Inspecting C's qsort Through Animation
The C standard library includes a qsort() function for sorting arbitrary buffers given a comparator function. The name comes from its original Unix implementation, “quicker sort,” a variation of the well-known quicksort algorithm. The C standard doesn’t specify an algorithm, except to say that it may be unstable (C99 §7.20.5.2¶4) — equal elements have an unspecified order. As such, different C lib
Emacs Byte-code Internals
Byte-code compilation is an underdocumented — and in the case of the recent lexical binding updates, undocumented — part of Emacs. Most users know that Elisp is usually compiled into a byte-code saved to .elc files, and that byte-code loads and runs faster than uncompiled Elisp. That’s all users really need to know, and the GNU Emacs Lisp Reference Manual specifically discourages poking around too
How to build DOS COM files with GCC
Update 2018: RenéRebe builds upon this article in an interesting follow-up video (part 2). Update 2020: DOS Defender was featured on GET OFF MY LAWN. This past weekend I participated in Ludum Dare #31. Before the theme was even announced, due to recent fascination I wanted to make an old school DOS game. DOSBox would be the target platform since it’s the most practical way to run DOS applications
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Options for Structured Data in Emacs Lisp
Render the Mandelbrot Set with jq
Makefile Assignments are Turing-Complete
NASM x86 Assembly Major Mode for Emacs
Generic C Reference Counting