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Add dec_r32(0x48~0x4f) instruction

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tuz358
2018-03-05 09:57:32 +09:00
parent d4ec188ef1
commit 6a06934dde
2 changed files with 13 additions and 0 deletions
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1
include/instructions.h
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@@ -25,6 +25,7 @@ public:
void add_rm32_r32(); // 0x01
void xor_rm32_r32(); // 0x31
void dec_r32(); // 0x48 ~ 0x4f
void mov_rm32_r32(); // 0x89
void nop(); // 0x90
void mov_ecx_imm32(); // 0xb9

12
instructions.cpp
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@@ -22,6 +22,12 @@ void Instructions::init_instructions(){
this->instructions[0x01] = &Instructions::add_rm32_r32;
this->instructions[0x31] = &Instructions::xor_rm32_r32;
for(int i = 0;i < 8;i++){
// 0x48 ~ 0x4f : dec_r32
this->instructions[0x48+i] = &Instructions::dec_r32;
}
this->instructions[0x89] = &Instructions::mov_rm32_r32;
this->instructions[0x90] = &Instructions::nop;
this->instructions[0xb9] = &Instructions::mov_ecx_imm32;
@@ -146,6 +152,12 @@ void Instructions::xor_rm32_r32(){
}
}
void Instructions::dec_r32(){
printf("dec_r32 called.\n");
uint8_t opcode = memory.read_uint8(this->eip-1);
this->registers[opcode - 0x48]--;
}
void Instructions::mov_rm32_r32(){
printf("mov_rm32_r32 called.\n");
uint32_t addr, imm32;