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Add push_e**(0x50~0x57) instruction

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tuz358
2018-03-06 09:07:51 +09:00
parent de00d14cc4
commit 024cdf78b3
3 changed files with 69 additions and 1 deletions
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6
emulator.cpp
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@@ -4,7 +4,7 @@
void Emulator::init(size_t memorysize, FILE *bin){
memory.init(memorysize);
memory.load_binary(bin);
instructions.init(0, (int)memorysize/2, memory);
instructions.init(0, (int)memorysize, memory);
}
void Emulator::free(){
@@ -20,6 +20,10 @@ void Emulator::dump_registers(){
printf("ecx = 0x%08x (%d)\n", instructions.registers[1], instructions.registers[1]);
printf("edx = 0x%08x (%d)\n", instructions.registers[2], instructions.registers[2]);
printf("ebx = 0x%08x (%d)\n", instructions.registers[3], instructions.registers[3]);
printf("esp = 0x%08x (%d)\n", instructions.registers[4], instructions.registers[4]);
printf("ebp = 0x%08x (%d)\n", instructions.registers[5], instructions.registers[5]);
printf("esi = 0x%08x (%d)\n", instructions.registers[6], instructions.registers[6]);
printf("edi = 0x%08x (%d)\n", instructions.registers[7], instructions.registers[7]);
printf("eip = 0x%08x (%d)\n", instructions.eip, instructions.eip);
}

8
include/instructions.h
View File

@@ -45,6 +45,14 @@ public:
void dec_ebp(); // 0x4d
void dec_esi(); // 0x4e
void dec_edi(); // 0x4f
void push_eax(); // 0x50
void push_ecx(); // 0x51
void push_edx(); // 0x52
void push_ebx(); // 0x53
void push_esp(); // 0x54
void push_ebp(); // 0x55
void push_esi(); // 0x56
void push_edi(); // 0x57
void jne_imm8(); // 0x75
void opcode_83(); // 0x83
void mov_rm32_r32(); // 0x89

56
instructions.cpp
View File

@@ -38,6 +38,14 @@ void Instructions::init_instructions(){
this->instructions[0x4d] = &Instructions::dec_ebp;
this->instructions[0x4e] = &Instructions::dec_esi;
this->instructions[0x4f] = &Instructions::dec_edi;
this->instructions[0x50] = &Instructions::push_eax;
this->instructions[0x51] = &Instructions::push_ecx;
this->instructions[0x52] = &Instructions::push_edx;
this->instructions[0x53] = &Instructions::push_ebx;
this->instructions[0x54] = &Instructions::push_esp;
this->instructions[0x55] = &Instructions::push_ebp;
this->instructions[0x56] = &Instructions::push_esi;
this->instructions[0x57] = &Instructions::push_edi;
this->instructions[0x75] = &Instructions::jne_imm8;
this->instructions[0x83] = &Instructions::opcode_83;
this->instructions[0x89] = &Instructions::mov_rm32_r32;
@@ -248,6 +256,54 @@ void Instructions::dec_esi(){
this->registers[6]--;
}
void Instructions::push_eax(){
//printf("push_eax called.\n");
this->registers[4] -= 4;
memory.write_uint32(this->registers[4], this->registers[0]);
}
void Instructions::push_ecx(){
//printf("push_ecx called.\n");
this->registers[4] -= 4;
memory.write_uint32(this->registers[4], this->registers[1]);
}
void Instructions::push_edx(){
//printf("push_edx called.\n");
this->registers[4] -= 4;
memory.write_uint32(this->registers[4], this->registers[2]);
}
void Instructions::push_ebx(){
//printf("push_ebx called.\n");
this->registers[4] -= 4;
memory.write_uint32(this->registers[4], this->registers[3]);
}
void Instructions::push_esp(){
//printf("push_esp called.\n");
this->registers[4] -= 4;
memory.write_uint32(this->registers[4], this->registers[4]);
}
void Instructions::push_ebp(){
//printf("push_ebp called.\n");
this->registers[4] -= 4;
memory.write_uint32(this->registers[4], this->registers[5]);
}
void Instructions::push_esi(){
//printf("push_esi called.\n");
this->registers[4] -= 4;
memory.write_uint32(this->registers[4], this->registers[6]);
}
void Instructions::push_edi(){
//printf("push_edi called.\n");
this->registers[4] -= 4;
memory.write_uint32(this->registers[4], this->registers[7]);
}
void Instructions::dec_edi(){
//printf("dec_edi called.\n");
this->registers[7]--;