Dump binary file with check sums like pages published on retro pc magazines.

dumplist.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

import sys
from optparse import OptionParser

#==============================================================================
def dump_block(addr, data):
    print('Add  +0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F :Sum')
    idx = 0
    asum = 0
    for y in range(16):
        print('{:04X} '.format(addr), end='')
        xsum = 0
        for x in range(16):
            xsum += data[idx]
            print('{:02X} '.format(data[idx]), end='')
            idx += 1
        xsum &= 0xff
        print(':{:02X}'.format(xsum))
        asum += xsum
        addr += 0x10

    print('--------------------------------------------------------')

    print('Sum  ', end='')
    for x in range(16):
        ysum = 0
        for y in range(16):
            ysum += data[y * 16 + x]
        ysum &= 0xff
        print('{:02X} '.format(ysum), end='')
    asum &= 0xff
    print(':{:02X}'.format(asum))
    print()

#==============================================================================
def dump_file(in_file, start):
    with open(in_file, 'rb') as in_fp:
        data = in_fp.read()
        if (len(data) % 256) > 0:
            data += b'\x00' * (256 - (len(data) % 256))

        addr = start
        for idx in range(0, len(data), 256):
            dump_block(addr, data[idx:idx+256])
            addr += 256

#==============================================================================
def main(options, args):
    try:
        if options.start.startswith('0x'):
            start = int(options.start[2:], 16)
        else:
            start = int(options.start)
    except:
        start = 0

    dump_file(args[0], start)

#==============================================================================
if __name__ == '__main__':
    parser = OptionParser(usage='Usage: %prog [options] binary_file')

    parser.add_option('-s', '--start',
                      type='str', dest='start', default='0x0000',
                      help='set START address', metavar='START')

    options, args = parser.parse_args()

    if len(args) != 1:
        parser.print_help()
        exit()

    main(options, args)