| Код |
/* bios.h
Access to bios services.
Copyright (c) 1987, 1991 by Borland International
All Rights Reserved.
*/
#if !defined(__BIOS_H)
#define __BIOS_H
#if !defined(__DEFS_H)
#include <_defs.h>
#endif
/* diskinfo_t structure for _bios_disk() */
struct diskinfo_t {
unsigned drive, head, track, sector, nsectors;
void far *buffer;
};
/* cmd values for _bios_disk() */
#define _DISK_RESET 0 /* controller hard reset */
#define _DISK_STATUS 1 /* status of last operation */
#define _DISK_READ 2 /* read sectors */
#define _DISK_WRITE 3 /* write sectors */
#define _DISK_VERIFY 4 /* verify sectors */
#define _DISK_FORMAT 5 /* format track */
/* cmd values for _bios_keybrd() */
#define _KEYBRD_READ 0 /* read key */
#define _NKEYBRD_READ 0x10 /* read key - enhanced */
#define _KEYBRD_READY 1 /* check key ready */
#define _NKEYBRD_READY 0x11 /* check key ready - enhanced */
#define _KEYBRD_SHIFTSTATUS 2 /* get shift status */
#define _NKEYBRD_SHIFTSTATUS 0x12 /* get shift status - enhanced */
/* cmd values for _bios_printer() */
#define _PRINTER_WRITE 0 /* send a byte to printer */
#define _PRINTER_INIT 1 /* initialize printer */
#define _PRINTER_STATUS 2 /* read printer status */
/* cmd values for _bios_serialcom() */
#define _COM_INIT 0 /* set communication parms to a byte */
#define _COM_SEND 1 /* send a byte to port */
#define _COM_RECEIVE 2 /* read character from port */
#define _COM_STATUS 3 /* get status of port */
/* byte values for _COM_INIT cmd of _bios_serialcom() */
#define _COM_CHR7 0x02 /* 7 data bits */
#define _COM_CHR8 0x03 /* 8 data bits */
#define _COM_STOP1 0x00 /* 1 stop bit */
#define _COM_STOP2 0x04 /* 2 stop bits */
#define _COM_NOPARITY 0x00 /* no parity */
#define _COM_EVENPARITY 0x18 /* even parity */
#define _COM_ODDPARITY 0x08 /* odd parity */
#define _COM_110 0x00 /* 110 baud */
#define _COM_150 0x20 /* 150 baud */
#define _COM_300 0x40 /* 300 baud */
#define _COM_600 0x60 /* 600 baud */
#define _COM_1200 0x80 /* 1200 baud */
#define _COM_2400 0xa0 /* 2400 baud */
#define _COM_4800 0xc0 /* 4800 baud */
#define _COM_9600 0xe0 /* 9600 baud */
/* cmd values for _bios_timeofday() */
#define _TIME_GETCLOCK 0 /* get clock count */
#define _TIME_SETCLOCK 1 /* set clock count */
/* register structure definitions for int86(), int86x() */
#ifndef _REG_DEFS
#define _REG_DEFS
struct WORDREGS {
unsigned int ax, bx, cx, dx, si, di, cflag, flags;
};
struct BYTEREGS {
unsigned char al, ah, bl, bh, cl, ch, dl, dh;
};
union REGS {
struct WORDREGS x;
struct BYTEREGS h;
};
struct SREGS {
unsigned int es;
unsigned int cs;
unsigned int ss;
unsigned int ds;
};
struct REGPACK {
unsigned r_ax, r_bx, r_cx, r_dx;
unsigned r_bp, r_si, r_di, r_ds, r_es, r_flags;
};
#endif /* _REG_DEFS */
#ifdef __cplusplus
extern "C" {
#endif
/* New MSC-compatible BIOS functions.
*/
unsigned _Cdecl _bios_equiplist(void);
unsigned _Cdecl _bios_disk(unsigned __cmd, struct diskinfo_t *__dinfo);
unsigned _Cdecl _bios_keybrd(unsigned __cmd);
unsigned _Cdecl _bios_memsize(void);
unsigned _Cdecl _bios_printer(unsigned __cmd, unsigned __port, unsigned __abyte);
unsigned _Cdecl _bios_serialcom(unsigned __cmd, unsigned __port, unsigned __abyte);
unsigned _Cdecl _bios_timeofday(unsigned __cmd, long *__timeval);
/* Old-style BIOS functions.
*/
int _Cdecl bioscom(int __cmd, char __abyte, int __port);
int _Cdecl biosdisk(int __cmd, int __drive, int __head, int __track,
int __sector, int __nsects, void *__buffer);
int _Cdecl biosequip(void);
int _Cdecl bioskey(int __cmd);
int _Cdecl biosmemory(void);
int _Cdecl biosprint(int __cmd, int __abyte, int __port);
long _Cdecl biostime(int __cmd, long __newtime);
/* Miscellaneous prototypes for MSC compatibility
*/
int _Cdecl int86(int __intno, union REGS *__inregs, union REGS *__outregs);
int _Cdecl int86x(int __intno, union REGS *__inregs,
union REGS *__outregs, struct SREGS *__segregs);
#ifdef __cplusplus
}
#endif
#endif /* __BIOS_H */
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