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Minor fixes

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tuz358
2018-03-16 14:58:24 +09:00
parent 336a8e5cb9
commit d1db40a6e1
2 changed files with 19 additions and 19 deletions
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2
include/instructions.h
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@@ -47,7 +47,7 @@ public:
void template_rm32_r32(int calc_type); void template_rm32_r32(int calc_type);
void calc_rm32_r32_case0to2(uint32_t addr, uint32_t dst, int calc_type); void calc_rm32_r32_case0to2(uint32_t addr, uint32_t dst, int calc_type);
void template_r32_rm32(int calc_type); void template_r32_rm32(int calc_type);
void calc_r32_rm32(uint32_t *src, uint32_t *dst, int calc_type); void calc_r32_rm32(uint32_t *dst, uint32_t *src, int calc_type);
void template_eax_imm32(int calc_type); void template_eax_imm32(int calc_type);
void add_rm32_r32(); // 0x01 void add_rm32_r32(); // 0x01

36
instructions.cpp
View File

@@ -199,7 +199,7 @@ void Instructions::calc_rm32_r32_case0to2(uint32_t addr, uint32_t dst, int calc_
} }
void Instructions::template_r32_rm32(int calc_type){ void Instructions::template_r32_rm32(int calc_type){
uint32_t addr, dst, imm32; uint32_t addr, src, imm32;
uint8_t imm8; uint8_t imm8;
this->modrm = memory.read_uint8(this->eip); this->modrm = memory.read_uint8(this->eip);
@@ -211,9 +211,9 @@ void Instructions::template_r32_rm32(int calc_type){
// addr : M // addr : M
this->eip++; this->eip++;
addr = this->registers[this->M]; addr = this->registers[this->M];
// dst : data of [M] // src : data of [M]
dst = memory.read_uint32(addr); src = memory.read_uint32(addr);
calc_r32_rm32(&this->registers[this->R], &dst, calc_type); calc_r32_rm32(&this->registers[this->R], &src, calc_type);
break; break;
case 1: case 1:
// operation R, [M+imm8] // operation R, [M+imm8]
@@ -221,9 +221,9 @@ void Instructions::template_r32_rm32(int calc_type){
imm8 = memory.read_uint8(this->eip); imm8 = memory.read_uint8(this->eip);
// addr : M // addr : M
addr = this->registers[this->M]; addr = this->registers[this->M];
// dst : data of [M+imm8] // src : data of [M+imm8]
dst = memory.read_uint32(addr + imm8); src = memory.read_uint32(addr + imm8);
calc_r32_rm32(&this->registers[this->R], &dst, calc_type); calc_r32_rm32(&this->registers[this->R], &src, calc_type);
this->eip++; this->eip++;
break; break;
case 2: case 2:
@@ -233,9 +233,9 @@ void Instructions::template_r32_rm32(int calc_type){
imm32 = swap_endian32(imm32); imm32 = swap_endian32(imm32);
// addr : M // addr : M
addr = this->registers[this->M]; addr = this->registers[this->M];
// dst : data of [M+imm32] // src : data of [M+imm32]
dst = memory.read_uint32(addr + imm32); src = memory.read_uint32(addr + imm32);
calc_r32_rm32(&this->registers[this->R], &dst, calc_type); calc_r32_rm32(&this->registers[this->R], &src, calc_type);
this->eip += 4; this->eip += 4;
break; break;
default: default:
@@ -247,22 +247,22 @@ void Instructions::template_r32_rm32(int calc_type){
} }
} }
void Instructions::calc_r32_rm32(uint32_t *src, uint32_t *dst, int calc_type){ void Instructions::calc_r32_rm32(uint32_t *dst, uint32_t *src, int calc_type){
switch (calc_type) { switch (calc_type) {
case ADD: case ADD:
*src += *dst; break; *dst += *src; break;
case OR: case OR:
*src |= *dst; break; *dst |= *src; break;
case ADC: case ADC:
*src += *dst + get_flag(CF); break; *dst += *src + get_flag(CF); break;
case SBB: case SBB:
*src -= *dst + get_flag(CF); break; *dst -= *src + get_flag(CF); break;
case AND: case AND:
*src &= *dst; break; *dst &= *src; break;
case SUB: case SUB:
*src -= *dst; break; *dst -= *src; break;
case XOR: case XOR:
*src ^= *dst; break; *dst ^= *src; break;
case CMP: case CMP:
// TODO: implement // TODO: implement
break; break;