2 * PowerPC emulation helpers for qemu.
4 * Copyright (c) 2003-2007 Jocelyn Mayer
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.
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.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA
22 #include "host-utils.h"
25 #include "helper_regs.h"
28 //#define DEBUG_EXCEPTIONS
29 //#define DEBUG_SOFTWARE_TLB
31 /*****************************************************************************/
32 /* Exceptions processing helpers */
34 void helper_raise_exception_err (uint32_t exception
, uint32_t error_code
)
37 printf("Raise exception %3x code : %d\n", exception
, error_code
);
39 env
->exception_index
= exception
;
40 env
->error_code
= error_code
;
44 void helper_raise_exception (uint32_t exception
)
46 helper_raise_exception_err(exception
, 0);
49 /*****************************************************************************/
50 /* Registers load and stores */
51 target_ulong
helper_load_cr (void)
53 return (env
->crf
[0] << 28) |
63 void helper_store_cr (target_ulong val
, uint32_t mask
)
67 for (i
= 0, sh
= 7; i
< 8; i
++, sh
--) {
69 env
->crf
[i
] = (val
>> (sh
* 4)) & 0xFUL
;
73 /*****************************************************************************/
75 void helper_load_dump_spr (uint32_t sprn
)
78 fprintf(logfile
, "Read SPR %d %03x => " ADDRX
"\n",
79 sprn
, sprn
, env
->spr
[sprn
]);
83 void helper_store_dump_spr (uint32_t sprn
)
86 fprintf(logfile
, "Write SPR %d %03x <= " ADDRX
"\n",
87 sprn
, sprn
, env
->spr
[sprn
]);
91 target_ulong
helper_load_tbl (void)
93 return cpu_ppc_load_tbl(env
);
96 target_ulong
helper_load_tbu (void)
98 return cpu_ppc_load_tbu(env
);
101 target_ulong
helper_load_atbl (void)
103 return cpu_ppc_load_atbl(env
);
106 target_ulong
helper_load_atbu (void)
108 return cpu_ppc_load_atbu(env
);
111 target_ulong
helper_load_601_rtcl (void)
113 return cpu_ppc601_load_rtcl(env
);
116 target_ulong
helper_load_601_rtcu (void)
118 return cpu_ppc601_load_rtcu(env
);
121 #if !defined(CONFIG_USER_ONLY)
122 #if defined (TARGET_PPC64)
123 void helper_store_asr (target_ulong val
)
125 ppc_store_asr(env
, val
);
129 void helper_store_sdr1 (target_ulong val
)
131 ppc_store_sdr1(env
, val
);
134 void helper_store_tbl (target_ulong val
)
136 cpu_ppc_store_tbl(env
, val
);
139 void helper_store_tbu (target_ulong val
)
141 cpu_ppc_store_tbu(env
, val
);
144 void helper_store_atbl (target_ulong val
)
146 cpu_ppc_store_atbl(env
, val
);
149 void helper_store_atbu (target_ulong val
)
151 cpu_ppc_store_atbu(env
, val
);
154 void helper_store_601_rtcl (target_ulong val
)
156 cpu_ppc601_store_rtcl(env
, val
);
159 void helper_store_601_rtcu (target_ulong val
)
161 cpu_ppc601_store_rtcu(env
, val
);
164 target_ulong
helper_load_decr (void)
166 return cpu_ppc_load_decr(env
);
169 void helper_store_decr (target_ulong val
)
171 cpu_ppc_store_decr(env
, val
);
174 void helper_store_hid0_601 (target_ulong val
)
178 hid0
= env
->spr
[SPR_HID0
];
179 if ((val
^ hid0
) & 0x00000008) {
180 /* Change current endianness */
181 env
->hflags
&= ~(1 << MSR_LE
);
182 env
->hflags_nmsr
&= ~(1 << MSR_LE
);
183 env
->hflags_nmsr
|= (1 << MSR_LE
) & (((val
>> 3) & 1) << MSR_LE
);
184 env
->hflags
|= env
->hflags_nmsr
;
186 fprintf(logfile
, "%s: set endianness to %c => " ADDRX
"\n",
187 __func__
, val
& 0x8 ? 'l' : 'b', env
->hflags
);
190 env
->spr
[SPR_HID0
] = (uint32_t)val
;
193 void helper_store_403_pbr (uint32_t num
, target_ulong value
)
195 if (likely(env
->pb
[num
] != value
)) {
196 env
->pb
[num
] = value
;
197 /* Should be optimized */
202 target_ulong
helper_load_40x_pit (void)
204 return load_40x_pit(env
);
207 void helper_store_40x_pit (target_ulong val
)
209 store_40x_pit(env
, val
);
212 void helper_store_40x_dbcr0 (target_ulong val
)
214 store_40x_dbcr0(env
, val
);
217 void helper_store_40x_sler (target_ulong val
)
219 store_40x_sler(env
, val
);
222 void helper_store_booke_tcr (target_ulong val
)
224 store_booke_tcr(env
, val
);
227 void helper_store_booke_tsr (target_ulong val
)
229 store_booke_tsr(env
, val
);
232 void helper_store_ibatu (uint32_t nr
, target_ulong val
)
234 ppc_store_ibatu(env
, nr
, val
);
237 void helper_store_ibatl (uint32_t nr
, target_ulong val
)
239 ppc_store_ibatl(env
, nr
, val
);
242 void helper_store_dbatu (uint32_t nr
, target_ulong val
)
244 ppc_store_dbatu(env
, nr
, val
);
247 void helper_store_dbatl (uint32_t nr
, target_ulong val
)
249 ppc_store_dbatl(env
, nr
, val
);
252 void helper_store_601_batl (uint32_t nr
, target_ulong val
)
254 ppc_store_ibatl_601(env
, nr
, val
);
257 void helper_store_601_batu (uint32_t nr
, target_ulong val
)
259 ppc_store_ibatu_601(env
, nr
, val
);
263 /*****************************************************************************/
264 /* Memory load and stores */
266 static always_inline target_ulong
addr_add(target_ulong addr
, target_long arg
)
268 #if defined(TARGET_PPC64)
270 return (uint32_t)(addr
+ arg
);
276 void helper_lmw (target_ulong addr
, uint32_t reg
)
278 for (; reg
< 32; reg
++) {
280 env
->gpr
[reg
] = bswap32(ldl(addr
));
282 env
->gpr
[reg
] = ldl(addr
);
283 addr
= addr_add(addr
, 4);
287 void helper_stmw (target_ulong addr
, uint32_t reg
)
289 for (; reg
< 32; reg
++) {
291 stl(addr
, bswap32((uint32_t)env
->gpr
[reg
]));
293 stl(addr
, (uint32_t)env
->gpr
[reg
]);
294 addr
= addr_add(addr
, 4);
298 void helper_lsw(target_ulong addr
, uint32_t nb
, uint32_t reg
)
301 for (; nb
> 3; nb
-= 4) {
302 env
->gpr
[reg
] = ldl(addr
);
303 reg
= (reg
+ 1) % 32;
304 addr
= addr_add(addr
, 4);
306 if (unlikely(nb
> 0)) {
308 for (sh
= 24; nb
> 0; nb
--, sh
-= 8) {
309 env
->gpr
[reg
] |= ldub(addr
) << sh
;
310 addr
= addr_add(addr
, 1);
314 /* PPC32 specification says we must generate an exception if
315 * rA is in the range of registers to be loaded.
316 * In an other hand, IBM says this is valid, but rA won't be loaded.
317 * For now, I'll follow the spec...
319 void helper_lswx(target_ulong addr
, uint32_t reg
, uint32_t ra
, uint32_t rb
)
321 if (likely(xer_bc
!= 0)) {
322 if (unlikely((ra
!= 0 && reg
< ra
&& (reg
+ xer_bc
) > ra
) ||
323 (reg
< rb
&& (reg
+ xer_bc
) > rb
))) {
324 helper_raise_exception_err(POWERPC_EXCP_PROGRAM
,
326 POWERPC_EXCP_INVAL_LSWX
);
328 helper_lsw(addr
, xer_bc
, reg
);
333 void helper_stsw(target_ulong addr
, uint32_t nb
, uint32_t reg
)
336 for (; nb
> 3; nb
-= 4) {
337 stl(addr
, env
->gpr
[reg
]);
338 reg
= (reg
+ 1) % 32;
339 addr
= addr_add(addr
, 4);
341 if (unlikely(nb
> 0)) {
342 for (sh
= 24; nb
> 0; nb
--, sh
-= 8) {
343 stb(addr
, (env
->gpr
[reg
] >> sh
) & 0xFF);
344 addr
= addr_add(addr
, 1);
349 static void do_dcbz(target_ulong addr
, int dcache_line_size
)
351 addr
&= ~(dcache_line_size
- 1);
353 for (i
= 0 ; i
< dcache_line_size
; i
+= 4) {
356 if (env
->reserve
== addr
)
357 env
->reserve
= (target_ulong
)-1ULL;
360 void helper_dcbz(target_ulong addr
)
362 do_dcbz(addr
, env
->dcache_line_size
);
365 void helper_dcbz_970(target_ulong addr
)
367 if (((env
->spr
[SPR_970_HID5
] >> 7) & 0x3) == 1)
370 do_dcbz(addr
, env
->dcache_line_size
);
373 void helper_icbi(target_ulong addr
)
377 addr
&= ~(env
->dcache_line_size
- 1);
378 /* Invalidate one cache line :
379 * PowerPC specification says this is to be treated like a load
380 * (not a fetch) by the MMU. To be sure it will be so,
381 * do the load "by hand".
384 tb_invalidate_page_range(addr
, addr
+ env
->icache_line_size
);
388 target_ulong
helper_lscbx (target_ulong addr
, uint32_t reg
, uint32_t ra
, uint32_t rb
)
392 for (i
= 0; i
< xer_bc
; i
++) {
394 addr
= addr_add(addr
, 1);
395 /* ra (if not 0) and rb are never modified */
396 if (likely(reg
!= rb
&& (ra
== 0 || reg
!= ra
))) {
397 env
->gpr
[reg
] = (env
->gpr
[reg
] & ~(0xFF << d
)) | (c
<< d
);
399 if (unlikely(c
== xer_cmp
))
401 if (likely(d
!= 0)) {
412 /*****************************************************************************/
413 /* Fixed point operations helpers */
414 #if defined(TARGET_PPC64)
416 /* multiply high word */
417 uint64_t helper_mulhd (uint64_t arg1
, uint64_t arg2
)
421 muls64(&tl
, &th
, arg1
, arg2
);
425 /* multiply high word unsigned */
426 uint64_t helper_mulhdu (uint64_t arg1
, uint64_t arg2
)
430 mulu64(&tl
, &th
, arg1
, arg2
);
434 uint64_t helper_mulldo (uint64_t arg1
, uint64_t arg2
)
439 muls64(&tl
, (uint64_t *)&th
, arg1
, arg2
);
440 /* If th != 0 && th != -1, then we had an overflow */
441 if (likely((uint64_t)(th
+ 1) <= 1)) {
442 env
->xer
&= ~(1 << XER_OV
);
444 env
->xer
|= (1 << XER_OV
) | (1 << XER_SO
);
450 target_ulong
helper_cntlzw (target_ulong t
)
455 #if defined(TARGET_PPC64)
456 target_ulong
helper_cntlzd (target_ulong t
)
462 /* shift right arithmetic helper */
463 target_ulong
helper_sraw (target_ulong value
, target_ulong shift
)
467 if (likely(!(shift
& 0x20))) {
468 if (likely((uint32_t)shift
!= 0)) {
470 ret
= (int32_t)value
>> shift
;
471 if (likely(ret
>= 0 || (value
& ((1 << shift
) - 1)) == 0)) {
472 env
->xer
&= ~(1 << XER_CA
);
474 env
->xer
|= (1 << XER_CA
);
477 ret
= (int32_t)value
;
478 env
->xer
&= ~(1 << XER_CA
);
481 ret
= (int32_t)value
>> 31;
483 env
->xer
|= (1 << XER_CA
);
485 env
->xer
&= ~(1 << XER_CA
);
488 return (target_long
)ret
;
491 #if defined(TARGET_PPC64)
492 target_ulong
helper_srad (target_ulong value
, target_ulong shift
)
496 if (likely(!(shift
& 0x40))) {
497 if (likely((uint64_t)shift
!= 0)) {
499 ret
= (int64_t)value
>> shift
;
500 if (likely(ret
>= 0 || (value
& ((1 << shift
) - 1)) == 0)) {
501 env
->xer
&= ~(1 << XER_CA
);
503 env
->xer
|= (1 << XER_CA
);
506 ret
= (int64_t)value
;
507 env
->xer
&= ~(1 << XER_CA
);
510 ret
= (int64_t)value
>> 63;
512 env
->xer
|= (1 << XER_CA
);
514 env
->xer
&= ~(1 << XER_CA
);
521 target_ulong
helper_popcntb (target_ulong val
)
523 val
= (val
& 0x55555555) + ((val
>> 1) & 0x55555555);
524 val
= (val
& 0x33333333) + ((val
>> 2) & 0x33333333);
525 val
= (val
& 0x0f0f0f0f) + ((val
>> 4) & 0x0f0f0f0f);
529 #if defined(TARGET_PPC64)
530 target_ulong
helper_popcntb_64 (target_ulong val
)
532 val
= (val
& 0x5555555555555555ULL
) + ((val
>> 1) & 0x5555555555555555ULL
);
533 val
= (val
& 0x3333333333333333ULL
) + ((val
>> 2) & 0x3333333333333333ULL
);
534 val
= (val
& 0x0f0f0f0f0f0f0f0fULL
) + ((val
>> 4) & 0x0f0f0f0f0f0f0f0fULL
);
539 /*****************************************************************************/
540 /* Floating point operations helpers */
541 uint64_t helper_float32_to_float64(uint32_t arg
)
546 d
.d
= float32_to_float64(f
.f
, &env
->fp_status
);
550 uint32_t helper_float64_to_float32(uint64_t arg
)
555 f
.f
= float64_to_float32(d
.d
, &env
->fp_status
);
559 static always_inline
int isden (float64 d
)
565 return ((u
.ll
>> 52) & 0x7FF) == 0;
568 uint32_t helper_compute_fprf (uint64_t arg
, uint32_t set_fprf
)
574 isneg
= float64_is_neg(farg
.d
);
575 if (unlikely(float64_is_nan(farg
.d
))) {
576 if (float64_is_signaling_nan(farg
.d
)) {
577 /* Signaling NaN: flags are undefined */
583 } else if (unlikely(float64_is_infinity(farg
.d
))) {
590 if (float64_is_zero(farg
.d
)) {
598 /* Denormalized numbers */
601 /* Normalized numbers */
612 /* We update FPSCR_FPRF */
613 env
->fpscr
&= ~(0x1F << FPSCR_FPRF
);
614 env
->fpscr
|= ret
<< FPSCR_FPRF
;
616 /* We just need fpcc to update Rc1 */
620 /* Floating-point invalid operations exception */
621 static always_inline
uint64_t fload_invalid_op_excp (int op
)
628 case POWERPC_EXCP_FP_VXSNAN
:
629 env
->fpscr
|= 1 << FPSCR_VXSNAN
;
631 case POWERPC_EXCP_FP_VXSOFT
:
632 env
->fpscr
|= 1 << FPSCR_VXSOFT
;
634 case POWERPC_EXCP_FP_VXISI
:
635 /* Magnitude subtraction of infinities */
636 env
->fpscr
|= 1 << FPSCR_VXISI
;
638 case POWERPC_EXCP_FP_VXIDI
:
639 /* Division of infinity by infinity */
640 env
->fpscr
|= 1 << FPSCR_VXIDI
;
642 case POWERPC_EXCP_FP_VXZDZ
:
643 /* Division of zero by zero */
644 env
->fpscr
|= 1 << FPSCR_VXZDZ
;
646 case POWERPC_EXCP_FP_VXIMZ
:
647 /* Multiplication of zero by infinity */
648 env
->fpscr
|= 1 << FPSCR_VXIMZ
;
650 case POWERPC_EXCP_FP_VXVC
:
651 /* Ordered comparison of NaN */
652 env
->fpscr
|= 1 << FPSCR_VXVC
;
653 env
->fpscr
&= ~(0xF << FPSCR_FPCC
);
654 env
->fpscr
|= 0x11 << FPSCR_FPCC
;
655 /* We must update the target FPR before raising the exception */
657 env
->exception_index
= POWERPC_EXCP_PROGRAM
;
658 env
->error_code
= POWERPC_EXCP_FP
| POWERPC_EXCP_FP_VXVC
;
659 /* Update the floating-point enabled exception summary */
660 env
->fpscr
|= 1 << FPSCR_FEX
;
661 /* Exception is differed */
665 case POWERPC_EXCP_FP_VXSQRT
:
666 /* Square root of a negative number */
667 env
->fpscr
|= 1 << FPSCR_VXSQRT
;
669 env
->fpscr
&= ~((1 << FPSCR_FR
) | (1 << FPSCR_FI
));
671 /* Set the result to quiet NaN */
672 ret
= 0xFFF8000000000000ULL
;
673 env
->fpscr
&= ~(0xF << FPSCR_FPCC
);
674 env
->fpscr
|= 0x11 << FPSCR_FPCC
;
677 case POWERPC_EXCP_FP_VXCVI
:
678 /* Invalid conversion */
679 env
->fpscr
|= 1 << FPSCR_VXCVI
;
680 env
->fpscr
&= ~((1 << FPSCR_FR
) | (1 << FPSCR_FI
));
682 /* Set the result to quiet NaN */
683 ret
= 0xFFF8000000000000ULL
;
684 env
->fpscr
&= ~(0xF << FPSCR_FPCC
);
685 env
->fpscr
|= 0x11 << FPSCR_FPCC
;
689 /* Update the floating-point invalid operation summary */
690 env
->fpscr
|= 1 << FPSCR_VX
;
691 /* Update the floating-point exception summary */
692 env
->fpscr
|= 1 << FPSCR_FX
;
694 /* Update the floating-point enabled exception summary */
695 env
->fpscr
|= 1 << FPSCR_FEX
;
696 if (msr_fe0
!= 0 || msr_fe1
!= 0)
697 helper_raise_exception_err(POWERPC_EXCP_PROGRAM
, POWERPC_EXCP_FP
| op
);
702 static always_inline
void float_zero_divide_excp (void)
704 env
->fpscr
|= 1 << FPSCR_ZX
;
705 env
->fpscr
&= ~((1 << FPSCR_FR
) | (1 << FPSCR_FI
));
706 /* Update the floating-point exception summary */
707 env
->fpscr
|= 1 << FPSCR_FX
;
709 /* Update the floating-point enabled exception summary */
710 env
->fpscr
|= 1 << FPSCR_FEX
;
711 if (msr_fe0
!= 0 || msr_fe1
!= 0) {
712 helper_raise_exception_err(POWERPC_EXCP_PROGRAM
,
713 POWERPC_EXCP_FP
| POWERPC_EXCP_FP_ZX
);
718 static always_inline
void float_overflow_excp (void)
720 env
->fpscr
|= 1 << FPSCR_OX
;
721 /* Update the floating-point exception summary */
722 env
->fpscr
|= 1 << FPSCR_FX
;
724 /* XXX: should adjust the result */
725 /* Update the floating-point enabled exception summary */
726 env
->fpscr
|= 1 << FPSCR_FEX
;
727 /* We must update the target FPR before raising the exception */
728 env
->exception_index
= POWERPC_EXCP_PROGRAM
;
729 env
->error_code
= POWERPC_EXCP_FP
| POWERPC_EXCP_FP_OX
;
731 env
->fpscr
|= 1 << FPSCR_XX
;
732 env
->fpscr
|= 1 << FPSCR_FI
;
736 static always_inline
void float_underflow_excp (void)
738 env
->fpscr
|= 1 << FPSCR_UX
;
739 /* Update the floating-point exception summary */
740 env
->fpscr
|= 1 << FPSCR_FX
;
742 /* XXX: should adjust the result */
743 /* Update the floating-point enabled exception summary */
744 env
->fpscr
|= 1 << FPSCR_FEX
;
745 /* We must update the target FPR before raising the exception */
746 env
->exception_index
= POWERPC_EXCP_PROGRAM
;
747 env
->error_code
= POWERPC_EXCP_FP
| POWERPC_EXCP_FP_UX
;
751 static always_inline
void float_inexact_excp (void)
753 env
->fpscr
|= 1 << FPSCR_XX
;
754 /* Update the floating-point exception summary */
755 env
->fpscr
|= 1 << FPSCR_FX
;
757 /* Update the floating-point enabled exception summary */
758 env
->fpscr
|= 1 << FPSCR_FEX
;
759 /* We must update the target FPR before raising the exception */
760 env
->exception_index
= POWERPC_EXCP_PROGRAM
;
761 env
->error_code
= POWERPC_EXCP_FP
| POWERPC_EXCP_FP_XX
;
765 static always_inline
void fpscr_set_rounding_mode (void)
769 /* Set rounding mode */
772 /* Best approximation (round to nearest) */
773 rnd_type
= float_round_nearest_even
;
776 /* Smaller magnitude (round toward zero) */
777 rnd_type
= float_round_to_zero
;
780 /* Round toward +infinite */
781 rnd_type
= float_round_up
;
785 /* Round toward -infinite */
786 rnd_type
= float_round_down
;
789 set_float_rounding_mode(rnd_type
, &env
->fp_status
);
792 void helper_fpscr_clrbit (uint32_t bit
)
796 prev
= (env
->fpscr
>> bit
) & 1;
797 env
->fpscr
&= ~(1 << bit
);
802 fpscr_set_rounding_mode();
810 void helper_fpscr_setbit (uint32_t bit
)
814 prev
= (env
->fpscr
>> bit
) & 1;
815 env
->fpscr
|= 1 << bit
;
819 env
->fpscr
|= 1 << FPSCR_FX
;
823 env
->fpscr
|= 1 << FPSCR_FX
;
828 env
->fpscr
|= 1 << FPSCR_FX
;
833 env
->fpscr
|= 1 << FPSCR_FX
;
838 env
->fpscr
|= 1 << FPSCR_FX
;
851 env
->fpscr
|= 1 << FPSCR_VX
;
852 env
->fpscr
|= 1 << FPSCR_FX
;
859 env
->error_code
= POWERPC_EXCP_FP
;
861 env
->error_code
|= POWERPC_EXCP_FP_VXSNAN
;
863 env
->error_code
|= POWERPC_EXCP_FP_VXISI
;
865 env
->error_code
|= POWERPC_EXCP_FP_VXIDI
;
867 env
->error_code
|= POWERPC_EXCP_FP_VXZDZ
;
869 env
->error_code
|= POWERPC_EXCP_FP_VXIMZ
;
871 env
->error_code
|= POWERPC_EXCP_FP_VXVC
;
873 env
->error_code
|= POWERPC_EXCP_FP_VXSOFT
;
875 env
->error_code
|= POWERPC_EXCP_FP_VXSQRT
;
877 env
->error_code
|= POWERPC_EXCP_FP_VXCVI
;
884 env
->error_code
= POWERPC_EXCP_FP
| POWERPC_EXCP_FP_OX
;
891 env
->error_code
= POWERPC_EXCP_FP
| POWERPC_EXCP_FP_UX
;
898 env
->error_code
= POWERPC_EXCP_FP
| POWERPC_EXCP_FP_ZX
;
905 env
->error_code
= POWERPC_EXCP_FP
| POWERPC_EXCP_FP_XX
;
911 fpscr_set_rounding_mode();
916 /* Update the floating-point enabled exception summary */
917 env
->fpscr
|= 1 << FPSCR_FEX
;
918 /* We have to update Rc1 before raising the exception */
919 env
->exception_index
= POWERPC_EXCP_PROGRAM
;
925 void helper_store_fpscr (uint64_t arg
, uint32_t mask
)
928 * We use only the 32 LSB of the incoming fpr
936 new |= prev
& 0x60000000;
937 for (i
= 0; i
< 8; i
++) {
938 if (mask
& (1 << i
)) {
939 env
->fpscr
&= ~(0xF << (4 * i
));
940 env
->fpscr
|= new & (0xF << (4 * i
));
943 /* Update VX and FEX */
945 env
->fpscr
|= 1 << FPSCR_VX
;
947 env
->fpscr
&= ~(1 << FPSCR_VX
);
948 if ((fpscr_ex
& fpscr_eex
) != 0) {
949 env
->fpscr
|= 1 << FPSCR_FEX
;
950 env
->exception_index
= POWERPC_EXCP_PROGRAM
;
951 /* XXX: we should compute it properly */
952 env
->error_code
= POWERPC_EXCP_FP
;
955 env
->fpscr
&= ~(1 << FPSCR_FEX
);
956 fpscr_set_rounding_mode();
959 void helper_float_check_status (void)
961 #ifdef CONFIG_SOFTFLOAT
962 if (env
->exception_index
== POWERPC_EXCP_PROGRAM
&&
963 (env
->error_code
& POWERPC_EXCP_FP
)) {
964 /* Differred floating-point exception after target FPR update */
965 if (msr_fe0
!= 0 || msr_fe1
!= 0)
966 helper_raise_exception_err(env
->exception_index
, env
->error_code
);
968 int status
= get_float_exception_flags(&env
->fp_status
);
969 if (status
& float_flag_divbyzero
) {
970 float_zero_divide_excp();
971 } else if (status
& float_flag_overflow
) {
972 float_overflow_excp();
973 } else if (status
& float_flag_underflow
) {
974 float_underflow_excp();
975 } else if (status
& float_flag_inexact
) {
976 float_inexact_excp();
980 if (env
->exception_index
== POWERPC_EXCP_PROGRAM
&&
981 (env
->error_code
& POWERPC_EXCP_FP
)) {
982 /* Differred floating-point exception after target FPR update */
983 if (msr_fe0
!= 0 || msr_fe1
!= 0)
984 helper_raise_exception_err(env
->exception_index
, env
->error_code
);
989 #ifdef CONFIG_SOFTFLOAT
990 void helper_reset_fpstatus (void)
992 set_float_exception_flags(0, &env
->fp_status
);
997 uint64_t helper_fadd (uint64_t arg1
, uint64_t arg2
)
999 CPU_DoubleU farg1
, farg2
;
1003 #if USE_PRECISE_EMULATION
1004 if (unlikely(float64_is_signaling_nan(farg1
.d
) ||
1005 float64_is_signaling_nan(farg2
.d
))) {
1007 farg1
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN
);
1008 } else if (unlikely(float64_is_infinity(farg1
.d
) && float64_is_infinity(farg2
.d
) &&
1009 float64_is_neg(farg1
.d
) != float64_is_neg(farg2
.d
))) {
1010 /* Magnitude subtraction of infinities */
1011 farg1
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXISI
);
1013 farg1
.d
= float64_add(farg1
.d
, farg2
.d
, &env
->fp_status
);
1016 farg1
.d
= float64_add(farg1
.d
, farg2
.d
, &env
->fp_status
);
1022 uint64_t helper_fsub (uint64_t arg1
, uint64_t arg2
)
1024 CPU_DoubleU farg1
, farg2
;
1028 #if USE_PRECISE_EMULATION
1030 if (unlikely(float64_is_signaling_nan(farg1
.d
) ||
1031 float64_is_signaling_nan(farg2
.d
))) {
1032 /* sNaN subtraction */
1033 farg1
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN
);
1034 } else if (unlikely(float64_is_infinity(farg1
.d
) && float64_is_infinity(farg2
.d
) &&
1035 float64_is_neg(farg1
.d
) == float64_is_neg(farg2
.d
))) {
1036 /* Magnitude subtraction of infinities */
1037 farg1
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXISI
);
1039 farg1
.d
= float64_sub(farg1
.d
, farg2
.d
, &env
->fp_status
);
1043 farg1
.d
= float64_sub(farg1
.d
, farg2
.d
, &env
->fp_status
);
1049 uint64_t helper_fmul (uint64_t arg1
, uint64_t arg2
)
1051 CPU_DoubleU farg1
, farg2
;
1055 #if USE_PRECISE_EMULATION
1056 if (unlikely(float64_is_signaling_nan(farg1
.d
) ||
1057 float64_is_signaling_nan(farg2
.d
))) {
1058 /* sNaN multiplication */
1059 farg1
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN
);
1060 } else if (unlikely((float64_is_infinity(farg1
.d
) && float64_is_zero(farg2
.d
)) ||
1061 (float64_is_zero(farg1
.d
) && float64_is_infinity(farg2
.d
)))) {
1062 /* Multiplication of zero by infinity */
1063 farg1
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXIMZ
);
1065 farg1
.d
= float64_mul(farg1
.d
, farg2
.d
, &env
->fp_status
);
1068 farg1
.d
= float64_mul(farg1
.d
, farg2
.d
, &env
->fp_status
);
1074 uint64_t helper_fdiv (uint64_t arg1
, uint64_t arg2
)
1076 CPU_DoubleU farg1
, farg2
;
1080 #if USE_PRECISE_EMULATION
1081 if (unlikely(float64_is_signaling_nan(farg1
.d
) ||
1082 float64_is_signaling_nan(farg2
.d
))) {
1084 farg1
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN
);
1085 } else if (unlikely(float64_is_infinity(farg1
.d
) && float64_is_infinity(farg2
.d
))) {
1086 /* Division of infinity by infinity */
1087 farg1
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXIDI
);
1088 } else if (unlikely(float64_is_zero(farg1
.d
) && float64_is_zero(farg2
.d
))) {
1089 /* Division of zero by zero */
1090 farg1
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXZDZ
);
1092 farg1
.d
= float64_div(farg1
.d
, farg2
.d
, &env
->fp_status
);
1095 farg1
.d
= float64_div(farg1
.d
, farg2
.d
, &env
->fp_status
);
1101 uint64_t helper_fabs (uint64_t arg
)
1106 farg
.d
= float64_abs(farg
.d
);
1111 uint64_t helper_fnabs (uint64_t arg
)
1116 farg
.d
= float64_abs(farg
.d
);
1117 farg
.d
= float64_chs(farg
.d
);
1122 uint64_t helper_fneg (uint64_t arg
)
1127 farg
.d
= float64_chs(farg
.d
);
1131 /* fctiw - fctiw. */
1132 uint64_t helper_fctiw (uint64_t arg
)
1137 if (unlikely(float64_is_signaling_nan(farg
.d
))) {
1138 /* sNaN conversion */
1139 farg
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN
| POWERPC_EXCP_FP_VXCVI
);
1140 } else if (unlikely(float64_is_nan(farg
.d
) || float64_is_infinity(farg
.d
))) {
1141 /* qNan / infinity conversion */
1142 farg
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI
);
1144 farg
.ll
= float64_to_int32(farg
.d
, &env
->fp_status
);
1145 #if USE_PRECISE_EMULATION
1146 /* XXX: higher bits are not supposed to be significant.
1147 * to make tests easier, return the same as a real PowerPC 750
1149 farg
.ll
|= 0xFFF80000ULL
<< 32;
1155 /* fctiwz - fctiwz. */
1156 uint64_t helper_fctiwz (uint64_t arg
)
1161 if (unlikely(float64_is_signaling_nan(farg
.d
))) {
1162 /* sNaN conversion */
1163 farg
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN
| POWERPC_EXCP_FP_VXCVI
);
1164 } else if (unlikely(float64_is_nan(farg
.d
) || float64_is_infinity(farg
.d
))) {
1165 /* qNan / infinity conversion */
1166 farg
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI
);
1168 farg
.ll
= float64_to_int32_round_to_zero(farg
.d
, &env
->fp_status
);
1169 #if USE_PRECISE_EMULATION
1170 /* XXX: higher bits are not supposed to be significant.
1171 * to make tests easier, return the same as a real PowerPC 750
1173 farg
.ll
|= 0xFFF80000ULL
<< 32;
1179 #if defined(TARGET_PPC64)
1180 /* fcfid - fcfid. */
1181 uint64_t helper_fcfid (uint64_t arg
)
1184 farg
.d
= int64_to_float64(arg
, &env
->fp_status
);
1188 /* fctid - fctid. */
1189 uint64_t helper_fctid (uint64_t arg
)
1194 if (unlikely(float64_is_signaling_nan(farg
.d
))) {
1195 /* sNaN conversion */
1196 farg
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN
| POWERPC_EXCP_FP_VXCVI
);
1197 } else if (unlikely(float64_is_nan(farg
.d
) || float64_is_infinity(farg
.d
))) {
1198 /* qNan / infinity conversion */
1199 farg
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI
);
1201 farg
.ll
= float64_to_int64(farg
.d
, &env
->fp_status
);
1206 /* fctidz - fctidz. */
1207 uint64_t helper_fctidz (uint64_t arg
)
1212 if (unlikely(float64_is_signaling_nan(farg
.d
))) {
1213 /* sNaN conversion */
1214 farg
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN
| POWERPC_EXCP_FP_VXCVI
);
1215 } else if (unlikely(float64_is_nan(farg
.d
) || float64_is_infinity(farg
.d
))) {
1216 /* qNan / infinity conversion */
1217 farg
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI
);
1219 farg
.ll
= float64_to_int64_round_to_zero(farg
.d
, &env
->fp_status
);
1226 static always_inline
uint64_t do_fri (uint64_t arg
, int rounding_mode
)
1231 if (unlikely(float64_is_signaling_nan(farg
.d
))) {
1233 farg
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN
| POWERPC_EXCP_FP_VXCVI
);
1234 } else if (unlikely(float64_is_nan(farg
.d
) || float64_is_infinity(farg
.d
))) {
1235 /* qNan / infinity round */
1236 farg
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI
);
1238 set_float_rounding_mode(rounding_mode
, &env
->fp_status
);
1239 farg
.ll
= float64_round_to_int(farg
.d
, &env
->fp_status
);
1240 /* Restore rounding mode from FPSCR */
1241 fpscr_set_rounding_mode();
1246 uint64_t helper_frin (uint64_t arg
)
1248 return do_fri(arg
, float_round_nearest_even
);
1251 uint64_t helper_friz (uint64_t arg
)
1253 return do_fri(arg
, float_round_to_zero
);
1256 uint64_t helper_frip (uint64_t arg
)
1258 return do_fri(arg
, float_round_up
);
1261 uint64_t helper_frim (uint64_t arg
)
1263 return do_fri(arg
, float_round_down
);
1266 /* fmadd - fmadd. */
1267 uint64_t helper_fmadd (uint64_t arg1
, uint64_t arg2
, uint64_t arg3
)
1269 CPU_DoubleU farg1
, farg2
, farg3
;
1274 #if USE_PRECISE_EMULATION
1275 if (unlikely(float64_is_signaling_nan(farg1
.d
) ||
1276 float64_is_signaling_nan(farg2
.d
) ||
1277 float64_is_signaling_nan(farg3
.d
))) {
1278 /* sNaN operation */
1279 farg1
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN
);
1280 } else if (unlikely((float64_is_infinity(farg1
.d
) && float64_is_zero(farg2
.d
)) ||
1281 (float64_is_zero(farg1
.d
) && float64_is_infinity(farg2
.d
)))) {
1282 /* Multiplication of zero by infinity */
1283 farg1
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXIMZ
);
1286 /* This is the way the PowerPC specification defines it */
1287 float128 ft0_128
, ft1_128
;
1289 ft0_128
= float64_to_float128(farg1
.d
, &env
->fp_status
);
1290 ft1_128
= float64_to_float128(farg2
.d
, &env
->fp_status
);
1291 ft0_128
= float128_mul(ft0_128
, ft1_128
, &env
->fp_status
);
1292 if (unlikely(float128_is_infinity(ft0_128
) && float64_is_infinity(farg3
.d
) &&
1293 float128_is_neg(ft0_128
) != float64_is_neg(farg3
.d
))) {
1294 /* Magnitude subtraction of infinities */
1295 farg1
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXISI
);
1297 ft1_128
= float64_to_float128(farg3
.d
, &env
->fp_status
);
1298 ft0_128
= float128_add(ft0_128
, ft1_128
, &env
->fp_status
);
1299 farg1
.d
= float128_to_float64(ft0_128
, &env
->fp_status
);
1302 /* This is OK on x86 hosts */
1303 farg1
.d
= (farg1
.d
* farg2
.d
) + farg3
.d
;
1307 farg1
.d
= float64_mul(farg1
.d
, farg2
.d
, &env
->fp_status
);
1308 farg1
.d
= float64_add(farg1
.d
, farg3
.d
, &env
->fp_status
);
1313 /* fmsub - fmsub. */
1314 uint64_t helper_fmsub (uint64_t arg1
, uint64_t arg2
, uint64_t arg3
)
1316 CPU_DoubleU farg1
, farg2
, farg3
;
1321 #if USE_PRECISE_EMULATION
1322 if (unlikely(float64_is_signaling_nan(farg1
.d
) ||
1323 float64_is_signaling_nan(farg2
.d
) ||
1324 float64_is_signaling_nan(farg3
.d
))) {
1325 /* sNaN operation */
1326 farg1
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN
);
1327 } else if (unlikely((float64_is_infinity(farg1
.d
) && float64_is_zero(farg2
.d
)) ||
1328 (float64_is_zero(farg1
.d
) && float64_is_infinity(farg2
.d
)))) {
1329 /* Multiplication of zero by infinity */
1330 farg1
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXIMZ
);
1333 /* This is the way the PowerPC specification defines it */
1334 float128 ft0_128
, ft1_128
;
1336 ft0_128
= float64_to_float128(farg1
.d
, &env
->fp_status
);
1337 ft1_128
= float64_to_float128(farg2
.d
, &env
->fp_status
);
1338 ft0_128
= float128_mul(ft0_128
, ft1_128
, &env
->fp_status
);
1339 if (unlikely(float128_is_infinity(ft0_128
) && float64_is_infinity(farg3
.d
) &&
1340 float128_is_neg(ft0_128
) == float64_is_neg(farg3
.d
))) {
1341 /* Magnitude subtraction of infinities */
1342 farg1
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXISI
);
1344 ft1_128
= float64_to_float128(farg3
.d
, &env
->fp_status
);
1345 ft0_128
= float128_sub(ft0_128
, ft1_128
, &env
->fp_status
);
1346 farg1
.d
= float128_to_float64(ft0_128
, &env
->fp_status
);
1349 /* This is OK on x86 hosts */
1350 farg1
.d
= (farg1
.d
* farg2
.d
) - farg3
.d
;
1354 farg1
.d
= float64_mul(farg1
.d
, farg2
.d
, &env
->fp_status
);
1355 farg1
.d
= float64_sub(farg1
.d
, farg3
.d
, &env
->fp_status
);
1360 /* fnmadd - fnmadd. */
1361 uint64_t helper_fnmadd (uint64_t arg1
, uint64_t arg2
, uint64_t arg3
)
1363 CPU_DoubleU farg1
, farg2
, farg3
;
1369 if (unlikely(float64_is_signaling_nan(farg1
.d
) ||
1370 float64_is_signaling_nan(farg2
.d
) ||
1371 float64_is_signaling_nan(farg3
.d
))) {
1372 /* sNaN operation */
1373 farg1
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN
);
1374 } else if (unlikely((float64_is_infinity(farg1
.d
) && float64_is_zero(farg2
.d
)) ||
1375 (float64_is_zero(farg1
.d
) && float64_is_infinity(farg2
.d
)))) {
1376 /* Multiplication of zero by infinity */
1377 farg1
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXIMZ
);
1379 #if USE_PRECISE_EMULATION
1381 /* This is the way the PowerPC specification defines it */
1382 float128 ft0_128
, ft1_128
;
1384 ft0_128
= float64_to_float128(farg1
.d
, &env
->fp_status
);
1385 ft1_128
= float64_to_float128(farg2
.d
, &env
->fp_status
);
1386 ft0_128
= float128_mul(ft0_128
, ft1_128
, &env
->fp_status
);
1387 if (unlikely(float128_is_infinity(ft0_128
) && float64_is_infinity(farg3
.d
) &&
1388 float128_is_neg(ft0_128
) != float64_is_neg(farg3
.d
))) {
1389 /* Magnitude subtraction of infinities */
1390 farg1
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXISI
);
1392 ft1_128
= float64_to_float128(farg3
.d
, &env
->fp_status
);
1393 ft0_128
= float128_add(ft0_128
, ft1_128
, &env
->fp_status
);
1394 farg1
.d
= float128_to_float64(ft0_128
, &env
->fp_status
);
1397 /* This is OK on x86 hosts */
1398 farg1
.d
= (farg1
.d
* farg2
.d
) + farg3
.d
;
1401 farg1
.d
= float64_mul(farg1
.d
, farg2
.d
, &env
->fp_status
);
1402 farg1
.d
= float64_add(farg1
.d
, farg3
.d
, &env
->fp_status
);
1404 if (likely(!float64_is_nan(farg1
.d
)))
1405 farg1
.d
= float64_chs(farg1
.d
);
1410 /* fnmsub - fnmsub. */
1411 uint64_t helper_fnmsub (uint64_t arg1
, uint64_t arg2
, uint64_t arg3
)
1413 CPU_DoubleU farg1
, farg2
, farg3
;
1419 if (unlikely(float64_is_signaling_nan(farg1
.d
) ||
1420 float64_is_signaling_nan(farg2
.d
) ||
1421 float64_is_signaling_nan(farg3
.d
))) {
1422 /* sNaN operation */
1423 farg1
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN
);
1424 } else if (unlikely((float64_is_infinity(farg1
.d
) && float64_is_zero(farg2
.d
)) ||
1425 (float64_is_zero(farg1
.d
) && float64_is_infinity(farg2
.d
)))) {
1426 /* Multiplication of zero by infinity */
1427 farg1
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXIMZ
);
1429 #if USE_PRECISE_EMULATION
1431 /* This is the way the PowerPC specification defines it */
1432 float128 ft0_128
, ft1_128
;
1434 ft0_128
= float64_to_float128(farg1
.d
, &env
->fp_status
);
1435 ft1_128
= float64_to_float128(farg2
.d
, &env
->fp_status
);
1436 ft0_128
= float128_mul(ft0_128
, ft1_128
, &env
->fp_status
);
1437 if (unlikely(float128_is_infinity(ft0_128
) && float64_is_infinity(farg3
.d
) &&
1438 float128_is_neg(ft0_128
) == float64_is_neg(farg3
.d
))) {
1439 /* Magnitude subtraction of infinities */
1440 farg1
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXISI
);
1442 ft1_128
= float64_to_float128(farg3
.d
, &env
->fp_status
);
1443 ft0_128
= float128_sub(ft0_128
, ft1_128
, &env
->fp_status
);
1444 farg1
.d
= float128_to_float64(ft0_128
, &env
->fp_status
);
1447 /* This is OK on x86 hosts */
1448 farg1
.d
= (farg1
.d
* farg2
.d
) - farg3
.d
;
1451 farg1
.d
= float64_mul(farg1
.d
, farg2
.d
, &env
->fp_status
);
1452 farg1
.d
= float64_sub(farg1
.d
, farg3
.d
, &env
->fp_status
);
1454 if (likely(!float64_is_nan(farg1
.d
)))
1455 farg1
.d
= float64_chs(farg1
.d
);
1461 uint64_t helper_frsp (uint64_t arg
)
1467 #if USE_PRECISE_EMULATION
1468 if (unlikely(float64_is_signaling_nan(farg
.d
))) {
1469 /* sNaN square root */
1470 farg
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN
);
1472 f32
= float64_to_float32(farg
.d
, &env
->fp_status
);
1473 farg
.d
= float32_to_float64(f32
, &env
->fp_status
);
1476 f32
= float64_to_float32(farg
.d
, &env
->fp_status
);
1477 farg
.d
= float32_to_float64(f32
, &env
->fp_status
);
1482 /* fsqrt - fsqrt. */
1483 uint64_t helper_fsqrt (uint64_t arg
)
1488 if (unlikely(float64_is_signaling_nan(farg
.d
))) {
1489 /* sNaN square root */
1490 farg
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN
);
1491 } else if (unlikely(float64_is_neg(farg
.d
) && !float64_is_zero(farg
.d
))) {
1492 /* Square root of a negative nonzero number */
1493 farg
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXSQRT
);
1495 farg
.d
= float64_sqrt(farg
.d
, &env
->fp_status
);
1501 uint64_t helper_fre (uint64_t arg
)
1503 CPU_DoubleU fone
, farg
;
1504 fone
.ll
= 0x3FF0000000000000ULL
; /* 1.0 */
1507 if (unlikely(float64_is_signaling_nan(farg
.d
))) {
1508 /* sNaN reciprocal */
1509 farg
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN
);
1511 farg
.d
= float64_div(fone
.d
, farg
.d
, &env
->fp_status
);
1517 uint64_t helper_fres (uint64_t arg
)
1519 CPU_DoubleU fone
, farg
;
1521 fone
.ll
= 0x3FF0000000000000ULL
; /* 1.0 */
1524 if (unlikely(float64_is_signaling_nan(farg
.d
))) {
1525 /* sNaN reciprocal */
1526 farg
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN
);
1528 farg
.d
= float64_div(fone
.d
, farg
.d
, &env
->fp_status
);
1529 f32
= float64_to_float32(farg
.d
, &env
->fp_status
);
1530 farg
.d
= float32_to_float64(f32
, &env
->fp_status
);
1535 /* frsqrte - frsqrte. */
1536 uint64_t helper_frsqrte (uint64_t arg
)
1538 CPU_DoubleU fone
, farg
;
1540 fone
.ll
= 0x3FF0000000000000ULL
; /* 1.0 */
1543 if (unlikely(float64_is_signaling_nan(farg
.d
))) {
1544 /* sNaN reciprocal square root */
1545 farg
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN
);
1546 } else if (unlikely(float64_is_neg(farg
.d
) && !float64_is_zero(farg
.d
))) {
1547 /* Reciprocal square root of a negative nonzero number */
1548 farg
.ll
= fload_invalid_op_excp(POWERPC_EXCP_FP_VXSQRT
);
1550 farg
.d
= float64_sqrt(farg
.d
, &env
->fp_status
);
1551 farg
.d
= float64_div(fone
.d
, farg
.d
, &env
->fp_status
);
1552 f32
= float64_to_float32(farg
.d
, &env
->fp_status
);
1553 farg
.d
= float32_to_float64(f32
, &env
->fp_status
);
1559 uint64_t helper_fsel (uint64_t arg1
, uint64_t arg2
, uint64_t arg3
)
1565 if ((!float64_is_neg(farg1
.d
) || float64_is_zero(farg1
.d
)) && !float64_is_nan(farg1
.d
))
1571 void helper_fcmpu (uint64_t arg1
, uint64_t arg2
, uint32_t crfD
)
1573 CPU_DoubleU farg1
, farg2
;
1578 if (unlikely(float64_is_nan(farg1
.d
) ||
1579 float64_is_nan(farg2
.d
))) {
1581 } else if (float64_lt(farg1
.d
, farg2
.d
, &env
->fp_status
)) {
1583 } else if (!float64_le(farg1
.d
, farg2
.d
, &env
->fp_status
)) {
1589 env
->fpscr
&= ~(0x0F << FPSCR_FPRF
);
1590 env
->fpscr
|= ret
<< FPSCR_FPRF
;
1591 env
->crf
[crfD
] = ret
;
1592 if (unlikely(ret
== 0x01UL
1593 && (float64_is_signaling_nan(farg1
.d
) ||
1594 float64_is_signaling_nan(farg2
.d
)))) {
1595 /* sNaN comparison */
1596 fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN
);
1600 void helper_fcmpo (uint64_t arg1
, uint64_t arg2
, uint32_t crfD
)
1602 CPU_DoubleU farg1
, farg2
;
1607 if (unlikely(float64_is_nan(farg1
.d
) ||
1608 float64_is_nan(farg2
.d
))) {
1610 } else if (float64_lt(farg1
.d
, farg2
.d
, &env
->fp_status
)) {
1612 } else if (!float64_le(farg1
.d
, farg2
.d
, &env
->fp_status
)) {
1618 env
->fpscr
&= ~(0x0F << FPSCR_FPRF
);
1619 env
->fpscr
|= ret
<< FPSCR_FPRF
;
1620 env
->crf
[crfD
] = ret
;
1621 if (unlikely (ret
== 0x01UL
)) {
1622 if (float64_is_signaling_nan(farg1
.d
) ||
1623 float64_is_signaling_nan(farg2
.d
)) {
1624 /* sNaN comparison */
1625 fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN
|
1626 POWERPC_EXCP_FP_VXVC
);
1628 /* qNaN comparison */
1629 fload_invalid_op_excp(POWERPC_EXCP_FP_VXVC
);
1634 #if !defined (CONFIG_USER_ONLY)
1635 void helper_store_msr (target_ulong val
)
1637 val
= hreg_store_msr(env
, val
, 0);
1639 env
->interrupt_request
|= CPU_INTERRUPT_EXITTB
;
1640 helper_raise_exception(val
);
1644 static always_inline
void do_rfi (target_ulong nip
, target_ulong msr
,
1645 target_ulong msrm
, int keep_msrh
)
1647 #if defined(TARGET_PPC64)
1648 if (msr
& (1ULL << MSR_SF
)) {
1649 nip
= (uint64_t)nip
;
1650 msr
&= (uint64_t)msrm
;
1652 nip
= (uint32_t)nip
;
1653 msr
= (uint32_t)(msr
& msrm
);
1655 msr
|= env
->msr
& ~((uint64_t)0xFFFFFFFF);
1658 nip
= (uint32_t)nip
;
1659 msr
&= (uint32_t)msrm
;
1661 /* XXX: beware: this is false if VLE is supported */
1662 env
->nip
= nip
& ~((target_ulong
)0x00000003);
1663 hreg_store_msr(env
, msr
, 1);
1664 #if defined (DEBUG_OP)
1665 cpu_dump_rfi(env
->nip
, env
->msr
);
1667 /* No need to raise an exception here,
1668 * as rfi is always the last insn of a TB
1670 env
->interrupt_request
|= CPU_INTERRUPT_EXITTB
;
1673 void helper_rfi (void)
1675 do_rfi(env
->spr
[SPR_SRR0
], env
->spr
[SPR_SRR1
],
1676 ~((target_ulong
)0xFFFF0000), 1);
1679 #if defined(TARGET_PPC64)
1680 void helper_rfid (void)
1682 do_rfi(env
->spr
[SPR_SRR0
], env
->spr
[SPR_SRR1
],
1683 ~((target_ulong
)0xFFFF0000), 0);
1686 void helper_hrfid (void)
1688 do_rfi(env
->spr
[SPR_HSRR0
], env
->spr
[SPR_HSRR1
],
1689 ~((target_ulong
)0xFFFF0000), 0);
1694 void helper_tw (target_ulong arg1
, target_ulong arg2
, uint32_t flags
)
1696 if (!likely(!(((int32_t)arg1
< (int32_t)arg2
&& (flags
& 0x10)) ||
1697 ((int32_t)arg1
> (int32_t)arg2
&& (flags
& 0x08)) ||
1698 ((int32_t)arg1
== (int32_t)arg2
&& (flags
& 0x04)) ||
1699 ((uint32_t)arg1
< (uint32_t)arg2
&& (flags
& 0x02)) ||
1700 ((uint32_t)arg1
> (uint32_t)arg2
&& (flags
& 0x01))))) {
1701 helper_raise_exception_err(POWERPC_EXCP_PROGRAM
, POWERPC_EXCP_TRAP
);
1705 #if defined(TARGET_PPC64)
1706 void helper_td (target_ulong arg1
, target_ulong arg2
, uint32_t flags
)
1708 if (!likely(!(((int64_t)arg1
< (int64_t)arg2
&& (flags
& 0x10)) ||
1709 ((int64_t)arg1
> (int64_t)arg2
&& (flags
& 0x08)) ||
1710 ((int64_t)arg1
== (int64_t)arg2
&& (flags
& 0x04)) ||
1711 ((uint64_t)arg1
< (uint64_t)arg2
&& (flags
& 0x02)) ||
1712 ((uint64_t)arg1
> (uint64_t)arg2
&& (flags
& 0x01)))))
1713 helper_raise_exception_err(POWERPC_EXCP_PROGRAM
, POWERPC_EXCP_TRAP
);
1717 /*****************************************************************************/
1718 /* PowerPC 601 specific instructions (POWER bridge) */
1720 target_ulong
helper_clcs (uint32_t arg
)
1724 /* Instruction cache line size */
1725 return env
->icache_line_size
;
1728 /* Data cache line size */
1729 return env
->dcache_line_size
;
1732 /* Minimum cache line size */
1733 return (env
->icache_line_size
< env
->dcache_line_size
) ?
1734 env
->icache_line_size
: env
->dcache_line_size
;
1737 /* Maximum cache line size */
1738 return (env
->icache_line_size
> env
->dcache_line_size
) ?
1739 env
->icache_line_size
: env
->dcache_line_size
;
1748 target_ulong
helper_div (target_ulong arg1
, target_ulong arg2
)
1750 uint64_t tmp
= (uint64_t)arg1
<< 32 | env
->spr
[SPR_MQ
];
1752 if (((int32_t)tmp
== INT32_MIN
&& (int32_t)arg2
== (int32_t)-1) ||
1753 (int32_t)arg2
== 0) {
1754 env
->spr
[SPR_MQ
] = 0;
1757 env
->spr
[SPR_MQ
] = tmp
% arg2
;
1758 return tmp
/ (int32_t)arg2
;
1762 target_ulong
helper_divo (target_ulong arg1
, target_ulong arg2
)
1764 uint64_t tmp
= (uint64_t)arg1
<< 32 | env
->spr
[SPR_MQ
];
1766 if (((int32_t)tmp
== INT32_MIN
&& (int32_t)arg2
== (int32_t)-1) ||
1767 (int32_t)arg2
== 0) {
1768 env
->xer
|= (1 << XER_OV
) | (1 << XER_SO
);
1769 env
->spr
[SPR_MQ
] = 0;
1772 env
->spr
[SPR_MQ
] = tmp
% arg2
;
1773 tmp
/= (int32_t)arg2
;
1774 if ((int32_t)tmp
!= tmp
) {
1775 env
->xer
|= (1 << XER_OV
) | (1 << XER_SO
);
1777 env
->xer
&= ~(1 << XER_OV
);
1783 target_ulong
helper_divs (target_ulong arg1
, target_ulong arg2
)
1785 if (((int32_t)arg1
== INT32_MIN
&& (int32_t)arg2
== (int32_t)-1) ||
1786 (int32_t)arg2
== 0) {
1787 env
->spr
[SPR_MQ
] = 0;
1790 env
->spr
[SPR_MQ
] = (int32_t)arg1
% (int32_t)arg2
;
1791 return (int32_t)arg1
/ (int32_t)arg2
;
1795 target_ulong
helper_divso (target_ulong arg1
, target_ulong arg2
)
1797 if (((int32_t)arg1
== INT32_MIN
&& (int32_t)arg2
== (int32_t)-1) ||
1798 (int32_t)arg2
== 0) {
1799 env
->xer
|= (1 << XER_OV
) | (1 << XER_SO
);
1800 env
->spr
[SPR_MQ
] = 0;
1803 env
->xer
&= ~(1 << XER_OV
);
1804 env
->spr
[SPR_MQ
] = (int32_t)arg1
% (int32_t)arg2
;
1805 return (int32_t)arg1
/ (int32_t)arg2
;
1809 #if !defined (CONFIG_USER_ONLY)
1810 target_ulong
helper_rac (target_ulong addr
)
1814 target_ulong ret
= 0;
1816 /* We don't have to generate many instances of this instruction,
1817 * as rac is supervisor only.
1819 /* XXX: FIX THIS: Pretend we have no BAT */
1820 nb_BATs
= env
->nb_BATs
;
1822 if (get_physical_address(env
, &ctx
, addr
, 0, ACCESS_INT
) == 0)
1824 env
->nb_BATs
= nb_BATs
;
1828 void helper_rfsvc (void)
1830 do_rfi(env
->lr
, env
->ctr
, 0x0000FFFF, 0);
1834 /*****************************************************************************/
1835 /* 602 specific instructions */
1836 /* mfrom is the most crazy instruction ever seen, imho ! */
1837 /* Real implementation uses a ROM table. Do the same */
1838 /* Extremly decomposed:
1840 * return 256 * log10(10 + 1.0) + 0.5
1842 #if !defined (CONFIG_USER_ONLY)
1843 target_ulong
helper_602_mfrom (target_ulong arg
)
1845 if (likely(arg
< 602)) {
1846 #include "mfrom_table.c"
1847 return mfrom_ROM_table
[arg
];
1854 /*****************************************************************************/
1855 /* Embedded PowerPC specific helpers */
1857 /* XXX: to be improved to check access rights when in user-mode */
1858 target_ulong
helper_load_dcr (target_ulong dcrn
)
1860 target_ulong val
= 0;
1862 if (unlikely(env
->dcr_env
== NULL
)) {
1863 if (loglevel
!= 0) {
1864 fprintf(logfile
, "No DCR environment\n");
1866 helper_raise_exception_err(POWERPC_EXCP_PROGRAM
,
1867 POWERPC_EXCP_INVAL
| POWERPC_EXCP_INVAL_INVAL
);
1868 } else if (unlikely(ppc_dcr_read(env
->dcr_env
, dcrn
, &val
) != 0)) {
1869 if (loglevel
!= 0) {
1870 fprintf(logfile
, "DCR read error %d %03x\n", (int)dcrn
, (int)dcrn
);
1872 helper_raise_exception_err(POWERPC_EXCP_PROGRAM
,
1873 POWERPC_EXCP_INVAL
| POWERPC_EXCP_PRIV_REG
);
1878 void helper_store_dcr (target_ulong dcrn
, target_ulong val
)
1880 if (unlikely(env
->dcr_env
== NULL
)) {
1881 if (loglevel
!= 0) {
1882 fprintf(logfile
, "No DCR environment\n");
1884 helper_raise_exception_err(POWERPC_EXCP_PROGRAM
,
1885 POWERPC_EXCP_INVAL
| POWERPC_EXCP_INVAL_INVAL
);
1886 } else if (unlikely(ppc_dcr_write(env
->dcr_env
, dcrn
, val
) != 0)) {
1887 if (loglevel
!= 0) {
1888 fprintf(logfile
, "DCR write error %d %03x\n", (int)dcrn
, (int)dcrn
);
1890 helper_raise_exception_err(POWERPC_EXCP_PROGRAM
,
1891 POWERPC_EXCP_INVAL
| POWERPC_EXCP_PRIV_REG
);
1895 #if !defined(CONFIG_USER_ONLY)
1896 void helper_40x_rfci (void)
1898 do_rfi(env
->spr
[SPR_40x_SRR2
], env
->spr
[SPR_40x_SRR3
],
1899 ~((target_ulong
)0xFFFF0000), 0);
1902 void helper_rfci (void)
1904 do_rfi(env
->spr
[SPR_BOOKE_CSRR0
], SPR_BOOKE_CSRR1
,
1905 ~((target_ulong
)0x3FFF0000), 0);
1908 void helper_rfdi (void)
1910 do_rfi(env
->spr
[SPR_BOOKE_DSRR0
], SPR_BOOKE_DSRR1
,
1911 ~((target_ulong
)0x3FFF0000), 0);
1914 void helper_rfmci (void)
1916 do_rfi(env
->spr
[SPR_BOOKE_MCSRR0
], SPR_BOOKE_MCSRR1
,
1917 ~((target_ulong
)0x3FFF0000), 0);
1922 target_ulong
helper_dlmzb (target_ulong high
, target_ulong low
, uint32_t update_Rc
)
1928 for (mask
= 0xFF000000; mask
!= 0; mask
= mask
>> 8) {
1929 if ((high
& mask
) == 0) {
1937 for (mask
= 0xFF000000; mask
!= 0; mask
= mask
>> 8) {
1938 if ((low
& mask
) == 0) {
1950 env
->xer
= (env
->xer
& ~0x7F) | i
;
1952 env
->crf
[0] |= xer_so
;
1957 /*****************************************************************************/
1958 /* Altivec extension helpers */
1959 #if defined(WORDS_BIGENDIAN)
1967 #if defined(WORDS_BIGENDIAN)
1968 #define VECTOR_FOR_INORDER_I(index, element) \
1969 for (index = 0; index < ARRAY_SIZE(r->element); index++)
1971 #define VECTOR_FOR_INORDER_I(index, element) \
1972 for (index = ARRAY_SIZE(r->element)-1; index >= 0; index--)
1975 /* Saturating arithmetic helpers. */
1976 #define SATCVT(from, to, from_type, to_type, min, max, use_min, use_max) \
1977 static always_inline to_type cvt##from##to (from_type x, int *sat) \
1980 if (use_min && x < min) { \
1983 } else if (use_max && x > max) { \
1991 SATCVT(sh
, sb
, int16_t, int8_t, INT8_MIN
, INT8_MAX
, 1, 1)
1992 SATCVT(sw
, sh
, int32_t, int16_t, INT16_MIN
, INT16_MAX
, 1, 1)
1993 SATCVT(sd
, sw
, int64_t, int32_t, INT32_MIN
, INT32_MAX
, 1, 1)
1994 SATCVT(uh
, ub
, uint16_t, uint8_t, 0, UINT8_MAX
, 0, 1)
1995 SATCVT(uw
, uh
, uint32_t, uint16_t, 0, UINT16_MAX
, 0, 1)
1996 SATCVT(ud
, uw
, uint64_t, uint32_t, 0, UINT32_MAX
, 0, 1)
1997 SATCVT(sh
, ub
, int16_t, uint8_t, 0, UINT8_MAX
, 1, 1)
1998 SATCVT(sw
, uh
, int32_t, uint16_t, 0, UINT16_MAX
, 1, 1)
1999 SATCVT(sd
, uw
, int64_t, uint32_t, 0, UINT32_MAX
, 1, 1)
2002 void helper_lvsl (ppc_avr_t
*r
, target_ulong sh
)
2004 int i
, j
= (sh
& 0xf);
2006 VECTOR_FOR_INORDER_I (i
, u8
) {
2011 void helper_lvsr (ppc_avr_t
*r
, target_ulong sh
)
2013 int i
, j
= 0x10 - (sh
& 0xf);
2015 VECTOR_FOR_INORDER_I (i
, u8
) {
2020 void helper_vaddcuw (ppc_avr_t
*r
, ppc_avr_t
*a
, ppc_avr_t
*b
)
2023 for (i
= 0; i
< ARRAY_SIZE(r
->u32
); i
++) {
2024 r
->u32
[i
] = ~a
->u32
[i
] < b
->u32
[i
];
2028 #define VARITH_DO(name, op, element) \
2029 void helper_v##name (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \
2032 for (i = 0; i < ARRAY_SIZE(r->element); i++) { \
2033 r->element[i] = a->element[i] op b->element[i]; \
2036 #define VARITH(suffix, element) \
2037 VARITH_DO(add##suffix, +, element) \
2038 VARITH_DO(sub##suffix, -, element)
2045 #define VAVG_DO(name, element, etype) \
2046 void helper_v##name (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \
2049 for (i = 0; i < ARRAY_SIZE(r->element); i++) { \
2050 etype x = (etype)a->element[i] + (etype)b->element[i] + 1; \
2051 r->element[i] = x >> 1; \
2055 #define VAVG(type, signed_element, signed_type, unsigned_element, unsigned_type) \
2056 VAVG_DO(avgs##type, signed_element, signed_type) \
2057 VAVG_DO(avgu##type, unsigned_element, unsigned_type)
2058 VAVG(b
, s8
, int16_t, u8
, uint16_t)
2059 VAVG(h
, s16
, int32_t, u16
, uint32_t)
2060 VAVG(w
, s32
, int64_t, u32
, uint64_t)
2064 void helper_vmhaddshs (ppc_avr_t
*r
, ppc_avr_t
*a
, ppc_avr_t
*b
, ppc_avr_t
*c
)
2069 for (i
= 0; i
< ARRAY_SIZE(r
->s16
); i
++) {
2070 int32_t prod
= a
->s16
[i
] * b
->s16
[i
];
2071 int32_t t
= (int32_t)c
->s16
[i
] + (prod
>> 15);
2072 r
->s16
[i
] = cvtswsh (t
, &sat
);
2076 env
->vscr
|= (1 << VSCR_SAT
);
2080 void helper_vmhraddshs (ppc_avr_t
*r
, ppc_avr_t
*a
, ppc_avr_t
*b
, ppc_avr_t
*c
)
2085 for (i
= 0; i
< ARRAY_SIZE(r
->s16
); i
++) {
2086 int32_t prod
= a
->s16
[i
] * b
->s16
[i
] + 0x00004000;
2087 int32_t t
= (int32_t)c
->s16
[i
] + (prod
>> 15);
2088 r
->s16
[i
] = cvtswsh (t
, &sat
);
2092 env
->vscr
|= (1 << VSCR_SAT
);
2096 #define VMINMAX_DO(name, compare, element) \
2097 void helper_v##name (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \
2100 for (i = 0; i < ARRAY_SIZE(r->element); i++) { \
2101 if (a->element[i] compare b->element[i]) { \
2102 r->element[i] = b->element[i]; \
2104 r->element[i] = a->element[i]; \
2108 #define VMINMAX(suffix, element) \
2109 VMINMAX_DO(min##suffix, >, element) \
2110 VMINMAX_DO(max##suffix, <, element)
2120 #define VMRG_DO(name, element, highp) \
2121 void helper_v##name (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \
2125 size_t n_elems = ARRAY_SIZE(r->element); \
2126 for (i = 0; i < n_elems/2; i++) { \
2128 result.element[i*2+HI_IDX] = a->element[i]; \
2129 result.element[i*2+LO_IDX] = b->element[i]; \
2131 result.element[n_elems - i*2 - (1+HI_IDX)] = b->element[n_elems - i - 1]; \
2132 result.element[n_elems - i*2 - (1+LO_IDX)] = a->element[n_elems - i - 1]; \
2137 #if defined(WORDS_BIGENDIAN)
2144 #define VMRG(suffix, element) \
2145 VMRG_DO(mrgl##suffix, element, MRGHI) \
2146 VMRG_DO(mrgh##suffix, element, MRGLO)
2155 void helper_vmsummbm (ppc_avr_t
*r
, ppc_avr_t
*a
, ppc_avr_t
*b
, ppc_avr_t
*c
)
2160 for (i
= 0; i
< ARRAY_SIZE(r
->s8
); i
++) {
2161 prod
[i
] = (int32_t)a
->s8
[i
] * b
->u8
[i
];
2164 VECTOR_FOR_INORDER_I(i
, s32
) {
2165 r
->s32
[i
] = c
->s32
[i
] + prod
[4*i
] + prod
[4*i
+1] + prod
[4*i
+2] + prod
[4*i
+3];
2169 void helper_vmsumshm (ppc_avr_t
*r
, ppc_avr_t
*a
, ppc_avr_t
*b
, ppc_avr_t
*c
)
2174 for (i
= 0; i
< ARRAY_SIZE(r
->s16
); i
++) {
2175 prod
[i
] = a
->s16
[i
] * b
->s16
[i
];
2178 VECTOR_FOR_INORDER_I(i
, s32
) {
2179 r
->s32
[i
] = c
->s32
[i
] + prod
[2*i
] + prod
[2*i
+1];
2183 void helper_vmsumshs (ppc_avr_t
*r
, ppc_avr_t
*a
, ppc_avr_t
*b
, ppc_avr_t
*c
)
2189 for (i
= 0; i
< ARRAY_SIZE(r
->s16
); i
++) {
2190 prod
[i
] = (int32_t)a
->s16
[i
] * b
->s16
[i
];
2193 VECTOR_FOR_INORDER_I (i
, s32
) {
2194 int64_t t
= (int64_t)c
->s32
[i
] + prod
[2*i
] + prod
[2*i
+1];
2195 r
->u32
[i
] = cvtsdsw(t
, &sat
);
2199 env
->vscr
|= (1 << VSCR_SAT
);
2203 void helper_vmsumubm (ppc_avr_t
*r
, ppc_avr_t
*a
, ppc_avr_t
*b
, ppc_avr_t
*c
)
2208 for (i
= 0; i
< ARRAY_SIZE(r
->u8
); i
++) {
2209 prod
[i
] = a
->u8
[i
] * b
->u8
[i
];
2212 VECTOR_FOR_INORDER_I(i
, u32
) {
2213 r
->u32
[i
] = c
->u32
[i
] + prod
[4*i
] + prod
[4*i
+1] + prod
[4*i
+2] + prod
[4*i
+3];
2217 void helper_vmsumuhm (ppc_avr_t
*r
, ppc_avr_t
*a
, ppc_avr_t
*b
, ppc_avr_t
*c
)
2222 for (i
= 0; i
< ARRAY_SIZE(r
->u16
); i
++) {
2223 prod
[i
] = a
->u16
[i
] * b
->u16
[i
];
2226 VECTOR_FOR_INORDER_I(i
, u32
) {
2227 r
->u32
[i
] = c
->u32
[i
] + prod
[2*i
] + prod
[2*i
+1];
2231 void helper_vmsumuhs (ppc_avr_t
*r
, ppc_avr_t
*a
, ppc_avr_t
*b
, ppc_avr_t
*c
)
2237 for (i
= 0; i
< ARRAY_SIZE(r
->u16
); i
++) {
2238 prod
[i
] = a
->u16
[i
] * b
->u16
[i
];
2241 VECTOR_FOR_INORDER_I (i
, s32
) {
2242 uint64_t t
= (uint64_t)c
->u32
[i
] + prod
[2*i
] + prod
[2*i
+1];
2243 r
->u32
[i
] = cvtuduw(t
, &sat
);
2247 env
->vscr
|= (1 << VSCR_SAT
);
2251 #define VMUL_DO(name, mul_element, prod_element, evenp) \
2252 void helper_v##name (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \
2255 VECTOR_FOR_INORDER_I(i, prod_element) { \
2257 r->prod_element[i] = a->mul_element[i*2+HI_IDX] * b->mul_element[i*2+HI_IDX]; \
2259 r->prod_element[i] = a->mul_element[i*2+LO_IDX] * b->mul_element[i*2+LO_IDX]; \
2263 #define VMUL(suffix, mul_element, prod_element) \
2264 VMUL_DO(mule##suffix, mul_element, prod_element, 1) \
2265 VMUL_DO(mulo##suffix, mul_element, prod_element, 0)
2273 void helper_vperm (ppc_avr_t
*r
, ppc_avr_t
*a
, ppc_avr_t
*b
, ppc_avr_t
*c
)
2277 VECTOR_FOR_INORDER_I (i
, u8
) {
2278 int s
= c
->u8
[i
] & 0x1f;
2279 #if defined(WORDS_BIGENDIAN)
2280 int index
= s
& 0xf;
2282 int index
= 15 - (s
& 0xf);
2285 result
.u8
[i
] = b
->u8
[index
];
2287 result
.u8
[i
] = a
->u8
[index
];
2293 #if defined(WORDS_BIGENDIAN)
2298 void helper_vpkpx (ppc_avr_t
*r
, ppc_avr_t
*a
, ppc_avr_t
*b
)
2302 #if defined(WORDS_BIGENDIAN)
2303 const ppc_avr_t
*x
[2] = { a
, b
};
2305 const ppc_avr_t
*x
[2] = { b
, a
};
2308 VECTOR_FOR_INORDER_I (i
, u64
) {
2309 VECTOR_FOR_INORDER_I (j
, u32
){
2310 uint32_t e
= x
[i
]->u32
[j
];
2311 result
.u16
[4*i
+j
] = (((e
>> 9) & 0xfc00) |
2312 ((e
>> 6) & 0x3e0) |
2319 #define VPK(suffix, from, to, cvt, dosat) \
2320 void helper_vpk##suffix (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \
2325 ppc_avr_t *a0 = PKBIG ? a : b; \
2326 ppc_avr_t *a1 = PKBIG ? b : a; \
2327 VECTOR_FOR_INORDER_I (i, from) { \
2328 result.to[i] = cvt(a0->from[i], &sat); \
2329 result.to[i+ARRAY_SIZE(r->from)] = cvt(a1->from[i], &sat); \
2332 if (dosat && sat) { \
2333 env->vscr |= (1 << VSCR_SAT); \
2337 VPK(shss
, s16
, s8
, cvtshsb
, 1)
2338 VPK(shus
, s16
, u8
, cvtshub
, 1)
2339 VPK(swss
, s32
, s16
, cvtswsh
, 1)
2340 VPK(swus
, s32
, u16
, cvtswuh
, 1)
2341 VPK(uhus
, u16
, u8
, cvtuhub
, 1)
2342 VPK(uwus
, u32
, u16
, cvtuwuh
, 1)
2343 VPK(uhum
, u16
, u8
, I
, 0)
2344 VPK(uwum
, u32
, u16
, I
, 0)
2349 #define VROTATE(suffix, element) \
2350 void helper_vrl##suffix (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \
2353 for (i = 0; i < ARRAY_SIZE(r->element); i++) { \
2354 unsigned int mask = ((1 << (3 + (sizeof (a->element[0]) >> 1))) - 1); \
2355 unsigned int shift = b->element[i] & mask; \
2356 r->element[i] = (a->element[i] << shift) | (a->element[i] >> (sizeof(a->element[0]) * 8 - shift)); \
2364 void helper_vsel (ppc_avr_t
*r
, ppc_avr_t
*a
, ppc_avr_t
*b
, ppc_avr_t
*c
)
2366 r
->u64
[0] = (a
->u64
[0] & ~c
->u64
[0]) | (b
->u64
[0] & c
->u64
[0]);
2367 r
->u64
[1] = (a
->u64
[1] & ~c
->u64
[1]) | (b
->u64
[1] & c
->u64
[1]);
2370 #define VSL(suffix, element) \
2371 void helper_vsl##suffix (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \
2374 for (i = 0; i < ARRAY_SIZE(r->element); i++) { \
2375 unsigned int mask = ((1 << (3 + (sizeof (a->element[0]) >> 1))) - 1); \
2376 unsigned int shift = b->element[i] & mask; \
2377 r->element[i] = a->element[i] << shift; \
2385 void helper_vsldoi (ppc_avr_t
*r
, ppc_avr_t
*a
, ppc_avr_t
*b
, uint32_t shift
)
2387 int sh
= shift
& 0xf;
2391 #if defined(WORDS_BIGENDIAN)
2392 for (i
= 0; i
< ARRAY_SIZE(r
->u8
); i
++) {
2395 result
.u8
[i
] = b
->u8
[index
-0x10];
2397 result
.u8
[i
] = a
->u8
[index
];
2401 for (i
= 0; i
< ARRAY_SIZE(r
->u8
); i
++) {
2402 int index
= (16 - sh
) + i
;
2404 result
.u8
[i
] = a
->u8
[index
-0x10];
2406 result
.u8
[i
] = b
->u8
[index
];
2413 void helper_vslo (ppc_avr_t
*r
, ppc_avr_t
*a
, ppc_avr_t
*b
)
2415 int sh
= (b
->u8
[LO_IDX
*0xf] >> 3) & 0xf;
2417 #if defined (WORDS_BIGENDIAN)
2418 memmove (&r
->u8
[0], &a
->u8
[sh
], 16-sh
);
2419 memset (&r
->u8
[16-sh
], 0, sh
);
2421 memmove (&r
->u8
[sh
], &a
->u8
[0], 16-sh
);
2422 memset (&r
->u8
[0], 0, sh
);
2426 /* Experimental testing shows that hardware masks the immediate. */
2427 #define _SPLAT_MASKED(element) (splat & (ARRAY_SIZE(r->element) - 1))
2428 #if defined(WORDS_BIGENDIAN)
2429 #define SPLAT_ELEMENT(element) _SPLAT_MASKED(element)
2431 #define SPLAT_ELEMENT(element) (ARRAY_SIZE(r->element)-1 - _SPLAT_MASKED(element))
2433 #define VSPLT(suffix, element) \
2434 void helper_vsplt##suffix (ppc_avr_t *r, ppc_avr_t *b, uint32_t splat) \
2436 uint32_t s = b->element[SPLAT_ELEMENT(element)]; \
2438 for (i = 0; i < ARRAY_SIZE(r->element); i++) { \
2439 r->element[i] = s; \
2446 #undef SPLAT_ELEMENT
2447 #undef _SPLAT_MASKED
2449 #define VSR(suffix, element) \
2450 void helper_vsr##suffix (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \
2453 for (i = 0; i < ARRAY_SIZE(r->element); i++) { \
2454 unsigned int mask = ((1 << (3 + (sizeof (a->element[0]) >> 1))) - 1); \
2455 unsigned int shift = b->element[i] & mask; \
2456 r->element[i] = a->element[i] >> shift; \
2467 void helper_vsro (ppc_avr_t
*r
, ppc_avr_t
*a
, ppc_avr_t
*b
)
2469 int sh
= (b
->u8
[LO_IDX
*0xf] >> 3) & 0xf;
2471 #if defined (WORDS_BIGENDIAN)
2472 memmove (&r
->u8
[sh
], &a
->u8
[0], 16-sh
);
2473 memset (&r
->u8
[0], 0, sh
);
2475 memmove (&r
->u8
[0], &a
->u8
[sh
], 16-sh
);
2476 memset (&r
->u8
[16-sh
], 0, sh
);
2480 void helper_vsubcuw (ppc_avr_t
*r
, ppc_avr_t
*a
, ppc_avr_t
*b
)
2483 for (i
= 0; i
< ARRAY_SIZE(r
->u32
); i
++) {
2484 r
->u32
[i
] = a
->u32
[i
] >= b
->u32
[i
];
2488 #if defined(WORDS_BIGENDIAN)
2495 #define VUPKPX(suffix, hi) \
2496 void helper_vupk##suffix (ppc_avr_t *r, ppc_avr_t *b) \
2500 for (i = 0; i < ARRAY_SIZE(r->u32); i++) { \
2501 uint16_t e = b->u16[hi ? i : i+4]; \
2502 uint8_t a = (e >> 15) ? 0xff : 0; \
2503 uint8_t r = (e >> 10) & 0x1f; \
2504 uint8_t g = (e >> 5) & 0x1f; \
2505 uint8_t b = e & 0x1f; \
2506 result.u32[i] = (a << 24) | (r << 16) | (g << 8) | b; \
2514 #define VUPK(suffix, unpacked, packee, hi) \
2515 void helper_vupk##suffix (ppc_avr_t *r, ppc_avr_t *b) \
2520 for (i = 0; i < ARRAY_SIZE(r->unpacked); i++) { \
2521 result.unpacked[i] = b->packee[i]; \
2524 for (i = ARRAY_SIZE(r->unpacked); i < ARRAY_SIZE(r->packee); i++) { \
2525 result.unpacked[i-ARRAY_SIZE(r->unpacked)] = b->packee[i]; \
2530 VUPK(hsb
, s16
, s8
, UPKHI
)
2531 VUPK(hsh
, s32
, s16
, UPKHI
)
2532 VUPK(lsb
, s16
, s8
, UPKLO
)
2533 VUPK(lsh
, s32
, s16
, UPKLO
)
2538 #undef VECTOR_FOR_INORDER_I
2542 /*****************************************************************************/
2543 /* SPE extension helpers */
2544 /* Use a table to make this quicker */
2545 static uint8_t hbrev
[16] = {
2546 0x0, 0x8, 0x4, 0xC, 0x2, 0xA, 0x6, 0xE,
2547 0x1, 0x9, 0x5, 0xD, 0x3, 0xB, 0x7, 0xF,
2550 static always_inline
uint8_t byte_reverse (uint8_t val
)
2552 return hbrev
[val
>> 4] | (hbrev
[val
& 0xF] << 4);
2555 static always_inline
uint32_t word_reverse (uint32_t val
)
2557 return byte_reverse(val
>> 24) | (byte_reverse(val
>> 16) << 8) |
2558 (byte_reverse(val
>> 8) << 16) | (byte_reverse(val
) << 24);
2561 #define MASKBITS 16 // Random value - to be fixed (implementation dependant)
2562 target_ulong
helper_brinc (target_ulong arg1
, target_ulong arg2
)
2564 uint32_t a
, b
, d
, mask
;
2566 mask
= UINT32_MAX
>> (32 - MASKBITS
);
2569 d
= word_reverse(1 + word_reverse(a
| ~b
));
2570 return (arg1
& ~mask
) | (d
& b
);
2573 uint32_t helper_cntlsw32 (uint32_t val
)
2575 if (val
& 0x80000000)
2581 uint32_t helper_cntlzw32 (uint32_t val
)
2586 /* Single-precision floating-point conversions */
2587 static always_inline
uint32_t efscfsi (uint32_t val
)
2591 u
.f
= int32_to_float32(val
, &env
->spe_status
);
2596 static always_inline
uint32_t efscfui (uint32_t val
)
2600 u
.f
= uint32_to_float32(val
, &env
->spe_status
);
2605 static always_inline
int32_t efsctsi (uint32_t val
)
2610 /* NaN are not treated the same way IEEE 754 does */
2611 if (unlikely(float32_is_nan(u
.f
)))
2614 return float32_to_int32(u
.f
, &env
->spe_status
);
2617 static always_inline
uint32_t efsctui (uint32_t val
)
2622 /* NaN are not treated the same way IEEE 754 does */
2623 if (unlikely(float32_is_nan(u
.f
)))
2626 return float32_to_uint32(u
.f
, &env
->spe_status
);
2629 static always_inline
uint32_t efsctsiz (uint32_t val
)
2634 /* NaN are not treated the same way IEEE 754 does */
2635 if (unlikely(float32_is_nan(u
.f
)))
2638 return float32_to_int32_round_to_zero(u
.f
, &env
->spe_status
);
2641 static always_inline
uint32_t efsctuiz (uint32_t val
)
2646 /* NaN are not treated the same way IEEE 754 does */
2647 if (unlikely(float32_is_nan(u
.f
)))
2650 return float32_to_uint32_round_to_zero(u
.f
, &env
->spe_status
);
2653 static always_inline
uint32_t efscfsf (uint32_t val
)
2658 u
.f
= int32_to_float32(val
, &env
->spe_status
);
2659 tmp
= int64_to_float32(1ULL << 32, &env
->spe_status
);
2660 u
.f
= float32_div(u
.f
, tmp
, &env
->spe_status
);
2665 static always_inline
uint32_t efscfuf (uint32_t val
)
2670 u
.f
= uint32_to_float32(val
, &env
->spe_status
);
2671 tmp
= uint64_to_float32(1ULL << 32, &env
->spe_status
);
2672 u
.f
= float32_div(u
.f
, tmp
, &env
->spe_status
);
2677 static always_inline
uint32_t efsctsf (uint32_t val
)
2683 /* NaN are not treated the same way IEEE 754 does */
2684 if (unlikely(float32_is_nan(u
.f
)))
2686 tmp
= uint64_to_float32(1ULL << 32, &env
->spe_status
);
2687 u
.f
= float32_mul(u
.f
, tmp
, &env
->spe_status
);
2689 return float32_to_int32(u
.f
, &env
->spe_status
);
2692 static always_inline
uint32_t efsctuf (uint32_t val
)
2698 /* NaN are not treated the same way IEEE 754 does */
2699 if (unlikely(float32_is_nan(u
.f
)))
2701 tmp
= uint64_to_float32(1ULL << 32, &env
->spe_status
);
2702 u
.f
= float32_mul(u
.f
, tmp
, &env
->spe_status
);
2704 return float32_to_uint32(u
.f
, &env
->spe_status
);
2707 #define HELPER_SPE_SINGLE_CONV(name) \
2708 uint32_t helper_e##name (uint32_t val) \
2710 return e##name(val); \
2713 HELPER_SPE_SINGLE_CONV(fscfsi
);
2715 HELPER_SPE_SINGLE_CONV(fscfui
);
2717 HELPER_SPE_SINGLE_CONV(fscfuf
);
2719 HELPER_SPE_SINGLE_CONV(fscfsf
);
2721 HELPER_SPE_SINGLE_CONV(fsctsi
);
2723 HELPER_SPE_SINGLE_CONV(fsctui
);
2725 HELPER_SPE_SINGLE_CONV(fsctsiz
);
2727 HELPER_SPE_SINGLE_CONV(fsctuiz
);
2729 HELPER_SPE_SINGLE_CONV(fsctsf
);
2731 HELPER_SPE_SINGLE_CONV(fsctuf
);
2733 #define HELPER_SPE_VECTOR_CONV(name) \
2734 uint64_t helper_ev##name (uint64_t val) \
2736 return ((uint64_t)e##name(val >> 32) << 32) | \
2737 (uint64_t)e##name(val); \
2740 HELPER_SPE_VECTOR_CONV(fscfsi
);
2742 HELPER_SPE_VECTOR_CONV(fscfui
);
2744 HELPER_SPE_VECTOR_CONV(fscfuf
);
2746 HELPER_SPE_VECTOR_CONV(fscfsf
);
2748 HELPER_SPE_VECTOR_CONV(fsctsi
);
2750 HELPER_SPE_VECTOR_CONV(fsctui
);
2752 HELPER_SPE_VECTOR_CONV(fsctsiz
);
2754 HELPER_SPE_VECTOR_CONV(fsctuiz
);
2756 HELPER_SPE_VECTOR_CONV(fsctsf
);
2758 HELPER_SPE_VECTOR_CONV(fsctuf
);
2760 /* Single-precision floating-point arithmetic */
2761 static always_inline
uint32_t efsadd (uint32_t op1
, uint32_t op2
)
2766 u1
.f
= float32_add(u1
.f
, u2
.f
, &env
->spe_status
);
2770 static always_inline
uint32_t efssub (uint32_t op1
, uint32_t op2
)
2775 u1
.f
= float32_sub(u1
.f
, u2
.f
, &env
->spe_status
);
2779 static always_inline
uint32_t efsmul (uint32_t op1
, uint32_t op2
)
2784 u1
.f
= float32_mul(u1
.f
, u2
.f
, &env
->spe_status
);
2788 static always_inline
uint32_t efsdiv (uint32_t op1
, uint32_t op2
)
2793 u1
.f
= float32_div(u1
.f
, u2
.f
, &env
->spe_status
);
2797 #define HELPER_SPE_SINGLE_ARITH(name) \
2798 uint32_t helper_e##name (uint32_t op1, uint32_t op2) \
2800 return e##name(op1, op2); \
2803 HELPER_SPE_SINGLE_ARITH(fsadd
);
2805 HELPER_SPE_SINGLE_ARITH(fssub
);
2807 HELPER_SPE_SINGLE_ARITH(fsmul
);
2809 HELPER_SPE_SINGLE_ARITH(fsdiv
);
2811 #define HELPER_SPE_VECTOR_ARITH(name) \
2812 uint64_t helper_ev##name (uint64_t op1, uint64_t op2) \
2814 return ((uint64_t)e##name(op1 >> 32, op2 >> 32) << 32) | \
2815 (uint64_t)e##name(op1, op2); \
2818 HELPER_SPE_VECTOR_ARITH(fsadd
);
2820 HELPER_SPE_VECTOR_ARITH(fssub
);
2822 HELPER_SPE_VECTOR_ARITH(fsmul
);
2824 HELPER_SPE_VECTOR_ARITH(fsdiv
);
2826 /* Single-precision floating-point comparisons */
2827 static always_inline
uint32_t efststlt (uint32_t op1
, uint32_t op2
)
2832 return float32_lt(u1
.f
, u2
.f
, &env
->spe_status
) ? 4 : 0;
2835 static always_inline
uint32_t efststgt (uint32_t op1
, uint32_t op2
)
2840 return float32_le(u1
.f
, u2
.f
, &env
->spe_status
) ? 0 : 4;
2843 static always_inline
uint32_t efststeq (uint32_t op1
, uint32_t op2
)
2848 return float32_eq(u1
.f
, u2
.f
, &env
->spe_status
) ? 4 : 0;
2851 static always_inline
uint32_t efscmplt (uint32_t op1
, uint32_t op2
)
2853 /* XXX: TODO: test special values (NaN, infinites, ...) */
2854 return efststlt(op1
, op2
);
2857 static always_inline
uint32_t efscmpgt (uint32_t op1
, uint32_t op2
)
2859 /* XXX: TODO: test special values (NaN, infinites, ...) */
2860 return efststgt(op1
, op2
);
2863 static always_inline
uint32_t efscmpeq (uint32_t op1
, uint32_t op2
)
2865 /* XXX: TODO: test special values (NaN, infinites, ...) */
2866 return efststeq(op1
, op2
);
2869 #define HELPER_SINGLE_SPE_CMP(name) \
2870 uint32_t helper_e##name (uint32_t op1, uint32_t op2) \
2872 return e##name(op1, op2) << 2; \
2875 HELPER_SINGLE_SPE_CMP(fststlt
);
2877 HELPER_SINGLE_SPE_CMP(fststgt
);
2879 HELPER_SINGLE_SPE_CMP(fststeq
);
2881 HELPER_SINGLE_SPE_CMP(fscmplt
);
2883 HELPER_SINGLE_SPE_CMP(fscmpgt
);
2885 HELPER_SINGLE_SPE_CMP(fscmpeq
);
2887 static always_inline
uint32_t evcmp_merge (int t0
, int t1
)
2889 return (t0
<< 3) | (t1
<< 2) | ((t0
| t1
) << 1) | (t0
& t1
);
2892 #define HELPER_VECTOR_SPE_CMP(name) \
2893 uint32_t helper_ev##name (uint64_t op1, uint64_t op2) \
2895 return evcmp_merge(e##name(op1 >> 32, op2 >> 32), e##name(op1, op2)); \
2898 HELPER_VECTOR_SPE_CMP(fststlt
);
2900 HELPER_VECTOR_SPE_CMP(fststgt
);
2902 HELPER_VECTOR_SPE_CMP(fststeq
);
2904 HELPER_VECTOR_SPE_CMP(fscmplt
);
2906 HELPER_VECTOR_SPE_CMP(fscmpgt
);
2908 HELPER_VECTOR_SPE_CMP(fscmpeq
);
2910 /* Double-precision floating-point conversion */
2911 uint64_t helper_efdcfsi (uint32_t val
)
2915 u
.d
= int32_to_float64(val
, &env
->spe_status
);
2920 uint64_t helper_efdcfsid (uint64_t val
)
2924 u
.d
= int64_to_float64(val
, &env
->spe_status
);
2929 uint64_t helper_efdcfui (uint32_t val
)
2933 u
.d
= uint32_to_float64(val
, &env
->spe_status
);
2938 uint64_t helper_efdcfuid (uint64_t val
)
2942 u
.d
= uint64_to_float64(val
, &env
->spe_status
);
2947 uint32_t helper_efdctsi (uint64_t val
)
2952 /* NaN are not treated the same way IEEE 754 does */
2953 if (unlikely(float64_is_nan(u
.d
)))
2956 return float64_to_int32(u
.d
, &env
->spe_status
);
2959 uint32_t helper_efdctui (uint64_t val
)
2964 /* NaN are not treated the same way IEEE 754 does */
2965 if (unlikely(float64_is_nan(u
.d
)))
2968 return float64_to_uint32(u
.d
, &env
->spe_status
);
2971 uint32_t helper_efdctsiz (uint64_t val
)
2976 /* NaN are not treated the same way IEEE 754 does */
2977 if (unlikely(float64_is_nan(u
.d
)))
2980 return float64_to_int32_round_to_zero(u
.d
, &env
->spe_status
);
2983 uint64_t helper_efdctsidz (uint64_t val
)
2988 /* NaN are not treated the same way IEEE 754 does */
2989 if (unlikely(float64_is_nan(u
.d
)))
2992 return float64_to_int64_round_to_zero(u
.d
, &env
->spe_status
);
2995 uint32_t helper_efdctuiz (uint64_t val
)
3000 /* NaN are not treated the same way IEEE 754 does */
3001 if (unlikely(float64_is_nan(u
.d
)))
3004 return float64_to_uint32_round_to_zero(u
.d
, &env
->spe_status
);
3007 uint64_t helper_efdctuidz (uint64_t val
)
3012 /* NaN are not treated the same way IEEE 754 does */
3013 if (unlikely(float64_is_nan(u
.d
)))
3016 return float64_to_uint64_round_to_zero(u
.d
, &env
->spe_status
);
3019 uint64_t helper_efdcfsf (uint32_t val
)
3024 u
.d
= int32_to_float64(val
, &env
->spe_status
);
3025 tmp
= int64_to_float64(1ULL << 32, &env
->spe_status
);
3026 u
.d
= float64_div(u
.d
, tmp
, &env
->spe_status
);
3031 uint64_t helper_efdcfuf (uint32_t val
)
3036 u
.d
= uint32_to_float64(val
, &env
->spe_status
);
3037 tmp
= int64_to_float64(1ULL << 32, &env
->spe_status
);
3038 u
.d
= float64_div(u
.d
, tmp
, &env
->spe_status
);
3043 uint32_t helper_efdctsf (uint64_t val
)
3049 /* NaN are not treated the same way IEEE 754 does */
3050 if (unlikely(float64_is_nan(u
.d
)))
3052 tmp
= uint64_to_float64(1ULL << 32, &env
->spe_status
);
3053 u
.d
= float64_mul(u
.d
, tmp
, &env
->spe_status
);
3055 return float64_to_int32(u
.d
, &env
->spe_status
);
3058 uint32_t helper_efdctuf (uint64_t val
)
3064 /* NaN are not treated the same way IEEE 754 does */
3065 if (unlikely(float64_is_nan(u
.d
)))
3067 tmp
= uint64_to_float64(1ULL << 32, &env
->spe_status
);
3068 u
.d
= float64_mul(u
.d
, tmp
, &env
->spe_status
);
3070 return float64_to_uint32(u
.d
, &env
->spe_status
);
3073 uint32_t helper_efscfd (uint64_t val
)
3079 u2
.f
= float64_to_float32(u1
.d
, &env
->spe_status
);
3084 uint64_t helper_efdcfs (uint32_t val
)
3090 u2
.d
= float32_to_float64(u1
.f
, &env
->spe_status
);
3095 /* Double precision fixed-point arithmetic */
3096 uint64_t helper_efdadd (uint64_t op1
, uint64_t op2
)
3101 u1
.d
= float64_add(u1
.d
, u2
.d
, &env
->spe_status
);
3105 uint64_t helper_efdsub (uint64_t op1
, uint64_t op2
)
3110 u1
.d
= float64_sub(u1
.d
, u2
.d
, &env
->spe_status
);
3114 uint64_t helper_efdmul (uint64_t op1
, uint64_t op2
)
3119 u1
.d
= float64_mul(u1
.d
, u2
.d
, &env
->spe_status
);
3123 uint64_t helper_efddiv (uint64_t op1
, uint64_t op2
)
3128 u1
.d
= float64_div(u1
.d
, u2
.d
, &env
->spe_status
);
3132 /* Double precision floating point helpers */
3133 uint32_t helper_efdtstlt (uint64_t op1
, uint64_t op2
)
3138 return float64_lt(u1
.d
, u2
.d
, &env
->spe_status
) ? 4 : 0;
3141 uint32_t helper_efdtstgt (uint64_t op1
, uint64_t op2
)
3146 return float64_le(u1
.d
, u2
.d
, &env
->spe_status
) ? 0 : 4;
3149 uint32_t helper_efdtsteq (uint64_t op1
, uint64_t op2
)
3154 return float64_eq(u1
.d
, u2
.d
, &env
->spe_status
) ? 4 : 0;
3157 uint32_t helper_efdcmplt (uint64_t op1
, uint64_t op2
)
3159 /* XXX: TODO: test special values (NaN, infinites, ...) */
3160 return helper_efdtstlt(op1
, op2
);
3163 uint32_t helper_efdcmpgt (uint64_t op1
, uint64_t op2
)
3165 /* XXX: TODO: test special values (NaN, infinites, ...) */
3166 return helper_efdtstgt(op1
, op2
);
3169 uint32_t helper_efdcmpeq (uint64_t op1
, uint64_t op2
)
3171 /* XXX: TODO: test special values (NaN, infinites, ...) */
3172 return helper_efdtsteq(op1
, op2
);
3175 /*****************************************************************************/
3176 /* Softmmu support */
3177 #if !defined (CONFIG_USER_ONLY)
3179 #define MMUSUFFIX _mmu
3182 #include "softmmu_template.h"
3185 #include "softmmu_template.h"
3188 #include "softmmu_template.h"
3191 #include "softmmu_template.h"
3193 /* try to fill the TLB and return an exception if error. If retaddr is
3194 NULL, it means that the function was called in C code (i.e. not
3195 from generated code or from helper.c) */
3196 /* XXX: fix it to restore all registers */
3197 void tlb_fill (target_ulong addr
, int is_write
, int mmu_idx
, void *retaddr
)
3199 TranslationBlock
*tb
;
3200 CPUState
*saved_env
;
3204 /* XXX: hack to restore env in all cases, even if not called from
3207 env
= cpu_single_env
;
3208 ret
= cpu_ppc_handle_mmu_fault(env
, addr
, is_write
, mmu_idx
, 1);
3209 if (unlikely(ret
!= 0)) {
3210 if (likely(retaddr
)) {
3211 /* now we have a real cpu fault */
3212 pc
= (unsigned long)retaddr
;
3213 tb
= tb_find_pc(pc
);
3215 /* the PC is inside the translated code. It means that we have
3216 a virtual CPU fault */
3217 cpu_restore_state(tb
, env
, pc
, NULL
);
3220 helper_raise_exception_err(env
->exception_index
, env
->error_code
);
3225 /* Segment registers load and store */
3226 target_ulong
helper_load_sr (target_ulong sr_num
)
3228 return env
->sr
[sr_num
];
3231 void helper_store_sr (target_ulong sr_num
, target_ulong val
)
3233 ppc_store_sr(env
, sr_num
, val
);
3236 /* SLB management */
3237 #if defined(TARGET_PPC64)
3238 target_ulong
helper_load_slb (target_ulong slb_nr
)
3240 return ppc_load_slb(env
, slb_nr
);
3243 void helper_store_slb (target_ulong slb_nr
, target_ulong rs
)
3245 ppc_store_slb(env
, slb_nr
, rs
);
3248 void helper_slbia (void)
3250 ppc_slb_invalidate_all(env
);
3253 void helper_slbie (target_ulong addr
)
3255 ppc_slb_invalidate_one(env
, addr
);
3258 #endif /* defined(TARGET_PPC64) */
3260 /* TLB management */
3261 void helper_tlbia (void)
3263 ppc_tlb_invalidate_all(env
);
3266 void helper_tlbie (target_ulong addr
)
3268 ppc_tlb_invalidate_one(env
, addr
);
3271 /* Software driven TLBs management */
3272 /* PowerPC 602/603 software TLB load instructions helpers */
3273 static void do_6xx_tlb (target_ulong new_EPN
, int is_code
)
3275 target_ulong RPN
, CMP
, EPN
;
3278 RPN
= env
->spr
[SPR_RPA
];
3280 CMP
= env
->spr
[SPR_ICMP
];
3281 EPN
= env
->spr
[SPR_IMISS
];
3283 CMP
= env
->spr
[SPR_DCMP
];
3284 EPN
= env
->spr
[SPR_DMISS
];
3286 way
= (env
->spr
[SPR_SRR1
] >> 17) & 1;
3287 #if defined (DEBUG_SOFTWARE_TLB)
3288 if (loglevel
!= 0) {
3289 fprintf(logfile
, "%s: EPN " ADDRX
" " ADDRX
" PTE0 " ADDRX
3290 " PTE1 " ADDRX
" way %d\n",
3291 __func__
, new_EPN
, EPN
, CMP
, RPN
, way
);
3294 /* Store this TLB */
3295 ppc6xx_tlb_store(env
, (uint32_t)(new_EPN
& TARGET_PAGE_MASK
),
3296 way
, is_code
, CMP
, RPN
);
3299 void helper_6xx_tlbd (target_ulong EPN
)
3304 void helper_6xx_tlbi (target_ulong EPN
)
3309 /* PowerPC 74xx software TLB load instructions helpers */
3310 static void do_74xx_tlb (target_ulong new_EPN
, int is_code
)
3312 target_ulong RPN
, CMP
, EPN
;
3315 RPN
= env
->spr
[SPR_PTELO
];
3316 CMP
= env
->spr
[SPR_PTEHI
];
3317 EPN
= env
->spr
[SPR_TLBMISS
] & ~0x3;
3318 way
= env
->spr
[SPR_TLBMISS
] & 0x3;
3319 #if defined (DEBUG_SOFTWARE_TLB)
3320 if (loglevel
!= 0) {
3321 fprintf(logfile
, "%s: EPN " ADDRX
" " ADDRX
" PTE0 " ADDRX
3322 " PTE1 " ADDRX
" way %d\n",
3323 __func__
, new_EPN
, EPN
, CMP
, RPN
, way
);
3326 /* Store this TLB */
3327 ppc6xx_tlb_store(env
, (uint32_t)(new_EPN
& TARGET_PAGE_MASK
),
3328 way
, is_code
, CMP
, RPN
);
3331 void helper_74xx_tlbd (target_ulong EPN
)
3333 do_74xx_tlb(EPN
, 0);
3336 void helper_74xx_tlbi (target_ulong EPN
)
3338 do_74xx_tlb(EPN
, 1);
3341 static always_inline target_ulong
booke_tlb_to_page_size (int size
)
3343 return 1024 << (2 * size
);
3346 static always_inline
int booke_page_size_to_tlb (target_ulong page_size
)
3350 switch (page_size
) {
3384 #if defined (TARGET_PPC64)
3385 case 0x000100000000ULL
:
3388 case 0x000400000000ULL
:
3391 case 0x001000000000ULL
:
3394 case 0x004000000000ULL
:
3397 case 0x010000000000ULL
:
3409 /* Helpers for 4xx TLB management */
3410 target_ulong
helper_4xx_tlbre_lo (target_ulong entry
)
3417 tlb
= &env
->tlb
[entry
].tlbe
;
3419 if (tlb
->prot
& PAGE_VALID
)
3421 size
= booke_page_size_to_tlb(tlb
->size
);
3422 if (size
< 0 || size
> 0x7)
3425 env
->spr
[SPR_40x_PID
] = tlb
->PID
;
3429 target_ulong
helper_4xx_tlbre_hi (target_ulong entry
)
3435 tlb
= &env
->tlb
[entry
].tlbe
;
3437 if (tlb
->prot
& PAGE_EXEC
)
3439 if (tlb
->prot
& PAGE_WRITE
)
3444 void helper_4xx_tlbwe_hi (target_ulong entry
, target_ulong val
)
3447 target_ulong page
, end
;
3449 #if defined (DEBUG_SOFTWARE_TLB)
3450 if (loglevel
!= 0) {
3451 fprintf(logfile
, "%s entry %d val " ADDRX
"\n", __func__
, (int)entry
, val
);
3455 tlb
= &env
->tlb
[entry
].tlbe
;
3456 /* Invalidate previous TLB (if it's valid) */
3457 if (tlb
->prot
& PAGE_VALID
) {
3458 end
= tlb
->EPN
+ tlb
->size
;
3459 #if defined (DEBUG_SOFTWARE_TLB)
3460 if (loglevel
!= 0) {
3461 fprintf(logfile
, "%s: invalidate old TLB %d start " ADDRX
3462 " end " ADDRX
"\n", __func__
, (int)entry
, tlb
->EPN
, end
);
3465 for (page
= tlb
->EPN
; page
< end
; page
+= TARGET_PAGE_SIZE
)
3466 tlb_flush_page(env
, page
);
3468 tlb
->size
= booke_tlb_to_page_size((val
>> 7) & 0x7);
3469 /* We cannot handle TLB size < TARGET_PAGE_SIZE.
3470 * If this ever occurs, one should use the ppcemb target instead
3471 * of the ppc or ppc64 one
3473 if ((val
& 0x40) && tlb
->size
< TARGET_PAGE_SIZE
) {
3474 cpu_abort(env
, "TLB size " TARGET_FMT_lu
" < %u "
3475 "are not supported (%d)\n",
3476 tlb
->size
, TARGET_PAGE_SIZE
, (int)((val
>> 7) & 0x7));
3478 tlb
->EPN
= val
& ~(tlb
->size
- 1);
3480 tlb
->prot
|= PAGE_VALID
;
3482 tlb
->prot
&= ~PAGE_VALID
;
3484 /* XXX: TO BE FIXED */
3485 cpu_abort(env
, "Little-endian TLB entries are not supported by now\n");
3487 tlb
->PID
= env
->spr
[SPR_40x_PID
]; /* PID */
3488 tlb
->attr
= val
& 0xFF;
3489 #if defined (DEBUG_SOFTWARE_TLB)
3490 if (loglevel
!= 0) {
3491 fprintf(logfile
, "%s: set up TLB %d RPN " PADDRX
" EPN " ADDRX
3492 " size " ADDRX
" prot %c%c%c%c PID %d\n", __func__
,
3493 (int)entry
, tlb
->RPN
, tlb
->EPN
, tlb
->size
,
3494 tlb
->prot
& PAGE_READ
? 'r' : '-',
3495 tlb
->prot
& PAGE_WRITE
? 'w' : '-',
3496 tlb
->prot
& PAGE_EXEC
? 'x' : '-',
3497 tlb
->prot
& PAGE_VALID
? 'v' : '-', (int)tlb
->PID
);
3500 /* Invalidate new TLB (if valid) */
3501 if (tlb
->prot
& PAGE_VALID
) {
3502 end
= tlb
->EPN
+ tlb
->size
;
3503 #if defined (DEBUG_SOFTWARE_TLB)
3504 if (loglevel
!= 0) {
3505 fprintf(logfile
, "%s: invalidate TLB %d start " ADDRX
3506 " end " ADDRX
"\n", __func__
, (int)entry
, tlb
->EPN
, end
);
3509 for (page
= tlb
->EPN
; page
< end
; page
+= TARGET_PAGE_SIZE
)
3510 tlb_flush_page(env
, page
);
3514 void helper_4xx_tlbwe_lo (target_ulong entry
, target_ulong val
)
3518 #if defined (DEBUG_SOFTWARE_TLB)
3519 if (loglevel
!= 0) {
3520 fprintf(logfile
, "%s entry %i val " ADDRX
"\n", __func__
, (int)entry
, val
);
3524 tlb
= &env
->tlb
[entry
].tlbe
;
3525 tlb
->RPN
= val
& 0xFFFFFC00;
3526 tlb
->prot
= PAGE_READ
;
3528 tlb
->prot
|= PAGE_EXEC
;
3530 tlb
->prot
|= PAGE_WRITE
;
3531 #if defined (DEBUG_SOFTWARE_TLB)
3532 if (loglevel
!= 0) {
3533 fprintf(logfile
, "%s: set up TLB %d RPN " PADDRX
" EPN " ADDRX
3534 " size " ADDRX
" prot %c%c%c%c PID %d\n", __func__
,
3535 (int)entry
, tlb
->RPN
, tlb
->EPN
, tlb
->size
,
3536 tlb
->prot
& PAGE_READ
? 'r' : '-',
3537 tlb
->prot
& PAGE_WRITE
? 'w' : '-',
3538 tlb
->prot
& PAGE_EXEC
? 'x' : '-',
3539 tlb
->prot
& PAGE_VALID
? 'v' : '-', (int)tlb
->PID
);
3544 target_ulong
helper_4xx_tlbsx (target_ulong address
)
3546 return ppcemb_tlb_search(env
, address
, env
->spr
[SPR_40x_PID
]);
3549 /* PowerPC 440 TLB management */
3550 void helper_440_tlbwe (uint32_t word
, target_ulong entry
, target_ulong value
)
3553 target_ulong EPN
, RPN
, size
;
3556 #if defined (DEBUG_SOFTWARE_TLB)
3557 if (loglevel
!= 0) {
3558 fprintf(logfile
, "%s word %d entry %d value " ADDRX
"\n",
3559 __func__
, word
, (int)entry
, value
);
3564 tlb
= &env
->tlb
[entry
].tlbe
;
3567 /* Just here to please gcc */
3569 EPN
= value
& 0xFFFFFC00;
3570 if ((tlb
->prot
& PAGE_VALID
) && EPN
!= tlb
->EPN
)
3573 size
= booke_tlb_to_page_size((value
>> 4) & 0xF);
3574 if ((tlb
->prot
& PAGE_VALID
) && tlb
->size
< size
)
3578 tlb
->attr
|= (value
>> 8) & 1;
3579 if (value
& 0x200) {
3580 tlb
->prot
|= PAGE_VALID
;
3582 if (tlb
->prot
& PAGE_VALID
) {
3583 tlb
->prot
&= ~PAGE_VALID
;
3587 tlb
->PID
= env
->spr
[SPR_440_MMUCR
] & 0x000000FF;
3592 RPN
= value
& 0xFFFFFC0F;
3593 if ((tlb
->prot
& PAGE_VALID
) && tlb
->RPN
!= RPN
)
3598 tlb
->attr
= (tlb
->attr
& 0x1) | (value
& 0x0000FF00);
3599 tlb
->prot
= tlb
->prot
& PAGE_VALID
;
3601 tlb
->prot
|= PAGE_READ
<< 4;
3603 tlb
->prot
|= PAGE_WRITE
<< 4;
3605 tlb
->prot
|= PAGE_EXEC
<< 4;
3607 tlb
->prot
|= PAGE_READ
;
3609 tlb
->prot
|= PAGE_WRITE
;
3611 tlb
->prot
|= PAGE_EXEC
;
3616 target_ulong
helper_440_tlbre (uint32_t word
, target_ulong entry
)
3623 tlb
= &env
->tlb
[entry
].tlbe
;
3626 /* Just here to please gcc */
3629 size
= booke_page_size_to_tlb(tlb
->size
);
3630 if (size
< 0 || size
> 0xF)
3633 if (tlb
->attr
& 0x1)
3635 if (tlb
->prot
& PAGE_VALID
)
3637 env
->spr
[SPR_440_MMUCR
] &= ~0x000000FF;
3638 env
->spr
[SPR_440_MMUCR
] |= tlb
->PID
;
3644 ret
= tlb
->attr
& ~0x1;
3645 if (tlb
->prot
& (PAGE_READ
<< 4))
3647 if (tlb
->prot
& (PAGE_WRITE
<< 4))
3649 if (tlb
->prot
& (PAGE_EXEC
<< 4))
3651 if (tlb
->prot
& PAGE_READ
)
3653 if (tlb
->prot
& PAGE_WRITE
)
3655 if (tlb
->prot
& PAGE_EXEC
)
3662 target_ulong
helper_440_tlbsx (target_ulong address
)
3664 return ppcemb_tlb_search(env
, address
, env
->spr
[SPR_440_MMUCR
] & 0xFF);
3667 #endif /* !CONFIG_USER_ONLY */