mirror of
https://github.com/SourMesen/Mesen2.git
synced 2025-04-02 10:21:44 -04:00
30d28c83a5
This makes performance equal or slightly better to what it was before all of the recent accuracy improvements
346 lines
No EOL
6.5 KiB
C++
346 lines
No EOL
6.5 KiB
C++
#if (defined(DUMMYSPC) && !defined(__DUMMYSPC__H)) || (!defined(DUMMYSPC) && !defined(__SPC__H))
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#ifdef DUMMYSPC
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#define __DUMMYSPC__H
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#else
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#define __SPC__H
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#endif
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#include "pch.h"
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#include "SNES/SpcTypes.h"
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#include "SNES/DSP/DspTypes.h"
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#include "SNES/SnesCpuTypes.h"
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#include "SNES/SpcTimer.h"
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#include "Shared/MemoryOperationType.h"
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#include "Utilities/ISerializable.h"
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class SnesConsole;
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class Emulator;
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class SnesMemoryManager;
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class SpcFileData;
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class Dsp;
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struct AddressInfo;
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class Spc : public ISerializable
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{
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public:
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static constexpr int SpcRamSize = 0x10000;
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static constexpr int SpcRomSize = 0x40;
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static constexpr int SpcSampleRate = 32000;
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private:
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static constexpr int SampleBufferSize = 0x20000;
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static constexpr uint16_t ResetVector = 0xFFFE;
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Emulator* _emu = nullptr;
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SnesConsole* _console = nullptr;
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SnesMemoryManager* _memoryManager = nullptr;
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unique_ptr<Dsp> _dsp;
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double _clockRatio = 0.0;
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/* Temporary data used in the middle of operations */
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uint16_t _operandA = 0;
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uint16_t _operandB = 0;
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uint16_t _tmp1 = 0;
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uint16_t _tmp2 = 0;
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uint16_t _tmp3 = 0;
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uint8_t _opCode = 0;
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SpcOpStep _opStep = {};
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uint8_t _opSubStep = 0;
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bool _enabled = false;
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bool _pendingCpuRegUpdate = false;
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uint32_t _spcSampleRate = Spc::SpcSampleRate;
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SpcState _state;
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uint8_t* _ram;
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uint8_t _spcBios[64] {
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0xCD, 0xEF, 0xBD, 0xE8, 0x00, 0xC6, 0x1D, 0xD0,
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0xFC, 0x8F, 0xAA, 0xF4, 0x8F, 0xBB, 0xF5, 0x78,
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0xCC, 0xF4, 0xD0, 0xFB, 0x2F, 0x19, 0xEB, 0xF4,
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0xD0, 0xFC, 0x7E, 0xF4, 0xD0, 0x0B, 0xE4, 0xF5,
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0xCB, 0xF4, 0xD7, 0x00, 0xFC, 0xD0, 0xF3, 0xAB,
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0x01, 0x10, 0xEF, 0x7E, 0xF4, 0x10, 0xEB, 0xBA,
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0xF6, 0xDA, 0x00, 0xBA, 0xF4, 0xC4, 0xF4, 0xDD,
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0x5D, 0xD0, 0xDB, 0x1F, 0x00, 0x00, 0xC0, 0xFF
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};
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//Store operations
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void STA();
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void STX();
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void STY();
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void STW();
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void STA_AutoIncX();
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void LDA_AutoIncX();
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//Load operations
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void LDA();
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void LDA_Imm();
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void LDX();
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void LDX_Imm();
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void LDY();
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void LDY_Imm();
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void LDW();
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//Transfer
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void Transfer(uint8_t & dst, uint8_t src);
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void TXA();
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void TYA();
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void TAX();
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void TAY();
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void TSX();
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void TXS();
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void STC();
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void LDC();
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void MOV();
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void MOV_Imm();
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//Arithmetic
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uint8_t Add(uint8_t a, uint8_t b);
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uint8_t Sub(uint8_t a, uint8_t b);
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void ADC();
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void ADC_Acc();
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void ADC_Imm();
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void ADDW();
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void SBC();
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void SBC_Acc();
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void SBC_Imm();
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void SUBW();
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void Compare(uint8_t a, uint8_t b);
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void CMP();
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void CMP_Acc();
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void CMP_Imm();
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void CPX();
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void CPX_Imm();
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void CPY();
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void CPY_Imm();
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void CMPW();
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//Increment/decrement
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void INC();
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void INC_Acc();
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void INX();
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void INY();
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void INCW();
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void DEC();
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void DEC_Acc();
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void DEX();
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void DEY();
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void DECW();
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void MUL();
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void DIV();
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//Decimal
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void DAA();
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void DAS();
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//Logical
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void AND();
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void AND_Acc();
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void AND_Imm();
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void OR();
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void OR_Acc();
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void OR_Imm();
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void EOR();
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void EOR_Acc();
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void EOR_Imm();
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void SetCarry(uint8_t carry);
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void OR1();
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void NOR1();
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void AND1();
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void NAND1();
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void EOR1();
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void NOT1();
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//Shift/rotate
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uint8_t ShiftLeft(uint8_t value);
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uint8_t RollLeft(uint8_t value);
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uint8_t ShiftRight(uint8_t value);
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uint8_t RollRight(uint8_t value);
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void ASL();
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void ASL_Acc();
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void LSR();
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void LSR_Acc();
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void ROL();
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void ROL_Acc();
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void ROR();
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void ROR_Acc();
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void XCN();
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//Branch operations
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void Branch();
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void BRA();
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void BEQ();
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void BNE();
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void BCS();
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void BCC();
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void BVS();
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void BVC();
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void BMI();
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void BPL();
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void BBS();
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void BBC();
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void CBNE();
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void DBNZ();
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void DBNZ_Y();
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void JMP();
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//Flag operations
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void CLRC();
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void SETC();
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void NOTC();
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void CLRV();
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void CLRP();
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void SETP();
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void EI();
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void DI();
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void TSET1();
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void TCLR1();
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template<uint8_t bit> void SET1();
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template<uint8_t bit> void CLR1();
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template<uint8_t bit> void BBS();
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template<uint8_t bit> void BBC();
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//Subroutine operations
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void PCALL();
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void JSR();
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void RTS();
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void BRK();
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void RTI();
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template<uint8_t offset> void TCALL();
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//Stack operations
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void PushOperation(uint8_t value);
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void PullOperation(uint8_t & dst);
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void PHA();
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void PHX();
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void PHY();
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void PHP();
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void PLA();
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void PLX();
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void PLY();
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void PLP();
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//Other operations
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void NOP();
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void SLEEP();
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void STOP();
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void Idle();
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void DummyRead();
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void DummyRead(uint16_t addr);
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uint8_t Read(uint16_t addr, MemoryOperationType type = MemoryOperationType::Read);
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uint16_t ReadWord(uint16_t addr, MemoryOperationType type = MemoryOperationType::Read);
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void Write(uint16_t addr, uint8_t value, MemoryOperationType type = MemoryOperationType::Write);
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void Addr_Dir();
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void Addr_DirIdxX();
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void Addr_DirIdxY();
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void Addr_DirToDir();
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void Addr_DirImm();
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void Addr_IndX();
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void Addr_IndXToIndY();
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void Addr_Abs();
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void Addr_AbsBit();
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void Addr_AbsIdxX();
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void Addr_AbsIdxY();
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void Addr_AbsIdxXInd();
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void Addr_DirIdxXInd();
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void Addr_DirIndIdxY();
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void Addr_Rel();
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void Addr_Imm();
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void ClearFlags(uint8_t flags);
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void SetFlags(uint8_t flags);
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bool CheckFlag(uint8_t flag);
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void SetZeroNegativeFlags(uint8_t value);
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void SetZeroNegativeFlags16(uint16_t value);
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uint8_t GetByteValue();
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void Push(uint8_t value);
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uint8_t Pop();
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uint16_t GetDirectAddress(uint8_t offset);
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uint8_t GetOpCode();
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uint8_t ReadOperandByte();
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__forceinline void IncCycleCount(int32_t addr);
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void EndOp();
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void EndAddr();
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__forceinline void ProcessCycle();
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__forceinline void Exec();
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void UpdateClockRatio();
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void ExitExecLoop();
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public:
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Spc(SnesConsole* console);
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virtual ~Spc();
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void SetSpcState(bool enabled);
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void Run();
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void Reset();
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uint8_t DebugRead(uint16_t addr);
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void DebugWrite(uint16_t addr, uint8_t value);
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void DebugWriteDspReg(uint8_t addr, uint8_t value);
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uint8_t CpuReadRegister(uint16_t addr);
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void CpuWriteRegister(uint32_t addr, uint8_t value);
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uint8_t DspReadRam(uint16_t addr);
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void DspWriteRam(uint16_t addr, uint8_t value);
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void ProcessEndFrame();
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SpcState& GetState();
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DspState& GetDspState();
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bool IsMuted();
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AddressInfo GetAbsoluteAddress(uint16_t addr);
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int GetRelativeAddress(AddressInfo & absAddress);
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uint8_t* GetSpcRam();
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uint8_t* GetSpcRom();
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void LoadSpcFile(SpcFileData* spcData);
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void Serialize(Serializer &s) override;
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#ifdef DUMMYSPC
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private:
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uint32_t _memOpCounter = 0;
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MemoryOperationInfo _memOperations[10] = {};
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void LogMemoryOperation(uint32_t addr, uint8_t value, MemoryOperationType type);
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public:
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DummySpc(uint8_t *spcRam);
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void Step();
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void SetDummyState(SpcState &state);
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uint32_t GetOperationCount();
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MemoryOperationInfo GetOperationInfo(uint32_t index);
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#endif
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};
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#endif |