57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
|
/* This file is part of the dynarmic project.
|
||
|
|
* Copyright (c) 2016 MerryMage
|
||
|
|
* This software may be used and distributed according to the terms of the GNU
|
||
|
|
* General Public License version 2 or any later version.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#pragma once
|
||
|
|
|
||
|
|
#include <array>
|
||
|
|
|
||
|
|
#include "common/common_types.h"
|
||
|
|
#include "common/intrusive_list.h"
|
||
|
|
#include "frontend/ir/opcodes.h"
|
||
|
|
#include "frontend/ir/value.h"
|
||
|
|
|
||
|
|
namespace Dynarmic {
|
||
|
|
namespace IR {
|
||
|
|
|
||
|
|
/**
|
||
|
|
* A representation of a microinstruction. A single ARM/Thumb instruction may be
|
||
|
|
* converted into zero or more microinstructions.
|
||
|
|
*/
|
||
|
|
class Inst final : public Common::IntrusiveListNode<Inst> {
|
||
|
|
public:
|
||
|
|
Inst(Opcode op) : op(op) {}
|
||
|
|
|
||
|
|
bool HasUses() const { return use_count > 0; }
|
||
|
|
|
||
|
|
/// Get the microop this microinstruction represents.
|
||
|
|
Opcode GetOpcode() const { return op; }
|
||
|
|
/// Get the type this instruction returns.
|
||
|
|
Type GetType() const { return GetTypeOf(op); }
|
||
|
|
/// Get the number of arguments this instruction has.
|
||
|
|
size_t NumArgs() const { return GetNumArgsOf(op); }
|
||
|
|
|
||
|
|
Value GetArg(size_t index) const;
|
||
|
|
void SetArg(size_t index, Value value);
|
||
|
|
|
||
|
|
void Invalidate();
|
||
|
|
|
||
|
|
void ReplaceUsesWith(Value& replacement);
|
||
|
|
|
||
|
|
size_t use_count = 0;
|
||
|
|
Inst* carry_inst = nullptr;
|
||
|
|
Inst* overflow_inst = nullptr;
|
||
|
|
|
||
|
|
private:
|
||
|
|
void Use(Value& value);
|
||
|
|
void UndoUse(Value& value);
|
||
|
|
|
||
|
|
Opcode op;
|
||
|
|
std::array<Value, 3> args;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace IR
|
||
|
|
} // namespace Dynarmic
|