#!/usr/bin/perl use strict; use FileHandle; my $fn = 'bin/td'; my $fh = FileHandle->new($fn, '+< :raw') or die "$fn: $!"; $fh->binmode(':raw'); $fh->seek(0x13d323b, 0); my $buf = "\x90\x90"; $fh->write($buf, 2); $fh->seek(0x13d3246, 0); $buf = "\x90\xe9"; $fh->write($buf, 2); $fh->close();