {
1105 ret = 0x02UL;
1106 }
1107
1108 env->fpscr &= ~(0x0F << FPSCR_FPRF);
1109 env->fpscr |= ret << FPSCR_FPRF;
1110 env->crf[crfD] = ret;
1111 if (unlikely(ret == 0x01UL)) {
1112 if (float64_is_signaling_nan(farg1.d) ||
1113 float64_is_signaling_nan(farg2.d)) {
1114 /* sNaN comparison */
8e703949 1115 fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN |
bd23cd45
BS		 1116 POWERPC_EXCP_FP_VXVC);
1117 } else {
1118 /* qNaN comparison */
8e703949 1119 fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXVC);
bd23cd45
BS		 1120 }
1121 }
1122}
1123
1124/* Single-precision floating-point conversions */
8e703949 1125static inline uint32_t efscfsi(CPUPPCState *env, uint32_t val)
bd23cd45
BS		 1126{
1127 CPU_FloatU u;
1128
1129 u.f = int32_to_float32(val, &env->vec_status);
1130
1131 return u.l;
1132}
1133
8e703949 1134static inline uint32_t efscfui(CPUPPCState *env, uint32_t val)
bd23cd45
BS		 1135{
1136 CPU_FloatU u;
1137
1138 u.f = uint32_to_float32(val, &env->vec_status);
1139
1140 return u.l;
1141}
1142
8e703949 1143static inline int32_t efsctsi(CPUPPCState *env, uint32_t val)
bd23cd45
BS		 1144{
1145 CPU_FloatU u;
1146
1147 u.l = val;
1148 /* NaN are not treated the same way IEEE 754 does */
1149 if (unlikely(float32_is_quiet_nan(u.f))) {
1150 return 0;
1151 }
1152
1153 return float32_to_int32(u.f, &env->vec_status);
1154}
1155
8e703949 1156static inline uint32_t efsctui(CPUPPCState *env, uint32_t val)
bd23cd45
BS		 1157{
1158 CPU_FloatU u;
1159
1160 u.l = val;
1161 /* NaN are not treated the same way IEEE 754 does */
1162 if (unlikely(float32_is_quiet_nan(u.f))) {
1163 return 0;
1164 }
1165
1166 return float32_to_uint32(u.f, &env->vec_status);
1167}
1168
8e703949 1169static inline uint32_t efsctsiz(CPUPPCState *env, uint32_t val)
bd23cd45
BS		 1170{
1171 CPU_FloatU u;
1172
1173 u.l = val;
1174 /* NaN are not treated the same way IEEE 754 does */
1175 if (unlikely(float32_is_quiet_nan(u.f))) {
1176 return 0;
1177 }
1178
1179 return float32_to_int32_round_to_zero(u.f, &env->vec_status);
1180}
1181
8e703949 1182static inline uint32_t efsctuiz(CPUPPCState *env, uint32_t val)
bd23cd45
BS		 1183{
1184 CPU_FloatU u;
1185
1186 u.l = val;
1187 /* NaN are not treated the same way IEEE 754 does */
1188 if (unlikely(float32_is_quiet_nan(u.f))) {
1189 return 0;
1190 }
1191
1192 return float32_to_uint32_round_to_zero(u.f, &env->vec_status);
1193}
1194
8e703949 1195static inline uint32_t efscfsf(CPUPPCState *env, uint32_t val)
bd23cd45
BS		 1196{
1197 CPU_FloatU u;
1198 float32 tmp;
1199
1200 u.f = int32_to_float32(val, &env->vec_status);
1201 tmp = int64_to_float32(1ULL << 32, &env->vec_status);
1202 u.f = float32_div(u.f, tmp, &env->vec_status);
1203
1204 return u.l;
1205}
1206
8e703949 1207static inline uint32_t efscfuf(CPUPPCState *env, uint32_t val)
bd23cd45
BS		 1208{
1209 CPU_FloatU u;
1210 float32 tmp;
1211
1212 u.f = uint32_to_float32(val, &env->vec_status);
1213 tmp = uint64_to_float32(1ULL << 32, &env->vec_status);
1214 u.f = float32_div(u.f, tmp, &env->vec_status);
1215
1216 return u.l;
1217}
1218
8e703949 1219static inline uint32_t efsctsf(CPUPPCState *env, uint32_t val)
bd23cd45
BS		 1220{
1221 CPU_FloatU u;
1222 float32 tmp;
1223
1224 u.l = val;
1225 /* NaN are not treated the same way IEEE 754 does */
1226 if (unlikely(float32_is_quiet_nan(u.f))) {
1227 return 0;
1228 }
1229 tmp = uint64_to_float32(1ULL << 32, &env->vec_status);
1230 u.f = float32_mul(u.f, tmp, &env->vec_status);
1231
1232 return float32_to_int32(u.f, &env->vec_status);
1233}
1234
8e703949 1235static inline uint32_t efsctuf(CPUPPCState *env, uint32_t val)
bd23cd45
BS		 1236{
1237 CPU_FloatU u;
1238 float32 tmp;
1239
1240 u.l = val;
1241 /* NaN are not treated the same way IEEE 754 does */
1242 if (unlikely(float32_is_quiet_nan(u.f))) {
1243 return 0;
1244 }
1245 tmp = uint64_to_float32(1ULL << 32, &env->vec_status);
1246 u.f = float32_mul(u.f, tmp, &env->vec_status);
1247
1248 return float32_to_uint32(u.f, &env->vec_status);
1249}
1250
8e703949
BS		 1251#define HELPER_SPE_SINGLE_CONV(name) \
1252 uint32_t helper_e##name(CPUPPCState *env, uint32_t val) \
1253 { \
1254 return e##name(env, val); \
bd23cd45
BS		 1255 }
1256/* efscfsi */
1257HELPER_SPE_SINGLE_CONV(fscfsi);
1258/* efscfui */
1259HELPER_SPE_SINGLE_CONV(fscfui);
1260/* efscfuf */
1261HELPER_SPE_SINGLE_CONV(fscfuf);
1262/* efscfsf */
1263HELPER_SPE_SINGLE_CONV(fscfsf);
1264/* efsctsi */
1265HELPER_SPE_SINGLE_CONV(fsctsi);
1266/* efsctui */
1267HELPER_SPE_SINGLE_CONV(fsctui);
1268/* efsctsiz */
1269HELPER_SPE_SINGLE_CONV(fsctsiz);
1270/* efsctuiz */
1271HELPER_SPE_SINGLE_CONV(fsctuiz);
1272/* efsctsf */
1273HELPER_SPE_SINGLE_CONV(fsctsf);
1274/* efsctuf */
1275HELPER_SPE_SINGLE_CONV(fsctuf);
1276
8e703949
BS		 1277#define HELPER_SPE_VECTOR_CONV(name) \
1278 uint64_t helper_ev##name(CPUPPCState *env, uint64_t val) \
1279 { \
1280 return ((uint64_t)e##name(env, val >> 32) << 32) | \
1281 (uint64_t)e##name(env, val); \
bd23cd45
BS		 1282 }
1283/* evfscfsi */
1284HELPER_SPE_VECTOR_CONV(fscfsi);
1285/* evfscfui */
1286HELPER_SPE_VECTOR_CONV(fscfui);
1287/* evfscfuf */
1288HELPER_SPE_VECTOR_CONV(fscfuf);
1289/* evfscfsf */
1290HELPER_SPE_VECTOR_CONV(fscfsf);
1291/* evfsctsi */
1292HELPER_SPE_VECTOR_CONV(fsctsi);
1293/* evfsctui */
1294HELPER_SPE_VECTOR_CONV(fsctui);
1295/* evfsctsiz */
1296HELPER_SPE_VECTOR_CONV(fsctsiz);
1297/* evfsctuiz */
1298HELPER_SPE_VECTOR_CONV(fsctuiz);
1299/* evfsctsf */
1300HELPER_SPE_VECTOR_CONV(fsctsf);
1301/* evfsctuf */
1302HELPER_SPE_VECTOR_CONV(fsctuf);
1303
1304/* Single-precision floating-point arithmetic */
8e703949 1305static inline uint32_t efsadd(CPUPPCState *env, uint32_t op1, uint32_t op2)
bd23cd45
BS		 1306{
1307 CPU_FloatU u1, u2;
1308
1309 u1.l = op1;
1310 u2.l = op2;
1311 u1.f = float32_add(u1.f, u2.f, &env->vec_status);
1312 return u1.l;
1313}
1314
8e703949 1315static inline uint32_t efssub(CPUPPCState *env, uint32_t op1, uint32_t op2)
bd23cd45
BS		 1316{
1317 CPU_FloatU u1, u2;
1318
1319 u1.l = op1;
1320 u2.l = op2;
1321 u1.f = float32_sub(u1.f, u2.f, &env->vec_status);
1322 return u1.l;
1323}
1324
8e703949 1325static inline uint32_t efsmul(CPUPPCState *env, uint32_t op1, uint32_t op2)
bd23cd45
BS		 1326{
1327 CPU_FloatU u1, u2;
1328
1329 u1.l = op1;
1330 u2.l = op2;
1331 u1.f = float32_mul(u1.f, u2.f, &env->vec_status);
1332 return u1.l;
1333}
1334
8e703949 1335static inline uint32_t efsdiv(CPUPPCState *env, uint32_t op1, uint32_t op2)
bd23cd45
BS		 1336{
1337 CPU_FloatU u1, u2;
1338
1339 u1.l = op1;
1340 u2.l = op2;
1341 u1.f = float32_div(u1.f, u2.f, &env->vec_status);
1342 return u1.l;
1343}
1344
8e703949
BS		 1345#define HELPER_SPE_SINGLE_ARITH(name) \
1346 uint32_t helper_e##name(CPUPPCState *env, uint32_t op1, uint32_t op2) \
1347 { \
1348 return e##name(env, op1, op2); \
bd23cd45
BS		 1349 }
1350/* efsadd */
1351HELPER_SPE_SINGLE_ARITH(fsadd);
1352/* efssub */
1353HELPER_SPE_SINGLE_ARITH(fssub);
1354/* efsmul */
1355HELPER_SPE_SINGLE_ARITH(fsmul);
1356/* efsdiv */
1357HELPER_SPE_SINGLE_ARITH(fsdiv);
1358
1359#define HELPER_SPE_VECTOR_ARITH(name) \
8e703949 1360 uint64_t helper_ev##name(CPUPPCState *env, uint64_t op1, uint64_t op2) \
bd23cd45 1361 { \
8e703949
BS		 1362 return ((uint64_t)e##name(env, op1 >> 32, op2 >> 32) << 32) | \
1363 (uint64_t)e##name(env, op1, op2); \
bd23cd45
BS		 1364 }
1365/* evfsadd */
1366HELPER_SPE_VECTOR_ARITH(fsadd);
1367/* evfssub */
1368HELPER_SPE_VECTOR_ARITH(fssub);
1369/* evfsmul */
1370HELPER_SPE_VECTOR_ARITH(fsmul);
1371/* evfsdiv */
1372HELPER_SPE_VECTOR_ARITH(fsdiv);
1373
1374/* Single-precision floating-point comparisons */
8e703949 1375static inline uint32_t efscmplt(CPUPPCState *env, uint32_t op1, uint32_t op2)
bd23cd45
BS		 1376{
1377 CPU_FloatU u1, u2;
1378
1379 u1.l = op1;
1380 u2.l = op2;
1381 return float32_lt(u1.f, u2.f, &env->vec_status) ? 4 : 0;
1382}
1383
8e703949 1384static inline uint32_t efscmpgt(CPUPPCState *env, uint32_t op1, uint32_t op2)
bd23cd45
BS		 1385{
1386 CPU_FloatU u1, u2;
1387
1388 u1.l = op1;
1389 u2.l = op2;
1390 return float32_le(u1.f, u2.f, &env->vec_status) ? 0 : 4;
1391}
1392
8e703949 1393static inline uint32_t efscmpeq(CPUPPCState *env, uint32_t op1, uint32_t op2)
bd23cd45
BS		 1394{
1395 CPU_FloatU u1, u2;
1396
1397 u1.l = op1;
1398 u2.l = op2;
1399 return float32_eq(u1.f, u2.f, &env->vec_status) ? 4 : 0;
1400}
1401
8e703949 1402static inline uint32_t efststlt(CPUPPCState *env, uint32_t op1, uint32_t op2)
bd23cd45
BS		 1403{
1404 /* XXX: TODO: ignore special values (NaN, infinites, ...) */
8e703949 1405 return efscmplt(env, op1, op2);
bd23cd45
BS		 1406}
1407
8e703949 1408static inline uint32_t efststgt(CPUPPCState *env, uint32_t op1, uint32_t op2)
bd23cd45
BS		 1409{
1410 /* XXX: TODO: ignore special values (NaN, infinites, ...) */
8e703949 1411 return efscmpgt(env, op1, op2);
bd23cd45
BS		 1412}
1413
8e703949 1414static inline uint32_t efststeq(CPUPPCState *env, uint32_t op1, uint32_t op2)
bd23cd45
BS		 1415{
1416 /* XXX: TODO: ignore special values (NaN, infinites, ...) */
8e703949 1417 return efscmpeq(env, op1, op2);
bd23cd45
BS		 1418}
1419
8e703949
BS		 1420#define HELPER_SINGLE_SPE_CMP(name) \
1421 uint32_t helper_e##name(CPUPPCState *env, uint32_t op1, uint32_t op2) \
1422 { \
1423 return e##name(env, op1, op2) << 2; \
bd23cd45
BS		 1424 }
1425/* efststlt */
1426HELPER_SINGLE_SPE_CMP(fststlt);
1427/* efststgt */
1428HELPER_SINGLE_SPE_CMP(fststgt);
1429/* efststeq */
1430HELPER_SINGLE_SPE_CMP(fststeq);
1431/* efscmplt */
1432HELPER_SINGLE_SPE_CMP(fscmplt);
1433/* efscmpgt */
1434HELPER_SINGLE_SPE_CMP(fscmpgt);
1435/* efscmpeq */
1436HELPER_SINGLE_SPE_CMP(fscmpeq);
1437
1438static inline uint32_t evcmp_merge(int t0, int t1)
1439{
1440 return (t0 << 3) | (t1 << 2) | ((t0 | t1) << 1) | (t0 & t1);
1441}
1442
1443#define HELPER_VECTOR_SPE_CMP(name) \
8e703949 1444 uint32_t helper_ev##name(CPUPPCState *env, uint64_t op1, uint64_t op2) \
bd23cd45 1445 { \
8e703949
BS		 1446 return evcmp_merge(e##name(env, op1 >> 32, op2 >> 32), \
1447 e##name(env, op1, op2)); \
bd23cd45
BS		 1448 }
1449/* evfststlt */
1450HELPER_VECTOR_SPE_CMP(fststlt);
1451/* evfststgt */
1452HELPER_VECTOR_SPE_CMP(fststgt);
1453/* evfststeq */
1454HELPER_VECTOR_SPE_CMP(fststeq);
1455/* evfscmplt */
1456HELPER_VECTOR_SPE_CMP(fscmplt);
1457/* evfscmpgt */
1458HELPER_VECTOR_SPE_CMP(fscmpgt);
1459/* evfscmpeq */
1460HELPER_VECTOR_SPE_CMP(fscmpeq);
1461
1462/* Double-precision floating-point conversion */
8e703949 1463uint64_t helper_efdcfsi(CPUPPCState *env, uint32_t val)
bd23cd45
BS		 1464{
1465 CPU_DoubleU u;
1466
1467 u.d = int32_to_float64(val, &env->vec_status);
1468
1469 return u.ll;
1470}
1471
8e703949 1472uint64_t helper_efdcfsid(CPUPPCState *env, uint64_t val)
bd23cd45
BS		 1473{
1474 CPU_DoubleU u;
1475
1476 u.d = int64_to_float64(val, &env->vec_status);
1477
1478 return u.ll;
1479}
1480
8e703949 1481uint64_t helper_efdcfui(CPUPPCState *env, uint32_t val)
bd23cd45
BS		 1482{
1483 CPU_DoubleU u;
1484
1485 u.d = uint32_to_float64(val, &env->vec_status);
1486
1487 return u.ll;
1488}
1489
8e703949 1490uint64_t helper_efdcfuid(CPUPPCState *env, uint64_t val)
bd23cd45
BS		 1491{
1492 CPU_DoubleU u;
1493
1494 u.d = uint64_to_float64(val, &env->vec_status);
1495
1496 return u.ll;
1497}
1498
8e703949 1499uint32_t helper_efdctsi(CPUPPCState *env, uint64_t val)
bd23cd45
BS		 1500{
1501 CPU_DoubleU u;
1502
1503 u.ll = val;
1504 /* NaN are not treated the same way IEEE 754 does */
1505 if (unlikely(float64_is_any_nan(u.d))) {
1506 return 0;
1507 }
1508
1509 return float64_to_int32(u.d, &env->vec_status);
1510}
1511
8e703949 1512uint32_t helper_efdctui(CPUPPCState *env, uint64_t val)
bd23cd45
BS		 1513{
1514 CPU_DoubleU u;
1515
1516 u.ll = val;
1517 /* NaN are not treated the same way IEEE 754 does */
1518 if (unlikely(float64_is_any_nan(u.d))) {
1519 return 0;
1520 }
1521
1522 return float64_to_uint32(u.d, &env->vec_status);
1523}
1524
8e703949 1525uint32_t helper_efdctsiz(CPUPPCState *env, uint64_t val)
bd23cd45
BS		 1526{
1527 CPU_DoubleU u;
1528
1529 u.ll = val;
1530 /* NaN are not treated the same way IEEE 754 does */
1531 if (unlikely(float64_is_any_nan(u.d))) {
1532 return 0;
1533 }
1534
1535 return float64_to_int32_round_to_zero(u.d, &env->vec_status);
1536}
1537
8e703949 1538uint64_t helper_efdctsidz(CPUPPCState *env, uint64_t val)
bd23cd45
BS		 1539{
1540 CPU_DoubleU u;
1541
1542 u.ll = val;
1543 /* NaN are not treated the same way IEEE 754 does */
1544 if (unlikely(float64_is_any_nan(u.d))) {
1545 return 0;
1546 }
1547
1548 return float64_to_int64_round_to_zero(u.d, &env->vec_status);
1549}
1550
8e703949 1551uint32_t helper_efdctuiz(CPUPPCState *env, uint64_t val)
bd23cd45
BS		 1552{
1553 CPU_DoubleU u;
1554
1555 u.ll = val;
1556 /* NaN are not treated the same way IEEE 754 does */
1557 if (unlikely(float64_is_any_nan(u.d))) {
1558 return 0;
1559 }
1560
1561 return float64_to_uint32_round_to_zero(u.d, &env->vec_status);
1562}
1563
8e703949 1564uint64_t helper_efdctuidz(CPUPPCState *env, uint64_t val)
bd23cd45
BS		 1565{
1566 CPU_DoubleU u;
1567
1568 u.ll = val;
1569 /* NaN are not treated the same way IEEE 754 does */
1570 if (unlikely(float64_is_any_nan(u.d))) {
1571 return 0;
1572 }
1573
1574 return float64_to_uint64_round_to_zero(u.d, &env->vec_status);
1575}
1576
8e703949 1577uint64_t helper_efdcfsf(CPUPPCState *env, uint32_t val)
bd23cd45
BS		 1578{
1579 CPU_DoubleU u;
1580 float64 tmp;
1581
1582 u.d = int32_to_float64(val, &env->vec_status);
1583 tmp = int64_to_float64(1ULL << 32, &env->vec_status);
1584 u.d = float64_div(u.d, tmp, &env->vec_status);
1585
1586 return u.ll;
1587}
1588
8e703949 1589uint64_t helper_efdcfuf(CPUPPCState *env, uint32_t val)
bd23cd45
BS		 1590{
1591 CPU_DoubleU u;
1592 float64 tmp;
1593
1594 u.d = uint32_to_float64(val, &env->vec_status);
1595 tmp = int64_to_float64(1ULL << 32, &env->vec_status);
1596 u.d = float64_div(u.d, tmp, &env->vec_status);
1597
1598 return u.ll;
1599}
1600
8e703949 1601uint32_t helper_efdctsf(CPUPPCState *env, uint64_t val)
bd23cd45
BS		 1602{
1603 CPU_DoubleU u;
1604 float64 tmp;
1605
1606 u.ll = val;
1607 /* NaN are not treated the same way IEEE 754 does */
1608 if (unlikely(float64_is_any_nan(u.d))) {
1609 return 0;
1610 }
1611 tmp = uint64_to_float64(1ULL << 32, &env->vec_status);
1612 u.d = float64_mul(u.d, tmp, &env->vec_status);
1613
1614 return float64_to_int32(u.d, &env->vec_status);
1615}
1616
8e703949 1617uint32_t helper_efdctuf(CPUPPCState *env, uint64_t val)
bd23cd45
BS		 1618{
1619 CPU_DoubleU u;
1620 float64 tmp;
1621
1622 u.ll = val;
1623 /* NaN are not treated the same way IEEE 754 does */
1624 if (unlikely(float64_is_any_nan(u.d))) {
1625 return 0;
1626 }
1627 tmp = uint64_to_float64(1ULL << 32, &env->vec_status);
1628 u.d = float64_mul(u.d, tmp, &env->vec_status);
1629
1630 return float64_to_uint32(u.d, &env->vec_status);
1631}
1632
8e703949 1633uint32_t helper_efscfd(CPUPPCState *env, uint64_t val)
bd23cd45
BS		 1634{
1635 CPU_DoubleU u1;
1636 CPU_FloatU u2;
1637
1638 u1.ll = val;
1639 u2.f = float64_to_float32(u1.d, &env->vec_status);
1640
1641 return u2.l;
1642}
1643
8e703949 1644uint64_t helper_efdcfs(CPUPPCState *env, uint32_t val)
bd23cd45
BS		 1645{
1646 CPU_DoubleU u2;
1647 CPU_FloatU u1;
1648
1649 u1.l = val;
1650 u2.d = float32_to_float64(u1.f, &env->vec_status);
1651
1652 return u2.ll;
1653}
1654
1655/* Double precision fixed-point arithmetic */
8e703949 1656uint64_t helper_efdadd(CPUPPCState *env, uint64_t op1, uint64_t op2)
bd23cd45
BS		 1657{
1658 CPU_DoubleU u1, u2;
1659
1660 u1.ll = op1;
1661 u2.ll = op2;
1662 u1.d = float64_add(u1.d, u2.d, &env->vec_status);
1663 return u1.ll;
1664}
1665
8e703949 1666uint64_t helper_efdsub(CPUPPCState *env, uint64_t op1, uint64_t op2)
bd23cd45
BS		 1667{
1668 CPU_DoubleU u1, u2;
1669
1670 u1.ll = op1;
1671 u2.ll = op2;
1672 u1.d = float64_sub(u1.d, u2.d, &env->vec_status);
1673 return u1.ll;
1674}
1675
8e703949 1676uint64_t helper_efdmul(CPUPPCState *env, uint64_t op1, uint64_t op2)
bd23cd45
BS		 1677{
1678 CPU_DoubleU u1, u2;
1679
1680 u1.ll = op1;
1681 u2.ll = op2;
1682 u1.d = float64_mul(u1.d, u2.d, &env->vec_status);
1683 return u1.ll;
1684}
1685
8e703949 1686uint64_t helper_efddiv(CPUPPCState *env, uint64_t op1, uint64_t op2)
bd23cd45
BS		 1687{
1688 CPU_DoubleU u1, u2;
1689
1690 u1.ll = op1;
1691 u2.ll = op2;
1692 u1.d = float64_div(u1.d, u2.d, &env->vec_status);
1693 return u1.ll;
1694}
1695
1696/* Double precision floating point helpers */
8e703949 1697uint32_t helper_efdtstlt(CPUPPCState *env, uint64_t op1, uint64_t op2)
bd23cd45
BS		 1698{
1699 CPU_DoubleU u1, u2;
1700
1701 u1.ll = op1;
1702 u2.ll = op2;
1703 return float64_lt(u1.d, u2.d, &env->vec_status) ? 4 : 0;
1704}
1705
8e703949 1706uint32_t helper_efdtstgt(CPUPPCState *env, uint64_t op1, uint64_t op2)
bd23cd45
BS		 1707{
1708 CPU_DoubleU u1, u2;
1709
1710 u1.ll = op1;
1711 u2.ll = op2;
1712 return float64_le(u1.d, u2.d, &env->vec_status) ? 0 : 4;
1713}
1714
8e703949 1715uint32_t helper_efdtsteq(CPUPPCState *env, uint64_t op1, uint64_t op2)
bd23cd45
BS		 1716{
1717 CPU_DoubleU u1, u2;
1718
1719 u1.ll = op1;
1720 u2.ll = op2;
1721 return float64_eq_quiet(u1.d, u2.d, &env->vec_status) ? 4 : 0;
1722}
1723
8e703949 1724uint32_t helper_efdcmplt(CPUPPCState *env, uint64_t op1, uint64_t op2)
bd23cd45
BS		 1725{
1726 /* XXX: TODO: test special values (NaN, infinites, ...) */
8e703949 1727 return helper_efdtstlt(env, op1, op2);
bd23cd45
BS		 1728}
1729
8e703949 1730uint32_t helper_efdcmpgt(CPUPPCState *env, uint64_t op1, uint64_t op2)
bd23cd45
BS		 1731{
1732 /* XXX: TODO: test special values (NaN, infinites, ...) */
8e703949 1733 return helper_efdtstgt(env, op1, op2);
bd23cd45
BS		 1734}
1735
8e703949 1736uint32_t helper_efdcmpeq(CPUPPCState *env, uint64_t op1, uint64_t op2)
bd23cd45
BS		 1737{
1738 /* XXX: TODO: test special values (NaN, infinites, ...) */
8e703949 1739 return helper_efdtsteq(env, op1, op2);
bd23cd45 1740}
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