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PC World Komputer 1997 May
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BIOS.H
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C/C++ Source or Header
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1997-02-28
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5KB
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201 lines
/* bios.h
Access to bios services.
*/
/*
* C/C++ Run Time Library - Version 8.0
*
* Copyright (c) 1987, 1997 by Borland International
* All Rights Reserved.
*
*/
/* $Revision: 8.1 $ */
#if !defined(__BIOS_H)
#define __BIOS_H
#if !defined(___DEFS_H)
#include <_defs.h>
#endif
#if !defined(RC_INVOKED)
#if defined(__STDC__)
#pragma warn -nak
#endif
#endif /* !RC_INVOKED */
#ifdef __cplusplus
extern "C" {
#endif
#if !defined(_Windows)
/* 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 */
unsigned _RTLENTRY _bios_disk(unsigned __cmd, struct diskinfo_t _FAR *__dinfo);
int _RTLENTRY biosdisk(int __cmd, int __drive, int __head, int __track,
int __sector, int __nsects, void _FAR *__buffer);
#endif /* !_Windows */
#if !defined(_Windows) || defined(__DPMI16__) || defined(__DPMI32__)
/* 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 */
unsigned _RTLENTRY _bios_keybrd(unsigned __cmd);
unsigned _RTLENTRY _bios_printer(unsigned __cmd, unsigned __port, unsigned __abyte);
unsigned _RTLENTRY _bios_serialcom(unsigned __cmd, unsigned __port, unsigned __abyte);
int _RTLENTRY bioscom(int __cmd, char __abyte, int __port);
int _RTLENTRY bioskey(int __cmd);
int _RTLENTRY biosprint(int __cmd, int __abyte, int __port);
#endif /* !_Windows || __DPMI16__ || __DPMI32__ */
#if !defined(__WIN32__) || defined(__DPMI32__)
/* cmd values for _bios_timeofday() */
#define _TIME_GETCLOCK 0 /* get clock count */
#define _TIME_SETCLOCK 1 /* set clock count */
/* Constants for biostime() */
#define _BIOS_CLOCKS_PER_SEC 18.2
#define _BIOS_CLK_TCK _BIOS_CLOCKS_PER_SEC
/* 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 */
unsigned _RTLENTRY _bios_equiplist(void);
unsigned _RTLENTRY _bios_memsize(void);
unsigned _RTLENTRY _bios_timeofday(unsigned __cmd, long _FAR *__timeval);
int _RTLENTRY biosequip(void);
int _RTLENTRY biosmemory(void);
long _RTLENTRY biostime(int __cmd, long __newtime);
int _RTLENTRY int86(int __intno,
union REGS _FAR *__inregs,
union REGS _FAR *__outregs );
int _RTLENTRY int86x(int __intno,
union REGS _FAR *__inregs,
union REGS _FAR *__outregs,
struct SREGS _FAR *__segregs );
#endif /* !__WIN32__ || __DPMI32__ */
#ifdef __cplusplus
}
#endif
#if !defined(RC_INVOKED)
#if defined(__STDC__)
#pragma warn .nak
#endif
#endif /* !RC_INVOKED */
#endif /* __BIOS_H */