mirror of
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116 lines
3.2 KiB
Python
116 lines
3.2 KiB
Python
# todo: extract all the files into their appropirate folders (using fileorder)
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# also turn the functions into while loops? pass start and end address
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import os
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slpm = open("extracted/SLPM_663.60", "rb")
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logfile = open("logfile.txt", "w", encoding="shift-jis")
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baseptr = 0xFFF80
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sector = 0x800
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filenamesize = 32
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terminator = "\x00"
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def extractfile(address, file):
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os.makedirs(f"{file}", exist_ok=True)
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datafile = open(f"extracted/{file}.BIN", 'rb')
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slpm.seek(address)
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filenameptr = slpm.read(4)
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filesize = slpm.read(4)
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filesectorstart = slpm.read(4)
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filesectorsize = slpm.read(4)
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filenameptr = int.from_bytes(filenameptr, "little")
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filesize = int.from_bytes(filesize, "little")
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filesectorstart = int.from_bytes(filesectorstart, "little")
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filesectorsize = int.from_bytes(filesectorsize, "little")
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filenameloc = filenameptr - baseptr
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slpm.seek(filenameloc)
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filename = slpm.read(filenamesize)
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filename = filename.decode(encoding="shift-jis", errors="backslashreplace")
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filename = filename[:filename.find(terminator)]
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filesectorstart = filesectorstart * sector
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filesectorsize = filesectorsize * sector
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datafile.seek(filesectorstart)
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filedata = datafile.read(filesize)
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newfile = open(f"{file}/{filename}", "wb")
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newfile.write(filedata)
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newfile.close
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return f"Address: {address:X}\tFile name: {filename}\tFilename location: {filenameloc:X}\tFilename pointer: {filenameptr:X}\tFile size: {filesize:X}\tFile data start in {file}.BIN: {filesectorstart:X}\tFile data sector size: {filesectorsize:X}"
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fileorder = 0
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fileptrstart = 0x001829D0
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fileptrend = 0x001875E0
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fileptr = fileptrstart
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logfile.write("\nDATA.BIN Files\n\n")
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while fileptr < fileptrend:
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logfile.write(f"{extractfile(fileptr, "DATA")}\tindex {fileorder}\n")
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fileptr += 16
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fileorder += 1
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def extractfolder(address, file):
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slpm.seek(address)
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foldernameptr = slpm.read(4)
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folderorderstart = slpm.read(4)
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foldercount = slpm.read(4)
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foldernameptr = int.from_bytes(foldernameptr, "little")
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folderorderstart = int.from_bytes(folderorderstart, "little")
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foldercount = int.from_bytes(foldercount, "little")
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foldernameloc = foldernameptr - baseptr
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slpm.seek(foldernameloc)
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foldername = slpm.read(filenamesize)
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foldername = foldername.decode(encoding="shift-jis", errors="backslashreplace")
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foldername = foldername[:foldername.find(terminator)]
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os.makedirs(f"{file}/{foldername}", exist_ok=True)
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return f"Address: {address:X}\tFolder name: {foldername}\tFoldername location: {foldernameloc:X}\tFilename pointer: {foldernameptr:X}\tFolder Order start {folderorderstart}\tFolder file count: {foldercount}\n"
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logfile.write("\nDATA.BIN Folders\n\n")
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folderptrstart = 0x001875E0
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folderptrend = 0x00187A18
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folderptr = folderptrstart
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while folderptr < folderptrend:
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logfile.write(f"{extractfolder(folderptr, "DATA")}")
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folderptr += 12
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# DATA0.BIN extractions
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fileorder = 0
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fileptrstart = 0x187A40
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fileptrend = 0x18E7C0
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fileptr = fileptrstart
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logfile.write("\nDATA0.BIN Files\n\n")
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while fileptr < fileptrend:
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logfile.write(f"{extractfile(fileptr, "DATA0")}\tindex {fileorder}\n")
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fileptr += 16
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fileorder += 1 |