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https://github.com/SourMesen/Mesen2.git
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96 lines
No EOL
2.2 KiB
C++
96 lines
No EOL
2.2 KiB
C++
#pragma once
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#include "pch.h"
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#include "SNES/Coprocessors/DSP/NecDspTypes.h"
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#include "SNES/Coprocessors/BaseCoprocessor.h"
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class SnesConsole;
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class Emulator;
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class SnesMemoryManager;
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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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public:
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static constexpr uint32_t DataRomReadFlag = 0x80000000;
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private:
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SnesConsole* _console = nullptr;
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Emulator* _emu = nullptr;
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SnesMemoryManager* _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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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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uint16_t ReadRom(uint32_t addr);
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uint16_t ReadRam(uint32_t addr);
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void WriteRam(uint32_t addr, uint16_t value);
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NecDsp(CoprocessorType type, SnesConsole* 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, SnesConsole* 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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uint32_t GetOpCode(uint32_t addr);
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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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}; |