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https://github.com/WRansohoff/game_and_watch_fun.git
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30 lines
1.0 KiB
Python
30 lines
1.0 KiB
Python
from capstone import *
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import sys
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###
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# Minimal ARM Cortex-M disassembler.
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# Input: a filename pointing to a file containing a
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# hexadecimal string containing sparse Thumb-2 machine code.
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#
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# This script depends on the 'SKIPDATA' option in Capstone,
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# which is currently only available in the 'next' branch.
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# So check that branch out and build it from source, don't
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# use a "pip install capstone" version.
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#
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# To save the output to a file, run:
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# "python3 hex_str_disas.py <input_filename> | tee <output_filename>"
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#
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# Just because the disassembler prints out an instruction doesn't
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# mean that the memory address contains valid code. Much of the
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# Game and Watch SPI Flash probably contains sprites, sounds, etc.
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###
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with open( sys.argv[ 1 ], 'r' ) as f:
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flash_log = f.read()
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flash_log_bytes = bytes.fromhex( flash_log.strip() )
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md = Cs( CS_ARCH_ARM, CS_MODE_THUMB )
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md.skipdata = True
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for ( addr, size, mnemonic, op_str ) in md.disasm_lite( flash_log_bytes, 0x90000000 ):
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print( "0x%x:\t%s\t%s"%( addr, mnemonic, op_str ) )
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