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should work (#37)

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petrie911 2023-11-29 05:40:43 -06:00 committed by GitHub
parent 31e564e5c8
commit cae711a312
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1 changed files with 14 additions and 1 deletions
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15
tools/comptool.py
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@ -31,6 +31,16 @@ def calculate_crcs(buffer: bytearray, seed=0xF8CA4DDC, start=0x1000, end=0x10100
return (t6 ^ t4 ^ t3, t5 ^ t2 ^ t1)
def fix_crc(rom):
with open(rom, 'r+b') as romfile:
crc1, crc2 = calculate_crcs(romfile.read())
romfile.seek(0x10)
romfile.write(crc1.to_bytes( 4, 'big'))
romfile.write(crc2.to_bytes( 4, 'big'))
return
def mio0_comp_bytes(decomp_bytes, mio0):
#possibly replace with a python implementation later
decomp_path = os.path.dirname(mio0) + '/TempComp.bin.mio0'
@ -215,6 +225,7 @@ parser.add_argument('-e', metavar='extract',dest='extract',help='directory for e
parser.add_argument('-c', action='store_true',help='compress provided ROM')
parser.add_argument('-d', action='store_true',help='decompress provided ROM')
parser.add_argument('-m', metavar='mio0',dest='mio0',help='Path to mio0 tool if not in same directory')
parser.add_argument('-r', action="store_true",help='Fix crc without compressing or decompressing')
# parser.add_argument('-v', action='store_true',help='show what changes are made')
if __name__ == '__main__':
@ -225,7 +236,9 @@ if __name__ == '__main__':
else:
mio0 = args.mio0
if args.c:
if args.r:
fix_crc(args.inROM)
elif args.c:
compress(args.inROM, args.outROM, mio0)
elif args.d or args.extract:
decompress(args.inROM, args.outROM, mio0, args.extract)