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
26 #define MMUSUFFIX _mmu
29 #include "softmmu_template.h"
32 #include "softmmu_template.h"
35 #include "softmmu_template.h"
38 #include "softmmu_template.h"
40 void tlb_fill(target_ulong addr, int is_write, int mmu_idx, void *retaddr)
47 /* XXX: hack to restore env in all cases, even if not called from
51 ret = cpu_sh4_handle_mmu_fault(env, addr, is_write, mmu_idx, 1);
54 /* now we have a real cpu fault */
55 pc = (unsigned long) retaddr;
58 /* the PC is inside the translated code. It means that we have
59 a virtual CPU fault */
60 cpu_restore_state(tb, env, pc, NULL);
70 void helper_ldtlb(void)
72 #ifdef CONFIG_USER_ONLY
80 void helper_raise_illegal_instruction(void)
82 env->exception_index = 0x180;
86 void helper_raise_slot_illegal_instruction(void)
88 env->exception_index = 0x1a0;
92 void helper_raise_fpu_disable(void)
94 env->exception_index = 0x800;
98 void helper_raise_slot_fpu_disable(void)
100 env->exception_index = 0x820;
104 void helper_debug(void)
106 env->exception_index = EXCP_DEBUG;
110 void helper_sleep(uint32_t next_pc)
113 env->exception_index = EXCP_HLT;
118 void helper_trapa(uint32_t tra)
121 env->exception_index = 0x160;
125 void helper_movcal(uint32_t address, uint32_t value)
127 if (cpu_sh4_is_cached (env, address))
129 memory_content *r = malloc (sizeof(memory_content));
130 r->address = address;
134 *(env->movcal_backup_tail) = r;
135 env->movcal_backup_tail = &(r->next);
139 void helper_discard_movcal_backup(void)
141 memory_content *current = env->movcal_backup;
145 memory_content *next = current->next;
147 env->movcal_backup = current = next;
149 env->movcal_backup_tail = &(env->movcal_backup);
153 void helper_ocbi(uint32_t address)
155 memory_content **current = &(env->movcal_backup);
158 uint32_t a = (*current)->address;
159 if ((a & ~0x1F) == (address & ~0x1F))
161 memory_content *next = (*current)->next;
162 stl(a, (*current)->value);
166 env->movcal_backup_tail = current;
176 uint32_t helper_addc(uint32_t arg0, uint32_t arg1)
182 arg1 = tmp1 + (env->sr & 1);
192 uint32_t helper_addv(uint32_t arg0, uint32_t arg1)
194 uint32_t dest, src, ans;
196 if ((int32_t) arg1 >= 0)
200 if ((int32_t) arg0 >= 0)
206 if ((int32_t) arg1 >= 0)
211 if (src == 0 || src == 2) {
221 #define T (env->sr & SR_T)
222 #define Q (env->sr & SR_Q ? 1 : 0)
223 #define M (env->sr & SR_M ? 1 : 0)
224 #define SETT env->sr |= SR_T
225 #define CLRT env->sr &= ~SR_T
226 #define SETQ env->sr |= SR_Q
227 #define CLRQ env->sr &= ~SR_Q
228 #define SETM env->sr |= SR_M
229 #define CLRM env->sr &= ~SR_M
231 uint32_t helper_div1(uint32_t arg0, uint32_t arg1)
234 uint8_t old_q, tmp1 = 0xff;
236 //printf("div1 arg0=0x%08x arg1=0x%08x M=%d Q=%d T=%d\n", arg0, arg1, M, Q, T);
238 if ((0x80000000 & arg1) != 0)
335 //printf("Output: arg1=0x%08x M=%d Q=%d T=%d\n", arg1, M, Q, T);
339 void helper_macl(uint32_t arg0, uint32_t arg1)
343 res = ((uint64_t) env->mach << 32) | env->macl;
344 res += (int64_t) (int32_t) arg0 *(int64_t) (int32_t) arg1;
345 env->mach = (res >> 32) & 0xffffffff;
346 env->macl = res & 0xffffffff;
347 if (env->sr & SR_S) {
349 env->mach |= 0xffff0000;
351 env->mach &= 0x00007fff;
355 void helper_macw(uint32_t arg0, uint32_t arg1)
359 res = ((uint64_t) env->mach << 32) | env->macl;
360 res += (int64_t) (int16_t) arg0 *(int64_t) (int16_t) arg1;
361 env->mach = (res >> 32) & 0xffffffff;
362 env->macl = res & 0xffffffff;
363 if (env->sr & SR_S) {
364 if (res < -0x80000000) {
366 env->macl = 0x80000000;
367 } else if (res > 0x000000007fffffff) {
369 env->macl = 0x7fffffff;
374 uint32_t helper_negc(uint32_t arg)
379 arg = temp - (env->sr & SR_T);
389 uint32_t helper_subc(uint32_t arg0, uint32_t arg1)
395 arg1 = tmp1 - (env->sr & SR_T);
405 uint32_t helper_subv(uint32_t arg0, uint32_t arg1)
407 int32_t dest, src, ans;
409 if ((int32_t) arg1 >= 0)
413 if ((int32_t) arg0 >= 0)
419 if ((int32_t) arg1 >= 0)
434 static inline void set_t(void)
439 static inline void clr_t(void)
444 void helper_ld_fpscr(uint32_t val)
446 env->fpscr = val & 0x003fffff;
448 set_float_rounding_mode(float_round_to_zero, &env->fp_status);
450 set_float_rounding_mode(float_round_nearest_even, &env->fp_status);
453 uint32_t helper_fabs_FT(uint32_t t0)
457 f.f = float32_abs(f.f);
461 uint64_t helper_fabs_DT(uint64_t t0)
465 d.d = float64_abs(d.d);
469 uint32_t helper_fadd_FT(uint32_t t0, uint32_t t1)
474 f0.f = float32_add(f0.f, f1.f, &env->fp_status);
478 uint64_t helper_fadd_DT(uint64_t t0, uint64_t t1)
483 d0.d = float64_add(d0.d, d1.d, &env->fp_status);
487 void helper_fcmp_eq_FT(uint32_t t0, uint32_t t1)
493 if (float32_compare(f0.f, f1.f, &env->fp_status) == 0)
499 void helper_fcmp_eq_DT(uint64_t t0, uint64_t t1)
505 if (float64_compare(d0.d, d1.d, &env->fp_status) == 0)
511 void helper_fcmp_gt_FT(uint32_t t0, uint32_t t1)
517 if (float32_compare(f0.f, f1.f, &env->fp_status) == 1)
523 void helper_fcmp_gt_DT(uint64_t t0, uint64_t t1)
529 if (float64_compare(d0.d, d1.d, &env->fp_status) == 1)
535 uint64_t helper_fcnvsd_FT_DT(uint32_t t0)
540 d.d = float32_to_float64(f.f, &env->fp_status);
544 uint32_t helper_fcnvds_DT_FT(uint64_t t0)
549 f.f = float64_to_float32(d.d, &env->fp_status);
553 uint32_t helper_fdiv_FT(uint32_t t0, uint32_t t1)
558 f0.f = float32_div(f0.f, f1.f, &env->fp_status);
562 uint64_t helper_fdiv_DT(uint64_t t0, uint64_t t1)
567 d0.d = float64_div(d0.d, d1.d, &env->fp_status);
571 uint32_t helper_float_FT(uint32_t t0)
574 f.f = int32_to_float32(t0, &env->fp_status);
578 uint64_t helper_float_DT(uint32_t t0)
581 d.d = int32_to_float64(t0, &env->fp_status);
585 uint32_t helper_fmac_FT(uint32_t t0, uint32_t t1, uint32_t t2)
587 CPU_FloatU f0, f1, f2;
591 f0.f = float32_mul(f0.f, f1.f, &env->fp_status);
592 f0.f = float32_add(f0.f, f2.f, &env->fp_status);
596 uint32_t helper_fmul_FT(uint32_t t0, uint32_t t1)
601 f0.f = float32_mul(f0.f, f1.f, &env->fp_status);
605 uint64_t helper_fmul_DT(uint64_t t0, uint64_t t1)
610 d0.d = float64_mul(d0.d, d1.d, &env->fp_status);
614 uint32_t helper_fneg_T(uint32_t t0)
618 f.f = float32_chs(f.f);
622 uint32_t helper_fsqrt_FT(uint32_t t0)
626 f.f = float32_sqrt(f.f, &env->fp_status);
630 uint64_t helper_fsqrt_DT(uint64_t t0)
634 d.d = float64_sqrt(d.d, &env->fp_status);
638 uint32_t helper_fsub_FT(uint32_t t0, uint32_t t1)
643 f0.f = float32_sub(f0.f, f1.f, &env->fp_status);
647 uint64_t helper_fsub_DT(uint64_t t0, uint64_t t1)
652 d0.d = float64_sub(d0.d, d1.d, &env->fp_status);
656 uint32_t helper_ftrc_FT(uint32_t t0)
660 return float32_to_int32_round_to_zero(f.f, &env->fp_status);
663 uint32_t helper_ftrc_DT(uint64_t t0)
667 return float64_to_int32_round_to_zero(d.d, &env->fp_status);