mirror of
https://github.com/zeldaret/oot.git
synced 2024-09-21 12:54:51 +00:00
51 lines
1.4 KiB
Python
51 lines
1.4 KiB
Python
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import os.path
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from os import path
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import sys
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import struct
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# Read in the original ROM
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if (path.exists("baserom_original.z64")):
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print("File 'baserom_original.z64' found.")
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with open("baserom_original.z64", mode='rb') as file:
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fileContent = file.read()
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elif (path.exists("baserom_original.n64")):
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print("File 'baserom_original.n64' found.")
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print("Byte swapping...")
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with open("baserom_original.n64", mode='rb') as file:
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fileContent = bytearray(file.read())
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# Byte Swap ROM
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# TODO: This is pretty slow at the moment. Look into optimizing it later...
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i = 0
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while (i < len(fileContent)):
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tmp = struct.unpack_from("BBBB", fileContent, i)
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struct.pack_into("BBBB", fileContent, i + 0, tmp[3], tmp[2], tmp[1], tmp[0])
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i += 4
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perc = float(i) / float(len(fileContent))
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if (i % (1024 * 1024 * 4) == 0):
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print(str(perc * 100) + "%")
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print("Byte swapping done.")
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else:
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print("Error: Could not find a baserom_original.z64 or baserom_original.n64.")
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sys.exit(1)
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# Strip the overdump
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print("Stripping overdump...")
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strippedContent = list(fileContent[0:0x3600000])
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# Patch the header
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print("Patching header...")
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strippedContent[0x3E] = 0x50
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# Write out our new ROM
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print("Writing new ROM 'baserom.z64'.")
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with open("baserom.z64", mode="wb") as file:
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file.write(bytes(strippedContent))
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print("Done!")
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