Faster variation of the ZX0 compressor adapted to the 6502

fast bootable Read Track/Sector routine (multi)

Byte-aligned, efficient lossless packer that is optimized for fast decompression on 8-bit micros

The reverse-engineered AY-3-8910 chip. Transistor-level schematics, verilog model and a testbench with tools, that can render register dump files into .flac soundtrack.

100s of games at your fingertips, as long as your fingertips are on an Apple ][

Apple II emulator for Windows

Obfuscated C Code

syzkaller is an unsupervised coverage-guided kernel fuzzer

cc65 - a freeware C compiler for 6502 based systems

guinea pig adventure (3D game)

a simple homebrew operating system for the Raspberry Pi

Linux kernel module for dynamicaly adding/removing bitbanged I²C hosts.

tools for setting and accessing advaned low-level CPU features

convert ASCII/ANSI art to a graphics files

Overhead benchmarks for the perf_event subsystem

Tom Bombem Classic Video Game

code for examining determinism of performance counters

Tools for manipulating Apple II dos33 filesystems

linux_logo in 26+ kinds of assembly language

A running-jumping-swordfighting game I made on the Apple II from 1985-89

Large collection of /proc/cpuinfo files

Code to drive alphanumeric LED CPU meter

Prints an ASCII logo and some system info

Test suite for the Linux perf_event subsystem