shadPS4/src/common/disassembler.cpp

#include "common/disassembler.h"
#include <fmt/format.h>

namespace Common {

Disassembler::Disassembler() {
	ZydisDecoderInit(&m_decoder, ZYDIS_MACHINE_MODE_LONG_64, ZYDIS_STACK_WIDTH_64);
	ZydisFormatterInit(&m_formatter, ZYDIS_FORMATTER_STYLE_INTEL);
}

Disassembler::~Disassembler() = default;

void Disassembler::printInstruction(void* code, u64 address) {
	ZydisDecodedInstruction instruction;
	ZydisDecodedOperand operands[ZYDIS_MAX_OPERAND_COUNT_VISIBLE];
    ZyanStatus status = ZydisDecoderDecodeFull(&m_decoder, code, sizeof(code),
                                               &instruction, operands);
    if (!ZYAN_SUCCESS(status)) {
		fmt::print("decode instruction failed at {}\n", fmt::ptr(code));
    } else {
		printInst(instruction, operands,address);
	}
}

void Disassembler::printInst(ZydisDecodedInstruction& inst, ZydisDecodedOperand* operands, u64 address) {
	const int bufLen = 256;
	char szBuffer[bufLen];
    ZydisFormatterFormatInstruction(&m_formatter, &inst, operands,inst.operand_count_visible,
                                    szBuffer, sizeof(szBuffer), address, ZYAN_NULL);
    fmt::print("instruction: {}\n", szBuffer);
}

} // namespace Common