mirror of
https://github.com/RetroDECK/Supermodel.git
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154 lines
3.9 KiB
C++
154 lines
3.9 KiB
C++
#ifndef INCLUDED_DRIVEBOARD_H
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#define INCLUDED_DRIVEBOARD_H
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#define RAM_SIZE 0x2000
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/*
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* CDriveBoardConfig:
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*
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* Settings used by CDriveBoard.
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*/
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class CDriveBoardConfig
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{
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public:
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bool enableFFeedback; // Enable drive board emulation/simulation
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bool simulateDrvBoard; // Simulate drive board rather than emulating it
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unsigned steeringStrength; // Setting for steering strength on DIP switches of drive board
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// Defaults
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CDriveBoardConfig(void)
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{
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enableFFeedback = false;
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simulateDrvBoard = false;
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steeringStrength = 5;
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}
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};
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/*
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* CDriveBoard
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*/
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class CDriveBoard : public CBus
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{
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public:
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bool IsAttached(void);
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bool IsSimulated(void);
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void GetDIPSwitches(UINT8 &dip1, UINT8 &dip2);
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void SetDIPSwitches(UINT8 dip1, UINT8 dip2);
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unsigned GetSteeringStrength();
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void SetSteeringStrength(unsigned steeringStrength);
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void Get7SegDisplays(UINT8 &seg1Digit, UINT8 &seg1Digit2, UINT8 &seg2Digit1, UINT8 &seg2Digit2);
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CZ80 *GetZ80(void);
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void SaveState(CBlockFile *SaveState);
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void LoadState(CBlockFile *SaveState);
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BOOL Init(const UINT8 *romPtr);
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void AttachInputs(CInputs *InputsPtr, unsigned gameInputFlags);
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void Reset(void);
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UINT8 Read(void);
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void Write(UINT8 data);
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void RunFrame(void);
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CDriveBoard();
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~CDriveBoard(void);
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// CBus methods
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UINT8 Read8(UINT32 addr);
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void Write8(UINT32 addr, UINT8 data);
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UINT8 IORead8(UINT32 portNum);
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void IOWrite8(UINT32 portNum, UINT8 data);
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private:
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bool m_attached; // True if drive board is attached
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bool m_simulated; // True if drive board should be simulated rather than emulated
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UINT8 m_dip1; // Value of DIP switch 1
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UINT8 m_dip2; // Value of DIP switch 2
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const UINT8* m_rom; // 32k ROM
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UINT8* m_ram; // 8k RAM
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CZ80 m_z80; // Z80 CPU @ 4MHz
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CInputs *m_inputs;
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unsigned m_inputFlags;
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// Emulation state
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bool m_initialized; // True if drive board has finished initialization
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bool m_allowInterrupts; // True if drive board has enabled NMI interrupts
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UINT8 m_seg1Digit1; // Current value of left digit on 7-segment display 1
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UINT8 m_seg1Digit2; // Current value of right digit on 7-segment display 1
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UINT8 m_seg2Digit1; // Current value of left digit on 7-segment display 2
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UINT8 m_seg2Digit2; // Current value of right digit on 7-segment display 2
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UINT8 m_dataSent; // Last command sent by main board
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UINT8 m_dataReceived; // Data to send back to main board
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UINT16 m_adcPortRead; // ADC port currently reading from
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UINT8 m_adcPortBit; // Bit number currently reading on ADC port
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UINT8 m_port42Out; // Last value sent to Z80 I/O port 42 (encoder motor data)
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UINT8 m_port46Out; // Last value sent to Z80 I/O port 46 (encoder motor control)
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UINT8 m_prev42Out; // Previous value sent to Z80 I/O port 42
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UINT8 m_prev46Out; // Previous value sent to Z80 I/O port 46
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UINT8 m_uncenterVal1; // First part of pending uncenter command
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UINT8 m_uncenterVal2; // Second part of pending uncenter command
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// Simulation state
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UINT8 m_initState;
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UINT8 m_statusFlags;
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UINT8 m_boardMode;
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UINT8 m_readMode;
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UINT8 m_wheelCenter;
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UINT8 m_cockpitCenter;
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UINT8 m_echoVal;
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// Feedback state
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INT8 m_lastConstForce; // Last constant force command sent
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UINT8 m_lastSelfCenter; // Last self center command sent
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UINT8 m_lastFriction; // Last friction command sent
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UINT8 m_lastVibrate; // Last vibrate command sent
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UINT8 SimulateRead(void);
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void SimulateWrite(UINT8 data);
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void SimulateFrame(void);
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void EmulateFrame(void);
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void ProcessEncoderCmd(void);
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void SendStopAll(void);
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void SendConstantForce(INT8 val);
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void SendSelfCenter(UINT8 val);
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void SendFriction(UINT8 val);
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void SendVibrate(UINT8 val);
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};
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#endif // INCLUDED_DRIVEBOARD_H
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