mirror of
https://github.com/RetroDECK/Supermodel.git
synced 2024-11-23 06:15:37 +00:00
327 lines
8.4 KiB
C++
327 lines
8.4 KiB
C++
/**
|
|
** Supermodel
|
|
** A Sega Model 3 Arcade Emulator.
|
|
** Copyright 2011-2021 Bart Trzynadlowski, Nik Henson, Ian Curtis,
|
|
** Harry Tuttle, and Spindizzi
|
|
**
|
|
** This file is part of Supermodel.
|
|
**
|
|
** Supermodel is free software: you can redistribute it and/or modify it under
|
|
** the terms of the GNU General Public License as published by the Free
|
|
** Software Foundation, either version 3 of the License, or (at your option)
|
|
** any later version.
|
|
**
|
|
** Supermodel is distributed in the hope that it will be useful, but WITHOUT
|
|
** ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
** FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
** more details.
|
|
**
|
|
** You should have received a copy of the GNU General Public License along
|
|
** with Supermodel. If not, see <http://www.gnu.org/licenses/>.
|
|
**/
|
|
|
|
/*
|
|
* DriveBoard.h
|
|
*
|
|
* Header for the CDriveBoard (force feedback emulation) class.
|
|
* Abstract base class defining the common interface for wheel, joystick, ski, bill board types.
|
|
*/
|
|
|
|
#ifndef INCLUDED_DRIVEBOARD_H
|
|
#define INCLUDED_DRIVEBOARD_H
|
|
|
|
#include "CPU/Bus.h"
|
|
#include "CPU/Z80/Z80.h"
|
|
#include "Inputs/Inputs.h"
|
|
#include "OSD/Outputs.h"
|
|
#include "Util/NewConfig.h"
|
|
#include "Game.h"
|
|
|
|
/*
|
|
* CDriveBoard
|
|
*/
|
|
class CDriveBoard : public IBus
|
|
{
|
|
public:
|
|
/*
|
|
* GetType(void):
|
|
*
|
|
* Returns:
|
|
* Drive board type.
|
|
*/
|
|
virtual Game::DriveBoardType GetType(void);
|
|
|
|
/*
|
|
* IsAttached(void):
|
|
*
|
|
* Returns:
|
|
* True if the drive board is "attached" and should be emulated,
|
|
* otherwise false.
|
|
*/
|
|
virtual bool IsAttached(void);
|
|
|
|
/*
|
|
* IsSimulated(void):
|
|
*
|
|
* Returns:
|
|
* True if the drive board is being simulated rather than actually
|
|
* emulated, otherwise false.
|
|
*/
|
|
virtual bool IsSimulated(void);
|
|
|
|
/*
|
|
* GetDIPSwitches(dip1, dip2):
|
|
*
|
|
* Reads the two sets of DIP switches on the drive board.
|
|
*
|
|
* Parameters:
|
|
* dip1 Reference of variable to store DIP switch 1 to.
|
|
* dip2 DIP switch 2.
|
|
*/
|
|
virtual void GetDIPSwitches(UINT8 &dip1, UINT8 &dip2);
|
|
virtual void GetDIPSwitches(UINT8& dip1);
|
|
|
|
/*
|
|
* SetDIPSwitches(dip1, dip2):
|
|
*
|
|
* Sets the DIP switches.
|
|
*
|
|
* Parameters:
|
|
* dip1 DIP switch 1 value.
|
|
* dip2 DIP switch 2 value.
|
|
*/
|
|
virtual void SetDIPSwitches(UINT8 dip1, UINT8 dip2);
|
|
virtual void SetDIPSwitches(UINT8 dip1);
|
|
|
|
/*
|
|
* GetForceFeedbackStrength(void):
|
|
*
|
|
* Returns:
|
|
* Strength of the force feedback based on drive board DIP switches (1-8).
|
|
*/
|
|
virtual unsigned GetForceFeedbackStrength(void);
|
|
|
|
/*
|
|
* SetForceFeedbackStrength(strength):
|
|
*
|
|
* Sets the force feedback strength (modifies the DIP switch setting).
|
|
*
|
|
* Parameters:
|
|
* strength A value ranging from 1 to 8.
|
|
*/
|
|
virtual void SetForceFeedbackStrength(unsigned strength);
|
|
|
|
|
|
/*
|
|
* GetZ80(void):
|
|
*
|
|
* Returns:
|
|
* The Z80 object.
|
|
*/
|
|
virtual CZ80 *GetZ80(void);
|
|
|
|
/*
|
|
* SaveState(SaveState):
|
|
*
|
|
* Saves the drive board state.
|
|
*
|
|
* Parameters:
|
|
* SaveState Block file to save state information to.
|
|
*/
|
|
virtual void SaveState(CBlockFile *SaveState);
|
|
|
|
/*
|
|
* LoadState(SaveState):
|
|
*
|
|
* Restores the drive board state.
|
|
*
|
|
* Parameters:
|
|
* SaveState Block file to load save state information from.
|
|
*/
|
|
virtual void LoadState(CBlockFile *SaveState);
|
|
|
|
/*
|
|
* Init(romPtr):
|
|
*
|
|
* Initializes (and "attaches") the drive board. This should be called
|
|
* before other members.
|
|
*
|
|
* Parameters:
|
|
* romPtr Pointer to the drive board ROM (Z80 program).
|
|
*
|
|
* Returns:
|
|
* FAIL if the drive board could not be initialized (prints own error
|
|
* message), otherwise OKAY.
|
|
*/
|
|
virtual bool Init(const UINT8 *romPtr);
|
|
|
|
/*
|
|
* Init(void):
|
|
*
|
|
* Initializes a dummy drive board in a detached state. This should be called
|
|
* before other members. This initializer is provided in case a CDriveBoard
|
|
* object or pointer is needed but no drive board actually exists.
|
|
*/
|
|
bool Init(void);
|
|
|
|
/*
|
|
* AttachInputs(InputsPtr, gameInputFlags):
|
|
*
|
|
* Attaches inputs to the drive board (for access to the steering wheel
|
|
* position).
|
|
*
|
|
* Parameters:
|
|
* inputs Pointer to the input object.
|
|
* gameInputFlags The current game's input flags.
|
|
*/
|
|
virtual void AttachInputs(CInputs *inputs, unsigned gameInputFlags);
|
|
|
|
virtual void AttachOutputs(COutputs *outputs);
|
|
|
|
/*
|
|
* Reset(void):
|
|
*
|
|
* Resets the drive board.
|
|
*/
|
|
virtual void Reset(void);
|
|
|
|
/*
|
|
* Read():
|
|
*
|
|
* Reads data from the drive board.
|
|
*
|
|
* Returns:
|
|
* Data read.
|
|
*/
|
|
virtual UINT8 Read(void);
|
|
|
|
/*
|
|
* Write(data):
|
|
*
|
|
* Writes data to the drive board.
|
|
*
|
|
* Parameters:
|
|
* data Data to send.
|
|
*/
|
|
virtual void Write(UINT8 data);
|
|
|
|
/*
|
|
* RunFrame(void):
|
|
*
|
|
* Emulates a single frame's worth of time on the drive board.
|
|
*/
|
|
virtual void RunFrame(void);
|
|
|
|
/*
|
|
* CDriveBoard(config):
|
|
* ~CDriveBoard():
|
|
*
|
|
* Constructor and destructor. Memory is freed by destructor.
|
|
*
|
|
* Paramters:
|
|
* config Run-time configuration. The reference should be held because
|
|
* this changes at run-time.
|
|
*/
|
|
CDriveBoard(const Util::Config::Node& config);
|
|
virtual ~CDriveBoard(void);
|
|
|
|
/*
|
|
* Read8(addr):
|
|
* IORead8(portNum):
|
|
*
|
|
* Methods for reading from Z80's memory and IO space. Required by CBus.
|
|
*
|
|
* Parameters:
|
|
* addr Address in memory (0-0xFFFF).
|
|
* portNum Port address (0-255).
|
|
*
|
|
* Returns:
|
|
* A byte of data from the address or port.
|
|
*/
|
|
virtual UINT8 Read8(UINT32 addr);
|
|
virtual UINT8 IORead8(UINT32 portNum);
|
|
|
|
/*
|
|
* Write8(addr, data):
|
|
* IORead8(portNum, data):
|
|
*
|
|
* Methods for writing to Z80's memory and IO space. Required by CBus.
|
|
*
|
|
* Parameters:
|
|
* addr Address in memory (0-0xFFFF).
|
|
* portNum Port address (0-255).
|
|
* data Byte to write.
|
|
*/
|
|
virtual void Write8(UINT32 addr, UINT8 data);
|
|
virtual void IOWrite8(UINT32 portNum, UINT8 data);
|
|
|
|
|
|
protected:
|
|
|
|
struct LegacyDriveBoardState
|
|
{
|
|
uint8_t dip1;
|
|
uint8_t dip2;
|
|
uint8_t ram[0x2000];
|
|
uint8_t initialized;
|
|
uint8_t allowInterrupts;
|
|
uint8_t dataSent;
|
|
uint8_t dataReceived;
|
|
uint16_t adcPortRead;
|
|
uint8_t adcPortBit;
|
|
uint8_t uncenterVal1;
|
|
uint8_t uncenterVal2;
|
|
};
|
|
|
|
// Disable the drive board (without affecting attachment state). Used internally only to disable emulation.
|
|
virtual void Disable(void);
|
|
|
|
// Whether disabled and/or not attached -- used to determine whether to carry out emulation
|
|
bool IsDisabled(void);
|
|
|
|
// Attempt to load drive board data from old save states (prior to drive board refactor)
|
|
void LoadLegacyState(const LegacyDriveBoardState &state, CBlockFile *SaveState);
|
|
|
|
|
|
const Util::Config::Node& m_config;
|
|
|
|
bool m_attached; // True if drive board is attached
|
|
bool m_disabled; // True if emulation is internally disabled (e.g., by loading an incompatible save state). Can only be enabled once and if attached.
|
|
bool m_simulated; // True if drive board should be simulated rather than emulated
|
|
|
|
// Emulation state
|
|
bool m_initialized; // True if drive board has finished initialization
|
|
bool m_allowInterrupts; // True if drive board has enabled NMI interrupts
|
|
|
|
UINT8 m_dataSent; // Last command sent by main board
|
|
UINT8 m_dataReceived; // Data to send back to main board
|
|
|
|
UINT8 m_dip1; // Value of DIP switch 1
|
|
UINT8 m_dip2; // Value of DIP switch 2
|
|
|
|
// Simulation state
|
|
UINT8 m_initState;
|
|
UINT8 m_statusFlags;
|
|
UINT8 m_boardMode;
|
|
UINT8 m_readMode;
|
|
UINT8 m_wheelCenter;
|
|
UINT8 m_cockpitCenter;
|
|
UINT8 m_echoVal;
|
|
|
|
const UINT8* m_rom; // 32k ROM
|
|
UINT8* m_ram; // 8k RAM
|
|
|
|
const UINT8* m_dummyROM;
|
|
|
|
CZ80 m_z80; // Z80 CPU
|
|
float m_z80Clock; // Z80 clock frequency
|
|
bool m_z80NMI; // Non Masquable Interrupt or Interrupt
|
|
|
|
CInputs* m_inputs;
|
|
unsigned m_inputFlags;
|
|
|
|
COutputs* m_outputs;
|
|
};
|
|
|
|
#endif // INCLUDED_DRIVEBOARD_H
|