an Amiga 1200 splitter and swapper for kickstart roms

splitRom.py

#!/usr/bin/env python3
import argparse


parser = argparse.ArgumentParser(description="Byteswap and split an Amiga 1200 ROM file")
parser.add_argument("infile", type=str, help="the ROM file to convert")
parser.add_argument("lo", type=str, help="filename for LO rom")
parser.add_argument("hi", type=str, help="filename for HI rom")
args = parser.parse_args()

with open(args.infile, "rb") as f:
    data = f.read()

lo=open(args.lo, "wb")
hi=open(args.hi, "wb")

for i in range(0, len(data), 4):
    lo.write((data[i+1]).to_bytes())
    lo.write((data[i]).to_bytes())

    hi.write((data[i+3]).to_bytes())
    hi.write((data[i+2]).to_bytes())

lo.close()
hi.close()