Flip.h

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// RC  4/24/2002  \HRandy95\Include\Flip.h

#define __FLIP_H

#ifndef __DATATYPE_H
#include "DataType.h"
#endif

inline void FlipShort( SHORT *short_ptr ) /* Flip bytes in short from 68000 to 8088 */
{
#ifndef _MAC
   short tmp;

   tmp = (((*short_ptr << 8) & 0xFF00) | ((*short_ptr>>8) & 0xFF));
   *short_ptr = tmp;
#endif
}
 
inline void FlipLong( LONG *long_ptr ) /* Flip bytes in long from 68000 to 8088 */
{
#ifndef _MAC
   LONG tmp;
  
   tmp = (((*long_ptr&0xFFL) << 24) | ((*long_ptr & 0xFF00L) << 8) |
    ((*long_ptr & 0xFF0000L) >> 8) | ((*long_ptr        >> 24) & 0xFFL));
   *long_ptr=tmp;
#endif
}

inline void FlipShort68k( short *short_ptr )
{
#ifdef _MAC
   short tmp;

   tmp = (((*short_ptr << 8) & 0xFF00) | ((*short_ptr>>8) & 0xFF));
   *short_ptr = tmp;
#endif
}

inline void FlipLong68k( long *long_ptr )
{
#ifdef _MAC
   LONG tmp;
    
   tmp = (((*long_ptr&0xFFL) << 24) | ((*long_ptr & 0xFF00L) << 8) |
    ((*long_ptr & 0xFF0000L) >> 8) | ((*long_ptr        >> 24) & 0xFFL));
   *long_ptr=tmp;
#endif
}

inline void ReverseBytes(void *v, int size)
{
#ifdef _MAC
   UBYTE buffer[8];
   UBYTE *s = (UBYTE *) v;
   
   int i;
   for ( i = 0; i < size; i++)
      buffer[i] = s[size-i-1];
      
   for (i=0; i<size; i++)
      s[i] = buffer[i];
#endif
}

inline void FlipDouble68k( double *double_ptr )
{
#ifdef _MAC
   ReverseBytes(double_ptr, 8);   
#endif
}

inline void FlipLongBits( ULONG *ptr )
{                  
#ifdef _MAC
   ULONG newptr = 0;
   for (int i = 0; i < 32; i++)
      if (*ptr & (1 << i))
         newptr |= (1 << (31-i));
   *ptr = newptr;
#endif
}
   

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