A fast and compact Forth implementation for the Texas Instruments TI-99/4A Home Computer. Written by Mark Wills in TMS9900 assembly language. A completely self-contained Forth programming environment, hosted on a plug-in cartridge.


  • Completely self-contained (plug-in cartridge)
  • Written by hand in assembly language for speed
  • Built in block editor
  • 80 column support
  • Uses standard format TI disks

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