2021-02-06 09:39:32 +01:00
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/*
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* Copyright (C) 2002-2011 The DOSBox Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; 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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/*
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The functions in this file are called almost exclusively by decoder.h,
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they translate an (or a set of) instruction(s) into hostspecific code
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and use the lower-level functions from decoder_basic.h and generating
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functions from risc_?.h
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Some complex instructions as well as most instructions that can modify
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the condition flags are translated by generating a call to a C-function
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(see operators.h). Parameter loading and result writeback is done
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according to the instruction.
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*/
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static void dyn_dop_ebgb(DualOps op) {
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dyn_get_modrm();
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if (decode.modrm.mod<3) {
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dyn_fill_ea(FC_ADDR);
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gen_protect_addr_reg();
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dyn_read_byte_canuseword(FC_ADDR,FC_OP1);
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MOV_REG_BYTE_TO_HOST_REG_LOW_CANUSEWORD(FC_OP2,decode.modrm.reg&3,(decode.modrm.reg>>2)&1);
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dyn_dop_byte_gencall(op);
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if ((op!=DOP_CMP) && (op!=DOP_TEST)) {
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gen_restore_addr_reg();
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dyn_write_byte(FC_ADDR,FC_RETOP);
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}
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} else {
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MOV_REG_BYTE_TO_HOST_REG_LOW_CANUSEWORD(FC_OP1,decode.modrm.rm&3,(decode.modrm.rm>>2)&1);
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MOV_REG_BYTE_TO_HOST_REG_LOW_CANUSEWORD(FC_OP2,decode.modrm.reg&3,(decode.modrm.reg>>2)&1);
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dyn_dop_byte_gencall(op);
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if ((op!=DOP_CMP) && (op!=DOP_TEST)) MOV_REG_BYTE_FROM_HOST_REG_LOW(FC_RETOP,decode.modrm.rm&3,(decode.modrm.rm>>2)&1);
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}
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}
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static void dyn_dop_ebgb_mov(void) {
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dyn_get_modrm();
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if (decode.modrm.mod<3) {
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dyn_fill_ea(FC_ADDR);
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MOV_REG_BYTE_TO_HOST_REG_LOW(FC_TMP_BA1,decode.modrm.reg&3,(decode.modrm.reg>>2)&1);
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dyn_write_byte(FC_ADDR,FC_TMP_BA1);
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} else {
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MOV_REG_BYTE_TO_HOST_REG_LOW(FC_TMP_BA1,decode.modrm.reg&3,(decode.modrm.reg>>2)&1);
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MOV_REG_BYTE_FROM_HOST_REG_LOW(FC_TMP_BA1,decode.modrm.rm&3,(decode.modrm.rm>>2)&1);
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}
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}
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static void dyn_dop_ebib_mov(void) {
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dyn_get_modrm();
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if (decode.modrm.mod<3) {
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dyn_fill_ea(FC_ADDR);
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gen_mov_byte_to_reg_low_imm(FC_TMP_BA1,decode_fetchb());
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dyn_write_byte(FC_ADDR,FC_TMP_BA1);
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} else {
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gen_mov_byte_to_reg_low_imm(FC_TMP_BA1,decode_fetchb());
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MOV_REG_BYTE_FROM_HOST_REG_LOW(FC_TMP_BA1,decode.modrm.rm&3,(decode.modrm.rm>>2)&1);
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}
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}
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static void dyn_dop_ebgb_xchg(void) {
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dyn_get_modrm();
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if (decode.modrm.mod<3) {
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dyn_fill_ea(FC_ADDR);
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gen_protect_addr_reg();
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dyn_read_byte(FC_ADDR,FC_TMP_BA1);
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MOV_REG_BYTE_TO_HOST_REG_LOW(FC_TMP_BA2,decode.modrm.reg&3,(decode.modrm.reg>>2)&1);
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MOV_REG_BYTE_FROM_HOST_REG_LOW(FC_TMP_BA1,decode.modrm.reg&3,(decode.modrm.reg>>2)&1);
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gen_restore_addr_reg();
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dyn_write_byte(FC_ADDR,FC_TMP_BA2);
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} else {
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MOV_REG_BYTE_TO_HOST_REG_LOW(FC_TMP_BA1,decode.modrm.rm&3,(decode.modrm.rm>>2)&1);
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MOV_REG_BYTE_TO_HOST_REG_LOW(FC_TMP_BA2,decode.modrm.reg&3,(decode.modrm.reg>>2)&1);
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MOV_REG_BYTE_FROM_HOST_REG_LOW(FC_TMP_BA1,decode.modrm.reg&3,(decode.modrm.reg>>2)&1);
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MOV_REG_BYTE_FROM_HOST_REG_LOW(FC_TMP_BA2,decode.modrm.rm&3,(decode.modrm.rm>>2)&1);
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}
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}
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static void dyn_dop_gbeb(DualOps op) {
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dyn_get_modrm();
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if (decode.modrm.mod<3) {
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dyn_fill_ea(FC_ADDR);
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dyn_read_byte_canuseword(FC_ADDR,FC_OP2);
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MOV_REG_BYTE_TO_HOST_REG_LOW_CANUSEWORD(FC_OP1,decode.modrm.reg&3,(decode.modrm.reg>>2)&1);
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dyn_dop_byte_gencall(op);
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if ((op!=DOP_CMP) && (op!=DOP_TEST)) MOV_REG_BYTE_FROM_HOST_REG_LOW(FC_RETOP,decode.modrm.reg&3,(decode.modrm.reg>>2)&1);
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} else {
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MOV_REG_BYTE_TO_HOST_REG_LOW_CANUSEWORD(FC_OP2,decode.modrm.rm&3,(decode.modrm.rm>>2)&1);
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MOV_REG_BYTE_TO_HOST_REG_LOW_CANUSEWORD(FC_OP1,decode.modrm.reg&3,(decode.modrm.reg>>2)&1);
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dyn_dop_byte_gencall(op);
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if ((op!=DOP_CMP) && (op!=DOP_TEST)) MOV_REG_BYTE_FROM_HOST_REG_LOW(FC_RETOP,decode.modrm.reg&3,(decode.modrm.reg>>2)&1);
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}
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}
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static void dyn_dop_gbeb_mov(void) {
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dyn_get_modrm();
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if (decode.modrm.mod<3) {
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dyn_fill_ea(FC_ADDR);
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dyn_read_byte(FC_ADDR,FC_TMP_BA1);
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MOV_REG_BYTE_FROM_HOST_REG_LOW(FC_TMP_BA1,decode.modrm.reg&3,(decode.modrm.reg>>2)&1);
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} else {
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MOV_REG_BYTE_TO_HOST_REG_LOW(FC_TMP_BA1,decode.modrm.rm&3,(decode.modrm.rm>>2)&1);
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MOV_REG_BYTE_FROM_HOST_REG_LOW(FC_TMP_BA1,decode.modrm.reg&3,(decode.modrm.reg>>2)&1);
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}
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}
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static void dyn_dop_evgv(DualOps op) {
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dyn_get_modrm();
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if (decode.modrm.mod<3) {
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dyn_fill_ea(FC_ADDR);
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dyn_read_word(FC_ADDR,FC_OP1,decode.big_op);
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gen_protect_addr_reg();
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MOV_REG_WORD_TO_HOST_REG(FC_OP2,decode.modrm.reg,decode.big_op);
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dyn_dop_word_gencall(op,decode.big_op);
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if ((op!=DOP_CMP) && (op!=DOP_TEST)) {
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gen_restore_addr_reg();
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dyn_write_word(FC_ADDR,FC_RETOP,decode.big_op);
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}
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} else {
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MOV_REG_WORD_TO_HOST_REG(FC_OP1,decode.modrm.rm,decode.big_op);
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MOV_REG_WORD_TO_HOST_REG(FC_OP2,decode.modrm.reg,decode.big_op);
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dyn_dop_word_gencall(op,decode.big_op);
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if ((op!=DOP_CMP) && (op!=DOP_TEST)) MOV_REG_WORD_FROM_HOST_REG(FC_RETOP,decode.modrm.rm,decode.big_op);
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}
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}
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static void dyn_dop_evgv_mov(void) {
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dyn_get_modrm();
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if (decode.modrm.mod<3) {
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dyn_fill_ea(FC_ADDR);
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MOV_REG_WORD_TO_HOST_REG(FC_OP1,decode.modrm.reg,decode.big_op);
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dyn_write_word(FC_ADDR,FC_OP1,decode.big_op);
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} else {
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MOV_REG_WORD_TO_HOST_REG(FC_OP1,decode.modrm.reg,decode.big_op);
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MOV_REG_WORD_FROM_HOST_REG(FC_OP1,decode.modrm.rm,decode.big_op);
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}
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}
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static void dyn_dop_eviv_mov(void) {
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dyn_get_modrm();
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if (decode.modrm.mod<3) {
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dyn_fill_ea(FC_ADDR);
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if (decode.big_op) gen_mov_dword_to_reg_imm(FC_OP1,decode_fetchd());
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else gen_mov_word_to_reg_imm(FC_OP1,decode_fetchw());
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dyn_write_word(FC_ADDR,FC_OP1,decode.big_op);
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} else {
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if (decode.big_op) gen_mov_dword_to_reg_imm(FC_OP1,decode_fetchd());
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else gen_mov_word_to_reg_imm(FC_OP1,decode_fetchw());
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MOV_REG_WORD_FROM_HOST_REG(FC_OP1,decode.modrm.rm,decode.big_op);
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}
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}
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static void dyn_dop_evgv_xchg(void) {
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dyn_get_modrm();
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if (decode.modrm.mod<3) {
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dyn_fill_ea(FC_ADDR);
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gen_protect_addr_reg();
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dyn_read_word(FC_ADDR,FC_OP1,decode.big_op);
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MOV_REG_WORD_TO_HOST_REG(FC_OP2,decode.modrm.reg,decode.big_op);
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gen_protect_reg(FC_OP1);
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gen_restore_addr_reg();
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dyn_write_word(FC_ADDR,FC_OP2,decode.big_op);
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gen_restore_reg(FC_OP1);
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MOV_REG_WORD_FROM_HOST_REG(FC_OP1,decode.modrm.reg,decode.big_op);
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} else {
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MOV_REG_WORD_TO_HOST_REG(FC_OP1,decode.modrm.rm,decode.big_op);
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MOV_REG_WORD_TO_HOST_REG(FC_OP2,decode.modrm.reg,decode.big_op);
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MOV_REG_WORD_FROM_HOST_REG(FC_OP1,decode.modrm.reg,decode.big_op);
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MOV_REG_WORD_FROM_HOST_REG(FC_OP2,decode.modrm.rm,decode.big_op);
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}
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}
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static void dyn_xchg_ax(Bit8u reg) {
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MOV_REG_WORD_TO_HOST_REG(FC_OP1,DRC_REG_EAX,decode.big_op);
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MOV_REG_WORD_TO_HOST_REG(FC_OP2,reg,decode.big_op);
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MOV_REG_WORD_FROM_HOST_REG(FC_OP1,reg,decode.big_op);
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MOV_REG_WORD_FROM_HOST_REG(FC_OP2,DRC_REG_EAX,decode.big_op);
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}
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static void dyn_dop_gvev(DualOps op) {
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dyn_get_modrm();
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if (decode.modrm.mod<3) {
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dyn_fill_ea(FC_ADDR);
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gen_protect_addr_reg();
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dyn_read_word(FC_ADDR,FC_OP2,decode.big_op);
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MOV_REG_WORD_TO_HOST_REG(FC_OP1,decode.modrm.reg,decode.big_op);
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dyn_dop_word_gencall(op,decode.big_op);
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if ((op!=DOP_CMP) && (op!=DOP_TEST)) {
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gen_restore_addr_reg();
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MOV_REG_WORD_FROM_HOST_REG(FC_RETOP,decode.modrm.reg,decode.big_op);
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}
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} else {
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MOV_REG_WORD_TO_HOST_REG(FC_OP2,decode.modrm.rm,decode.big_op);
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MOV_REG_WORD_TO_HOST_REG(FC_OP1,decode.modrm.reg,decode.big_op);
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dyn_dop_word_gencall(op,decode.big_op);
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if ((op!=DOP_CMP) && (op!=DOP_TEST)) MOV_REG_WORD_FROM_HOST_REG(FC_RETOP,decode.modrm.reg,decode.big_op);
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}
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}
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static void dyn_dop_gvev_mov(void) {
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dyn_get_modrm();
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if (decode.modrm.mod<3) {
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dyn_fill_ea(FC_ADDR);
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dyn_read_word(FC_ADDR,FC_OP1,decode.big_op);
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MOV_REG_WORD_FROM_HOST_REG(FC_OP1,decode.modrm.reg,decode.big_op);
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} else {
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MOV_REG_WORD_TO_HOST_REG(FC_OP1,decode.modrm.rm,decode.big_op);
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MOV_REG_WORD_FROM_HOST_REG(FC_OP1,decode.modrm.reg,decode.big_op);
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}
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}
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static void dyn_dop_byte_imm(DualOps op,Bit8u reg,Bit8u idx) {
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MOV_REG_BYTE_TO_HOST_REG_LOW_CANUSEWORD(FC_OP1,reg,idx);
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gen_mov_byte_to_reg_low_imm_canuseword(FC_OP2,decode_fetchb());
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dyn_dop_byte_gencall(op);
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if ((op!=DOP_CMP) && (op!=DOP_TEST)) MOV_REG_BYTE_FROM_HOST_REG_LOW(FC_RETOP,reg,idx);
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}
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static void dyn_dop_byte_imm_mem(DualOps op,Bit8u reg,Bit8u idx) {
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MOV_REG_BYTE_TO_HOST_REG_LOW_CANUSEWORD(FC_OP1,reg,idx);
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Bitu val;
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if (decode_fetchb_imm(val)) {
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gen_mov_byte_to_reg_low_canuseword(FC_OP2,(void*)val);
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} else {
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gen_mov_byte_to_reg_low_imm_canuseword(FC_OP2,(Bit8u)val);
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}
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dyn_dop_byte_gencall(op);
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if ((op!=DOP_CMP) && (op!=DOP_TEST)) MOV_REG_BYTE_FROM_HOST_REG_LOW(FC_RETOP,reg,idx);
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}
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static void dyn_prep_word_imm(Bit8u reg) {
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Bitu val;
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if (decode.big_op) {
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if (decode_fetchd_imm(val)) {
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gen_mov_word_to_reg(FC_OP2,(void*)val,true);
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return;
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}
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} else {
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if (decode_fetchw_imm(val)) {
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gen_mov_word_to_reg(FC_OP2,(void*)val,false);
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return;
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}
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}
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if (decode.big_op) gen_mov_dword_to_reg_imm(FC_OP2,(Bit32u)val);
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else gen_mov_word_to_reg_imm(FC_OP2,(Bit16u)val);
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}
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static void dyn_dop_word_imm(DualOps op,Bit8u reg) {
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MOV_REG_WORD_TO_HOST_REG(FC_OP1,reg,decode.big_op);
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dyn_prep_word_imm(reg);
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dyn_dop_word_gencall(op,decode.big_op);
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if ((op!=DOP_CMP) && (op!=DOP_TEST)) MOV_REG_WORD_FROM_HOST_REG(FC_RETOP,reg,decode.big_op);
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}
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static void dyn_dop_word_imm_old(DualOps op,Bit8u reg,Bitu imm) {
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MOV_REG_WORD_TO_HOST_REG(FC_OP1,reg,decode.big_op);
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if (decode.big_op) gen_mov_dword_to_reg_imm(FC_OP2,(Bit32u)imm);
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else gen_mov_word_to_reg_imm(FC_OP2,(Bit16u)imm);
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dyn_dop_word_gencall(op,decode.big_op);
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if ((op!=DOP_CMP) && (op!=DOP_TEST)) MOV_REG_WORD_FROM_HOST_REG(FC_RETOP,reg,decode.big_op);
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}
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static void dyn_mov_byte_imm(Bit8u reg,Bit8u idx,Bit8u imm) {
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gen_mov_byte_to_reg_low_imm(FC_TMP_BA1,imm);
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|
|
MOV_REG_BYTE_FROM_HOST_REG_LOW(FC_TMP_BA1,reg,idx);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_mov_word_imm(Bit8u reg) {
|
|
|
|
Bitu val;
|
|
|
|
if (decode.big_op) {
|
|
|
|
if (decode_fetchd_imm(val)) {
|
|
|
|
gen_mov_word_to_reg(FC_OP1,(void*)val,true);
|
|
|
|
MOV_REG_WORD32_FROM_HOST_REG(FC_OP1,reg);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
if (decode_fetchw_imm(val)) {
|
|
|
|
gen_mov_word_to_reg(FC_OP1,(void*)val,false);
|
|
|
|
MOV_REG_WORD16_FROM_HOST_REG(FC_OP1,reg);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (decode.big_op) gen_mov_dword_to_reg_imm(FC_OP1,(Bit32u)val);
|
|
|
|
else gen_mov_word_to_reg_imm(FC_OP1,(Bit16u)val);
|
|
|
|
MOV_REG_WORD_FROM_HOST_REG(FC_OP1,reg,decode.big_op);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void dyn_sop_word(SingleOps op,Bit8u reg) {
|
|
|
|
MOV_REG_WORD_TO_HOST_REG(FC_OP1,reg,decode.big_op);
|
|
|
|
dyn_sop_word_gencall(op,decode.big_op);
|
|
|
|
MOV_REG_WORD_FROM_HOST_REG(FC_RETOP,reg,decode.big_op);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void dyn_mov_byte_al_direct(Bitu imm) {
|
|
|
|
MOV_SEG_PHYS_TO_HOST_REG(FC_ADDR,(decode.seg_prefix_used ? decode.seg_prefix : DRC_SEG_DS));
|
|
|
|
gen_add_imm(FC_ADDR,imm);
|
|
|
|
dyn_read_byte(FC_ADDR,FC_TMP_BA1);
|
|
|
|
MOV_REG_BYTE_FROM_HOST_REG_LOW(FC_TMP_BA1,DRC_REG_EAX,0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_mov_byte_ax_direct(Bitu imm) {
|
|
|
|
MOV_SEG_PHYS_TO_HOST_REG(FC_ADDR,(decode.seg_prefix_used ? decode.seg_prefix : DRC_SEG_DS));
|
|
|
|
gen_add_imm(FC_ADDR,imm);
|
|
|
|
dyn_read_word(FC_ADDR,FC_OP1,decode.big_op);
|
|
|
|
MOV_REG_WORD_FROM_HOST_REG(FC_OP1,DRC_REG_EAX,decode.big_op);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_mov_byte_direct_al() {
|
|
|
|
MOV_SEG_PHYS_TO_HOST_REG(FC_ADDR,(decode.seg_prefix_used ? decode.seg_prefix : DRC_SEG_DS));
|
|
|
|
if (decode.big_addr) {
|
|
|
|
Bitu val;
|
|
|
|
if (decode_fetchd_imm(val)) {
|
|
|
|
gen_add(FC_ADDR,(void*)val);
|
|
|
|
} else {
|
|
|
|
gen_add_imm(FC_ADDR,(Bit32u)val);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
gen_add_imm(FC_ADDR,decode_fetchw());
|
|
|
|
}
|
|
|
|
MOV_REG_BYTE_TO_HOST_REG_LOW(FC_TMP_BA1,DRC_REG_EAX,0);
|
|
|
|
dyn_write_byte(FC_ADDR,FC_TMP_BA1);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_mov_byte_direct_ax(Bitu imm) {
|
|
|
|
MOV_SEG_PHYS_TO_HOST_REG(FC_ADDR,(decode.seg_prefix_used ? decode.seg_prefix : DRC_SEG_DS));
|
|
|
|
gen_add_imm(FC_ADDR,imm);
|
|
|
|
MOV_REG_WORD_TO_HOST_REG(FC_OP1,DRC_REG_EAX,decode.big_op);
|
|
|
|
dyn_write_word(FC_ADDR,FC_OP1,decode.big_op);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void dyn_movx_ev_gb(bool sign) {
|
|
|
|
dyn_get_modrm();
|
|
|
|
if (decode.modrm.mod<3) {
|
|
|
|
dyn_fill_ea(FC_ADDR);
|
|
|
|
dyn_read_byte(FC_ADDR,FC_TMP_BA1);
|
|
|
|
gen_extend_byte(sign,FC_TMP_BA1);
|
|
|
|
MOV_REG_WORD_FROM_HOST_REG(FC_TMP_BA1,decode.modrm.reg,decode.big_op);
|
|
|
|
} else {
|
|
|
|
MOV_REG_BYTE_TO_HOST_REG_LOW(FC_TMP_BA1,decode.modrm.rm&3,(decode.modrm.rm>>2)&1);
|
|
|
|
gen_extend_byte(sign,FC_TMP_BA1);
|
|
|
|
MOV_REG_WORD_FROM_HOST_REG(FC_TMP_BA1,decode.modrm.reg,decode.big_op);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_movx_ev_gw(bool sign) {
|
|
|
|
dyn_get_modrm();
|
|
|
|
if (decode.modrm.mod<3) {
|
|
|
|
dyn_fill_ea(FC_ADDR);
|
|
|
|
dyn_read_word(FC_ADDR,FC_OP1,false);
|
|
|
|
gen_extend_word(sign,FC_OP1);
|
|
|
|
MOV_REG_WORD_FROM_HOST_REG(FC_OP1,decode.modrm.reg,decode.big_op);
|
|
|
|
} else {
|
|
|
|
MOV_REG_WORD16_TO_HOST_REG(FC_OP1,decode.modrm.rm);
|
|
|
|
gen_extend_word(sign,FC_OP1);
|
|
|
|
MOV_REG_WORD_FROM_HOST_REG(FC_OP1,decode.modrm.reg,decode.big_op);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void dyn_mov_ev_seg(void) {
|
|
|
|
dyn_get_modrm();
|
|
|
|
MOV_SEG_VAL_TO_HOST_REG(FC_OP1,decode.modrm.reg);
|
|
|
|
if (decode.modrm.mod<3) {
|
|
|
|
dyn_fill_ea(FC_ADDR);
|
|
|
|
dyn_write_word(FC_ADDR,FC_OP1,false);
|
|
|
|
} else {
|
|
|
|
if (decode.big_op) gen_extend_word(false,FC_OP1);
|
|
|
|
MOV_REG_WORD_FROM_HOST_REG(FC_OP1,decode.modrm.rm,decode.big_op);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void dyn_lea(void) {
|
|
|
|
dyn_get_modrm();
|
|
|
|
dyn_fill_ea(FC_ADDR,false);
|
|
|
|
MOV_REG_WORD_FROM_HOST_REG(FC_ADDR,decode.modrm.reg,decode.big_op);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void dyn_push_seg(Bit8u seg) {
|
|
|
|
MOV_SEG_VAL_TO_HOST_REG(FC_OP1,seg);
|
|
|
|
if (decode.big_op) {
|
|
|
|
gen_extend_word(false,FC_OP1);
|
|
|
|
gen_call_function_raw((void*)&dynrec_push_dword);
|
|
|
|
} else {
|
|
|
|
gen_call_function_raw((void*)&dynrec_push_word);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_pop_seg(Bit8u seg) {
|
|
|
|
gen_call_function_II((void *)&CPU_PopSeg,seg,decode.big_op);
|
|
|
|
dyn_check_exception(FC_RETOP);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_push_reg(Bit8u reg) {
|
|
|
|
MOV_REG_WORD_TO_HOST_REG(FC_OP1,reg,decode.big_op);
|
|
|
|
if (decode.big_op) gen_call_function_raw((void*)&dynrec_push_dword);
|
|
|
|
else gen_call_function_raw((void*)&dynrec_push_word);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_pop_reg(Bit8u reg) {
|
|
|
|
if (decode.big_op) gen_call_function_raw((void*)&dynrec_pop_dword);
|
|
|
|
else gen_call_function_raw((void*)&dynrec_pop_word);
|
|
|
|
MOV_REG_WORD_FROM_HOST_REG(FC_RETOP,reg,decode.big_op);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_push_byte_imm(Bit8s imm) {
|
|
|
|
gen_mov_dword_to_reg_imm(FC_OP1,(Bit32u)imm);
|
|
|
|
if (decode.big_op) gen_call_function_raw((void*)&dynrec_push_dword);
|
|
|
|
else gen_call_function_raw((void*)&dynrec_push_word);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_push_word_imm(Bitu imm) {
|
|
|
|
if (decode.big_op) {
|
|
|
|
gen_mov_dword_to_reg_imm(FC_OP1,imm);
|
|
|
|
gen_call_function_raw((void*)&dynrec_push_dword);
|
|
|
|
} else {
|
|
|
|
gen_mov_word_to_reg_imm(FC_OP1,(Bit16u)imm);
|
|
|
|
gen_call_function_raw((void*)&dynrec_push_word);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_pop_ev(void) {
|
|
|
|
dyn_get_modrm();
|
|
|
|
if (decode.modrm.mod<3) {
|
|
|
|
/* dyn_fill_ea(FC_ADDR);
|
|
|
|
gen_protect_addr_reg();
|
|
|
|
dyn_read_word(FC_ADDR,FC_OP1,decode.big_op); // dummy read to trigger possible page faults */
|
|
|
|
if (decode.big_op) gen_call_function_raw((void*)&dynrec_pop_dword);
|
|
|
|
else gen_call_function_raw((void*)&dynrec_pop_word);
|
|
|
|
dyn_fill_ea(FC_ADDR);
|
|
|
|
// gen_restore_addr_reg();
|
|
|
|
dyn_write_word(FC_ADDR,FC_RETOP,decode.big_op);
|
|
|
|
} else {
|
|
|
|
if (decode.big_op) gen_call_function_raw((void*)&dynrec_pop_dword);
|
|
|
|
else gen_call_function_raw((void*)&dynrec_pop_word);
|
|
|
|
MOV_REG_WORD_FROM_HOST_REG(FC_RETOP,decode.modrm.rm,decode.big_op);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void dyn_segprefix(Bit8u seg) {
|
|
|
|
// if (GCC_UNLIKELY(decode.seg_prefix_used)) IllegalOptionDynrec("dyn_segprefix");
|
|
|
|
decode.seg_prefix=seg;
|
|
|
|
decode.seg_prefix_used=true;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_mov_seg_ev(void) {
|
|
|
|
dyn_get_modrm();
|
|
|
|
if (GCC_UNLIKELY(decode.modrm.reg==DRC_SEG_CS)) IllegalOptionDynrec("dyn_mov_seg_ev");
|
|
|
|
if (decode.modrm.mod<3) {
|
|
|
|
dyn_fill_ea(FC_ADDR);
|
|
|
|
dyn_read_word(FC_ADDR,FC_RETOP,false);
|
|
|
|
} else {
|
|
|
|
MOV_REG_WORD16_TO_HOST_REG(FC_RETOP,decode.modrm.rm);
|
|
|
|
}
|
|
|
|
gen_call_function_IR((void *)&CPU_SetSegGeneral,decode.modrm.reg,FC_RETOP);
|
|
|
|
dyn_check_exception(FC_RETOP);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_load_seg_off_ea(Bit8u seg) {
|
|
|
|
if (decode.modrm.mod<3) {
|
|
|
|
dyn_fill_ea(FC_ADDR);
|
|
|
|
gen_protect_addr_reg();
|
|
|
|
dyn_read_word(FC_ADDR,FC_OP1,decode.big_op);
|
|
|
|
gen_protect_reg(FC_OP1);
|
|
|
|
|
|
|
|
gen_restore_addr_reg();
|
|
|
|
gen_add_imm(FC_ADDR,decode.big_op ? 4:2);
|
|
|
|
dyn_read_word(FC_ADDR,FC_RETOP,false);
|
|
|
|
|
|
|
|
gen_call_function_IR((void *)&CPU_SetSegGeneral,seg,FC_RETOP);
|
|
|
|
dyn_check_exception(FC_RETOP);
|
|
|
|
|
|
|
|
gen_restore_reg(FC_OP1);
|
|
|
|
MOV_REG_WORD_FROM_HOST_REG(FC_OP1,decode.modrm.reg,decode.big_op);
|
|
|
|
} else {
|
|
|
|
IllegalOptionDynrec("dyn_load_seg_off_ea");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static void dyn_imul_gvev(Bitu immsize) {
|
|
|
|
dyn_get_modrm();
|
|
|
|
if (decode.modrm.mod<3) {
|
|
|
|
dyn_fill_ea(FC_ADDR);
|
|
|
|
dyn_read_word(FC_ADDR,FC_OP1,decode.big_op);
|
|
|
|
} else {
|
|
|
|
MOV_REG_WORD_TO_HOST_REG(FC_OP1,decode.modrm.rm,decode.big_op);
|
|
|
|
}
|
|
|
|
|
|
|
|
switch (immsize) {
|
|
|
|
case 0:
|
|
|
|
MOV_REG_WORD_TO_HOST_REG(FC_OP2,decode.modrm.reg,decode.big_op);
|
|
|
|
break;
|
|
|
|
case 1:
|
|
|
|
if (decode.big_op) gen_mov_dword_to_reg_imm(FC_OP2,(Bit8s)decode_fetchb());
|
|
|
|
else gen_mov_word_to_reg_imm(FC_OP2,(Bit8s)decode_fetchb());
|
|
|
|
break;
|
|
|
|
case 2:
|
|
|
|
if (decode.big_op) gen_mov_dword_to_reg_imm(FC_OP2,(Bit16s)decode_fetchw());
|
|
|
|
else gen_mov_word_to_reg_imm(FC_OP2,(Bit16s)decode_fetchw());
|
|
|
|
break;
|
|
|
|
case 4:
|
|
|
|
if (decode.big_op) gen_mov_dword_to_reg_imm(FC_OP2,(Bit32s)decode_fetchd());
|
|
|
|
else gen_mov_word_to_reg_imm(FC_OP2,(Bit16u)((Bit32s)decode_fetchd()));
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (decode.big_op) gen_call_function_raw((void*)dynrec_dimul_dword);
|
|
|
|
else gen_call_function_raw((void*)dynrec_dimul_word);
|
|
|
|
|
|
|
|
MOV_REG_WORD_FROM_HOST_REG(FC_RETOP,decode.modrm.reg,decode.big_op);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_dshift_ev_gv(bool left,bool immediate) {
|
|
|
|
dyn_get_modrm();
|
|
|
|
if (decode.modrm.mod<3) {
|
|
|
|
dyn_fill_ea(FC_ADDR);
|
|
|
|
gen_protect_addr_reg();
|
|
|
|
dyn_read_word(FC_ADDR,FC_OP1,decode.big_op);
|
|
|
|
} else {
|
|
|
|
MOV_REG_WORD_TO_HOST_REG(FC_OP1,decode.modrm.rm,decode.big_op);
|
|
|
|
}
|
|
|
|
MOV_REG_WORD_TO_HOST_REG(FC_OP2,decode.modrm.reg,decode.big_op);
|
|
|
|
if (immediate) gen_mov_byte_to_reg_low_imm(FC_OP3,decode_fetchb());
|
|
|
|
else MOV_REG_BYTE_TO_HOST_REG_LOW(FC_OP3,DRC_REG_ECX,0);
|
|
|
|
if (decode.big_op) dyn_dpshift_dword_gencall(left);
|
|
|
|
else dyn_dpshift_word_gencall(left);
|
|
|
|
|
|
|
|
if (decode.modrm.mod<3) {
|
|
|
|
gen_restore_addr_reg();
|
|
|
|
dyn_write_word(FC_ADDR,FC_RETOP,decode.big_op);
|
|
|
|
} else {
|
|
|
|
MOV_REG_WORD_FROM_HOST_REG(FC_RETOP,decode.modrm.rm,decode.big_op);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void dyn_grp1_eb_ib(void) {
|
|
|
|
dyn_get_modrm();
|
|
|
|
DualOps op=grp1_table[decode.modrm.reg];
|
|
|
|
if (decode.modrm.mod<3) {
|
|
|
|
dyn_fill_ea(FC_ADDR);
|
|
|
|
gen_protect_addr_reg();
|
|
|
|
dyn_read_byte_canuseword(FC_ADDR,FC_OP1);
|
|
|
|
gen_mov_byte_to_reg_low_imm_canuseword(FC_OP2,decode_fetchb());
|
|
|
|
dyn_dop_byte_gencall(op);
|
|
|
|
|
|
|
|
if ((op!=DOP_CMP) && (op!=DOP_TEST)) {
|
|
|
|
gen_restore_addr_reg();
|
|
|
|
dyn_write_byte(FC_ADDR,FC_RETOP);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
dyn_dop_byte_imm_mem(op,decode.modrm.rm&3,(decode.modrm.rm>>2)&1);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_grp1_ev_iv(bool withbyte) {
|
|
|
|
dyn_get_modrm();
|
|
|
|
DualOps op=grp1_table[decode.modrm.reg];
|
|
|
|
if (decode.modrm.mod<3) {
|
|
|
|
dyn_fill_ea(FC_ADDR);
|
|
|
|
gen_protect_addr_reg();
|
|
|
|
dyn_read_word(FC_ADDR,FC_OP1,decode.big_op);
|
|
|
|
|
|
|
|
if (!withbyte) {
|
|
|
|
dyn_prep_word_imm(FC_OP2);
|
|
|
|
} else {
|
|
|
|
Bits imm=(Bit8s)decode_fetchb();
|
|
|
|
if (decode.big_op) gen_mov_dword_to_reg_imm(FC_OP2,(Bit32u)imm);
|
|
|
|
else gen_mov_word_to_reg_imm(FC_OP2,(Bit16u)imm);
|
|
|
|
}
|
|
|
|
|
|
|
|
dyn_dop_word_gencall(op,decode.big_op);
|
|
|
|
|
|
|
|
if ((op!=DOP_CMP) && (op!=DOP_TEST)) {
|
|
|
|
gen_restore_addr_reg();
|
|
|
|
dyn_write_word(FC_ADDR,FC_RETOP,decode.big_op);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
if (!withbyte) {
|
|
|
|
dyn_dop_word_imm(op,decode.modrm.rm);
|
|
|
|
} else {
|
|
|
|
Bits imm=withbyte ? (Bit8s)decode_fetchb() : (decode.big_op ? decode_fetchd(): decode_fetchw());
|
|
|
|
dyn_dop_word_imm_old(op,decode.modrm.rm,imm);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void dyn_grp2_eb(grp2_types type) {
|
|
|
|
dyn_get_modrm();
|
|
|
|
if (decode.modrm.mod<3) {
|
|
|
|
dyn_fill_ea(FC_ADDR);
|
|
|
|
gen_protect_addr_reg();
|
|
|
|
dyn_read_byte_canuseword(FC_ADDR,FC_OP1);
|
|
|
|
} else {
|
|
|
|
MOV_REG_BYTE_TO_HOST_REG_LOW_CANUSEWORD(FC_OP1,decode.modrm.rm&3,(decode.modrm.rm>>2)&1);
|
|
|
|
}
|
|
|
|
switch (type) {
|
|
|
|
case grp2_1:
|
|
|
|
gen_mov_byte_to_reg_low_imm_canuseword(FC_OP2,1);
|
|
|
|
dyn_shift_byte_gencall((ShiftOps)decode.modrm.reg);
|
|
|
|
break;
|
|
|
|
case grp2_imm: {
|
|
|
|
Bit8u imm=decode_fetchb();
|
|
|
|
if (imm) {
|
|
|
|
gen_mov_byte_to_reg_low_imm_canuseword(FC_OP2,imm&0x1f);
|
|
|
|
dyn_shift_byte_gencall((ShiftOps)decode.modrm.reg);
|
|
|
|
} else return;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case grp2_cl:
|
|
|
|
MOV_REG_BYTE_TO_HOST_REG_LOW_CANUSEWORD(FC_OP2,DRC_REG_ECX,0);
|
|
|
|
gen_and_imm(FC_OP2,0x1f);
|
|
|
|
dyn_shift_byte_gencall((ShiftOps)decode.modrm.reg);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (decode.modrm.mod<3) {
|
|
|
|
gen_restore_addr_reg();
|
|
|
|
dyn_write_byte(FC_ADDR,FC_RETOP);
|
|
|
|
} else {
|
|
|
|
MOV_REG_BYTE_FROM_HOST_REG_LOW(FC_RETOP,decode.modrm.rm&3,(decode.modrm.rm>>2)&1);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_grp2_ev(grp2_types type) {
|
|
|
|
dyn_get_modrm();
|
|
|
|
if (decode.modrm.mod<3) {
|
|
|
|
dyn_fill_ea(FC_ADDR);
|
|
|
|
gen_protect_addr_reg();
|
|
|
|
dyn_read_word(FC_ADDR,FC_OP1,decode.big_op);
|
|
|
|
} else {
|
|
|
|
MOV_REG_WORD_TO_HOST_REG(FC_OP1,decode.modrm.rm,decode.big_op);
|
|
|
|
}
|
|
|
|
switch (type) {
|
|
|
|
case grp2_1:
|
|
|
|
gen_mov_byte_to_reg_low_imm_canuseword(FC_OP2,1);
|
|
|
|
dyn_shift_word_gencall((ShiftOps)decode.modrm.reg,decode.big_op);
|
|
|
|
break;
|
|
|
|
case grp2_imm: {
|
|
|
|
Bitu val;
|
|
|
|
if (decode_fetchb_imm(val)) {
|
|
|
|
gen_mov_byte_to_reg_low_canuseword(FC_OP2,(void*)val);
|
|
|
|
gen_and_imm(FC_OP2,0x1f);
|
|
|
|
dyn_shift_word_gencall((ShiftOps)decode.modrm.reg,decode.big_op);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
Bit8u imm=(Bit8u)val;
|
|
|
|
if (imm) {
|
|
|
|
gen_mov_byte_to_reg_low_imm_canuseword(FC_OP2,imm&0x1f);
|
|
|
|
dyn_shift_word_gencall((ShiftOps)decode.modrm.reg,decode.big_op);
|
|
|
|
} else return;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case grp2_cl:
|
|
|
|
MOV_REG_BYTE_TO_HOST_REG_LOW_CANUSEWORD(FC_OP2,DRC_REG_ECX,0);
|
|
|
|
gen_and_imm(FC_OP2,0x1f);
|
|
|
|
dyn_shift_word_gencall((ShiftOps)decode.modrm.reg,decode.big_op);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (decode.modrm.mod<3) {
|
|
|
|
gen_restore_addr_reg();
|
|
|
|
dyn_write_word(FC_ADDR,FC_RETOP,decode.big_op);
|
|
|
|
} else {
|
|
|
|
MOV_REG_WORD_FROM_HOST_REG(FC_RETOP,decode.modrm.rm,decode.big_op);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void dyn_grp3_eb(void) {
|
|
|
|
dyn_get_modrm();
|
|
|
|
if (decode.modrm.mod<3) {
|
|
|
|
dyn_fill_ea(FC_ADDR);
|
|
|
|
if ((decode.modrm.reg==2) || (decode.modrm.reg==3)) gen_protect_addr_reg();
|
|
|
|
dyn_read_byte_canuseword(FC_ADDR,FC_OP1);
|
|
|
|
} else {
|
|
|
|
MOV_REG_BYTE_TO_HOST_REG_LOW_CANUSEWORD(FC_OP1,decode.modrm.rm&3,(decode.modrm.rm>>2)&1);
|
|
|
|
}
|
|
|
|
switch (decode.modrm.reg) {
|
|
|
|
case 0x0: // test eb,ib
|
|
|
|
gen_mov_byte_to_reg_low_imm_canuseword(FC_OP2,decode_fetchb());
|
|
|
|
dyn_dop_byte_gencall(DOP_TEST);
|
|
|
|
return;
|
|
|
|
case 0x2: // NOT Eb
|
|
|
|
dyn_sop_byte_gencall(SOP_NOT);
|
|
|
|
break;
|
|
|
|
case 0x3: // NEG Eb
|
|
|
|
dyn_sop_byte_gencall(SOP_NEG);
|
|
|
|
break;
|
|
|
|
case 0x4: // mul Eb
|
|
|
|
gen_call_function_raw((void*)&dynrec_mul_byte);
|
|
|
|
return;
|
|
|
|
case 0x5: // imul Eb
|
|
|
|
gen_call_function_raw((void*)&dynrec_imul_byte);
|
|
|
|
return;
|
|
|
|
case 0x6: // div Eb
|
|
|
|
gen_call_function_raw((void*)&dynrec_div_byte);
|
|
|
|
dyn_check_exception(FC_RETOP);
|
|
|
|
return;
|
|
|
|
case 0x7: // idiv Eb
|
|
|
|
gen_call_function_raw((void*)&dynrec_idiv_byte);
|
|
|
|
dyn_check_exception(FC_RETOP);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
// Save the result if memory op
|
|
|
|
if (decode.modrm.mod<3) {
|
|
|
|
gen_restore_addr_reg();
|
|
|
|
dyn_write_byte(FC_ADDR,FC_RETOP);
|
|
|
|
} else {
|
|
|
|
MOV_REG_BYTE_FROM_HOST_REG_LOW(FC_RETOP,decode.modrm.rm&3,(decode.modrm.rm>>2)&1);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_grp3_ev(void) {
|
|
|
|
dyn_get_modrm();
|
|
|
|
if (decode.modrm.mod<3) {
|
|
|
|
dyn_fill_ea(FC_ADDR);
|
|
|
|
if ((decode.modrm.reg==2) || (decode.modrm.reg==3)) gen_protect_addr_reg();
|
|
|
|
dyn_read_word(FC_ADDR,FC_OP1,decode.big_op);
|
|
|
|
} else {
|
|
|
|
MOV_REG_WORD_TO_HOST_REG(FC_OP1,decode.modrm.rm,decode.big_op);
|
|
|
|
}
|
|
|
|
switch (decode.modrm.reg) {
|
|
|
|
case 0x0: // test ev,iv
|
|
|
|
if (decode.big_op) gen_mov_dword_to_reg_imm(FC_OP2,decode_fetchd());
|
|
|
|
else gen_mov_word_to_reg_imm(FC_OP2,decode_fetchw());
|
|
|
|
dyn_dop_word_gencall(DOP_TEST,decode.big_op);
|
|
|
|
return;
|
|
|
|
case 0x2: // NOT Ev
|
|
|
|
dyn_sop_word_gencall(SOP_NOT,decode.big_op);
|
|
|
|
break;
|
|
|
|
case 0x3: // NEG Eb
|
|
|
|
dyn_sop_word_gencall(SOP_NEG,decode.big_op);
|
|
|
|
break;
|
|
|
|
case 0x4: // mul Eb
|
|
|
|
if (decode.big_op) gen_call_function_raw((void*)&dynrec_mul_dword);
|
|
|
|
else gen_call_function_raw((void*)&dynrec_mul_word);
|
|
|
|
return;
|
|
|
|
case 0x5: // imul Eb
|
|
|
|
if (decode.big_op) gen_call_function_raw((void*)&dynrec_imul_dword);
|
|
|
|
else gen_call_function_raw((void*)&dynrec_imul_word);
|
|
|
|
return;
|
|
|
|
case 0x6: // div Eb
|
|
|
|
if (decode.big_op) gen_call_function_raw((void*)&dynrec_div_dword);
|
|
|
|
else gen_call_function_raw((void*)&dynrec_div_word);
|
|
|
|
dyn_check_exception(FC_RETOP);
|
|
|
|
return;
|
|
|
|
case 0x7: // idiv Eb
|
|
|
|
if (decode.big_op) gen_call_function_raw((void*)&dynrec_idiv_dword);
|
|
|
|
else gen_call_function_raw((void*)&dynrec_idiv_word);
|
|
|
|
dyn_check_exception(FC_RETOP);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
// Save the result if memory op
|
|
|
|
if (decode.modrm.mod<3) {
|
|
|
|
gen_restore_addr_reg();
|
|
|
|
dyn_write_word(FC_ADDR,FC_RETOP,decode.big_op);
|
|
|
|
} else {
|
|
|
|
MOV_REG_WORD_FROM_HOST_REG(FC_RETOP,decode.modrm.rm,decode.big_op);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static bool dyn_grp4_eb(void) {
|
|
|
|
dyn_get_modrm();
|
|
|
|
switch (decode.modrm.reg) {
|
|
|
|
case 0x0://INC Eb
|
|
|
|
case 0x1://DEC Eb
|
|
|
|
if (decode.modrm.mod<3) {
|
|
|
|
dyn_fill_ea(FC_ADDR);
|
|
|
|
gen_protect_addr_reg();
|
|
|
|
dyn_read_byte_canuseword(FC_ADDR,FC_OP1);
|
|
|
|
dyn_sop_byte_gencall(decode.modrm.reg==0 ? SOP_INC : SOP_DEC);
|
|
|
|
gen_restore_addr_reg();
|
|
|
|
dyn_write_byte(FC_ADDR,FC_RETOP);
|
|
|
|
} else {
|
|
|
|
MOV_REG_BYTE_TO_HOST_REG_LOW_CANUSEWORD(FC_OP1,decode.modrm.rm&3,(decode.modrm.rm>>2)&1);
|
|
|
|
dyn_sop_byte_gencall(decode.modrm.reg==0 ? SOP_INC : SOP_DEC);
|
|
|
|
MOV_REG_BYTE_FROM_HOST_REG_LOW(FC_RETOP,decode.modrm.rm&3,(decode.modrm.rm>>2)&1);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 0x7: //CALBACK Iw
|
|
|
|
gen_mov_direct_dword(&core_dynrec.callback,decode_fetchw());
|
|
|
|
dyn_set_eip_end();
|
|
|
|
dyn_reduce_cycles();
|
|
|
|
dyn_return(BR_CallBack);
|
|
|
|
dyn_closeblock();
|
|
|
|
return true;
|
|
|
|
default:
|
|
|
|
IllegalOptionDynrec("dyn_grp4_eb");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
static Bitu dyn_grp4_ev(void) {
|
|
|
|
dyn_get_modrm();
|
|
|
|
if (decode.modrm.mod<3) {
|
|
|
|
dyn_fill_ea(FC_ADDR);
|
|
|
|
if ((decode.modrm.reg<2) || (decode.modrm.reg==3) || (decode.modrm.reg==5)) gen_protect_addr_reg();
|
|
|
|
dyn_read_word(FC_ADDR,FC_OP1,decode.big_op);
|
|
|
|
} else {
|
|
|
|
MOV_REG_WORD_TO_HOST_REG(FC_OP1,decode.modrm.rm,decode.big_op);
|
|
|
|
}
|
|
|
|
switch (decode.modrm.reg) {
|
|
|
|
case 0x0://INC Ev
|
|
|
|
case 0x1://DEC Ev
|
|
|
|
dyn_sop_word_gencall(decode.modrm.reg==0 ? SOP_INC : SOP_DEC,decode.big_op);
|
|
|
|
if (decode.modrm.mod<3) {
|
|
|
|
gen_restore_addr_reg();
|
|
|
|
dyn_write_word(FC_ADDR,FC_RETOP,decode.big_op);
|
|
|
|
} else {
|
|
|
|
MOV_REG_WORD_FROM_HOST_REG(FC_RETOP,decode.modrm.rm,decode.big_op);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 0x2: // CALL Ev
|
|
|
|
gen_mov_regs(FC_ADDR,FC_OP1);
|
|
|
|
gen_protect_addr_reg();
|
|
|
|
gen_mov_word_to_reg(FC_OP1,decode.big_op?(void*)(®_eip):(void*)(®_ip),decode.big_op);
|
|
|
|
gen_add_imm(FC_OP1,(Bit32u)(decode.code-decode.code_start));
|
|
|
|
if (decode.big_op) gen_call_function_raw((void*)&dynrec_push_dword);
|
|
|
|
else gen_call_function_raw((void*)&dynrec_push_word);
|
|
|
|
|
|
|
|
gen_restore_addr_reg();
|
|
|
|
gen_mov_word_from_reg(FC_ADDR,decode.big_op?(void*)(®_eip):(void*)(®_ip),decode.big_op);
|
|
|
|
return 1;
|
|
|
|
case 0x4: // JMP Ev
|
|
|
|
gen_mov_word_from_reg(FC_OP1,decode.big_op?(void*)(®_eip):(void*)(®_ip),decode.big_op);
|
|
|
|
return 1;
|
|
|
|
case 0x3: // CALL Ep
|
|
|
|
case 0x5: // JMP Ep
|
|
|
|
if (!decode.big_op) gen_extend_word(false,FC_OP1);
|
|
|
|
if (decode.modrm.mod<3) gen_restore_addr_reg();
|
|
|
|
gen_protect_reg(FC_OP1);
|
|
|
|
gen_add_imm(FC_ADDR,decode.big_op?4:2);
|
|
|
|
dyn_read_word(FC_ADDR,FC_OP2,decode.big_op);
|
|
|
|
gen_extend_word(false,FC_OP2);
|
|
|
|
|
|
|
|
dyn_set_eip_last_end(FC_RETOP);
|
|
|
|
gen_restore_reg(FC_OP1,FC_ADDR);
|
|
|
|
gen_call_function_IRRR(decode.modrm.reg == 3 ? (void*)(&CPU_CALL) : (void*)(&CPU_JMP),
|
|
|
|
decode.big_op,FC_OP2,FC_ADDR,FC_RETOP);
|
|
|
|
return 1;
|
|
|
|
case 0x6: // PUSH Ev
|
|
|
|
if (decode.big_op) gen_call_function_raw((void*)&dynrec_push_dword);
|
|
|
|
else gen_call_function_raw((void*)&dynrec_push_word);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
// IllegalOptionDynrec("dyn_grp4_ev");
|
|
|
|
return 2;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static bool dyn_grp6(void) {
|
|
|
|
dyn_get_modrm();
|
|
|
|
switch (decode.modrm.reg) {
|
|
|
|
case 0x00: // SLDT
|
|
|
|
case 0x01: // STR
|
|
|
|
if (decode.modrm.reg==0) gen_call_function_raw((void*)CPU_SLDT);
|
|
|
|
else gen_call_function_raw((void*)CPU_STR);
|
|
|
|
if (decode.modrm.mod<3) {
|
|
|
|
dyn_fill_ea(FC_ADDR);
|
|
|
|
dyn_write_word(FC_ADDR,FC_RETOP,false);
|
|
|
|
} else {
|
|
|
|
MOV_REG_WORD16_FROM_HOST_REG(FC_RETOP,decode.modrm.rm);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 0x02: // LLDT
|
|
|
|
case 0x03: // LTR
|
|
|
|
case 0x04: // VERR
|
|
|
|
case 0x05: // VERW
|
|
|
|
if (decode.modrm.mod<3) {
|
|
|
|
dyn_fill_ea(FC_ADDR);
|
|
|
|
dyn_read_word(FC_ADDR,FC_RETOP,false);
|
|
|
|
} else {
|
|
|
|
MOV_REG_WORD16_TO_HOST_REG(FC_RETOP,decode.modrm.rm);
|
|
|
|
}
|
|
|
|
gen_extend_word(false,FC_RETOP);
|
|
|
|
switch (decode.modrm.reg) {
|
|
|
|
case 0x02: // LLDT
|
|
|
|
// if (cpu.cpl) return CPU_PrepareException(EXCEPTION_GP,0);
|
|
|
|
if (cpu.cpl) E_Exit("lldt cpl>0");
|
|
|
|
gen_call_function_R((void*)CPU_LLDT,FC_RETOP);
|
|
|
|
dyn_check_exception(FC_RETOP);
|
|
|
|
break;
|
|
|
|
case 0x03: // LTR
|
|
|
|
// if (cpu.cpl) return CPU_PrepareException(EXCEPTION_GP,0);
|
|
|
|
if (cpu.cpl) E_Exit("ltr cpl>0");
|
|
|
|
gen_call_function_R((void*)CPU_LTR,FC_RETOP);
|
|
|
|
dyn_check_exception(FC_RETOP);
|
|
|
|
break;
|
|
|
|
case 0x04: // VERR
|
|
|
|
gen_call_function_R((void*)CPU_VERR,FC_RETOP);
|
|
|
|
break;
|
|
|
|
case 0x05: // VERW
|
|
|
|
gen_call_function_R((void*)CPU_VERW,FC_RETOP);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
default: IllegalOptionDynrec("dyn_grp6");
|
|
|
|
}
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
static bool dyn_grp7(void) {
|
|
|
|
dyn_get_modrm();
|
|
|
|
if (decode.modrm.mod<3) {
|
|
|
|
switch (decode.modrm.reg) {
|
|
|
|
case 0x00: // SGDT
|
|
|
|
gen_call_function_raw((void*)CPU_SGDT_limit);
|
|
|
|
dyn_fill_ea(FC_ADDR);
|
|
|
|
gen_protect_addr_reg();
|
|
|
|
dyn_write_word(FC_ADDR,FC_RETOP,false);
|
|
|
|
gen_call_function_raw((void*)CPU_SGDT_base);
|
|
|
|
gen_restore_addr_reg();
|
|
|
|
gen_add_imm(FC_ADDR,2);
|
|
|
|
dyn_write_word(FC_ADDR,FC_RETOP,true);
|
|
|
|
break;
|
|
|
|
case 0x01: // SIDT
|
|
|
|
gen_call_function_raw((void*)CPU_SIDT_limit);
|
|
|
|
dyn_fill_ea(FC_ADDR);
|
|
|
|
gen_protect_addr_reg();
|
|
|
|
dyn_write_word(FC_ADDR,FC_RETOP,false);
|
|
|
|
gen_call_function_raw((void*)CPU_SIDT_base);
|
|
|
|
gen_restore_addr_reg();
|
|
|
|
gen_add_imm(FC_ADDR,2);
|
|
|
|
dyn_write_word(FC_ADDR,FC_RETOP,true);
|
|
|
|
break;
|
|
|
|
case 0x02: // LGDT
|
|
|
|
case 0x03: // LIDT
|
|
|
|
// if (cpu.pmode && cpu.cpl) EXCEPTION(EXCEPTION_GP);
|
|
|
|
if (cpu.pmode && cpu.cpl) IllegalOptionDynrec("lgdt nonpriviledged");
|
|
|
|
dyn_fill_ea(FC_ADDR);
|
|
|
|
gen_protect_addr_reg();
|
|
|
|
dyn_read_word(FC_ADDR,FC_OP1,false);
|
|
|
|
gen_extend_word(false,FC_OP1);
|
|
|
|
gen_protect_reg(FC_OP1);
|
|
|
|
|
|
|
|
gen_restore_addr_reg();
|
|
|
|
gen_add_imm(FC_ADDR,2);
|
|
|
|
dyn_read_word(FC_ADDR,FC_OP2,true);
|
|
|
|
if (!decode.big_op) gen_and_imm(FC_OP2,0xffffff);
|
|
|
|
|
|
|
|
gen_restore_reg(FC_OP1);
|
|
|
|
if (decode.modrm.reg==2) gen_call_function_RR((void*)CPU_LGDT,FC_OP1,FC_OP2);
|
|
|
|
else gen_call_function_RR((void*)CPU_LIDT,FC_OP1,FC_OP2);
|
|
|
|
break;
|
|
|
|
case 0x04: // SMSW
|
|
|
|
gen_call_function_raw((void*)CPU_SMSW);
|
|
|
|
dyn_fill_ea(FC_ADDR);
|
|
|
|
dyn_write_word(FC_ADDR,FC_RETOP,false);
|
|
|
|
break;
|
|
|
|
case 0x06: // LMSW
|
|
|
|
dyn_fill_ea(FC_ADDR);
|
|
|
|
dyn_read_word(FC_ADDR,FC_RETOP,false);
|
|
|
|
gen_call_function_R((void*)CPU_LMSW,FC_RETOP);
|
|
|
|
dyn_check_exception(FC_RETOP);
|
|
|
|
dyn_set_eip_end();
|
|
|
|
dyn_reduce_cycles();
|
|
|
|
dyn_return(BR_Normal);
|
|
|
|
dyn_closeblock();
|
|
|
|
return true;
|
|
|
|
case 0x07: // INVLPG
|
|
|
|
// if (cpu.pmode && cpu.cpl) EXCEPTION(EXCEPTION_GP);
|
|
|
|
if (cpu.pmode && cpu.cpl) IllegalOptionDynrec("invlpg nonpriviledged");
|
|
|
|
gen_call_function_raw((void*)PAGING_ClearTLB);
|
|
|
|
break;
|
|
|
|
default: IllegalOptionDynrec("dyn_grp7_1");
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
switch (decode.modrm.reg) {
|
|
|
|
case 0x04: // SMSW
|
|
|
|
gen_call_function_raw((void*)CPU_SMSW);
|
|
|
|
MOV_REG_WORD16_FROM_HOST_REG(FC_RETOP,decode.modrm.rm);
|
|
|
|
break;
|
|
|
|
case 0x06: // LMSW
|
|
|
|
MOV_REG_WORD16_TO_HOST_REG(FC_RETOP,decode.modrm.rm);
|
|
|
|
gen_call_function_R((void*)CPU_LMSW,FC_RETOP);
|
|
|
|
dyn_check_exception(FC_RETOP);
|
|
|
|
dyn_set_eip_end();
|
|
|
|
dyn_reduce_cycles();
|
|
|
|
dyn_return(BR_Normal);
|
|
|
|
dyn_closeblock();
|
|
|
|
return true;
|
|
|
|
default: IllegalOptionDynrec("dyn_grp7_2");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
static void dyn_larlsl(bool is_lar) {
|
|
|
|
dyn_get_modrm();
|
|
|
|
if (decode.modrm.mod<3) {
|
|
|
|
dyn_fill_ea(FC_ADDR);
|
|
|
|
dyn_read_word(FC_ADDR,FC_RETOP,false);
|
|
|
|
} else {
|
|
|
|
MOV_REG_WORD16_TO_HOST_REG(FC_RETOP,decode.modrm.rm);
|
|
|
|
}
|
|
|
|
gen_extend_word(false,FC_RETOP);
|
|
|
|
if (is_lar) gen_call_function((void*)CPU_LAR,"%R%A",FC_RETOP,(DRC_PTR_SIZE_IM)&core_dynrec.readdata);
|
|
|
|
else gen_call_function((void*)CPU_LSL,"%R%A",FC_RETOP,(DRC_PTR_SIZE_IM)&core_dynrec.readdata);
|
|
|
|
DRC_PTR_SIZE_IM brnz=gen_create_branch_on_nonzero(FC_RETOP,true);
|
|
|
|
gen_mov_word_to_reg(FC_OP2,&core_dynrec.readdata,true);
|
|
|
|
MOV_REG_WORD_FROM_HOST_REG(FC_OP2,decode.modrm.reg,decode.big_op);
|
|
|
|
gen_fill_branch(brnz);
|
|
|
|
}
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
|
|
static void dyn_mov_from_crx(void) {
|
|
|
|
dyn_get_modrm();
|
|
|
|
gen_call_function_IA((void*)CPU_READ_CRX,decode.modrm.reg,(DRC_PTR_SIZE_IM)&core_dynrec.readdata);
|
|
|
|
dyn_check_exception(FC_RETOP);
|
|
|
|
gen_mov_word_to_reg(FC_OP2,&core_dynrec.readdata,true);
|
|
|
|
MOV_REG_WORD32_FROM_HOST_REG(FC_OP2,decode.modrm.rm);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_mov_to_crx(void) {
|
|
|
|
dyn_get_modrm();
|
|
|
|
MOV_REG_WORD32_TO_HOST_REG(FC_RETOP,decode.modrm.rm);
|
|
|
|
gen_call_function_IR((void*)CPU_WRITE_CRX,decode.modrm.reg,FC_RETOP);
|
|
|
|
dyn_check_exception(FC_RETOP);
|
|
|
|
dyn_set_eip_end();
|
|
|
|
dyn_reduce_cycles();
|
|
|
|
dyn_return(BR_Normal);
|
|
|
|
dyn_closeblock();
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void dyn_cbw(void) {
|
|
|
|
if (decode.big_op) {
|
|
|
|
MOV_REG_WORD16_TO_HOST_REG(FC_OP1,DRC_REG_EAX);
|
|
|
|
gen_call_function_raw((void *)&dynrec_cwde);
|
|
|
|
MOV_REG_WORD32_FROM_HOST_REG(FC_RETOP,DRC_REG_EAX);
|
|
|
|
} else {
|
|
|
|
MOV_REG_BYTE_TO_HOST_REG_LOW_CANUSEWORD(FC_OP1,DRC_REG_EAX,0);
|
|
|
|
gen_call_function_raw((void *)&dynrec_cbw);
|
|
|
|
MOV_REG_WORD16_FROM_HOST_REG(FC_RETOP,DRC_REG_EAX);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_cwd(void) {
|
|
|
|
MOV_REG_WORD_TO_HOST_REG(FC_OP1,DRC_REG_EAX,decode.big_op);
|
|
|
|
if (decode.big_op) {
|
|
|
|
gen_call_function_raw((void *)&dynrec_cdq);
|
|
|
|
MOV_REG_WORD32_FROM_HOST_REG(FC_RETOP,DRC_REG_EDX);
|
|
|
|
} else {
|
|
|
|
gen_call_function_raw((void *)&dynrec_cwd);
|
|
|
|
MOV_REG_WORD16_FROM_HOST_REG(FC_RETOP,DRC_REG_EDX);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_sahf(void) {
|
|
|
|
MOV_REG_WORD16_TO_HOST_REG(FC_OP1,DRC_REG_EAX);
|
|
|
|
gen_call_function_raw((void *)&dynrec_sahf);
|
|
|
|
InvalidateFlags();
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void dyn_exit_link(Bits eip_change) {
|
|
|
|
gen_add_direct_word(®_eip,(decode.code-decode.code_start)+eip_change,decode.big_op);
|
|
|
|
dyn_reduce_cycles();
|
|
|
|
gen_jmp_ptr(&decode.block->link[0].to,offsetof(CacheBlockDynRec,cache.start));
|
|
|
|
dyn_closeblock();
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void dyn_branched_exit(BranchTypes btype,Bit32s eip_add) {
|
|
|
|
Bitu eip_base=decode.code-decode.code_start;
|
|
|
|
dyn_reduce_cycles();
|
|
|
|
|
|
|
|
dyn_branchflag_to_reg(btype);
|
|
|
|
DRC_PTR_SIZE_IM data=gen_create_branch_on_nonzero(FC_RETOP,true);
|
|
|
|
|
|
|
|
// Branch not taken
|
|
|
|
gen_add_direct_word(®_eip,eip_base,decode.big_op);
|
|
|
|
gen_jmp_ptr(&decode.block->link[0].to,offsetof(CacheBlockDynRec,cache.start));
|
|
|
|
gen_fill_branch(data);
|
|
|
|
|
|
|
|
// Branch taken
|
|
|
|
gen_add_direct_word(®_eip,eip_base+eip_add,decode.big_op);
|
|
|
|
gen_jmp_ptr(&decode.block->link[1].to,offsetof(CacheBlockDynRec,cache.start));
|
|
|
|
dyn_closeblock();
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
static void dyn_set_byte_on_condition(BranchTypes btype) {
|
|
|
|
dyn_get_modrm();
|
|
|
|
dyn_branchflag_to_reg(btype);
|
|
|
|
gen_and_imm(FC_RETOP,1);
|
|
|
|
if (decode.modrm.mod<3) {
|
|
|
|
dyn_fill_ea(FC_ADDR);
|
|
|
|
dyn_write_byte(FC_ADDR,FC_RETOP);
|
|
|
|
} else {
|
|
|
|
MOV_REG_BYTE_FROM_HOST_REG_LOW(FC_RETOP,decode.modrm.rm&3,(decode.modrm.rm>>2)&1);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
*/
|
|
|
|
|
|
|
|
static void dyn_loop(LoopTypes type) {
|
|
|
|
dyn_reduce_cycles();
|
|
|
|
Bits eip_add=(Bit8s)decode_fetchb();
|
|
|
|
Bitu eip_base=decode.code-decode.code_start;
|
|
|
|
DRC_PTR_SIZE_IM branch1=0;
|
|
|
|
DRC_PTR_SIZE_IM branch2=0;
|
|
|
|
switch (type) {
|
|
|
|
case LOOP_E:
|
|
|
|
dyn_branchflag_to_reg(BR_NZ);
|
|
|
|
branch1=gen_create_branch_on_nonzero(FC_RETOP,true);
|
|
|
|
break;
|
|
|
|
case LOOP_NE:
|
|
|
|
dyn_branchflag_to_reg(BR_Z);
|
|
|
|
branch1=gen_create_branch_on_nonzero(FC_RETOP,true);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
switch (type) {
|
|
|
|
case LOOP_E:
|
|
|
|
case LOOP_NE:
|
|
|
|
case LOOP_NONE:
|
|
|
|
MOV_REG_WORD_TO_HOST_REG(FC_OP1,DRC_REG_ECX,decode.big_addr);
|
|
|
|
gen_add_imm(FC_OP1,(Bit32u)(-1));
|
|
|
|
MOV_REG_WORD_FROM_HOST_REG(FC_OP1,DRC_REG_ECX,decode.big_addr);
|
|
|
|
branch2=gen_create_branch_on_zero(FC_OP1,decode.big_addr);
|
|
|
|
break;
|
|
|
|
case LOOP_JCXZ:
|
|
|
|
MOV_REG_WORD_TO_HOST_REG(FC_OP1,DRC_REG_ECX,decode.big_addr);
|
|
|
|
branch2=gen_create_branch_on_nonzero(FC_OP1,decode.big_addr);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
gen_add_direct_word(®_eip,eip_base+eip_add,true);
|
|
|
|
gen_jmp_ptr(&decode.block->link[0].to,offsetof(CacheBlockDynRec,cache.start));
|
|
|
|
if (branch1) {
|
|
|
|
gen_fill_branch(branch1);
|
|
|
|
MOV_REG_WORD_TO_HOST_REG(FC_OP1,DRC_REG_ECX,decode.big_addr);
|
|
|
|
gen_add_imm(FC_OP1,(Bit32u)(-1));
|
|
|
|
MOV_REG_WORD_FROM_HOST_REG(FC_OP1,DRC_REG_ECX,decode.big_addr);
|
|
|
|
}
|
|
|
|
// Branch taken
|
|
|
|
gen_fill_branch(branch2);
|
|
|
|
gen_add_direct_word(®_eip,eip_base,decode.big_op);
|
|
|
|
gen_jmp_ptr(&decode.block->link[1].to,offsetof(CacheBlockDynRec,cache.start));
|
|
|
|
dyn_closeblock();
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void dyn_ret_near(Bitu bytes) {
|
|
|
|
dyn_reduce_cycles();
|
|
|
|
|
|
|
|
if (decode.big_op) gen_call_function_raw((void*)&dynrec_pop_dword);
|
|
|
|
else {
|
|
|
|
gen_call_function_raw((void*)&dynrec_pop_word);
|
|
|
|
gen_extend_word(false,FC_RETOP);
|
|
|
|
}
|
|
|
|
gen_mov_word_from_reg(FC_RETOP,decode.big_op?(void*)(®_eip):(void*)(®_ip),true);
|
|
|
|
|
|
|
|
if (bytes) gen_add_direct_word(®_esp,bytes,true);
|
|
|
|
dyn_return(BR_Normal);
|
|
|
|
dyn_closeblock();
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_call_near_imm(void) {
|
|
|
|
Bits imm;
|
|
|
|
if (decode.big_op) imm=(Bit32s)decode_fetchd();
|
|
|
|
else imm=(Bit16s)decode_fetchw();
|
|
|
|
dyn_set_eip_end(FC_OP1);
|
|
|
|
if (decode.big_op) gen_call_function_raw((void*)&dynrec_push_dword);
|
|
|
|
else gen_call_function_raw((void*)&dynrec_push_word);
|
|
|
|
|
|
|
|
dyn_set_eip_end(FC_OP1,imm);
|
|
|
|
gen_mov_word_from_reg(FC_OP1,decode.big_op?(void*)(®_eip):(void*)(®_ip),decode.big_op);
|
|
|
|
|
|
|
|
dyn_reduce_cycles();
|
|
|
|
gen_jmp_ptr(&decode.block->link[0].to,offsetof(CacheBlockDynRec,cache.start));
|
|
|
|
dyn_closeblock();
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_ret_far(Bitu bytes) {
|
|
|
|
dyn_reduce_cycles();
|
|
|
|
dyn_set_eip_last_end(FC_RETOP);
|
|
|
|
gen_call_function_IIR((void*)&CPU_RET,decode.big_op,bytes,FC_RETOP);
|
|
|
|
dyn_return(BR_Normal);
|
|
|
|
dyn_closeblock();
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_call_far_imm(void) {
|
|
|
|
Bitu sel,off;
|
|
|
|
off=decode.big_op ? decode_fetchd() : decode_fetchw();
|
|
|
|
sel=decode_fetchw();
|
|
|
|
dyn_reduce_cycles();
|
|
|
|
dyn_set_eip_last_end(FC_RETOP);
|
|
|
|
gen_call_function_IIIR((void*)&CPU_CALL,decode.big_op,sel,off,FC_RETOP);
|
|
|
|
dyn_return(BR_Normal);
|
|
|
|
dyn_closeblock();
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_jmp_far_imm(void) {
|
|
|
|
Bitu sel,off;
|
|
|
|
off=decode.big_op ? decode_fetchd() : decode_fetchw();
|
|
|
|
sel=decode_fetchw();
|
|
|
|
dyn_reduce_cycles();
|
|
|
|
dyn_set_eip_last_end(FC_RETOP);
|
|
|
|
gen_call_function_IIIR((void*)&CPU_JMP,decode.big_op,sel,off,FC_RETOP);
|
|
|
|
dyn_return(BR_Normal);
|
|
|
|
dyn_closeblock();
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_iret(void) {
|
|
|
|
dyn_reduce_cycles();
|
|
|
|
dyn_set_eip_last_end(FC_RETOP);
|
|
|
|
gen_call_function_IR((void*)&CPU_IRET,decode.big_op,FC_RETOP);
|
|
|
|
dyn_return(BR_Iret);
|
|
|
|
dyn_closeblock();
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_interrupt(Bit8u num) {
|
|
|
|
dyn_reduce_cycles();
|
|
|
|
dyn_set_eip_last_end(FC_RETOP);
|
|
|
|
gen_call_function_IIR((void*)&CPU_Interrupt,num,CPU_INT_SOFTWARE,FC_RETOP);
|
|
|
|
dyn_return(BR_Normal);
|
|
|
|
dyn_closeblock();
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static void dyn_string(StringOps op) {
|
|
|
|
if (decode.rep) MOV_REG_WORD_TO_HOST_REG(FC_OP1,DRC_REG_ECX,decode.big_addr);
|
|
|
|
else gen_mov_dword_to_reg_imm(FC_OP1,1);
|
|
|
|
gen_mov_word_to_reg(FC_OP2,&cpu.direction,true);
|
|
|
|
Bit8u di_base_addr=decode.seg_prefix_used ? decode.seg_prefix : DRC_SEG_DS;
|
|
|
|
switch (op) {
|
|
|
|
case STR_MOVSB:
|
|
|
|
if (decode.big_addr) gen_call_function_mm((void*)&dynrec_movsb_dword,(Bitu)DRCD_SEG_PHYS(di_base_addr),(Bitu)DRCD_SEG_PHYS(DRC_SEG_ES));
|
|
|
|
else gen_call_function_mm((void*)&dynrec_movsb_word,(Bitu)DRCD_SEG_PHYS(di_base_addr),(Bitu)DRCD_SEG_PHYS(DRC_SEG_ES));
|
|
|
|
break;
|
|
|
|
case STR_MOVSW:
|
|
|
|
if (decode.big_addr) gen_call_function_mm((void*)&dynrec_movsw_dword,(Bitu)DRCD_SEG_PHYS(di_base_addr),(Bitu)DRCD_SEG_PHYS(DRC_SEG_ES));
|
|
|
|
else gen_call_function_mm((void*)&dynrec_movsw_word,(Bitu)DRCD_SEG_PHYS(di_base_addr),(Bitu)DRCD_SEG_PHYS(DRC_SEG_ES));
|
|
|
|
break;
|
|
|
|
case STR_MOVSD:
|
|
|
|
if (decode.big_addr) gen_call_function_mm((void*)&dynrec_movsd_dword,(Bitu)DRCD_SEG_PHYS(di_base_addr),(Bitu)DRCD_SEG_PHYS(DRC_SEG_ES));
|
|
|
|
else gen_call_function_mm((void*)&dynrec_movsd_word,(Bitu)DRCD_SEG_PHYS(di_base_addr),(Bitu)DRCD_SEG_PHYS(DRC_SEG_ES));
|
|
|
|
break;
|
|
|
|
|
|
|
|
case STR_LODSB:
|
|
|
|
if (decode.big_addr) gen_call_function_m((void*)&dynrec_lodsb_dword,(Bitu)DRCD_SEG_PHYS(di_base_addr));
|
|
|
|
else gen_call_function_m((void*)&dynrec_lodsb_word,(Bitu)DRCD_SEG_PHYS(di_base_addr));
|
|
|
|
break;
|
|
|
|
case STR_LODSW:
|
|
|
|
if (decode.big_addr) gen_call_function_m((void*)&dynrec_lodsw_dword,(Bitu)DRCD_SEG_PHYS(di_base_addr));
|
|
|
|
else gen_call_function_m((void*)&dynrec_lodsw_word,(Bitu)DRCD_SEG_PHYS(di_base_addr));
|
|
|
|
break;
|
|
|
|
case STR_LODSD:
|
|
|
|
if (decode.big_addr) gen_call_function_m((void*)&dynrec_lodsd_dword,(Bitu)DRCD_SEG_PHYS(di_base_addr));
|
|
|
|
else gen_call_function_m((void*)&dynrec_lodsd_word,(Bitu)DRCD_SEG_PHYS(di_base_addr));
|
|
|
|
break;
|
|
|
|
|
|
|
|
case STR_STOSB:
|
|
|
|
if (decode.big_addr) gen_call_function_m((void*)&dynrec_stosb_dword,(Bitu)DRCD_SEG_PHYS(DRC_SEG_ES));
|
|
|
|
else gen_call_function_m((void*)&dynrec_stosb_word,(Bitu)DRCD_SEG_PHYS(DRC_SEG_ES));
|
|
|
|
break;
|
|
|
|
case STR_STOSW:
|
|
|
|
if (decode.big_addr) gen_call_function_m((void*)&dynrec_stosw_dword,(Bitu)DRCD_SEG_PHYS(DRC_SEG_ES));
|
|
|
|
else gen_call_function_m((void*)&dynrec_stosw_word,(Bitu)DRCD_SEG_PHYS(DRC_SEG_ES));
|
|
|
|
break;
|
|
|
|
case STR_STOSD:
|
|
|
|
if (decode.big_addr) gen_call_function_m((void*)&dynrec_stosd_dword,(Bitu)DRCD_SEG_PHYS(DRC_SEG_ES));
|
|
|
|
else gen_call_function_m((void*)&dynrec_stosd_word,(Bitu)DRCD_SEG_PHYS(DRC_SEG_ES));
|
|
|
|
break;
|
|
|
|
default: IllegalOptionDynrec("dyn_string");
|
|
|
|
}
|
|
|
|
if (decode.rep) MOV_REG_WORD_FROM_HOST_REG(FC_RETOP,DRC_REG_ECX,decode.big_addr);
|
|
|
|
|
|
|
|
if (op<STR_SCASB) {
|
|
|
|
// those string operations are allowed for premature termination
|
|
|
|
// when not enough cycles left
|
|
|
|
if (!decode.big_addr) gen_extend_word(false,FC_RETOP);
|
|
|
|
save_info_dynrec[used_save_info_dynrec].branch_pos=gen_create_branch_long_nonzero(FC_RETOP,true);
|
|
|
|
save_info_dynrec[used_save_info_dynrec].eip_change=decode.op_start-decode.code_start;
|
|
|
|
save_info_dynrec[used_save_info_dynrec].type=string_break;
|
|
|
|
used_save_info_dynrec++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void dyn_read_port_byte_direct(Bit8u port) {
|
|
|
|
dyn_add_iocheck_var(port,1);
|
|
|
|
gen_call_function_I((void*)&IO_ReadB,port);
|
|
|
|
MOV_REG_BYTE_FROM_HOST_REG_LOW(FC_RETOP,DRC_REG_EAX,0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_read_port_word_direct(Bit8u port) {
|
|
|
|
dyn_add_iocheck_var(port,decode.big_op?4:2);
|
|
|
|
gen_call_function_I(decode.big_op?((void*)&IO_ReadD):((void*)&IO_ReadW),port);
|
|
|
|
MOV_REG_WORD_FROM_HOST_REG(FC_RETOP,DRC_REG_EAX,decode.big_op);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_write_port_byte_direct(Bit8u port) {
|
|
|
|
dyn_add_iocheck_var(port,1);
|
|
|
|
MOV_REG_BYTE_TO_HOST_REG_LOW(FC_RETOP,DRC_REG_EAX,0);
|
|
|
|
gen_extend_byte(false,FC_RETOP);
|
|
|
|
gen_call_function_IR((void*)&IO_WriteB,port,FC_RETOP);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_write_port_word_direct(Bit8u port) {
|
|
|
|
dyn_add_iocheck_var(port,decode.big_op?4:2);
|
|
|
|
MOV_REG_WORD_TO_HOST_REG(FC_RETOP,DRC_REG_EAX,decode.big_op);
|
|
|
|
if (!decode.big_op) gen_extend_word(false,FC_RETOP);
|
|
|
|
gen_call_function_IR(decode.big_op?((void*)&IO_WriteD):((void*)&IO_WriteW),port,FC_RETOP);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void dyn_read_port_byte(void) {
|
|
|
|
MOV_REG_WORD16_TO_HOST_REG(FC_ADDR,DRC_REG_EDX);
|
|
|
|
gen_extend_word(false,FC_ADDR);
|
|
|
|
gen_protect_addr_reg();
|
|
|
|
dyn_add_iocheck(FC_ADDR,1);
|
|
|
|
gen_restore_addr_reg();
|
|
|
|
gen_call_function_R((void*)&IO_ReadB,FC_ADDR);
|
|
|
|
MOV_REG_BYTE_FROM_HOST_REG_LOW(FC_RETOP,DRC_REG_EAX,0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_read_port_word(void) {
|
|
|
|
MOV_REG_WORD16_TO_HOST_REG(FC_ADDR,DRC_REG_EDX);
|
|
|
|
gen_extend_word(false,FC_ADDR);
|
|
|
|
gen_protect_addr_reg();
|
|
|
|
dyn_add_iocheck(FC_ADDR,decode.big_op?4:2);
|
|
|
|
gen_restore_addr_reg();
|
|
|
|
gen_call_function_R(decode.big_op?((void*)&IO_ReadD):((void*)&IO_ReadW),FC_ADDR);
|
|
|
|
MOV_REG_WORD_FROM_HOST_REG(FC_RETOP,DRC_REG_EAX,decode.big_op);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_write_port_byte(void) {
|
|
|
|
MOV_REG_WORD16_TO_HOST_REG(FC_ADDR,DRC_REG_EDX);
|
|
|
|
gen_extend_word(false,FC_ADDR);
|
|
|
|
gen_protect_addr_reg();
|
|
|
|
dyn_add_iocheck(FC_ADDR,1);
|
|
|
|
MOV_REG_BYTE_TO_HOST_REG_LOW(FC_RETOP,DRC_REG_EAX,0);
|
|
|
|
gen_extend_byte(false,FC_RETOP);
|
|
|
|
gen_restore_addr_reg();
|
|
|
|
gen_call_function_RR((void*)&IO_WriteB,FC_ADDR,FC_RETOP);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_write_port_word(void) {
|
|
|
|
MOV_REG_WORD16_TO_HOST_REG(FC_ADDR,DRC_REG_EDX);
|
|
|
|
gen_extend_word(false,FC_ADDR);
|
|
|
|
gen_protect_addr_reg();
|
|
|
|
dyn_add_iocheck(FC_ADDR,decode.big_op?4:2);
|
|
|
|
MOV_REG_WORD_TO_HOST_REG(FC_RETOP,DRC_REG_EAX,decode.big_op);
|
|
|
|
if (!decode.big_op) gen_extend_word(false,FC_RETOP);
|
|
|
|
gen_restore_addr_reg();
|
|
|
|
gen_call_function_RR(decode.big_op?((void*)&IO_WriteD):((void*)&IO_WriteW),FC_ADDR,FC_RETOP);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void dyn_enter(void) {
|
|
|
|
Bitu bytes=decode_fetchw();
|
|
|
|
Bitu level=decode_fetchb();
|
|
|
|
gen_call_function_III((void *)&CPU_ENTER,decode.big_op,bytes,level);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dynrec_leave_word(void) {
|
|
|
|
reg_esp&=cpu.stack.notmask;
|
|
|
|
reg_esp|=(reg_ebp&cpu.stack.mask);
|
|
|
|
reg_bp=(Bit16u)CPU_Pop16();
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dynrec_leave_dword(void) {
|
|
|
|
reg_esp&=cpu.stack.notmask;
|
|
|
|
reg_esp|=(reg_ebp&cpu.stack.mask);
|
|
|
|
reg_ebp=CPU_Pop32();
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dyn_leave(void) {
|
|
|
|
if (decode.big_op) gen_call_function_raw((void *)dynrec_leave_dword);
|
|
|
|
else gen_call_function_raw((void *)dynrec_leave_word);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void dynrec_pusha_word(void) {
|
|
|
|
Bit16u old_sp=reg_sp;
|
|
|
|
CPU_Push16(reg_ax);CPU_Push16(reg_cx);CPU_Push16(reg_dx);CPU_Push16(reg_bx);
|
|
|
|
CPU_Push16(old_sp);CPU_Push16(reg_bp);CPU_Push16(reg_si);CPU_Push16(reg_di);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dynrec_pusha_dword(void) {
|
|
|
|
Bitu tmpesp = reg_esp;
|
|
|
|
CPU_Push32(reg_eax);CPU_Push32(reg_ecx);CPU_Push32(reg_edx);CPU_Push32(reg_ebx);
|
|
|
|
CPU_Push32(tmpesp);CPU_Push32(reg_ebp);CPU_Push32(reg_esi);CPU_Push32(reg_edi);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dynrec_popa_word(void) {
|
|
|
|
reg_di=(Bit16u)CPU_Pop16();reg_si=(Bit16u)CPU_Pop16();
|
|
|
|
reg_bp=(Bit16u)CPU_Pop16();CPU_Pop16(); //Don't save SP
|
|
|
|
reg_bx=(Bit16u)CPU_Pop16();reg_dx=(Bit16u)CPU_Pop16();
|
|
|
|
reg_cx=(Bit16u)CPU_Pop16();reg_ax=(Bit16u)CPU_Pop16();
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dynrec_popa_dword(void) {
|
|
|
|
reg_edi=CPU_Pop32();reg_esi=CPU_Pop32();reg_ebp=CPU_Pop32();CPU_Pop32(); //Don't save ESP
|
|
|
|
reg_ebx=CPU_Pop32();reg_edx=CPU_Pop32();reg_ecx=CPU_Pop32();reg_eax=CPU_Pop32();
|
|
|
|
}
|