2 * S/390 FPU helper routines
4 * Copyright (c) 2009 Ulrich Hecht
5 * Copyright (c) 2009 Alexander Graf
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
21 #include "qemu/osdep.h"
24 #include "tcg_s390x.h"
25 #include "exec/exec-all.h"
26 #include "exec/cpu_ldst.h"
27 #include "exec/helper-proto.h"
28 #include "fpu/softfloat.h"
30 /* #define DEBUG_HELPER */
32 #define HELPER_LOG(x...) qemu_log(x)
34 #define HELPER_LOG(x...)
37 #define RET128(F) (env->retxl = F.low, F.high)
39 #define convert_bit(mask, from, to) \
41 ? (mask / (from / to)) & to \
42 : (mask & from) * (to / from))
44 /* Should be called after any operation that may raise IEEE exceptions. */
45 static void handle_exceptions(CPUS390XState *env, uintptr_t retaddr)
47 unsigned s390_exc, qemu_exc;
49 /* Get the exceptions raised by the current operation. Reset the
50 fpu_status contents so that the next operation has a clean slate. */
51 qemu_exc = env->fpu_status.float_exception_flags;
55 env->fpu_status.float_exception_flags = 0;
57 /* Convert softfloat exception bits to s390 exception bits. */
59 s390_exc |= convert_bit(qemu_exc, float_flag_invalid, 0x80);
60 s390_exc |= convert_bit(qemu_exc, float_flag_divbyzero, 0x40);
61 s390_exc |= convert_bit(qemu_exc, float_flag_overflow, 0x20);
62 s390_exc |= convert_bit(qemu_exc, float_flag_underflow, 0x10);
63 s390_exc |= convert_bit(qemu_exc, float_flag_inexact, 0x08);
65 /* Install the exceptions that we raised. */
66 env->fpc |= s390_exc << 16;
68 /* Send signals for enabled exceptions. */
69 s390_exc &= env->fpc >> 24;
71 tcg_s390_data_exception(env, s390_exc, retaddr);
75 static inline int float_comp_to_cc(CPUS390XState *env, int float_compare)
77 S390CPU *cpu = s390_env_get_cpu(env);
79 switch (float_compare) {
80 case float_relation_equal:
82 case float_relation_less:
84 case float_relation_greater:
86 case float_relation_unordered:
89 cpu_abort(CPU(cpu), "unknown return value for float compare\n");
93 /* condition codes for unary FP ops */
94 uint32_t set_cc_nz_f32(float32 v)
96 if (float32_is_any_nan(v)) {
98 } else if (float32_is_zero(v)) {
100 } else if (float32_is_neg(v)) {
107 uint32_t set_cc_nz_f64(float64 v)
109 if (float64_is_any_nan(v)) {
111 } else if (float64_is_zero(v)) {
113 } else if (float64_is_neg(v)) {
120 uint32_t set_cc_nz_f128(float128 v)
122 if (float128_is_any_nan(v)) {
124 } else if (float128_is_zero(v)) {
126 } else if (float128_is_neg(v)) {
133 /* 32-bit FP addition */
134 uint64_t HELPER(aeb)(CPUS390XState *env, uint64_t f1, uint64_t f2)
136 float32 ret = float32_add(f1, f2, &env->fpu_status);
137 handle_exceptions(env, GETPC());
141 /* 64-bit FP addition */
142 uint64_t HELPER(adb)(CPUS390XState *env, uint64_t f1, uint64_t f2)
144 float64 ret = float64_add(f1, f2, &env->fpu_status);
145 handle_exceptions(env, GETPC());
149 /* 128-bit FP addition */
150 uint64_t HELPER(axb)(CPUS390XState *env, uint64_t ah, uint64_t al,
151 uint64_t bh, uint64_t bl)
153 float128 ret = float128_add(make_float128(ah, al),
154 make_float128(bh, bl),
156 handle_exceptions(env, GETPC());
160 /* 32-bit FP subtraction */
161 uint64_t HELPER(seb)(CPUS390XState *env, uint64_t f1, uint64_t f2)
163 float32 ret = float32_sub(f1, f2, &env->fpu_status);
164 handle_exceptions(env, GETPC());
168 /* 64-bit FP subtraction */
169 uint64_t HELPER(sdb)(CPUS390XState *env, uint64_t f1, uint64_t f2)
171 float64 ret = float64_sub(f1, f2, &env->fpu_status);
172 handle_exceptions(env, GETPC());
176 /* 128-bit FP subtraction */
177 uint64_t HELPER(sxb)(CPUS390XState *env, uint64_t ah, uint64_t al,
178 uint64_t bh, uint64_t bl)
180 float128 ret = float128_sub(make_float128(ah, al),
181 make_float128(bh, bl),
183 handle_exceptions(env, GETPC());
187 /* 32-bit FP division */
188 uint64_t HELPER(deb)(CPUS390XState *env, uint64_t f1, uint64_t f2)
190 float32 ret = float32_div(f1, f2, &env->fpu_status);
191 handle_exceptions(env, GETPC());
195 /* 64-bit FP division */
196 uint64_t HELPER(ddb)(CPUS390XState *env, uint64_t f1, uint64_t f2)
198 float64 ret = float64_div(f1, f2, &env->fpu_status);
199 handle_exceptions(env, GETPC());
203 /* 128-bit FP division */
204 uint64_t HELPER(dxb)(CPUS390XState *env, uint64_t ah, uint64_t al,
205 uint64_t bh, uint64_t bl)
207 float128 ret = float128_div(make_float128(ah, al),
208 make_float128(bh, bl),
210 handle_exceptions(env, GETPC());
214 /* 32-bit FP multiplication */
215 uint64_t HELPER(meeb)(CPUS390XState *env, uint64_t f1, uint64_t f2)
217 float32 ret = float32_mul(f1, f2, &env->fpu_status);
218 handle_exceptions(env, GETPC());
222 /* 64-bit FP multiplication */
223 uint64_t HELPER(mdb)(CPUS390XState *env, uint64_t f1, uint64_t f2)
225 float64 ret = float64_mul(f1, f2, &env->fpu_status);
226 handle_exceptions(env, GETPC());
230 /* 64/32-bit FP multiplication */
231 uint64_t HELPER(mdeb)(CPUS390XState *env, uint64_t f1, uint64_t f2)
233 float64 ret = float32_to_float64(f2, &env->fpu_status);
234 ret = float64_mul(f1, ret, &env->fpu_status);
235 handle_exceptions(env, GETPC());
239 /* 128-bit FP multiplication */
240 uint64_t HELPER(mxb)(CPUS390XState *env, uint64_t ah, uint64_t al,
241 uint64_t bh, uint64_t bl)
243 float128 ret = float128_mul(make_float128(ah, al),
244 make_float128(bh, bl),
246 handle_exceptions(env, GETPC());
250 /* 128/64-bit FP multiplication */
251 uint64_t HELPER(mxdb)(CPUS390XState *env, uint64_t ah, uint64_t al,
254 float128 ret = float64_to_float128(f2, &env->fpu_status);
255 ret = float128_mul(make_float128(ah, al), ret, &env->fpu_status);
256 handle_exceptions(env, GETPC());
260 /* convert 32-bit float to 64-bit float */
261 uint64_t HELPER(ldeb)(CPUS390XState *env, uint64_t f2)
263 float64 ret = float32_to_float64(f2, &env->fpu_status);
264 handle_exceptions(env, GETPC());
268 /* convert 128-bit float to 64-bit float */
269 uint64_t HELPER(ldxb)(CPUS390XState *env, uint64_t ah, uint64_t al)
271 float64 ret = float128_to_float64(make_float128(ah, al), &env->fpu_status);
272 handle_exceptions(env, GETPC());
276 /* convert 64-bit float to 128-bit float */
277 uint64_t HELPER(lxdb)(CPUS390XState *env, uint64_t f2)
279 float128 ret = float64_to_float128(f2, &env->fpu_status);
280 handle_exceptions(env, GETPC());
284 /* convert 32-bit float to 128-bit float */
285 uint64_t HELPER(lxeb)(CPUS390XState *env, uint64_t f2)
287 float128 ret = float32_to_float128(f2, &env->fpu_status);
288 handle_exceptions(env, GETPC());
292 /* convert 64-bit float to 32-bit float */
293 uint64_t HELPER(ledb)(CPUS390XState *env, uint64_t f2)
295 float32 ret = float64_to_float32(f2, &env->fpu_status);
296 handle_exceptions(env, GETPC());
300 /* convert 128-bit float to 32-bit float */
301 uint64_t HELPER(lexb)(CPUS390XState *env, uint64_t ah, uint64_t al)
303 float32 ret = float128_to_float32(make_float128(ah, al), &env->fpu_status);
304 handle_exceptions(env, GETPC());
308 /* 32-bit FP compare */
309 uint32_t HELPER(ceb)(CPUS390XState *env, uint64_t f1, uint64_t f2)
311 int cmp = float32_compare_quiet(f1, f2, &env->fpu_status);
312 handle_exceptions(env, GETPC());
313 return float_comp_to_cc(env, cmp);
316 /* 64-bit FP compare */
317 uint32_t HELPER(cdb)(CPUS390XState *env, uint64_t f1, uint64_t f2)
319 int cmp = float64_compare_quiet(f1, f2, &env->fpu_status);
320 handle_exceptions(env, GETPC());
321 return float_comp_to_cc(env, cmp);
324 /* 128-bit FP compare */
325 uint32_t HELPER(cxb)(CPUS390XState *env, uint64_t ah, uint64_t al,
326 uint64_t bh, uint64_t bl)
328 int cmp = float128_compare_quiet(make_float128(ah, al),
329 make_float128(bh, bl),
331 handle_exceptions(env, GETPC());
332 return float_comp_to_cc(env, cmp);
335 static int swap_round_mode(CPUS390XState *env, int m3)
337 int ret = env->fpu_status.float_rounding_mode;
343 /* biased round no nearest */
345 /* round to nearest */
346 set_float_rounding_mode(float_round_nearest_even, &env->fpu_status);
350 set_float_rounding_mode(float_round_to_zero, &env->fpu_status);
354 set_float_rounding_mode(float_round_up, &env->fpu_status);
358 set_float_rounding_mode(float_round_down, &env->fpu_status);
364 /* convert 64-bit int to 32-bit float */
365 uint64_t HELPER(cegb)(CPUS390XState *env, int64_t v2, uint32_t m3)
367 int hold = swap_round_mode(env, m3);
368 float32 ret = int64_to_float32(v2, &env->fpu_status);
369 set_float_rounding_mode(hold, &env->fpu_status);
370 handle_exceptions(env, GETPC());
374 /* convert 64-bit int to 64-bit float */
375 uint64_t HELPER(cdgb)(CPUS390XState *env, int64_t v2, uint32_t m3)
377 int hold = swap_round_mode(env, m3);
378 float64 ret = int64_to_float64(v2, &env->fpu_status);
379 set_float_rounding_mode(hold, &env->fpu_status);
380 handle_exceptions(env, GETPC());
384 /* convert 64-bit int to 128-bit float */
385 uint64_t HELPER(cxgb)(CPUS390XState *env, int64_t v2, uint32_t m3)
387 int hold = swap_round_mode(env, m3);
388 float128 ret = int64_to_float128(v2, &env->fpu_status);
389 set_float_rounding_mode(hold, &env->fpu_status);
390 handle_exceptions(env, GETPC());
394 /* convert 64-bit uint to 32-bit float */
395 uint64_t HELPER(celgb)(CPUS390XState *env, uint64_t v2, uint32_t m3)
397 int hold = swap_round_mode(env, m3);
398 float32 ret = uint64_to_float32(v2, &env->fpu_status);
399 set_float_rounding_mode(hold, &env->fpu_status);
400 handle_exceptions(env, GETPC());
404 /* convert 64-bit uint to 64-bit float */
405 uint64_t HELPER(cdlgb)(CPUS390XState *env, uint64_t v2, uint32_t m3)
407 int hold = swap_round_mode(env, m3);
408 float64 ret = uint64_to_float64(v2, &env->fpu_status);
409 set_float_rounding_mode(hold, &env->fpu_status);
410 handle_exceptions(env, GETPC());
414 /* convert 64-bit uint to 128-bit float */
415 uint64_t HELPER(cxlgb)(CPUS390XState *env, uint64_t v2, uint32_t m3)
417 int hold = swap_round_mode(env, m3);
418 float128 ret = uint64_to_float128(v2, &env->fpu_status);
419 set_float_rounding_mode(hold, &env->fpu_status);
420 handle_exceptions(env, GETPC());
424 /* convert 32-bit float to 64-bit int */
425 uint64_t HELPER(cgeb)(CPUS390XState *env, uint64_t v2, uint32_t m3)
427 int hold = swap_round_mode(env, m3);
428 int64_t ret = float32_to_int64(v2, &env->fpu_status);
429 set_float_rounding_mode(hold, &env->fpu_status);
430 handle_exceptions(env, GETPC());
434 /* convert 64-bit float to 64-bit int */
435 uint64_t HELPER(cgdb)(CPUS390XState *env, uint64_t v2, uint32_t m3)
437 int hold = swap_round_mode(env, m3);
438 int64_t ret = float64_to_int64(v2, &env->fpu_status);
439 set_float_rounding_mode(hold, &env->fpu_status);
440 handle_exceptions(env, GETPC());
444 /* convert 128-bit float to 64-bit int */
445 uint64_t HELPER(cgxb)(CPUS390XState *env, uint64_t h, uint64_t l, uint32_t m3)
447 int hold = swap_round_mode(env, m3);
448 float128 v2 = make_float128(h, l);
449 int64_t ret = float128_to_int64(v2, &env->fpu_status);
450 set_float_rounding_mode(hold, &env->fpu_status);
451 handle_exceptions(env, GETPC());
455 /* convert 32-bit float to 32-bit int */
456 uint64_t HELPER(cfeb)(CPUS390XState *env, uint64_t v2, uint32_t m3)
458 int hold = swap_round_mode(env, m3);
459 int32_t ret = float32_to_int32(v2, &env->fpu_status);
460 set_float_rounding_mode(hold, &env->fpu_status);
461 handle_exceptions(env, GETPC());
465 /* convert 64-bit float to 32-bit int */
466 uint64_t HELPER(cfdb)(CPUS390XState *env, uint64_t v2, uint32_t m3)
468 int hold = swap_round_mode(env, m3);
469 int32_t ret = float64_to_int32(v2, &env->fpu_status);
470 set_float_rounding_mode(hold, &env->fpu_status);
471 handle_exceptions(env, GETPC());
475 /* convert 128-bit float to 32-bit int */
476 uint64_t HELPER(cfxb)(CPUS390XState *env, uint64_t h, uint64_t l, uint32_t m3)
478 int hold = swap_round_mode(env, m3);
479 float128 v2 = make_float128(h, l);
480 int32_t ret = float128_to_int32(v2, &env->fpu_status);
481 set_float_rounding_mode(hold, &env->fpu_status);
482 handle_exceptions(env, GETPC());
486 /* convert 32-bit float to 64-bit uint */
487 uint64_t HELPER(clgeb)(CPUS390XState *env, uint64_t v2, uint32_t m3)
489 int hold = swap_round_mode(env, m3);
491 v2 = float32_to_float64(v2, &env->fpu_status);
492 ret = float64_to_uint64(v2, &env->fpu_status);
493 set_float_rounding_mode(hold, &env->fpu_status);
494 handle_exceptions(env, GETPC());
498 /* convert 64-bit float to 64-bit uint */
499 uint64_t HELPER(clgdb)(CPUS390XState *env, uint64_t v2, uint32_t m3)
501 int hold = swap_round_mode(env, m3);
502 uint64_t ret = float64_to_uint64(v2, &env->fpu_status);
503 set_float_rounding_mode(hold, &env->fpu_status);
504 handle_exceptions(env, GETPC());
508 /* convert 128-bit float to 64-bit uint */
509 uint64_t HELPER(clgxb)(CPUS390XState *env, uint64_t h, uint64_t l, uint32_t m3)
511 int hold = swap_round_mode(env, m3);
512 float128 v2 = make_float128(h, l);
513 /* ??? Not 100% correct. */
514 uint64_t ret = float128_to_int64(v2, &env->fpu_status);
515 set_float_rounding_mode(hold, &env->fpu_status);
516 handle_exceptions(env, GETPC());
520 /* convert 32-bit float to 32-bit uint */
521 uint64_t HELPER(clfeb)(CPUS390XState *env, uint64_t v2, uint32_t m3)
523 int hold = swap_round_mode(env, m3);
524 uint32_t ret = float32_to_uint32(v2, &env->fpu_status);
525 set_float_rounding_mode(hold, &env->fpu_status);
526 handle_exceptions(env, GETPC());
530 /* convert 64-bit float to 32-bit uint */
531 uint64_t HELPER(clfdb)(CPUS390XState *env, uint64_t v2, uint32_t m3)
533 int hold = swap_round_mode(env, m3);
534 uint32_t ret = float64_to_uint32(v2, &env->fpu_status);
535 set_float_rounding_mode(hold, &env->fpu_status);
536 handle_exceptions(env, GETPC());
540 /* convert 128-bit float to 32-bit uint */
541 uint64_t HELPER(clfxb)(CPUS390XState *env, uint64_t h, uint64_t l, uint32_t m3)
543 int hold = swap_round_mode(env, m3);
544 float128 v2 = make_float128(h, l);
545 /* Not 100% correct. */
546 uint32_t ret = float128_to_int64(v2, &env->fpu_status);
547 set_float_rounding_mode(hold, &env->fpu_status);
548 handle_exceptions(env, GETPC());
552 /* round to integer 32-bit */
553 uint64_t HELPER(fieb)(CPUS390XState *env, uint64_t f2, uint32_t m3)
555 int hold = swap_round_mode(env, m3);
556 float32 ret = float32_round_to_int(f2, &env->fpu_status);
557 set_float_rounding_mode(hold, &env->fpu_status);
558 handle_exceptions(env, GETPC());
562 /* round to integer 64-bit */
563 uint64_t HELPER(fidb)(CPUS390XState *env, uint64_t f2, uint32_t m3)
565 int hold = swap_round_mode(env, m3);
566 float64 ret = float64_round_to_int(f2, &env->fpu_status);
567 set_float_rounding_mode(hold, &env->fpu_status);
568 handle_exceptions(env, GETPC());
572 /* round to integer 128-bit */
573 uint64_t HELPER(fixb)(CPUS390XState *env, uint64_t ah, uint64_t al, uint32_t m3)
575 int hold = swap_round_mode(env, m3);
576 float128 ret = float128_round_to_int(make_float128(ah, al),
578 set_float_rounding_mode(hold, &env->fpu_status);
579 handle_exceptions(env, GETPC());
583 /* 32-bit FP compare and signal */
584 uint32_t HELPER(keb)(CPUS390XState *env, uint64_t f1, uint64_t f2)
586 int cmp = float32_compare(f1, f2, &env->fpu_status);
587 handle_exceptions(env, GETPC());
588 return float_comp_to_cc(env, cmp);
591 /* 64-bit FP compare and signal */
592 uint32_t HELPER(kdb)(CPUS390XState *env, uint64_t f1, uint64_t f2)
594 int cmp = float64_compare(f1, f2, &env->fpu_status);
595 handle_exceptions(env, GETPC());
596 return float_comp_to_cc(env, cmp);
599 /* 128-bit FP compare and signal */
600 uint32_t HELPER(kxb)(CPUS390XState *env, uint64_t ah, uint64_t al,
601 uint64_t bh, uint64_t bl)
603 int cmp = float128_compare(make_float128(ah, al),
604 make_float128(bh, bl),
606 handle_exceptions(env, GETPC());
607 return float_comp_to_cc(env, cmp);
610 /* 32-bit FP multiply and add */
611 uint64_t HELPER(maeb)(CPUS390XState *env, uint64_t f1,
612 uint64_t f2, uint64_t f3)
614 float32 ret = float32_muladd(f2, f3, f1, 0, &env->fpu_status);
615 handle_exceptions(env, GETPC());
619 /* 64-bit FP multiply and add */
620 uint64_t HELPER(madb)(CPUS390XState *env, uint64_t f1,
621 uint64_t f2, uint64_t f3)
623 float64 ret = float64_muladd(f2, f3, f1, 0, &env->fpu_status);
624 handle_exceptions(env, GETPC());
628 /* 32-bit FP multiply and subtract */
629 uint64_t HELPER(mseb)(CPUS390XState *env, uint64_t f1,
630 uint64_t f2, uint64_t f3)
632 float32 ret = float32_muladd(f2, f3, f1, float_muladd_negate_c,
634 handle_exceptions(env, GETPC());
638 /* 64-bit FP multiply and subtract */
639 uint64_t HELPER(msdb)(CPUS390XState *env, uint64_t f1,
640 uint64_t f2, uint64_t f3)
642 float64 ret = float64_muladd(f2, f3, f1, float_muladd_negate_c,
644 handle_exceptions(env, GETPC());
648 /* The rightmost bit has the number 11. */
649 static inline uint16_t dcmask(int bit, bool neg)
651 return 1 << (11 - bit - neg);
654 #define DEF_FLOAT_DCMASK(_TYPE) \
655 static uint16_t _TYPE##_dcmask(CPUS390XState *env, _TYPE f1) \
657 const bool neg = _TYPE##_is_neg(f1); \
659 /* Sorted by most common cases - only one class is possible */ \
660 if (_TYPE##_is_normal(f1)) { \
661 return dcmask(2, neg); \
662 } else if (_TYPE##_is_zero(f1)) { \
663 return dcmask(0, neg); \
664 } else if (_TYPE##_is_denormal(f1)) { \
665 return dcmask(4, neg); \
666 } else if (_TYPE##_is_infinity(f1)) { \
667 return dcmask(6, neg); \
668 } else if (_TYPE##_is_quiet_nan(f1, &env->fpu_status)) { \
669 return dcmask(8, neg); \
671 /* signaling nan, as last remaining case */ \
672 return dcmask(10, neg); \
674 DEF_FLOAT_DCMASK(float32)
675 DEF_FLOAT_DCMASK(float64)
676 DEF_FLOAT_DCMASK(float128)
678 /* test data class 32-bit */
679 uint32_t HELPER(tceb)(CPUS390XState *env, uint64_t f1, uint64_t m2)
681 return (m2 & float32_dcmask(env, f1)) != 0;
684 /* test data class 64-bit */
685 uint32_t HELPER(tcdb)(CPUS390XState *env, uint64_t v1, uint64_t m2)
687 return (m2 & float64_dcmask(env, v1)) != 0;
690 /* test data class 128-bit */
691 uint32_t HELPER(tcxb)(CPUS390XState *env, uint64_t ah, uint64_t al, uint64_t m2)
693 return (m2 & float128_dcmask(env, make_float128(ah, al))) != 0;
696 /* square root 32-bit */
697 uint64_t HELPER(sqeb)(CPUS390XState *env, uint64_t f2)
699 float32 ret = float32_sqrt(f2, &env->fpu_status);
700 handle_exceptions(env, GETPC());
704 /* square root 64-bit */
705 uint64_t HELPER(sqdb)(CPUS390XState *env, uint64_t f2)
707 float64 ret = float64_sqrt(f2, &env->fpu_status);
708 handle_exceptions(env, GETPC());
712 /* square root 128-bit */
713 uint64_t HELPER(sqxb)(CPUS390XState *env, uint64_t ah, uint64_t al)
715 float128 ret = float128_sqrt(make_float128(ah, al), &env->fpu_status);
716 handle_exceptions(env, GETPC());
720 static const int fpc_to_rnd[4] = {
721 float_round_nearest_even,
728 void HELPER(sfpc)(CPUS390XState *env, uint64_t fpc)
730 /* Install everything in the main FPC. */
733 /* Install the rounding mode in the shadow fpu_status. */
734 set_float_rounding_mode(fpc_to_rnd[fpc & 3], &env->fpu_status);
737 /* set fpc and signal */
738 void HELPER(sfas)(CPUS390XState *env, uint64_t val)
740 uint32_t signalling = env->fpc;
741 uint32_t source = val;
744 /* The contents of the source operand are placed in the FPC register;
745 then the flags in the FPC register are set to the logical OR of the
746 signalling flags and the source flags. */
747 env->fpc = source | (signalling & 0x00ff0000);
748 set_float_rounding_mode(fpc_to_rnd[source & 3], &env->fpu_status);
750 /* If any signalling flag is 1 and the corresponding source mask
751 is also 1, a simulated-iee-exception trap occurs. */
752 s390_exc = (signalling >> 16) & (source >> 24);
754 tcg_s390_data_exception(env, s390_exc | 3, GETPC());