Subversion Repositories eco32

/*

 * endian.c -- endianness conversions

 */

#include "endian.h"

unsigned int read4FromEco(unsigned char *p) {

  return (unsigned int) p[0] << 24 |

         (unsigned int) p[1] << 16 |

         (unsigned int) p[2] <<  8 |

         (unsigned int) p[3] <<  0;

}

void write4ToEco(unsigned char *p, unsigned int data) {

  p[0] = data >> 24;

  p[1] = data >> 16;

  p[2] = data >>  8;

  p[3] = data >>  0;

}

void conv4FromEcoToNative(unsigned char *p) {

  unsigned int data;

  data = read4FromEco(p);

  * (unsigned int *) p = data;

}

void conv4FromNativeToEco(unsigned char *p) {

  unsigned int data;

  data = * (unsigned int *) p;

  write4ToEco(p, data);

}