mirror of https://github.com/JorjBauer/aiie.git
76 lines
1.8 KiB
C++
76 lines
1.8 KiB
C++
#ifndef __DISKII_H
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#define __DISKII_H
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#ifdef TEENSYDUINO
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#include <Arduino.h>
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#else
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#include <stdint.h>
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#include <stdio.h>
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#endif
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#include "filemanager.h"
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#include "applemmu.h"
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#include "Slot.h"
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#include "LRingBuffer.h"
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#include "nibutil.h"
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class DiskII : public Slot {
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public:
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DiskII(AppleMMU *mmu);
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virtual ~DiskII();
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virtual bool Serialize(int8_t fd);
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virtual bool Deserialize(int8_t fd);
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virtual void Reset(); // used by BIOS cold-boot
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virtual uint8_t readSwitches(uint8_t s);
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virtual void writeSwitches(uint8_t s, uint8_t v);
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virtual void loadROM(uint8_t *toWhere);
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void insertDisk(int8_t driveNum, const char *filename, bool drawIt = true);
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void ejectDisk(int8_t driveNum);
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const char *DiskName(int8_t num);
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void flushTrack(int8_t track, int8_t sel);
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void fillDiskBuffer(); // called from main loop
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private:
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void setPhase(uint8_t phase);
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bool isWriteProtected();
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void setWriteMode(bool enable);
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void select(int8_t which); // 0 or 1 for drives 1 and 2, respectively
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uint8_t readOrWriteByte();
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void checkFlush(int8_t track);
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#ifndef TEENSYDUINO
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void convertDskToNib(const char *outFN);
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#endif
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private:
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volatile int8_t curHalfTrack[2];
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volatile int8_t curPhase[2];
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volatile bool trackDirty; // does this track need flushing to disk?
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uint8_t readWriteLatch;
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LRingBuffer *trackBuffer; // nibblized data
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uint8_t *rawTrackBuffer; // not nibblized data
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bool writeMode;
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bool writeProt;
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AppleMMU *mmu;
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int8_t disk[2];
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volatile uint8_t indicatorIsOn[2];
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uint8_t diskType[2];
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volatile int8_t trackToRead; // -1 when we're idle; not -1 when we need to read a track.
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volatile int8_t selectedDisk;
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volatile int8_t trackToFlush; // -1 when there's none
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volatile int8_t diskToFlush; // which selected disk are we writing to?
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};
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#endif
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