b78b2fecaa
Cleaned up floppy code a lot and reverted to single poller; Fixed segment present bit and limit checking at read/write within segment; The ASUS boards now have memregs too; RTC code improved based on suggestion by Sarah Walker; Fixed SVGA odd/even emulation and added chain odd/even support; Removed non-existent CPU's.
74 lines
2.3 KiB
C
74 lines
2.3 KiB
C
typedef struct
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{
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void (*seek)(int drive, int track);
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void (*readsector)(int drive, int sector, int track, int side, int density, int sector_size);
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void (*writesector)(int drive, int sector, int track, int side, int density, int sector_size);
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void (*readaddress)(int drive, int track, int side, int density);
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void (*format)(int drive, int track, int side, int density, uint8_t fill);
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int (*hole)(int drive);
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int (*byteperiod)(int drive);
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void (*stop)(int drive);
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void (*poll)();
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int (*realtrack)(int drive, int track);
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} DRIVE;
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extern DRIVE drives[2];
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extern int curdrive;
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void disc_load(int drive, char *fn);
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void disc_new(int drive, char *fn);
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void disc_close(int drive);
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void disc_init();
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void disc_reset();
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void disc_poll();
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void disc_seek(int drive, int track);
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void disc_readsector(int drive, int sector, int track, int side, int density, int sector_size);
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void disc_writesector(int drive, int sector, int track, int side, int density, int sector_size);
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void disc_readaddress(int drive, int track, int side, int density);
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void disc_format(int drive, int track, int side, int density, uint8_t fill);
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int disc_realtrack(int drive, int track);
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int disc_hole(int drive);
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int disc_byteperiod(int drive);
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void disc_stop(int drive);
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int disc_empty(int drive);
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void disc_set_rate(int drive, int drvden, int rate);
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void disc_set_drivesel(int drive);
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extern int disc_time;
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extern int64_t disc_poll_time;
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extern int disc_drivesel;
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void fdc_callback();
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int fdc_data(uint8_t dat);
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void fdc_spindown();
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void fdc_finishread();
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void fdc_notfound();
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void fdc_datacrcerror();
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void fdc_headercrcerror();
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void fdc_writeprotect();
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int fdc_getdata(int last);
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void fdc_sectorid(uint8_t track, uint8_t side, uint8_t sector, uint8_t size, uint8_t crc1, uint8_t crc2);
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void fdc_indexpulse();
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/*extern int fdc_time;
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extern int fdc_ready;
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extern int fdc_indexcount;*/
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extern int motorspin;
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extern int motoron;
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extern int swwp;
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extern int disable_write;
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extern int defaultwriteprot;
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//extern char discfns[4][260];
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extern int writeprot[2], fwriteprot[2];
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extern int disc_track[2];
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extern int disc_changed[2];
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extern int drive_empty[2];
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extern int drive_type[2];
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/*Used in the Read A Track command. Only valid for disc_readsector(). */
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#define SECTOR_FIRST -2
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#define SECTOR_NEXT -1
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