114 lines
3.2 KiB
C
114 lines
3.2 KiB
C
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/*
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* $Log: V:/Flite/archives/TrueFFS5/Src/FLBASE.C_V $
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*
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* Rev 1.3 Sep 15 2001 23:45:32 oris
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* Changed BIG_ENDIAN to FL_BIG_ENDIAN
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*
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* Rev 1.2 Apr 09 2001 15:07:34 oris
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* End with an empty line.
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*
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* Rev 1.1 Apr 01 2001 07:45:30 oris
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* Updated copywrite notice
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*
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* Rev 1.0 Feb 04 2001 11:05:28 oris
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* Initial revision.
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*
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*/
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/***********************************************************************************/
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/* M-Systems Confidential */
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/* Copyright (C) M-Systems Flash Disk Pioneers Ltd. 1995-2001 */
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/* All Rights Reserved */
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/***********************************************************************************/
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/* NOTICE OF M-SYSTEMS OEM */
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/* SOFTWARE LICENSE AGREEMENT */
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/* */
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/* THE USE OF THIS SOFTWARE IS GOVERNED BY A SEPARATE LICENSE */
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/* AGREEMENT BETWEEN THE OEM AND M-SYSTEMS. REFER TO THAT AGREEMENT */
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/* FOR THE SPECIFIC TERMS AND CONDITIONS OF USE, */
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/* OR CONTACT M-SYSTEMS FOR LICENSE ASSISTANCE: */
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/* E-MAIL = info@m-sys.com */
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/***********************************************************************************/
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#include "flbase.h"
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#ifdef FL_BIG_ENDIAN
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/*----------------------------------------------------------------------*/
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/* Little / Big - Endian Conversion Routines */
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/*----------------------------------------------------------------------*/
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void toLEushort(unsigned char FAR0 *le, unsigned short n)
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{
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le[1] = (unsigned char)(n >> 8);
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le[0] = (unsigned char)n;
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}
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unsigned short fromLEushort(unsigned char const FAR0 *le)
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{
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return ((unsigned short)le[1] << 8) + le[0];
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}
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void toLEulong(unsigned char FAR0 *le, unsigned long n)
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{
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le[3] = (unsigned char)(n >> 24);
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le[2] = (unsigned char)(n >> 16);
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le[1] = (unsigned char)(n >> 8);
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le[0] = (unsigned char)n;
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}
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unsigned long fromLEulong(unsigned char const FAR0 *le)
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{
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return ((unsigned long)le[3] << 24) +
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((unsigned long)le[2] << 16) +
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((unsigned long)le[1] << 8) +
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le[0];
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}
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extern void copyShort(unsigned char FAR0 *to, unsigned char const FAR0 *from)
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{
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to[0] = from[0];
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to[1] = from[1];
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}
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extern void copyLong(unsigned char FAR0 *to, unsigned char const FAR0 *from)
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{
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to[0] = from[0];
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to[1] = from[1];
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to[2] = from[2];
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to[3] = from[3];
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}
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#else
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void toUNAL(unsigned char FAR0 *unal, unsigned short n)
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{
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unal[1] = (unsigned char)(n >> 8);
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unal[0] = (unsigned char)n;
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}
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unsigned short fromUNAL(unsigned char const FAR0 *unal)
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{
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return ((unsigned short)unal[1] << 8) + unal[0];
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}
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void toUNALLONG(Unaligned FAR0 *unal, unsigned long n)
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{
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toUNAL(unal[0],(unsigned short)n);
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toUNAL(unal[1],(unsigned short)(n >> 16));
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}
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unsigned long fromUNALLONG(Unaligned const FAR0 *unal)
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{
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return fromUNAL(unal[0]) +
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((unsigned long)fromUNAL(unal[1]) << 16);
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}
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#endif /* FL_BIG_ENDIAN */
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