#! /usr/bin/perl

# From a binary image containing a user program, generate
# C code initializing a User_Program struct.

# $Revision: 1.1 $

use strict qw(refs vars);
use FileHandle;

if ( scalar(@ARGV) != 3 ) {
    print STDERR "usage: mkuprog <filename> <progname> <entry addr>\n";
    exit 1;
}

my $filename = shift @ARGV;
my $progname = shift @ARGV;
my $entryAddr = shift @ARGV;

my $fh = new FileHandle("<$filename");
(defined $fh) || die "Couldn't open $filename: $!\n";
binmode $fh;

my $dataArrayName = $progname . "Data";
my $structName = $progname . "Prog";
print "const unsigned char $dataArrayName"."[] = {\n";

my $LINEWIDTH = 10;

my $buf = chr(0) x $LINEWIDTH;
my $n;
my $size = 0;
while ( ($n = read( $fh, $buf, $LINEWIDTH )) > 0 ) {
    $size += $n;
    my $i;
    print "    ";
    for ( $i = 0; $i < $n; $i++ ) {
	my $c = ord( substr($buf, $i, 1) );
	printf( "0x%x,", $c );
    }
    print "\n";
}

print "};\n";

$fh->close();

print << "END";
const struct User_Program $structName = {
    "$progname",
    $size,
    $entryAddr,
    $dataArrayName
};
END