148 lines
4.8 KiB
C++
148 lines
4.8 KiB
C++
#pragma once
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#include "6522.h"
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#include "AY8910.h"
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#include "Card.h"
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#include "SoundCore.h"
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#include "SSI263.h"
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#include "SynchronousEventManager.h"
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class MockingboardCard : public Card
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{
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public:
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MockingboardCard(UINT slot, SS_CARDTYPE type);
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virtual ~MockingboardCard(void);
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virtual void InitializeIO(LPBYTE pCxRomPeripheral);
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virtual void Destroy();
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virtual void Reset(const bool powerCycle);
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virtual void Update(const ULONG executedCycles);
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virtual void SaveSnapshot(YamlSaveHelper& yamlSaveHelper);
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virtual bool LoadSnapshot(YamlLoadHelper& yamlLoadHelper, UINT version);
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static BYTE __stdcall IORead(WORD pc, WORD addr, BYTE bWrite, BYTE d, ULONG nExecutedCycles);
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static BYTE __stdcall IOWrite(WORD pc, WORD addr, BYTE bWrite, BYTE d, ULONG nExecutedCycles);
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static BYTE __stdcall PhasorIO(WORD PC, WORD nAddr, BYTE bWrite, BYTE nValue, ULONG nExecutedCycles);
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BYTE IOReadInternal(WORD PC, WORD nAddr, BYTE bWrite, BYTE nValue, ULONG nExecutedCycles);
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BYTE IOWriteInternal(WORD pc, WORD addr, BYTE bWrite, BYTE d, ULONG nExecutedCycles);
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BYTE PhasorIOInternal(WORD PC, WORD nAddr, BYTE bWrite, BYTE nValue, ULONG nExecutedCycles);
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void ReinitializeClock(void);
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void MuteControl(bool mute);
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void UpdateCycles(ULONG executedCycles);
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bool IsActive(void);
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void SetVolume(DWORD dwVolume, DWORD dwVolumeMax);
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void SetCumulativeCycles(void);
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UINT MB_Update(void);
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short** GetVoiceBuffers(void) { return m_ppAYVoiceBuffer; }
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int GetNumSamplesError(void) { return m_numSamplesError; }
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void SetNumSamplesError(int numSamplesError) { m_numSamplesError = numSamplesError; }
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#ifdef _DEBUG
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void CheckCumulativeCycles(void);
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void Get6522IrqDescription(std::string& desc);
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#endif
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void UpdateIRQ(void);
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UINT64 GetLastCumulativeCycles(void);
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void UpdateIFR(BYTE nDevice, BYTE clr_mask, BYTE set_mask);
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BYTE GetPCR(BYTE nDevice);
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bool IsAnyTimer1Active(void);
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void GetSnapshot_v1(struct SS_CARD_MOCKINGBOARD_v1* const pSS);
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static std::string GetSnapshotCardName(void);
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static std::string GetSnapshotCardNamePhasor(void);
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private:
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enum MockingboardUnitState_e { AY_NOP0, AY_NOP1, AY_INACTIVE, AY_READ, AY_NOP4, AY_NOP5, AY_WRITE, AY_LATCH };
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struct MB_SUBUNIT
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{
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SY6522 sy6522;
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AY8913 ay8913[2]; // Phasor has 2x AY per 6522
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SSI263 ssi263;
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BYTE nAY8910Number;
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BYTE nAYCurrentRegister;
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MockingboardUnitState_e state; // Where a unit is a 6522+AY8910 pair
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MockingboardUnitState_e stateB; // Phasor: 6522 & 2nd AY8910
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MB_SUBUNIT(UINT slot) : sy6522(slot), ssi263(slot)
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{
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nAY8910Number = 0;
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nAYCurrentRegister = 0;
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state = AY_NOP0;
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stateB = AY_NOP0;
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// sy6522 & ssi263 have already been default constructed
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}
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};
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void WriteToORB(BYTE subunit);
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void AY8910_Write(BYTE subunit, BYTE ay, BYTE value);
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void UpdateIFRandIRQ(MB_SUBUNIT* pMB, BYTE clr_mask, BYTE set_mask);
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void Phasor_SaveSnapshot(YamlSaveHelper& yamlSaveHelper);
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bool Phasor_LoadSnapshot(YamlLoadHelper& yamlLoadHelper, UINT version);
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static int MB_SyncEventCallback(int id, int /*cycles*/, ULONG uExecutedCycles);
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int MB_SyncEventCallbackInternal(int id, int /*cycles*/, ULONG uExecutedCycles);
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//-------------------------------------
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// MAME interface
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BYTE AYReadReg(BYTE subunit, BYTE ay, int r);
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void _AYWriteReg(BYTE subunit, BYTE ay, int r, int v);
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void AY8910_reset(BYTE subunit, BYTE ay);
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void AY8910Update(BYTE subunit, BYTE ay, INT16** buffer, int nNumSamples);
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void AY8910_InitAll(int nClock, int nSampleRate);
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void AY8910_InitClock(int nClock);
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BYTE* AY8910_GetRegsPtr(BYTE subunit, BYTE ay);
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void AY8910UpdateSetCycles();
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UINT AY8910_SaveSnapshot(class YamlSaveHelper& yamlSaveHelper, BYTE subunit, BYTE ay, const std::string& suffix);
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UINT AY8910_LoadSnapshot(class YamlLoadHelper& yamlLoadHelper, BYTE subunit, BYTE ay, const std::string& suffix);
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UINT64 m_lastAYUpdateCycle;
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//-------------------------------------
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static const UINT SY6522_DEVICE_A = 0;
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static const UINT SY6522_DEVICE_B = 1;
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static const UINT AY8913_DEVICE_A = 0;
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static const UINT AY8913_DEVICE_B = 1; // Phasor only
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// Chip offsets from card base:
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static const UINT SY6522A_Offset = 0x00;
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static const UINT SY6522B_Offset = 0x80;
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static const UINT SSI263B_Offset = 0x20;
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static const UINT SSI263A_Offset = 0x40;
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// MB has 2x (1x SY6522 + 1x AY8913), Phasor has 2x (1x SY6522 + 2x AY8913)
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MB_SUBUNIT m_MBSubUnit[NUM_SUBUNITS_PER_MB];
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static const UINT kNumSyncEvents = NUM_SY6522 * SY6522::kNumTimersPer6522;
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SyncEvent* m_syncEvent[kNumSyncEvents];
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UINT64 m_lastCumulativeCycle;
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static const DWORD SAMPLE_RATE = 44100; // Use a base freq so that DirectX (or sound h/w) doesn't have to up/down-sample
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short* m_ppAYVoiceBuffer[NUM_VOICES];
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UINT64 m_inActiveCycleCount;
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bool m_regAccessedFlag;
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bool m_isActive;
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//
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bool m_phasorEnable;
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PHASOR_MODE m_phasorMode;
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UINT m_phasorClockScaleFactor;
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//
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UINT64 m_lastMBUpdateCycle;
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int m_numSamplesError;
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};
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