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Emma 02 1.36


Emma 02 is a multi-system computer emulator for various platforms. The emulation core was based on the RCS Elf Emulator copyright (C) 2006 by Michael H Riley.


The Emma 02 emulator runs on Windows, Mac OS X and Linux. On this site I have described all emulated computers including all information I have collected to be able to write the emulator. Some information might be incomplete and possibly incorrect.


If you find any of the missing information, errors on these pages or bug reports on the emulator itself please drop me an email (email address is provided in the 'about' window of the emulator) alternatively post to our COMX Club forum or Emma 02 Facebook page.


the Emma 02 emulator is currently emulating the following computers:

  • COMX-35
  • Cosmac Elf 2000
  • Cosmicos
  • Cosmac Elf
  • Netronics Elf II
  • Quest Super Elf
  • Membership Card
  • VIP2K Membership Card
  • VELF
  • FRED 1
  • FRED 1.5
  • Microtutor
  • Microtutor II
  • CDP18S020 Evaluation Kit
  • Cosmac VIP
  • Cosmac VIP II
  • Microboard System, supporting CPU boards CDP18S600 to CDP18S610
    • CDP18S600 Microboard
    • CDP18S601 Microboard
    • CDP18S603A Microboard
  • MCDS, Microboard Computer Development System
  • MS 2000, MicroDisk Development System
  • RCA Video Coin Arcade
  • RCA Studio II
  • RCA Studio III / Victoy MPT-02
  • RCA Studio IV
  • Visicom COM-100
  • Cidelsa
  • Telmac TMC-600
  • Telmac 1800
  • Telmac 2000
  • Pecom 32 and 64
  • ETI 660


For detailed information, documentation and software about the COMX-35 please see our COMX Club pages.


Go to the download page to download the latest emulator release.


All source files can be found on https://github.com/etxmato/emma_02



  • Added Infinite UC1800 Emulator
  • Added VIP II RCA option based on recently discovered VIP II schematics
  • Corrected bug in handling of empty wav files on startup of gui

Bug fixes

  • Membership Card
  • Added support for front panel 'J'
  • Included 'Adventure+' game and configuration file

Microboard System, MS2000

  • Added UT70 SW, including some corrections in upd765 emulation

Video Terminal

  • Added option to surpress error ESC sequences


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