shirriff/groupmark

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Created almost 10 years ago
Updated over 9 years ago

shirriff/groupmark

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

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

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