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#pragma once
#include <cstdint>
#include <string>
#include <vector>
// REX prefix: 0b0100WRXB
std::vector<uint8_t> REX(const std::string& s);
// Manual, page 530
// Reg + Reg/Memory
// disp: optional, only necessary in some cases, e.g. indexed memory access
// returns: Encoded ModRM byte, followed by SIB and disp bytes, if appropriate
std::vector<uint8_t> ModRM(const std::string& reg, const std::string& rm, int32_t disp = 0);
// Just the number of reg, e.g. for encoding inside primary opcode
uint8_t RegNo(const std::string& reg);
std::vector<uint8_t> OpSizePrefix();
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