root / target-i386 / op.c @ 2c0262af
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/*
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* i386 micro operations
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*
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* Copyright (c) 2003 Fabrice Bellard
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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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/* n must be a constant to be efficient */
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static inline int lshift(int x, int n) |
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{
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if (n >= 0) |
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return x << n;
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else
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return x >> (-n);
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} |
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/* we define the various pieces of code used by the JIT */
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#define REG EAX
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#define REGNAME _EAX
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#include "opreg_template.h" |
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#undef REG
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#undef REGNAME
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#define REG ECX
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#define REGNAME _ECX
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#include "opreg_template.h" |
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#undef REG
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#undef REGNAME
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#define REG EDX
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#define REGNAME _EDX
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#include "opreg_template.h" |
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#undef REG
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#undef REGNAME
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#define REG EBX
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#define REGNAME _EBX
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#include "opreg_template.h" |
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#undef REG
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#undef REGNAME
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#define REG ESP
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#define REGNAME _ESP
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#include "opreg_template.h" |
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#undef REG
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#undef REGNAME
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#define REG EBP
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#define REGNAME _EBP
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#include "opreg_template.h" |
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#undef REG
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#undef REGNAME
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#define REG ESI
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#define REGNAME _ESI
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#include "opreg_template.h" |
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#undef REG
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#undef REGNAME
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#define REG EDI
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#define REGNAME _EDI
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#include "opreg_template.h" |
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#undef REG
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#undef REGNAME
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/* operations with flags */
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/* update flags with T0 and T1 (add/sub case) */
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void OPPROTO op_update2_cc(void) |
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{
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CC_SRC = T1; |
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CC_DST = T0; |
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} |
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/* update flags with T0 (logic operation case) */
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void OPPROTO op_update1_cc(void) |
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{
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CC_DST = T0; |
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} |
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void OPPROTO op_update_neg_cc(void) |
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{
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CC_SRC = -T0; |
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CC_DST = T0; |
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} |
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void OPPROTO op_cmpl_T0_T1_cc(void) |
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{
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CC_SRC = T1; |
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CC_DST = T0 - T1; |
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} |
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void OPPROTO op_update_inc_cc(void) |
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{
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CC_SRC = cc_table[CC_OP].compute_c(); |
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CC_DST = T0; |
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} |
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void OPPROTO op_testl_T0_T1_cc(void) |
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{
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CC_DST = T0 & T1; |
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} |
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/* operations without flags */
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void OPPROTO op_addl_T0_T1(void) |
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{
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T0 += T1; |
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} |
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void OPPROTO op_orl_T0_T1(void) |
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{
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T0 |= T1; |
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} |
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void OPPROTO op_andl_T0_T1(void) |
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{
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T0 &= T1; |
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} |
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void OPPROTO op_subl_T0_T1(void) |
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{
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T0 -= T1; |
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} |
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void OPPROTO op_xorl_T0_T1(void) |
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{
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T0 ^= T1; |
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} |
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void OPPROTO op_negl_T0(void) |
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{
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T0 = -T0; |
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} |
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void OPPROTO op_incl_T0(void) |
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{
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T0++; |
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} |
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void OPPROTO op_decl_T0(void) |
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{
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T0--; |
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} |
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void OPPROTO op_notl_T0(void) |
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{
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T0 = ~T0; |
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} |
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void OPPROTO op_bswapl_T0(void) |
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{
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T0 = bswap32(T0); |
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} |
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/* multiply/divide */
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void OPPROTO op_mulb_AL_T0(void) |
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{
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unsigned int res; |
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res = (uint8_t)EAX * (uint8_t)T0; |
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EAX = (EAX & 0xffff0000) | res;
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CC_SRC = (res & 0xff00);
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} |
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void OPPROTO op_imulb_AL_T0(void) |
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{
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int res;
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res = (int8_t)EAX * (int8_t)T0; |
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EAX = (EAX & 0xffff0000) | (res & 0xffff); |
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CC_SRC = (res != (int8_t)res); |
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} |
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void OPPROTO op_mulw_AX_T0(void) |
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{
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unsigned int res; |
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res = (uint16_t)EAX * (uint16_t)T0; |
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EAX = (EAX & 0xffff0000) | (res & 0xffff); |
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EDX = (EDX & 0xffff0000) | ((res >> 16) & 0xffff); |
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CC_SRC = res >> 16;
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} |
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void OPPROTO op_imulw_AX_T0(void) |
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{
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int res;
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res = (int16_t)EAX * (int16_t)T0; |
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EAX = (EAX & 0xffff0000) | (res & 0xffff); |
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EDX = (EDX & 0xffff0000) | ((res >> 16) & 0xffff); |
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CC_SRC = (res != (int16_t)res); |
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} |
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void OPPROTO op_mull_EAX_T0(void) |
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{
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uint64_t res; |
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res = (uint64_t)((uint32_t)EAX) * (uint64_t)((uint32_t)T0); |
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EAX = res; |
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EDX = res >> 32;
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CC_SRC = res >> 32;
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} |
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void OPPROTO op_imull_EAX_T0(void) |
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{
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int64_t res; |
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res = (int64_t)((int32_t)EAX) * (int64_t)((int32_t)T0); |
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EAX = res; |
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EDX = res >> 32;
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CC_SRC = (res != (int32_t)res); |
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} |
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void OPPROTO op_imulw_T0_T1(void) |
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{
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int res;
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res = (int16_t)T0 * (int16_t)T1; |
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T0 = res; |
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CC_SRC = (res != (int16_t)res); |
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} |
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void OPPROTO op_imull_T0_T1(void) |
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{
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int64_t res; |
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res = (int64_t)((int32_t)T0) * (int64_t)((int32_t)T1); |
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T0 = res; |
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CC_SRC = (res != (int32_t)res); |
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} |
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/* division, flags are undefined */
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/* XXX: add exceptions for overflow */
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void OPPROTO op_divb_AL_T0(void) |
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{
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unsigned int num, den, q, r; |
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num = (EAX & 0xffff);
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den = (T0 & 0xff);
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if (den == 0) { |
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EIP = PARAM1; |
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raise_exception(EXCP00_DIVZ); |
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} |
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q = (num / den) & 0xff;
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r = (num % den) & 0xff;
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EAX = (EAX & 0xffff0000) | (r << 8) | q; |
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} |
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void OPPROTO op_idivb_AL_T0(void) |
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{
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int num, den, q, r;
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num = (int16_t)EAX; |
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den = (int8_t)T0; |
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if (den == 0) { |
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EIP = PARAM1; |
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raise_exception(EXCP00_DIVZ); |
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} |
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q = (num / den) & 0xff;
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r = (num % den) & 0xff;
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EAX = (EAX & 0xffff0000) | (r << 8) | q; |
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} |
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void OPPROTO op_divw_AX_T0(void) |
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{
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unsigned int num, den, q, r; |
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num = (EAX & 0xffff) | ((EDX & 0xffff) << 16); |
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den = (T0 & 0xffff);
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if (den == 0) { |
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EIP = PARAM1; |
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raise_exception(EXCP00_DIVZ); |
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} |
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q = (num / den) & 0xffff;
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r = (num % den) & 0xffff;
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EAX = (EAX & 0xffff0000) | q;
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EDX = (EDX & 0xffff0000) | r;
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} |
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void OPPROTO op_idivw_AX_T0(void) |
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{
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int num, den, q, r;
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num = (EAX & 0xffff) | ((EDX & 0xffff) << 16); |
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den = (int16_t)T0; |
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if (den == 0) { |
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EIP = PARAM1; |
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raise_exception(EXCP00_DIVZ); |
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} |
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q = (num / den) & 0xffff;
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r = (num % den) & 0xffff;
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EAX = (EAX & 0xffff0000) | q;
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EDX = (EDX & 0xffff0000) | r;
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} |
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void OPPROTO op_divl_EAX_T0(void) |
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{
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helper_divl_EAX_T0(PARAM1); |
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} |
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void OPPROTO op_idivl_EAX_T0(void) |
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{
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helper_idivl_EAX_T0(PARAM1); |
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} |
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/* constant load & misc op */
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void OPPROTO op_movl_T0_im(void) |
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{
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T0 = PARAM1; |
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} |
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void OPPROTO op_addl_T0_im(void) |
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{
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T0 += PARAM1; |
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} |
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void OPPROTO op_andl_T0_ffff(void) |
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{
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T0 = T0 & 0xffff;
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} |
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void OPPROTO op_andl_T0_im(void) |
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{
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T0 = T0 & PARAM1; |
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} |
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void OPPROTO op_movl_T0_T1(void) |
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{
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T0 = T1; |
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} |
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void OPPROTO op_movl_T1_im(void) |
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{
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T1 = PARAM1; |
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} |
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void OPPROTO op_addl_T1_im(void) |
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{
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T1 += PARAM1; |
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} |
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void OPPROTO op_movl_T1_A0(void) |
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{
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T1 = A0; |
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} |
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void OPPROTO op_movl_A0_im(void) |
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{
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A0 = PARAM1; |
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} |
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void OPPROTO op_addl_A0_im(void) |
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{
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A0 += PARAM1; |
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} |
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void OPPROTO op_addl_A0_AL(void) |
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{
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A0 += (EAX & 0xff);
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} |
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void OPPROTO op_andl_A0_ffff(void) |
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{
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A0 = A0 & 0xffff;
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} |
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/* memory access */
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#define MEMSUFFIX
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#include "ops_mem.h" |
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#define MEMSUFFIX _user
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#include "ops_mem.h" |
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#define MEMSUFFIX _kernel
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#include "ops_mem.h" |
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/* used for bit operations */
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void OPPROTO op_add_bitw_A0_T1(void) |
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{
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A0 += ((int32_t)T1 >> 4) << 1; |
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} |
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void OPPROTO op_add_bitl_A0_T1(void) |
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{
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A0 += ((int32_t)T1 >> 5) << 2; |
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} |
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/* indirect jump */
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void OPPROTO op_jmp_T0(void) |
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{
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EIP = T0; |
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} |
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void OPPROTO op_jmp_im(void) |
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{
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EIP = PARAM1; |
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} |
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|
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void OPPROTO op_hlt(void) |
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{
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env->exception_index = EXCP_HLT; |
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cpu_loop_exit(); |
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} |
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void OPPROTO op_debug(void) |
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{
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env->exception_index = EXCP_DEBUG; |
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cpu_loop_exit(); |
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} |
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|
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void OPPROTO op_raise_interrupt(void) |
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{
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int intno;
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unsigned int next_eip; |
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intno = PARAM1; |
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next_eip = PARAM2; |
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raise_interrupt(intno, 1, 0, next_eip); |
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} |
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|
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void OPPROTO op_raise_exception(void) |
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{
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int exception_index;
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exception_index = PARAM1; |
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raise_exception(exception_index); |
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} |
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|
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void OPPROTO op_into(void) |
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{
|
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int eflags;
|
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eflags = cc_table[CC_OP].compute_all(); |
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if (eflags & CC_O) {
|
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raise_interrupt(EXCP04_INTO, 1, 0, PARAM1); |
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} |
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FORCE_RET(); |
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} |
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|
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void OPPROTO op_cli(void) |
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{
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env->eflags &= ~IF_MASK; |
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} |
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|
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void OPPROTO op_sti(void) |
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{
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env->eflags |= IF_MASK; |
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} |
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|
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void OPPROTO op_set_inhibit_irq(void) |
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{
|
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env->hflags |= HF_INHIBIT_IRQ_MASK; |
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} |
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|
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void OPPROTO op_reset_inhibit_irq(void) |
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{
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env->hflags &= ~HF_INHIBIT_IRQ_MASK; |
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} |
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|
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#if 0
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/* vm86plus instructions */
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void OPPROTO op_cli_vm(void)
|
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{
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env->eflags &= ~VIF_MASK;
|
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}
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|
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void OPPROTO op_sti_vm(void)
|
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{
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env->eflags |= VIF_MASK;
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if (env->eflags & VIP_MASK) {
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EIP = PARAM1;
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raise_exception(EXCP0D_GPF);
|
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}
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FORCE_RET();
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}
|
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#endif
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|
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void OPPROTO op_boundw(void) |
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{
|
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int low, high, v;
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low = ldsw((uint8_t *)A0); |
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high = ldsw((uint8_t *)A0 + 2);
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v = (int16_t)T0; |
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if (v < low || v > high) {
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EIP = PARAM1; |
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raise_exception(EXCP05_BOUND); |
| 497 |
} |
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FORCE_RET(); |
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} |
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|
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void OPPROTO op_boundl(void) |
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{
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int low, high, v;
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low = ldl((uint8_t *)A0); |
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high = ldl((uint8_t *)A0 + 4);
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v = T0; |
| 507 |
if (v < low || v > high) {
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EIP = PARAM1; |
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raise_exception(EXCP05_BOUND); |
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} |
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FORCE_RET(); |
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} |
| 513 |
|
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void OPPROTO op_cmpxchg8b(void) |
| 515 |
{
|
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helper_cmpxchg8b(); |
| 517 |
} |
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|
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void OPPROTO op_jmp(void) |
| 520 |
{
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JUMP_TB(op_jmp, PARAM1, 0, PARAM2);
|
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} |
| 523 |
|
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void OPPROTO op_movl_T0_0(void) |
| 525 |
{
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T0 = 0;
|
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} |
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|
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void OPPROTO op_exit_tb(void) |
| 530 |
{
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EXIT_TB(); |
| 532 |
} |
| 533 |
|
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/* multiple size ops */
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|
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#define ldul ldl
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|
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#define SHIFT 0 |
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#include "ops_template.h" |
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#undef SHIFT
|
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|
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#define SHIFT 1 |
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#include "ops_template.h" |
| 544 |
#undef SHIFT
|
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|
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#define SHIFT 2 |
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#include "ops_template.h" |
| 548 |
#undef SHIFT
|
| 549 |
|
| 550 |
/* sign extend */
|
| 551 |
|
| 552 |
void OPPROTO op_movsbl_T0_T0(void) |
| 553 |
{
|
| 554 |
T0 = (int8_t)T0; |
| 555 |
} |
| 556 |
|
| 557 |
void OPPROTO op_movzbl_T0_T0(void) |
| 558 |
{
|
| 559 |
T0 = (uint8_t)T0; |
| 560 |
} |
| 561 |
|
| 562 |
void OPPROTO op_movswl_T0_T0(void) |
| 563 |
{
|
| 564 |
T0 = (int16_t)T0; |
| 565 |
} |
| 566 |
|
| 567 |
void OPPROTO op_movzwl_T0_T0(void) |
| 568 |
{
|
| 569 |
T0 = (uint16_t)T0; |
| 570 |
} |
| 571 |
|
| 572 |
void OPPROTO op_movswl_EAX_AX(void) |
| 573 |
{
|
| 574 |
EAX = (int16_t)EAX; |
| 575 |
} |
| 576 |
|
| 577 |
void OPPROTO op_movsbw_AX_AL(void) |
| 578 |
{
|
| 579 |
EAX = (EAX & 0xffff0000) | ((int8_t)EAX & 0xffff); |
| 580 |
} |
| 581 |
|
| 582 |
void OPPROTO op_movslq_EDX_EAX(void) |
| 583 |
{
|
| 584 |
EDX = (int32_t)EAX >> 31;
|
| 585 |
} |
| 586 |
|
| 587 |
void OPPROTO op_movswl_DX_AX(void) |
| 588 |
{
|
| 589 |
EDX = (EDX & 0xffff0000) | (((int16_t)EAX >> 15) & 0xffff); |
| 590 |
} |
| 591 |
|
| 592 |
/* string ops helpers */
|
| 593 |
|
| 594 |
void OPPROTO op_addl_ESI_T0(void) |
| 595 |
{
|
| 596 |
ESI += T0; |
| 597 |
} |
| 598 |
|
| 599 |
void OPPROTO op_addw_ESI_T0(void) |
| 600 |
{
|
| 601 |
ESI = (ESI & ~0xffff) | ((ESI + T0) & 0xffff); |
| 602 |
} |
| 603 |
|
| 604 |
void OPPROTO op_addl_EDI_T0(void) |
| 605 |
{
|
| 606 |
EDI += T0; |
| 607 |
} |
| 608 |
|
| 609 |
void OPPROTO op_addw_EDI_T0(void) |
| 610 |
{
|
| 611 |
EDI = (EDI & ~0xffff) | ((EDI + T0) & 0xffff); |
| 612 |
} |
| 613 |
|
| 614 |
void OPPROTO op_decl_ECX(void) |
| 615 |
{
|
| 616 |
ECX--; |
| 617 |
} |
| 618 |
|
| 619 |
void OPPROTO op_decw_ECX(void) |
| 620 |
{
|
| 621 |
ECX = (ECX & ~0xffff) | ((ECX - 1) & 0xffff); |
| 622 |
} |
| 623 |
|
| 624 |
/* push/pop */
|
| 625 |
|
| 626 |
void op_pushl_T0(void) |
| 627 |
{
|
| 628 |
uint32_t offset; |
| 629 |
offset = ESP - 4;
|
| 630 |
stl((void *)offset, T0);
|
| 631 |
/* modify ESP after to handle exceptions correctly */
|
| 632 |
ESP = offset; |
| 633 |
} |
| 634 |
|
| 635 |
void op_pushw_T0(void) |
| 636 |
{
|
| 637 |
uint32_t offset; |
| 638 |
offset = ESP - 2;
|
| 639 |
stw((void *)offset, T0);
|
| 640 |
/* modify ESP after to handle exceptions correctly */
|
| 641 |
ESP = offset; |
| 642 |
} |
| 643 |
|
| 644 |
void op_pushl_ss32_T0(void) |
| 645 |
{
|
| 646 |
uint32_t offset; |
| 647 |
offset = ESP - 4;
|
| 648 |
stl(env->segs[R_SS].base + offset, T0); |
| 649 |
/* modify ESP after to handle exceptions correctly */
|
| 650 |
ESP = offset; |
| 651 |
} |
| 652 |
|
| 653 |
void op_pushw_ss32_T0(void) |
| 654 |
{
|
| 655 |
uint32_t offset; |
| 656 |
offset = ESP - 2;
|
| 657 |
stw(env->segs[R_SS].base + offset, T0); |
| 658 |
/* modify ESP after to handle exceptions correctly */
|
| 659 |
ESP = offset; |
| 660 |
} |
| 661 |
|
| 662 |
void op_pushl_ss16_T0(void) |
| 663 |
{
|
| 664 |
uint32_t offset; |
| 665 |
offset = (ESP - 4) & 0xffff; |
| 666 |
stl(env->segs[R_SS].base + offset, T0); |
| 667 |
/* modify ESP after to handle exceptions correctly */
|
| 668 |
ESP = (ESP & ~0xffff) | offset;
|
| 669 |
} |
| 670 |
|
| 671 |
void op_pushw_ss16_T0(void) |
| 672 |
{
|
| 673 |
uint32_t offset; |
| 674 |
offset = (ESP - 2) & 0xffff; |
| 675 |
stw(env->segs[R_SS].base + offset, T0); |
| 676 |
/* modify ESP after to handle exceptions correctly */
|
| 677 |
ESP = (ESP & ~0xffff) | offset;
|
| 678 |
} |
| 679 |
|
| 680 |
/* NOTE: ESP update is done after */
|
| 681 |
void op_popl_T0(void) |
| 682 |
{
|
| 683 |
T0 = ldl((void *)ESP);
|
| 684 |
} |
| 685 |
|
| 686 |
void op_popw_T0(void) |
| 687 |
{
|
| 688 |
T0 = lduw((void *)ESP);
|
| 689 |
} |
| 690 |
|
| 691 |
void op_popl_ss32_T0(void) |
| 692 |
{
|
| 693 |
T0 = ldl(env->segs[R_SS].base + ESP); |
| 694 |
} |
| 695 |
|
| 696 |
void op_popw_ss32_T0(void) |
| 697 |
{
|
| 698 |
T0 = lduw(env->segs[R_SS].base + ESP); |
| 699 |
} |
| 700 |
|
| 701 |
void op_popl_ss16_T0(void) |
| 702 |
{
|
| 703 |
T0 = ldl(env->segs[R_SS].base + (ESP & 0xffff));
|
| 704 |
} |
| 705 |
|
| 706 |
void op_popw_ss16_T0(void) |
| 707 |
{
|
| 708 |
T0 = lduw(env->segs[R_SS].base + (ESP & 0xffff));
|
| 709 |
} |
| 710 |
|
| 711 |
void op_addl_ESP_4(void) |
| 712 |
{
|
| 713 |
ESP += 4;
|
| 714 |
} |
| 715 |
|
| 716 |
void op_addl_ESP_2(void) |
| 717 |
{
|
| 718 |
ESP += 2;
|
| 719 |
} |
| 720 |
|
| 721 |
void op_addw_ESP_4(void) |
| 722 |
{
|
| 723 |
ESP = (ESP & ~0xffff) | ((ESP + 4) & 0xffff); |
| 724 |
} |
| 725 |
|
| 726 |
void op_addw_ESP_2(void) |
| 727 |
{
|
| 728 |
ESP = (ESP & ~0xffff) | ((ESP + 2) & 0xffff); |
| 729 |
} |
| 730 |
|
| 731 |
void op_addl_ESP_im(void) |
| 732 |
{
|
| 733 |
ESP += PARAM1; |
| 734 |
} |
| 735 |
|
| 736 |
void op_addw_ESP_im(void) |
| 737 |
{
|
| 738 |
ESP = (ESP & ~0xffff) | ((ESP + PARAM1) & 0xffff); |
| 739 |
} |
| 740 |
|
| 741 |
void OPPROTO op_rdtsc(void) |
| 742 |
{
|
| 743 |
helper_rdtsc(); |
| 744 |
} |
| 745 |
|
| 746 |
void OPPROTO op_cpuid(void) |
| 747 |
{
|
| 748 |
helper_cpuid(); |
| 749 |
} |
| 750 |
|
| 751 |
void OPPROTO op_rdmsr(void) |
| 752 |
{
|
| 753 |
helper_rdmsr(); |
| 754 |
} |
| 755 |
|
| 756 |
void OPPROTO op_wrmsr(void) |
| 757 |
{
|
| 758 |
helper_wrmsr(); |
| 759 |
} |
| 760 |
|
| 761 |
/* bcd */
|
| 762 |
|
| 763 |
/* XXX: exception */
|
| 764 |
void OPPROTO op_aam(void) |
| 765 |
{
|
| 766 |
int base = PARAM1;
|
| 767 |
int al, ah;
|
| 768 |
al = EAX & 0xff;
|
| 769 |
ah = al / base; |
| 770 |
al = al % base; |
| 771 |
EAX = (EAX & ~0xffff) | al | (ah << 8); |
| 772 |
CC_DST = al; |
| 773 |
} |
| 774 |
|
| 775 |
void OPPROTO op_aad(void) |
| 776 |
{
|
| 777 |
int base = PARAM1;
|
| 778 |
int al, ah;
|
| 779 |
al = EAX & 0xff;
|
| 780 |
ah = (EAX >> 8) & 0xff; |
| 781 |
al = ((ah * base) + al) & 0xff;
|
| 782 |
EAX = (EAX & ~0xffff) | al;
|
| 783 |
CC_DST = al; |
| 784 |
} |
| 785 |
|
| 786 |
void OPPROTO op_aaa(void) |
| 787 |
{
|
| 788 |
int icarry;
|
| 789 |
int al, ah, af;
|
| 790 |
int eflags;
|
| 791 |
|
| 792 |
eflags = cc_table[CC_OP].compute_all(); |
| 793 |
af = eflags & CC_A; |
| 794 |
al = EAX & 0xff;
|
| 795 |
ah = (EAX >> 8) & 0xff; |
| 796 |
|
| 797 |
icarry = (al > 0xf9);
|
| 798 |
if (((al & 0x0f) > 9 ) || af) { |
| 799 |
al = (al + 6) & 0x0f; |
| 800 |
ah = (ah + 1 + icarry) & 0xff; |
| 801 |
eflags |= CC_C | CC_A; |
| 802 |
} else {
|
| 803 |
eflags &= ~(CC_C | CC_A); |
| 804 |
al &= 0x0f;
|
| 805 |
} |
| 806 |
EAX = (EAX & ~0xffff) | al | (ah << 8); |
| 807 |
CC_SRC = eflags; |
| 808 |
} |
| 809 |
|
| 810 |
void OPPROTO op_aas(void) |
| 811 |
{
|
| 812 |
int icarry;
|
| 813 |
int al, ah, af;
|
| 814 |
int eflags;
|
| 815 |
|
| 816 |
eflags = cc_table[CC_OP].compute_all(); |
| 817 |
af = eflags & CC_A; |
| 818 |
al = EAX & 0xff;
|
| 819 |
ah = (EAX >> 8) & 0xff; |
| 820 |
|
| 821 |
icarry = (al < 6);
|
| 822 |
if (((al & 0x0f) > 9 ) || af) { |
| 823 |
al = (al - 6) & 0x0f; |
| 824 |
ah = (ah - 1 - icarry) & 0xff; |
| 825 |
eflags |= CC_C | CC_A; |
| 826 |
} else {
|
| 827 |
eflags &= ~(CC_C | CC_A); |
| 828 |
al &= 0x0f;
|
| 829 |
} |
| 830 |
EAX = (EAX & ~0xffff) | al | (ah << 8); |
| 831 |
CC_SRC = eflags; |
| 832 |
} |
| 833 |
|
| 834 |
void OPPROTO op_daa(void) |
| 835 |
{
|
| 836 |
int al, af, cf;
|
| 837 |
int eflags;
|
| 838 |
|
| 839 |
eflags = cc_table[CC_OP].compute_all(); |
| 840 |
cf = eflags & CC_C; |
| 841 |
af = eflags & CC_A; |
| 842 |
al = EAX & 0xff;
|
| 843 |
|
| 844 |
eflags = 0;
|
| 845 |
if (((al & 0x0f) > 9 ) || af) { |
| 846 |
al = (al + 6) & 0xff; |
| 847 |
eflags |= CC_A; |
| 848 |
} |
| 849 |
if ((al > 0x9f) || cf) { |
| 850 |
al = (al + 0x60) & 0xff; |
| 851 |
eflags |= CC_C; |
| 852 |
} |
| 853 |
EAX = (EAX & ~0xff) | al;
|
| 854 |
/* well, speed is not an issue here, so we compute the flags by hand */
|
| 855 |
eflags |= (al == 0) << 6; /* zf */ |
| 856 |
eflags |= parity_table[al]; /* pf */
|
| 857 |
eflags |= (al & 0x80); /* sf */ |
| 858 |
CC_SRC = eflags; |
| 859 |
} |
| 860 |
|
| 861 |
void OPPROTO op_das(void) |
| 862 |
{
|
| 863 |
int al, al1, af, cf;
|
| 864 |
int eflags;
|
| 865 |
|
| 866 |
eflags = cc_table[CC_OP].compute_all(); |
| 867 |
cf = eflags & CC_C; |
| 868 |
af = eflags & CC_A; |
| 869 |
al = EAX & 0xff;
|
| 870 |
|
| 871 |
eflags = 0;
|
| 872 |
al1 = al; |
| 873 |
if (((al & 0x0f) > 9 ) || af) { |
| 874 |
eflags |= CC_A; |
| 875 |
if (al < 6 || cf) |
| 876 |
eflags |= CC_C; |
| 877 |
al = (al - 6) & 0xff; |
| 878 |
} |
| 879 |
if ((al1 > 0x99) || cf) { |
| 880 |
al = (al - 0x60) & 0xff; |
| 881 |
eflags |= CC_C; |
| 882 |
} |
| 883 |
EAX = (EAX & ~0xff) | al;
|
| 884 |
/* well, speed is not an issue here, so we compute the flags by hand */
|
| 885 |
eflags |= (al == 0) << 6; /* zf */ |
| 886 |
eflags |= parity_table[al]; /* pf */
|
| 887 |
eflags |= (al & 0x80); /* sf */ |
| 888 |
CC_SRC = eflags; |
| 889 |
} |
| 890 |
|
| 891 |
/* segment handling */
|
| 892 |
|
| 893 |
/* never use it with R_CS */
|
| 894 |
void OPPROTO op_movl_seg_T0(void) |
| 895 |
{
|
| 896 |
load_seg(PARAM1, T0 & 0xffff, PARAM2);
|
| 897 |
} |
| 898 |
|
| 899 |
/* faster VM86 version */
|
| 900 |
void OPPROTO op_movl_seg_T0_vm(void) |
| 901 |
{
|
| 902 |
int selector;
|
| 903 |
SegmentCache *sc; |
| 904 |
|
| 905 |
selector = T0 & 0xffff;
|
| 906 |
/* env->segs[] access */
|
| 907 |
sc = (SegmentCache *)((char *)env + PARAM1);
|
| 908 |
sc->selector = selector; |
| 909 |
sc->base = (void *)(selector << 4); |
| 910 |
} |
| 911 |
|
| 912 |
void OPPROTO op_movl_T0_seg(void) |
| 913 |
{
|
| 914 |
T0 = env->segs[PARAM1].selector; |
| 915 |
} |
| 916 |
|
| 917 |
void OPPROTO op_movl_A0_seg(void) |
| 918 |
{
|
| 919 |
A0 = *(unsigned long *)((char *)env + PARAM1); |
| 920 |
} |
| 921 |
|
| 922 |
void OPPROTO op_addl_A0_seg(void) |
| 923 |
{
|
| 924 |
A0 += *(unsigned long *)((char *)env + PARAM1); |
| 925 |
} |
| 926 |
|
| 927 |
void OPPROTO op_lsl(void) |
| 928 |
{
|
| 929 |
helper_lsl(); |
| 930 |
} |
| 931 |
|
| 932 |
void OPPROTO op_lar(void) |
| 933 |
{
|
| 934 |
helper_lar(); |
| 935 |
} |
| 936 |
|
| 937 |
/* T0: segment, T1:eip */
|
| 938 |
void OPPROTO op_ljmp_protected_T0_T1(void) |
| 939 |
{
|
| 940 |
helper_ljmp_protected_T0_T1(); |
| 941 |
} |
| 942 |
|
| 943 |
void OPPROTO op_lcall_real_T0_T1(void) |
| 944 |
{
|
| 945 |
helper_lcall_real_T0_T1(PARAM1, PARAM2); |
| 946 |
} |
| 947 |
|
| 948 |
void OPPROTO op_lcall_protected_T0_T1(void) |
| 949 |
{
|
| 950 |
helper_lcall_protected_T0_T1(PARAM1, PARAM2); |
| 951 |
} |
| 952 |
|
| 953 |
void OPPROTO op_iret_real(void) |
| 954 |
{
|
| 955 |
helper_iret_real(PARAM1); |
| 956 |
} |
| 957 |
|
| 958 |
void OPPROTO op_iret_protected(void) |
| 959 |
{
|
| 960 |
helper_iret_protected(PARAM1); |
| 961 |
} |
| 962 |
|
| 963 |
void OPPROTO op_lret_protected(void) |
| 964 |
{
|
| 965 |
helper_lret_protected(PARAM1, PARAM2); |
| 966 |
} |
| 967 |
|
| 968 |
void OPPROTO op_lldt_T0(void) |
| 969 |
{
|
| 970 |
helper_lldt_T0(); |
| 971 |
} |
| 972 |
|
| 973 |
void OPPROTO op_ltr_T0(void) |
| 974 |
{
|
| 975 |
helper_ltr_T0(); |
| 976 |
} |
| 977 |
|
| 978 |
/* CR registers access */
|
| 979 |
void OPPROTO op_movl_crN_T0(void) |
| 980 |
{
|
| 981 |
helper_movl_crN_T0(PARAM1); |
| 982 |
} |
| 983 |
|
| 984 |
/* DR registers access */
|
| 985 |
void OPPROTO op_movl_drN_T0(void) |
| 986 |
{
|
| 987 |
helper_movl_drN_T0(PARAM1); |
| 988 |
} |
| 989 |
|
| 990 |
void OPPROTO op_lmsw_T0(void) |
| 991 |
{
|
| 992 |
/* only 4 lower bits of CR0 are modified */
|
| 993 |
T0 = (env->cr[0] & ~0xf) | (T0 & 0xf); |
| 994 |
helper_movl_crN_T0(0);
|
| 995 |
} |
| 996 |
|
| 997 |
void OPPROTO op_invlpg_A0(void) |
| 998 |
{
|
| 999 |
helper_invlpg(A0); |
| 1000 |
} |
| 1001 |
|
| 1002 |
void OPPROTO op_movl_T0_env(void) |
| 1003 |
{
|
| 1004 |
T0 = *(uint32_t *)((char *)env + PARAM1);
|
| 1005 |
} |
| 1006 |
|
| 1007 |
void OPPROTO op_movl_env_T0(void) |
| 1008 |
{
|
| 1009 |
*(uint32_t *)((char *)env + PARAM1) = T0;
|
| 1010 |
} |
| 1011 |
|
| 1012 |
void OPPROTO op_movl_env_T1(void) |
| 1013 |
{
|
| 1014 |
*(uint32_t *)((char *)env + PARAM1) = T1;
|
| 1015 |
} |
| 1016 |
|
| 1017 |
void OPPROTO op_clts(void) |
| 1018 |
{
|
| 1019 |
env->cr[0] &= ~CR0_TS_MASK;
|
| 1020 |
} |
| 1021 |
|
| 1022 |
/* flags handling */
|
| 1023 |
|
| 1024 |
/* slow jumps cases : in order to avoid calling a function with a
|
| 1025 |
pointer (which can generate a stack frame on PowerPC), we use
|
| 1026 |
op_setcc to set T0 and then call op_jcc. */
|
| 1027 |
void OPPROTO op_jcc(void) |
| 1028 |
{
|
| 1029 |
if (T0)
|
| 1030 |
JUMP_TB(op_jcc, PARAM1, 0, PARAM2);
|
| 1031 |
else
|
| 1032 |
JUMP_TB(op_jcc, PARAM1, 1, PARAM3);
|
| 1033 |
FORCE_RET(); |
| 1034 |
} |
| 1035 |
|
| 1036 |
void OPPROTO op_jcc_im(void) |
| 1037 |
{
|
| 1038 |
if (T0)
|
| 1039 |
EIP = PARAM1; |
| 1040 |
else
|
| 1041 |
EIP = PARAM2; |
| 1042 |
FORCE_RET(); |
| 1043 |
} |
| 1044 |
|
| 1045 |
/* slow set cases (compute x86 flags) */
|
| 1046 |
void OPPROTO op_seto_T0_cc(void) |
| 1047 |
{
|
| 1048 |
int eflags;
|
| 1049 |
eflags = cc_table[CC_OP].compute_all(); |
| 1050 |
T0 = (eflags >> 11) & 1; |
| 1051 |
} |
| 1052 |
|
| 1053 |
void OPPROTO op_setb_T0_cc(void) |
| 1054 |
{
|
| 1055 |
T0 = cc_table[CC_OP].compute_c(); |
| 1056 |
} |
| 1057 |
|
| 1058 |
void OPPROTO op_setz_T0_cc(void) |
| 1059 |
{
|
| 1060 |
int eflags;
|
| 1061 |
eflags = cc_table[CC_OP].compute_all(); |
| 1062 |
T0 = (eflags >> 6) & 1; |
| 1063 |
} |
| 1064 |
|
| 1065 |
void OPPROTO op_setbe_T0_cc(void) |
| 1066 |
{
|
| 1067 |
int eflags;
|
| 1068 |
eflags = cc_table[CC_OP].compute_all(); |
| 1069 |
T0 = (eflags & (CC_Z | CC_C)) != 0;
|
| 1070 |
} |
| 1071 |
|
| 1072 |
void OPPROTO op_sets_T0_cc(void) |
| 1073 |
{
|
| 1074 |
int eflags;
|
| 1075 |
eflags = cc_table[CC_OP].compute_all(); |
| 1076 |
T0 = (eflags >> 7) & 1; |
| 1077 |
} |
| 1078 |
|
| 1079 |
void OPPROTO op_setp_T0_cc(void) |
| 1080 |
{
|
| 1081 |
int eflags;
|
| 1082 |
eflags = cc_table[CC_OP].compute_all(); |
| 1083 |
T0 = (eflags >> 2) & 1; |
| 1084 |
} |
| 1085 |
|
| 1086 |
void OPPROTO op_setl_T0_cc(void) |
| 1087 |
{
|
| 1088 |
int eflags;
|
| 1089 |
eflags = cc_table[CC_OP].compute_all(); |
| 1090 |
T0 = ((eflags ^ (eflags >> 4)) >> 7) & 1; |
| 1091 |
} |
| 1092 |
|
| 1093 |
void OPPROTO op_setle_T0_cc(void) |
| 1094 |
{
|
| 1095 |
int eflags;
|
| 1096 |
eflags = cc_table[CC_OP].compute_all(); |
| 1097 |
T0 = (((eflags ^ (eflags >> 4)) & 0x80) || (eflags & CC_Z)) != 0; |
| 1098 |
} |
| 1099 |
|
| 1100 |
void OPPROTO op_xor_T0_1(void) |
| 1101 |
{
|
| 1102 |
T0 ^= 1;
|
| 1103 |
} |
| 1104 |
|
| 1105 |
void OPPROTO op_set_cc_op(void) |
| 1106 |
{
|
| 1107 |
CC_OP = PARAM1; |
| 1108 |
} |
| 1109 |
|
| 1110 |
#define FL_UPDATE_MASK16 (FL_UPDATE_MASK32 & 0xffff) |
| 1111 |
|
| 1112 |
void OPPROTO op_movl_eflags_T0(void) |
| 1113 |
{
|
| 1114 |
int eflags;
|
| 1115 |
eflags = T0; |
| 1116 |
CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); |
| 1117 |
DF = 1 - (2 * ((eflags >> 10) & 1)); |
| 1118 |
/* we also update some system flags as in user mode */
|
| 1119 |
env->eflags = (env->eflags & ~FL_UPDATE_MASK32) | |
| 1120 |
(eflags & FL_UPDATE_MASK32); |
| 1121 |
} |
| 1122 |
|
| 1123 |
void OPPROTO op_movw_eflags_T0(void) |
| 1124 |
{
|
| 1125 |
int eflags;
|
| 1126 |
eflags = T0; |
| 1127 |
CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); |
| 1128 |
DF = 1 - (2 * ((eflags >> 10) & 1)); |
| 1129 |
/* we also update some system flags as in user mode */
|
| 1130 |
env->eflags = (env->eflags & ~FL_UPDATE_MASK16) | |
| 1131 |
(eflags & FL_UPDATE_MASK16); |
| 1132 |
} |
| 1133 |
|
| 1134 |
void OPPROTO op_movl_eflags_T0_cpl0(void) |
| 1135 |
{
|
| 1136 |
load_eflags(T0, FL_UPDATE_CPL0_MASK); |
| 1137 |
} |
| 1138 |
|
| 1139 |
void OPPROTO op_movw_eflags_T0_cpl0(void) |
| 1140 |
{
|
| 1141 |
load_eflags(T0, FL_UPDATE_CPL0_MASK & 0xffff);
|
| 1142 |
} |
| 1143 |
|
| 1144 |
#if 0
|
| 1145 |
/* vm86plus version */
|
| 1146 |
void OPPROTO op_movw_eflags_T0_vm(void)
|
| 1147 |
{
|
| 1148 |
int eflags;
|
| 1149 |
eflags = T0;
|
| 1150 |
CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
|
| 1151 |
DF = 1 - (2 * ((eflags >> 10) & 1));
|
| 1152 |
/* we also update some system flags as in user mode */
|
| 1153 |
env->eflags = (env->eflags & ~(FL_UPDATE_MASK16 | VIF_MASK)) |
|
| 1154 |
(eflags & FL_UPDATE_MASK16);
|
| 1155 |
if (eflags & IF_MASK) {
|
| 1156 |
env->eflags |= VIF_MASK;
|
| 1157 |
if (env->eflags & VIP_MASK) {
|
| 1158 |
EIP = PARAM1;
|
| 1159 |
raise_exception(EXCP0D_GPF);
|
| 1160 |
}
|
| 1161 |
}
|
| 1162 |
FORCE_RET();
|
| 1163 |
}
|
| 1164 |
|
| 1165 |
void OPPROTO op_movl_eflags_T0_vm(void)
|
| 1166 |
{
|
| 1167 |
int eflags;
|
| 1168 |
eflags = T0;
|
| 1169 |
CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
|
| 1170 |
DF = 1 - (2 * ((eflags >> 10) & 1));
|
| 1171 |
/* we also update some system flags as in user mode */
|
| 1172 |
env->eflags = (env->eflags & ~(FL_UPDATE_MASK32 | VIF_MASK)) |
|
| 1173 |
(eflags & FL_UPDATE_MASK32);
|
| 1174 |
if (eflags & IF_MASK) {
|
| 1175 |
env->eflags |= VIF_MASK;
|
| 1176 |
if (env->eflags & VIP_MASK) {
|
| 1177 |
EIP = PARAM1;
|
| 1178 |
raise_exception(EXCP0D_GPF);
|
| 1179 |
}
|
| 1180 |
}
|
| 1181 |
FORCE_RET();
|
| 1182 |
}
|
| 1183 |
#endif
|
| 1184 |
|
| 1185 |
/* XXX: compute only O flag */
|
| 1186 |
void OPPROTO op_movb_eflags_T0(void) |
| 1187 |
{
|
| 1188 |
int of;
|
| 1189 |
of = cc_table[CC_OP].compute_all() & CC_O; |
| 1190 |
CC_SRC = (T0 & (CC_S | CC_Z | CC_A | CC_P | CC_C)) | of; |
| 1191 |
} |
| 1192 |
|
| 1193 |
void OPPROTO op_movl_T0_eflags(void) |
| 1194 |
{
|
| 1195 |
int eflags;
|
| 1196 |
eflags = cc_table[CC_OP].compute_all(); |
| 1197 |
eflags |= (DF & DF_MASK); |
| 1198 |
eflags |= env->eflags & ~(VM_MASK | RF_MASK); |
| 1199 |
T0 = eflags; |
| 1200 |
} |
| 1201 |
|
| 1202 |
/* vm86plus version */
|
| 1203 |
#if 0
|
| 1204 |
void OPPROTO op_movl_T0_eflags_vm(void)
|
| 1205 |
{
|
| 1206 |
int eflags;
|
| 1207 |
eflags = cc_table[CC_OP].compute_all();
|
| 1208 |
eflags |= (DF & DF_MASK);
|
| 1209 |
eflags |= env->eflags & ~(VM_MASK | RF_MASK | IF_MASK);
|
| 1210 |
if (env->eflags & VIF_MASK)
|
| 1211 |
eflags |= IF_MASK;
|
| 1212 |
T0 = eflags;
|
| 1213 |
}
|
| 1214 |
#endif
|
| 1215 |
|
| 1216 |
void OPPROTO op_cld(void) |
| 1217 |
{
|
| 1218 |
DF = 1;
|
| 1219 |
} |
| 1220 |
|
| 1221 |
void OPPROTO op_std(void) |
| 1222 |
{
|
| 1223 |
DF = -1;
|
| 1224 |
} |
| 1225 |
|
| 1226 |
void OPPROTO op_clc(void) |
| 1227 |
{
|
| 1228 |
int eflags;
|
| 1229 |
eflags = cc_table[CC_OP].compute_all(); |
| 1230 |
eflags &= ~CC_C; |
| 1231 |
CC_SRC = eflags; |
| 1232 |
} |
| 1233 |
|
| 1234 |
void OPPROTO op_stc(void) |
| 1235 |
{
|
| 1236 |
int eflags;
|
| 1237 |
eflags = cc_table[CC_OP].compute_all(); |
| 1238 |
eflags |= CC_C; |
| 1239 |
CC_SRC = eflags; |
| 1240 |
} |
| 1241 |
|
| 1242 |
void OPPROTO op_cmc(void) |
| 1243 |
{
|
| 1244 |
int eflags;
|
| 1245 |
eflags = cc_table[CC_OP].compute_all(); |
| 1246 |
eflags ^= CC_C; |
| 1247 |
CC_SRC = eflags; |
| 1248 |
} |
| 1249 |
|
| 1250 |
void OPPROTO op_salc(void) |
| 1251 |
{
|
| 1252 |
int cf;
|
| 1253 |
cf = cc_table[CC_OP].compute_c(); |
| 1254 |
EAX = (EAX & ~0xff) | ((-cf) & 0xff); |
| 1255 |
} |
| 1256 |
|
| 1257 |
static int compute_all_eflags(void) |
| 1258 |
{
|
| 1259 |
return CC_SRC;
|
| 1260 |
} |
| 1261 |
|
| 1262 |
static int compute_c_eflags(void) |
| 1263 |
{
|
| 1264 |
return CC_SRC & CC_C;
|
| 1265 |
} |
| 1266 |
|
| 1267 |
static int compute_c_mul(void) |
| 1268 |
{
|
| 1269 |
int cf;
|
| 1270 |
cf = (CC_SRC != 0);
|
| 1271 |
return cf;
|
| 1272 |
} |
| 1273 |
|
| 1274 |
static int compute_all_mul(void) |
| 1275 |
{
|
| 1276 |
int cf, pf, af, zf, sf, of;
|
| 1277 |
cf = (CC_SRC != 0);
|
| 1278 |
pf = 0; /* undefined */ |
| 1279 |
af = 0; /* undefined */ |
| 1280 |
zf = 0; /* undefined */ |
| 1281 |
sf = 0; /* undefined */ |
| 1282 |
of = cf << 11;
|
| 1283 |
return cf | pf | af | zf | sf | of;
|
| 1284 |
} |
| 1285 |
|
| 1286 |
CCTable cc_table[CC_OP_NB] = {
|
| 1287 |
[CC_OP_DYNAMIC] = { /* should never happen */ },
|
| 1288 |
|
| 1289 |
[CC_OP_EFLAGS] = { compute_all_eflags, compute_c_eflags },
|
| 1290 |
|
| 1291 |
[CC_OP_MUL] = { compute_all_mul, compute_c_mul },
|
| 1292 |
|
| 1293 |
[CC_OP_ADDB] = { compute_all_addb, compute_c_addb },
|
| 1294 |
[CC_OP_ADDW] = { compute_all_addw, compute_c_addw },
|
| 1295 |
[CC_OP_ADDL] = { compute_all_addl, compute_c_addl },
|
| 1296 |
|
| 1297 |
[CC_OP_ADCB] = { compute_all_adcb, compute_c_adcb },
|
| 1298 |
[CC_OP_ADCW] = { compute_all_adcw, compute_c_adcw },
|
| 1299 |
[CC_OP_ADCL] = { compute_all_adcl, compute_c_adcl },
|
| 1300 |
|
| 1301 |
[CC_OP_SUBB] = { compute_all_subb, compute_c_subb },
|
| 1302 |
[CC_OP_SUBW] = { compute_all_subw, compute_c_subw },
|
| 1303 |
[CC_OP_SUBL] = { compute_all_subl, compute_c_subl },
|
| 1304 |
|
| 1305 |
[CC_OP_SBBB] = { compute_all_sbbb, compute_c_sbbb },
|
| 1306 |
[CC_OP_SBBW] = { compute_all_sbbw, compute_c_sbbw },
|
| 1307 |
[CC_OP_SBBL] = { compute_all_sbbl, compute_c_sbbl },
|
| 1308 |
|
| 1309 |
[CC_OP_LOGICB] = { compute_all_logicb, compute_c_logicb },
|
| 1310 |
[CC_OP_LOGICW] = { compute_all_logicw, compute_c_logicw },
|
| 1311 |
[CC_OP_LOGICL] = { compute_all_logicl, compute_c_logicl },
|
| 1312 |
|
| 1313 |
[CC_OP_INCB] = { compute_all_incb, compute_c_incl },
|
| 1314 |
[CC_OP_INCW] = { compute_all_incw, compute_c_incl },
|
| 1315 |
[CC_OP_INCL] = { compute_all_incl, compute_c_incl },
|
| 1316 |
|
| 1317 |
[CC_OP_DECB] = { compute_all_decb, compute_c_incl },
|
| 1318 |
[CC_OP_DECW] = { compute_all_decw, compute_c_incl },
|
| 1319 |
[CC_OP_DECL] = { compute_all_decl, compute_c_incl },
|
| 1320 |
|
| 1321 |
[CC_OP_SHLB] = { compute_all_shlb, compute_c_shlb },
|
| 1322 |
[CC_OP_SHLW] = { compute_all_shlw, compute_c_shlw },
|
| 1323 |
[CC_OP_SHLL] = { compute_all_shll, compute_c_shll },
|
| 1324 |
|
| 1325 |
[CC_OP_SARB] = { compute_all_sarb, compute_c_sarl },
|
| 1326 |
[CC_OP_SARW] = { compute_all_sarw, compute_c_sarl },
|
| 1327 |
[CC_OP_SARL] = { compute_all_sarl, compute_c_sarl },
|
| 1328 |
}; |
| 1329 |
|
| 1330 |
/* floating point support. Some of the code for complicated x87
|
| 1331 |
functions comes from the LGPL'ed x86 emulator found in the Willows
|
| 1332 |
TWIN windows emulator. */
|
| 1333 |
|
| 1334 |
#if defined(__powerpc__)
|
| 1335 |
extern CPU86_LDouble copysign(CPU86_LDouble, CPU86_LDouble);
|
| 1336 |
|
| 1337 |
/* correct (but slow) PowerPC rint() (glibc version is incorrect) */
|
| 1338 |
double qemu_rint(double x) |
| 1339 |
{
|
| 1340 |
double y = 4503599627370496.0; |
| 1341 |
if (fabs(x) >= y)
|
| 1342 |
return x;
|
| 1343 |
if (x < 0) |
| 1344 |
y = -y; |
| 1345 |
y = (x + y) - y; |
| 1346 |
if (y == 0.0) |
| 1347 |
y = copysign(y, x); |
| 1348 |
return y;
|
| 1349 |
} |
| 1350 |
|
| 1351 |
#define rint qemu_rint
|
| 1352 |
#endif
|
| 1353 |
|
| 1354 |
/* fp load FT0 */
|
| 1355 |
|
| 1356 |
void OPPROTO op_flds_FT0_A0(void) |
| 1357 |
{
|
| 1358 |
#ifdef USE_FP_CONVERT
|
| 1359 |
FP_CONVERT.i32 = ldl((void *)A0);
|
| 1360 |
FT0 = FP_CONVERT.f; |
| 1361 |
#else
|
| 1362 |
FT0 = ldfl((void *)A0);
|
| 1363 |
#endif
|
| 1364 |
} |
| 1365 |
|
| 1366 |
void OPPROTO op_fldl_FT0_A0(void) |
| 1367 |
{
|
| 1368 |
#ifdef USE_FP_CONVERT
|
| 1369 |
FP_CONVERT.i64 = ldq((void *)A0);
|
| 1370 |
FT0 = FP_CONVERT.d; |
| 1371 |
#else
|
| 1372 |
FT0 = ldfq((void *)A0);
|
| 1373 |
#endif
|
| 1374 |
} |
| 1375 |
|
| 1376 |
/* helpers are needed to avoid static constant reference. XXX: find a better way */
|
| 1377 |
#ifdef USE_INT_TO_FLOAT_HELPERS
|
| 1378 |
|
| 1379 |
void helper_fild_FT0_A0(void) |
| 1380 |
{
|
| 1381 |
FT0 = (CPU86_LDouble)ldsw((void *)A0);
|
| 1382 |
} |
| 1383 |
|
| 1384 |
void helper_fildl_FT0_A0(void) |
| 1385 |
{
|
| 1386 |
FT0 = (CPU86_LDouble)((int32_t)ldl((void *)A0));
|
| 1387 |
} |
| 1388 |
|
| 1389 |
void helper_fildll_FT0_A0(void) |
| 1390 |
{
|
| 1391 |
FT0 = (CPU86_LDouble)((int64_t)ldq((void *)A0));
|
| 1392 |
} |
| 1393 |
|
| 1394 |
void OPPROTO op_fild_FT0_A0(void) |
| 1395 |
{
|
| 1396 |
helper_fild_FT0_A0(); |
| 1397 |
} |
| 1398 |
|
| 1399 |
void OPPROTO op_fildl_FT0_A0(void) |
| 1400 |
{
|
| 1401 |
helper_fildl_FT0_A0(); |
| 1402 |
} |
| 1403 |
|
| 1404 |
void OPPROTO op_fildll_FT0_A0(void) |
| 1405 |
{
|
| 1406 |
helper_fildll_FT0_A0(); |
| 1407 |
} |
| 1408 |
|
| 1409 |
#else
|
| 1410 |
|
| 1411 |
void OPPROTO op_fild_FT0_A0(void) |
| 1412 |
{
|
| 1413 |
#ifdef USE_FP_CONVERT
|
| 1414 |
FP_CONVERT.i32 = ldsw((void *)A0);
|
| 1415 |
FT0 = (CPU86_LDouble)FP_CONVERT.i32; |
| 1416 |
#else
|
| 1417 |
FT0 = (CPU86_LDouble)ldsw((void *)A0);
|
| 1418 |
#endif
|
| 1419 |
} |
| 1420 |
|
| 1421 |
void OPPROTO op_fildl_FT0_A0(void) |
| 1422 |
{
|
| 1423 |
#ifdef USE_FP_CONVERT
|
| 1424 |
FP_CONVERT.i32 = (int32_t) ldl((void *)A0);
|
| 1425 |
FT0 = (CPU86_LDouble)FP_CONVERT.i32; |
| 1426 |
#else
|
| 1427 |
FT0 = (CPU86_LDouble)((int32_t)ldl((void *)A0));
|
| 1428 |
#endif
|
| 1429 |
} |
| 1430 |
|
| 1431 |
void OPPROTO op_fildll_FT0_A0(void) |
| 1432 |
{
|
| 1433 |
#ifdef USE_FP_CONVERT
|
| 1434 |
FP_CONVERT.i64 = (int64_t) ldq((void *)A0);
|
| 1435 |
FT0 = (CPU86_LDouble)FP_CONVERT.i64; |
| 1436 |
#else
|
| 1437 |
FT0 = (CPU86_LDouble)((int64_t)ldq((void *)A0));
|
| 1438 |
#endif
|
| 1439 |
} |
| 1440 |
#endif
|
| 1441 |
|
| 1442 |
/* fp load ST0 */
|
| 1443 |
|
| 1444 |
void OPPROTO op_flds_ST0_A0(void) |
| 1445 |
{
|
| 1446 |
int new_fpstt;
|
| 1447 |
new_fpstt = (env->fpstt - 1) & 7; |
| 1448 |
#ifdef USE_FP_CONVERT
|
| 1449 |
FP_CONVERT.i32 = ldl((void *)A0);
|
| 1450 |
env->fpregs[new_fpstt] = FP_CONVERT.f; |
| 1451 |
#else
|
| 1452 |
env->fpregs[new_fpstt] = ldfl((void *)A0);
|
| 1453 |
#endif
|
| 1454 |
env->fpstt = new_fpstt; |
| 1455 |
env->fptags[new_fpstt] = 0; /* validate stack entry */ |
| 1456 |
} |
| 1457 |
|
| 1458 |
void OPPROTO op_fldl_ST0_A0(void) |
| 1459 |
{
|
| 1460 |
int new_fpstt;
|
| 1461 |
new_fpstt = (env->fpstt - 1) & 7; |
| 1462 |
#ifdef USE_FP_CONVERT
|
| 1463 |
FP_CONVERT.i64 = ldq((void *)A0);
|
| 1464 |
env->fpregs[new_fpstt] = FP_CONVERT.d; |
| 1465 |
#else
|
| 1466 |
env->fpregs[new_fpstt] = ldfq((void *)A0);
|
| 1467 |
#endif
|
| 1468 |
env->fpstt = new_fpstt; |
| 1469 |
env->fptags[new_fpstt] = 0; /* validate stack entry */ |
| 1470 |
} |
| 1471 |
|
| 1472 |
#ifdef USE_X86LDOUBLE
|
| 1473 |
void OPPROTO op_fldt_ST0_A0(void) |
| 1474 |
{
|
| 1475 |
int new_fpstt;
|
| 1476 |
new_fpstt = (env->fpstt - 1) & 7; |
| 1477 |
env->fpregs[new_fpstt] = *(long double *)A0; |
| 1478 |
env->fpstt = new_fpstt; |
| 1479 |
env->fptags[new_fpstt] = 0; /* validate stack entry */ |
| 1480 |
} |
| 1481 |
#else
|
| 1482 |
void OPPROTO op_fldt_ST0_A0(void) |
| 1483 |
{
|
| 1484 |
helper_fldt_ST0_A0(); |
| 1485 |
} |
| 1486 |
#endif
|
| 1487 |
|
| 1488 |
/* helpers are needed to avoid static constant reference. XXX: find a better way */
|
| 1489 |
#ifdef USE_INT_TO_FLOAT_HELPERS
|
| 1490 |
|
| 1491 |
void helper_fild_ST0_A0(void) |
| 1492 |
{
|
| 1493 |
int new_fpstt;
|
| 1494 |
new_fpstt = (env->fpstt - 1) & 7; |
| 1495 |
env->fpregs[new_fpstt] = (CPU86_LDouble)ldsw((void *)A0);
|
| 1496 |
env->fpstt = new_fpstt; |
| 1497 |
env->fptags[new_fpstt] = 0; /* validate stack entry */ |
| 1498 |
} |
| 1499 |
|
| 1500 |
void helper_fildl_ST0_A0(void) |
| 1501 |
{
|
| 1502 |
int new_fpstt;
|
| 1503 |
new_fpstt = (env->fpstt - 1) & 7; |
| 1504 |
env->fpregs[new_fpstt] = (CPU86_LDouble)((int32_t)ldl((void *)A0));
|
| 1505 |
env->fpstt = new_fpstt; |
| 1506 |
env->fptags[new_fpstt] = 0; /* validate stack entry */ |
| 1507 |
} |
| 1508 |
|
| 1509 |
void helper_fildll_ST0_A0(void) |
| 1510 |
{
|
| 1511 |
int new_fpstt;
|
| 1512 |
new_fpstt = (env->fpstt - 1) & 7; |
| 1513 |
env->fpregs[new_fpstt] = (CPU86_LDouble)((int64_t)ldq((void *)A0));
|
| 1514 |
env->fpstt = new_fpstt; |
| 1515 |
env->fptags[new_fpstt] = 0; /* validate stack entry */ |
| 1516 |
} |
| 1517 |
|
| 1518 |
void OPPROTO op_fild_ST0_A0(void) |
| 1519 |
{
|
| 1520 |
helper_fild_ST0_A0(); |
| 1521 |
} |
| 1522 |
|
| 1523 |
void OPPROTO op_fildl_ST0_A0(void) |
| 1524 |
{
|
| 1525 |
helper_fildl_ST0_A0(); |
| 1526 |
} |
| 1527 |
|
| 1528 |
void OPPROTO op_fildll_ST0_A0(void) |
| 1529 |
{
|
| 1530 |
helper_fildll_ST0_A0(); |
| 1531 |
} |
| 1532 |
|
| 1533 |
#else
|
| 1534 |
|
| 1535 |
void OPPROTO op_fild_ST0_A0(void) |
| 1536 |
{
|
| 1537 |
int new_fpstt;
|
| 1538 |
new_fpstt = (env->fpstt - 1) & 7; |
| 1539 |
#ifdef USE_FP_CONVERT
|
| 1540 |
FP_CONVERT.i32 = ldsw((void *)A0);
|
| 1541 |
env->fpregs[new_fpstt] = (CPU86_LDouble)FP_CONVERT.i32; |
| 1542 |
#else
|
| 1543 |
env->fpregs[new_fpstt] = (CPU86_LDouble)ldsw((void *)A0);
|
| 1544 |
#endif
|
| 1545 |
env->fpstt = new_fpstt; |
| 1546 |
env->fptags[new_fpstt] = 0; /* validate stack entry */ |
| 1547 |
} |
| 1548 |
|
| 1549 |
void OPPROTO op_fildl_ST0_A0(void) |
| 1550 |
{
|
| 1551 |
int new_fpstt;
|
| 1552 |
new_fpstt = (env->fpstt - 1) & 7; |
| 1553 |
#ifdef USE_FP_CONVERT
|
| 1554 |
FP_CONVERT.i32 = (int32_t) ldl((void *)A0);
|
| 1555 |
env->fpregs[new_fpstt] = (CPU86_LDouble)FP_CONVERT.i32; |
| 1556 |
#else
|
| 1557 |
env->fpregs[new_fpstt] = (CPU86_LDouble)((int32_t)ldl((void *)A0));
|
| 1558 |
#endif
|
| 1559 |
env->fpstt = new_fpstt; |
| 1560 |
env->fptags[new_fpstt] = 0; /* validate stack entry */ |
| 1561 |
} |
| 1562 |
|
| 1563 |
void OPPROTO op_fildll_ST0_A0(void) |
| 1564 |
{
|
| 1565 |
int new_fpstt;
|
| 1566 |
new_fpstt = (env->fpstt - 1) & 7; |
| 1567 |
#ifdef USE_FP_CONVERT
|
| 1568 |
FP_CONVERT.i64 = (int64_t) ldq((void *)A0);
|
| 1569 |
env->fpregs[new_fpstt] = (CPU86_LDouble)FP_CONVERT.i64; |
| 1570 |
#else
|
| 1571 |
env->fpregs[new_fpstt] = (CPU86_LDouble)((int64_t)ldq((void *)A0));
|
| 1572 |
#endif
|
| 1573 |
env->fpstt = new_fpstt; |
| 1574 |
env->fptags[new_fpstt] = 0; /* validate stack entry */ |
| 1575 |
} |
| 1576 |
|
| 1577 |
#endif
|
| 1578 |
|
| 1579 |
/* fp store */
|
| 1580 |
|
| 1581 |
void OPPROTO op_fsts_ST0_A0(void) |
| 1582 |
{
|
| 1583 |
#ifdef USE_FP_CONVERT
|
| 1584 |
FP_CONVERT.f = (float)ST0;
|
| 1585 |
stfl((void *)A0, FP_CONVERT.f);
|
| 1586 |
#else
|
| 1587 |
stfl((void *)A0, (float)ST0); |
| 1588 |
#endif
|
| 1589 |
} |
| 1590 |
|
| 1591 |
void OPPROTO op_fstl_ST0_A0(void) |
| 1592 |
{
|
| 1593 |
stfq((void *)A0, (double)ST0); |
| 1594 |
} |
| 1595 |
|
| 1596 |
#ifdef USE_X86LDOUBLE
|
| 1597 |
void OPPROTO op_fstt_ST0_A0(void) |
| 1598 |
{
|
| 1599 |
*(long double *)A0 = ST0; |
| 1600 |
} |
| 1601 |
#else
|
| 1602 |
void OPPROTO op_fstt_ST0_A0(void) |
| 1603 |
{
|
| 1604 |
helper_fstt_ST0_A0(); |
| 1605 |
} |
| 1606 |
#endif
|
| 1607 |
|
| 1608 |
void OPPROTO op_fist_ST0_A0(void) |
| 1609 |
{
|
| 1610 |
#if defined(__sparc__) && !defined(__sparc_v9__)
|
| 1611 |
register CPU86_LDouble d asm("o0"); |
| 1612 |
#else
|
| 1613 |
CPU86_LDouble d; |
| 1614 |
#endif
|
| 1615 |
int val;
|
| 1616 |
|
| 1617 |
d = ST0; |
| 1618 |
val = lrint(d); |
| 1619 |
if (val != (int16_t)val)
|
| 1620 |
val = -32768;
|
| 1621 |
stw((void *)A0, val);
|
| 1622 |
} |
| 1623 |
|
| 1624 |
void OPPROTO op_fistl_ST0_A0(void) |
| 1625 |
{
|
| 1626 |
#if defined(__sparc__) && !defined(__sparc_v9__)
|
| 1627 |
register CPU86_LDouble d asm("o0"); |
| 1628 |
#else
|
| 1629 |
CPU86_LDouble d; |
| 1630 |
#endif
|
| 1631 |
int val;
|
| 1632 |
|
| 1633 |
d = ST0; |
| 1634 |
val = lrint(d); |
| 1635 |
stl((void *)A0, val);
|
| 1636 |
} |
| 1637 |
|
| 1638 |
void OPPROTO op_fistll_ST0_A0(void) |
| 1639 |
{
|
| 1640 |
#if defined(__sparc__) && !defined(__sparc_v9__)
|
| 1641 |
register CPU86_LDouble d asm("o0"); |
| 1642 |
#else
|
| 1643 |
CPU86_LDouble d; |
| 1644 |
#endif
|
| 1645 |
int64_t val; |
| 1646 |
|
| 1647 |
d = ST0; |
| 1648 |
val = llrint(d); |
| 1649 |
stq((void *)A0, val);
|
| 1650 |
} |
| 1651 |
|
| 1652 |
void OPPROTO op_fbld_ST0_A0(void) |
| 1653 |
{
|
| 1654 |
helper_fbld_ST0_A0(); |
| 1655 |
} |
| 1656 |
|
| 1657 |
void OPPROTO op_fbst_ST0_A0(void) |
| 1658 |
{
|
| 1659 |
helper_fbst_ST0_A0(); |
| 1660 |
} |
| 1661 |
|
| 1662 |
/* FPU move */
|
| 1663 |
|
| 1664 |
void OPPROTO op_fpush(void) |
| 1665 |
{
|
| 1666 |
fpush(); |
| 1667 |
} |
| 1668 |
|
| 1669 |
void OPPROTO op_fpop(void) |
| 1670 |
{
|
| 1671 |
fpop(); |
| 1672 |
} |
| 1673 |
|
| 1674 |
void OPPROTO op_fdecstp(void) |
| 1675 |
{
|
| 1676 |
env->fpstt = (env->fpstt - 1) & 7; |
| 1677 |
env->fpus &= (~0x4700);
|
| 1678 |
} |
| 1679 |
|
| 1680 |
void OPPROTO op_fincstp(void) |
| 1681 |
{
|
| 1682 |
env->fpstt = (env->fpstt + 1) & 7; |
| 1683 |
env->fpus &= (~0x4700);
|
| 1684 |
} |
| 1685 |
|
| 1686 |
void OPPROTO op_fmov_ST0_FT0(void) |
| 1687 |
{
|
| 1688 |
ST0 = FT0; |
| 1689 |
} |
| 1690 |
|
| 1691 |
void OPPROTO op_fmov_FT0_STN(void) |
| 1692 |
{
|
| 1693 |
FT0 = ST(PARAM1); |
| 1694 |
} |
| 1695 |
|
| 1696 |
void OPPROTO op_fmov_ST0_STN(void) |
| 1697 |
{
|
| 1698 |
ST0 = ST(PARAM1); |
| 1699 |
} |
| 1700 |
|
| 1701 |
void OPPROTO op_fmov_STN_ST0(void) |
| 1702 |
{
|
| 1703 |
ST(PARAM1) = ST0; |
| 1704 |
} |
| 1705 |
|
| 1706 |
void OPPROTO op_fxchg_ST0_STN(void) |
| 1707 |
{
|
| 1708 |
CPU86_LDouble tmp; |
| 1709 |
tmp = ST(PARAM1); |
| 1710 |
ST(PARAM1) = ST0; |
| 1711 |
ST0 = tmp; |
| 1712 |
} |
| 1713 |
|
| 1714 |
/* FPU operations */
|
| 1715 |
|
| 1716 |
/* XXX: handle nans */
|
| 1717 |
void OPPROTO op_fcom_ST0_FT0(void) |
| 1718 |
{
|
| 1719 |
env->fpus &= (~0x4500); /* (C3,C2,C0) <-- 000 */ |
| 1720 |
if (ST0 < FT0)
|
| 1721 |
env->fpus |= 0x100; /* (C3,C2,C0) <-- 001 */ |
| 1722 |
else if (ST0 == FT0) |
| 1723 |
env->fpus |= 0x4000; /* (C3,C2,C0) <-- 100 */ |
| 1724 |
FORCE_RET(); |
| 1725 |
} |
| 1726 |
|
| 1727 |
/* XXX: handle nans */
|
| 1728 |
void OPPROTO op_fucom_ST0_FT0(void) |
| 1729 |
{
|
| 1730 |
env->fpus &= (~0x4500); /* (C3,C2,C0) <-- 000 */ |
| 1731 |
if (ST0 < FT0)
|
| 1732 |
env->fpus |= 0x100; /* (C3,C2,C0) <-- 001 */ |
| 1733 |
else if (ST0 == FT0) |
| 1734 |
env->fpus |= 0x4000; /* (C3,C2,C0) <-- 100 */ |
| 1735 |
FORCE_RET(); |
| 1736 |
} |
| 1737 |
|
| 1738 |
/* XXX: handle nans */
|
| 1739 |
void OPPROTO op_fcomi_ST0_FT0(void) |
| 1740 |
{
|
| 1741 |
int eflags;
|
| 1742 |
eflags = cc_table[CC_OP].compute_all(); |
| 1743 |
eflags &= ~(CC_Z | CC_P | CC_C); |
| 1744 |
if (ST0 < FT0)
|
| 1745 |
eflags |= CC_C; |
| 1746 |
else if (ST0 == FT0) |
| 1747 |
eflags |= CC_Z; |
| 1748 |
CC_SRC = eflags; |
| 1749 |
FORCE_RET(); |
| 1750 |
} |
| 1751 |
|
| 1752 |
/* XXX: handle nans */
|
| 1753 |
void OPPROTO op_fucomi_ST0_FT0(void) |
| 1754 |
{
|
| 1755 |
int eflags;
|
| 1756 |
eflags = cc_table[CC_OP].compute_all(); |
| 1757 |
eflags &= ~(CC_Z | CC_P | CC_C); |
| 1758 |
if (ST0 < FT0)
|
| 1759 |
eflags |= CC_C; |
| 1760 |
else if (ST0 == FT0) |
| 1761 |
eflags |= CC_Z; |
| 1762 |
CC_SRC = eflags; |
| 1763 |
FORCE_RET(); |
| 1764 |
} |
| 1765 |
|
| 1766 |
void OPPROTO op_fadd_ST0_FT0(void) |
| 1767 |
{
|
| 1768 |
ST0 += FT0; |
| 1769 |
} |
| 1770 |
|
| 1771 |
void OPPROTO op_fmul_ST0_FT0(void) |
| 1772 |
{
|
| 1773 |
ST0 *= FT0; |
| 1774 |
} |
| 1775 |
|
| 1776 |
void OPPROTO op_fsub_ST0_FT0(void) |
| 1777 |
{
|
| 1778 |
ST0 -= FT0; |
| 1779 |
} |
| 1780 |
|
| 1781 |
void OPPROTO op_fsubr_ST0_FT0(void) |
| 1782 |
{
|
| 1783 |
ST0 = FT0 - ST0; |
| 1784 |
} |
| 1785 |
|
| 1786 |
void OPPROTO op_fdiv_ST0_FT0(void) |
| 1787 |
{
|
| 1788 |
ST0 /= FT0; |
| 1789 |
} |
| 1790 |
|
| 1791 |
void OPPROTO op_fdivr_ST0_FT0(void) |
| 1792 |
{
|
| 1793 |
ST0 = FT0 / ST0; |
| 1794 |
} |
| 1795 |
|
| 1796 |
/* fp operations between STN and ST0 */
|
| 1797 |
|
| 1798 |
void OPPROTO op_fadd_STN_ST0(void) |
| 1799 |
{
|
| 1800 |
ST(PARAM1) += ST0; |
| 1801 |
} |
| 1802 |
|
| 1803 |
void OPPROTO op_fmul_STN_ST0(void) |
| 1804 |
{
|
| 1805 |
ST(PARAM1) *= ST0; |
| 1806 |
} |
| 1807 |
|
| 1808 |
void OPPROTO op_fsub_STN_ST0(void) |
| 1809 |
{
|
| 1810 |
ST(PARAM1) -= ST0; |
| 1811 |
} |
| 1812 |
|
| 1813 |
void OPPROTO op_fsubr_STN_ST0(void) |
| 1814 |
{
|
| 1815 |
CPU86_LDouble *p; |
| 1816 |
p = &ST(PARAM1); |
| 1817 |
*p = ST0 - *p; |
| 1818 |
} |
| 1819 |
|
| 1820 |
void OPPROTO op_fdiv_STN_ST0(void) |
| 1821 |
{
|
| 1822 |
ST(PARAM1) /= ST0; |
| 1823 |
} |
| 1824 |
|
| 1825 |
void OPPROTO op_fdivr_STN_ST0(void) |
| 1826 |
{
|
| 1827 |
CPU86_LDouble *p; |
| 1828 |
p = &ST(PARAM1); |
| 1829 |
*p = ST0 / *p; |
| 1830 |
} |
| 1831 |
|
| 1832 |
/* misc FPU operations */
|
| 1833 |
void OPPROTO op_fchs_ST0(void) |
| 1834 |
{
|
| 1835 |
ST0 = -ST0; |
| 1836 |
} |
| 1837 |
|
| 1838 |
void OPPROTO op_fabs_ST0(void) |
| 1839 |
{
|
| 1840 |
ST0 = fabs(ST0); |
| 1841 |
} |
| 1842 |
|
| 1843 |
void OPPROTO op_fxam_ST0(void) |
| 1844 |
{
|
| 1845 |
helper_fxam_ST0(); |
| 1846 |
} |
| 1847 |
|
| 1848 |
void OPPROTO op_fld1_ST0(void) |
| 1849 |
{
|
| 1850 |
ST0 = f15rk[1];
|
| 1851 |
} |
| 1852 |
|
| 1853 |
void OPPROTO op_fldl2t_ST0(void) |
| 1854 |
{
|
| 1855 |
ST0 = f15rk[6];
|
| 1856 |
} |
| 1857 |
|
| 1858 |
void OPPROTO op_fldl2e_ST0(void) |
| 1859 |
{
|
| 1860 |
ST0 = f15rk[5];
|
| 1861 |
} |
| 1862 |
|
| 1863 |
void OPPROTO op_fldpi_ST0(void) |
| 1864 |
{
|
| 1865 |
ST0 = f15rk[2];
|
| 1866 |
} |
| 1867 |
|
| 1868 |
void OPPROTO op_fldlg2_ST0(void) |
| 1869 |
{
|
| 1870 |
ST0 = f15rk[3];
|
| 1871 |
} |
| 1872 |
|
| 1873 |
void OPPROTO op_fldln2_ST0(void) |
| 1874 |
{
|
| 1875 |
ST0 = f15rk[4];
|
| 1876 |
} |
| 1877 |
|
| 1878 |
void OPPROTO op_fldz_ST0(void) |
| 1879 |
{
|
| 1880 |
ST0 = f15rk[0];
|
| 1881 |
} |
| 1882 |
|
| 1883 |
void OPPROTO op_fldz_FT0(void) |
| 1884 |
{
|
| 1885 |
ST0 = f15rk[0];
|
| 1886 |
} |
| 1887 |
|
| 1888 |
/* associated heplers to reduce generated code length and to simplify
|
| 1889 |
relocation (FP constants are usually stored in .rodata section) */
|
| 1890 |
|
| 1891 |
void OPPROTO op_f2xm1(void) |
| 1892 |
{
|
| 1893 |
helper_f2xm1(); |
| 1894 |
} |
| 1895 |
|
| 1896 |
void OPPROTO op_fyl2x(void) |
| 1897 |
{
|
| 1898 |
helper_fyl2x(); |
| 1899 |
} |
| 1900 |
|
| 1901 |
void OPPROTO op_fptan(void) |
| 1902 |
{
|
| 1903 |
helper_fptan(); |
| 1904 |
} |
| 1905 |
|
| 1906 |
void OPPROTO op_fpatan(void) |
| 1907 |
{
|
| 1908 |
helper_fpatan(); |
| 1909 |
} |
| 1910 |
|
| 1911 |
void OPPROTO op_fxtract(void) |
| 1912 |
{
|
| 1913 |
helper_fxtract(); |
| 1914 |
} |
| 1915 |
|
| 1916 |
void OPPROTO op_fprem1(void) |
| 1917 |
{
|
| 1918 |
helper_fprem1(); |
| 1919 |
} |
| 1920 |
|
| 1921 |
|
| 1922 |
void OPPROTO op_fprem(void) |
| 1923 |
{
|
| 1924 |
helper_fprem(); |
| 1925 |
} |
| 1926 |
|
| 1927 |
void OPPROTO op_fyl2xp1(void) |
| 1928 |
{
|
| 1929 |
helper_fyl2xp1(); |
| 1930 |
} |
| 1931 |
|
| 1932 |
void OPPROTO op_fsqrt(void) |
| 1933 |
{
|
| 1934 |
helper_fsqrt(); |
| 1935 |
} |
| 1936 |
|
| 1937 |
void OPPROTO op_fsincos(void) |
| 1938 |
{
|
| 1939 |
helper_fsincos(); |
| 1940 |
} |
| 1941 |
|
| 1942 |
void OPPROTO op_frndint(void) |
| 1943 |
{
|
| 1944 |
helper_frndint(); |
| 1945 |
} |
| 1946 |
|
| 1947 |
void OPPROTO op_fscale(void) |
| 1948 |
{
|
| 1949 |
helper_fscale(); |
| 1950 |
} |
| 1951 |
|
| 1952 |
void OPPROTO op_fsin(void) |
| 1953 |
{
|
| 1954 |
helper_fsin(); |
| 1955 |
} |
| 1956 |
|
| 1957 |
void OPPROTO op_fcos(void) |
| 1958 |
{
|
| 1959 |
helper_fcos(); |
| 1960 |
} |
| 1961 |
|
| 1962 |
void OPPROTO op_fnstsw_A0(void) |
| 1963 |
{
|
| 1964 |
int fpus;
|
| 1965 |
fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11; |
| 1966 |
stw((void *)A0, fpus);
|
| 1967 |
} |
| 1968 |
|
| 1969 |
void OPPROTO op_fnstsw_EAX(void) |
| 1970 |
{
|
| 1971 |
int fpus;
|
| 1972 |
fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11; |
| 1973 |
EAX = (EAX & 0xffff0000) | fpus;
|
| 1974 |
} |
| 1975 |
|
| 1976 |
void OPPROTO op_fnstcw_A0(void) |
| 1977 |
{
|
| 1978 |
stw((void *)A0, env->fpuc);
|
| 1979 |
} |
| 1980 |
|
| 1981 |
void OPPROTO op_fldcw_A0(void) |
| 1982 |
{
|
| 1983 |
int rnd_type;
|
| 1984 |
env->fpuc = lduw((void *)A0);
|
| 1985 |
/* set rounding mode */
|
| 1986 |
switch(env->fpuc & RC_MASK) {
|
| 1987 |
default:
|
| 1988 |
case RC_NEAR:
|
| 1989 |
rnd_type = FE_TONEAREST; |
| 1990 |
break;
|
| 1991 |
case RC_DOWN:
|
| 1992 |
rnd_type = FE_DOWNWARD; |
| 1993 |
break;
|
| 1994 |
case RC_UP:
|
| 1995 |
rnd_type = FE_UPWARD; |
| 1996 |
break;
|
| 1997 |
case RC_CHOP:
|
| 1998 |
rnd_type = FE_TOWARDZERO; |
| 1999 |
break;
|
| 2000 |
} |
| 2001 |
fesetround(rnd_type); |
| 2002 |
} |
| 2003 |
|
| 2004 |
void OPPROTO op_fclex(void) |
| 2005 |
{
|
| 2006 |
env->fpus &= 0x7f00;
|
| 2007 |
} |
| 2008 |
|
| 2009 |
void OPPROTO op_fninit(void) |
| 2010 |
{
|
| 2011 |
env->fpus = 0;
|
| 2012 |
env->fpstt = 0;
|
| 2013 |
env->fpuc = 0x37f;
|
| 2014 |
env->fptags[0] = 1; |
| 2015 |
env->fptags[1] = 1; |
| 2016 |
env->fptags[2] = 1; |
| 2017 |
env->fptags[3] = 1; |
| 2018 |
env->fptags[4] = 1; |
| 2019 |
env->fptags[5] = 1; |
| 2020 |
env->fptags[6] = 1; |
| 2021 |
env->fptags[7] = 1; |
| 2022 |
} |
| 2023 |
|
| 2024 |
void OPPROTO op_fnstenv_A0(void) |
| 2025 |
{
|
| 2026 |
helper_fstenv((uint8_t *)A0, PARAM1); |
| 2027 |
} |
| 2028 |
|
| 2029 |
void OPPROTO op_fldenv_A0(void) |
| 2030 |
{
|
| 2031 |
helper_fldenv((uint8_t *)A0, PARAM1); |
| 2032 |
} |
| 2033 |
|
| 2034 |
void OPPROTO op_fnsave_A0(void) |
| 2035 |
{
|
| 2036 |
helper_fsave((uint8_t *)A0, PARAM1); |
| 2037 |
} |
| 2038 |
|
| 2039 |
void OPPROTO op_frstor_A0(void) |
| 2040 |
{
|
| 2041 |
helper_frstor((uint8_t *)A0, PARAM1); |
| 2042 |
} |
| 2043 |
|
| 2044 |
/* threading support */
|
| 2045 |
void OPPROTO op_lock(void) |
| 2046 |
{
|
| 2047 |
cpu_lock(); |
| 2048 |
} |
| 2049 |
|
| 2050 |
void OPPROTO op_unlock(void) |
| 2051 |
{
|
| 2052 |
cpu_unlock(); |
| 2053 |
} |
| 2054 |
|