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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 #include "host-utils.h"
24 #include "helper_regs.h"
27 //#define DEBUG_EXCEPTIONS
28 //#define DEBUG_SOFTWARE_TLB
30 /*****************************************************************************/
31 /* Exceptions processing helpers */
33 void helper_raise_exception_err (uint32_t exception, uint32_t error_code)
36 printf("Raise exception %3x code : %d\n", exception, error_code);
38 env->exception_index = exception;
39 env->error_code = error_code;
43 void helper_raise_exception (uint32_t exception)
45 helper_raise_exception_err(exception, 0);
48 /*****************************************************************************/
49 /* Registers load and stores */
50 target_ulong helper_load_cr (void)
52 return (env->crf[0] << 28) |
62 void helper_store_cr (target_ulong val, uint32_t mask)
66 for (i = 0, sh = 7; i < 8; i++, sh--) {
68 env->crf[i] = (val >> (sh * 4)) & 0xFUL;
72 /*****************************************************************************/
74 void helper_load_dump_spr (uint32_t sprn)
77 fprintf(logfile, "Read SPR %d %03x => " ADDRX "\n",
78 sprn, sprn, env->spr[sprn]);
82 void helper_store_dump_spr (uint32_t sprn)
85 fprintf(logfile, "Write SPR %d %03x <= " ADDRX "\n",
86 sprn, sprn, env->spr[sprn]);
90 target_ulong helper_load_tbl (void)
92 return cpu_ppc_load_tbl(env);
95 target_ulong helper_load_tbu (void)
97 return cpu_ppc_load_tbu(env);
100 target_ulong helper_load_atbl (void)
102 return cpu_ppc_load_atbl(env);
105 target_ulong helper_load_atbu (void)
107 return cpu_ppc_load_atbu(env);
110 target_ulong helper_load_601_rtcl (void)
112 return cpu_ppc601_load_rtcl(env);
115 target_ulong helper_load_601_rtcu (void)
117 return cpu_ppc601_load_rtcu(env);
120 #if !defined(CONFIG_USER_ONLY)
121 #if defined (TARGET_PPC64)
122 void helper_store_asr (target_ulong val)
124 ppc_store_asr(env, val);
128 void helper_store_sdr1 (target_ulong val)
130 ppc_store_sdr1(env, val);
133 void helper_store_tbl (target_ulong val)
135 cpu_ppc_store_tbl(env, val);
138 void helper_store_tbu (target_ulong val)
140 cpu_ppc_store_tbu(env, val);
143 void helper_store_atbl (target_ulong val)
145 cpu_ppc_store_atbl(env, val);
148 void helper_store_atbu (target_ulong val)
150 cpu_ppc_store_atbu(env, val);
153 void helper_store_601_rtcl (target_ulong val)
155 cpu_ppc601_store_rtcl(env, val);
158 void helper_store_601_rtcu (target_ulong val)
160 cpu_ppc601_store_rtcu(env, val);
163 target_ulong helper_load_decr (void)
165 return cpu_ppc_load_decr(env);
168 void helper_store_decr (target_ulong val)
170 cpu_ppc_store_decr(env, val);
173 void helper_store_hid0_601 (target_ulong val)
177 hid0 = env->spr[SPR_HID0];
178 if ((val ^ hid0) & 0x00000008) {
179 /* Change current endianness */
180 env->hflags &= ~(1 << MSR_LE);
181 env->hflags_nmsr &= ~(1 << MSR_LE);
182 env->hflags_nmsr |= (1 << MSR_LE) & (((val >> 3) & 1) << MSR_LE);
183 env->hflags |= env->hflags_nmsr;
185 fprintf(logfile, "%s: set endianness to %c => " ADDRX "\n",
186 __func__, val & 0x8 ? 'l' : 'b', env->hflags);
189 env->spr[SPR_HID0] = (uint32_t)val;
192 void helper_store_403_pbr (uint32_t num, target_ulong value)
194 if (likely(env->pb[num] != value)) {
195 env->pb[num] = value;
196 /* Should be optimized */
201 target_ulong helper_load_40x_pit (void)
203 return load_40x_pit(env);
206 void helper_store_40x_pit (target_ulong val)
208 store_40x_pit(env, val);
211 void helper_store_40x_dbcr0 (target_ulong val)
213 store_40x_dbcr0(env, val);
216 void helper_store_40x_sler (target_ulong val)
218 store_40x_sler(env, val);
221 void helper_store_booke_tcr (target_ulong val)
223 store_booke_tcr(env, val);
226 void helper_store_booke_tsr (target_ulong val)
228 store_booke_tsr(env, val);
231 void helper_store_ibatu (uint32_t nr, target_ulong val)
233 ppc_store_ibatu(env, nr, val);
236 void helper_store_ibatl (uint32_t nr, target_ulong val)
238 ppc_store_ibatl(env, nr, val);
241 void helper_store_dbatu (uint32_t nr, target_ulong val)
243 ppc_store_dbatu(env, nr, val);
246 void helper_store_dbatl (uint32_t nr, target_ulong val)
248 ppc_store_dbatl(env, nr, val);
251 void helper_store_601_batl (uint32_t nr, target_ulong val)
253 ppc_store_ibatl_601(env, nr, val);
256 void helper_store_601_batu (uint32_t nr, target_ulong val)
258 ppc_store_ibatu_601(env, nr, val);
262 /*****************************************************************************/
263 /* Memory load and stores */
265 static always_inline target_ulong addr_add(target_ulong addr, target_long arg)
267 #if defined(TARGET_PPC64)
269 return (uint32_t)(addr + arg);
275 void helper_lmw (target_ulong addr, uint32_t reg)
277 for (; reg < 32; reg++) {
279 env->gpr[reg] = bswap32(ldl(addr));
281 env->gpr[reg] = ldl(addr);
282 addr = addr_add(addr, 4);
286 void helper_stmw (target_ulong addr, uint32_t reg)
288 for (; reg < 32; reg++) {
290 stl(addr, bswap32((uint32_t)env->gpr[reg]));
292 stl(addr, (uint32_t)env->gpr[reg]);
293 addr = addr_add(addr, 4);
297 void helper_lsw(target_ulong addr, uint32_t nb, uint32_t reg)
300 for (; nb > 3; nb -= 4) {
301 env->gpr[reg] = ldl(addr);
302 reg = (reg + 1) % 32;
303 addr = addr_add(addr, 4);
305 if (unlikely(nb > 0)) {
307 for (sh = 24; nb > 0; nb--, sh -= 8) {
308 env->gpr[reg] |= ldub(addr) << sh;
309 addr = addr_add(addr, 1);
313 /* PPC32 specification says we must generate an exception if
314 * rA is in the range of registers to be loaded.
315 * In an other hand, IBM says this is valid, but rA won't be loaded.
316 * For now, I'll follow the spec...
318 void helper_lswx(target_ulong addr, uint32_t reg, uint32_t ra, uint32_t rb)
320 if (likely(xer_bc != 0)) {
321 if (unlikely((ra != 0 && reg < ra && (reg + xer_bc) > ra) ||
322 (reg < rb && (reg + xer_bc) > rb))) {
323 helper_raise_exception_err(POWERPC_EXCP_PROGRAM,
325 POWERPC_EXCP_INVAL_LSWX);
327 helper_lsw(addr, xer_bc, reg);
332 void helper_stsw(target_ulong addr, uint32_t nb, uint32_t reg)
335 for (; nb > 3; nb -= 4) {
336 stl(addr, env->gpr[reg]);
337 reg = (reg + 1) % 32;
338 addr = addr_add(addr, 4);
340 if (unlikely(nb > 0)) {
341 for (sh = 24; nb > 0; nb--, sh -= 8)
342 stb(addr, (env->gpr[reg] >> sh) & 0xFF);
343 addr = addr_add(addr, 1);
347 static void do_dcbz(target_ulong addr, int dcache_line_size)
349 addr &= ~(dcache_line_size - 1);
351 for (i = 0 ; i < dcache_line_size ; i += 4) {
354 if (env->reserve == addr)
355 env->reserve = (target_ulong)-1ULL;
358 void helper_dcbz(target_ulong addr)
360 do_dcbz(addr, env->dcache_line_size);
363 void helper_dcbz_970(target_ulong addr)
365 if (((env->spr[SPR_970_HID5] >> 7) & 0x3) == 1)
368 do_dcbz(addr, env->dcache_line_size);
371 void helper_icbi(target_ulong addr)
375 addr &= ~(env->dcache_line_size - 1);
376 /* Invalidate one cache line :
377 * PowerPC specification says this is to be treated like a load
378 * (not a fetch) by the MMU. To be sure it will be so,
379 * do the load "by hand".
382 tb_invalidate_page_range(addr, addr + env->icache_line_size);
386 target_ulong helper_lscbx (target_ulong addr, uint32_t reg, uint32_t ra, uint32_t rb)
390 for (i = 0; i < xer_bc; i++) {
392 addr = addr_add(addr, 1);
393 /* ra (if not 0) and rb are never modified */
394 if (likely(reg != rb && (ra == 0 || reg != ra))) {
395 env->gpr[reg] = (env->gpr[reg] & ~(0xFF << d)) | (c << d);
397 if (unlikely(c == xer_cmp))
399 if (likely(d != 0)) {
410 /*****************************************************************************/
411 /* Fixed point operations helpers */
412 #if defined(TARGET_PPC64)
414 /* multiply high word */
415 uint64_t helper_mulhd (uint64_t arg1, uint64_t arg2)
419 muls64(&tl, &th, arg1, arg2);
423 /* multiply high word unsigned */
424 uint64_t helper_mulhdu (uint64_t arg1, uint64_t arg2)
428 mulu64(&tl, &th, arg1, arg2);
432 uint64_t helper_mulldo (uint64_t arg1, uint64_t arg2)
437 muls64(&tl, (uint64_t *)&th, arg1, arg2);
438 /* If th != 0 && th != -1, then we had an overflow */
439 if (likely((uint64_t)(th + 1) <= 1)) {
440 env->xer &= ~(1 << XER_OV);
442 env->xer |= (1 << XER_OV) | (1 << XER_SO);
448 target_ulong helper_cntlzw (target_ulong t)
453 #if defined(TARGET_PPC64)
454 target_ulong helper_cntlzd (target_ulong t)
460 /* shift right arithmetic helper */
461 target_ulong helper_sraw (target_ulong value, target_ulong shift)
465 if (likely(!(shift & 0x20))) {
466 if (likely((uint32_t)shift != 0)) {
468 ret = (int32_t)value >> shift;
469 if (likely(ret >= 0 || (value & ((1 << shift) - 1)) == 0)) {
470 env->xer &= ~(1 << XER_CA);
472 env->xer |= (1 << XER_CA);
475 ret = (int32_t)value;
476 env->xer &= ~(1 << XER_CA);
479 ret = (int32_t)value >> 31;
481 env->xer |= (1 << XER_CA);
483 env->xer &= ~(1 << XER_CA);
486 return (target_long)ret;
489 #if defined(TARGET_PPC64)
490 target_ulong helper_srad (target_ulong value, target_ulong shift)
494 if (likely(!(shift & 0x40))) {
495 if (likely((uint64_t)shift != 0)) {
497 ret = (int64_t)value >> shift;
498 if (likely(ret >= 0 || (value & ((1 << shift) - 1)) == 0)) {
499 env->xer &= ~(1 << XER_CA);
501 env->xer |= (1 << XER_CA);
504 ret = (int64_t)value;
505 env->xer &= ~(1 << XER_CA);
508 ret = (int64_t)value >> 63;
510 env->xer |= (1 << XER_CA);
512 env->xer &= ~(1 << XER_CA);
519 target_ulong helper_popcntb (target_ulong val)
521 val = (val & 0x55555555) + ((val >> 1) & 0x55555555);
522 val = (val & 0x33333333) + ((val >> 2) & 0x33333333);
523 val = (val & 0x0f0f0f0f) + ((val >> 4) & 0x0f0f0f0f);
527 #if defined(TARGET_PPC64)
528 target_ulong helper_popcntb_64 (target_ulong val)
530 val = (val & 0x5555555555555555ULL) + ((val >> 1) & 0x5555555555555555ULL);
531 val = (val & 0x3333333333333333ULL) + ((val >> 2) & 0x3333333333333333ULL);
532 val = (val & 0x0f0f0f0f0f0f0f0fULL) + ((val >> 4) & 0x0f0f0f0f0f0f0f0fULL);
537 /*****************************************************************************/
538 /* Floating point operations helpers */
539 uint64_t helper_float32_to_float64(uint32_t arg)
544 d.d = float32_to_float64(f.f, &env->fp_status);
548 uint32_t helper_float64_to_float32(uint64_t arg)
553 f.f = float64_to_float32(d.d, &env->fp_status);
557 static always_inline int fpisneg (float64 d)
563 return u.ll >> 63 != 0;
566 static always_inline int isden (float64 d)
572 return ((u.ll >> 52) & 0x7FF) == 0;
575 static always_inline int iszero (float64 d)
581 return (u.ll & ~0x8000000000000000ULL) == 0;
584 static always_inline int isinfinity (float64 d)
590 return ((u.ll >> 52) & 0x7FF) == 0x7FF &&
591 (u.ll & 0x000FFFFFFFFFFFFFULL) == 0;
594 #ifdef CONFIG_SOFTFLOAT
595 static always_inline int isfinite (float64 d)
601 return (((u.ll >> 52) & 0x7FF) != 0x7FF);
604 static always_inline int isnormal (float64 d)
610 uint32_t exp = (u.ll >> 52) & 0x7FF;
611 return ((0 < exp) && (exp < 0x7FF));
615 uint32_t helper_compute_fprf (uint64_t arg, uint32_t set_fprf)
621 isneg = fpisneg(farg.d);
622 if (unlikely(float64_is_nan(farg.d))) {
623 if (float64_is_signaling_nan(farg.d)) {
624 /* Signaling NaN: flags are undefined */
630 } else if (unlikely(isinfinity(farg.d))) {
637 if (iszero(farg.d)) {
645 /* Denormalized numbers */
648 /* Normalized numbers */
659 /* We update FPSCR_FPRF */
660 env->fpscr &= ~(0x1F << FPSCR_FPRF);
661 env->fpscr |= ret << FPSCR_FPRF;
663 /* We just need fpcc to update Rc1 */
667 /* Floating-point invalid operations exception */
668 static always_inline uint64_t fload_invalid_op_excp (int op)
675 case POWERPC_EXCP_FP_VXSNAN:
676 env->fpscr |= 1 << FPSCR_VXSNAN;
678 case POWERPC_EXCP_FP_VXSOFT:
679 env->fpscr |= 1 << FPSCR_VXSOFT;
681 case POWERPC_EXCP_FP_VXISI:
682 /* Magnitude subtraction of infinities */
683 env->fpscr |= 1 << FPSCR_VXISI;
685 case POWERPC_EXCP_FP_VXIDI:
686 /* Division of infinity by infinity */
687 env->fpscr |= 1 << FPSCR_VXIDI;
689 case POWERPC_EXCP_FP_VXZDZ:
690 /* Division of zero by zero */
691 env->fpscr |= 1 << FPSCR_VXZDZ;
693 case POWERPC_EXCP_FP_VXIMZ:
694 /* Multiplication of zero by infinity */
695 env->fpscr |= 1 << FPSCR_VXIMZ;
697 case POWERPC_EXCP_FP_VXVC:
698 /* Ordered comparison of NaN */
699 env->fpscr |= 1 << FPSCR_VXVC;
700 env->fpscr &= ~(0xF << FPSCR_FPCC);
701 env->fpscr |= 0x11 << FPSCR_FPCC;
702 /* We must update the target FPR before raising the exception */
704 env->exception_index = POWERPC_EXCP_PROGRAM;
705 env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_VXVC;
706 /* Update the floating-point enabled exception summary */
707 env->fpscr |= 1 << FPSCR_FEX;
708 /* Exception is differed */
712 case POWERPC_EXCP_FP_VXSQRT:
713 /* Square root of a negative number */
714 env->fpscr |= 1 << FPSCR_VXSQRT;
716 env->fpscr &= ~((1 << FPSCR_FR) | (1 << FPSCR_FI));
718 /* Set the result to quiet NaN */
719 ret = 0xFFF8000000000000ULL;
720 env->fpscr &= ~(0xF << FPSCR_FPCC);
721 env->fpscr |= 0x11 << FPSCR_FPCC;
724 case POWERPC_EXCP_FP_VXCVI:
725 /* Invalid conversion */
726 env->fpscr |= 1 << FPSCR_VXCVI;
727 env->fpscr &= ~((1 << FPSCR_FR) | (1 << FPSCR_FI));
729 /* Set the result to quiet NaN */
730 ret = 0xFFF8000000000000ULL;
731 env->fpscr &= ~(0xF << FPSCR_FPCC);
732 env->fpscr |= 0x11 << FPSCR_FPCC;
736 /* Update the floating-point invalid operation summary */
737 env->fpscr |= 1 << FPSCR_VX;
738 /* Update the floating-point exception summary */
739 env->fpscr |= 1 << FPSCR_FX;
741 /* Update the floating-point enabled exception summary */
742 env->fpscr |= 1 << FPSCR_FEX;
743 if (msr_fe0 != 0 || msr_fe1 != 0)
744 helper_raise_exception_err(POWERPC_EXCP_PROGRAM, POWERPC_EXCP_FP | op);
749 static always_inline uint64_t float_zero_divide_excp (uint64_t arg1, uint64_t arg2)
751 env->fpscr |= 1 << FPSCR_ZX;
752 env->fpscr &= ~((1 << FPSCR_FR) | (1 << FPSCR_FI));
753 /* Update the floating-point exception summary */
754 env->fpscr |= 1 << FPSCR_FX;
756 /* Update the floating-point enabled exception summary */
757 env->fpscr |= 1 << FPSCR_FEX;
758 if (msr_fe0 != 0 || msr_fe1 != 0) {
759 helper_raise_exception_err(POWERPC_EXCP_PROGRAM,
760 POWERPC_EXCP_FP | POWERPC_EXCP_FP_ZX);
763 /* Set the result to infinity */
764 arg1 = ((arg1 ^ arg2) & 0x8000000000000000ULL);
765 arg1 |= 0x7FFULL << 52;
770 static always_inline void float_overflow_excp (void)
772 env->fpscr |= 1 << FPSCR_OX;
773 /* Update the floating-point exception summary */
774 env->fpscr |= 1 << FPSCR_FX;
776 /* XXX: should adjust the result */
777 /* Update the floating-point enabled exception summary */
778 env->fpscr |= 1 << FPSCR_FEX;
779 /* We must update the target FPR before raising the exception */
780 env->exception_index = POWERPC_EXCP_PROGRAM;
781 env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_OX;
783 env->fpscr |= 1 << FPSCR_XX;
784 env->fpscr |= 1 << FPSCR_FI;
788 static always_inline void float_underflow_excp (void)
790 env->fpscr |= 1 << FPSCR_UX;
791 /* Update the floating-point exception summary */
792 env->fpscr |= 1 << FPSCR_FX;
794 /* XXX: should adjust the result */
795 /* Update the floating-point enabled exception summary */
796 env->fpscr |= 1 << FPSCR_FEX;
797 /* We must update the target FPR before raising the exception */
798 env->exception_index = POWERPC_EXCP_PROGRAM;
799 env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_UX;
803 static always_inline void float_inexact_excp (void)
805 env->fpscr |= 1 << FPSCR_XX;
806 /* Update the floating-point exception summary */
807 env->fpscr |= 1 << FPSCR_FX;
809 /* Update the floating-point enabled exception summary */
810 env->fpscr |= 1 << FPSCR_FEX;
811 /* We must update the target FPR before raising the exception */
812 env->exception_index = POWERPC_EXCP_PROGRAM;
813 env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_XX;
817 static always_inline void fpscr_set_rounding_mode (void)
821 /* Set rounding mode */
824 /* Best approximation (round to nearest) */
825 rnd_type = float_round_nearest_even;
828 /* Smaller magnitude (round toward zero) */
829 rnd_type = float_round_to_zero;
832 /* Round toward +infinite */
833 rnd_type = float_round_up;
837 /* Round toward -infinite */
838 rnd_type = float_round_down;
841 set_float_rounding_mode(rnd_type, &env->fp_status);
844 void helper_fpscr_clrbit (uint32_t bit)
848 prev = (env->fpscr >> bit) & 1;
849 env->fpscr &= ~(1 << bit);
854 fpscr_set_rounding_mode();
862 void helper_fpscr_setbit (uint32_t bit)
866 prev = (env->fpscr >> bit) & 1;
867 env->fpscr |= 1 << bit;
871 env->fpscr |= 1 << FPSCR_FX;
875 env->fpscr |= 1 << FPSCR_FX;
880 env->fpscr |= 1 << FPSCR_FX;
885 env->fpscr |= 1 << FPSCR_FX;
890 env->fpscr |= 1 << FPSCR_FX;
903 env->fpscr |= 1 << FPSCR_VX;
904 env->fpscr |= 1 << FPSCR_FX;
911 env->error_code = POWERPC_EXCP_FP;
913 env->error_code |= POWERPC_EXCP_FP_VXSNAN;
915 env->error_code |= POWERPC_EXCP_FP_VXISI;
917 env->error_code |= POWERPC_EXCP_FP_VXIDI;
919 env->error_code |= POWERPC_EXCP_FP_VXZDZ;
921 env->error_code |= POWERPC_EXCP_FP_VXIMZ;
923 env->error_code |= POWERPC_EXCP_FP_VXVC;
925 env->error_code |= POWERPC_EXCP_FP_VXSOFT;
927 env->error_code |= POWERPC_EXCP_FP_VXSQRT;
929 env->error_code |= POWERPC_EXCP_FP_VXCVI;
936 env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_OX;
943 env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_UX;
950 env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_ZX;
957 env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_XX;
963 fpscr_set_rounding_mode();
968 /* Update the floating-point enabled exception summary */
969 env->fpscr |= 1 << FPSCR_FEX;
970 /* We have to update Rc1 before raising the exception */
971 env->exception_index = POWERPC_EXCP_PROGRAM;
977 void helper_store_fpscr (uint64_t arg, uint32_t mask)
980 * We use only the 32 LSB of the incoming fpr
988 new |= prev & 0x60000000;
989 for (i = 0; i < 8; i++) {
990 if (mask & (1 << i)) {
991 env->fpscr &= ~(0xF << (4 * i));
992 env->fpscr |= new & (0xF << (4 * i));
995 /* Update VX and FEX */
997 env->fpscr |= 1 << FPSCR_VX;
999 env->fpscr &= ~(1 << FPSCR_VX);
1000 if ((fpscr_ex & fpscr_eex) != 0) {
1001 env->fpscr |= 1 << FPSCR_FEX;
1002 env->exception_index = POWERPC_EXCP_PROGRAM;
1003 /* XXX: we should compute it properly */
1004 env->error_code = POWERPC_EXCP_FP;
1007 env->fpscr &= ~(1 << FPSCR_FEX);
1008 fpscr_set_rounding_mode();
1011 void helper_float_check_status (void)
1013 #ifdef CONFIG_SOFTFLOAT
1014 if (env->exception_index == POWERPC_EXCP_PROGRAM &&
1015 (env->error_code & POWERPC_EXCP_FP)) {
1016 /* Differred floating-point exception after target FPR update */
1017 if (msr_fe0 != 0 || msr_fe1 != 0)
1018 helper_raise_exception_err(env->exception_index, env->error_code);
1020 int status = get_float_exception_flags(&env->fp_status);
1021 if (status & float_flag_overflow) {
1022 float_overflow_excp();
1023 } else if (status & float_flag_underflow) {
1024 float_underflow_excp();
1025 } else if (status & float_flag_inexact) {
1026 float_inexact_excp();
1030 if (env->exception_index == POWERPC_EXCP_PROGRAM &&
1031 (env->error_code & POWERPC_EXCP_FP)) {
1032 /* Differred floating-point exception after target FPR update */
1033 if (msr_fe0 != 0 || msr_fe1 != 0)
1034 helper_raise_exception_err(env->exception_index, env->error_code);
1039 #ifdef CONFIG_SOFTFLOAT
1040 void helper_reset_fpstatus (void)
1042 set_float_exception_flags(0, &env->fp_status);
1047 uint64_t helper_fadd (uint64_t arg1, uint64_t arg2)
1049 CPU_DoubleU farg1, farg2;
1053 #if USE_PRECISE_EMULATION
1054 if (unlikely(float64_is_signaling_nan(farg1.d) ||
1055 float64_is_signaling_nan(farg2.d))) {
1057 farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN);
1058 } else if (likely(isfinite(farg1.d) || isfinite(farg2.d) ||
1059 fpisneg(farg1.d) == fpisneg(farg2.d))) {
1060 farg1.d = float64_add(farg1.d, farg2.d, &env->fp_status);
1062 /* Magnitude subtraction of infinities */
1063 farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXISI);
1066 farg1.d = float64_add(farg1.d, farg2.d, &env->fp_status);
1072 uint64_t helper_fsub (uint64_t arg1, uint64_t arg2)
1074 CPU_DoubleU farg1, farg2;
1078 #if USE_PRECISE_EMULATION
1080 if (unlikely(float64_is_signaling_nan(farg1.d) ||
1081 float64_is_signaling_nan(farg2.d))) {
1082 /* sNaN subtraction */
1083 farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN);
1084 } else if (likely(isfinite(farg1.d) || isfinite(farg2.d) ||
1085 fpisneg(farg1.d) != fpisneg(farg2.d))) {
1086 farg1.d = float64_sub(farg1.d, farg2.d, &env->fp_status);
1088 /* Magnitude subtraction of infinities */
1089 farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXISI);
1093 farg1.d = float64_sub(farg1.d, farg2.d, &env->fp_status);
1099 uint64_t helper_fmul (uint64_t arg1, uint64_t arg2)
1101 CPU_DoubleU farg1, farg2;
1105 #if USE_PRECISE_EMULATION
1106 if (unlikely(float64_is_signaling_nan(farg1.d) ||
1107 float64_is_signaling_nan(farg2.d))) {
1108 /* sNaN multiplication */
1109 farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN);
1110 } else if (unlikely((isinfinity(farg1.d) && iszero(farg2.d)) ||
1111 (iszero(farg1.d) && isinfinity(farg2.d)))) {
1112 /* Multiplication of zero by infinity */
1113 farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXIMZ);
1115 farg1.d = float64_mul(farg1.d, farg2.d, &env->fp_status);
1118 farg1.d = float64_mul(farg1.d, farg2.d, &env->fp_status);
1124 uint64_t helper_fdiv (uint64_t arg1, uint64_t arg2)
1126 CPU_DoubleU farg1, farg2;
1130 #if USE_PRECISE_EMULATION
1131 if (unlikely(float64_is_signaling_nan(farg1.d) ||
1132 float64_is_signaling_nan(farg2.d))) {
1134 farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN);
1135 } else if (unlikely(isinfinity(farg1.d) && isinfinity(farg2.d))) {
1136 /* Division of infinity by infinity */
1137 farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXIDI);
1138 } else if (unlikely(iszero(farg2.d))) {
1139 if (iszero(farg1.d)) {
1140 /* Division of zero by zero */
1141 farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXZDZ);
1143 /* Division by zero */
1144 farg1.ll = float_zero_divide_excp(farg1.d, farg2.d);
1147 farg1.d = float64_div(farg1.d, farg2.d, &env->fp_status);
1150 farg1.d = float64_div(farg1.d, farg2.d, &env->fp_status);
1156 uint64_t helper_fabs (uint64_t arg)
1161 farg.d = float64_abs(farg.d);
1166 uint64_t helper_fnabs (uint64_t arg)
1171 farg.d = float64_abs(farg.d);
1172 farg.d = float64_chs(farg.d);
1177 uint64_t helper_fneg (uint64_t arg)
1182 farg.d = float64_chs(farg.d);
1186 /* fctiw - fctiw. */
1187 uint64_t helper_fctiw (uint64_t arg)
1192 if (unlikely(float64_is_signaling_nan(farg.d))) {
1193 /* sNaN conversion */
1194 farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | POWERPC_EXCP_FP_VXCVI);
1195 } else if (unlikely(float64_is_nan(farg.d) || isinfinity(farg.d))) {
1196 /* qNan / infinity conversion */
1197 farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI);
1199 farg.ll = float64_to_int32(farg.d, &env->fp_status);
1200 #if USE_PRECISE_EMULATION
1201 /* XXX: higher bits are not supposed to be significant.
1202 * to make tests easier, return the same as a real PowerPC 750
1204 farg.ll |= 0xFFF80000ULL << 32;
1210 /* fctiwz - fctiwz. */
1211 uint64_t helper_fctiwz (uint64_t arg)
1216 if (unlikely(float64_is_signaling_nan(farg.d))) {
1217 /* sNaN conversion */
1218 farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | POWERPC_EXCP_FP_VXCVI);
1219 } else if (unlikely(float64_is_nan(farg.d) || isinfinity(farg.d))) {
1220 /* qNan / infinity conversion */
1221 farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI);
1223 farg.ll = float64_to_int32_round_to_zero(farg.d, &env->fp_status);
1224 #if USE_PRECISE_EMULATION
1225 /* XXX: higher bits are not supposed to be significant.
1226 * to make tests easier, return the same as a real PowerPC 750
1228 farg.ll |= 0xFFF80000ULL << 32;
1234 #if defined(TARGET_PPC64)
1235 /* fcfid - fcfid. */
1236 uint64_t helper_fcfid (uint64_t arg)
1239 farg.d = int64_to_float64(arg, &env->fp_status);
1243 /* fctid - fctid. */
1244 uint64_t helper_fctid (uint64_t arg)
1249 if (unlikely(float64_is_signaling_nan(farg.d))) {
1250 /* sNaN conversion */
1251 farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | POWERPC_EXCP_FP_VXCVI);
1252 } else if (unlikely(float64_is_nan(farg.d) || isinfinity(farg.d))) {
1253 /* qNan / infinity conversion */
1254 farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI);
1256 farg.ll = float64_to_int64(farg.d, &env->fp_status);
1261 /* fctidz - fctidz. */
1262 uint64_t helper_fctidz (uint64_t arg)
1267 if (unlikely(float64_is_signaling_nan(farg.d))) {
1268 /* sNaN conversion */
1269 farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | POWERPC_EXCP_FP_VXCVI);
1270 } else if (unlikely(float64_is_nan(farg.d) || isinfinity(farg.d))) {
1271 /* qNan / infinity conversion */
1272 farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI);
1274 farg.ll = float64_to_int64_round_to_zero(farg.d, &env->fp_status);
1281 static always_inline uint64_t do_fri (uint64_t arg, int rounding_mode)
1286 if (unlikely(float64_is_signaling_nan(farg.d))) {
1288 farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | POWERPC_EXCP_FP_VXCVI);
1289 } else if (unlikely(float64_is_nan(farg.d) || isinfinity(farg.d))) {
1290 /* qNan / infinity round */
1291 farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI);
1293 set_float_rounding_mode(rounding_mode, &env->fp_status);
1294 farg.ll = float64_round_to_int(farg.d, &env->fp_status);
1295 /* Restore rounding mode from FPSCR */
1296 fpscr_set_rounding_mode();
1301 uint64_t helper_frin (uint64_t arg)
1303 return do_fri(arg, float_round_nearest_even);
1306 uint64_t helper_friz (uint64_t arg)
1308 return do_fri(arg, float_round_to_zero);
1311 uint64_t helper_frip (uint64_t arg)
1313 return do_fri(arg, float_round_up);
1316 uint64_t helper_frim (uint64_t arg)
1318 return do_fri(arg, float_round_down);
1321 /* fmadd - fmadd. */
1322 uint64_t helper_fmadd (uint64_t arg1, uint64_t arg2, uint64_t arg3)
1324 CPU_DoubleU farg1, farg2, farg3;
1329 #if USE_PRECISE_EMULATION
1330 if (unlikely(float64_is_signaling_nan(farg1.d) ||
1331 float64_is_signaling_nan(farg2.d) ||
1332 float64_is_signaling_nan(farg3.d))) {
1333 /* sNaN operation */
1334 farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN);
1337 /* This is the way the PowerPC specification defines it */
1338 float128 ft0_128, ft1_128;
1340 ft0_128 = float64_to_float128(farg1.d, &env->fp_status);
1341 ft1_128 = float64_to_float128(farg2.d, &env->fp_status);
1342 ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status);
1343 ft1_128 = float64_to_float128(farg3.d, &env->fp_status);
1344 ft0_128 = float128_add(ft0_128, ft1_128, &env->fp_status);
1345 farg1.d = float128_to_float64(ft0_128, &env->fp_status);
1347 /* This is OK on x86 hosts */
1348 farg1.d = (farg1.d * farg2.d) + farg3.d;
1352 farg1.d = float64_mul(farg1.d, farg2.d, &env->fp_status);
1353 farg1.d = float64_add(farg1.d, farg3.d, &env->fp_status);
1358 /* fmsub - fmsub. */
1359 uint64_t helper_fmsub (uint64_t arg1, uint64_t arg2, uint64_t arg3)
1361 CPU_DoubleU farg1, farg2, farg3;
1366 #if USE_PRECISE_EMULATION
1367 if (unlikely(float64_is_signaling_nan(farg1.d) ||
1368 float64_is_signaling_nan(farg2.d) ||
1369 float64_is_signaling_nan(farg3.d))) {
1370 /* sNaN operation */
1371 farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN);
1374 /* This is the way the PowerPC specification defines it */
1375 float128 ft0_128, ft1_128;
1377 ft0_128 = float64_to_float128(farg1.d, &env->fp_status);
1378 ft1_128 = float64_to_float128(farg2.d, &env->fp_status);
1379 ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status);
1380 ft1_128 = float64_to_float128(farg3.d, &env->fp_status);
1381 ft0_128 = float128_sub(ft0_128, ft1_128, &env->fp_status);
1382 farg1.d = float128_to_float64(ft0_128, &env->fp_status);
1384 /* This is OK on x86 hosts */
1385 farg1.d = (farg1.d * farg2.d) - farg3.d;
1389 farg1.d = float64_mul(farg1.d, farg2.d, &env->fp_status);
1390 farg1.d = float64_sub(farg1.d, farg3.d, &env->fp_status);
1395 /* fnmadd - fnmadd. */
1396 uint64_t helper_fnmadd (uint64_t arg1, uint64_t arg2, uint64_t arg3)
1398 CPU_DoubleU farg1, farg2, farg3;
1404 if (unlikely(float64_is_signaling_nan(farg1.d) ||
1405 float64_is_signaling_nan(farg2.d) ||
1406 float64_is_signaling_nan(farg3.d))) {
1407 /* sNaN operation */
1408 farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN);
1410 #if USE_PRECISE_EMULATION
1412 /* This is the way the PowerPC specification defines it */
1413 float128 ft0_128, ft1_128;
1415 ft0_128 = float64_to_float128(farg1.d, &env->fp_status);
1416 ft1_128 = float64_to_float128(farg2.d, &env->fp_status);
1417 ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status);
1418 ft1_128 = float64_to_float128(farg3.d, &env->fp_status);
1419 ft0_128 = float128_add(ft0_128, ft1_128, &env->fp_status);
1420 farg1.d= float128_to_float64(ft0_128, &env->fp_status);
1422 /* This is OK on x86 hosts */
1423 farg1.d = (farg1.d * farg2.d) + farg3.d;
1426 farg1.d = float64_mul(farg1.d, farg2.d, &env->fp_status);
1427 farg1.d = float64_add(farg1.d, farg3.d, &env->fp_status);
1429 if (likely(!float64_is_nan(farg1.d)))
1430 farg1.d = float64_chs(farg1.d);
1435 /* fnmsub - fnmsub. */
1436 uint64_t helper_fnmsub (uint64_t arg1, uint64_t arg2, uint64_t arg3)
1438 CPU_DoubleU farg1, farg2, farg3;
1444 if (unlikely(float64_is_signaling_nan(farg1.d) ||
1445 float64_is_signaling_nan(farg2.d) ||
1446 float64_is_signaling_nan(farg3.d))) {
1447 /* sNaN operation */
1448 farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN);
1450 #if USE_PRECISE_EMULATION
1452 /* This is the way the PowerPC specification defines it */
1453 float128 ft0_128, ft1_128;
1455 ft0_128 = float64_to_float128(farg1.d, &env->fp_status);
1456 ft1_128 = float64_to_float128(farg2.d, &env->fp_status);
1457 ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status);
1458 ft1_128 = float64_to_float128(farg3.d, &env->fp_status);
1459 ft0_128 = float128_sub(ft0_128, ft1_128, &env->fp_status);
1460 farg1.d = float128_to_float64(ft0_128, &env->fp_status);
1462 /* This is OK on x86 hosts */
1463 farg1.d = (farg1.d * farg2.d) - farg3.d;
1466 farg1.d = float64_mul(farg1.d, farg2.d, &env->fp_status);
1467 farg1.d = float64_sub(farg1.d, farg3.d, &env->fp_status);
1469 if (likely(!float64_is_nan(farg1.d)))
1470 farg1.d = float64_chs(farg1.d);
1476 uint64_t helper_frsp (uint64_t arg)
1482 #if USE_PRECISE_EMULATION
1483 if (unlikely(float64_is_signaling_nan(farg.d))) {
1484 /* sNaN square root */
1485 farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN);
1487 f32 = float64_to_float32(farg.d, &env->fp_status);
1488 farg.d = float32_to_float64(f32, &env->fp_status);
1491 f32 = float64_to_float32(farg.d, &env->fp_status);
1492 farg.d = float32_to_float64(f32, &env->fp_status);
1497 /* fsqrt - fsqrt. */
1498 uint64_t helper_fsqrt (uint64_t arg)
1503 if (unlikely(float64_is_signaling_nan(farg.d))) {
1504 /* sNaN square root */
1505 farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN);
1506 } else if (unlikely(fpisneg(farg.d) && !iszero(farg.d))) {
1507 /* Square root of a negative nonzero number */
1508 farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSQRT);
1510 farg.d = float64_sqrt(farg.d, &env->fp_status);
1516 uint64_t helper_fre (uint64_t arg)
1518 CPU_DoubleU fone, farg;
1519 fone.ll = 0x3FF0000000000000ULL;
1522 if (unlikely(float64_is_signaling_nan(farg.d))) {
1523 /* sNaN reciprocal */
1524 farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN);
1525 } else if (unlikely(iszero(farg.d))) {
1526 /* Zero reciprocal */
1527 farg.ll = float_zero_divide_excp(fone.d, farg.d);
1528 } else if (likely(isnormal(farg.d))) {
1529 farg.d = float64_div(fone.d, farg.d, &env->fp_status);
1531 if (farg.ll == 0x8000000000000000ULL) {
1532 farg.ll = 0xFFF0000000000000ULL;
1533 } else if (farg.ll == 0x0000000000000000ULL) {
1534 farg.ll = 0x7FF0000000000000ULL;
1535 } else if (float64_is_nan(farg.d)) {
1536 farg.ll = 0x7FF8000000000000ULL;
1537 } else if (fpisneg(farg.d)) {
1538 farg.ll = 0x8000000000000000ULL;
1540 farg.ll = 0x0000000000000000ULL;
1547 uint64_t helper_fres (uint64_t arg)
1549 CPU_DoubleU fone, farg;
1550 fone.ll = 0x3FF0000000000000ULL;
1553 if (unlikely(float64_is_signaling_nan(farg.d))) {
1554 /* sNaN reciprocal */
1555 farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN);
1556 } else if (unlikely(iszero(farg.d))) {
1557 /* Zero reciprocal */
1558 farg.ll = float_zero_divide_excp(fone.d, farg.d);
1559 } else if (likely(isnormal(farg.d))) {
1560 #if USE_PRECISE_EMULATION
1561 farg.d = float64_div(fone.d, farg.d, &env->fp_status);
1562 farg.d = float64_to_float32(farg.d, &env->fp_status);
1564 farg.d = float32_div(fone.d, farg.d, &env->fp_status);
1567 if (farg.ll == 0x8000000000000000ULL) {
1568 farg.ll = 0xFFF0000000000000ULL;
1569 } else if (farg.ll == 0x0000000000000000ULL) {
1570 farg.ll = 0x7FF0000000000000ULL;
1571 } else if (float64_is_nan(farg.d)) {
1572 farg.ll = 0x7FF8000000000000ULL;
1573 } else if (fpisneg(farg.d)) {
1574 farg.ll = 0x8000000000000000ULL;
1576 farg.ll = 0x0000000000000000ULL;
1582 /* frsqrte - frsqrte. */
1583 uint64_t helper_frsqrte (uint64_t arg)
1585 CPU_DoubleU fone, farg;
1586 fone.ll = 0x3FF0000000000000ULL;
1589 if (unlikely(float64_is_signaling_nan(farg.d))) {
1590 /* sNaN reciprocal square root */
1591 farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN);
1592 } else if (unlikely(fpisneg(farg.d) && !iszero(farg.d))) {
1593 /* Reciprocal square root of a negative nonzero number */
1594 farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSQRT);
1595 } else if (likely(isnormal(farg.d))) {
1596 farg.d = float64_sqrt(farg.d, &env->fp_status);
1597 farg.d = float32_div(fone.d, farg.d, &env->fp_status);
1599 if (farg.ll == 0x8000000000000000ULL) {
1600 farg.ll = 0xFFF0000000000000ULL;
1601 } else if (farg.ll == 0x0000000000000000ULL) {
1602 farg.ll = 0x7FF0000000000000ULL;
1603 } else if (float64_is_nan(farg.d)) {
1604 farg.ll |= 0x000FFFFFFFFFFFFFULL;
1605 } else if (fpisneg(farg.d)) {
1606 farg.ll = 0x7FF8000000000000ULL;
1608 farg.ll = 0x0000000000000000ULL;
1615 uint64_t helper_fsel (uint64_t arg1, uint64_t arg2, uint64_t arg3)
1621 if (!fpisneg(farg1.d) || iszero(farg1.d))
1627 void helper_fcmpu (uint64_t arg1, uint64_t arg2, uint32_t crfD)
1629 CPU_DoubleU farg1, farg2;
1634 if (unlikely(float64_is_nan(farg1.d) ||
1635 float64_is_nan(farg2.d))) {
1637 } else if (float64_lt(farg1.d, farg2.d, &env->fp_status)) {
1639 } else if (!float64_le(farg1.d, farg2.d, &env->fp_status)) {
1645 env->fpscr &= ~(0x0F << FPSCR_FPRF);
1646 env->fpscr |= ret << FPSCR_FPRF;
1647 env->crf[crfD] = ret;
1648 if (unlikely(ret == 0x01UL
1649 && (float64_is_signaling_nan(farg1.d) ||
1650 float64_is_signaling_nan(farg2.d)))) {
1651 /* sNaN comparison */
1652 fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN);
1656 void helper_fcmpo (uint64_t arg1, uint64_t arg2, uint32_t crfD)
1658 CPU_DoubleU farg1, farg2;
1663 if (unlikely(float64_is_nan(farg1.d) ||
1664 float64_is_nan(farg2.d))) {
1666 } else if (float64_lt(farg1.d, farg2.d, &env->fp_status)) {
1668 } else if (!float64_le(farg1.d, farg2.d, &env->fp_status)) {
1674 env->fpscr &= ~(0x0F << FPSCR_FPRF);
1675 env->fpscr |= ret << FPSCR_FPRF;
1676 env->crf[crfD] = ret;
1677 if (unlikely (ret == 0x01UL)) {
1678 if (float64_is_signaling_nan(farg1.d) ||
1679 float64_is_signaling_nan(farg2.d)) {
1680 /* sNaN comparison */
1681 fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN |
1682 POWERPC_EXCP_FP_VXVC);
1684 /* qNaN comparison */
1685 fload_invalid_op_excp(POWERPC_EXCP_FP_VXVC);
1690 #if !defined (CONFIG_USER_ONLY)
1691 void helper_store_msr (target_ulong val)
1693 val = hreg_store_msr(env, val, 0);
1695 env->interrupt_request |= CPU_INTERRUPT_EXITTB;
1696 helper_raise_exception(val);
1700 static always_inline void do_rfi (target_ulong nip, target_ulong msr,
1701 target_ulong msrm, int keep_msrh)
1703 #if defined(TARGET_PPC64)
1704 if (msr & (1ULL << MSR_SF)) {
1705 nip = (uint64_t)nip;
1706 msr &= (uint64_t)msrm;
1708 nip = (uint32_t)nip;
1709 msr = (uint32_t)(msr & msrm);
1711 msr |= env->msr & ~((uint64_t)0xFFFFFFFF);
1714 nip = (uint32_t)nip;
1715 msr &= (uint32_t)msrm;
1717 /* XXX: beware: this is false if VLE is supported */
1718 env->nip = nip & ~((target_ulong)0x00000003);
1719 hreg_store_msr(env, msr, 1);
1720 #if defined (DEBUG_OP)
1721 cpu_dump_rfi(env->nip, env->msr);
1723 /* No need to raise an exception here,
1724 * as rfi is always the last insn of a TB
1726 env->interrupt_request |= CPU_INTERRUPT_EXITTB;
1729 void helper_rfi (void)
1731 do_rfi(env->spr[SPR_SRR0], env->spr[SPR_SRR1],
1732 ~((target_ulong)0xFFFF0000), 1);
1735 #if defined(TARGET_PPC64)
1736 void helper_rfid (void)
1738 do_rfi(env->spr[SPR_SRR0], env->spr[SPR_SRR1],
1739 ~((target_ulong)0xFFFF0000), 0);
1742 void helper_hrfid (void)
1744 do_rfi(env->spr[SPR_HSRR0], env->spr[SPR_HSRR1],
1745 ~((target_ulong)0xFFFF0000), 0);
1750 void helper_tw (target_ulong arg1, target_ulong arg2, uint32_t flags)
1752 if (!likely(!(((int32_t)arg1 < (int32_t)arg2 && (flags & 0x10)) ||
1753 ((int32_t)arg1 > (int32_t)arg2 && (flags & 0x08)) ||
1754 ((int32_t)arg1 == (int32_t)arg2 && (flags & 0x04)) ||
1755 ((uint32_t)arg1 < (uint32_t)arg2 && (flags & 0x02)) ||
1756 ((uint32_t)arg1 > (uint32_t)arg2 && (flags & 0x01))))) {
1757 helper_raise_exception_err(POWERPC_EXCP_PROGRAM, POWERPC_EXCP_TRAP);
1761 #if defined(TARGET_PPC64)
1762 void helper_td (target_ulong arg1, target_ulong arg2, uint32_t flags)
1764 if (!likely(!(((int64_t)arg1 < (int64_t)arg2 && (flags & 0x10)) ||
1765 ((int64_t)arg1 > (int64_t)arg2 && (flags & 0x08)) ||
1766 ((int64_t)arg1 == (int64_t)arg2 && (flags & 0x04)) ||
1767 ((uint64_t)arg1 < (uint64_t)arg2 && (flags & 0x02)) ||
1768 ((uint64_t)arg1 > (uint64_t)arg2 && (flags & 0x01)))))
1769 helper_raise_exception_err(POWERPC_EXCP_PROGRAM, POWERPC_EXCP_TRAP);
1773 /*****************************************************************************/
1774 /* PowerPC 601 specific instructions (POWER bridge) */
1776 target_ulong helper_clcs (uint32_t arg)
1780 /* Instruction cache line size */
1781 return env->icache_line_size;
1784 /* Data cache line size */
1785 return env->dcache_line_size;
1788 /* Minimum cache line size */
1789 return (env->icache_line_size < env->dcache_line_size) ?
1790 env->icache_line_size : env->dcache_line_size;
1793 /* Maximum cache line size */
1794 return (env->icache_line_size > env->dcache_line_size) ?
1795 env->icache_line_size : env->dcache_line_size;
1804 target_ulong helper_div (target_ulong arg1, target_ulong arg2)
1806 uint64_t tmp = (uint64_t)arg1 << 32 | env->spr[SPR_MQ];
1808 if (((int32_t)tmp == INT32_MIN && (int32_t)arg2 == (int32_t)-1) ||
1809 (int32_t)arg2 == 0) {
1810 env->spr[SPR_MQ] = 0;
1813 env->spr[SPR_MQ] = tmp % arg2;
1814 return tmp / (int32_t)arg2;
1818 target_ulong helper_divo (target_ulong arg1, target_ulong arg2)
1820 uint64_t tmp = (uint64_t)arg1 << 32 | env->spr[SPR_MQ];
1822 if (((int32_t)tmp == INT32_MIN && (int32_t)arg2 == (int32_t)-1) ||
1823 (int32_t)arg2 == 0) {
1824 env->xer |= (1 << XER_OV) | (1 << XER_SO);
1825 env->spr[SPR_MQ] = 0;
1828 env->spr[SPR_MQ] = tmp % arg2;
1829 tmp /= (int32_t)arg2;
1830 if ((int32_t)tmp != tmp) {
1831 env->xer |= (1 << XER_OV) | (1 << XER_SO);
1833 env->xer &= ~(1 << XER_OV);
1839 target_ulong helper_divs (target_ulong arg1, target_ulong arg2)
1841 if (((int32_t)arg1 == INT32_MIN && (int32_t)arg2 == (int32_t)-1) ||
1842 (int32_t)arg2 == 0) {
1843 env->spr[SPR_MQ] = 0;
1846 env->spr[SPR_MQ] = (int32_t)arg1 % (int32_t)arg2;
1847 return (int32_t)arg1 / (int32_t)arg2;
1851 target_ulong helper_divso (target_ulong arg1, target_ulong arg2)
1853 if (((int32_t)arg1 == INT32_MIN && (int32_t)arg2 == (int32_t)-1) ||
1854 (int32_t)arg2 == 0) {
1855 env->xer |= (1 << XER_OV) | (1 << XER_SO);
1856 env->spr[SPR_MQ] = 0;
1859 env->xer &= ~(1 << XER_OV);
1860 env->spr[SPR_MQ] = (int32_t)arg1 % (int32_t)arg2;
1861 return (int32_t)arg1 / (int32_t)arg2;
1865 #if !defined (CONFIG_USER_ONLY)
1866 target_ulong helper_rac (target_ulong addr)
1870 target_ulong ret = 0;
1872 /* We don't have to generate many instances of this instruction,
1873 * as rac is supervisor only.
1875 /* XXX: FIX THIS: Pretend we have no BAT */
1876 nb_BATs = env->nb_BATs;
1878 if (get_physical_address(env, &ctx, addr, 0, ACCESS_INT) == 0)
1880 env->nb_BATs = nb_BATs;
1884 void helper_rfsvc (void)
1886 do_rfi(env->lr, env->ctr, 0x0000FFFF, 0);
1890 /*****************************************************************************/
1891 /* 602 specific instructions */
1892 /* mfrom is the most crazy instruction ever seen, imho ! */
1893 /* Real implementation uses a ROM table. Do the same */
1894 /* Extremly decomposed:
1896 * return 256 * log10(10 + 1.0) + 0.5
1898 #if !defined (CONFIG_USER_ONLY)
1899 target_ulong helper_602_mfrom (target_ulong arg)
1901 if (likely(arg < 602)) {
1902 #include "mfrom_table.c"
1903 return mfrom_ROM_table[arg];
1910 /*****************************************************************************/
1911 /* Embedded PowerPC specific helpers */
1913 /* XXX: to be improved to check access rights when in user-mode */
1914 target_ulong helper_load_dcr (target_ulong dcrn)
1916 target_ulong val = 0;
1918 if (unlikely(env->dcr_env == NULL)) {
1919 if (loglevel != 0) {
1920 fprintf(logfile, "No DCR environment\n");
1922 helper_raise_exception_err(POWERPC_EXCP_PROGRAM,
1923 POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL);
1924 } else if (unlikely(ppc_dcr_read(env->dcr_env, dcrn, &val) != 0)) {
1925 if (loglevel != 0) {
1926 fprintf(logfile, "DCR read error %d %03x\n", (int)dcrn, (int)dcrn);
1928 helper_raise_exception_err(POWERPC_EXCP_PROGRAM,
1929 POWERPC_EXCP_INVAL | POWERPC_EXCP_PRIV_REG);
1934 void helper_store_dcr (target_ulong dcrn, target_ulong val)
1936 if (unlikely(env->dcr_env == NULL)) {
1937 if (loglevel != 0) {
1938 fprintf(logfile, "No DCR environment\n");
1940 helper_raise_exception_err(POWERPC_EXCP_PROGRAM,
1941 POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL);
1942 } else if (unlikely(ppc_dcr_write(env->dcr_env, dcrn, val) != 0)) {
1943 if (loglevel != 0) {
1944 fprintf(logfile, "DCR write error %d %03x\n", (int)dcrn, (int)dcrn);
1946 helper_raise_exception_err(POWERPC_EXCP_PROGRAM,
1947 POWERPC_EXCP_INVAL | POWERPC_EXCP_PRIV_REG);
1951 #if !defined(CONFIG_USER_ONLY)
1952 void helper_40x_rfci (void)
1954 do_rfi(env->spr[SPR_40x_SRR2], env->spr[SPR_40x_SRR3],
1955 ~((target_ulong)0xFFFF0000), 0);
1958 void helper_rfci (void)
1960 do_rfi(env->spr[SPR_BOOKE_CSRR0], SPR_BOOKE_CSRR1,
1961 ~((target_ulong)0x3FFF0000), 0);
1964 void helper_rfdi (void)
1966 do_rfi(env->spr[SPR_BOOKE_DSRR0], SPR_BOOKE_DSRR1,
1967 ~((target_ulong)0x3FFF0000), 0);
1970 void helper_rfmci (void)
1972 do_rfi(env->spr[SPR_BOOKE_MCSRR0], SPR_BOOKE_MCSRR1,
1973 ~((target_ulong)0x3FFF0000), 0);
1978 target_ulong helper_dlmzb (target_ulong high, target_ulong low, uint32_t update_Rc)
1984 for (mask = 0xFF000000; mask != 0; mask = mask >> 8) {
1985 if ((high & mask) == 0) {
1993 for (mask = 0xFF000000; mask != 0; mask = mask >> 8) {
1994 if ((low & mask) == 0) {
2006 env->xer = (env->xer & ~0x7F) | i;
2008 env->crf[0] |= xer_so;
2013 /*****************************************************************************/
2014 /* SPE extension helpers */
2015 /* Use a table to make this quicker */
2016 static uint8_t hbrev[16] = {
2017 0x0, 0x8, 0x4, 0xC, 0x2, 0xA, 0x6, 0xE,
2018 0x1, 0x9, 0x5, 0xD, 0x3, 0xB, 0x7, 0xF,
2021 static always_inline uint8_t byte_reverse (uint8_t val)
2023 return hbrev[val >> 4] | (hbrev[val & 0xF] << 4);
2026 static always_inline uint32_t word_reverse (uint32_t val)
2028 return byte_reverse(val >> 24) | (byte_reverse(val >> 16) << 8) |
2029 (byte_reverse(val >> 8) << 16) | (byte_reverse(val) << 24);
2032 #define MASKBITS 16 // Random value - to be fixed (implementation dependant)
2033 target_ulong helper_brinc (target_ulong arg1, target_ulong arg2)
2035 uint32_t a, b, d, mask;
2037 mask = UINT32_MAX >> (32 - MASKBITS);
2040 d = word_reverse(1 + word_reverse(a | ~b));
2041 return (arg1 & ~mask) | (d & b);
2044 uint32_t helper_cntlsw32 (uint32_t val)
2046 if (val & 0x80000000)
2052 uint32_t helper_cntlzw32 (uint32_t val)
2057 /* Single-precision floating-point conversions */
2058 static always_inline uint32_t efscfsi (uint32_t val)
2062 u.f = int32_to_float32(val, &env->spe_status);
2067 static always_inline uint32_t efscfui (uint32_t val)
2071 u.f = uint32_to_float32(val, &env->spe_status);
2076 static always_inline int32_t efsctsi (uint32_t val)
2081 /* NaN are not treated the same way IEEE 754 does */
2082 if (unlikely(float32_is_nan(u.f)))
2085 return float32_to_int32(u.f, &env->spe_status);
2088 static always_inline uint32_t efsctui (uint32_t val)
2093 /* NaN are not treated the same way IEEE 754 does */
2094 if (unlikely(float32_is_nan(u.f)))
2097 return float32_to_uint32(u.f, &env->spe_status);
2100 static always_inline uint32_t efsctsiz (uint32_t val)
2105 /* NaN are not treated the same way IEEE 754 does */
2106 if (unlikely(float32_is_nan(u.f)))
2109 return float32_to_int32_round_to_zero(u.f, &env->spe_status);
2112 static always_inline uint32_t efsctuiz (uint32_t val)
2117 /* NaN are not treated the same way IEEE 754 does */
2118 if (unlikely(float32_is_nan(u.f)))
2121 return float32_to_uint32_round_to_zero(u.f, &env->spe_status);
2124 static always_inline uint32_t efscfsf (uint32_t val)
2129 u.f = int32_to_float32(val, &env->spe_status);
2130 tmp = int64_to_float32(1ULL << 32, &env->spe_status);
2131 u.f = float32_div(u.f, tmp, &env->spe_status);
2136 static always_inline uint32_t efscfuf (uint32_t val)
2141 u.f = uint32_to_float32(val, &env->spe_status);
2142 tmp = uint64_to_float32(1ULL << 32, &env->spe_status);
2143 u.f = float32_div(u.f, tmp, &env->spe_status);
2148 static always_inline uint32_t efsctsf (uint32_t val)
2154 /* NaN are not treated the same way IEEE 754 does */
2155 if (unlikely(float32_is_nan(u.f)))
2157 tmp = uint64_to_float32(1ULL << 32, &env->spe_status);
2158 u.f = float32_mul(u.f, tmp, &env->spe_status);
2160 return float32_to_int32(u.f, &env->spe_status);
2163 static always_inline uint32_t efsctuf (uint32_t val)
2169 /* NaN are not treated the same way IEEE 754 does */
2170 if (unlikely(float32_is_nan(u.f)))
2172 tmp = uint64_to_float32(1ULL << 32, &env->spe_status);
2173 u.f = float32_mul(u.f, tmp, &env->spe_status);
2175 return float32_to_uint32(u.f, &env->spe_status);
2178 #define HELPER_SPE_SINGLE_CONV(name) \
2179 uint32_t helper_e##name (uint32_t val) \
2181 return e##name(val); \
2184 HELPER_SPE_SINGLE_CONV(fscfsi);
2186 HELPER_SPE_SINGLE_CONV(fscfui);
2188 HELPER_SPE_SINGLE_CONV(fscfuf);
2190 HELPER_SPE_SINGLE_CONV(fscfsf);
2192 HELPER_SPE_SINGLE_CONV(fsctsi);
2194 HELPER_SPE_SINGLE_CONV(fsctui);
2196 HELPER_SPE_SINGLE_CONV(fsctsiz);
2198 HELPER_SPE_SINGLE_CONV(fsctuiz);
2200 HELPER_SPE_SINGLE_CONV(fsctsf);
2202 HELPER_SPE_SINGLE_CONV(fsctuf);
2204 #define HELPER_SPE_VECTOR_CONV(name) \
2205 uint64_t helper_ev##name (uint64_t val) \
2207 return ((uint64_t)e##name(val >> 32) << 32) | \
2208 (uint64_t)e##name(val); \
2211 HELPER_SPE_VECTOR_CONV(fscfsi);
2213 HELPER_SPE_VECTOR_CONV(fscfui);
2215 HELPER_SPE_VECTOR_CONV(fscfuf);
2217 HELPER_SPE_VECTOR_CONV(fscfsf);
2219 HELPER_SPE_VECTOR_CONV(fsctsi);
2221 HELPER_SPE_VECTOR_CONV(fsctui);
2223 HELPER_SPE_VECTOR_CONV(fsctsiz);
2225 HELPER_SPE_VECTOR_CONV(fsctuiz);
2227 HELPER_SPE_VECTOR_CONV(fsctsf);
2229 HELPER_SPE_VECTOR_CONV(fsctuf);
2231 /* Single-precision floating-point arithmetic */
2232 static always_inline uint32_t efsadd (uint32_t op1, uint32_t op2)
2237 u1.f = float32_add(u1.f, u2.f, &env->spe_status);
2241 static always_inline uint32_t efssub (uint32_t op1, uint32_t op2)
2246 u1.f = float32_sub(u1.f, u2.f, &env->spe_status);
2250 static always_inline uint32_t efsmul (uint32_t op1, uint32_t op2)
2255 u1.f = float32_mul(u1.f, u2.f, &env->spe_status);
2259 static always_inline uint32_t efsdiv (uint32_t op1, uint32_t op2)
2264 u1.f = float32_div(u1.f, u2.f, &env->spe_status);
2268 #define HELPER_SPE_SINGLE_ARITH(name) \
2269 uint32_t helper_e##name (uint32_t op1, uint32_t op2) \
2271 return e##name(op1, op2); \
2274 HELPER_SPE_SINGLE_ARITH(fsadd);
2276 HELPER_SPE_SINGLE_ARITH(fssub);
2278 HELPER_SPE_SINGLE_ARITH(fsmul);
2280 HELPER_SPE_SINGLE_ARITH(fsdiv);
2282 #define HELPER_SPE_VECTOR_ARITH(name) \
2283 uint64_t helper_ev##name (uint64_t op1, uint64_t op2) \
2285 return ((uint64_t)e##name(op1 >> 32, op2 >> 32) << 32) | \
2286 (uint64_t)e##name(op1, op2); \
2289 HELPER_SPE_VECTOR_ARITH(fsadd);
2291 HELPER_SPE_VECTOR_ARITH(fssub);
2293 HELPER_SPE_VECTOR_ARITH(fsmul);
2295 HELPER_SPE_VECTOR_ARITH(fsdiv);
2297 /* Single-precision floating-point comparisons */
2298 static always_inline uint32_t efststlt (uint32_t op1, uint32_t op2)
2303 return float32_lt(u1.f, u2.f, &env->spe_status) ? 4 : 0;
2306 static always_inline uint32_t efststgt (uint32_t op1, uint32_t op2)
2311 return float32_le(u1.f, u2.f, &env->spe_status) ? 0 : 4;
2314 static always_inline uint32_t efststeq (uint32_t op1, uint32_t op2)
2319 return float32_eq(u1.f, u2.f, &env->spe_status) ? 4 : 0;
2322 static always_inline uint32_t efscmplt (uint32_t op1, uint32_t op2)
2324 /* XXX: TODO: test special values (NaN, infinites, ...) */
2325 return efststlt(op1, op2);
2328 static always_inline uint32_t efscmpgt (uint32_t op1, uint32_t op2)
2330 /* XXX: TODO: test special values (NaN, infinites, ...) */
2331 return efststgt(op1, op2);
2334 static always_inline uint32_t efscmpeq (uint32_t op1, uint32_t op2)
2336 /* XXX: TODO: test special values (NaN, infinites, ...) */
2337 return efststeq(op1, op2);
2340 #define HELPER_SINGLE_SPE_CMP(name) \
2341 uint32_t helper_e##name (uint32_t op1, uint32_t op2) \
2343 return e##name(op1, op2) << 2; \
2346 HELPER_SINGLE_SPE_CMP(fststlt);
2348 HELPER_SINGLE_SPE_CMP(fststgt);
2350 HELPER_SINGLE_SPE_CMP(fststeq);
2352 HELPER_SINGLE_SPE_CMP(fscmplt);
2354 HELPER_SINGLE_SPE_CMP(fscmpgt);
2356 HELPER_SINGLE_SPE_CMP(fscmpeq);
2358 static always_inline uint32_t evcmp_merge (int t0, int t1)
2360 return (t0 << 3) | (t1 << 2) | ((t0 | t1) << 1) | (t0 & t1);
2363 #define HELPER_VECTOR_SPE_CMP(name) \
2364 uint32_t helper_ev##name (uint64_t op1, uint64_t op2) \
2366 return evcmp_merge(e##name(op1 >> 32, op2 >> 32), e##name(op1, op2)); \
2369 HELPER_VECTOR_SPE_CMP(fststlt);
2371 HELPER_VECTOR_SPE_CMP(fststgt);
2373 HELPER_VECTOR_SPE_CMP(fststeq);
2375 HELPER_VECTOR_SPE_CMP(fscmplt);
2377 HELPER_VECTOR_SPE_CMP(fscmpgt);
2379 HELPER_VECTOR_SPE_CMP(fscmpeq);
2381 /* Double-precision floating-point conversion */
2382 uint64_t helper_efdcfsi (uint32_t val)
2386 u.d = int32_to_float64(val, &env->spe_status);
2391 uint64_t helper_efdcfsid (uint64_t val)
2395 u.d = int64_to_float64(val, &env->spe_status);
2400 uint64_t helper_efdcfui (uint32_t val)
2404 u.d = uint32_to_float64(val, &env->spe_status);
2409 uint64_t helper_efdcfuid (uint64_t val)
2413 u.d = uint64_to_float64(val, &env->spe_status);
2418 uint32_t helper_efdctsi (uint64_t val)
2423 /* NaN are not treated the same way IEEE 754 does */
2424 if (unlikely(float64_is_nan(u.d)))
2427 return float64_to_int32(u.d, &env->spe_status);
2430 uint32_t helper_efdctui (uint64_t val)
2435 /* NaN are not treated the same way IEEE 754 does */
2436 if (unlikely(float64_is_nan(u.d)))
2439 return float64_to_uint32(u.d, &env->spe_status);
2442 uint32_t helper_efdctsiz (uint64_t val)
2447 /* NaN are not treated the same way IEEE 754 does */
2448 if (unlikely(float64_is_nan(u.d)))
2451 return float64_to_int32_round_to_zero(u.d, &env->spe_status);
2454 uint64_t helper_efdctsidz (uint64_t val)
2459 /* NaN are not treated the same way IEEE 754 does */
2460 if (unlikely(float64_is_nan(u.d)))
2463 return float64_to_int64_round_to_zero(u.d, &env->spe_status);
2466 uint32_t helper_efdctuiz (uint64_t val)
2471 /* NaN are not treated the same way IEEE 754 does */
2472 if (unlikely(float64_is_nan(u.d)))
2475 return float64_to_uint32_round_to_zero(u.d, &env->spe_status);
2478 uint64_t helper_efdctuidz (uint64_t val)
2483 /* NaN are not treated the same way IEEE 754 does */
2484 if (unlikely(float64_is_nan(u.d)))
2487 return float64_to_uint64_round_to_zero(u.d, &env->spe_status);
2490 uint64_t helper_efdcfsf (uint32_t val)
2495 u.d = int32_to_float64(val, &env->spe_status);
2496 tmp = int64_to_float64(1ULL << 32, &env->spe_status);
2497 u.d = float64_div(u.d, tmp, &env->spe_status);
2502 uint64_t helper_efdcfuf (uint32_t val)
2507 u.d = uint32_to_float64(val, &env->spe_status);
2508 tmp = int64_to_float64(1ULL << 32, &env->spe_status);
2509 u.d = float64_div(u.d, tmp, &env->spe_status);
2514 uint32_t helper_efdctsf (uint64_t val)
2520 /* NaN are not treated the same way IEEE 754 does */
2521 if (unlikely(float64_is_nan(u.d)))
2523 tmp = uint64_to_float64(1ULL << 32, &env->spe_status);
2524 u.d = float64_mul(u.d, tmp, &env->spe_status);
2526 return float64_to_int32(u.d, &env->spe_status);
2529 uint32_t helper_efdctuf (uint64_t val)
2535 /* NaN are not treated the same way IEEE 754 does */
2536 if (unlikely(float64_is_nan(u.d)))
2538 tmp = uint64_to_float64(1ULL << 32, &env->spe_status);
2539 u.d = float64_mul(u.d, tmp, &env->spe_status);
2541 return float64_to_uint32(u.d, &env->spe_status);
2544 uint32_t helper_efscfd (uint64_t val)
2550 u2.f = float64_to_float32(u1.d, &env->spe_status);
2555 uint64_t helper_efdcfs (uint32_t val)
2561 u2.d = float32_to_float64(u1.f, &env->spe_status);
2566 /* Double precision fixed-point arithmetic */
2567 uint64_t helper_efdadd (uint64_t op1, uint64_t op2)
2572 u1.d = float64_add(u1.d, u2.d, &env->spe_status);
2576 uint64_t helper_efdsub (uint64_t op1, uint64_t op2)
2581 u1.d = float64_sub(u1.d, u2.d, &env->spe_status);
2585 uint64_t helper_efdmul (uint64_t op1, uint64_t op2)
2590 u1.d = float64_mul(u1.d, u2.d, &env->spe_status);
2594 uint64_t helper_efddiv (uint64_t op1, uint64_t op2)
2599 u1.d = float64_div(u1.d, u2.d, &env->spe_status);
2603 /* Double precision floating point helpers */
2604 uint32_t helper_efdtstlt (uint64_t op1, uint64_t op2)
2609 return float64_lt(u1.d, u2.d, &env->spe_status) ? 4 : 0;
2612 uint32_t helper_efdtstgt (uint64_t op1, uint64_t op2)
2617 return float64_le(u1.d, u2.d, &env->spe_status) ? 0 : 4;
2620 uint32_t helper_efdtsteq (uint64_t op1, uint64_t op2)
2625 return float64_eq(u1.d, u2.d, &env->spe_status) ? 4 : 0;
2628 uint32_t helper_efdcmplt (uint64_t op1, uint64_t op2)
2630 /* XXX: TODO: test special values (NaN, infinites, ...) */
2631 return helper_efdtstlt(op1, op2);
2634 uint32_t helper_efdcmpgt (uint64_t op1, uint64_t op2)
2636 /* XXX: TODO: test special values (NaN, infinites, ...) */
2637 return helper_efdtstgt(op1, op2);
2640 uint32_t helper_efdcmpeq (uint64_t op1, uint64_t op2)
2642 /* XXX: TODO: test special values (NaN, infinites, ...) */
2643 return helper_efdtsteq(op1, op2);
2646 /*****************************************************************************/
2647 /* Softmmu support */
2648 #if !defined (CONFIG_USER_ONLY)
2650 #define MMUSUFFIX _mmu
2653 #include "softmmu_template.h"
2656 #include "softmmu_template.h"
2659 #include "softmmu_template.h"
2662 #include "softmmu_template.h"
2664 /* try to fill the TLB and return an exception if error. If retaddr is
2665 NULL, it means that the function was called in C code (i.e. not
2666 from generated code or from helper.c) */
2667 /* XXX: fix it to restore all registers */
2668 void tlb_fill (target_ulong addr, int is_write, int mmu_idx, void *retaddr)
2670 TranslationBlock *tb;
2671 CPUState *saved_env;
2675 /* XXX: hack to restore env in all cases, even if not called from
2678 env = cpu_single_env;
2679 ret = cpu_ppc_handle_mmu_fault(env, addr, is_write, mmu_idx, 1);
2680 if (unlikely(ret != 0)) {
2681 if (likely(retaddr)) {
2682 /* now we have a real cpu fault */
2683 pc = (unsigned long)retaddr;
2684 tb = tb_find_pc(pc);
2686 /* the PC is inside the translated code. It means that we have
2687 a virtual CPU fault */
2688 cpu_restore_state(tb, env, pc, NULL);
2691 helper_raise_exception_err(env->exception_index, env->error_code);
2696 /* Segment registers load and store */
2697 target_ulong helper_load_sr (target_ulong sr_num)
2699 return env->sr[sr_num];
2702 void helper_store_sr (target_ulong sr_num, target_ulong val)
2704 ppc_store_sr(env, sr_num, val);
2707 /* SLB management */
2708 #if defined(TARGET_PPC64)
2709 target_ulong helper_load_slb (target_ulong slb_nr)
2711 return ppc_load_slb(env, slb_nr);
2714 void helper_store_slb (target_ulong slb_nr, target_ulong rs)
2716 ppc_store_slb(env, slb_nr, rs);
2719 void helper_slbia (void)
2721 ppc_slb_invalidate_all(env);
2724 void helper_slbie (target_ulong addr)
2726 ppc_slb_invalidate_one(env, addr);
2729 #endif /* defined(TARGET_PPC64) */
2731 /* TLB management */
2732 void helper_tlbia (void)
2734 ppc_tlb_invalidate_all(env);
2737 void helper_tlbie (target_ulong addr)
2739 ppc_tlb_invalidate_one(env, addr);
2742 /* Software driven TLBs management */
2743 /* PowerPC 602/603 software TLB load instructions helpers */
2744 static void do_6xx_tlb (target_ulong new_EPN, int is_code)
2746 target_ulong RPN, CMP, EPN;
2749 RPN = env->spr[SPR_RPA];
2751 CMP = env->spr[SPR_ICMP];
2752 EPN = env->spr[SPR_IMISS];
2754 CMP = env->spr[SPR_DCMP];
2755 EPN = env->spr[SPR_DMISS];
2757 way = (env->spr[SPR_SRR1] >> 17) & 1;
2758 #if defined (DEBUG_SOFTWARE_TLB)
2759 if (loglevel != 0) {
2760 fprintf(logfile, "%s: EPN " ADDRX " " ADDRX " PTE0 " ADDRX
2761 " PTE1 " ADDRX " way %d\n",
2762 __func__, new_EPN, EPN, CMP, RPN, way);
2765 /* Store this TLB */
2766 ppc6xx_tlb_store(env, (uint32_t)(new_EPN & TARGET_PAGE_MASK),
2767 way, is_code, CMP, RPN);
2770 void helper_6xx_tlbd (target_ulong EPN)
2775 void helper_6xx_tlbi (target_ulong EPN)
2780 /* PowerPC 74xx software TLB load instructions helpers */
2781 static void do_74xx_tlb (target_ulong new_EPN, int is_code)
2783 target_ulong RPN, CMP, EPN;
2786 RPN = env->spr[SPR_PTELO];
2787 CMP = env->spr[SPR_PTEHI];
2788 EPN = env->spr[SPR_TLBMISS] & ~0x3;
2789 way = env->spr[SPR_TLBMISS] & 0x3;
2790 #if defined (DEBUG_SOFTWARE_TLB)
2791 if (loglevel != 0) {
2792 fprintf(logfile, "%s: EPN " ADDRX " " ADDRX " PTE0 " ADDRX
2793 " PTE1 " ADDRX " way %d\n",
2794 __func__, new_EPN, EPN, CMP, RPN, way);
2797 /* Store this TLB */
2798 ppc6xx_tlb_store(env, (uint32_t)(new_EPN & TARGET_PAGE_MASK),
2799 way, is_code, CMP, RPN);
2802 void helper_74xx_tlbd (target_ulong EPN)
2804 do_74xx_tlb(EPN, 0);
2807 void helper_74xx_tlbi (target_ulong EPN)
2809 do_74xx_tlb(EPN, 1);
2812 static always_inline target_ulong booke_tlb_to_page_size (int size)
2814 return 1024 << (2 * size);
2817 static always_inline int booke_page_size_to_tlb (target_ulong page_size)
2821 switch (page_size) {
2855 #if defined (TARGET_PPC64)
2856 case 0x000100000000ULL:
2859 case 0x000400000000ULL:
2862 case 0x001000000000ULL:
2865 case 0x004000000000ULL:
2868 case 0x010000000000ULL:
2880 /* Helpers for 4xx TLB management */
2881 target_ulong helper_4xx_tlbre_lo (target_ulong entry)
2888 tlb = &env->tlb[entry].tlbe;
2890 if (tlb->prot & PAGE_VALID)
2892 size = booke_page_size_to_tlb(tlb->size);
2893 if (size < 0 || size > 0x7)
2896 env->spr[SPR_40x_PID] = tlb->PID;
2900 target_ulong helper_4xx_tlbre_hi (target_ulong entry)
2906 tlb = &env->tlb[entry].tlbe;
2908 if (tlb->prot & PAGE_EXEC)
2910 if (tlb->prot & PAGE_WRITE)
2915 void helper_4xx_tlbwe_hi (target_ulong entry, target_ulong val)
2918 target_ulong page, end;
2920 #if defined (DEBUG_SOFTWARE_TLB)
2921 if (loglevel != 0) {
2922 fprintf(logfile, "%s entry %d val " ADDRX "\n", __func__, (int)entry, val);
2926 tlb = &env->tlb[entry].tlbe;
2927 /* Invalidate previous TLB (if it's valid) */
2928 if (tlb->prot & PAGE_VALID) {
2929 end = tlb->EPN + tlb->size;
2930 #if defined (DEBUG_SOFTWARE_TLB)
2931 if (loglevel != 0) {
2932 fprintf(logfile, "%s: invalidate old TLB %d start " ADDRX
2933 " end " ADDRX "\n", __func__, (int)entry, tlb->EPN, end);
2936 for (page = tlb->EPN; page < end; page += TARGET_PAGE_SIZE)
2937 tlb_flush_page(env, page);
2939 tlb->size = booke_tlb_to_page_size((val >> 7) & 0x7);
2940 /* We cannot handle TLB size < TARGET_PAGE_SIZE.
2941 * If this ever occurs, one should use the ppcemb target instead
2942 * of the ppc or ppc64 one
2944 if ((val & 0x40) && tlb->size < TARGET_PAGE_SIZE) {
2945 cpu_abort(env, "TLB size " TARGET_FMT_lu " < %u "
2946 "are not supported (%d)\n",
2947 tlb->size, TARGET_PAGE_SIZE, (int)((val >> 7) & 0x7));
2949 tlb->EPN = val & ~(tlb->size - 1);
2951 tlb->prot |= PAGE_VALID;
2953 tlb->prot &= ~PAGE_VALID;
2955 /* XXX: TO BE FIXED */
2956 cpu_abort(env, "Little-endian TLB entries are not supported by now\n");
2958 tlb->PID = env->spr[SPR_40x_PID]; /* PID */
2959 tlb->attr = val & 0xFF;
2960 #if defined (DEBUG_SOFTWARE_TLB)
2961 if (loglevel != 0) {
2962 fprintf(logfile, "%s: set up TLB %d RPN " PADDRX " EPN " ADDRX
2963 " size " ADDRX " prot %c%c%c%c PID %d\n", __func__,
2964 (int)entry, tlb->RPN, tlb->EPN, tlb->size,
2965 tlb->prot & PAGE_READ ? 'r' : '-',
2966 tlb->prot & PAGE_WRITE ? 'w' : '-',
2967 tlb->prot & PAGE_EXEC ? 'x' : '-',
2968 tlb->prot & PAGE_VALID ? 'v' : '-', (int)tlb->PID);
2971 /* Invalidate new TLB (if valid) */
2972 if (tlb->prot & PAGE_VALID) {
2973 end = tlb->EPN + tlb->size;
2974 #if defined (DEBUG_SOFTWARE_TLB)
2975 if (loglevel != 0) {
2976 fprintf(logfile, "%s: invalidate TLB %d start " ADDRX
2977 " end " ADDRX "\n", __func__, (int)entry, tlb->EPN, end);
2980 for (page = tlb->EPN; page < end; page += TARGET_PAGE_SIZE)
2981 tlb_flush_page(env, page);
2985 void helper_4xx_tlbwe_lo (target_ulong entry, target_ulong val)
2989 #if defined (DEBUG_SOFTWARE_TLB)
2990 if (loglevel != 0) {
2991 fprintf(logfile, "%s entry %i val " ADDRX "\n", __func__, (int)entry, val);
2995 tlb = &env->tlb[entry].tlbe;
2996 tlb->RPN = val & 0xFFFFFC00;
2997 tlb->prot = PAGE_READ;
2999 tlb->prot |= PAGE_EXEC;
3001 tlb->prot |= PAGE_WRITE;
3002 #if defined (DEBUG_SOFTWARE_TLB)
3003 if (loglevel != 0) {
3004 fprintf(logfile, "%s: set up TLB %d RPN " PADDRX " EPN " ADDRX
3005 " size " ADDRX " prot %c%c%c%c PID %d\n", __func__,
3006 (int)entry, tlb->RPN, tlb->EPN, tlb->size,
3007 tlb->prot & PAGE_READ ? 'r' : '-',
3008 tlb->prot & PAGE_WRITE ? 'w' : '-',
3009 tlb->prot & PAGE_EXEC ? 'x' : '-',
3010 tlb->prot & PAGE_VALID ? 'v' : '-', (int)tlb->PID);
3015 target_ulong helper_4xx_tlbsx (target_ulong address)
3017 return ppcemb_tlb_search(env, address, env->spr[SPR_40x_PID]);
3020 /* PowerPC 440 TLB management */
3021 void helper_440_tlbwe (uint32_t word, target_ulong entry, target_ulong value)
3024 target_ulong EPN, RPN, size;
3027 #if defined (DEBUG_SOFTWARE_TLB)
3028 if (loglevel != 0) {
3029 fprintf(logfile, "%s word %d entry %d value " ADDRX "\n",
3030 __func__, word, (int)entry, value);
3035 tlb = &env->tlb[entry].tlbe;
3038 /* Just here to please gcc */
3040 EPN = value & 0xFFFFFC00;
3041 if ((tlb->prot & PAGE_VALID) && EPN != tlb->EPN)
3044 size = booke_tlb_to_page_size((value >> 4) & 0xF);
3045 if ((tlb->prot & PAGE_VALID) && tlb->size < size)
3049 tlb->attr |= (value >> 8) & 1;
3050 if (value & 0x200) {
3051 tlb->prot |= PAGE_VALID;
3053 if (tlb->prot & PAGE_VALID) {
3054 tlb->prot &= ~PAGE_VALID;
3058 tlb->PID = env->spr[SPR_440_MMUCR] & 0x000000FF;
3063 RPN = value & 0xFFFFFC0F;
3064 if ((tlb->prot & PAGE_VALID) && tlb->RPN != RPN)
3069 tlb->attr = (tlb->attr & 0x1) | (value & 0x0000FF00);
3070 tlb->prot = tlb->prot & PAGE_VALID;
3072 tlb->prot |= PAGE_READ << 4;
3074 tlb->prot |= PAGE_WRITE << 4;
3076 tlb->prot |= PAGE_EXEC << 4;
3078 tlb->prot |= PAGE_READ;
3080 tlb->prot |= PAGE_WRITE;
3082 tlb->prot |= PAGE_EXEC;
3087 target_ulong helper_440_tlbre (uint32_t word, target_ulong entry)
3094 tlb = &env->tlb[entry].tlbe;
3097 /* Just here to please gcc */
3100 size = booke_page_size_to_tlb(tlb->size);
3101 if (size < 0 || size > 0xF)
3104 if (tlb->attr & 0x1)
3106 if (tlb->prot & PAGE_VALID)
3108 env->spr[SPR_440_MMUCR] &= ~0x000000FF;
3109 env->spr[SPR_440_MMUCR] |= tlb->PID;
3115 ret = tlb->attr & ~0x1;
3116 if (tlb->prot & (PAGE_READ << 4))
3118 if (tlb->prot & (PAGE_WRITE << 4))
3120 if (tlb->prot & (PAGE_EXEC << 4))
3122 if (tlb->prot & PAGE_READ)
3124 if (tlb->prot & PAGE_WRITE)
3126 if (tlb->prot & PAGE_EXEC)
3133 target_ulong helper_440_tlbsx (target_ulong address)
3135 return ppcemb_tlb_search(env, address, env->spr[SPR_440_MMUCR] & 0xFF);
3138 #endif /* !CONFIG_USER_ONLY */