4 * Copyright (c) 2005 Samuel Tardieu
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, see <http://www.gnu.org/licenses/>.
22 #include "dyngen-exec.h"
25 static void cpu_restore_state_from_retaddr(uintptr_t retaddr)
30 tb = tb_find_pc(retaddr);
32 /* the PC is inside the translated code. It means that we have
33 a virtual CPU fault */
34 cpu_restore_state(tb, env, retaddr);
39 #ifndef CONFIG_USER_ONLY
40 #include "softmmu_exec.h"
42 #define MMUSUFFIX _mmu
45 #include "softmmu_template.h"
48 #include "softmmu_template.h"
51 #include "softmmu_template.h"
54 #include "softmmu_template.h"
56 void tlb_fill(CPUSH4State *env1, target_ulong addr, int is_write, int mmu_idx,
59 CPUSH4State *saved_env;
64 ret = cpu_sh4_handle_mmu_fault(env, addr, is_write, mmu_idx);
66 /* now we have a real cpu fault */
67 cpu_restore_state_from_retaddr(retaddr);
75 void helper_ldtlb(void)
77 #ifdef CONFIG_USER_ONLY
79 cpu_abort(env, "Unhandled ldtlb");
85 static inline void raise_exception(int index, uintptr_t retaddr)
87 env->exception_index = index;
88 cpu_restore_state_from_retaddr(retaddr);
92 void helper_raise_illegal_instruction(void)
94 raise_exception(0x180, GETPC());
97 void helper_raise_slot_illegal_instruction(void)
99 raise_exception(0x1a0, GETPC());
102 void helper_raise_fpu_disable(void)
104 raise_exception(0x800, GETPC());
107 void helper_raise_slot_fpu_disable(void)
109 raise_exception(0x820, GETPC());
112 void helper_debug(void)
114 env->exception_index = EXCP_DEBUG;
118 void helper_sleep(uint32_t next_pc)
122 env->exception_index = EXCP_HLT;
127 void helper_trapa(uint32_t tra)
130 raise_exception(0x160, GETPC());
133 void helper_movcal(uint32_t address, uint32_t value)
135 if (cpu_sh4_is_cached (env, address))
137 memory_content *r = malloc (sizeof(memory_content));
138 r->address = address;
142 *(env->movcal_backup_tail) = r;
143 env->movcal_backup_tail = &(r->next);
147 void helper_discard_movcal_backup(void)
149 memory_content *current = env->movcal_backup;
153 memory_content *next = current->next;
155 env->movcal_backup = current = next;
157 env->movcal_backup_tail = &(env->movcal_backup);
161 void helper_ocbi(uint32_t address)
163 memory_content **current = &(env->movcal_backup);
166 uint32_t a = (*current)->address;
167 if ((a & ~0x1F) == (address & ~0x1F))
169 memory_content *next = (*current)->next;
170 stl(a, (*current)->value);
174 env->movcal_backup_tail = current;
184 uint32_t helper_addc(uint32_t arg0, uint32_t arg1)
190 arg1 = tmp1 + (env->sr & 1);
200 uint32_t helper_addv(uint32_t arg0, uint32_t arg1)
202 uint32_t dest, src, ans;
204 if ((int32_t) arg1 >= 0)
208 if ((int32_t) arg0 >= 0)
214 if ((int32_t) arg1 >= 0)
219 if (src == 0 || src == 2) {
229 #define T (env->sr & SR_T)
230 #define Q (env->sr & SR_Q ? 1 : 0)
231 #define M (env->sr & SR_M ? 1 : 0)
232 #define SETT env->sr |= SR_T
233 #define CLRT env->sr &= ~SR_T
234 #define SETQ env->sr |= SR_Q
235 #define CLRQ env->sr &= ~SR_Q
236 #define SETM env->sr |= SR_M
237 #define CLRM env->sr &= ~SR_M
239 uint32_t helper_div1(uint32_t arg0, uint32_t arg1)
242 uint8_t old_q, tmp1 = 0xff;
244 //printf("div1 arg0=0x%08x arg1=0x%08x M=%d Q=%d T=%d\n", arg0, arg1, M, Q, T);
246 if ((0x80000000 & arg1) != 0)
343 //printf("Output: arg1=0x%08x M=%d Q=%d T=%d\n", arg1, M, Q, T);
347 void helper_macl(uint32_t arg0, uint32_t arg1)
351 res = ((uint64_t) env->mach << 32) | env->macl;
352 res += (int64_t) (int32_t) arg0 *(int64_t) (int32_t) arg1;
353 env->mach = (res >> 32) & 0xffffffff;
354 env->macl = res & 0xffffffff;
355 if (env->sr & SR_S) {
357 env->mach |= 0xffff0000;
359 env->mach &= 0x00007fff;
363 void helper_macw(uint32_t arg0, uint32_t arg1)
367 res = ((uint64_t) env->mach << 32) | env->macl;
368 res += (int64_t) (int16_t) arg0 *(int64_t) (int16_t) arg1;
369 env->mach = (res >> 32) & 0xffffffff;
370 env->macl = res & 0xffffffff;
371 if (env->sr & SR_S) {
372 if (res < -0x80000000) {
374 env->macl = 0x80000000;
375 } else if (res > 0x000000007fffffff) {
377 env->macl = 0x7fffffff;
382 uint32_t helper_subc(uint32_t arg0, uint32_t arg1)
388 arg1 = tmp1 - (env->sr & SR_T);
398 uint32_t helper_subv(uint32_t arg0, uint32_t arg1)
400 int32_t dest, src, ans;
402 if ((int32_t) arg1 >= 0)
406 if ((int32_t) arg0 >= 0)
412 if ((int32_t) arg1 >= 0)
427 static inline void set_t(void)
432 static inline void clr_t(void)
437 void helper_ld_fpscr(uint32_t val)
439 env->fpscr = val & FPSCR_MASK;
440 if ((val & FPSCR_RM_MASK) == FPSCR_RM_ZERO) {
441 set_float_rounding_mode(float_round_to_zero, &env->fp_status);
443 set_float_rounding_mode(float_round_nearest_even, &env->fp_status);
445 set_flush_to_zero((val & FPSCR_DN) != 0, &env->fp_status);
448 static void update_fpscr(uintptr_t retaddr)
450 int xcpt, cause, enable;
452 xcpt = get_float_exception_flags(&env->fp_status);
454 /* Clear the flag entries */
455 env->fpscr &= ~FPSCR_FLAG_MASK;
457 if (unlikely(xcpt)) {
458 if (xcpt & float_flag_invalid) {
459 env->fpscr |= FPSCR_FLAG_V;
461 if (xcpt & float_flag_divbyzero) {
462 env->fpscr |= FPSCR_FLAG_Z;
464 if (xcpt & float_flag_overflow) {
465 env->fpscr |= FPSCR_FLAG_O;
467 if (xcpt & float_flag_underflow) {
468 env->fpscr |= FPSCR_FLAG_U;
470 if (xcpt & float_flag_inexact) {
471 env->fpscr |= FPSCR_FLAG_I;
474 /* Accumulate in cause entries */
475 env->fpscr |= (env->fpscr & FPSCR_FLAG_MASK)
476 << (FPSCR_CAUSE_SHIFT - FPSCR_FLAG_SHIFT);
478 /* Generate an exception if enabled */
479 cause = (env->fpscr & FPSCR_CAUSE_MASK) >> FPSCR_CAUSE_SHIFT;
480 enable = (env->fpscr & FPSCR_ENABLE_MASK) >> FPSCR_ENABLE_SHIFT;
481 if (cause & enable) {
482 cpu_restore_state_from_retaddr(retaddr);
483 env->exception_index = 0x120;
489 float32 helper_fabs_FT(float32 t0)
491 return float32_abs(t0);
494 float64 helper_fabs_DT(float64 t0)
496 return float64_abs(t0);
499 float32 helper_fadd_FT(float32 t0, float32 t1)
501 set_float_exception_flags(0, &env->fp_status);
502 t0 = float32_add(t0, t1, &env->fp_status);
503 update_fpscr(GETPC());
507 float64 helper_fadd_DT(float64 t0, float64 t1)
509 set_float_exception_flags(0, &env->fp_status);
510 t0 = float64_add(t0, t1, &env->fp_status);
511 update_fpscr(GETPC());
515 void helper_fcmp_eq_FT(float32 t0, float32 t1)
519 set_float_exception_flags(0, &env->fp_status);
520 relation = float32_compare(t0, t1, &env->fp_status);
521 if (unlikely(relation == float_relation_unordered)) {
522 update_fpscr(GETPC());
523 } else if (relation == float_relation_equal) {
530 void helper_fcmp_eq_DT(float64 t0, float64 t1)
534 set_float_exception_flags(0, &env->fp_status);
535 relation = float64_compare(t0, t1, &env->fp_status);
536 if (unlikely(relation == float_relation_unordered)) {
537 update_fpscr(GETPC());
538 } else if (relation == float_relation_equal) {
545 void helper_fcmp_gt_FT(float32 t0, float32 t1)
549 set_float_exception_flags(0, &env->fp_status);
550 relation = float32_compare(t0, t1, &env->fp_status);
551 if (unlikely(relation == float_relation_unordered)) {
552 update_fpscr(GETPC());
553 } else if (relation == float_relation_greater) {
560 void helper_fcmp_gt_DT(float64 t0, float64 t1)
564 set_float_exception_flags(0, &env->fp_status);
565 relation = float64_compare(t0, t1, &env->fp_status);
566 if (unlikely(relation == float_relation_unordered)) {
567 update_fpscr(GETPC());
568 } else if (relation == float_relation_greater) {
575 float64 helper_fcnvsd_FT_DT(float32 t0)
578 set_float_exception_flags(0, &env->fp_status);
579 ret = float32_to_float64(t0, &env->fp_status);
580 update_fpscr(GETPC());
584 float32 helper_fcnvds_DT_FT(float64 t0)
587 set_float_exception_flags(0, &env->fp_status);
588 ret = float64_to_float32(t0, &env->fp_status);
589 update_fpscr(GETPC());
593 float32 helper_fdiv_FT(float32 t0, float32 t1)
595 set_float_exception_flags(0, &env->fp_status);
596 t0 = float32_div(t0, t1, &env->fp_status);
597 update_fpscr(GETPC());
601 float64 helper_fdiv_DT(float64 t0, float64 t1)
603 set_float_exception_flags(0, &env->fp_status);
604 t0 = float64_div(t0, t1, &env->fp_status);
605 update_fpscr(GETPC());
609 float32 helper_float_FT(uint32_t t0)
612 set_float_exception_flags(0, &env->fp_status);
613 ret = int32_to_float32(t0, &env->fp_status);
614 update_fpscr(GETPC());
618 float64 helper_float_DT(uint32_t t0)
621 set_float_exception_flags(0, &env->fp_status);
622 ret = int32_to_float64(t0, &env->fp_status);
623 update_fpscr(GETPC());
627 float32 helper_fmac_FT(float32 t0, float32 t1, float32 t2)
629 set_float_exception_flags(0, &env->fp_status);
630 t0 = float32_mul(t0, t1, &env->fp_status);
631 t0 = float32_add(t0, t2, &env->fp_status);
632 update_fpscr(GETPC());
636 float32 helper_fmul_FT(float32 t0, float32 t1)
638 set_float_exception_flags(0, &env->fp_status);
639 t0 = float32_mul(t0, t1, &env->fp_status);
640 update_fpscr(GETPC());
644 float64 helper_fmul_DT(float64 t0, float64 t1)
646 set_float_exception_flags(0, &env->fp_status);
647 t0 = float64_mul(t0, t1, &env->fp_status);
648 update_fpscr(GETPC());
652 float32 helper_fneg_T(float32 t0)
654 return float32_chs(t0);
657 float32 helper_fsqrt_FT(float32 t0)
659 set_float_exception_flags(0, &env->fp_status);
660 t0 = float32_sqrt(t0, &env->fp_status);
661 update_fpscr(GETPC());
665 float64 helper_fsqrt_DT(float64 t0)
667 set_float_exception_flags(0, &env->fp_status);
668 t0 = float64_sqrt(t0, &env->fp_status);
669 update_fpscr(GETPC());
673 float32 helper_fsub_FT(float32 t0, float32 t1)
675 set_float_exception_flags(0, &env->fp_status);
676 t0 = float32_sub(t0, t1, &env->fp_status);
677 update_fpscr(GETPC());
681 float64 helper_fsub_DT(float64 t0, float64 t1)
683 set_float_exception_flags(0, &env->fp_status);
684 t0 = float64_sub(t0, t1, &env->fp_status);
685 update_fpscr(GETPC());
689 uint32_t helper_ftrc_FT(float32 t0)
692 set_float_exception_flags(0, &env->fp_status);
693 ret = float32_to_int32_round_to_zero(t0, &env->fp_status);
694 update_fpscr(GETPC());
698 uint32_t helper_ftrc_DT(float64 t0)
701 set_float_exception_flags(0, &env->fp_status);
702 ret = float64_to_int32_round_to_zero(t0, &env->fp_status);
703 update_fpscr(GETPC());
707 void helper_fipr(uint32_t m, uint32_t n)
712 bank = (env->sr & FPSCR_FR) ? 16 : 0;
714 set_float_exception_flags(0, &env->fp_status);
716 for (i = 0 ; i < 4 ; i++) {
717 p = float32_mul(env->fregs[bank + m + i],
718 env->fregs[bank + n + i],
720 r = float32_add(r, p, &env->fp_status);
722 update_fpscr(GETPC());
724 env->fregs[bank + n + 3] = r;
727 void helper_ftrv(uint32_t n)
729 int bank_matrix, bank_vector;
734 bank_matrix = (env->sr & FPSCR_FR) ? 0 : 16;
735 bank_vector = (env->sr & FPSCR_FR) ? 16 : 0;
736 set_float_exception_flags(0, &env->fp_status);
737 for (i = 0 ; i < 4 ; i++) {
739 for (j = 0 ; j < 4 ; j++) {
740 p = float32_mul(env->fregs[bank_matrix + 4 * j + i],
741 env->fregs[bank_vector + j],
743 r[i] = float32_add(r[i], p, &env->fp_status);
746 update_fpscr(GETPC());
748 for (i = 0 ; i < 4 ; i++) {
749 env->fregs[bank_vector + i] = r[i];