39 lines
809 B
Python
39 lines
809 B
Python
import sys
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desp = 0x2000
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numBytes = 0x2000
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firstByte = desp + 0x200
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lastByte = desp + numBytes - 1
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checksum1 = desp + 0x270
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checksum2 = desp + 0x271
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def calc_checksum(buffer):
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total = 0
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for i in range(firstByte, lastByte + 1):
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if i not in (checksum1, checksum2):
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total += buffer[i]
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total += 3328
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buffer[checksum1] = total % 256
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buffer[checksum2] = (total >> 8) % 256
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if len(sys.argv) != 3:
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print("Uso: python3 revert_armario.py save_in.srm save_out.srm")
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sys.exit(1)
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infile = sys.argv[1]
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outfile = sys.argv[2]
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with open(infile, "rb") as f:
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buf = bytearray(f.read())
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# revertir el byte del armario
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buf[0x0295C] = 0x3B
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# recalcular checksum
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calc_checksum(buf)
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with open(outfile, "wb") as f:
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f.write(buf)
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print("Hecho. Guarda generado:", outfile)
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