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oot/tools/ichaindis.py
Ethan Roseman dcdaf850b6
Decompiled ovl_Bg_Spot18_Obj (#204)
* Decompiled ovl_Bg_Spot18_Obj

* quick fix

* Added description to c file

* Update z_bg_spot18_obj.c

* PR suggestions

* PR suggestion
2020-06-17 08:02:28 -04:00

52 lines
1.3 KiB
Python
Executable file

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