TinyELF is an emulator of 1802-based microcomputers that runs on Palm OS handhelds.

The RCA CDP1802 microprocessor was the basis for a number of small computers in the mid-70s through the early eighties. The original ELF was described in an August 1976 Popular Electronics article by Joseph Weisbecker, who later expanded the machine with more memory, a hexadecimal keypad and primitive video output. Several companies soon followed with 1802-based computers of their own.

Visit http://www.cosmacelf.com for more on the history of 1802-based computing, data sheets, document scans, a message board, related links and more. You'll even find Tom Pittman's A Short Course in Programming to teach you 1802 machine language and microprocessor concepts!

TinyELF features:

• Emulates both basic ELF and ELF II panel layouts.
• Automatically switches to accommodate video when the virtual 1861 Pixie graphics chip is activated.
• Selectable memory: 256 bytes, 4K or 16K.
• Save, load and delete 1802 programs.
• Comes with several test programs in an optionally installed database:
  • Starship Classic video display program.
  • Starship Animation program from Popular Electronics.
  • Seconds Clock video program by Tom Pittman (slightly modified to run faster on the emulator).
  • Output Test increments the hexadecimal display and flashes the Q LED.
• The TinyELF Palm Utility for Mac OS X is now available for easily importing and exporting programs.
• Freeware! Enjoy the program and feel free to share it with other classic computer enthusiasts!

This program was developed entirely on a Palm handheld using Quartus Forth and RsrcEdit.

Updated Description:

Version 1.10 adds:

• ASCII keyboard support.
• New display bitmaps for "classic" skin to more accurately represent that computer.
• New sample programs, including Tom Pittman's Tiny BASIC and V. G. Cayer's Kaleidoscope.
• Fix to an interrupt related problem with the IDL instruction.