Mesen2/Core/SMS/Debugger/SmsAssembler.h
2023-12-14 22:23:27 +09:00

59 lines
No EOL
1.7 KiB
C++

#pragma once
#include "pch.h"
#include "Debugger/IAssembler.h"
class LabelManager;
enum class HlRegType;
class SmsAssembler : public IAssembler
{
enum class ParamType
{
None,
Literal,
Byte,
Short,
Address,
RelAddress,
Port,
IxOffset,
IyOffset
};
struct ParamEntry
{
string Param;
ParamType Type;
};
struct OpCodeEntry
{
uint32_t OpCode;
int ParamCount;
ParamEntry Param1;
ParamEntry Param2;
ParamEntry Param3;
};
private:
unordered_map<string, vector<OpCodeEntry>> _opCodes;
LabelManager* _labelManager;
void InitParamEntry(ParamEntry& entry, string param, HlRegType hlRegType);
bool IsRegisterName(string op);
void InitAssembler();
int ReadValue(string operand, int min, int max, unordered_map<string, uint16_t>& localLabels, bool firstPass, bool isPortValue = false);
bool IsMatch(ParamEntry& entry, string operand, uint32_t address, unordered_map<string, uint16_t>& localLabels, bool firstPass);
void PushOp(uint32_t opCode, vector<int16_t>& output, uint32_t& address);
void PushByte(uint8_t operand, vector<int16_t>& output, uint32_t& address, bool insertBeforeOpCode = false);
void PushWord(uint16_t operand, vector<int16_t>& output, uint32_t& address);
void ProcessOperand(OpCodeEntry& opEntry, ParamEntry& entry, string operand, vector<int16_t>& output, uint32_t& address, unordered_map<string, uint16_t>& localLabels, bool firstPass);
void RunPass(vector<int16_t>& output, string code, uint32_t address, int16_t* assembledCode, bool firstPass, unordered_map<string, uint16_t>& localLabels);
public:
SmsAssembler(LabelManager* labelManager);
virtual ~SmsAssembler();
uint32_t AssembleCode(string code, uint32_t startAddress, int16_t* assembledCode);
};