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//=============================================================================

//

//      split_words.c

//

//      Quick hack to handle splitting of binary images into .lo and .hi files

//

//=============================================================================

//####ECOSGPLCOPYRIGHTBEGIN####

// -------------------------------------------

// This file is part of eCos, the Embedded Configurable Operating System.

// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.

//

// eCos is free software; you can redistribute it and/or modify it under

// the terms of the GNU General Public License as published by the Free

// Software Foundation; either version 2 or (at your option) any later version.

//

// eCos is distributed in the hope that it will be useful, but WITHOUT ANY

// WARRANTY; without even the implied warranty of MERCHANTABILITY or

// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

// for more details.

//

// You should have received a copy of the GNU General Public License along

// with eCos; if not, write to the Free Software Foundation, Inc.,

// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.

//

// As a special exception, if other files instantiate templates or use macros

// or inline functions from this file, or you compile this file and link it

// with other works to produce a work based on this file, this file does not

// by itself cause the resulting work to be covered by the GNU General Public

// License. However the source code for this file must still be made available

// in accordance with section (3) of the GNU General Public License.

//

// This exception does not invalidate any other reasons why a work based on

// this file might be covered by the GNU General Public License.

//

// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.

// at http://sources.redhat.com/ecos/ecos-license/

// -------------------------------------------

//####ECOSGPLCOPYRIGHTEND####

//===========================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):    jskov

// Contributors: jskov

// Date:         2001-05-29

// Purpose:      Split binary ROM image into .hi and .lo parts for EPROMs

// Description:  Usage:

//                 split_words install/bin/redboot.bin

//

//               Will output file out.lo and out.hi which should be programmed

//               to the EPROMs.

//

//####DESCRIPTIONEND####

//

//=============================================================================

#include <sys/types.h>

#include <sys/stat.h>

#include <fcntl.h>

#include <unistd.h>

#include <stdio.h>

int

main(int argc, char** argv)

{

  int fi, f1, f2;

  ssize_t s1, s2;

  fi = open(argv[1], O_RDONLY);

  f1 = open("out.lo", O_WRONLY|O_CREAT|O_TRUNC, 0666);

  f2 = open("out.hi", O_WRONLY|O_CREAT|O_TRUNC, 0666);

  if (-1 == f1 || -1 == f2) {

    fprintf(stderr, "failed to open output files\n");

    return -1;

  }

  if (-1 == fi) {

    fprintf(stderr, "failed to open input file\n");

    return -1;

  }

  do {

    unsigned char b[4];

    s1 = read(fi, b, 4);

    if (s1 == 4) {

      write(f1, b, 2);

      write(f2, b+2, 2);

    }

  } while (s1);

  return 0;

}