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Ken Shirriff (@shirriff)

shirriff

Stars
649
Global Rank 45,929 (Top 2 %)
Followers 508
Registered almost 15 years ago
Most used languages

Python
27.8 %

JavaScript
11.1 %

HTML
11.1 %

C
11.1 %

Objective-C
5.6 %

C#
5.6 %

C++
5.6 %

Lua
5.6 %

Batchfile 5.6 %

Assembly
5.6 %

Verilog 5.6 %
Location 🇺🇸 United States
Country Total Rank 12,532
Country Ranking

Batchfile 242

Verilog 339

Assembly
410

Objective-C
824

HTML
3,834

C
5,085

Lua
5,853

Python
6,433

JavaScript
7,769

Arduino-TV-B-Gone

The TV-B-Gone software ported to the Arduino platform

bitcoin-code

Python example code for "Bitcoins the hard way: Using the raw Bitcoin protocol"

xc2064

Reverse engineering the XC2064 FPGA

ibm-system-360-50-simulator

Simulator of an IBM System/360 Model 50

TICalculatorJSSimulator

Simulate a 4-function TI calculator and the Sinclair Scientific calculator using the original source code

alto-bitcoin

Bitcoin mining on the Xerox Alto

z80-notes

Notes on the internals of the Z-80 chip.

ul914

A printed circuit board representation of the Fairchild μL914 dual-input NOR gate

alto-mandel

Mandelbrot for Xerox Alto, written in BCPL

alto-ethernet-interface

Interface to Xerox Alto's 3 Mb/s Ethernet

GBC-audio-chip

Reverse-engineered schematics for the IR3R53 audio amplifier chip used in the Game Boy Color

pru-blink

Blink demo, showing how to use the PRU microcontroller on the PocketBeagle

vga-fpga-fizzbuzz

Generate VGA video output for the FizzBuzz problem, using an FPGA

rope-simulator

Documentation of a core rope memory simulator for the Apollo Guidance Computer

groupmark

Proposal to add the group mark character from the IBM 1401 character set to Unicode

DAA

Investigation into the x86 DAA (Decimal Adjust after Addition) instruction

apollo-ranging

Generates the Apollo spacecraft ranging code using a Teensy

quine

Create a quine scarf

beepomatic

Circuit boards to beep out the backplane in the Apollo update test box

multi-branch-fractals

C# code to generate multi-branch fractals for z^2.5 + C

alto-display-image

Simple program to display an image on the Alto

1402-schematics

IBM 1402 card reader schematics

pup-wireshark

Wireshark plugin to decode Xerox Alto PUP packets