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53 lines
1.3 KiB
Python
53 lines
1.3 KiB
Python
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#!/usr/bin/python3
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import os
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import sys
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import struct
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import argparse
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ICHAIN_MACROS = [
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'ICHAIN_U8',
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'ICHAIN_S8',
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'ICHAIN_U16',
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'ICHAIN_S16',
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'ICHAIN_U32',
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'ICHAIN_S32',
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'ICHAIN_F32',
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'ICHAIN_F32_DIV1000',
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'ICHAIN_VEC3F',
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'ICHAIN_VEC3F_DIV1000',
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'ICHAIN_VEC3S',
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]
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def main():
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parser = argparse.ArgumentParser(description='Decompiles an InitChain')
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parser.add_argument('filename', help='ROM file path')
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parser.add_argument('offset', help='ROM offset to an InitChain')
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args = parser.parse_args()
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romOff = int(args.offset, 16)
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try:
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with open(args.filename, 'rb') as f:
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romData = f.read()
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except IOError:
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print('failed to read file' + args.filename)
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sys.exit(1)
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print ('static InitChainEntry initChain[] = {')
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while True:
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entry = struct.unpack('>I', romData[romOff:romOff+4])[0]
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romOff += 4
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cont = entry >> 31
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t = (entry >> 27) & 0xF
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offset = ((entry) >> 16) & 0x7FF
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value = (entry) & 0xFFFF
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print(' {0}(unk_{1:X}, {2}, {3}),'.format(ICHAIN_MACROS[t], offset, value, ('ICHAIN_CONTINUE' if cont == 1 else 'ICHAIN_STOP')))
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if cont == 0:
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break
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print ('};')
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if __name__ == "__main__":
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main()
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