The homepage of Jan de Boer.

Software for the operating system Risc OS

!A310Emu (Apr 13th,2007)(310K)

An Archimedes-emulator for Strongarm-equipped RiscPC's & Iyonix ,for Arthur 1.1,RO2,RO3.1, memorysizes 0M5-16M (depending on OS). Sound and low-bit-per-pixel screenmodes must be improved. Supports two virtual ST506 harddiscs up to 256 Mb each. It's a work in progress, not everything works.

support1(803K)

support2(1096K)

Support files you might need for the correct working of the emulator.

!SplitPlus (33K) (last updated May 21, 2008)

An utility to chop files,too large for transfer, into manageable sizes; and to join the pieces to the original size again. For single files it works like !Split, but it can also handle selections and directories.

!Base64 (29K)

Utility to extract files from uuencoded or base64-coded texts

!ShineFrnt (15K)

Frontend for Shine, to convert batches of Wave files to MP3's

!RegGraph (173K)

Zap-like Basic editor. Registergraph (graphical live/dead register analysis), BASIC file compression,xref,simple program error checking.
Not ready (probably never), but useful because of the utilities.

!Sudoku12 (130K) (last updated Sun,Dec 16,2007)

Solve and create various types of Sudokus, inc. Hexadoku and Alfadoku. Output as textfiles and sprites. Some example files included+appl to create huge sudokus up to 256X256

Screengrabber (2.5K)

A screengrabber. Works on almost anything. Read the source for instructions.

Nonogram (177K, May 13, 2008)

A program to solve the popular Nonogram/Griddler/Japanese-picture puzzles.