root / target-sh4 / op.c @ a4625612
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/*
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* SH4 emulation
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*
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* Copyright (c) 2005 Samuel Tardieu
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "exec.h" |
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static inline void set_t(void) |
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{
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env->sr |= SR_T; |
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} |
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|
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static inline void clr_t(void) |
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{
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env->sr &= ~SR_T; |
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} |
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static inline void cond_t(int cond) |
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{
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if (cond)
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set_t(); |
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else
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clr_t(); |
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} |
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|
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void OPPROTO op_bf_s(void) |
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{
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env->delayed_pc = PARAM1; |
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if (!(env->sr & SR_T)) {
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env->flags |= DELAY_SLOT_TRUE; |
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} |
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RETURN(); |
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} |
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|
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void OPPROTO op_bt_s(void) |
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{
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env->delayed_pc = PARAM1; |
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if (env->sr & SR_T) {
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env->flags |= DELAY_SLOT_TRUE; |
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} |
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RETURN(); |
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} |
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|
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void OPPROTO op_store_flags(void) |
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{
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env->flags &= DELAY_SLOT_TRUE; |
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env->flags |= PARAM1; |
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RETURN(); |
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} |
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|
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void OPPROTO op_bra(void) |
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{
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env->delayed_pc = PARAM1; |
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RETURN(); |
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} |
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|
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void OPPROTO op_braf_T0(void) |
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{
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env->delayed_pc = PARAM1 + T0; |
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RETURN(); |
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} |
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|
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void OPPROTO op_bsr(void) |
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{
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env->pr = PARAM1; |
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env->delayed_pc = PARAM2; |
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RETURN(); |
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} |
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|
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void OPPROTO op_bsrf_T0(void) |
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{
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env->pr = PARAM1; |
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env->delayed_pc = PARAM1 + T0; |
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RETURN(); |
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} |
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|
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void OPPROTO op_jsr_T0(void) |
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{
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env->pr = PARAM1; |
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env->delayed_pc = T0; |
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RETURN(); |
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} |
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|
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void OPPROTO op_rts(void) |
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{
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env->delayed_pc = env->pr; |
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RETURN(); |
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} |
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|
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void OPPROTO op_ldtlb(void) |
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{
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helper_ldtlb(); |
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RETURN(); |
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} |
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|
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void OPPROTO op_frchg(void) |
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{
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env->fpscr ^= FPSCR_FR; |
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RETURN(); |
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} |
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|
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void OPPROTO op_fschg(void) |
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{
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env->fpscr ^= FPSCR_SZ; |
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RETURN(); |
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} |
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|
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void OPPROTO op_rte(void) |
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{
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env->sr = env->ssr; |
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env->delayed_pc = env->spc; |
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RETURN(); |
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} |
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void OPPROTO op_addc_T0_T1(void) |
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{
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helper_addc_T0_T1(); |
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RETURN(); |
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} |
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|
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void OPPROTO op_addv_T0_T1(void) |
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{
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helper_addv_T0_T1(); |
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RETURN(); |
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} |
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void OPPROTO op_cmp_str_T0_T1(void) |
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{
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cond_t((T0 & 0x000000ff) == (T1 & 0x000000ff) || |
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(T0 & 0x0000ff00) == (T1 & 0x0000ff00) || |
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(T0 & 0x00ff0000) == (T1 & 0x00ff0000) || |
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(T0 & 0xff000000) == (T1 & 0xff000000)); |
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RETURN(); |
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} |
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|
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void OPPROTO op_div0s_T0_T1(void) |
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{
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if (T1 & 0x80000000) |
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env->sr |= SR_Q; |
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else
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env->sr &= ~SR_Q; |
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if (T0 & 0x80000000) |
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env->sr |= SR_M; |
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else
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env->sr &= ~SR_M; |
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cond_t((T1 ^ T0) & 0x80000000);
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RETURN(); |
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} |
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void OPPROTO op_div1_T0_T1(void) |
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{
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helper_div1_T0_T1(); |
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RETURN(); |
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} |
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void OPPROTO op_dmulsl_T0_T1(void) |
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{
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helper_dmulsl_T0_T1(); |
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RETURN(); |
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} |
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void OPPROTO op_dmulul_T0_T1(void) |
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{
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helper_dmulul_T0_T1(); |
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RETURN(); |
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} |
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void OPPROTO op_macl_T0_T1(void) |
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{
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helper_macl_T0_T1(); |
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RETURN(); |
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} |
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void OPPROTO op_macw_T0_T1(void) |
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{
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helper_macw_T0_T1(); |
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RETURN(); |
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} |
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|
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void OPPROTO op_mull_T0_T1(void) |
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{
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env->macl = (T0 * T1) & 0xffffffff;
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RETURN(); |
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} |
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void OPPROTO op_mulsw_T0_T1(void) |
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{
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env->macl = (int32_t)(int16_t) T0 *(int32_t)(int16_t) T1; |
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RETURN(); |
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} |
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void OPPROTO op_muluw_T0_T1(void) |
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{
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env->macl = (uint32_t)(uint16_t) T0 *(uint32_t)(uint16_t) T1; |
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RETURN(); |
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} |
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void OPPROTO op_negc_T0(void) |
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{
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helper_negc_T0(); |
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RETURN(); |
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} |
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void OPPROTO op_shad_T0_T1(void) |
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{
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if ((T0 & 0x80000000) == 0) |
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T1 <<= (T0 & 0x1f);
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else if ((T0 & 0x1f) == 0) |
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T1 = (T1 & 0x80000000)? 0xffffffff : 0; |
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else
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T1 = ((int32_t) T1) >> ((~T0 & 0x1f) + 1); |
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RETURN(); |
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} |
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|
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void OPPROTO op_shld_T0_T1(void) |
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{
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if ((T0 & 0x80000000) == 0) |
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T1 <<= (T0 & 0x1f);
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else if ((T0 & 0x1f) == 0) |
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T1 = 0;
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else
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T1 = ((uint32_t) T1) >> ((~T0 & 0x1f) + 1); |
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RETURN(); |
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} |
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void OPPROTO op_subc_T0_T1(void) |
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{
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helper_subc_T0_T1(); |
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RETURN(); |
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} |
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void OPPROTO op_subv_T0_T1(void) |
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{
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helper_subv_T0_T1(); |
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RETURN(); |
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} |
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void OPPROTO op_trapa(void) |
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{
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env->tra = PARAM1 << 2;
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env->exception_index = 0x160;
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do_raise_exception(); |
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RETURN(); |
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} |
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void OPPROTO op_jmp_T0(void) |
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{
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env->delayed_pc = T0; |
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RETURN(); |
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} |
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void OPPROTO op_ldcl_rMplus_rN_bank(void) |
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{
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env->gregs[PARAM2] = env->gregs[PARAM1]; |
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env->gregs[PARAM1] += 4;
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RETURN(); |
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} |
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void OPPROTO op_ldc_T0_sr(void) |
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{
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env->sr = T0 & 0x700083f3;
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RETURN(); |
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} |
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void OPPROTO op_stc_sr_T0(void) |
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{
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T0 = env->sr; |
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RETURN(); |
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} |
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|
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#define LDSTOPS(target,load,store) \
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void OPPROTO op_##load##_T0_##target (void) \ |
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{ env ->target = T0; RETURN(); \
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} \ |
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void OPPROTO op_##store##_##target##_T0 (void) \ |
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{ T0 = env->target; RETURN(); \
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} \ |
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LDSTOPS(gbr, ldc, stc) |
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LDSTOPS(vbr, ldc, stc) |
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LDSTOPS(ssr, ldc, stc) |
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LDSTOPS(spc, ldc, stc) |
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LDSTOPS(sgr, ldc, stc) |
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LDSTOPS(dbr, ldc, stc) |
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LDSTOPS(mach, lds, sts) |
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LDSTOPS(macl, lds, sts) |
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LDSTOPS(pr, lds, sts) |
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LDSTOPS(fpul, lds, sts) |
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|
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void OPPROTO op_lds_T0_fpscr(void) |
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{
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env->fpscr = T0 & 0x003fffff;
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env->fp_status.float_rounding_mode = T0 & 0x01 ?
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float_round_to_zero : float_round_nearest_even; |
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RETURN(); |
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} |
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|
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void OPPROTO op_sts_fpscr_T0(void) |
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{
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T0 = env->fpscr & 0x003fffff;
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RETURN(); |
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} |
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|
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void OPPROTO op_rotcl_Rn(void) |
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{
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helper_rotcl(&env->gregs[PARAM1]); |
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RETURN(); |
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} |
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|
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void OPPROTO op_rotcr_Rn(void) |
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{
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helper_rotcr(&env->gregs[PARAM1]); |
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RETURN(); |
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} |
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|
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void OPPROTO op_rotl_Rn(void) |
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{
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cond_t(env->gregs[PARAM1] & 0x80000000);
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env->gregs[PARAM1] = (env->gregs[PARAM1] << 1) | (env->sr & SR_T);
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RETURN(); |
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} |
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|
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void OPPROTO op_rotr_Rn(void) |
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{
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cond_t(env->gregs[PARAM1] & 1);
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env->gregs[PARAM1] = (env->gregs[PARAM1] >> 1) |
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((env->sr & SR_T) ? 0x80000000 : 0); |
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RETURN(); |
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} |
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|
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void OPPROTO op_shal_Rn(void) |
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{
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cond_t(env->gregs[PARAM1] & 0x80000000);
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env->gregs[PARAM1] <<= 1;
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RETURN(); |
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} |
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|
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void OPPROTO op_shar_Rn(void) |
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{
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cond_t(env->gregs[PARAM1] & 1);
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*(int32_t *)&env->gregs[PARAM1] >>= 1;
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RETURN(); |
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} |
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|
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void OPPROTO op_shlr_Rn(void) |
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{
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cond_t(env->gregs[PARAM1] & 1);
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env->gregs[PARAM1] >>= 1;
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RETURN(); |
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} |
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|
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void OPPROTO op_fmov_frN_FT0(void) |
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{
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FT0 = env->fregs[PARAM1]; |
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RETURN(); |
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} |
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|
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void OPPROTO op_fmov_drN_DT0(void) |
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{
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CPU_DoubleU d; |
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|
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d.l.upper = *(uint32_t *)&env->fregs[PARAM1]; |
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d.l.lower = *(uint32_t *)&env->fregs[PARAM1 + 1];
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DT0 = d.d; |
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RETURN(); |
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} |
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|
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void OPPROTO op_fmov_frN_FT1(void) |
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{
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FT1 = env->fregs[PARAM1]; |
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RETURN(); |
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} |
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|
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void OPPROTO op_fmov_drN_DT1(void) |
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{
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CPU_DoubleU d; |
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|
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d.l.upper = *(uint32_t *)&env->fregs[PARAM1]; |
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d.l.lower = *(uint32_t *)&env->fregs[PARAM1 + 1];
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DT1 = d.d; |
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RETURN(); |
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} |
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|
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void OPPROTO op_fmov_FT0_frN(void) |
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{
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env->fregs[PARAM1] = FT0; |
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RETURN(); |
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} |
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|
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void OPPROTO op_fmov_DT0_drN(void) |
| 406 |
{
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CPU_DoubleU d; |
| 408 |
|
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d.d = DT0; |
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*(uint32_t *)&env->fregs[PARAM1] = d.l.upper; |
| 411 |
*(uint32_t *)&env->fregs[PARAM1 + 1] = d.l.lower;
|
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RETURN(); |
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} |
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|
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void OPPROTO op_fadd_FT(void) |
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{
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FT0 = float32_add(FT0, FT1, &env->fp_status); |
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RETURN(); |
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} |
| 420 |
|
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void OPPROTO op_fadd_DT(void) |
| 422 |
{
|
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DT0 = float64_add(DT0, DT1, &env->fp_status); |
| 424 |
RETURN(); |
| 425 |
} |
| 426 |
|
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void OPPROTO op_fsub_FT(void) |
| 428 |
{
|
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FT0 = float32_sub(FT0, FT1, &env->fp_status); |
| 430 |
RETURN(); |
| 431 |
} |
| 432 |
|
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void OPPROTO op_fsub_DT(void) |
| 434 |
{
|
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DT0 = float64_sub(DT0, DT1, &env->fp_status); |
| 436 |
RETURN(); |
| 437 |
} |
| 438 |
|
| 439 |
void OPPROTO op_fmul_FT(void) |
| 440 |
{
|
| 441 |
FT0 = float32_mul(FT0, FT1, &env->fp_status); |
| 442 |
RETURN(); |
| 443 |
} |
| 444 |
|
| 445 |
void OPPROTO op_fmul_DT(void) |
| 446 |
{
|
| 447 |
DT0 = float64_mul(DT0, DT1, &env->fp_status); |
| 448 |
RETURN(); |
| 449 |
} |
| 450 |
|
| 451 |
void OPPROTO op_fdiv_FT(void) |
| 452 |
{
|
| 453 |
FT0 = float32_div(FT0, FT1, &env->fp_status); |
| 454 |
RETURN(); |
| 455 |
} |
| 456 |
|
| 457 |
void OPPROTO op_fdiv_DT(void) |
| 458 |
{
|
| 459 |
DT0 = float64_div(DT0, DT1, &env->fp_status); |
| 460 |
RETURN(); |
| 461 |
} |
| 462 |
|
| 463 |
void OPPROTO op_fcmp_eq_FT(void) |
| 464 |
{
|
| 465 |
cond_t(float32_compare(FT0, FT1, &env->fp_status) == 0);
|
| 466 |
RETURN(); |
| 467 |
} |
| 468 |
|
| 469 |
void OPPROTO op_fcmp_eq_DT(void) |
| 470 |
{
|
| 471 |
cond_t(float64_compare(DT0, DT1, &env->fp_status) == 0);
|
| 472 |
RETURN(); |
| 473 |
} |
| 474 |
|
| 475 |
void OPPROTO op_fcmp_gt_FT(void) |
| 476 |
{
|
| 477 |
cond_t(float32_compare(FT0, FT1, &env->fp_status) == 1);
|
| 478 |
RETURN(); |
| 479 |
} |
| 480 |
|
| 481 |
void OPPROTO op_fcmp_gt_DT(void) |
| 482 |
{
|
| 483 |
cond_t(float64_compare(DT0, DT1, &env->fp_status) == 1);
|
| 484 |
RETURN(); |
| 485 |
} |
| 486 |
|
| 487 |
void OPPROTO op_float_FT(void) |
| 488 |
{
|
| 489 |
FT0 = int32_to_float32(env->fpul, &env->fp_status); |
| 490 |
RETURN(); |
| 491 |
} |
| 492 |
|
| 493 |
void OPPROTO op_float_DT(void) |
| 494 |
{
|
| 495 |
DT0 = int32_to_float64(env->fpul, &env->fp_status); |
| 496 |
RETURN(); |
| 497 |
} |
| 498 |
|
| 499 |
void OPPROTO op_ftrc_FT(void) |
| 500 |
{
|
| 501 |
env->fpul = float32_to_int32_round_to_zero(FT0, &env->fp_status); |
| 502 |
RETURN(); |
| 503 |
} |
| 504 |
|
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void OPPROTO op_ftrc_DT(void) |
| 506 |
{
|
| 507 |
env->fpul = float64_to_int32_round_to_zero(DT0, &env->fp_status); |
| 508 |
RETURN(); |
| 509 |
} |
| 510 |
|
| 511 |
void OPPROTO op_fneg_frN(void) |
| 512 |
{
|
| 513 |
env->fregs[PARAM1] = float32_chs(env->fregs[PARAM1]); |
| 514 |
RETURN(); |
| 515 |
} |
| 516 |
|
| 517 |
void OPPROTO op_fabs_FT(void) |
| 518 |
{
|
| 519 |
FT0 = float32_abs(FT0); |
| 520 |
RETURN(); |
| 521 |
} |
| 522 |
|
| 523 |
void OPPROTO op_fabs_DT(void) |
| 524 |
{
|
| 525 |
DT0 = float64_abs(DT0); |
| 526 |
RETURN(); |
| 527 |
} |
| 528 |
|
| 529 |
void OPPROTO op_fcnvsd_FT_DT(void) |
| 530 |
{
|
| 531 |
DT0 = float32_to_float64(FT0, &env->fp_status); |
| 532 |
RETURN(); |
| 533 |
} |
| 534 |
|
| 535 |
void OPPROTO op_fcnvds_DT_FT(void) |
| 536 |
{
|
| 537 |
FT0 = float64_to_float32(DT0, &env->fp_status); |
| 538 |
RETURN(); |
| 539 |
} |
| 540 |
|
| 541 |
void OPPROTO op_fsqrt_FT(void) |
| 542 |
{
|
| 543 |
FT0 = float32_sqrt(FT0, &env->fp_status); |
| 544 |
RETURN(); |
| 545 |
} |
| 546 |
|
| 547 |
void OPPROTO op_fsqrt_DT(void) |
| 548 |
{
|
| 549 |
DT0 = float64_sqrt(DT0, &env->fp_status); |
| 550 |
RETURN(); |
| 551 |
} |
| 552 |
|
| 553 |
void OPPROTO op_fmov_T0_frN(void) |
| 554 |
{
|
| 555 |
*(uint32_t *)&env->fregs[PARAM1] = T0; |
| 556 |
RETURN(); |
| 557 |
} |
| 558 |
|
| 559 |
void OPPROTO op_movl_fpul_FT0(void) |
| 560 |
{
|
| 561 |
FT0 = *(float32 *)&env->fpul; |
| 562 |
RETURN(); |
| 563 |
} |
| 564 |
|
| 565 |
void OPPROTO op_movl_FT0_fpul(void) |
| 566 |
{
|
| 567 |
*(float32 *)&env->fpul = FT0; |
| 568 |
RETURN(); |
| 569 |
} |
| 570 |
|
| 571 |
void OPPROTO op_jT(void) |
| 572 |
{
|
| 573 |
if (env->sr & SR_T)
|
| 574 |
GOTO_LABEL_PARAM(1);
|
| 575 |
RETURN(); |
| 576 |
} |
| 577 |
|
| 578 |
void OPPROTO op_jdelayed(void) |
| 579 |
{
|
| 580 |
if (env->flags & DELAY_SLOT_TRUE) {
|
| 581 |
env->flags &= ~DELAY_SLOT_TRUE; |
| 582 |
GOTO_LABEL_PARAM(1);
|
| 583 |
} |
| 584 |
RETURN(); |
| 585 |
} |
| 586 |
|
| 587 |
void OPPROTO op_movl_delayed_pc_PC(void) |
| 588 |
{
|
| 589 |
env->pc = env->delayed_pc; |
| 590 |
RETURN(); |
| 591 |
} |
| 592 |
|
| 593 |
void OPPROTO op_raise_illegal_instruction(void) |
| 594 |
{
|
| 595 |
env->exception_index = 0x180;
|
| 596 |
do_raise_exception(); |
| 597 |
RETURN(); |
| 598 |
} |
| 599 |
|
| 600 |
void OPPROTO op_raise_slot_illegal_instruction(void) |
| 601 |
{
|
| 602 |
env->exception_index = 0x1a0;
|
| 603 |
do_raise_exception(); |
| 604 |
RETURN(); |
| 605 |
} |
| 606 |
|
| 607 |
void OPPROTO op_debug(void) |
| 608 |
{
|
| 609 |
env->exception_index = EXCP_DEBUG; |
| 610 |
cpu_loop_exit(); |
| 611 |
} |
| 612 |
|
| 613 |
void OPPROTO op_sleep(void) |
| 614 |
{
|
| 615 |
env->halted = 1;
|
| 616 |
env->exception_index = EXCP_HLT; |
| 617 |
cpu_loop_exit(); |
| 618 |
} |
| 619 |
|
| 620 |
/* Load and store */
|
| 621 |
#define MEMSUFFIX _raw
|
| 622 |
#include "op_mem.c" |
| 623 |
#undef MEMSUFFIX
|
| 624 |
#if !defined(CONFIG_USER_ONLY)
|
| 625 |
#define MEMSUFFIX _user
|
| 626 |
#include "op_mem.c" |
| 627 |
#undef MEMSUFFIX
|
| 628 |
|
| 629 |
#define MEMSUFFIX _kernel
|
| 630 |
#include "op_mem.c" |
| 631 |
#undef MEMSUFFIX
|
| 632 |
#endif
|