A small freedom area.

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Dealing with the ARM AArch64 SIMD documentation

Fri 26 May 2017

The ARMv8 instruction set documentation has always been garbage, and particularly the SIMD sections. In comparison, the Intel documentation provides...

prog, fun

Templating in C

Sat 28 Feb 2015

The question of how to do templating in C is often raised, and I couldn't find a good overview of...


Butchering HQX scaling filters

Sat 21 Jun 2014

The [HQX filters][wphqx], namely hq2x, hq3x and hq4x, are well-known pixel art scalers. They are mainly used by old console...

algo, prog, reverse, fun, av, ffmpeg

Kanji 3D Mapping fun hack

Tue 14 May 2013

In my [previous post][learn-japanese], I tried to build a map of the Kanjis. The result was barely useful, and not...

trick, prog, opengl, fun

Learning Japanese the nerd way

Sun 24 Feb 2013

A few months ago, I finished school and quit my job around the same time. After waiting several years for...

mylife, thoughts, trick, whatever, prog, fun

Map for xkcd No:1110

Fri 21 Sep 2012

Three times a week, Randall Munroe draws a new comic entry on xkcd.com. This Wednesday, the comic was quite unusual...

fun, prog

Fun and canny optim for a Canny Edge Detector

Sat 08 Sep 2012

The *canny edge detector* is likely the most commonly implemented edge detection algorithm. It's generally a nice filter to write...

fun, trick, prog, algo, ffmpeg, av

DLX and reduced memory footprint

Tue 13 Mar 2012

The Dancing Links algorithm from [Donald Knuth][1] is a well-known method used to solve sudokus (and various other fun things...

prog, memory, algo

LAS Lossy Audio Spotter

Tue 09 Aug 2011

`FLAC` is supposed to be a lossless codec. Actually it is, but the source might not be. Stupid people, or...

music, audio analysis, prog, ffmpeg, fft, av

Reverse in Arakis

Mon 18 Apr 2011

While tidying my room last time, I ran into an "old" game made by [WideScreen Game] [1] (a French company...

reverse, game, dune, python, prog