104 lines
2.9 KiB
C
104 lines
2.9 KiB
C
/*_ bios.h Tue Jul 25 1989 Modified by: Dave Mansell */
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#ifndef BIOS_H
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#define BIOS_H
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#if __cplusplus
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extern "C" {
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#endif
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/* struct used to send and receive information to and from */
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/* the BIOS (int 0x13) disk services */
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struct diskinfo_t {
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unsigned drive;
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unsigned head;
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unsigned track;
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unsigned sector;
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unsigned nsectors;
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void far *buffer;
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};
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/* manifest constants for BIOS services */
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/* serial port services */
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#define _COM_INIT 0 /* init serial port */
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#define _COM_SEND 1 /* send character */
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#define _COM_RECEIVE 2 /* receive character */
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#define _COM_STATUS 3 /* get serial port status */
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/* serial port initializers. One constant from each of the following */
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/* four groups must be specified in the initialization byte. */
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/* character size */
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#define _COM_CHR7 2 /* 7 bits characters */
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#define _COM_CHR8 3 /* 8 bits characters */
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/* stop bit values */
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#define _COM_STOP1 0 /* 1 stop bit */
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#define _COM_STOP2 4 /* 2 stop bits */
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/* parity */
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#define _COM_NOPARITY 0 /* no parity */
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#define _COM_ODDPARITY 8 /* odd parity */
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#define _COM_EVENPARITY 24 /* even parity */
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/* baud rate */
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#define _COM_110 0 /* 110 baud */
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#define _COM_150 32 /* 150 baud */
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#define _COM_300 64 /* 300 baud */
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#define _COM_600 96 /* 600 baud */
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#define _COM_1200 128 /* 1200 baud */
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#define _COM_2400 160 /* 2400 baud */
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#define _COM_4800 192 /* 4800 baud */
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#define _COM_9600 224 /* 9600 baud */
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/* disk services */
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#define _DISK_RESET 0 /* reset disk controller */
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#define _DISK_STATUS 1 /* get disk status */
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#define _DISK_READ 2 /* read disk sectors */
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#define _DISK_WRITE 3 /* write disk sectors */
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#define _DISK_VERIFY 4 /* verify disk sectors */
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#define _DISK_FORMAT 3 /* format disk track */
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/* keyboard services */
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#define _KEYBRD_READ 0 /* read next character from keyboard */
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#define _KEYBRD_READY 1 /* check for keystroke */
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#define _KEYBRD_SHIFTSTATUS 2 /* get current shift key status */
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/* printer services */
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#define _PRINTER_WRITE 0 /* write character to printer */
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#define _PRINTER_INIT 1 /* intialize printer */
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#define _PRINTER_STATUS 2 /* get printer status */
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/* time of day services */
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#define _TIME_GETCLOCK 0 /* get current clock count */
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#define _TIME_SETCLOCK 1 /* set current clock count */
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/* Function prototypes for Bios services */
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int cdecl _bios_keybrd(int);
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int cdecl bioskey(int);
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int cdecl _bios_equiplist(void);
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int cdecl _bios_memsize(void);
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int cdecl _bios_printer(unsigned, unsigned, unsigned);
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int cdecl _bios_serialcom(unsigned, unsigned, unsigned);
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int cdecl _bios_timeofday(unsigned, long *);
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int cdecl _bios_disk(unsigned, struct diskinfo_t *);
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#if __cplusplus
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}
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#endif
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#endif
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