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/* $Header: d:/cvsroot/tads/TADS2/msdos/OSDOS.H,v 1.4 1999/07/11 00:46:37 MJRoberts Exp $ */
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* Copyright (c) 1998, 2002 Michael J. Roberts. All Rights Reserved.
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* Please see the accompanying license file, LICENSE.TXT, for information
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* on using and copying this software.
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osdos.h - MS-DOS system definitions
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10/17/98 MJRoberts - Creation
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/* include general DOS/Windows definitions */
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/* ------------------------------------------------------------------------ */
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* System name and long desription (for banner)
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# define OS_SYSTEM_NAME "DJGPP"
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# define OS_SYSTEM_NAME "MSDOS"
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#define OS_SYSTEM_LDESC "MS-DOS"
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/* ------------------------------------------------------------------------ */
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* File Opening - use stdio
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/* newline sequence - DOS/Windows use CR-LF */
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#define OS_NEWLINE_SEQ "\r\n"
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/* open text file for reading; returns NULL on error */
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/* osfildef *osfoprt(const char *fname, os_filetype_t typ); */
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#define osfoprt(fname, typ) fopen(fname, "r")
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/* open text file for 'volatile' reading; returns NULL on error */
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/* osfildef *osfoprtv(const char *fname, os_filetype_t typ); */
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#define osfoprtv(fname, typ) osfoprt(fname, typ)
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/* open text file for writing; returns NULL on error */
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/* osfildef *osfopwt(const char *fname, os_filetype_t typ); */
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#define osfopwt(fname, typ) fopen(fname, "w")
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/* open text file for reading/writing; don't truncate */
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osfildef *osfoprwt(const char *fname, os_filetype_t typ);
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/* open text file for reading/writing; truncate; returns NULL on error */
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/* osfildef *osfoprwtt(const char *fname, os_filetype_t typ); */
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#define osfoprwtt(fname, typ) fopen(fname, "w+")
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/* open binary file for writing; returns NULL on error */
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/* osfildef *osfopwb(const char *fname, os_filetype_t typ); */
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#define osfopwb(fname, typ) fopen(fname, "wb")
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/* open SOURCE file for reading - use appropriate text/binary mode */
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/* osfildef *osfoprs(const char *fname, os_filetype_t typ); */
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#define osfoprs(fname, typ) fopen(fname, "rb")
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/* open binary file for reading; returns NULL on erorr */
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/* osfildef *osfoprb(const char *fname, os_filetype_t typ); */
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#define osfoprb(fname, typ) fopen(fname, "rb")
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/* open binary file for 'volatile' reading; returns NULL on erorr */
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/* osfildef *osfoprbv(const char *fname, os_filetype_t typ); */
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#define osfoprbv(fname, typ) osfoprb(fname, typ)
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/* open binary file for reading/writing; don't truncate */
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osfildef *osfoprwb(const char *fname, os_filetype_t typ);
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/* open binary file for reading/writing; truncate; returns NULL on error */
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/* osfildef *osfoprwtb(const char *fname, os_filetype_t typ); */
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#define osfoprwtb(fname, typ) fopen(fname, "w+b")
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/* ------------------------------------------------------------------------ */
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* Set "busy" cursor on/off. For systems with a mouse cursor, set the
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* cursor to an appropriate shape to notify the user that the system is
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* busy. Does nothing on DOS.
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/* void os_csr_busy(int show_as_busy); */
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#define os_csr_busy(show_as_busy)
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/* ------------------------------------------------------------------------ */
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* If error messages are to be included in the executable, define
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* ERR_LINK_MESSAGES. Otherwise, they'll be read from an external
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* file that is to be opened with oserrop().
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#define ERR_LINK_MESSAGES
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/* ------------------------------------------------------------------------ */
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* Update progress display with linfdef info, if appropriate. This can
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* be used to provide a status display during compilation. Most
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* command-line implementations will just ignore this notification; this
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* can be used for GUI compiler implementations to provide regular
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* display updates during compilation to show the progress so far.
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#define os_progress(fname, linenum)
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/* ------------------------------------------------------------------------ */
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* Single/double quote matching macros. Used to allow systems with
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* extended character codes with weird quote characters (such as Mac) to
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* match the weird characters.
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#define os_squote(c) ((c) == '\'')
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#define os_dquote(c) ((c) == '"')
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#define os_qmatch(a, b) ((a) == (b))
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/* ------------------------------------------------------------------------ */
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* on 16-bit protected-mode DOS, we need to check manually for break, so
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* do this in os_yield; on other DOS versions, we don't need to do
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* anything in os_yield
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# define os_yield() FALSE
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/* ------------------------------------------------------------------------ */
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* theoretical maximum osmalloc size is all of memory
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# define OSMALMAX 0xffffffffL
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#else /* !__32BIT__ */
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# define OSMALMAX 0xffffL
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#endif /* __32BIT__ */
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/* ------------------------------------------------------------------------ */
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* Usage lines - for protected mode, we use different names for the
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* executables, so reflect that in the usage lines. This isn't needed
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* for the real-mode DOS versions, since they use the deault command
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# define OS_TC_USAGE "usage: tcx [options] file"
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# define OS_TR_USGAE "usage: trx [options] file"
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# define OS_TDB_USAGE "usage: tdbx [options] file"
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/* add the special TR option messages */
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#define ERR_TRUS_OS_FIRST ERR_TRUS_DOS_1
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#define ERR_TRUS_OS_LAST ERR_TRUS_DOS_L
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* If we're in 16-bit mode, either real or protected, reduce the default
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* stack size, since the real system stack is very constrained for these
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* executables. (The interpreter consumes system stack in proportion to
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* TADS stack space, so limiting the TADS stack will help ensure we
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* don't overflow system stack.)
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# define TRD_STKSIZ 100
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# define TRD_STKSIZ_MSG " -ms size stack size (default 100 elements)"
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# define OS_TC_USAGE "usage: tadsc [options] file"
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# define OS_TR_USAGE "usage: tadsr [options] file"
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* Make default buffer sizes huge, since we can be fairly liberal with
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#include "osbigmem.h"
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* Swapping off by default, since DJGPP has virtual memory
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# define OS_DEFAULT_SWAP_ENABLED 0
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* argv[0] required by dbgu.c
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extern char *__dos_argv0; /* from crt0.h */
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# define ARG0 __dos_argv0
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# ifndef TADS_OEM_NAME
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# define TADS_OEM_VERSION "0"
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# define OS_SYSTEM_PATCHSUBLVL "0"
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# define TADS_OEM_NAME "jim.dunleavy@erha.ie"
added
removed
tads/tads2/msdos/osdos.h
