6af34837d2
- Standalone Python disassembler for 24-bit ADSP-219x instructions - Complete instruction set reference (PDFs + extracted text) - Architecture documentation and getting-started guide - Test ROM generator with packed (3-byte) and padded (4-byte) formats - r2pipe-based analysis script for radare2 integration
46 lines
1.3 KiB
Python
46 lines
1.3 KiB
Python
import r2pipe
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import json
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import sys
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# Load local disasm from disassembler dir
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sys.path.append("../disassembler")
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from adsp219x_disasm import decode_24
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def analyze_rom(filename):
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"""
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Automated ROM analysis using radare2 + Python disassembler.
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"""
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r2 = r2pipe.open(filename)
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r2.cmd("e asm.arch = adsp219x") # Custom arch handled by our script logic
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r2.cmd("aa") # Basic analysis (will fail but good practice)
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# Iterate over file bytes
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file_info = json.loads(r2.cmd("iX"))
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size = file_info[0]["size"]
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print(f"Analyzing {filename} ({size} bytes)...")
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# 3-byte step for ADSP-219x
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for offset in range(0, size, 3):
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# Read 3 bytes
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chunk = r2.cmdj(f"pxj 3 @ {offset}")
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if not chunk or len(chunk) < 3: break
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opcode = (chunk[0] << 16) | (chunk[1] << 8) | chunk[2]
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disasm = decode_24(opcode)
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# Set flags, comments, etc., back into r2
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r2.cmd(f"CC {disasm} @ {offset}")
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print(f"0x{offset:04X}: {disasm}")
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# Output comment report
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print("\nAnalysis Summary:\n")
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print(r2.cmd("CC"))
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r2.quit()
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if __name__ == "__main__":
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if len(sys.argv) < 2:
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print("Usage: analyze_rom.py <rom.bin>")
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else:
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analyze_rom(sys.argv[1])
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