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/>.
24 #ifndef CONFIG_USER_ONLY
25 #include "exec/softmmu_exec.h"
27 #define MMUSUFFIX _mmu
30 #include "exec/softmmu_template.h"
33 #include "exec/softmmu_template.h"
36 #include "exec/softmmu_template.h"
39 #include "exec/softmmu_template.h"
41 void tlb_fill(CPUSH4State *env, target_ulong addr, int is_write, int mmu_idx,
46 ret = cpu_sh4_handle_mmu_fault(env, addr, is_write, mmu_idx);
48 /* now we have a real cpu fault */
50 cpu_restore_state(env, retaddr);
58 void helper_ldtlb(CPUSH4State *env)
60 #ifdef CONFIG_USER_ONLY
62 cpu_abort(env, "Unhandled ldtlb");
68 static inline void QEMU_NORETURN raise_exception(CPUSH4State *env, int index,
71 env->exception_index = index;
73 cpu_restore_state(env, retaddr);
78 void helper_raise_illegal_instruction(CPUSH4State *env)
80 raise_exception(env, 0x180, 0);
83 void helper_raise_slot_illegal_instruction(CPUSH4State *env)
85 raise_exception(env, 0x1a0, 0);
88 void helper_raise_fpu_disable(CPUSH4State *env)
90 raise_exception(env, 0x800, 0);
93 void helper_raise_slot_fpu_disable(CPUSH4State *env)
95 raise_exception(env, 0x820, 0);
98 void helper_debug(CPUSH4State *env)
100 raise_exception(env, EXCP_DEBUG, 0);
103 void helper_sleep(CPUSH4State *env)
105 CPUState *cs = CPU(sh_env_get_cpu(env));
109 raise_exception(env, EXCP_HLT, 0);
112 void helper_trapa(CPUSH4State *env, uint32_t tra)
115 raise_exception(env, 0x160, 0);
118 void helper_movcal(CPUSH4State *env, uint32_t address, uint32_t value)
120 if (cpu_sh4_is_cached (env, address))
122 memory_content *r = malloc (sizeof(memory_content));
123 r->address = address;
127 *(env->movcal_backup_tail) = r;
128 env->movcal_backup_tail = &(r->next);
132 void helper_discard_movcal_backup(CPUSH4State *env)
134 memory_content *current = env->movcal_backup;
138 memory_content *next = current->next;
140 env->movcal_backup = current = next;
142 env->movcal_backup_tail = &(env->movcal_backup);
146 void helper_ocbi(CPUSH4State *env, uint32_t address)
148 memory_content **current = &(env->movcal_backup);
151 uint32_t a = (*current)->address;
152 if ((a & ~0x1F) == (address & ~0x1F))
154 memory_content *next = (*current)->next;
155 cpu_stl_data(env, a, (*current)->value);
159 env->movcal_backup_tail = current;
169 #define T (env->sr & SR_T)
170 #define Q (env->sr & SR_Q ? 1 : 0)
171 #define M (env->sr & SR_M ? 1 : 0)
172 #define SETT env->sr |= SR_T
173 #define CLRT env->sr &= ~SR_T
174 #define SETQ env->sr |= SR_Q
175 #define CLRQ env->sr &= ~SR_Q
176 #define SETM env->sr |= SR_M
177 #define CLRM env->sr &= ~SR_M
179 uint32_t helper_div1(CPUSH4State *env, uint32_t arg0, uint32_t arg1)
182 uint8_t old_q, tmp1 = 0xff;
184 //printf("div1 arg0=0x%08x arg1=0x%08x M=%d Q=%d T=%d\n", arg0, arg1, M, Q, T);
186 if ((0x80000000 & arg1) != 0)
283 //printf("Output: arg1=0x%08x M=%d Q=%d T=%d\n", arg1, M, Q, T);
287 void helper_macl(CPUSH4State *env, uint32_t arg0, uint32_t arg1)
291 res = ((uint64_t) env->mach << 32) | env->macl;
292 res += (int64_t) (int32_t) arg0 *(int64_t) (int32_t) arg1;
293 env->mach = (res >> 32) & 0xffffffff;
294 env->macl = res & 0xffffffff;
295 if (env->sr & SR_S) {
297 env->mach |= 0xffff0000;
299 env->mach &= 0x00007fff;
303 void helper_macw(CPUSH4State *env, uint32_t arg0, uint32_t arg1)
307 res = ((uint64_t) env->mach << 32) | env->macl;
308 res += (int64_t) (int16_t) arg0 *(int64_t) (int16_t) arg1;
309 env->mach = (res >> 32) & 0xffffffff;
310 env->macl = res & 0xffffffff;
311 if (env->sr & SR_S) {
312 if (res < -0x80000000) {
314 env->macl = 0x80000000;
315 } else if (res > 0x000000007fffffff) {
317 env->macl = 0x7fffffff;
322 static inline void set_t(CPUSH4State *env)
327 static inline void clr_t(CPUSH4State *env)
332 void helper_ld_fpscr(CPUSH4State *env, uint32_t val)
334 env->fpscr = val & FPSCR_MASK;
335 if ((val & FPSCR_RM_MASK) == FPSCR_RM_ZERO) {
336 set_float_rounding_mode(float_round_to_zero, &env->fp_status);
338 set_float_rounding_mode(float_round_nearest_even, &env->fp_status);
340 set_flush_to_zero((val & FPSCR_DN) != 0, &env->fp_status);
343 static void update_fpscr(CPUSH4State *env, uintptr_t retaddr)
345 int xcpt, cause, enable;
347 xcpt = get_float_exception_flags(&env->fp_status);
349 /* Clear the flag entries */
350 env->fpscr &= ~FPSCR_FLAG_MASK;
352 if (unlikely(xcpt)) {
353 if (xcpt & float_flag_invalid) {
354 env->fpscr |= FPSCR_FLAG_V;
356 if (xcpt & float_flag_divbyzero) {
357 env->fpscr |= FPSCR_FLAG_Z;
359 if (xcpt & float_flag_overflow) {
360 env->fpscr |= FPSCR_FLAG_O;
362 if (xcpt & float_flag_underflow) {
363 env->fpscr |= FPSCR_FLAG_U;
365 if (xcpt & float_flag_inexact) {
366 env->fpscr |= FPSCR_FLAG_I;
369 /* Accumulate in cause entries */
370 env->fpscr |= (env->fpscr & FPSCR_FLAG_MASK)
371 << (FPSCR_CAUSE_SHIFT - FPSCR_FLAG_SHIFT);
373 /* Generate an exception if enabled */
374 cause = (env->fpscr & FPSCR_CAUSE_MASK) >> FPSCR_CAUSE_SHIFT;
375 enable = (env->fpscr & FPSCR_ENABLE_MASK) >> FPSCR_ENABLE_SHIFT;
376 if (cause & enable) {
377 raise_exception(env, 0x120, retaddr);
382 float32 helper_fabs_FT(float32 t0)
384 return float32_abs(t0);
387 float64 helper_fabs_DT(float64 t0)
389 return float64_abs(t0);
392 float32 helper_fadd_FT(CPUSH4State *env, float32 t0, float32 t1)
394 set_float_exception_flags(0, &env->fp_status);
395 t0 = float32_add(t0, t1, &env->fp_status);
396 update_fpscr(env, GETPC());
400 float64 helper_fadd_DT(CPUSH4State *env, float64 t0, float64 t1)
402 set_float_exception_flags(0, &env->fp_status);
403 t0 = float64_add(t0, t1, &env->fp_status);
404 update_fpscr(env, GETPC());
408 void helper_fcmp_eq_FT(CPUSH4State *env, float32 t0, float32 t1)
412 set_float_exception_flags(0, &env->fp_status);
413 relation = float32_compare(t0, t1, &env->fp_status);
414 if (unlikely(relation == float_relation_unordered)) {
415 update_fpscr(env, GETPC());
416 } else if (relation == float_relation_equal) {
423 void helper_fcmp_eq_DT(CPUSH4State *env, float64 t0, float64 t1)
427 set_float_exception_flags(0, &env->fp_status);
428 relation = float64_compare(t0, t1, &env->fp_status);
429 if (unlikely(relation == float_relation_unordered)) {
430 update_fpscr(env, GETPC());
431 } else if (relation == float_relation_equal) {
438 void helper_fcmp_gt_FT(CPUSH4State *env, float32 t0, float32 t1)
442 set_float_exception_flags(0, &env->fp_status);
443 relation = float32_compare(t0, t1, &env->fp_status);
444 if (unlikely(relation == float_relation_unordered)) {
445 update_fpscr(env, GETPC());
446 } else if (relation == float_relation_greater) {
453 void helper_fcmp_gt_DT(CPUSH4State *env, float64 t0, float64 t1)
457 set_float_exception_flags(0, &env->fp_status);
458 relation = float64_compare(t0, t1, &env->fp_status);
459 if (unlikely(relation == float_relation_unordered)) {
460 update_fpscr(env, GETPC());
461 } else if (relation == float_relation_greater) {
468 float64 helper_fcnvsd_FT_DT(CPUSH4State *env, float32 t0)
471 set_float_exception_flags(0, &env->fp_status);
472 ret = float32_to_float64(t0, &env->fp_status);
473 update_fpscr(env, GETPC());
477 float32 helper_fcnvds_DT_FT(CPUSH4State *env, float64 t0)
480 set_float_exception_flags(0, &env->fp_status);
481 ret = float64_to_float32(t0, &env->fp_status);
482 update_fpscr(env, GETPC());
486 float32 helper_fdiv_FT(CPUSH4State *env, float32 t0, float32 t1)
488 set_float_exception_flags(0, &env->fp_status);
489 t0 = float32_div(t0, t1, &env->fp_status);
490 update_fpscr(env, GETPC());
494 float64 helper_fdiv_DT(CPUSH4State *env, float64 t0, float64 t1)
496 set_float_exception_flags(0, &env->fp_status);
497 t0 = float64_div(t0, t1, &env->fp_status);
498 update_fpscr(env, GETPC());
502 float32 helper_float_FT(CPUSH4State *env, uint32_t t0)
505 set_float_exception_flags(0, &env->fp_status);
506 ret = int32_to_float32(t0, &env->fp_status);
507 update_fpscr(env, GETPC());
511 float64 helper_float_DT(CPUSH4State *env, uint32_t t0)
514 set_float_exception_flags(0, &env->fp_status);
515 ret = int32_to_float64(t0, &env->fp_status);
516 update_fpscr(env, GETPC());
520 float32 helper_fmac_FT(CPUSH4State *env, float32 t0, float32 t1, float32 t2)
522 set_float_exception_flags(0, &env->fp_status);
523 t0 = float32_muladd(t0, t1, t2, 0, &env->fp_status);
524 update_fpscr(env, GETPC());
528 float32 helper_fmul_FT(CPUSH4State *env, float32 t0, float32 t1)
530 set_float_exception_flags(0, &env->fp_status);
531 t0 = float32_mul(t0, t1, &env->fp_status);
532 update_fpscr(env, GETPC());
536 float64 helper_fmul_DT(CPUSH4State *env, float64 t0, float64 t1)
538 set_float_exception_flags(0, &env->fp_status);
539 t0 = float64_mul(t0, t1, &env->fp_status);
540 update_fpscr(env, GETPC());
544 float32 helper_fneg_T(float32 t0)
546 return float32_chs(t0);
549 float32 helper_fsqrt_FT(CPUSH4State *env, float32 t0)
551 set_float_exception_flags(0, &env->fp_status);
552 t0 = float32_sqrt(t0, &env->fp_status);
553 update_fpscr(env, GETPC());
557 float64 helper_fsqrt_DT(CPUSH4State *env, float64 t0)
559 set_float_exception_flags(0, &env->fp_status);
560 t0 = float64_sqrt(t0, &env->fp_status);
561 update_fpscr(env, GETPC());
565 float32 helper_fsub_FT(CPUSH4State *env, float32 t0, float32 t1)
567 set_float_exception_flags(0, &env->fp_status);
568 t0 = float32_sub(t0, t1, &env->fp_status);
569 update_fpscr(env, GETPC());
573 float64 helper_fsub_DT(CPUSH4State *env, float64 t0, float64 t1)
575 set_float_exception_flags(0, &env->fp_status);
576 t0 = float64_sub(t0, t1, &env->fp_status);
577 update_fpscr(env, GETPC());
581 uint32_t helper_ftrc_FT(CPUSH4State *env, float32 t0)
584 set_float_exception_flags(0, &env->fp_status);
585 ret = float32_to_int32_round_to_zero(t0, &env->fp_status);
586 update_fpscr(env, GETPC());
590 uint32_t helper_ftrc_DT(CPUSH4State *env, float64 t0)
593 set_float_exception_flags(0, &env->fp_status);
594 ret = float64_to_int32_round_to_zero(t0, &env->fp_status);
595 update_fpscr(env, GETPC());
599 void helper_fipr(CPUSH4State *env, uint32_t m, uint32_t n)
604 bank = (env->sr & FPSCR_FR) ? 16 : 0;
606 set_float_exception_flags(0, &env->fp_status);
608 for (i = 0 ; i < 4 ; i++) {
609 p = float32_mul(env->fregs[bank + m + i],
610 env->fregs[bank + n + i],
612 r = float32_add(r, p, &env->fp_status);
614 update_fpscr(env, GETPC());
616 env->fregs[bank + n + 3] = r;
619 void helper_ftrv(CPUSH4State *env, uint32_t n)
621 int bank_matrix, bank_vector;
626 bank_matrix = (env->sr & FPSCR_FR) ? 0 : 16;
627 bank_vector = (env->sr & FPSCR_FR) ? 16 : 0;
628 set_float_exception_flags(0, &env->fp_status);
629 for (i = 0 ; i < 4 ; i++) {
631 for (j = 0 ; j < 4 ; j++) {
632 p = float32_mul(env->fregs[bank_matrix + 4 * j + i],
633 env->fregs[bank_vector + j],
635 r[i] = float32_add(r[i], p, &env->fp_status);
638 update_fpscr(env, GETPC());
640 for (i = 0 ; i < 4 ; i++) {
641 env->fregs[bank_vector + i] = r[i];