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 "exec/helper-proto.h"
23 #include "exec/cpu_ldst.h"
25 #ifndef CONFIG_USER_ONLY
27 void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx,
32 ret = superh_cpu_handle_mmu_fault(cs, addr, is_write, mmu_idx);
34 /* now we have a real cpu fault */
36 cpu_restore_state(cs, retaddr);
44 void helper_ldtlb(CPUSH4State *env)
46 #ifdef CONFIG_USER_ONLY
47 SuperHCPU *cpu = sh_env_get_cpu(env);
50 cpu_abort(CPU(cpu), "Unhandled ldtlb");
56 static inline void QEMU_NORETURN raise_exception(CPUSH4State *env, int index,
59 CPUState *cs = CPU(sh_env_get_cpu(env));
61 cs->exception_index = index;
63 cpu_restore_state(cs, retaddr);
68 void helper_raise_illegal_instruction(CPUSH4State *env)
70 raise_exception(env, 0x180, 0);
73 void helper_raise_slot_illegal_instruction(CPUSH4State *env)
75 raise_exception(env, 0x1a0, 0);
78 void helper_raise_fpu_disable(CPUSH4State *env)
80 raise_exception(env, 0x800, 0);
83 void helper_raise_slot_fpu_disable(CPUSH4State *env)
85 raise_exception(env, 0x820, 0);
88 void helper_debug(CPUSH4State *env)
90 raise_exception(env, EXCP_DEBUG, 0);
93 void helper_sleep(CPUSH4State *env)
95 CPUState *cs = CPU(sh_env_get_cpu(env));
99 raise_exception(env, EXCP_HLT, 0);
102 void helper_trapa(CPUSH4State *env, uint32_t tra)
105 raise_exception(env, 0x160, 0);
108 void helper_movcal(CPUSH4State *env, uint32_t address, uint32_t value)
110 if (cpu_sh4_is_cached (env, address))
112 memory_content *r = malloc (sizeof(memory_content));
113 r->address = address;
117 *(env->movcal_backup_tail) = r;
118 env->movcal_backup_tail = &(r->next);
122 void helper_discard_movcal_backup(CPUSH4State *env)
124 memory_content *current = env->movcal_backup;
128 memory_content *next = current->next;
130 env->movcal_backup = current = next;
132 env->movcal_backup_tail = &(env->movcal_backup);
136 void helper_ocbi(CPUSH4State *env, uint32_t address)
138 memory_content **current = &(env->movcal_backup);
141 uint32_t a = (*current)->address;
142 if ((a & ~0x1F) == (address & ~0x1F))
144 memory_content *next = (*current)->next;
145 cpu_stl_data(env, a, (*current)->value);
149 env->movcal_backup_tail = current;
159 #define T (env->sr & SR_T)
160 #define Q (env->sr & SR_Q ? 1 : 0)
161 #define M (env->sr & SR_M ? 1 : 0)
162 #define SETT env->sr |= SR_T
163 #define CLRT env->sr &= ~SR_T
164 #define SETQ env->sr |= SR_Q
165 #define CLRQ env->sr &= ~SR_Q
166 #define SETM env->sr |= SR_M
167 #define CLRM env->sr &= ~SR_M
169 uint32_t helper_div1(CPUSH4State *env, uint32_t arg0, uint32_t arg1)
172 uint8_t old_q, tmp1 = 0xff;
174 //printf("div1 arg0=0x%08x arg1=0x%08x M=%d Q=%d T=%d\n", arg0, arg1, M, Q, T);
176 if ((0x80000000 & arg1) != 0)
273 //printf("Output: arg1=0x%08x M=%d Q=%d T=%d\n", arg1, M, Q, T);
277 void helper_macl(CPUSH4State *env, uint32_t arg0, uint32_t arg1)
281 res = ((uint64_t) env->mach << 32) | env->macl;
282 res += (int64_t) (int32_t) arg0 *(int64_t) (int32_t) arg1;
283 env->mach = (res >> 32) & 0xffffffff;
284 env->macl = res & 0xffffffff;
285 if (env->sr & SR_S) {
287 env->mach |= 0xffff0000;
289 env->mach &= 0x00007fff;
293 void helper_macw(CPUSH4State *env, uint32_t arg0, uint32_t arg1)
297 res = ((uint64_t) env->mach << 32) | env->macl;
298 res += (int64_t) (int16_t) arg0 *(int64_t) (int16_t) arg1;
299 env->mach = (res >> 32) & 0xffffffff;
300 env->macl = res & 0xffffffff;
301 if (env->sr & SR_S) {
302 if (res < -0x80000000) {
304 env->macl = 0x80000000;
305 } else if (res > 0x000000007fffffff) {
307 env->macl = 0x7fffffff;
312 static inline void set_t(CPUSH4State *env)
317 static inline void clr_t(CPUSH4State *env)
322 void helper_ld_fpscr(CPUSH4State *env, uint32_t val)
324 env->fpscr = val & FPSCR_MASK;
325 if ((val & FPSCR_RM_MASK) == FPSCR_RM_ZERO) {
326 set_float_rounding_mode(float_round_to_zero, &env->fp_status);
328 set_float_rounding_mode(float_round_nearest_even, &env->fp_status);
330 set_flush_to_zero((val & FPSCR_DN) != 0, &env->fp_status);
333 static void update_fpscr(CPUSH4State *env, uintptr_t retaddr)
335 int xcpt, cause, enable;
337 xcpt = get_float_exception_flags(&env->fp_status);
339 /* Clear the flag entries */
340 env->fpscr &= ~FPSCR_FLAG_MASK;
342 if (unlikely(xcpt)) {
343 if (xcpt & float_flag_invalid) {
344 env->fpscr |= FPSCR_FLAG_V;
346 if (xcpt & float_flag_divbyzero) {
347 env->fpscr |= FPSCR_FLAG_Z;
349 if (xcpt & float_flag_overflow) {
350 env->fpscr |= FPSCR_FLAG_O;
352 if (xcpt & float_flag_underflow) {
353 env->fpscr |= FPSCR_FLAG_U;
355 if (xcpt & float_flag_inexact) {
356 env->fpscr |= FPSCR_FLAG_I;
359 /* Accumulate in cause entries */
360 env->fpscr |= (env->fpscr & FPSCR_FLAG_MASK)
361 << (FPSCR_CAUSE_SHIFT - FPSCR_FLAG_SHIFT);
363 /* Generate an exception if enabled */
364 cause = (env->fpscr & FPSCR_CAUSE_MASK) >> FPSCR_CAUSE_SHIFT;
365 enable = (env->fpscr & FPSCR_ENABLE_MASK) >> FPSCR_ENABLE_SHIFT;
366 if (cause & enable) {
367 raise_exception(env, 0x120, retaddr);
372 float32 helper_fabs_FT(float32 t0)
374 return float32_abs(t0);
377 float64 helper_fabs_DT(float64 t0)
379 return float64_abs(t0);
382 float32 helper_fadd_FT(CPUSH4State *env, float32 t0, float32 t1)
384 set_float_exception_flags(0, &env->fp_status);
385 t0 = float32_add(t0, t1, &env->fp_status);
386 update_fpscr(env, GETPC());
390 float64 helper_fadd_DT(CPUSH4State *env, float64 t0, float64 t1)
392 set_float_exception_flags(0, &env->fp_status);
393 t0 = float64_add(t0, t1, &env->fp_status);
394 update_fpscr(env, GETPC());
398 void helper_fcmp_eq_FT(CPUSH4State *env, float32 t0, float32 t1)
402 set_float_exception_flags(0, &env->fp_status);
403 relation = float32_compare(t0, t1, &env->fp_status);
404 if (unlikely(relation == float_relation_unordered)) {
405 update_fpscr(env, GETPC());
406 } else if (relation == float_relation_equal) {
413 void helper_fcmp_eq_DT(CPUSH4State *env, float64 t0, float64 t1)
417 set_float_exception_flags(0, &env->fp_status);
418 relation = float64_compare(t0, t1, &env->fp_status);
419 if (unlikely(relation == float_relation_unordered)) {
420 update_fpscr(env, GETPC());
421 } else if (relation == float_relation_equal) {
428 void helper_fcmp_gt_FT(CPUSH4State *env, float32 t0, float32 t1)
432 set_float_exception_flags(0, &env->fp_status);
433 relation = float32_compare(t0, t1, &env->fp_status);
434 if (unlikely(relation == float_relation_unordered)) {
435 update_fpscr(env, GETPC());
436 } else if (relation == float_relation_greater) {
443 void helper_fcmp_gt_DT(CPUSH4State *env, float64 t0, float64 t1)
447 set_float_exception_flags(0, &env->fp_status);
448 relation = float64_compare(t0, t1, &env->fp_status);
449 if (unlikely(relation == float_relation_unordered)) {
450 update_fpscr(env, GETPC());
451 } else if (relation == float_relation_greater) {
458 float64 helper_fcnvsd_FT_DT(CPUSH4State *env, float32 t0)
461 set_float_exception_flags(0, &env->fp_status);
462 ret = float32_to_float64(t0, &env->fp_status);
463 update_fpscr(env, GETPC());
467 float32 helper_fcnvds_DT_FT(CPUSH4State *env, float64 t0)
470 set_float_exception_flags(0, &env->fp_status);
471 ret = float64_to_float32(t0, &env->fp_status);
472 update_fpscr(env, GETPC());
476 float32 helper_fdiv_FT(CPUSH4State *env, float32 t0, float32 t1)
478 set_float_exception_flags(0, &env->fp_status);
479 t0 = float32_div(t0, t1, &env->fp_status);
480 update_fpscr(env, GETPC());
484 float64 helper_fdiv_DT(CPUSH4State *env, float64 t0, float64 t1)
486 set_float_exception_flags(0, &env->fp_status);
487 t0 = float64_div(t0, t1, &env->fp_status);
488 update_fpscr(env, GETPC());
492 float32 helper_float_FT(CPUSH4State *env, uint32_t t0)
495 set_float_exception_flags(0, &env->fp_status);
496 ret = int32_to_float32(t0, &env->fp_status);
497 update_fpscr(env, GETPC());
501 float64 helper_float_DT(CPUSH4State *env, uint32_t t0)
504 set_float_exception_flags(0, &env->fp_status);
505 ret = int32_to_float64(t0, &env->fp_status);
506 update_fpscr(env, GETPC());
510 float32 helper_fmac_FT(CPUSH4State *env, float32 t0, float32 t1, float32 t2)
512 set_float_exception_flags(0, &env->fp_status);
513 t0 = float32_muladd(t0, t1, t2, 0, &env->fp_status);
514 update_fpscr(env, GETPC());
518 float32 helper_fmul_FT(CPUSH4State *env, float32 t0, float32 t1)
520 set_float_exception_flags(0, &env->fp_status);
521 t0 = float32_mul(t0, t1, &env->fp_status);
522 update_fpscr(env, GETPC());
526 float64 helper_fmul_DT(CPUSH4State *env, float64 t0, float64 t1)
528 set_float_exception_flags(0, &env->fp_status);
529 t0 = float64_mul(t0, t1, &env->fp_status);
530 update_fpscr(env, GETPC());
534 float32 helper_fneg_T(float32 t0)
536 return float32_chs(t0);
539 float32 helper_fsqrt_FT(CPUSH4State *env, float32 t0)
541 set_float_exception_flags(0, &env->fp_status);
542 t0 = float32_sqrt(t0, &env->fp_status);
543 update_fpscr(env, GETPC());
547 float64 helper_fsqrt_DT(CPUSH4State *env, float64 t0)
549 set_float_exception_flags(0, &env->fp_status);
550 t0 = float64_sqrt(t0, &env->fp_status);
551 update_fpscr(env, GETPC());
555 float32 helper_fsub_FT(CPUSH4State *env, float32 t0, float32 t1)
557 set_float_exception_flags(0, &env->fp_status);
558 t0 = float32_sub(t0, t1, &env->fp_status);
559 update_fpscr(env, GETPC());
563 float64 helper_fsub_DT(CPUSH4State *env, float64 t0, float64 t1)
565 set_float_exception_flags(0, &env->fp_status);
566 t0 = float64_sub(t0, t1, &env->fp_status);
567 update_fpscr(env, GETPC());
571 uint32_t helper_ftrc_FT(CPUSH4State *env, float32 t0)
574 set_float_exception_flags(0, &env->fp_status);
575 ret = float32_to_int32_round_to_zero(t0, &env->fp_status);
576 update_fpscr(env, GETPC());
580 uint32_t helper_ftrc_DT(CPUSH4State *env, float64 t0)
583 set_float_exception_flags(0, &env->fp_status);
584 ret = float64_to_int32_round_to_zero(t0, &env->fp_status);
585 update_fpscr(env, GETPC());
589 void helper_fipr(CPUSH4State *env, uint32_t m, uint32_t n)
594 bank = (env->sr & FPSCR_FR) ? 16 : 0;
596 set_float_exception_flags(0, &env->fp_status);
598 for (i = 0 ; i < 4 ; i++) {
599 p = float32_mul(env->fregs[bank + m + i],
600 env->fregs[bank + n + i],
602 r = float32_add(r, p, &env->fp_status);
604 update_fpscr(env, GETPC());
606 env->fregs[bank + n + 3] = r;
609 void helper_ftrv(CPUSH4State *env, uint32_t n)
611 int bank_matrix, bank_vector;
616 bank_matrix = (env->sr & FPSCR_FR) ? 0 : 16;
617 bank_vector = (env->sr & FPSCR_FR) ? 16 : 0;
618 set_float_exception_flags(0, &env->fp_status);
619 for (i = 0 ; i < 4 ; i++) {
621 for (j = 0 ; j < 4 ; j++) {
622 p = float32_mul(env->fregs[bank_matrix + 4 * j + i],
623 env->fregs[bank_vector + j],
625 r[i] = float32_add(r[i], p, &env->fp_status);
628 update_fpscr(env, GETPC());
630 for (i = 0 ; i < 4 ; i++) {
631 env->fregs[bank_vector + i] = r[i];