P8000/WEGA/contrib/K5JB/global.h

140 lines
3.9 KiB
C

#if defined(__TURBOC__) || defined(__STDC__) || defined(LATTICE)
#define ANSIPROTO 1
#endif
#ifdef COH386 /* K5JB */
#undef NULL
#endif
#ifndef __ARGS
#ifdef ANSIPROTO
#define __ARGS(x) x
#else
#define __ARGS(x) ()
#endif
#endif
/* The "interrupt" keyword is non-standard, so make it configurable */
#ifdef __TURBOC__
#define INTERRUPT void interrupt
#else
#define INTERRUPT void
#endif
/* Global definitions used by every source file.
* Some may be compiler dependent.
*/
#define MK_FP(seg,ofs) ((void far *) \
(((unsigned long)(seg) << 16) | (unsigned)(ofs)))
/* Reversed pokeb and peekb here in in code to agree with Turbo C - K5JB */
#define pokew(a,b,c) (*((int far*)MK_FP((a),(b))) = (int)(c))
#define pokeb(a,b,c) (*((char far*)MK_FP((a),(b))) = (char)(c))
#define peekw(a,b) (*((int far*)MK_FP((a),(b))))
#define peekb(a,b) (*((char far*)MK_FP((a),(b))))
#define movblock(so,ss,do,ds,c) movedata(ss,so,ds,do,c)
#define outportw outport
#define inportw inport
#if defined(_OSK) && !defined(_UCC)
#define strchr index
#define strrchr rindex
char *strtok();
#else
/* for later Coherent compiler's benefit */
#ifdef COH386
#undef index
#undef rindex
#endif
#define index strchr
#define rindex strrchr
#endif
/* Indexes into binmode in files.c; hook for compilers that have special
* open modes for binary files
*/
#define READ_BINARY 0
#define WRITE_BINARY 1
#define APPEND_BINARY 2
extern char *binmode[];
/* not all compilers grok defined() */
#ifdef NODEFINED
#define defined(x) (x)
#endif
/* These two lines assume that your compiler's longs are 32 bits and
* shorts are 16 bits. It is already assumed that chars are 8 bits,
* but it doesn't matter if they're signed or unsigned.
*/
#ifdef _UCC
#include <types.h>
#else
typedef long int32; /* 32-bit signed integer */
typedef unsigned short int16; /* 16-bit unsigned integer */
#endif
#define uchar(x) ((unsigned char)(x))
#define MAXINT16 (int16)65535L /* Largest 16-bit integer */
/* Since not all compilers support structure assignment, the ASSIGN()
* macro is used. This controls how it's actually implemented.
*/
#ifdef NOSTRUCTASSIGN /* Version for old compilers that don't support it */
#define ASSIGN(a,b) memcpy((char *)&(a),(char *)&(b),sizeof(b));
#else /* Version for compilers that do */
#define ASSIGN(a,b) ((a) = (b))
#endif
/* Define null object pointer in case stdio.h isn't included */
/* Note that Turbo C and Unix Sys V stdio.h define NULL as 0. Coherent defines
* NULL as (char *)0. This code defined NULL as (void *)0. To be consistent
* I am voting with Turbo (Borland) and Unix C. (Note this may spawn warnings
* that constant is long in large and larger memory models. See stdio.h.)
* K5JB
*/
#ifndef NULL
/* General purpose NULL pointer */
#define NULL 0
#endif
#define NULLCHAR (char *)0 /* Null character pointer */
#define NULLFP (int (*)())0 /* Null pointer to function returning int */
#define NULLVFP (void (*)())0 /* Null pointer to function returning void */
#define NULLFILE (FILE *)0 /* Null file pointer */
/* General purpose function macros */
#define min(x,y) ((x)<(y)?(x):(y)) /* Lesser of two args */
#define max(x,y) ((x)>(y)?(x):(y)) /* Greater of two args */
/* Convert an address to a LONG value for printing */
#ifdef MSDOS
long ptr2long(); /* for fuzzy segment addresses */
#else
#define ptr2long(x) ((long) (x)) /* typecast suffices for others */
#endif
/* Extract a short from a long */
#define hiword(x) ((int16)((x) >> 16))
#define loword(x) ((int16)(x))
/* Extract a byte from a short */
#define hibyte(x) (((x) >> 8) & 0xff)
#define lobyte(x) ((x) & 0xff)
/* Extract nibbles from a byte */
#define hinibble(x) (((x) >> 4) & 0xf)
#define lonibble(x) ((x) & 0xf)
#if (defined(SYS5) || (defined(ATARI_ST) && defined(LATTICE)))
#define rindex strrchr
#define index strchr
#endif
#define CMARK versionf
/* Heavily used functions from the standard library */
char *index(),*rindex(),*malloc(),*calloc(),*tmpnam();
#ifndef _OSK
char *ctime();
#endif