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OScompiler.h
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1992-02-11
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/*
* $Id: OScompiler.h,v 5.1 1992/02/12 00:21:36 jfc Exp $
*
* Copyright IBM Corporation 1987,1988,1989
*
* All Rights Reserved
*
* Permission to use, copy, modify, and distribute this software and its
* documentation for any purpose and without fee is hereby granted,
* provided that the above copyright notice appear in all copies and that
* both that copyright notice and this permission notice appear in
* supporting documentation, and that the name of IBM not be
* used in advertising or publicity pertaining to distribution of the
* software without specific, written prior permission.
*
* IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
* IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
* ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
* WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*
*/
/* "@(#)compiler.h 3.1 88/09/22 09:31:34" */
#ifndef __COMPILER_DEPENDANCIES__
#define __COMPILER_DEPENDANCIES__
/* This File Contains all compiler dependant macros for the various
* different IBM machines and their compilers:
* rt's & PS/2's
*/
/* Are "volatile", "signed" or "const" Valid Declaration Modifiers ?? */
#ifdef _ANSI_DECLS_
#undef _ANSI_DECLS_
#endif
#ifdef __GNUC__
#define ANSICPP TRUE
#define _ANSI_DECLS_
#define alloca __builtin_alloca
#endif /* __GNUC__ */
#if defined(UNIXCPP) && !defined(ANSICPP)
#define APPEND_STRING(a,b) a/**/b
#else
#if defined(ANSICPP)
#define APPEND_STRING(a,b) a##b
#else
#define APPEND_STRING(a,b) /**/a\
b/**/
#endif
#endif
#ifdef __HIGHC__
/* The following defines are for MetaWare HighC (hc) compiler on IBM hardware */
pragma on(RECOGNIZE_LIBRARY) ;
#if defined(OLDHC) /* i.e. hc 1.4 */
#define MOVE( src, dst, length ) _move( src, dst, length )
#else /* i.e. hc 2.x */
#define MOVE( src, dst, length ) memcpy( dst, src, length)
#endif
#define MAX(a,b) _max(a,b)
#define MIN(a,b) _min(a,b)
#define ABS(x) _abs(x)
#define _ANSI_DECLS_ TRUE
#else /* Not metaware's hc */
#ifdef SYSV
#define MOVE( src, dst, length ) memcpy( dst, src, length)
#else
#define MOVE( src, dst, length ) bcopy( src, dst, length )
#endif
#define MAX(a,b) (((a)>(b))?(a):(b))
#define MIN(a,b) (((a)<(b))?(a):(b))
#define ABS(x) (((x)>0)?(x):-(x))
#endif /* Not metaware's hc */
/* fast inline move functions */
#if defined(__GNUC__) && defined(i386)
#define MOVEBYTE( src, dst, length ) \
({ void *__src = (src); \
void *__dst = (dst); \
unsigned long __length = (length); \
__asm volatile ("repe; smovb;" \
: /* no output */ \
: "D" (__dst), "S" (__src), "c" (__length) \
: "di", "si", "cx", "dx"); \
})
#define MOVEWORD( src, dst, length ) \
({ int *__src = (src); \
int *__dst = (dst); \
unsigned long __length = (length); \
__asm volatile ("repe; smovl" \
: /* no output */ \
: "D" (__dst), "S" (__src), "c" (__length) \
: "di", "si", "cx"); \
})
#else /* not (__GNUC__ && i386) */
#define MOVEBYTE( src, dst, length) MOVE( (src), (dst), (length) )
#define MOVEWORD( src, dst, length) MOVE( (src), (dst), (length)*sizeof(int) )
#endif /* __GNUC_ && i386 */
/* Are "volatile" & "const" Valid Declaration Modifiers ?? */
#if !defined(_ANSI_DECLS_) || defined(lint)
/* So that lint doesn't complain about constructs it doesn't understand */
#ifdef volatile
#undef volatile
#endif
#define volatile /**/
#ifdef const
#undef const
#endif
#define const /**/
#ifdef signed
#undef signed
#endif
#define signed /**/
#ifdef _ANSI_DECLS_
#undef _ANSI_DECLS_
#endif
#endif
#endif