87 lines
2 KiB
C++
87 lines
2 KiB
C++
#pragma once
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#include "stdafx.h"
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#include "NecDspTypes.h"
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#include "BaseCoprocessor.h"
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class Console;
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class MemoryManager;
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class RamHandler;
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enum class CoprocessorType;
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class NecDsp final : public BaseCoprocessor
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{
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private:
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Console* _console = nullptr;
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MemoryManager* _memoryManager = nullptr;
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NecDspState _state = {};
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unique_ptr<RamHandler> _ramHandler;
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CoprocessorType _type;
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double _frequency = 7600000;
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uint32_t _opCode = 0;
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uint8_t* _progRom = nullptr;
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uint32_t* _prgCache = nullptr;
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uint16_t* _dataRom = nullptr;
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uint16_t* _ram = nullptr;
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uint16_t _stack[16];
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uint32_t _progSize = 0;
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uint32_t _dataSize = 0;
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uint32_t _ramSize = 0;
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uint32_t _stackSize = 0;
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uint32_t _progMask = 0;
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uint32_t _dataMask = 0;
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uint32_t _ramMask = 0;
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uint32_t _stackMask = 0;
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uint64_t _cycleCount = 0;
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uint16_t _registerMask = 0;
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bool _inRqmLoop = false;
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void ReadOpCode();
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void RunApuOp(uint8_t aluOperation, uint16_t source);
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void UpdateDataPointer();
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void ExecOp();
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void ExecAndReturn();
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void Jump();
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void Load(uint8_t dest, uint16_t value);
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uint16_t GetSourceValue(uint8_t source);
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NecDsp(CoprocessorType type, Console* console, vector<uint8_t>& programRom, vector<uint8_t>& dataRom);
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public:
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virtual ~NecDsp();
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static NecDsp* InitCoprocessor(CoprocessorType type, Console* console, vector<uint8_t>& embeddedFirmware);
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void Reset() override;
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void Run() override;
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void LoadBattery() override;
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void SaveBattery() override;
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void BuildProgramCache();
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uint8_t Read(uint32_t addr) override;
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void Write(uint32_t addr, uint8_t value) override;
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uint8_t Peek(uint32_t addr) override;
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void PeekBlock(uint32_t addr, uint8_t* output) override;
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AddressInfo GetAbsoluteAddress(uint32_t address) override;
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uint8_t* DebugGetProgramRom();
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uint8_t* DebugGetDataRom();
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uint8_t* DebugGetDataRam();
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uint32_t DebugGetProgramRomSize();
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uint32_t DebugGetDataRomSize();
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uint32_t DebugGetDataRamSize();
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NecDspState GetState();
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void Serialize(Serializer& s) override;
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void SetReg(NecDspRegister reg, uint16_t value);
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};
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