Universal Disassembler program for 8-bit microprocessors

This is a simple disassembler for various 8-bit microprocessors. It reads a binary file specified on the command line and produces a disassembly. It requires Python 3. It has been tested on Linux but should work on any platform that supports Python. See the source code for more details.

The following CPUs are either supported or planned to be supported:

CPU Status

---

1802 planned

6502 done

65816 planned

65C02 planned

6800 done

6809 planned

6811 done

8008 planned

8051 planned

F8 planned

Z80 planned

usage: udis.py [-h] [-c CPU] [-n] [-a ADDRESS] [-i] filename

positional arguments:

filename Binary file to disassemble

optional arguments:

-h, --help show this help message and exit

-c CPU, --cpu CPU Specify CPU type (defaults to 6502)

-n, --nolist Don't list instruction bytes (make output suitable for assembler)

-a ADDRESS, --address ADDRESS Specify decimal starting address (defaults to 0)

-i, --invalid Show invalid opcodes as ??? rather than constants