VGA 640x480 Console Mode - Generate a VGA signal.

Opus Una - A Small Cooperative Multitasking Kernel.

- C library to access LPC17xx peripherals. It uses static inline functions, constant propagation and dead code elimination to be as fast as possible, which means faster than the mbed library and CMSIS.

V-USB MIDI Bass Pedals
V-USB MIDI Expression Pedal

I wrote and maintain several decoders and demuxers of the FFmpeg libraries.

I am the author and/or maintainer of several filters and output drivers of perhaps the best multimedia player for *nix.

Here's a small, lightweight JSON library I wrote in C. Used by the Hardware Detection Tool.

An autoclicker for Linux and other unices. Cheat with games ;)

A simple but fairly effective package manager for Minix 3, written in sh (Bourne Shell). Should ultimately turn into a homebrew distro. Currently on hold, but contains a collection of ports that might be of interest (heirloom toolchest, window maker, et cetera).

The repo contains a few side-projects:

Old. I'd redo it with inline functions. Still, it contains some nifty ideas for fast integer math.
Update: I released a beta version of the macro version on 2008-03-19 that contains everything that was committed to CVS in 2006. After that, I migrated the repo to Subversion and am now working on a rewrite. The macro version will not be developed any further.

My blog at AtariAge. Contains:

• demaxe - detokenize Macro-Assembler XE files
• demac65 - detokenize MAC/65 files
• Atari Eagle parts library
• shasm65 - a 6502 assembler in sh
• SID/SAP/NSF Disassembler
• SIO2PC PCB

A sortable MOS 6502 Opcode Table.

Atmas II Manual

Some guitar building stuff. Wiring, effects, sound hole templates and my own handmade guitars.

I have transcribed a few songs over the years. Most of them were hosted by olga.net. Currently, Olga is facing difficulties, so I'll host them here, too.

I volunteer to host a weekly radio show at Radio Domino. Here are some of my past setlists.

Page about a Dutch band.

I have collected information on several surnames:

• Van Poorten (Zeeland, Amsterdam, Overijssel, Gelderland, ...)
• Greven (Steenwijk, Overijssel, ...)
• Jeschar (Poland, Amsterdam, Eindhoven, ...) (note: ALL Dutch Jeschars are related)
• Capelle (Overijssel, Amsterdam, ...)
• Padding (Avereest, Overijssel, ...)

If you think you are related, you can contact me privately at ivop@euronet.nl and I can send you a login and password to access my private database (read-only).

Stuff you do when you are really bored.