6 void raise_exception(int tt)
8 env->exception_index = tt;
12 #ifdef USE_INT_TO_FLOAT_HELPERS
15 FT0 = (float) *((int32_t *)&FT1);
20 DT0 = (double) *((int32_t *)&FT1);
26 FT0 = float32_abs(FT1);
32 DT0 = float64_abs(DT1);
38 FT0 = float32_sqrt(FT1, &env->fp_status);
43 DT0 = float64_sqrt(DT1, &env->fp_status);
49 env->fsr &= ~((FSR_FCC1 | FSR_FCC0) << FS);
50 if (isnan(FT0) || isnan(FT1)) {
51 T0 = (FSR_FCC1 | FSR_FCC0) << FS;
52 if (env->fsr & FSR_NVM) {
54 raise_exception(TT_FP_EXCP);
58 } else if (FT0 < FT1) {
60 } else if (FT0 > FT1) {
70 env->fsr &= ~((FSR_FCC1 | FSR_FCC0) << FS);
71 if (isnan(DT0) || isnan(DT1)) {
72 T0 = (FSR_FCC1 | FSR_FCC0) << FS;
73 if (env->fsr & FSR_NVM) {
75 raise_exception(TT_FP_EXCP);
79 } else if (DT0 < DT1) {
81 } else if (DT0 > DT1) {
92 void do_fcmps_fcc1 (void)
94 env->fsr &= ~((FSR_FCC1 | FSR_FCC0) << FS);
95 if (isnan(FT0) || isnan(FT1)) {
96 T0 = (FSR_FCC1 | FSR_FCC0) << FS;
97 if (env->fsr & FSR_NVM) {
99 raise_exception(TT_FP_EXCP);
103 } else if (FT0 < FT1) {
105 } else if (FT0 > FT1) {
113 void do_fcmpd_fcc1 (void)
115 env->fsr &= ~((FSR_FCC1 | FSR_FCC0) << FS);
116 if (isnan(DT0) || isnan(DT1)) {
117 T0 = (FSR_FCC1 | FSR_FCC0) << FS;
118 if (env->fsr & FSR_NVM) {
120 raise_exception(TT_FP_EXCP);
124 } else if (DT0 < DT1) {
126 } else if (DT0 > DT1) {
136 void do_fcmps_fcc2 (void)
138 env->fsr &= ~((FSR_FCC1 | FSR_FCC0) << FS);
139 if (isnan(FT0) || isnan(FT1)) {
140 T0 = (FSR_FCC1 | FSR_FCC0) << FS;
141 if (env->fsr & FSR_NVM) {
143 raise_exception(TT_FP_EXCP);
147 } else if (FT0 < FT1) {
149 } else if (FT0 > FT1) {
157 void do_fcmpd_fcc2 (void)
159 env->fsr &= ~((FSR_FCC1 | FSR_FCC0) << FS);
160 if (isnan(DT0) || isnan(DT1)) {
161 T0 = (FSR_FCC1 | FSR_FCC0) << FS;
162 if (env->fsr & FSR_NVM) {
164 raise_exception(TT_FP_EXCP);
168 } else if (DT0 < DT1) {
170 } else if (DT0 > DT1) {
180 void do_fcmps_fcc3 (void)
182 env->fsr &= ~((FSR_FCC1 | FSR_FCC0) << FS);
183 if (isnan(FT0) || isnan(FT1)) {
184 T0 = (FSR_FCC1 | FSR_FCC0) << FS;
185 if (env->fsr & FSR_NVM) {
187 raise_exception(TT_FP_EXCP);
191 } else if (FT0 < FT1) {
193 } else if (FT0 > FT1) {
201 void do_fcmpd_fcc3 (void)
203 env->fsr &= ~((FSR_FCC1 | FSR_FCC0) << FS);
204 if (isnan(DT0) || isnan(DT1)) {
205 T0 = (FSR_FCC1 | FSR_FCC0) << FS;
206 if (env->fsr & FSR_NVM) {
208 raise_exception(TT_FP_EXCP);
212 } else if (DT0 < DT1) {
214 } else if (DT0 > DT1) {
224 #ifndef TARGET_SPARC64
225 void helper_ld_asi(int asi, int size, int sign)
230 case 3: /* MMU probe */
234 mmulev = (T0 >> 8) & 15;
238 ret = mmu_probe(env, T0, mmulev);
242 printf("mmu_probe: 0x%08x (lev %d) -> 0x%08x\n", T0, mmulev, ret);
246 case 4: /* read MMU regs */
248 int reg = (T0 >> 8) & 0xf;
250 ret = env->mmuregs[reg];
251 if (reg == 3) /* Fault status cleared on read */
252 env->mmuregs[reg] = 0;
254 printf("mmu_read: reg[%d] = 0x%08x\n", reg, ret);
258 case 0x20 ... 0x2f: /* MMU passthrough */
259 cpu_physical_memory_read(T0, (void *) &ret, size);
263 tswap16s((uint16_t *)&ret);
272 void helper_st_asi(int asi, int size, int sign)
275 case 3: /* MMU flush */
279 mmulev = (T0 >> 8) & 15;
281 printf("mmu flush level %d\n", mmulev);
284 case 0: // flush page
285 tlb_flush_page(env, T0 & 0xfffff000);
287 case 1: // flush segment (256k)
288 case 2: // flush region (16M)
289 case 3: // flush context (4G)
290 case 4: // flush entire
301 case 4: /* write MMU regs */
303 int reg = (T0 >> 8) & 0xf;
306 oldreg = env->mmuregs[reg];
309 env->mmuregs[reg] &= ~(MMU_E | MMU_NF);
310 env->mmuregs[reg] |= T1 & (MMU_E | MMU_NF);
311 // Mappings generated during no-fault mode or MMU
312 // disabled mode are invalid in normal mode
313 if (oldreg != env->mmuregs[reg])
317 env->mmuregs[reg] = T1;
318 if (oldreg != env->mmuregs[reg]) {
319 /* we flush when the MMU context changes because
320 QEMU has no MMU context support */
328 env->mmuregs[reg] = T1;
332 if (oldreg != env->mmuregs[reg]) {
333 printf("mmu change reg[%d]: 0x%08x -> 0x%08x\n", reg, oldreg, env->mmuregs[reg]);
339 case 0x17: /* Block copy, sta access */
342 // address (T0) = dst
344 uint32_t src = T1, dst = T0;
349 cpu_physical_memory_read(src, (void *) &temp, 32);
350 cpu_physical_memory_write(dst, (void *) &temp, 32);
353 case 0x1f: /* Block fill, stda access */
356 // address (T0) = dst
362 val = (((uint64_t)T1) << 32) | T2;
365 for (i = 0; i < 32; i += 8, dst += 8) {
366 cpu_physical_memory_write(dst, (void *) &val, 8);
370 case 0x20 ... 0x2f: /* MMU passthrough */
376 tswap16s((uint16_t *)&temp);
377 cpu_physical_memory_write(T0, (void *) &temp, size);
387 void helper_ld_asi(int asi, int size, int sign)
391 if (asi < 0x80 && (env->pstate & PS_PRIV) == 0)
392 raise_exception(TT_PRIV_ACT);
396 case 0x15: // Bypass, non-cacheable
398 cpu_physical_memory_read(T0, (void *) &ret, size);
402 tswap32s((uint32_t *)&ret);
404 tswap16s((uint16_t *)&ret);
407 case 0x04: // Nucleus
408 case 0x0c: // Nucleus Little Endian (LE)
409 case 0x10: // As if user primary
410 case 0x11: // As if user secondary
411 case 0x18: // As if user primary LE
412 case 0x19: // As if user secondary LE
413 case 0x1c: // Bypass LE
414 case 0x1d: // Bypass, non-cacheable LE
415 case 0x24: // Nucleus quad LDD 128 bit atomic
416 case 0x2c: // Nucleus quad LDD 128 bit atomic
417 case 0x4a: // UPA config
418 case 0x82: // Primary no-fault
419 case 0x83: // Secondary no-fault
420 case 0x88: // Primary LE
421 case 0x89: // Secondary LE
422 case 0x8a: // Primary no-fault LE
423 case 0x8b: // Secondary no-fault LE
429 case 0x50: // I-MMU regs
431 int reg = (T0 >> 3) & 0xf;
433 ret = env->immuregs[reg];
436 case 0x51: // I-MMU 8k TSB pointer
437 case 0x52: // I-MMU 64k TSB pointer
438 case 0x55: // I-MMU data access
441 case 0x56: // I-MMU tag read
445 for (i = 0; i < 64; i++) {
446 // Valid, ctx match, vaddr match
447 if ((env->itlb_tte[i] & 0x8000000000000000ULL) != 0 &&
448 env->itlb_tag[i] == T0) {
449 ret = env->itlb_tag[i];
455 case 0x58: // D-MMU regs
457 int reg = (T0 >> 3) & 0xf;
459 ret = env->dmmuregs[reg];
462 case 0x5e: // D-MMU tag read
466 for (i = 0; i < 64; i++) {
467 // Valid, ctx match, vaddr match
468 if ((env->dtlb_tte[i] & 0x8000000000000000ULL) != 0 &&
469 env->dtlb_tag[i] == T0) {
470 ret = env->dtlb_tag[i];
476 case 0x59: // D-MMU 8k TSB pointer
477 case 0x5a: // D-MMU 64k TSB pointer
478 case 0x5b: // D-MMU data pointer
479 case 0x5d: // D-MMU data access
480 case 0x48: // Interrupt dispatch, RO
481 case 0x49: // Interrupt data receive
482 case 0x7f: // Incoming interrupt vector, RO
485 case 0x54: // I-MMU data in, WO
486 case 0x57: // I-MMU demap, WO
487 case 0x5c: // D-MMU data in, WO
488 case 0x5f: // D-MMU demap, WO
489 case 0x77: // Interrupt vector, WO
497 void helper_st_asi(int asi, int size, int sign)
499 if (asi < 0x80 && (env->pstate & PS_PRIV) == 0)
500 raise_exception(TT_PRIV_ACT);
504 case 0x15: // Bypass, non-cacheable
506 target_ulong temp = T1;
510 tswap32s((uint32_t *)&temp);
512 tswap16s((uint16_t *)&temp);
513 cpu_physical_memory_write(T0, (void *) &temp, size);
516 case 0x04: // Nucleus
517 case 0x0c: // Nucleus Little Endian (LE)
518 case 0x10: // As if user primary
519 case 0x11: // As if user secondary
520 case 0x18: // As if user primary LE
521 case 0x19: // As if user secondary LE
522 case 0x1c: // Bypass LE
523 case 0x1d: // Bypass, non-cacheable LE
524 case 0x24: // Nucleus quad LDD 128 bit atomic
525 case 0x2c: // Nucleus quad LDD 128 bit atomic
526 case 0x4a: // UPA config
527 case 0x88: // Primary LE
528 case 0x89: // Secondary LE
536 env->lsu = T1 & (DMMU_E | IMMU_E);
537 // Mappings generated during D/I MMU disabled mode are
538 // invalid in normal mode
539 if (oldreg != env->lsu) {
541 printf("LSU change: 0x%llx -> 0x%llx\n", oldreg, env->lsu);
548 case 0x50: // I-MMU regs
550 int reg = (T0 >> 3) & 0xf;
553 oldreg = env->immuregs[reg];
558 case 1: // Not in I-MMU
565 T1 = 0; // Clear SFSR
567 case 5: // TSB access
568 case 6: // Tag access
572 env->immuregs[reg] = T1;
574 if (oldreg != env->immuregs[reg]) {
575 printf("mmu change reg[%d]: 0x%08llx -> 0x%08llx\n", reg, oldreg, env->immuregs[reg]);
581 case 0x54: // I-MMU data in
585 // Try finding an invalid entry
586 for (i = 0; i < 64; i++) {
587 if ((env->itlb_tte[i] & 0x8000000000000000ULL) == 0) {
588 env->itlb_tag[i] = env->immuregs[6];
589 env->itlb_tte[i] = T1;
593 // Try finding an unlocked entry
594 for (i = 0; i < 64; i++) {
595 if ((env->itlb_tte[i] & 0x40) == 0) {
596 env->itlb_tag[i] = env->immuregs[6];
597 env->itlb_tte[i] = T1;
604 case 0x55: // I-MMU data access
606 unsigned int i = (T0 >> 3) & 0x3f;
608 env->itlb_tag[i] = env->immuregs[6];
609 env->itlb_tte[i] = T1;
612 case 0x57: // I-MMU demap
615 case 0x58: // D-MMU regs
617 int reg = (T0 >> 3) & 0xf;
620 oldreg = env->dmmuregs[reg];
627 T1 = 0; // Clear SFSR, Fault address
628 env->dmmuregs[4] = 0;
630 env->dmmuregs[reg] = T1;
632 case 1: // Primary context
633 case 2: // Secondary context
634 case 5: // TSB access
635 case 6: // Tag access
636 case 7: // Virtual Watchpoint
637 case 8: // Physical Watchpoint
641 env->dmmuregs[reg] = T1;
643 if (oldreg != env->dmmuregs[reg]) {
644 printf("mmu change reg[%d]: 0x%08llx -> 0x%08llx\n", reg, oldreg, env->dmmuregs[reg]);
650 case 0x5c: // D-MMU data in
654 // Try finding an invalid entry
655 for (i = 0; i < 64; i++) {
656 if ((env->dtlb_tte[i] & 0x8000000000000000ULL) == 0) {
657 env->dtlb_tag[i] = env->dmmuregs[6];
658 env->dtlb_tte[i] = T1;
662 // Try finding an unlocked entry
663 for (i = 0; i < 64; i++) {
664 if ((env->dtlb_tte[i] & 0x40) == 0) {
665 env->dtlb_tag[i] = env->dmmuregs[6];
666 env->dtlb_tte[i] = T1;
673 case 0x5d: // D-MMU data access
675 unsigned int i = (T0 >> 3) & 0x3f;
677 env->dtlb_tag[i] = env->dmmuregs[6];
678 env->dtlb_tte[i] = T1;
681 case 0x5f: // D-MMU demap
682 case 0x49: // Interrupt data receive
685 case 0x51: // I-MMU 8k TSB pointer, RO
686 case 0x52: // I-MMU 64k TSB pointer, RO
687 case 0x56: // I-MMU tag read, RO
688 case 0x59: // D-MMU 8k TSB pointer, RO
689 case 0x5a: // D-MMU 64k TSB pointer, RO
690 case 0x5b: // D-MMU data pointer, RO
691 case 0x5e: // D-MMU tag read, RO
692 case 0x48: // Interrupt dispatch, RO
693 case 0x7f: // Incoming interrupt vector, RO
694 case 0x82: // Primary no-fault, RO
695 case 0x83: // Secondary no-fault, RO
696 case 0x8a: // Primary no-fault LE, RO
697 case 0x8b: // Secondary no-fault LE, RO
705 #ifndef TARGET_SPARC64
711 cwp = (env->cwp + 1) & (NWINDOWS - 1);
712 if (env->wim & (1 << cwp)) {
713 raise_exception(TT_WIN_UNF);
716 env->psrs = env->psrps;
720 void helper_ldfsr(void)
723 switch (env->fsr & FSR_RD_MASK) {
725 rnd_mode = float_round_nearest_even;
729 rnd_mode = float_round_to_zero;
732 rnd_mode = float_round_up;
735 rnd_mode = float_round_down;
738 set_float_rounding_mode(rnd_mode, &env->fp_status);
741 void cpu_get_fp64(uint64_t *pmant, uint16_t *pexp, double f)
745 *pmant = ldexp(frexp(f, &exptemp), 53);
749 double cpu_put_fp64(uint64_t mant, uint16_t exp)
751 return ldexp((double) mant, exp - 53);
756 env->exception_index = EXCP_DEBUG;
760 #ifndef TARGET_SPARC64
775 T0 = (T1 & 0x5555555555555555ULL) + ((T1 >> 1) & 0x5555555555555555ULL);
776 T0 = (T0 & 0x3333333333333333ULL) + ((T0 >> 2) & 0x3333333333333333ULL);
777 T0 = (T0 & 0x0f0f0f0f0f0f0f0fULL) + ((T0 >> 4) & 0x0f0f0f0f0f0f0f0fULL);
778 T0 = (T0 & 0x00ff00ff00ff00ffULL) + ((T0 >> 8) & 0x00ff00ff00ff00ffULL);
779 T0 = (T0 & 0x0000ffff0000ffffULL) + ((T0 >> 16) & 0x0000ffff0000ffffULL);
780 T0 = (T0 & 0x00000000ffffffffULL) + ((T0 >> 32) & 0x00000000ffffffffULL);
783 static inline uint64_t *get_gregset(uint64_t pstate)
800 uint64_t new_pstate, pstate_regs, new_pstate_regs;
803 new_pstate = T0 & 0xf3f;
804 pstate_regs = env->pstate & 0xc01;
805 new_pstate_regs = new_pstate & 0xc01;
806 if (new_pstate_regs != pstate_regs) {
807 // Switch global register bank
808 src = get_gregset(new_pstate_regs);
809 dst = get_gregset(pstate_regs);
810 memcpy32(dst, env->gregs);
811 memcpy32(env->gregs, src);
813 env->pstate = new_pstate;
819 env->pc = env->tnpc[env->tl];
820 env->npc = env->tnpc[env->tl] + 4;
821 PUT_CCR(env, env->tstate[env->tl] >> 32);
822 env->asi = (env->tstate[env->tl] >> 24) & 0xff;
823 env->pstate = (env->tstate[env->tl] >> 8) & 0xfff;
824 set_cwp(env->tstate[env->tl] & 0xff);
830 env->pc = env->tpc[env->tl];
831 env->npc = env->tnpc[env->tl];
832 PUT_CCR(env, env->tstate[env->tl] >> 32);
833 env->asi = (env->tstate[env->tl] >> 24) & 0xff;
834 env->pstate = (env->tstate[env->tl] >> 8) & 0xfff;
835 set_cwp(env->tstate[env->tl] & 0xff);
839 void set_cwp(int new_cwp)
841 /* put the modified wrap registers at their proper location */
842 if (env->cwp == (NWINDOWS - 1))
843 memcpy32(env->regbase, env->regbase + NWINDOWS * 16);
845 /* put the wrap registers at their temporary location */
846 if (new_cwp == (NWINDOWS - 1))
847 memcpy32(env->regbase + NWINDOWS * 16, env->regbase);
848 env->regwptr = env->regbase + (new_cwp * 16);
849 REGWPTR = env->regwptr;
852 void cpu_set_cwp(CPUState *env1, int new_cwp)
856 target_ulong *saved_regwptr;
861 saved_regwptr = REGWPTR;
867 REGWPTR = saved_regwptr;
871 #ifdef TARGET_SPARC64
872 void do_interrupt(int intno)
875 if (loglevel & CPU_LOG_INT) {
877 fprintf(logfile, "%6d: v=%04x pc=%016llx npc=%016llx SP=%016llx\n",
880 env->npc, env->regwptr[6]);
881 cpu_dump_state(env, logfile, fprintf, 0);
887 fprintf(logfile, " code=");
888 ptr = (uint8_t *)env->pc;
889 for(i = 0; i < 16; i++) {
890 fprintf(logfile, " %02x", ldub(ptr + i));
892 fprintf(logfile, "\n");
898 #if !defined(CONFIG_USER_ONLY)
899 if (env->tl == MAXTL) {
900 cpu_abort(cpu_single_env, "Trap 0x%04x while trap level is MAXTL, Error state", env->exception_index);
904 env->tstate[env->tl] = ((uint64_t)GET_CCR(env) << 32) | ((env->asi & 0xff) << 24) |
905 ((env->pstate & 0xfff) << 8) | (env->cwp & 0xff);
906 env->tpc[env->tl] = env->pc;
907 env->tnpc[env->tl] = env->npc;
908 env->tt[env->tl] = intno;
909 env->pstate = PS_PEF | PS_PRIV | PS_AG;
910 env->tbr &= ~0x7fffULL;
911 env->tbr |= ((env->tl > 1) ? 1 << 14 : 0) | (intno << 5);
912 if (env->tl < MAXTL - 1) {
915 env->pstate |= PS_RED;
916 if (env->tl != MAXTL)
920 env->npc = env->pc + 4;
921 env->exception_index = 0;
924 void do_interrupt(int intno)
929 if (loglevel & CPU_LOG_INT) {
931 fprintf(logfile, "%6d: v=%02x pc=%08x npc=%08x SP=%08x\n",
934 env->npc, env->regwptr[6]);
935 cpu_dump_state(env, logfile, fprintf, 0);
941 fprintf(logfile, " code=");
942 ptr = (uint8_t *)env->pc;
943 for(i = 0; i < 16; i++) {
944 fprintf(logfile, " %02x", ldub(ptr + i));
946 fprintf(logfile, "\n");
952 #if !defined(CONFIG_USER_ONLY)
953 if (env->psret == 0) {
954 cpu_abort(cpu_single_env, "Trap 0x%02x while interrupts disabled, Error state", env->exception_index);
959 cwp = (env->cwp - 1) & (NWINDOWS - 1);
961 env->regwptr[9] = env->pc;
962 env->regwptr[10] = env->npc;
963 env->psrps = env->psrs;
965 env->tbr = (env->tbr & TBR_BASE_MASK) | (intno << 4);
967 env->npc = env->pc + 4;
968 env->exception_index = 0;
972 #if !defined(CONFIG_USER_ONLY)
974 #define MMUSUFFIX _mmu
975 #define GETPC() (__builtin_return_address(0))
978 #include "softmmu_template.h"
981 #include "softmmu_template.h"
984 #include "softmmu_template.h"
987 #include "softmmu_template.h"
990 /* try to fill the TLB and return an exception if error. If retaddr is
991 NULL, it means that the function was called in C code (i.e. not
992 from generated code or from helper.c) */
993 /* XXX: fix it to restore all registers */
994 void tlb_fill(target_ulong addr, int is_write, int is_user, void *retaddr)
996 TranslationBlock *tb;
1001 /* XXX: hack to restore env in all cases, even if not called from
1004 env = cpu_single_env;
1006 ret = cpu_sparc_handle_mmu_fault(env, addr, is_write, is_user, 1);
1009 /* now we have a real cpu fault */
1010 pc = (unsigned long)retaddr;
1011 tb = tb_find_pc(pc);
1013 /* the PC is inside the translated code. It means that we have
1014 a virtual CPU fault */
1015 cpu_restore_state(tb, env, pc, (void *)T2);