mirror of
https://github.com/spicyjpeg/573in1.git
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120 lines
3.1 KiB
Python
Executable File
120 lines
3.1 KiB
Python
Executable File
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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__version__ = "0.3.4"
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__author__ = "spicyjpeg"
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import os
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from argparse import ArgumentParser, Namespace
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from pathlib import Path
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from shutil import copyfile
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from typing import ByteString, Sequence
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## Flash dump splitting
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_FLASH_BANKS: Sequence[str] = "m", "l", "j", "h"
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_FLASH_BANK_SIZE: int = 0x400000
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_PCMCIA_BANK_SIZE: int = 0x400000
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def splitFlash(inputPath: Path, outputPath: Path):
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with open(inputPath, "rb") as file:
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for bank in _FLASH_BANKS:
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with \
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open(outputPath / f"29f016a.31{bank}", "wb") as even, \
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open(outputPath / f"29f016a.27{bank}", "wb") as odd:
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data: ByteString = file.read(_FLASH_BANK_SIZE)
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even.write(data[0::2])
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odd.write(data[1::2])
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def splitPCMCIACard(inputPath: Path, outputPath: Path, card: int, size: int):
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name: str = f"pccard{card}_{size // 0x100000}mb"
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with open(inputPath, "rb") as file:
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for bank in range(1, (size // _PCMCIA_BANK_SIZE) + 1):
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with \
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open(outputPath / f"{name}_{bank}l", "wb") as even, \
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open(outputPath / f"{name}_{bank}u", "wb") as odd:
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data: ByteString = file.read(_PCMCIA_BANK_SIZE)
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even.write(data[0::2])
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odd.write(data[1::2])
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## Main
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_PCMCIA_CARD_SIZE: int = 32
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def createParser() -> ArgumentParser:
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parser = ArgumentParser(
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description = \
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"Converts a set of dump files generated by the tool (rtc.bin, "
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"flash.bin, pcmcia*.bin) to NVRAM files as used by MAME.",
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add_help = False
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)
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group = parser.add_argument_group("Tool options")
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group.add_argument(
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"-h", "--help",
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action = "help",
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help = "Show this help message and exit"
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)
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group = parser.add_argument_group("PCMCIA card options")
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for card in ( 1, 2 ):
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group.add_argument(
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f"-{card}", f"--pcmcia{card}-size",
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type = lambda value: int(value, 0),
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default = _PCMCIA_CARD_SIZE,
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help = \
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f"Set size of PCMCIA card in slot {card} in megabytes (default "
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f"{_PCMCIA_CARD_SIZE})",
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metavar = "value"
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)
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group = parser.add_argument_group("File paths")
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group.add_argument(
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"-o", "--output",
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type = Path,
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default = os.curdir,
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help = "Path to output directory (current directory by default)",
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metavar = "dir"
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)
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group.add_argument(
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"input",
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type = Path,
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help = "Path to directory containing dumped files"
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)
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return parser
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def main():
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parser: ArgumentParser = createParser()
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args: Namespace = parser.parse_args()
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converted: bool = False
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#if os.path.isfile(args.input / "bios.bin"):
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#copyfile(args.input / "bios.bin", args.output / "700a01.22g")
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#converted = True
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if os.path.isfile(args.input / "rtc.bin"):
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copyfile(args.input / "rtc.bin", args.output / "m48t58")
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converted = True
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if os.path.isfile(args.input / "flash.bin"):
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splitFlash(args.input / "flash.bin", args.output)
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converted = True
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for card, size in enumerate(( args.pcmcia1_size, args.pcmcia2_size ), 1):
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path: Path = args.input / f"pcmcia{card}.bin"
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if os.path.isfile(path):
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splitPCMCIACard(path, args.output, card, size * 0x100000)
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converted = True
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if not converted:
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parser.error("no suitable files to convert found in input directory")
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if __name__ == "__main__":
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main()
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