diff options
Diffstat (limited to 'qemu/target-sh4/op_helper.c')
| -rw-r--r-- | qemu/target-sh4/op_helper.c | 496 |
1 files changed, 0 insertions, 496 deletions
diff --git a/qemu/target-sh4/op_helper.c b/qemu/target-sh4/op_helper.c deleted file mode 100644 index 368e687d6..000000000 --- a/qemu/target-sh4/op_helper.c +++ /dev/null @@ -1,496 +0,0 @@ -/* - * SH4 emulation - * - * Copyright (c) 2005 Samuel Tardieu - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, see <http://www.gnu.org/licenses/>. - */ -#include "qemu/osdep.h" -#include "cpu.h" -#include "exec/helper-proto.h" -#include "exec/cpu_ldst.h" - -#ifndef CONFIG_USER_ONLY - -void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx, - uintptr_t retaddr) -{ - int ret; - - ret = superh_cpu_handle_mmu_fault(cs, addr, is_write, mmu_idx); - if (ret) { - /* now we have a real cpu fault */ - if (retaddr) { - cpu_restore_state(cs, retaddr); - } - cpu_loop_exit(cs); - } -} - -#endif - -void helper_ldtlb(CPUSH4State *env) -{ -#ifdef CONFIG_USER_ONLY - SuperHCPU *cpu = sh_env_get_cpu(env); - - /* XXXXX */ - cpu_abort(CPU(cpu), "Unhandled ldtlb"); -#else - cpu_load_tlb(env); -#endif -} - -static inline void QEMU_NORETURN raise_exception(CPUSH4State *env, int index, - uintptr_t retaddr) -{ - CPUState *cs = CPU(sh_env_get_cpu(env)); - - cs->exception_index = index; - if (retaddr) { - cpu_restore_state(cs, retaddr); - } - cpu_loop_exit(cs); -} - -void helper_raise_illegal_instruction(CPUSH4State *env) -{ - raise_exception(env, 0x180, 0); -} - -void helper_raise_slot_illegal_instruction(CPUSH4State *env) -{ - raise_exception(env, 0x1a0, 0); -} - -void helper_raise_fpu_disable(CPUSH4State *env) -{ - raise_exception(env, 0x800, 0); -} - -void helper_raise_slot_fpu_disable(CPUSH4State *env) -{ - raise_exception(env, 0x820, 0); -} - -void helper_debug(CPUSH4State *env) -{ - raise_exception(env, EXCP_DEBUG, 0); -} - -void helper_sleep(CPUSH4State *env) -{ - CPUState *cs = CPU(sh_env_get_cpu(env)); - - cs->halted = 1; - env->in_sleep = 1; - raise_exception(env, EXCP_HLT, 0); -} - -void helper_trapa(CPUSH4State *env, uint32_t tra) -{ - env->tra = tra << 2; - raise_exception(env, 0x160, 0); -} - -void helper_movcal(CPUSH4State *env, uint32_t address, uint32_t value) -{ - if (cpu_sh4_is_cached (env, address)) - { - memory_content *r = malloc (sizeof(memory_content)); - r->address = address; - r->value = value; - r->next = NULL; - - *(env->movcal_backup_tail) = r; - env->movcal_backup_tail = &(r->next); - } -} - -void helper_discard_movcal_backup(CPUSH4State *env) -{ - memory_content *current = env->movcal_backup; - - while(current) - { - memory_content *next = current->next; - free (current); - env->movcal_backup = current = next; - if (current == NULL) - env->movcal_backup_tail = &(env->movcal_backup); - } -} - -void helper_ocbi(CPUSH4State *env, uint32_t address) -{ - memory_content **current = &(env->movcal_backup); - while (*current) - { - uint32_t a = (*current)->address; - if ((a & ~0x1F) == (address & ~0x1F)) - { - memory_content *next = (*current)->next; - cpu_stl_data(env, a, (*current)->value); - - if (next == NULL) - { - env->movcal_backup_tail = current; - } - - free (*current); - *current = next; - break; - } - } -} - -void helper_macl(CPUSH4State *env, uint32_t arg0, uint32_t arg1) -{ - int64_t res; - - res = ((uint64_t) env->mach << 32) | env->macl; - res += (int64_t) (int32_t) arg0 *(int64_t) (int32_t) arg1; - env->mach = (res >> 32) & 0xffffffff; - env->macl = res & 0xffffffff; - if (env->sr & (1u << SR_S)) { - if (res < 0) - env->mach |= 0xffff0000; - else - env->mach &= 0x00007fff; - } -} - -void helper_macw(CPUSH4State *env, uint32_t arg0, uint32_t arg1) -{ - int64_t res; - - res = ((uint64_t) env->mach << 32) | env->macl; - res += (int64_t) (int16_t) arg0 *(int64_t) (int16_t) arg1; - env->mach = (res >> 32) & 0xffffffff; - env->macl = res & 0xffffffff; - if (env->sr & (1u << SR_S)) { - if (res < -0x80000000) { - env->mach = 1; - env->macl = 0x80000000; - } else if (res > 0x000000007fffffff) { - env->mach = 1; - env->macl = 0x7fffffff; - } - } -} - -void helper_ld_fpscr(CPUSH4State *env, uint32_t val) -{ - env->fpscr = val & FPSCR_MASK; - if ((val & FPSCR_RM_MASK) == FPSCR_RM_ZERO) { - set_float_rounding_mode(float_round_to_zero, &env->fp_status); - } else { - set_float_rounding_mode(float_round_nearest_even, &env->fp_status); - } - set_flush_to_zero((val & FPSCR_DN) != 0, &env->fp_status); -} - -static void update_fpscr(CPUSH4State *env, uintptr_t retaddr) -{ - int xcpt, cause, enable; - - xcpt = get_float_exception_flags(&env->fp_status); - - /* Clear the flag entries */ - env->fpscr &= ~FPSCR_FLAG_MASK; - - if (unlikely(xcpt)) { - if (xcpt & float_flag_invalid) { - env->fpscr |= FPSCR_FLAG_V; - } - if (xcpt & float_flag_divbyzero) { - env->fpscr |= FPSCR_FLAG_Z; - } - if (xcpt & float_flag_overflow) { - env->fpscr |= FPSCR_FLAG_O; - } - if (xcpt & float_flag_underflow) { - env->fpscr |= FPSCR_FLAG_U; - } - if (xcpt & float_flag_inexact) { - env->fpscr |= FPSCR_FLAG_I; - } - - /* Accumulate in cause entries */ - env->fpscr |= (env->fpscr & FPSCR_FLAG_MASK) - << (FPSCR_CAUSE_SHIFT - FPSCR_FLAG_SHIFT); - - /* Generate an exception if enabled */ - cause = (env->fpscr & FPSCR_CAUSE_MASK) >> FPSCR_CAUSE_SHIFT; - enable = (env->fpscr & FPSCR_ENABLE_MASK) >> FPSCR_ENABLE_SHIFT; - if (cause & enable) { - raise_exception(env, 0x120, retaddr); - } - } -} - -float32 helper_fabs_FT(float32 t0) -{ - return float32_abs(t0); -} - -float64 helper_fabs_DT(float64 t0) -{ - return float64_abs(t0); -} - -float32 helper_fadd_FT(CPUSH4State *env, float32 t0, float32 t1) -{ - set_float_exception_flags(0, &env->fp_status); - t0 = float32_add(t0, t1, &env->fp_status); - update_fpscr(env, GETPC()); - return t0; -} - -float64 helper_fadd_DT(CPUSH4State *env, float64 t0, float64 t1) -{ - set_float_exception_flags(0, &env->fp_status); - t0 = float64_add(t0, t1, &env->fp_status); - update_fpscr(env, GETPC()); - return t0; -} - -void helper_fcmp_eq_FT(CPUSH4State *env, float32 t0, float32 t1) -{ - int relation; - - set_float_exception_flags(0, &env->fp_status); - relation = float32_compare(t0, t1, &env->fp_status); - if (unlikely(relation == float_relation_unordered)) { - update_fpscr(env, GETPC()); - } else { - env->sr_t = (relation == float_relation_equal); - } -} - -void helper_fcmp_eq_DT(CPUSH4State *env, float64 t0, float64 t1) -{ - int relation; - - set_float_exception_flags(0, &env->fp_status); - relation = float64_compare(t0, t1, &env->fp_status); - if (unlikely(relation == float_relation_unordered)) { - update_fpscr(env, GETPC()); - } else { - env->sr_t = (relation == float_relation_equal); - } -} - -void helper_fcmp_gt_FT(CPUSH4State *env, float32 t0, float32 t1) -{ - int relation; - - set_float_exception_flags(0, &env->fp_status); - relation = float32_compare(t0, t1, &env->fp_status); - if (unlikely(relation == float_relation_unordered)) { - update_fpscr(env, GETPC()); - } else { - env->sr_t = (relation == float_relation_greater); - } -} - -void helper_fcmp_gt_DT(CPUSH4State *env, float64 t0, float64 t1) -{ - int relation; - - set_float_exception_flags(0, &env->fp_status); - relation = float64_compare(t0, t1, &env->fp_status); - if (unlikely(relation == float_relation_unordered)) { - update_fpscr(env, GETPC()); - } else { - env->sr_t = (relation == float_relation_greater); - } -} - -float64 helper_fcnvsd_FT_DT(CPUSH4State *env, float32 t0) -{ - float64 ret; - set_float_exception_flags(0, &env->fp_status); - ret = float32_to_float64(t0, &env->fp_status); - update_fpscr(env, GETPC()); - return ret; -} - -float32 helper_fcnvds_DT_FT(CPUSH4State *env, float64 t0) -{ - float32 ret; - set_float_exception_flags(0, &env->fp_status); - ret = float64_to_float32(t0, &env->fp_status); - update_fpscr(env, GETPC()); - return ret; -} - -float32 helper_fdiv_FT(CPUSH4State *env, float32 t0, float32 t1) -{ - set_float_exception_flags(0, &env->fp_status); - t0 = float32_div(t0, t1, &env->fp_status); - update_fpscr(env, GETPC()); - return t0; -} - -float64 helper_fdiv_DT(CPUSH4State *env, float64 t0, float64 t1) -{ - set_float_exception_flags(0, &env->fp_status); - t0 = float64_div(t0, t1, &env->fp_status); - update_fpscr(env, GETPC()); - return t0; -} - -float32 helper_float_FT(CPUSH4State *env, uint32_t t0) -{ - float32 ret; - set_float_exception_flags(0, &env->fp_status); - ret = int32_to_float32(t0, &env->fp_status); - update_fpscr(env, GETPC()); - return ret; -} - -float64 helper_float_DT(CPUSH4State *env, uint32_t t0) -{ - float64 ret; - set_float_exception_flags(0, &env->fp_status); - ret = int32_to_float64(t0, &env->fp_status); - update_fpscr(env, GETPC()); - return ret; -} - -float32 helper_fmac_FT(CPUSH4State *env, float32 t0, float32 t1, float32 t2) -{ - set_float_exception_flags(0, &env->fp_status); - t0 = float32_muladd(t0, t1, t2, 0, &env->fp_status); - update_fpscr(env, GETPC()); - return t0; -} - -float32 helper_fmul_FT(CPUSH4State *env, float32 t0, float32 t1) -{ - set_float_exception_flags(0, &env->fp_status); - t0 = float32_mul(t0, t1, &env->fp_status); - update_fpscr(env, GETPC()); - return t0; -} - -float64 helper_fmul_DT(CPUSH4State *env, float64 t0, float64 t1) -{ - set_float_exception_flags(0, &env->fp_status); - t0 = float64_mul(t0, t1, &env->fp_status); - update_fpscr(env, GETPC()); - return t0; -} - -float32 helper_fneg_T(float32 t0) -{ - return float32_chs(t0); -} - -float32 helper_fsqrt_FT(CPUSH4State *env, float32 t0) -{ - set_float_exception_flags(0, &env->fp_status); - t0 = float32_sqrt(t0, &env->fp_status); - update_fpscr(env, GETPC()); - return t0; -} - -float64 helper_fsqrt_DT(CPUSH4State *env, float64 t0) -{ - set_float_exception_flags(0, &env->fp_status); - t0 = float64_sqrt(t0, &env->fp_status); - update_fpscr(env, GETPC()); - return t0; -} - -float32 helper_fsub_FT(CPUSH4State *env, float32 t0, float32 t1) -{ - set_float_exception_flags(0, &env->fp_status); - t0 = float32_sub(t0, t1, &env->fp_status); - update_fpscr(env, GETPC()); - return t0; -} - -float64 helper_fsub_DT(CPUSH4State *env, float64 t0, float64 t1) -{ - set_float_exception_flags(0, &env->fp_status); - t0 = float64_sub(t0, t1, &env->fp_status); - update_fpscr(env, GETPC()); - return t0; -} - -uint32_t helper_ftrc_FT(CPUSH4State *env, float32 t0) -{ - uint32_t ret; - set_float_exception_flags(0, &env->fp_status); - ret = float32_to_int32_round_to_zero(t0, &env->fp_status); - update_fpscr(env, GETPC()); - return ret; -} - -uint32_t helper_ftrc_DT(CPUSH4State *env, float64 t0) -{ - uint32_t ret; - set_float_exception_flags(0, &env->fp_status); - ret = float64_to_int32_round_to_zero(t0, &env->fp_status); - update_fpscr(env, GETPC()); - return ret; -} - -void helper_fipr(CPUSH4State *env, uint32_t m, uint32_t n) -{ - int bank, i; - float32 r, p; - - bank = (env->sr & FPSCR_FR) ? 16 : 0; - r = float32_zero; - set_float_exception_flags(0, &env->fp_status); - - for (i = 0 ; i < 4 ; i++) { - p = float32_mul(env->fregs[bank + m + i], - env->fregs[bank + n + i], - &env->fp_status); - r = float32_add(r, p, &env->fp_status); - } - update_fpscr(env, GETPC()); - - env->fregs[bank + n + 3] = r; -} - -void helper_ftrv(CPUSH4State *env, uint32_t n) -{ - int bank_matrix, bank_vector; - int i, j; - float32 r[4]; - float32 p; - - bank_matrix = (env->sr & FPSCR_FR) ? 0 : 16; - bank_vector = (env->sr & FPSCR_FR) ? 16 : 0; - set_float_exception_flags(0, &env->fp_status); - for (i = 0 ; i < 4 ; i++) { - r[i] = float32_zero; - for (j = 0 ; j < 4 ; j++) { - p = float32_mul(env->fregs[bank_matrix + 4 * j + i], - env->fregs[bank_vector + j], - &env->fp_status); - r[i] = float32_add(r[i], p, &env->fp_status); - } - } - update_fpscr(env, GETPC()); - - for (i = 0 ; i < 4 ; i++) { - env->fregs[bank_vector + i] = r[i]; - } -} |