Merry Christmas

Michael Doornbos

Dec 24, 2020 • 1 min read

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Making and breaking Ciphers on the Commodore 64, er VIC-20 - Lagged Fibonacci Sequence and a little Monte Carlo while embracing contraints

We're on ANOTHER random number generation technique today. Let's work on the Lagged Fibonacci Sequence, a fun way to use the Fibonacci Sequence on itself to generate pseudo-random numbers. One of our long term goals is to add a bunch of tools to our toolbox. Making reusable components makes doing

Michael Doornbos Jun 9, 2021 • 8 min read

Quick Post: XOR in Commodore BASIC 2

Maybe on a weekday evening you find yourself in need of some exclusive OR (XOR) operations on a machine that curiously doesn't have one built in. Like... BASIC 2 on the Commodore VIC-20 and 64! Why it doesn't have XOR is probably just another example of trying to save precious

Michael Doornbos Jun 3, 2021 • 3 min read

Running the 8 Bit Show and Tell VIC-20 Super Expander Programming Challenge on the Commodore 64

One of my favorite videos on the whole internet lately is this hidden gem by Robin. In it, he executes a programming challenge he found on Twitter to draw a pattern without using IF statements. His approach is one of my favorite math tricks of all time, and I was

Michael Doornbos May 19, 2021 • 3 min read

Evadot
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