#!/usr/bin/python
#
# File:		mk_zicog_floppy.py
#
# Author:	Michael Rychlik
#
# Version:	0.1
#
# Convert a SIMH AltairZ80 floppy disk image into an ZiCog floppy image
#
# SORRY to anyone reading this, this is a quick hack, no error checking etc etc.

input_file = 'zipm2.dsk'

output_file_name = 'zicog_floppy.img'

# Open the output image file
zicog_dsk = open(output_file_name, 'wb')
print "Processing:", input_file

# Open the input file
simh_dsk = open(input_file, 'rb')
tracks = 255
sectors_per_track = 32
sector_size = 128 
for sector in range(0, (tracks * sectors_per_track) - 1):
	# Read and discard the first three bytes of the sector
        junk = simh_dsk.read(3)

        # Read the sectors data bytes into the sector buffer
	sector = simh_dsk.read(sector_size);

        # Read and dispose of the sectors trailing junk
        junk = simh_dsk.read(6)

	# Write a sd block to the output file
	zicog_dsk.write(sector)

# Close this input file
simh_dsk.close

# Close the output file.
zicog_dsk.close

 