81 lines
1.9 KiB
C
81 lines
1.9 KiB
C
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/* This file is part of the dynarmic project.
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* Copyright (c) 2016 MerryMage
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* This software may be used and distributed according to the terms of the GNU
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* General Public License version 2 or any later version.
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*/
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#pragma once
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#include <xbyak.h>
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#include "common/assert.h"
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namespace Dynarmic {
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namespace BackendX64 {
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struct OpArg {
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OpArg() : type(Type::Operand), inner_operand() {}
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/* implicit */ OpArg(const Xbyak::Address& address) : type(Type::Address), inner_address(address) {}
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/* implicit */ OpArg(const Xbyak::Reg& reg) : type(Type::Reg), inner_reg(reg) {}
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Xbyak::Operand& operator*() {
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switch (type) {
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case Type::Address:
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return inner_address;
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case Type::Operand:
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return inner_operand;
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case Type::Reg:
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return inner_reg;
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}
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ASSERT_MSG(false, "Unreachable");
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}
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void setBit(int bits) {
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switch (type) {
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case Type::Address:
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inner_address.setBit(bits);
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return;
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case Type::Operand:
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inner_operand.setBit(bits);
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return;
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case Type::Reg:
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switch (bits) {
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case 8:
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inner_reg = inner_reg.cvt8();
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return;
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case 16:
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inner_reg = inner_reg.cvt16();
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return;
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case 32:
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inner_reg = inner_reg.cvt32();
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return;
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case 64:
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inner_reg = inner_reg.cvt64();
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return;
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default:
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ASSERT_MSG(false, "Invalid bits");
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return;
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}
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}
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ASSERT_MSG(false, "Unreachable");
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}
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private:
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enum class Type {
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Operand,
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Address,
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Reg,
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};
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Type type;
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union {
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Xbyak::Operand inner_operand;
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Xbyak::Address inner_address;
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Xbyak::Reg inner_reg;
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};
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};
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} // namespace BackendX64
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} // namespace Dynarmic
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