aiie/apple/hd32.h

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1.4 KiB
C
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#ifndef __HD32_H
#define __HD32_H
#ifdef TEENSYDUINO
#include <Arduino.h>
#else
#include <stdint.h>
#include <stdio.h>
#endif
#include "filemanager.h"
#include "applemmu.h"
#include "slot.h"
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#include "LRingBuffer.h"
class HD32 : public Slot {
public:
HD32(AppleMMU *mmu);
virtual ~HD32();
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virtual bool Serialize(int8_t fd);
virtual bool Deserialize(int8_t fd);
virtual void Reset(); // used by BIOS cold-boot
virtual uint8_t readSwitches(uint8_t s);
virtual void writeSwitches(uint8_t s, uint8_t v);
virtual void loadROM(uint8_t *toWhere);
void setEnabled(uint8_t e);
void insertDisk(int8_t driveNum, const char *filename);
void ejectDisk(int8_t driveNum);
const char *diskName(int8_t num);
protected:
uint8_t readNextByteFromSelectedDrive();
bool readBlockFromSelectedDrive();
bool writeBlockToSelectedDrive();
private:
AppleMMU *mmu;
uint8_t driveSelected; // 0 or 1
uint8_t unitSelected; // b7 = drive#; b6..4 = slot#; b3..0 = ?
uint8_t command; // CMD_*; FIXME, make enum
uint8_t enabled;
uint8_t errorState[2]; // status of last operation
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uint16_t memBlock[2]; // pointer to memory (for writing blocks to disk)
uint16_t diskBlock[2]; // currently selected block
int8_t fd[2];
uint32_t cursor[2]; // seek position on the given file handle
int32_t cachedBlockNum;
uint8_t cachedBlock[512];
};
#endif