flbase.c

电子盘DEMO板程序

/******************************************************************************/
/*                                                                            */
/*  Copyright (C), 1995-2006, msystems Ltd. All rights reserved.              */
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/*
 * $Log:   V:/PVCSDB/DiskOnChip/archives/Testing/TrueFFS 6.3/Drop 2.5/3/common/flbase.c-arc  $
 * 
 *    Rev 1.3   Sep 11 2006 13:45:20   yaniv.iarovici
 * Legal header added
 * 
 *    Rev 1.2   Aug 09 2006 16:52:48   Polina.Marimont
 * initial for DOC Driver 1.0
 */

#include "flbase.h"


void toUNAL(FLByte FAR0 *unal, FLWord n)
{
  unal[0] = FL2BYTE(n);
  unal[1] = FL2BYTE(n >> 8);
}


FLWord fromUNAL(FLByte const FAR0 *unal)
{
  return ((FLWord)unal[1] << 8) + unal[0];
}


/* calling another routines looks nice, but it is slower */

void toUNALLONG(FLByte FAR0 *le, FLDword n)
{
  le[0] = FL2BYTE(n);
  le[1] = FL2BYTE(n >> 8);
  le[2] = FL2BYTE(n >> 16);
  le[3] = FL2BYTE(n >> 24);
}

FLDword fromUNALLONG(FLByte const FAR0 *le)
{
  return ((FLDword)le[3] << 24) +
	 ((FLDword)le[2] << 16) +
	 ((FLDword)le[1] << 8) +
	 le[0];
}