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Exmon is an extended machine code monitor offering full debugging facilities and assembler interaction. It provides more than 35 new commands all executed in machine code.

If you are interested in using the assembler as a beginner or an experienced user, or would just like to have facilities like Disassemble, Move Memory, Verify, etc, instantly at your fingertips, then Exmon is about the best you can buy.

Exmon's features include:

  • Edit memory
  • Find ASCII string
  • Find string of hex bytes
  • Enter ASCII string
  • Move memory block
  • Verify that two blocks are the same
  • Relocate code to run at another location
  • Fill block of memory with given byte
  • Execute all * commands (e.g. *FX calls)
  • Breakpoint insertion for debugging
  • Special OSBYTE and OSWORD calls
  • Single-step facility with continuous register display and alteration

Your Computer (August 1983) reviewed Exmon as follows: "Beebug's Exmon is an exceptionally comprehensive machine code monitor... Exmon would be hard to improve upon. It manages to provide all the facilities you are likely to need in developing and testing machine code."

Comprehensive User Guide included.


Cover Art Language(s): English
Compatibility: Acorn Electron
Release: Professionally released On Cassette
Original Release Date: 1st Jan 1984
Links: Everygamegoing,

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Media Scan Images


Exmon (5.25" Disc)