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, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 #ifndef CONFIG_USER_ONLY
25 #define MMUSUFFIX _mmu
28 #include "softmmu_template.h"
31 #include "softmmu_template.h"
34 #include "softmmu_template.h"
37 #include "softmmu_template.h"
39 void tlb_fill(target_ulong addr, int is_write, int mmu_idx, void *retaddr)
46 /* XXX: hack to restore env in all cases, even if not called from
50 ret = cpu_sh4_handle_mmu_fault(env, addr, is_write, mmu_idx, 1);
53 /* now we have a real cpu fault */
54 pc = (unsigned long) retaddr;
57 /* the PC is inside the translated code. It means that we have
58 a virtual CPU fault */
59 cpu_restore_state(tb, env, pc, NULL);
69 void helper_ldtlb(void)
71 #ifdef CONFIG_USER_ONLY
79 void helper_raise_illegal_instruction(void)
81 env->exception_index = 0x180;
85 void helper_raise_slot_illegal_instruction(void)
87 env->exception_index = 0x1a0;
91 void helper_debug(void)
93 env->exception_index = EXCP_DEBUG;
97 void helper_sleep(void)
100 env->exception_index = EXCP_HLT;
104 void helper_trapa(uint32_t tra)
107 env->exception_index = 0x160;
111 uint32_t helper_addc(uint32_t arg0, uint32_t arg1)
117 arg1 = tmp1 + (env->sr & 1);
127 uint32_t helper_addv(uint32_t arg0, uint32_t arg1)
129 uint32_t dest, src, ans;
131 if ((int32_t) arg1 >= 0)
135 if ((int32_t) arg0 >= 0)
141 if ((int32_t) arg1 >= 0)
146 if (src == 0 || src == 2) {
156 #define T (env->sr & SR_T)
157 #define Q (env->sr & SR_Q ? 1 : 0)
158 #define M (env->sr & SR_M ? 1 : 0)
159 #define SETT env->sr |= SR_T
160 #define CLRT env->sr &= ~SR_T
161 #define SETQ env->sr |= SR_Q
162 #define CLRQ env->sr &= ~SR_Q
163 #define SETM env->sr |= SR_M
164 #define CLRM env->sr &= ~SR_M
166 void helper_div1_T0_T1(void)
169 uint8_t old_q, tmp1 = 0xff;
171 //printf("div1 T0=0x%08x T1=0x%08x M=%d Q=%d T=%d\n", T0, T1, M, Q, T);
173 if ((0x80000000 & T1) != 0)
270 //printf("Output: T1=0x%08x M=%d Q=%d T=%d\n", T1, M, Q, T);
273 void helper_macl(uint32_t arg0, uint32_t arg1)
277 res = ((uint64_t) env->mach << 32) | env->macl;
278 res += (int64_t) (int32_t) arg0 *(int64_t) (int32_t) arg1;
279 env->mach = (res >> 32) & 0xffffffff;
280 env->macl = res & 0xffffffff;
281 if (env->sr & SR_S) {
283 env->mach |= 0xffff0000;
285 env->mach &= 0x00007fff;
289 void helper_macw(uint32_t arg0, uint32_t arg1)
293 res = ((uint64_t) env->mach << 32) | env->macl;
294 res += (int64_t) (int16_t) arg0 *(int64_t) (int16_t) arg1;
295 env->mach = (res >> 32) & 0xffffffff;
296 env->macl = res & 0xffffffff;
297 if (env->sr & SR_S) {
298 if (res < -0x80000000) {
300 env->macl = 0x80000000;
301 } else if (res > 0x000000007fffffff) {
303 env->macl = 0x7fffffff;
308 uint32_t helper_negc(uint32_t arg)
313 arg = temp - (env->sr & SR_T);
323 uint32_t helper_subc(uint32_t arg0, uint32_t arg1)
329 arg1 = tmp1 - (env->sr & SR_T);
339 uint32_t helper_subv(uint32_t arg0, uint32_t arg1)
341 int32_t dest, src, ans;
343 if ((int32_t) arg1 >= 0)
347 if ((int32_t) arg0 >= 0)
353 if ((int32_t) arg1 >= 0)
368 void helper_rotcl(uint32_t * addr)
372 new = (*addr << 1) | (env->sr & SR_T);
373 if (*addr & 0x80000000)
380 void helper_rotcr(uint32_t * addr)
384 new = (*addr >> 1) | ((env->sr & SR_T) ? 0x80000000 : 0);
392 void helper_ld_fpscr(uint32_t val)
394 env->fpscr = val & 0x003fffff;
396 set_float_rounding_mode(float_round_to_zero, &env->fp_status);
398 set_float_rounding_mode(float_round_nearest_even, &env->fp_status);