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2^x bits | Imapenguin

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2026

Matrix Math on a Commodore 64original ↗
8 Jun 2026
The SID Chip Is a Reservoir Computeroriginal ↗
3 Jun 2026
WOZMON, Eight CPUs, and a Paper Tapeoriginal ↗
14 May 2026
Forty-Three Quintillion on a Commodore 64original ↗
8 May 2026
Fixing a Timex Sinclair 2068 and Porting the Bond Mazeoriginal ↗
30 Apr 2026
Biological Processing Units and a Commodore 64original ↗
24 Apr 2026
Breaking Enigma with Index of Coincidence on a Commodore 64original ↗
31 Mar 2026
The Wallis Product for Pi on the C64original ↗
14 Mar 2026
Enigma Ring Settings on the Commodore 64original ↗
25 Feb 2026
Breaking Enigma on the Commodore 64original ↗
24 Feb 2026
Enigma Emulator on the Commodore 64original ↗
20 Feb 2026
10 PRINT on the Apple IIoriginal ↗
15 Jan 2026
The Math Behind Enigmaoriginal ↗
8 Jan 2026

2025

Sorting Algorithms Visualized on the Commodore 64original ↗
17 Dec 2025
First Principles: Why You Must Learn Before You Promptoriginal ↗
26 Nov 2025
Dorothy Vaughan: Adapt or Become Obsoleteoriginal ↗
24 Nov 2025
Three Maze Generators on the Commodore 64original ↗
30 May 2025
16-bit Unsigned AND on Commodore 64original ↗
20 May 2025
The Best Book Cover of All Timeoriginal ↗
16 May 2025
10 PRINT for the KIM-1original ↗
16 May 2025
10PRINT and 100 Doors on the PicoCalc from Clockwork Pioriginal ↗
26 Mar 2025
PICO-8 100 Doors Problemoriginal ↗
16 Jan 2025
10 Print on PICO-8original ↗
10 Jan 2025

2024

Dragon Curvesoriginal ↗
13 Sept 2024
10 PRINT in Rust vs Coriginal ↗
30 Jul 2024
wAx the VIC-20original ↗
19 Apr 2024
10 PRINT on the HP-42soriginal ↗
5 Apr 2024
The McNuggets Problemoriginal ↗
21 Mar 2024
Back to the basics with BASIC (and Python): Binary Searchoriginal ↗
13 Mar 2024
Machine Language: Count Faster on 6502original ↗
11 Jan 2024
Visualize and verify the reverse engineered Commodore 64 SID LFSRoriginal ↗
3 Jan 2024

2023

A Gentle Introduction to LFSRsoriginal ↗
21 Dec 2023
Quick Post: Printing binary numbers in Commodore BASIC 2.0original ↗
19 Dec 2023
10 Print on the TI-92original ↗
30 Nov 2023
A gentle introduction to two's complementoriginal ↗
21 Nov 2023
N-Queens problemoriginal ↗
12 Oct 2023
Rail Fence Cipher on Commoodore 64 and TI 99/4Aoriginal ↗
8 Sept 2023
Rail Fence Cipher on Commoodore 64 and TI 99/4Aoriginal ↗
8 Sept 2023
A grid drawing rabbit holeoriginal ↗
11 Aug 2023
10 PRINT on the Rockwell AIM 65original ↗
28 Jun 2023
Building a software serial bridgeoriginal ↗
5 May 2023
Blinkenlightsoriginal ↗
2 Mar 2023
40 years on, this is still the best maze algorithmoriginal ↗
26 Jan 2023

2022

Validating Pilishoriginal ↗
1 Dec 2022
My mostly retro writing platform contenders in National Novel Writing Month for 2022 NaNoWriMooriginal ↗
21 Oct 2022
Adding very large integers in 8 Bit BASICoriginal ↗
15 Jul 2022
MOS paper tape formatoriginal ↗
7 Jul 2022
A little more speed from the 6502original ↗
22 Jun 2022
How fast can a 6502 transfer memoryoriginal ↗
14 Jun 2022
Almost primes with TinyBASIC on the KIM-1 clone: PAL-1original ↗
25 May 2022
VIC’s Revenge, the drop-in replacement for the VIC-20 VIC chip Part 1: Introduction, design goals, and FAQsoriginal ↗
15 May 2022
64 Bit Addition and Products on Commodore: The Wheat and Chessboard problemoriginal ↗
10 May 2022
Vicky-20 S Video Mod Resultsoriginal ↗
5 May 2022
Yet another version of the 100 door problem; this time, let's extend Commodore BASIC to add PRINT @, shall we?original ↗
4 May 2022
Simple exponents on an HP-16coriginal ↗
27 Mar 2022
Fibonacci 1-10 on the KIM-1 (and clones)original ↗
24 Mar 2022
The terrible random number generation in the Commodore 64 (and 128)original ↗
21 Mar 2022
Getting green and amber screens from a MiniPET 40/80original ↗
16 Mar 2022
Getting green and amber screens from a MiniPET 40/80original ↗
16 Mar 2022
Simple splitting the screen with two colors on the Commodore 64original ↗
28 Feb 2022
A visual 100 Door Problem solution in Pythonoriginal ↗
11 Jan 2022

2021

Permutations of 1 to 9 in Python, BASIC, and 6502 Assemblyoriginal ↗
20 Dec 2021
Making and breaking codes Part 14- VIC Cipher on the Commodore VIC-20original ↗
16 Dec 2021
Can you do Advent of Code on 8-Bit Machines?original ↗
14 Dec 2021
Quick Tower of Hanoi with Sound on the Commodore 64original ↗
28 Oct 2021
Dice frequencyoriginal ↗
28 Oct 2021
A week of diving a little deeper into my Atari 800XLoriginal ↗
8 Oct 2021
Two weeks with a Coco 2 in Septemberoriginal ↗
6 Oct 2021
Slot Game On Tandy TRS-80 Pocket Computer PC-4original ↗
9 Sept 2021
Calculating Pi via the Gregory-Leibniz series in BASIC on the Tandy Color Computer 2original ↗
3 Sept 2021
Just for fun, the 100 door problem on several different systemsoriginal ↗
5 Aug 2021
Recreational Math Challenge: Border Crossings - but on 40 year old computersoriginal ↗
19 Jul 2021
Running Commodore 64 BASIC Programs on a PEToriginal ↗
18 Jul 2021
The CERBERUS 2080original ↗
9 Jul 2021
Making and Breaking Ciphers with Commodore 64 - The Vigenère Cipheroriginal ↗
23 Jun 2021
Making and breaking Ciphers on the Commodore 64, er VIC-20 - Lagged Fibonacci Sequence and a little Monte Carlo while embracing contraintsoriginal ↗
9 Jun 2021
Quick Post: XOR in Commodore BASIC 2original ↗
3 Jun 2021
Running the 8 Bit Show and Tell VIC-20 Super Expander Programming Challenge on the Commodore 64original ↗
19 May 2021
The retro pinout projectoriginal ↗
18 May 2021
Quick Post: Modulus in BASIC 2 without a cartridgeoriginal ↗
15 May 2021
Making and breaking Ciphers on the Commodore 64 Part 12 - Pontifex - Solitaire from Cryptonomiconoriginal ↗
13 May 2021
Making and breaking Ciphers on the Commodore 64 Part 11 - One time pads on a Commodore 64, probably a bad ideaoriginal ↗
10 May 2021
Making and breaking Ciphers on the Commodore 64 Part 10 - Finding hash collisions with a type in game from 1984original ↗
28 Apr 2021
Making and Breaking Ciphers with Commodore 64 Part 9 - Finding Smallish Primesoriginal ↗
26 Apr 2021
Quick Post: Slow text on the Commodoreoriginal ↗
22 Apr 2021
The Commodore 64 N.O.O.C.U.L.A.R. futbal projectoriginal ↗
21 Apr 2021
Making and breaking Ciphers on the Commodore 64 Part 8 - RC4original ↗
19 Apr 2021
The Nostalgia Files: My all time favorite bookoriginal ↗
16 Apr 2021
Repairing a Commodore 128 and DIY Chris's RAM tester revieworiginal ↗
14 Apr 2021
Making and breaking Ciphers on the Commodore 64 Part 7 - Pseudo Random with Linear Congruential Generatorsoriginal ↗
6 Apr 2021
Making and Breaking Ciphers with a Commodore 64 - Part 6: XOR is Magical - Data recoveryoriginal ↗
1 Apr 2021
Finding the Prodigal Easter Egg inside the Easter Egg on a Commodore 64original ↗
29 Mar 2021
Quick post: Determining length in Commodore Assemblyoriginal ↗
29 Mar 2021
Benchmarking Retro Computers (mostly Commodore) with marginal methodsoriginal ↗
18 Mar 2021
Jiffies in Assemblyoriginal ↗
18 Mar 2021
Making and Breaking Ciphers with a Commodore 64 - Part 5: Wargamesoriginal ↗
16 Mar 2021
Calculating Pi via the Gregory-Leibniz series in BASIC on the VIC-20original ↗
13 Mar 2021
Quick Post: Commodore 64 Simple Addition Efficiencyoriginal ↗
13 Mar 2021
c0pperdragon verdictoriginal ↗
10 Mar 2021
Making and Breaking Ciphers with a Commodore 64 - Part 4: The PIN Program from Terminator 2original ↗
8 Mar 2021
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