mirror of https://github.com/zeldaret/mm.git
59 lines
2.1 KiB
Python
Executable File
59 lines
2.1 KiB
Python
Executable File
#!/usr/bin/env python3
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import argparse
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from pathlib import Path
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try:
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import rabbitizer
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except ImportError:
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print("Missing dependency rabbitizer, install it with `python3 -m pip install 'rabbitizer>=1.0.0,<2.0.0'`")
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exit(1)
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try:
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import mapfile_parser
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except ImportError:
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print("Missing dependency mapfile_parser, install it with `python3 -m pip install 'mapfile-parser>=1.2.1,<2.0.0'`")
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exit(1)
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def decodeInstruction(bytesDiff: bytes, mapFile: mapfile_parser.MapFile) -> str:
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word = (bytesDiff[0] << 24) | (bytesDiff[1] << 16) | (bytesDiff[2] << 8) | (bytesDiff[3] << 0)
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instr = rabbitizer.Instruction(word)
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immOverride = None
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if instr.isJumpWithAddress():
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# Instruction is a function call (jal)
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# Get the embedded address of the function call
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symAddress = instr.getInstrIndexAsVram()
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# Search for the address in the mapfile
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symInfo = mapFile.findSymbolByVramOrVrom(symAddress)
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if symInfo is not None:
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# Use the symbol from the mapfile instead of a raw value
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immOverride = symInfo.symbol.name
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return instr.disassemble(immOverride=immOverride, extraLJust=-20)
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def firstDiffMain():
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parser = argparse.ArgumentParser(description="Find the first difference(s) between the built ROM and the base ROM.")
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parser.add_argument("-c", "--count", type=int, default=5, help="find up to this many instruction difference(s)")
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parser.add_argument("-v", "--version", help="Which version should be processed", default="n64-us")
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parser.add_argument("-a", "--add-colons", action='store_true', help="Add colon between bytes" )
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args = parser.parse_args()
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buildFolder = Path(f"build/{args.version}")
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BUILTROM = buildFolder / f"mm-{args.version}.z64"
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BUILTMAP = buildFolder / f"mm-{args.version}.map"
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EXPECTEDROM = Path(f"baseroms/{args.version}/baserom-decompressed.z64")
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EXPECTEDMAP = "expected" / BUILTMAP
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mapfile_parser.frontends.first_diff.doFirstDiff(BUILTMAP, EXPECTEDMAP, BUILTROM, EXPECTEDROM, args.count, mismatchSize=True, addColons=args.add_colons, bytesConverterCallback=decodeInstruction)
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if __name__ == "__main__":
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firstDiffMain()
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