gavare.se

Some of my hobby projects (current and past):

GXemul is a framework for full-system computer architecture emulation, which emulates machines consisting of processors (ARM, MIPS, M88K, PowerPC, and SuperH) and surrounding hardware components. It is complete enough to allow several unmodified "guest" operating systems to run inside the emulator as if they were running on real hardware.   GXmap, a small program which draws maps. In its current form, it is probably only meaningful for ham radio operators.

Plants are fun. They can give inspiration for genetic algorithms and many other useful computer science topics.   FreeBSD + GNOME Live CD, a small patch to the freesbie-2.0.20070710 scripts, for building a Live CD which boots directly into a GNOME desktop.

• A small raytracer, which was one of the winners of the 17th IOCCC, for "Best use of Light and Spheres". Source can also be found here on ioccc.org. The program writes a PPM image to stdout, which can then be viewed with your favorite image viewer, e.g. ./prog > result.ppm; xv result.ppm. An "unobfuscated" version of the program can be found here: r3.c or here: (html-ized).

• freebsd-packages, a small program for browsing FreeBSD packages, comparing what's installed on a machine with the pre-compiled packages available via FTP, and also comparing with portaudit security notifications.

• A small web page about my Jornada 728, and experiments I do with it.

• Yoctix was a monolithic Unix-like x86 kernel which I wrote from scratch (1999-2001). Some important features were not implemented, or poorly implemented, but it worked well enough to run some unmodified a.out binaries from NetBSD and OpenBSD. When I got bored with monolithic kernels, I started working on YCX2, but then stopped to develop GXemul instead.

PGP key