#!/bin/bash

/* f2rximg: Convert file to raw RX50 disk image

   Copyright (c) 1997-2024, Tarik Isani (xhomer@isani.org)

   This file is part of Xhomer.

   Xhomer is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License version 2 
   as published by the Free Software Foundation.

   Xhomer 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 Xhomer; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/


# This script converts a file (up to 400,000 bytes)
# into a raw RX50 disk image for transfer into 2.9BSD
#
# Invoke with:
#
#    f2rx filename
#
# Output:
#
#    filename.dsk (409,600 bytes)

FILE=$1

FSIZE=`wc -c ${FILE} | cut -d' ' -f1`

if [ ${FSIZE} -gt 400000 ]
then
  echo "Maximum supported file size is 400,000 bytes - please split the file"
  exit
fi

FSIZE_TXT=`printf "%010d" ${FSIZE}`

dd if=/dev/zero of=zero bs=409600 count=1 >& /dev/null
echo ${FSIZE_TXT} ${FILE} > header
cat header ${FILE} zero > f1
dd if=f1 of=f2 bs=409600 count=1 >& /dev/null
./lbn2xhomer f2 ${FILE}.dsk

rm f1 f2 header zero