236 lines
7.9 KiB
C++
236 lines
7.9 KiB
C++
|
/* dos.h - This file defines data structures for DOS access.
|
||
|
|
* $Version: 1.32 $
|
||
|
|
* Copyright (c) 1988-91 Intel Corporation, ALL RIGHTS RESERVED.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _dosh
|
||
|
|
#define _dosh
|
||
|
|
/*lint -library */
|
||
|
|
|
||
|
|
#pragma fixedparams("_dos_allocmem", "_dos_close", "_dos_creat")
|
||
|
|
#pragma fixedparams("_dos_creatnew", "_dos_findfirst", "_dos_findnext")
|
||
|
|
#pragma fixedparams("_dos_freemem", "_dos_getdate", "_dos_getdiskfree")
|
||
|
|
#pragma fixedparams("_dos_getdrive", "_dos_getfileattr", "_dos_getftime")
|
||
|
|
#pragma fixedparams("_dos_gettime", "_dos_open", "_dos_read")
|
||
|
|
#pragma fixedparams("_dos_setblock", "_dos_setdate", "_dos_setdrive")
|
||
|
|
#pragma fixedparams("_dos_setfileattr", "_dos_setftime", "_dos_settime")
|
||
|
|
#pragma fixedparams("_dos_write")
|
||
|
|
#pragma fixedparams("bdos", "_ctlcint", "dosexterr", "int86")
|
||
|
|
#pragma fixedparams("int86x", "intdos", "intdosx", "loadexec")
|
||
|
|
#pragma fixedparams("ptrdiff", "_quit", "sysint", "sysint21")
|
||
|
|
|
||
|
|
/*
|
||
|
|
* File attribute masks:
|
||
|
|
*/
|
||
|
|
#define _A_NORMAL 0x00 /* Normal file access, read/write OK */
|
||
|
|
#define _A_RDONLY 0x01 /* File is read-only */
|
||
|
|
#define _A_HIDDEN 0x02 /* File is hidden */
|
||
|
|
#define _A_SYSTEM 0x04 /* File is a system file */
|
||
|
|
#define _A_VOLID 0x08 /* File holds volume ID */
|
||
|
|
#define _A_SUBDIR 0x10 /* File is a subdirectory */
|
||
|
|
#define _A_ARCH 0x20 /* File needs to be archived */
|
||
|
|
|
||
|
|
|
||
|
|
#ifndef _FAR
|
||
|
|
#define _FAR far
|
||
|
|
#define _NEAR near
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* used by functions needing the DS register or seg. and off. of a pointer */
|
||
|
|
|
||
|
|
extern unsigned _dataseg;
|
||
|
|
|
||
|
|
#define DATASEG() _dataseg
|
||
|
|
|
||
|
|
#define FP_OFF(p) (((unsigned *)(&(p)))[0])
|
||
|
|
#define FP_SEG(p) (((unsigned *)(&(p)))[1])
|
||
|
|
#define _NP_OFF(p) ((unsigned)p)
|
||
|
|
#define _NP_SEG(p) _dataseg
|
||
|
|
|
||
|
|
#if !_FAR_DATA_ /* near data */
|
||
|
|
#define P_SEG(p) _NP_SEG(p)
|
||
|
|
#define P_OFF(p) _NP_OFF(p)
|
||
|
|
#else /* far or huge data */
|
||
|
|
#define P_SEG(p) FP_SEG(p)
|
||
|
|
#define P_OFF(p) FP_OFF(p)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define _doserrno ((_thread_ptr()->__doserrno)) /* DOS system error variable */
|
||
|
|
|
||
|
|
#pragma align (DOSERROR)
|
||
|
|
struct DOSERROR {
|
||
|
|
int exterror;
|
||
|
|
char class, action, locus;
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Structure used by loadexec function:
|
||
|
|
*/
|
||
|
|
#pragma align (pblock)
|
||
|
|
struct pblock {
|
||
|
|
unsigned env; /* segment address of environment */
|
||
|
|
char _FAR *com_line; /* program command line */
|
||
|
|
char _FAR *fcb1;
|
||
|
|
char _FAR *fcb2;
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Used by sysint() and sysint21():
|
||
|
|
*/
|
||
|
|
#pragma align (regval)
|
||
|
|
struct regval {
|
||
|
|
unsigned int ax, bx, cx, dx, si, di, ds, es, bp;
|
||
|
|
};
|
||
|
|
|
||
|
|
#ifndef _regs
|
||
|
|
#pragma align (DWORDREGS)
|
||
|
|
#pragma align (WORDREGS)
|
||
|
|
#pragma align (BYTEREGS)
|
||
|
|
union REGS {
|
||
|
|
struct DWORDREGS {unsigned eax, ebx, ecx, edx, esi,
|
||
|
|
edi, cflag, eflags, ebp;} w;
|
||
|
|
|
||
|
|
struct WORDREGS {unsigned ax, bx, cx, dx, si,
|
||
|
|
di, cflag, flags, bp;} x;
|
||
|
|
|
||
|
|
#if _ARCHITECTURE_ == 386 || _ARCHITECTURE_ == 486
|
||
|
|
|
||
|
|
struct BYTEREGS {unsigned al:8, ah:8, :16, bl:8, bh:8, :16,
|
||
|
|
cl:8, ch:8, :16, dl:8, dh:8, :16;} h;
|
||
|
|
#else
|
||
|
|
struct BYTEREGS {unsigned al:8, ah:8, bl:8, bh:8,
|
||
|
|
cl:8, ch:8, dl:8, dh:8;} h;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
#pragma align (SREGS)
|
||
|
|
struct SREGS {
|
||
|
|
unsigned short es, cs, ss, ds, fs, gs;
|
||
|
|
};
|
||
|
|
|
||
|
|
#define _regs
|
||
|
|
#endif /* _regs */
|
||
|
|
|
||
|
|
#ifndef _find_t
|
||
|
|
/* structure used by _dos_findfirst */
|
||
|
|
/*
|
||
|
|
* Structure used by _dos_findfirst:
|
||
|
|
*/
|
||
|
|
#pragma noalign (find_t)
|
||
|
|
struct find_t {
|
||
|
|
char reserved[21]; /* Reserved for DOS */
|
||
|
|
char attrib; /* Returned attribute */
|
||
|
|
unsigned short wr_time; /* Time file last written */
|
||
|
|
unsigned short wr_date; /* Date file last written */
|
||
|
|
long size; /* Size of file */
|
||
|
|
char name[13]; /* String containing the filename */
|
||
|
|
};
|
||
|
|
#define _find_t
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Structure used by _dos_getdate and _dos_setdate:
|
||
|
|
*/
|
||
|
|
#pragma align (dosdate_t)
|
||
|
|
struct dosdate_t {
|
||
|
|
unsigned char day; /* Range: 1-31 */
|
||
|
|
unsigned char month; /* Range: 1-12 */
|
||
|
|
unsigned short year; /* Range: 1980-2099 */
|
||
|
|
unsigned char dayofweek; /* Range: 0-6 (0=Sun, 1=Mon, etc.) */
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Structure used by _dos_gettime and _dos_settime:
|
||
|
|
*/
|
||
|
|
#pragma align (dostime_t)
|
||
|
|
struct dostime_t {
|
||
|
|
unsigned char hour; /* Range: 0-23 */
|
||
|
|
unsigned char minute; /* Range: 0-59 */
|
||
|
|
unsigned char second; /* Range: 0-59 */
|
||
|
|
unsigned char hsecond; /* Range: 0-99 */
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Structure used by _dos_getdiskfree:
|
||
|
|
*/
|
||
|
|
#pragma align (diskfree_t)
|
||
|
|
struct diskfree_t {
|
||
|
|
unsigned short total_clusters;
|
||
|
|
unsigned short avail_clusters;
|
||
|
|
unsigned short sectors_per_cluster;
|
||
|
|
unsigned short bytes_per_sector;
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Function prototypes:
|
||
|
|
*/
|
||
|
|
int bdos(int, unsigned int, unsigned int);
|
||
|
|
void _FAR _ctlcint(void);
|
||
|
|
unsigned _dos_allocmem(unsigned, unsigned *);
|
||
|
|
unsigned _dos_close(int);
|
||
|
|
unsigned _dos_creat(const char *, unsigned, int *);
|
||
|
|
unsigned _dos_creatnew(const char *, unsigned, int *);
|
||
|
|
unsigned _dos_findfirst(const char *, unsigned, struct find_t *);
|
||
|
|
unsigned _dos_findnext(struct find_t *);
|
||
|
|
unsigned _dos_freemem(unsigned);
|
||
|
|
void _dos_getdate(struct dosdate_t *);
|
||
|
|
unsigned _dos_getdiskfree(unsigned, struct diskfree_t *);
|
||
|
|
void _dos_getdrive(unsigned *);
|
||
|
|
unsigned _dos_getfileattr(const char *, unsigned *);
|
||
|
|
unsigned _dos_getftime(int, unsigned *, unsigned *);
|
||
|
|
void _dos_gettime(struct dostime_t *);
|
||
|
|
unsigned _dos_open(const char *, unsigned, int *);
|
||
|
|
unsigned _dos_read(int, void *, unsigned, unsigned *);
|
||
|
|
unsigned _dos_setblock(unsigned, unsigned, unsigned *);
|
||
|
|
unsigned _dos_setdate(struct dosdate_t *);
|
||
|
|
void _dos_setdrive(unsigned, unsigned *);
|
||
|
|
unsigned _dos_setfileattr(const char *, unsigned);
|
||
|
|
unsigned _dos_setftime(int, unsigned, unsigned);
|
||
|
|
unsigned _dos_settime(struct dostime_t *);
|
||
|
|
unsigned _dos_write(int, const void *, unsigned, unsigned *);
|
||
|
|
int dosexterr(struct DOSERROR *);
|
||
|
|
int int86(int, const union REGS *, union REGS *);
|
||
|
|
int int86x(int, const union REGS *, union REGS *, struct SREGS *);
|
||
|
|
int intdos(const union REGS *, union REGS *);
|
||
|
|
int intdosx(const union REGS *, union REGS *, struct SREGS *);
|
||
|
|
int loadexec(char _FAR *, struct pblock _FAR *, int);
|
||
|
|
long ptrdiff(void _FAR *, void _FAR *);
|
||
|
|
void _quit(int);
|
||
|
|
int sysint(unsigned, const struct regval *, struct regval *);
|
||
|
|
int sysint21(const struct regval *, struct regval *);
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Non-ANSI function also prototyped in stdlib.h
|
||
|
|
*/
|
||
|
|
#ifndef _stdlib_dos
|
||
|
|
#define _stdlib_dos
|
||
|
|
#pragma fixedparams("segread")
|
||
|
|
void segread(struct SREGS *);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef _dosh_builtin
|
||
|
|
#define _dosh_builtin
|
||
|
|
/*
|
||
|
|
* Processor status flag values:
|
||
|
|
*/
|
||
|
|
#define _FLAG_CARRY 0x0001 /* Carry flag */
|
||
|
|
#define _FLAG_PARITY 0x0004 /* Parity flag */
|
||
|
|
#define _FLAG_AUXCARRY 0x0010 /* Auxillary carry flag */
|
||
|
|
#define _FLAG_ZERO 0x0040 /* Zero flag */
|
||
|
|
#define _FLAG_SIGN 0x0080 /* Sign flag */
|
||
|
|
#define _FLAG_TRAP 0x0100 /* Trap flag */
|
||
|
|
#define _FLAG_INTERRUPT 0x0200 /* Interrupt enable flag */
|
||
|
|
#define _FLAG_DIRECTION 0x0400 /* Direction flag */
|
||
|
|
#define _FLAG_OVERFLOW 0x0800 /* Overflow flag */
|
||
|
|
#define _FLAG_IOPL 0x3000 /* IO privilege level mask */
|
||
|
|
#define _FLAG_NESTED 0x4000 /* Nested task flag */
|
||
|
|
#define _FLAG_RESUME 0x10000 /* Resume flag */
|
||
|
|
#define _FLAG_VM 0x20000 /* Virtual 86 mode */
|
||
|
|
|
||
|
|
#endif /* _dosh_builtin */
|
||
|
|
|
||
|
|
#endif /* _dosh */
|
||
|
|
|