Repository with BASIC programs that work on the Compukit UK101. Original sources acknowledged where known.

They've (mostly) been tested using an implementation of Grant Searle's FPGA UK101 using the CEGMON monitor and 40K RAM expansion. There's also Tim Baldwin's Java based UK101 simulator if you don't fancy messing around with hardware.

1. Primes.bas - Program 6 from the UK101 Manual. Simple prime number generator.

2. Primes2.bas - A faster algorithm for generating prime numbers. Remove BASIC lines 195 and 196 if not running CEGMON.

3. Sunrise-sunset.bas - Program to calculate sunrise and sunset times for any given latitude / longitude. From Sky & Telescope, August 1994. Remove BASIC line 14 if not running CEGMON.

4. Acey-Ducey (Acey- Deucy).bas - Bizarre card game, probably bug-ridden, taken directly from the Compukit UK101 Manual - program 7.

5. Minefield.bas Minesweeper type game (needs original monitor MONUK02 ROM installed). Recovered from an internet forum - originally published in a magazine. Author unknown.

6. Visible.bas - Fill the visible display RAM with 16 rows of 48 characters A-P. (Original monitor)

7. Hundred.bas - The 100 door problem. Work out which doors will be open after inverting their status (i.e. closed/open) after 100 passes, where on the first pass all doors are visited, then every second door, then every third door and so on. (Original monitor)

8. Lepassetemps.bas - Le passe temps (Connect 4 type game). Original monitor (change BASIC line 20 to use CEGMON). Written by A. Knight and published in Practical Electronics magazine, July 1980.

9. Life.bas - An implementation of John Conway's Life game. Requires CEGMON and a 2K VDU RAM space (64x32).

10. TheValley-Version1.bas - An implementation of The Valley. No variations. Requires patched CEGMON, 32K RAM and a 2K VDU RAM space (64×32).

11. TheValley-Version2.bas - An implementation of The Valley. Most variations. Requires patched CEGMON, 32K RAM and a 2K VDU RAM space (64×32).

12. TheValley-Version3.bas - An implementation of The Valley. Limited variations. Requires patched CEGMON, 16K RAM and a 2K VDU RAM space (64×32).

13. TheValley-Version4.bas - An implementation of The Valley. Limited variations, identical to version 3. Requires standard CEGMON, 16K RAM, standard 1K VDU RAM space (48×16).

14. TheValley-Version5.bas - An implementation of The Valley. Limited variations, identical to version 3. Requires original monitor (MONUK02), 16K RAM, standard 1K VDU RAM space (48×16).

15. TheValley-Version6b.bas - An implementation of The Valley. Abbreviated. Requires original monitor (MONUK02), 8K RAM, standard 1K VDU RAM space (48x16). Important - the preloader for this version, TheValley-Version6a.bas, must be run first as it initialises the USR for getting keyboard input, along with the monster strengths for the game.