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//=============================================================================
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//
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// split_words.c
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//
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// Quick hack to handle splitting of binary images into .lo and .hi files
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//
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//=============================================================================
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//####ECOSGPLCOPYRIGHTBEGIN####
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// -------------------------------------------
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// This file is part of eCos, the Embedded Configurable Operating System.
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// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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//
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// eCos is free software; you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation; either version 2 or (at your option) any later version.
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//
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// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with eCos; if not, write to the Free Software Foundation, Inc.,
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// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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//
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// As a special exception, if other files instantiate templates or use macros
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// or inline functions from this file, or you compile this file and link it
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// with other works to produce a work based on this file, this file does not
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// by itself cause the resulting work to be covered by the GNU General Public
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// License. However the source code for this file must still be made available
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// in accordance with section (3) of the GNU General Public License.
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//
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// This exception does not invalidate any other reasons why a work based on
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// this file might be covered by the GNU General Public License.
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//
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// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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// at http://sources.redhat.com/ecos/ecos-license/
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// -------------------------------------------
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//####ECOSGPLCOPYRIGHTEND####
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//===========================================================================
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//#####DESCRIPTIONBEGIN####
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//
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// Author(s): jskov
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// Contributors: jskov
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// Date: 2001-05-29
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// Purpose: Split binary ROM image into .hi and .lo parts for EPROMs
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// Description: Usage:
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// split_words install/bin/redboot.bin
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//
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// Will output file out.lo and out.hi which should be programmed
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// to the EPROMs.
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//
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//####DESCRIPTIONEND####
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//
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//=============================================================================
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <stdio.h>
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int
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main(int argc, char** argv)
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{
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int fi, f1, f2;
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ssize_t s1, s2;
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fi = open(argv[1], O_RDONLY);
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f1 = open("out.lo", O_WRONLY|O_CREAT|O_TRUNC, 0666);
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f2 = open("out.hi", O_WRONLY|O_CREAT|O_TRUNC, 0666);
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if (-1 == f1 || -1 == f2) {
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fprintf(stderr, "failed to open output files\n");
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return -1;
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}
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if (-1 == fi) {
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fprintf(stderr, "failed to open input file\n");
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return -1;
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}
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do {
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unsigned char b[4];
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s1 = read(fi, b, 4);
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if (s1 == 4) {
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write(f1, b, 2);
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write(f2, b+2, 2);
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}
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} while (s1);
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return 0;
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}
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