Mirrors/cpu-emulator
1
0
Fork 0
mirror of https://github.com/tuz358/cpu-emulator.git synced 2025-12-18 21:14:35 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

Add xor_rm32_imm(0x81,0x83) instruction

Browse Source
This commit is contained in:
tuz358
2018-03-18 16:06:58 +09:00
parent c00f7378b7
commit 1af1ff44fd
2 changed files with 21 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
include/instructions.h
View File

@@ -138,5 +138,6 @@ public:
void sbb_rm32_imm(int imm_flag); void sbb_rm32_imm(int imm_flag);
void and_rm32_imm(int imm_flag); void and_rm32_imm(int imm_flag);
void sub_rm32_imm(int imm_flag); void sub_rm32_imm(int imm_flag);
void xor_rm32_imm(int imm_flag);
void cmp_rm32_imm8(); void cmp_rm32_imm8();
}; };

22
instructions.cpp
View File

@@ -490,7 +490,7 @@ void Instructions::opcode_81(){
sub_rm32_imm(IMM32); sub_rm32_imm(IMM32);
break; break;
case 6: case 6:
// TODO: xor_rm32_imm32(); xor_rm32_imm(IMM32);
break; break;
case 7: case 7:
// TODO: cmp_rm32_imm8(); // TODO: cmp_rm32_imm8();
@@ -526,7 +526,7 @@ void Instructions::opcode_83(){
sub_rm32_imm(IMM8); sub_rm32_imm(IMM8);
break; break;
case 6: case 6:
// TODO: xor_rm32_imm8(); xor_rm32_imm(IMM8);
break; break;
case 7: case 7:
cmp_rm32_imm8(); cmp_rm32_imm8();
@@ -892,6 +892,24 @@ void Instructions::sub_rm32_imm(int imm_flag){
this->eip++; this->eip++;
} }
void Instructions::xor_rm32_imm(int imm_flag){
//printf("xor_rm32_imm called.\n");
this->eip++;
if(imm_flag == IMM8){
uint8_t imm8 = memory.read_uint8(this->eip);
this->registers[this->M] ^= imm8;
} else if(imm_flag == IMM32){
uint32_t imm32 = memory.read_uint32(this->eip);
imm32 = swap_endian32(imm32);
this->registers[this->M] ^= imm32;
} else {
}
this->eip++;
}
void Instructions::cmp_rm32_imm8(){ void Instructions::cmp_rm32_imm8(){
//printf("cmp_rm32_imm8 called.\n"); //printf("cmp_rm32_imm8 called.\n");