5 //#define DEBUG_UNALIGNED
6 //#define DEBUG_UNASSIGNED
8 void raise_exception(int tt)
10 env->exception_index = tt;
14 void check_ieee_exceptions()
16 T0 = get_float_exception_flags(&env->fp_status);
19 /* Copy IEEE 754 flags into FSR */
20 if (T0 & float_flag_invalid)
22 if (T0 & float_flag_overflow)
24 if (T0 & float_flag_underflow)
26 if (T0 & float_flag_divbyzero)
28 if (T0 & float_flag_inexact)
31 if ((env->fsr & FSR_CEXC_MASK) & ((env->fsr & FSR_TEM_MASK) >> 23))
33 /* Unmasked exception, generate a trap */
34 env->fsr |= FSR_FTT_IEEE_EXCP;
35 raise_exception(TT_FP_EXCP);
39 /* Accumulate exceptions */
40 env->fsr |= (env->fsr & FSR_CEXC_MASK) << 5;
45 #ifdef USE_INT_TO_FLOAT_HELPERS
48 set_float_exception_flags(0, &env->fp_status);
49 FT0 = int32_to_float32(*((int32_t *)&FT1), &env->fp_status);
50 check_ieee_exceptions();
55 DT0 = int32_to_float64(*((int32_t *)&FT1), &env->fp_status);
61 FT0 = float32_abs(FT1);
67 DT0 = float64_abs(DT1);
73 set_float_exception_flags(0, &env->fp_status);
74 FT0 = float32_sqrt(FT1, &env->fp_status);
75 check_ieee_exceptions();
80 set_float_exception_flags(0, &env->fp_status);
81 DT0 = float64_sqrt(DT1, &env->fp_status);
82 check_ieee_exceptions();
85 #define GEN_FCMP(name, size, reg1, reg2, FS, TRAP) \
86 void glue(do_, name) (void) \
88 env->fsr &= ~((FSR_FCC1 | FSR_FCC0) << FS); \
89 switch (glue(size, _compare) (reg1, reg2, &env->fp_status)) { \
90 case float_relation_unordered: \
91 T0 = (FSR_FCC1 | FSR_FCC0) << FS; \
92 if ((env->fsr & FSR_NVM) || TRAP) { \
94 env->fsr |= FSR_NVC; \
95 env->fsr |= FSR_FTT_IEEE_EXCP; \
96 raise_exception(TT_FP_EXCP); \
98 env->fsr |= FSR_NVA; \
101 case float_relation_less: \
102 T0 = FSR_FCC0 << FS; \
104 case float_relation_greater: \
105 T0 = FSR_FCC1 << FS; \
114 GEN_FCMP(fcmps, float32, FT0, FT1, 0, 0);
115 GEN_FCMP(fcmpd, float64, DT0, DT1, 0, 0);
117 GEN_FCMP(fcmpes, float32, FT0, FT1, 0, 1);
118 GEN_FCMP(fcmped, float64, DT0, DT1, 0, 1);
120 #ifdef TARGET_SPARC64
121 GEN_FCMP(fcmps_fcc1, float32, FT0, FT1, 22, 0);
122 GEN_FCMP(fcmpd_fcc1, float64, DT0, DT1, 22, 0);
124 GEN_FCMP(fcmps_fcc2, float32, FT0, FT1, 24, 0);
125 GEN_FCMP(fcmpd_fcc2, float64, DT0, DT1, 24, 0);
127 GEN_FCMP(fcmps_fcc3, float32, FT0, FT1, 26, 0);
128 GEN_FCMP(fcmpd_fcc3, float64, DT0, DT1, 26, 0);
130 GEN_FCMP(fcmpes_fcc1, float32, FT0, FT1, 22, 1);
131 GEN_FCMP(fcmped_fcc1, float64, DT0, DT1, 22, 1);
133 GEN_FCMP(fcmpes_fcc2, float32, FT0, FT1, 24, 1);
134 GEN_FCMP(fcmped_fcc2, float64, DT0, DT1, 24, 1);
136 GEN_FCMP(fcmpes_fcc3, float32, FT0, FT1, 26, 1);
137 GEN_FCMP(fcmped_fcc3, float64, DT0, DT1, 26, 1);
140 #ifndef TARGET_SPARC64
141 #ifndef CONFIG_USER_ONLY
142 void helper_ld_asi(int asi, int size, int sign)
147 case 2: /* SuperSparc MXCC registers */
149 case 3: /* MMU probe */
153 mmulev = (T0 >> 8) & 15;
157 ret = mmu_probe(env, T0, mmulev);
161 printf("mmu_probe: 0x%08x (lev %d) -> 0x%08x\n", T0, mmulev, ret);
165 case 4: /* read MMU regs */
167 int reg = (T0 >> 8) & 0xf;
169 ret = env->mmuregs[reg];
170 if (reg == 3) /* Fault status cleared on read */
171 env->mmuregs[reg] = 0;
173 printf("mmu_read: reg[%d] = 0x%08x\n", reg, ret);
177 case 9: /* Supervisor code access */
183 ret = lduw_code(T0 & ~1);
187 ret = ldl_code(T0 & ~3);
190 ret = ldl_code(T0 & ~3);
191 T0 = ldl_code((T0 + 4) & ~3);
195 case 0xa: /* User data access */
201 ret = lduw_user(T0 & ~1);
205 ret = ldl_user(T0 & ~3);
208 ret = ldl_user(T0 & ~3);
209 T0 = ldl_user((T0 + 4) & ~3);
213 case 0xb: /* Supervisor data access */
216 ret = ldub_kernel(T0);
219 ret = lduw_kernel(T0 & ~1);
223 ret = ldl_kernel(T0 & ~3);
226 ret = ldl_kernel(T0 & ~3);
227 T0 = ldl_kernel((T0 + 4) & ~3);
231 case 0xc: /* I-cache tag */
232 case 0xd: /* I-cache data */
233 case 0xe: /* D-cache tag */
234 case 0xf: /* D-cache data */
236 case 0x20: /* MMU passthrough */
242 ret = lduw_phys(T0 & ~1);
246 ret = ldl_phys(T0 & ~3);
249 ret = ldl_phys(T0 & ~3);
250 T0 = ldl_phys((T0 + 4) & ~3);
254 case 0x2e: /* MMU passthrough, 0xexxxxxxxx */
255 case 0x2f: /* MMU passthrough, 0xfxxxxxxxx */
258 ret = ldub_phys((target_phys_addr_t)T0
259 | ((target_phys_addr_t)(asi & 0xf) << 32));
262 ret = lduw_phys((target_phys_addr_t)(T0 & ~1)
263 | ((target_phys_addr_t)(asi & 0xf) << 32));
267 ret = ldl_phys((target_phys_addr_t)(T0 & ~3)
268 | ((target_phys_addr_t)(asi & 0xf) << 32));
271 ret = ldl_phys((target_phys_addr_t)(T0 & ~3)
272 | ((target_phys_addr_t)(asi & 0xf) << 32));
273 T0 = ldl_phys((target_phys_addr_t)((T0 + 4) & ~3)
274 | ((target_phys_addr_t)(asi & 0xf) << 32));
278 case 0x21 ... 0x2d: /* MMU passthrough, unassigned */
280 do_unassigned_access(T0, 0, 0, 1);
301 void helper_st_asi(int asi, int size)
304 case 2: /* SuperSparc MXCC registers */
306 case 3: /* MMU flush */
310 mmulev = (T0 >> 8) & 15;
312 printf("mmu flush level %d\n", mmulev);
315 case 0: // flush page
316 tlb_flush_page(env, T0 & 0xfffff000);
318 case 1: // flush segment (256k)
319 case 2: // flush region (16M)
320 case 3: // flush context (4G)
321 case 4: // flush entire
332 case 4: /* write MMU regs */
334 int reg = (T0 >> 8) & 0xf;
337 oldreg = env->mmuregs[reg];
340 env->mmuregs[reg] &= ~(MMU_E | MMU_NF | MMU_BM);
341 env->mmuregs[reg] |= T1 & (MMU_E | MMU_NF | MMU_BM);
342 // Mappings generated during no-fault mode or MMU
343 // disabled mode are invalid in normal mode
344 if (oldreg != env->mmuregs[reg])
348 env->mmuregs[reg] = T1;
349 if (oldreg != env->mmuregs[reg]) {
350 /* we flush when the MMU context changes because
351 QEMU has no MMU context support */
359 env->mmuregs[reg] = T1;
363 if (oldreg != env->mmuregs[reg]) {
364 printf("mmu change reg[%d]: 0x%08x -> 0x%08x\n", reg, oldreg, env->mmuregs[reg]);
370 case 0xa: /* User data access */
376 stw_user(T0 & ~1, T1);
380 stl_user(T0 & ~3, T1);
383 stl_user(T0 & ~3, T1);
384 stl_user((T0 + 4) & ~3, T2);
388 case 0xb: /* Supervisor data access */
394 stw_kernel(T0 & ~1, T1);
398 stl_kernel(T0 & ~3, T1);
401 stl_kernel(T0 & ~3, T1);
402 stl_kernel((T0 + 4) & ~3, T2);
406 case 0xc: /* I-cache tag */
407 case 0xd: /* I-cache data */
408 case 0xe: /* D-cache tag */
409 case 0xf: /* D-cache data */
410 case 0x10: /* I/D-cache flush page */
411 case 0x11: /* I/D-cache flush segment */
412 case 0x12: /* I/D-cache flush region */
413 case 0x13: /* I/D-cache flush context */
414 case 0x14: /* I/D-cache flush user */
416 case 0x17: /* Block copy, sta access */
419 // address (T0) = dst
422 uint32_t src = T1 & ~3, dst = T0 & ~3, temp;
424 for (i = 0; i < 32; i += 4, src += 4, dst += 4) {
425 temp = ldl_kernel(src);
426 stl_kernel(dst, temp);
430 case 0x1f: /* Block fill, stda access */
433 // address (T0) = dst
436 uint32_t dst = T0 & 7;
439 val = (((uint64_t)T1) << 32) | T2;
441 for (i = 0; i < 32; i += 8, dst += 8)
442 stq_kernel(dst, val);
445 case 0x20: /* MMU passthrough */
452 stw_phys(T0 & ~1, T1);
456 stl_phys(T0 & ~3, T1);
459 stl_phys(T0 & ~3, T1);
460 stl_phys((T0 + 4) & ~3, T2);
465 case 0x2e: /* MMU passthrough, 0xexxxxxxxx */
466 case 0x2f: /* MMU passthrough, 0xfxxxxxxxx */
470 stb_phys((target_phys_addr_t)T0
471 | ((target_phys_addr_t)(asi & 0xf) << 32), T1);
474 stw_phys((target_phys_addr_t)(T0 & ~1)
475 | ((target_phys_addr_t)(asi & 0xf) << 32), T1);
479 stl_phys((target_phys_addr_t)(T0 & ~3)
480 | ((target_phys_addr_t)(asi & 0xf) << 32), T1);
483 stl_phys((target_phys_addr_t)(T0 & ~3)
484 | ((target_phys_addr_t)(asi & 0xf) << 32), T1);
485 stl_phys((target_phys_addr_t)((T0 + 4) & ~3)
486 | ((target_phys_addr_t)(asi & 0xf) << 32), T1);
491 case 0x31: /* Ross RT620 I-cache flush */
492 case 0x36: /* I-cache flash clear */
493 case 0x37: /* D-cache flash clear */
495 case 9: /* Supervisor code access, XXX */
496 case 0x21 ... 0x2d: /* MMU passthrough, unassigned */
498 do_unassigned_access(T0, 1, 0, 1);
503 #endif /* CONFIG_USER_ONLY */
504 #else /* TARGET_SPARC64 */
506 #ifdef CONFIG_USER_ONLY
507 void helper_ld_asi(int asi, int size, int sign)
512 raise_exception(TT_PRIV_ACT);
515 case 0x80: // Primary
516 case 0x82: // Primary no-fault
517 case 0x88: // Primary LE
518 case 0x8a: // Primary no-fault LE
525 ret = lduw_raw(T0 & ~1);
528 ret = ldl_raw(T0 & ~3);
532 ret = ldq_raw(T0 & ~7);
537 case 0x81: // Secondary
538 case 0x83: // Secondary no-fault
539 case 0x89: // Secondary LE
540 case 0x8b: // Secondary no-fault LE
547 /* Convert from little endian */
549 case 0x88: // Primary LE
550 case 0x89: // Secondary LE
551 case 0x8a: // Primary no-fault LE
552 case 0x8b: // Secondary no-fault LE
570 /* Convert to signed number */
589 void helper_st_asi(int asi, int size)
592 raise_exception(TT_PRIV_ACT);
594 /* Convert to little endian */
596 case 0x88: // Primary LE
597 case 0x89: // Secondary LE
616 case 0x80: // Primary
617 case 0x88: // Primary LE
624 stw_raw(T0 & ~1, T1);
627 stl_raw(T0 & ~3, T1);
631 stq_raw(T0 & ~7, T1);
636 case 0x81: // Secondary
637 case 0x89: // Secondary LE
641 case 0x82: // Primary no-fault, RO
642 case 0x83: // Secondary no-fault, RO
643 case 0x8a: // Primary no-fault LE, RO
644 case 0x8b: // Secondary no-fault LE, RO
646 do_unassigned_access(T0, 1, 0, 1);
651 #else /* CONFIG_USER_ONLY */
653 void helper_ld_asi(int asi, int size, int sign)
657 if (asi < 0x80 && (env->pstate & PS_PRIV) == 0)
658 raise_exception(TT_PRIV_ACT);
661 case 0x10: // As if user primary
662 case 0x18: // As if user primary LE
663 case 0x80: // Primary
664 case 0x82: // Primary no-fault
665 case 0x88: // Primary LE
666 case 0x8a: // Primary no-fault LE
667 if ((asi & 0x80) && (env->pstate & PS_PRIV)) {
670 ret = ldub_kernel(T0);
673 ret = lduw_kernel(T0 & ~1);
676 ret = ldl_kernel(T0 & ~3);
680 ret = ldq_kernel(T0 & ~7);
689 ret = lduw_user(T0 & ~1);
692 ret = ldl_user(T0 & ~3);
696 ret = ldq_user(T0 & ~7);
702 case 0x15: // Bypass, non-cacheable
703 case 0x1c: // Bypass LE
704 case 0x1d: // Bypass, non-cacheable LE
711 ret = lduw_phys(T0 & ~1);
714 ret = ldl_phys(T0 & ~3);
718 ret = ldq_phys(T0 & ~7);
723 case 0x04: // Nucleus
724 case 0x0c: // Nucleus Little Endian (LE)
725 case 0x11: // As if user secondary
726 case 0x19: // As if user secondary LE
727 case 0x24: // Nucleus quad LDD 128 bit atomic
728 case 0x2c: // Nucleus quad LDD 128 bit atomic
729 case 0x4a: // UPA config
730 case 0x81: // Secondary
731 case 0x83: // Secondary no-fault
732 case 0x89: // Secondary LE
733 case 0x8b: // Secondary no-fault LE
739 case 0x50: // I-MMU regs
741 int reg = (T0 >> 3) & 0xf;
743 ret = env->immuregs[reg];
746 case 0x51: // I-MMU 8k TSB pointer
747 case 0x52: // I-MMU 64k TSB pointer
748 case 0x55: // I-MMU data access
751 case 0x56: // I-MMU tag read
755 for (i = 0; i < 64; i++) {
756 // Valid, ctx match, vaddr match
757 if ((env->itlb_tte[i] & 0x8000000000000000ULL) != 0 &&
758 env->itlb_tag[i] == T0) {
759 ret = env->itlb_tag[i];
765 case 0x58: // D-MMU regs
767 int reg = (T0 >> 3) & 0xf;
769 ret = env->dmmuregs[reg];
772 case 0x5e: // D-MMU tag read
776 for (i = 0; i < 64; i++) {
777 // Valid, ctx match, vaddr match
778 if ((env->dtlb_tte[i] & 0x8000000000000000ULL) != 0 &&
779 env->dtlb_tag[i] == T0) {
780 ret = env->dtlb_tag[i];
786 case 0x59: // D-MMU 8k TSB pointer
787 case 0x5a: // D-MMU 64k TSB pointer
788 case 0x5b: // D-MMU data pointer
789 case 0x5d: // D-MMU data access
790 case 0x48: // Interrupt dispatch, RO
791 case 0x49: // Interrupt data receive
792 case 0x7f: // Incoming interrupt vector, RO
795 case 0x54: // I-MMU data in, WO
796 case 0x57: // I-MMU demap, WO
797 case 0x5c: // D-MMU data in, WO
798 case 0x5f: // D-MMU demap, WO
799 case 0x77: // Interrupt vector, WO
801 do_unassigned_access(T0, 0, 0, 1);
806 /* Convert from little endian */
808 case 0x0c: // Nucleus Little Endian (LE)
809 case 0x18: // As if user primary LE
810 case 0x19: // As if user secondary LE
811 case 0x1c: // Bypass LE
812 case 0x1d: // Bypass, non-cacheable LE
813 case 0x88: // Primary LE
814 case 0x89: // Secondary LE
815 case 0x8a: // Primary no-fault LE
816 case 0x8b: // Secondary no-fault LE
834 /* Convert to signed number */
853 void helper_st_asi(int asi, int size)
855 if (asi < 0x80 && (env->pstate & PS_PRIV) == 0)
856 raise_exception(TT_PRIV_ACT);
858 /* Convert to little endian */
860 case 0x0c: // Nucleus Little Endian (LE)
861 case 0x18: // As if user primary LE
862 case 0x19: // As if user secondary LE
863 case 0x1c: // Bypass LE
864 case 0x1d: // Bypass, non-cacheable LE
865 case 0x81: // Secondary
866 case 0x88: // Primary LE
867 case 0x89: // Secondary LE
886 case 0x10: // As if user primary
887 case 0x18: // As if user primary LE
888 case 0x80: // Primary
889 case 0x88: // Primary LE
890 if ((asi & 0x80) && (env->pstate & PS_PRIV)) {
896 stw_kernel(T0 & ~1, T1);
899 stl_kernel(T0 & ~3, T1);
903 stq_kernel(T0 & ~7, T1);
912 stw_user(T0 & ~1, T1);
915 stl_user(T0 & ~3, T1);
919 stq_user(T0 & ~7, T1);
925 case 0x15: // Bypass, non-cacheable
926 case 0x1c: // Bypass LE
927 case 0x1d: // Bypass, non-cacheable LE
934 stw_phys(T0 & ~1, T1);
937 stl_phys(T0 & ~3, T1);
941 stq_phys(T0 & ~7, T1);
946 case 0x04: // Nucleus
947 case 0x0c: // Nucleus Little Endian (LE)
948 case 0x11: // As if user secondary
949 case 0x19: // As if user secondary LE
950 case 0x24: // Nucleus quad LDD 128 bit atomic
951 case 0x2c: // Nucleus quad LDD 128 bit atomic
952 case 0x4a: // UPA config
953 case 0x89: // Secondary LE
961 env->lsu = T1 & (DMMU_E | IMMU_E);
962 // Mappings generated during D/I MMU disabled mode are
963 // invalid in normal mode
964 if (oldreg != env->lsu) {
966 printf("LSU change: 0x%" PRIx64 " -> 0x%" PRIx64 "\n", oldreg, env->lsu);
973 case 0x50: // I-MMU regs
975 int reg = (T0 >> 3) & 0xf;
978 oldreg = env->immuregs[reg];
983 case 1: // Not in I-MMU
990 T1 = 0; // Clear SFSR
992 case 5: // TSB access
993 case 6: // Tag access
997 env->immuregs[reg] = T1;
999 if (oldreg != env->immuregs[reg]) {
1000 printf("mmu change reg[%d]: 0x%08" PRIx64 " -> 0x%08" PRIx64 "\n", reg, oldreg, env->immuregs[reg]);
1006 case 0x54: // I-MMU data in
1010 // Try finding an invalid entry
1011 for (i = 0; i < 64; i++) {
1012 if ((env->itlb_tte[i] & 0x8000000000000000ULL) == 0) {
1013 env->itlb_tag[i] = env->immuregs[6];
1014 env->itlb_tte[i] = T1;
1018 // Try finding an unlocked entry
1019 for (i = 0; i < 64; i++) {
1020 if ((env->itlb_tte[i] & 0x40) == 0) {
1021 env->itlb_tag[i] = env->immuregs[6];
1022 env->itlb_tte[i] = T1;
1029 case 0x55: // I-MMU data access
1031 unsigned int i = (T0 >> 3) & 0x3f;
1033 env->itlb_tag[i] = env->immuregs[6];
1034 env->itlb_tte[i] = T1;
1037 case 0x57: // I-MMU demap
1040 case 0x58: // D-MMU regs
1042 int reg = (T0 >> 3) & 0xf;
1045 oldreg = env->dmmuregs[reg];
1051 if ((T1 & 1) == 0) {
1052 T1 = 0; // Clear SFSR, Fault address
1053 env->dmmuregs[4] = 0;
1055 env->dmmuregs[reg] = T1;
1057 case 1: // Primary context
1058 case 2: // Secondary context
1059 case 5: // TSB access
1060 case 6: // Tag access
1061 case 7: // Virtual Watchpoint
1062 case 8: // Physical Watchpoint
1066 env->dmmuregs[reg] = T1;
1068 if (oldreg != env->dmmuregs[reg]) {
1069 printf("mmu change reg[%d]: 0x%08" PRIx64 " -> 0x%08" PRIx64 "\n", reg, oldreg, env->dmmuregs[reg]);
1075 case 0x5c: // D-MMU data in
1079 // Try finding an invalid entry
1080 for (i = 0; i < 64; i++) {
1081 if ((env->dtlb_tte[i] & 0x8000000000000000ULL) == 0) {
1082 env->dtlb_tag[i] = env->dmmuregs[6];
1083 env->dtlb_tte[i] = T1;
1087 // Try finding an unlocked entry
1088 for (i = 0; i < 64; i++) {
1089 if ((env->dtlb_tte[i] & 0x40) == 0) {
1090 env->dtlb_tag[i] = env->dmmuregs[6];
1091 env->dtlb_tte[i] = T1;
1098 case 0x5d: // D-MMU data access
1100 unsigned int i = (T0 >> 3) & 0x3f;
1102 env->dtlb_tag[i] = env->dmmuregs[6];
1103 env->dtlb_tte[i] = T1;
1106 case 0x5f: // D-MMU demap
1107 case 0x49: // Interrupt data receive
1110 case 0x51: // I-MMU 8k TSB pointer, RO
1111 case 0x52: // I-MMU 64k TSB pointer, RO
1112 case 0x56: // I-MMU tag read, RO
1113 case 0x59: // D-MMU 8k TSB pointer, RO
1114 case 0x5a: // D-MMU 64k TSB pointer, RO
1115 case 0x5b: // D-MMU data pointer, RO
1116 case 0x5e: // D-MMU tag read, RO
1117 case 0x48: // Interrupt dispatch, RO
1118 case 0x7f: // Incoming interrupt vector, RO
1119 case 0x82: // Primary no-fault, RO
1120 case 0x83: // Secondary no-fault, RO
1121 case 0x8a: // Primary no-fault LE, RO
1122 case 0x8b: // Secondary no-fault LE, RO
1124 do_unassigned_access(T0, 1, 0, 1);
1128 #endif /* CONFIG_USER_ONLY */
1130 void helper_ldf_asi(int asi, int size, int rd)
1132 target_ulong tmp_T0 = T0, tmp_T1 = T1;
1136 case 0xf0: // Block load primary
1137 case 0xf1: // Block load secondary
1138 case 0xf8: // Block load primary LE
1139 case 0xf9: // Block load secondary LE
1140 for (i = 0; i < 8; i++) {
1141 helper_ld_asi(asi & 0x8f, 8, 0);
1142 *((int64_t *)&DT0) = T1;
1153 helper_ld_asi(asi, size, 0);
1157 *((uint32_t *)&FT0) = T1;
1160 *((int64_t *)&DT0) = T1;
1166 void helper_stf_asi(int asi, int size, int rd)
1168 target_ulong tmp_T0 = T0, tmp_T1 = T1;
1172 case 0xf0: // Block store primary
1173 case 0xf1: // Block store secondary
1174 case 0xf8: // Block store primary LE
1175 case 0xf9: // Block store secondary LE
1176 for (i = 0; i < 8; i++) {
1177 T1 = *((int64_t *)&DT0);
1178 helper_st_asi(asi & 0x8f, 8);
1192 T1 = *((uint32_t *)&FT0);
1195 T1 = *((int64_t *)&DT0);
1198 helper_st_asi(asi, size);
1202 #endif /* TARGET_SPARC64 */
1204 #ifndef TARGET_SPARC64
1209 if (env->psret == 1)
1210 raise_exception(TT_ILL_INSN);
1213 cwp = (env->cwp + 1) & (NWINDOWS - 1);
1214 if (env->wim & (1 << cwp)) {
1215 raise_exception(TT_WIN_UNF);
1218 env->psrs = env->psrps;
1222 void helper_ldfsr(void)
1225 switch (env->fsr & FSR_RD_MASK) {
1226 case FSR_RD_NEAREST:
1227 rnd_mode = float_round_nearest_even;
1231 rnd_mode = float_round_to_zero;
1234 rnd_mode = float_round_up;
1237 rnd_mode = float_round_down;
1240 set_float_rounding_mode(rnd_mode, &env->fp_status);
1245 env->exception_index = EXCP_DEBUG;
1249 #ifndef TARGET_SPARC64
1252 if ((T0 & PSR_CWP) >= NWINDOWS)
1253 raise_exception(TT_ILL_INSN);
1267 T0 = (T1 & 0x5555555555555555ULL) + ((T1 >> 1) & 0x5555555555555555ULL);
1268 T0 = (T0 & 0x3333333333333333ULL) + ((T0 >> 2) & 0x3333333333333333ULL);
1269 T0 = (T0 & 0x0f0f0f0f0f0f0f0fULL) + ((T0 >> 4) & 0x0f0f0f0f0f0f0f0fULL);
1270 T0 = (T0 & 0x00ff00ff00ff00ffULL) + ((T0 >> 8) & 0x00ff00ff00ff00ffULL);
1271 T0 = (T0 & 0x0000ffff0000ffffULL) + ((T0 >> 16) & 0x0000ffff0000ffffULL);
1272 T0 = (T0 & 0x00000000ffffffffULL) + ((T0 >> 32) & 0x00000000ffffffffULL);
1275 static inline uint64_t *get_gregset(uint64_t pstate)
1290 static inline void change_pstate(uint64_t new_pstate)
1292 uint64_t pstate_regs, new_pstate_regs;
1293 uint64_t *src, *dst;
1295 pstate_regs = env->pstate & 0xc01;
1296 new_pstate_regs = new_pstate & 0xc01;
1297 if (new_pstate_regs != pstate_regs) {
1298 // Switch global register bank
1299 src = get_gregset(new_pstate_regs);
1300 dst = get_gregset(pstate_regs);
1301 memcpy32(dst, env->gregs);
1302 memcpy32(env->gregs, src);
1304 env->pstate = new_pstate;
1307 void do_wrpstate(void)
1309 change_pstate(T0 & 0xf3f);
1315 env->pc = env->tnpc[env->tl];
1316 env->npc = env->tnpc[env->tl] + 4;
1317 PUT_CCR(env, env->tstate[env->tl] >> 32);
1318 env->asi = (env->tstate[env->tl] >> 24) & 0xff;
1319 change_pstate((env->tstate[env->tl] >> 8) & 0xf3f);
1320 PUT_CWP64(env, env->tstate[env->tl] & 0xff);
1326 env->pc = env->tpc[env->tl];
1327 env->npc = env->tnpc[env->tl];
1328 PUT_CCR(env, env->tstate[env->tl] >> 32);
1329 env->asi = (env->tstate[env->tl] >> 24) & 0xff;
1330 change_pstate((env->tstate[env->tl] >> 8) & 0xf3f);
1331 PUT_CWP64(env, env->tstate[env->tl] & 0xff);
1335 void set_cwp(int new_cwp)
1337 /* put the modified wrap registers at their proper location */
1338 if (env->cwp == (NWINDOWS - 1))
1339 memcpy32(env->regbase, env->regbase + NWINDOWS * 16);
1341 /* put the wrap registers at their temporary location */
1342 if (new_cwp == (NWINDOWS - 1))
1343 memcpy32(env->regbase + NWINDOWS * 16, env->regbase);
1344 env->regwptr = env->regbase + (new_cwp * 16);
1345 REGWPTR = env->regwptr;
1348 void cpu_set_cwp(CPUState *env1, int new_cwp)
1350 CPUState *saved_env;
1352 target_ulong *saved_regwptr;
1357 saved_regwptr = REGWPTR;
1363 REGWPTR = saved_regwptr;
1367 #ifdef TARGET_SPARC64
1368 void do_interrupt(int intno)
1371 if (loglevel & CPU_LOG_INT) {
1373 fprintf(logfile, "%6d: v=%04x pc=%016" PRIx64 " npc=%016" PRIx64 " SP=%016" PRIx64 "\n",
1376 env->npc, env->regwptr[6]);
1377 cpu_dump_state(env, logfile, fprintf, 0);
1383 fprintf(logfile, " code=");
1384 ptr = (uint8_t *)env->pc;
1385 for(i = 0; i < 16; i++) {
1386 fprintf(logfile, " %02x", ldub(ptr + i));
1388 fprintf(logfile, "\n");
1394 #if !defined(CONFIG_USER_ONLY)
1395 if (env->tl == MAXTL) {
1396 cpu_abort(env, "Trap 0x%04x while trap level is MAXTL, Error state", env->exception_index);
1400 env->tstate[env->tl] = ((uint64_t)GET_CCR(env) << 32) | ((env->asi & 0xff) << 24) |
1401 ((env->pstate & 0xf3f) << 8) | GET_CWP64(env);
1402 env->tpc[env->tl] = env->pc;
1403 env->tnpc[env->tl] = env->npc;
1404 env->tt[env->tl] = intno;
1405 change_pstate(PS_PEF | PS_PRIV | PS_AG);
1407 if (intno == TT_CLRWIN)
1408 set_cwp((env->cwp - 1) & (NWINDOWS - 1));
1409 else if ((intno & 0x1c0) == TT_SPILL)
1410 set_cwp((env->cwp - env->cansave - 2) & (NWINDOWS - 1));
1411 else if ((intno & 0x1c0) == TT_FILL)
1412 set_cwp((env->cwp + 1) & (NWINDOWS - 1));
1413 env->tbr &= ~0x7fffULL;
1414 env->tbr |= ((env->tl > 1) ? 1 << 14 : 0) | (intno << 5);
1415 if (env->tl < MAXTL - 1) {
1418 env->pstate |= PS_RED;
1419 if (env->tl != MAXTL)
1423 env->npc = env->pc + 4;
1424 env->exception_index = 0;
1427 void do_interrupt(int intno)
1432 if (loglevel & CPU_LOG_INT) {
1434 fprintf(logfile, "%6d: v=%02x pc=%08x npc=%08x SP=%08x\n",
1437 env->npc, env->regwptr[6]);
1438 cpu_dump_state(env, logfile, fprintf, 0);
1444 fprintf(logfile, " code=");
1445 ptr = (uint8_t *)env->pc;
1446 for(i = 0; i < 16; i++) {
1447 fprintf(logfile, " %02x", ldub(ptr + i));
1449 fprintf(logfile, "\n");
1455 #if !defined(CONFIG_USER_ONLY)
1456 if (env->psret == 0) {
1457 cpu_abort(env, "Trap 0x%02x while interrupts disabled, Error state", env->exception_index);
1462 cwp = (env->cwp - 1) & (NWINDOWS - 1);
1464 env->regwptr[9] = env->pc;
1465 env->regwptr[10] = env->npc;
1466 env->psrps = env->psrs;
1468 env->tbr = (env->tbr & TBR_BASE_MASK) | (intno << 4);
1470 env->npc = env->pc + 4;
1471 env->exception_index = 0;
1475 #if !defined(CONFIG_USER_ONLY)
1477 static void do_unaligned_access(target_ulong addr, int is_write, int is_user,
1480 #define MMUSUFFIX _mmu
1481 #define ALIGNED_ONLY
1482 #define GETPC() (__builtin_return_address(0))
1485 #include "softmmu_template.h"
1488 #include "softmmu_template.h"
1491 #include "softmmu_template.h"
1494 #include "softmmu_template.h"
1496 static void do_unaligned_access(target_ulong addr, int is_write, int is_user,
1499 #ifdef DEBUG_UNALIGNED
1500 printf("Unaligned access to 0x%x from 0x%x\n", addr, env->pc);
1502 raise_exception(TT_UNALIGNED);
1505 /* try to fill the TLB and return an exception if error. If retaddr is
1506 NULL, it means that the function was called in C code (i.e. not
1507 from generated code or from helper.c) */
1508 /* XXX: fix it to restore all registers */
1509 void tlb_fill(target_ulong addr, int is_write, int is_user, void *retaddr)
1511 TranslationBlock *tb;
1514 CPUState *saved_env;
1516 /* XXX: hack to restore env in all cases, even if not called from
1519 env = cpu_single_env;
1521 ret = cpu_sparc_handle_mmu_fault(env, addr, is_write, is_user, 1);
1524 /* now we have a real cpu fault */
1525 pc = (unsigned long)retaddr;
1526 tb = tb_find_pc(pc);
1528 /* the PC is inside the translated code. It means that we have
1529 a virtual CPU fault */
1530 cpu_restore_state(tb, env, pc, (void *)T2);
1540 #ifndef TARGET_SPARC64
1541 void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
1544 CPUState *saved_env;
1546 /* XXX: hack to restore env in all cases, even if not called from
1549 env = cpu_single_env;
1550 if (env->mmuregs[3]) /* Fault status register */
1551 env->mmuregs[3] = 1; /* overflow (not read before another fault) */
1553 env->mmuregs[3] |= 1 << 16;
1555 env->mmuregs[3] |= 1 << 5;
1557 env->mmuregs[3] |= 1 << 6;
1559 env->mmuregs[3] |= 1 << 7;
1560 env->mmuregs[3] |= (5 << 2) | 2;
1561 env->mmuregs[4] = addr; /* Fault address register */
1562 if ((env->mmuregs[0] & MMU_E) && !(env->mmuregs[0] & MMU_NF)) {
1563 #ifdef DEBUG_UNASSIGNED
1564 printf("Unassigned mem access to " TARGET_FMT_plx " from " TARGET_FMT_lx
1565 "\n", addr, env->pc);
1568 raise_exception(TT_CODE_ACCESS);
1570 raise_exception(TT_DATA_ACCESS);
1575 void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
1578 #ifdef DEBUG_UNASSIGNED
1579 CPUState *saved_env;
1581 /* XXX: hack to restore env in all cases, even if not called from
1584 env = cpu_single_env;
1585 printf("Unassigned mem access to " TARGET_FMT_plx " from " TARGET_FMT_lx "\n",
1590 raise_exception(TT_CODE_ACCESS);
1592 raise_exception(TT_DATA_ACCESS);
1596 #ifdef TARGET_SPARC64
1597 void do_tick_set_count(void *opaque, uint64_t count)
1599 #if !defined(CONFIG_USER_ONLY)
1600 ptimer_set_count(opaque, -count);
1604 uint64_t do_tick_get_count(void *opaque)
1606 #if !defined(CONFIG_USER_ONLY)
1607 return -ptimer_get_count(opaque);
1613 void do_tick_set_limit(void *opaque, uint64_t limit)
1615 #if !defined(CONFIG_USER_ONLY)
1616 ptimer_set_limit(opaque, -limit, 0);