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8bitworkshop/tools/scramble/rom_scramble.py

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#!/usr/bin/python
import sys, zipfile
OUTFILE = 'scramble.zip'
ROMS = [
( "s1.2d", 0x0000, 0x0800),
( "s2.2e", 0x0800, 0x0800),
( "s3.2f", 0x1000, 0x0800),
( "s4.2h", 0x1800, 0x0800),
( "s5.2j", 0x2000, 0x0800),
( "s6.2l", 0x2800, 0x0800),
( "s7.2m", 0x3000, 0x0800),
( "s8.2p", 0x3800, 0x0800),
# ROM_REGION( 0x10000, "audiocpu", 0 )
( "ot1.5c", 0x0000, 0x0800),
( "ot2.5d", 0x0800, 0x0800),
( "ot3.5e", 0x1000, 0x0800),
# ROM_REGION( 0x1000, "gfx1", 0 )
( "c2.5f", 0x4000, 0x0800),
( "c1.5h", 0x4800, 0x0800),
# ROM_REGION( 0x0020, "proms", 0 )
( "c01s.6e", 0x5000, 0x0020),
]
fn = sys.argv[1]
with open(fn, 'rb') as f:
data = f.read()
print "Read %d bytes of %s" % (len(data), fn)
with zipfile.ZipFile(OUTFILE, 'w') as zipf:
for name,start,length in ROMS:
romdata = data[start:start+length]
if len(romdata) != length:
print "*** No data for %s (offset 0x%x)" % (name,start)
romdata = '\0' * length
zipf.writestr(name, romdata)
else:
print 'Wrote %s (%d bytes)' % (name, length)
zipf.writestr(name, romdata)