mirror of
https://github.com/robmcmullen/apple2.git
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70 lines
1.6 KiB
C
70 lines
1.6 KiB
C
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//
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// Apple 2 floppy disk support
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//
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#ifndef __FLOPPY_H__
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#define __FLOPPY_H__
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// MAX_PATH isn't defined in stdlib.h on *nix, so we do it here...
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#ifdef __GCCUNIX__
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#include <limits.h>
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#define MAX_PATH _POSIX_PATH_MAX
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#else
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#include <stdlib.h> // for MAX_PATH on MinGW/Darwin
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#endif
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#include "types.h"
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enum { DT_UNKNOWN, DT_DOS33, DT_PRODOS, DT_NYBBLE };
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class FloppyDrive
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{
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public:
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FloppyDrive();
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~FloppyDrive();
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bool LoadImage(const char * filename, uint8 driveNum = 0);
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bool SaveImage(uint8 driveNum = 0);
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bool SaveImageAs(const char * filename, uint8 driveNum = 0);
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void CreateBlankImage(uint8 driveNum = 0);
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void SwapImages(void);
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// I/O functions ($C0Ex accesses)
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void ControlStepper(uint8 addr);
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void ControlMotor(uint8 addr);
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void DriveEnable(uint8 addr);
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uint8 ReadWrite(void);
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uint8 GetLatchValue(void);
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void SetLatchValue(uint8 value);
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void SetReadMode(void);
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void SetWriteMode(void);
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protected:
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void DetectImageType(const char * filename, uint8 driveNum);
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void NybblizeImage(uint8 driveNum);
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void DenybblizeImage(uint8 driveNum);
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private:
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char imageName[2][MAX_PATH];
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uint8 * disk[2];
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uint32 diskSize[2];
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uint8 diskType[2];
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bool imageDirty[2];
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uint8 motorOn;
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uint8 activeDrive;
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uint8 ioMode;
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uint8 latchValue;
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uint8 phase;
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uint8 track;
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uint8 nybblizedImage[2][232960];
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uint32 currentPos;
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// And here are some private class variables (to reduce function redundancy):
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static uint8 header[21];
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static uint8 doSector[16];
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static uint8 poSector[16];
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};
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#endif // __FLOPPY_H__
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