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
38 lines
1.2 KiB
Python
38 lines
1.2 KiB
Python
import sys
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import struct
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import os
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# Opcode constants
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TYPE1_NOP = 0xC00000
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TYPE6_AX0 = 0x400000
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TYPE10_JUMP_ALWAYS = 0x18000F
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TYPE30_NOP = 0x000000
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def create_rom(filename, format=3):
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"""
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Creates a synthetic ADSP-219x ROM with known instruction patterns.
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"""
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os.makedirs(os.path.dirname(filename), exist_ok=True)
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instructions = [
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TYPE30_NOP, # 0x0000: NOP
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TYPE6_AX0 | (0x1234 << 4), # 0x0001: AX0 = 0x1234
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TYPE10_JUMP_ALWAYS | (0x0100 << 4), # 0x0002: JUMP 0x0100
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# ... add more test patterns ...
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]
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with open(filename, "wb") as f:
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for ins in instructions:
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if format == 3:
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# Big-endian 3-byte pack
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f.write(struct.pack(">I", ins)[1:])
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else:
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# Big-endian 4-byte pad
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f.write(struct.pack(">I", ins))
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if __name__ == "__main__":
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# Ensure full path to base_test.bin
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base_dir = os.path.dirname(os.path.abspath(__file__))
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create_rom(os.path.join(base_dir, "test_roms/base_test.bin"), 3)
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create_rom(os.path.join(base_dir, "test_roms/padded_test.bin"), 4)
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print("Test ROMs generated in test_roms/")
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