26 lines
587 B
Python
26 lines
587 B
Python
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#!/usr/bin/env python3
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import sys
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import struct
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WORD_BE = struct.Struct(">I")
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WORD_LE = struct.Struct("<I")
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if __name__ == "__main__":
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if len(sys.argv) < 3:
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print("usage: xilswap.py <in> <out>")
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with open(sys.argv[1], "rb") as f:
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data = f.read()
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assert(len(data) % 4 == 0)
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print("total", len(data)//4)
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with open(sys.argv[2], "wb") as f:
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for i in range(len(data)//4):
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word = WORD_BE.unpack(data[i*4:i*4+4])[0]
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f.write(WORD_LE.pack(word))
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if i % 10000 == 0:
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print(i, "/", len(data)//4)
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