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Diffstat (limited to '')
| -rw-r--r-- | private/mvdm/dos/v86/h/dos.h | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/private/mvdm/dos/v86/h/dos.h b/private/mvdm/dos/v86/h/dos.h new file mode 100644 index 000000000..55391560c --- /dev/null +++ b/private/mvdm/dos/v86/h/dos.h @@ -0,0 +1,220 @@ +/*** +*dos.h - definitions for MS-DOS interface routines +* +* Copyright (c) 1985-1988, Microsoft Corporation. All rights reserved. +* +*Purpose: +* Defines the structs and unions used for the direct DOS interface +* routines; includes macros to access the segment and offset +* values of far pointers, so that they may be used by the routines; and +* provides function prototypes for direct DOS interface functions. +* +*******************************************************************************/ + + +#ifndef NO_EXT_KEYS /* extensions enabled */ + #define _CDECL cdecl + #define _NEAR near +#else /* extensions not enabled */ + #define _CDECL + #define _NEAR +#endif /* NO_EXT_KEYS */ + + +#ifndef _REGS_DEFINED + +/* word registers */ + +struct WORDREGS { + unsigned int ax; + unsigned int bx; + unsigned int cx; + unsigned int dx; + unsigned int si; + unsigned int di; + unsigned int cflag; + }; + + +/* byte registers */ + +struct BYTEREGS { + unsigned char al, ah; + unsigned char bl, bh; + unsigned char cl, ch; + unsigned char dl, dh; + }; + + +/* general purpose registers union - + * overlays the corresponding word and byte registers. + */ + +union REGS { + struct WORDREGS x; + struct BYTEREGS h; + }; + + +/* segment registers */ + +struct SREGS { + unsigned int es; + unsigned int cs; + unsigned int ss; + unsigned int ds; + }; + +#define _REGS_DEFINED + +#endif + + +/* dosexterror structure */ + +#ifndef _DOSERROR_DEFINED + +struct DOSERROR { + int exterror; + char class; + char action; + char locus; + }; + +#define _DOSERROR_DEFINED + +#endif + + +/* _dos_findfirst structure */ + +#ifndef _FIND_T_DEFINED + +struct find_t { + char reserved[21]; + char attrib; + unsigned wr_time; + unsigned wr_date; + long size; + char name[13]; + }; + +#define _FIND_T_DEFINED + +#endif + + +/* _dos_getdate/_dossetdate and _dos_gettime/_dos_settime structures */ + +#ifndef _DATETIME_T_DEFINED + +struct dosdate_t { + unsigned char day; /* 1-31 */ + unsigned char month; /* 1-12 */ + unsigned int year; /* 1980-2099 */ + unsigned char dayofweek; /* 0-6, 0=Sunday */ + }; + +struct dostime_t { + unsigned char hour; /* 0-23 */ + unsigned char minute; /* 0-59 */ + unsigned char second; /* 0-59 */ + unsigned char hsecond; /* 0-99 */ + }; + +#define _DATETIME_T_DEFINED + +#endif + + +/* _dos_getdiskfree structure */ + +#ifndef _DISKFREE_T_DEFINED + +struct diskfree_t { + unsigned total_clusters; + unsigned avail_clusters; + unsigned sectors_per_cluster; + unsigned bytes_per_sector; + }; + +#define _DISKFREE_T_DEFINED + +#endif + + +/* manifest constants for _hardresume result parameter */ + +#define _HARDERR_IGNORE 0 /* Ignore the error */ +#define _HARDERR_RETRY 1 /* Retry the operation */ +#define _HARDERR_ABORT 2 /* Abort program issuing Interrupt 23h */ +#define _HARDERR_FAIL 3 /* Fail the system call in progress */ + /* _HARDERR_FAIL is not supported on DOS 2.x */ + +/* File attribute constants */ + +#define _A_NORMAL 0x00 /* Normal file - No read/write restrictions */ +#define _A_RDONLY 0x01 /* Read only file */ +#define _A_HIDDEN 0x02 /* Hidden file */ +#define _A_SYSTEM 0x04 /* System file */ +#define _A_VOLID 0x08 /* Volume ID file */ +#define _A_SUBDIR 0x10 /* Subdirectory */ +#define _A_ARCH 0x20 /* Archive file */ + +/* macros to break MS C "far" pointers into their segment and offset + * components + */ + +#define FP_SEG(fp) (*((unsigned *)&(fp) + 1)) +#define FP_OFF(fp) (*((unsigned *)&(fp))) + + +/* external variable declarations */ + +extern unsigned int _NEAR _CDECL _osversion; + + +/* function prototypes */ + +int _CDECL bdos(int, unsigned int, unsigned int); +void _CDECL _disable(void); +unsigned _CDECL _dos_allocmem(unsigned, unsigned *); +unsigned _CDECL _dos_close(int); +unsigned _CDECL _dos_creat(char *, unsigned, int *); +unsigned _CDECL _dos_creatnew(char *, unsigned, int *); +unsigned _CDECL _dos_findfirst(char *, unsigned, struct find_t *); +unsigned _CDECL _dos_findnext(struct find_t *); +unsigned _CDECL _dos_freemem(unsigned); +void _CDECL _dos_getdate(struct dosdate_t *); +void _CDECL _dos_getdrive(unsigned *); +unsigned _CDECL _dos_getdiskfree(unsigned, struct diskfree_t *); +unsigned _CDECL _dos_getfileattr(char *, unsigned *); +unsigned _CDECL _dos_getftime(int, unsigned *, unsigned *); +void _CDECL _dos_gettime(struct dostime_t *); +void _CDECL _dos_keep(unsigned, unsigned); +unsigned _CDECL _dos_open(char *, unsigned, int *); +unsigned _CDECL _dos_setblock(unsigned, unsigned, unsigned *); +unsigned _CDECL _dos_setdate(struct dosdate_t *); +void _CDECL _dos_setdrive(unsigned, unsigned *); +unsigned _CDECL _dos_setfileattr(char *, unsigned); +unsigned _CDECL _dos_setftime(int, unsigned, unsigned); +unsigned _CDECL _dos_settime(struct dostime_t *); +int _CDECL dosexterr(struct DOSERROR *); +void _CDECL _enable(void); +void _CDECL _hardresume(int); +void _CDECL _hardretn(int); +int _CDECL intdos(union REGS *, union REGS *); +int _CDECL intdosx(union REGS *, union REGS *, struct SREGS *); +int _CDECL int86(int, union REGS *, union REGS *); +int _CDECL int86x(int, union REGS *, union REGS *, struct SREGS *); +void _CDECL segread(struct SREGS *); + + +#ifndef NO_EXT_KEYS /* extensions enabled */ +void _CDECL _chain_intr(void (_CDECL interrupt far *)()); +void (_CDECL interrupt far * _CDECL _dos_getvect(unsigned))(); +unsigned _CDECL _dos_read(int, void far *, unsigned, unsigned *); +void _CDECL _dos_setvect(unsigned, void (_CDECL interrupt far *)()); +unsigned _CDECL _dos_write(int, void far *, unsigned, unsigned *); +void _CDECL _harderr(void (far *)()); +#endif /* NO_EXT_KEYS */ |