PET · code
10 Print on the TI-92
Implementing 10PRINT on the TI-92 calculator using TI-BASIC. Also covers Python versions on the Numworks and TI-nspire calculators.
C64 · code
Building a software serial bridge
Modern and retro mix One of my favorite peices of retro clone hardware is Bob Corsham’s KIM-1 Clone. I’ve featured it many places like the …
C64 · code
40 years on, this is still the best maze algorithm
Exploring the elegant maze generator from Compute! magazine (December 1981). A line-by-line breakdown of how this classic BASIC algorithm works.
C64 · code
Validating Pilish
Writing code to validate Pilish text—prose where word lengths match the digits of Pi. Implementations in Julia and Commodore BASIC.
C64 · code
My mostly retro writing platform contenders in National Novel Writing Month for 2022 NaNoWriMo
Evaluating vintage computers for NaNoWriMo 2022: VIC-20, Plus/4, Commodore 64, and PET. Word processing on 8-bit machines with SpeedScript and other …
Commodore · code
Adding very large integers in 8 Bit BASIC
Adding integers with hundreds of digits using string manipulation in Commodore BASIC. When your numbers are too big for Wolfram Alpha.
C64 · code
64 Bit Addition and Products on Commodore: The Wheat and Chessboard problem
Implementing 64-bit arithmetic in 6502 assembly to solve the wheat and chessboard problem. Handling numbers too large for standard calculators on …
C64 · code
The terrible random number generation in the Commodore 64 (and 128)
Visualizing the poor randomness of RND() on the Commodore 64 and 128 compared to the PET and Plus/4. Clear patterns emerge when you plot the output.
Commodore · hardware
Getting green and amber screens from a MiniPET 40/80
Adding green and amber screen colors to the MiniPET 40/80 replica using a cheap monochrome VGA color adapter from Tindie.
C64 · code
Just for fun, the 100 door problem on several different systems
Solving the classic 100 door problem with visual output on multiple vintage systems: VIC-20, C64, PET, Atari, and Color Maximite.
C64 · code
Running Commodore 64 BASIC Programs on a PET
How to load and run Commodore 64 BASIC programs on a PET. Working around the PET’s lack of program relocation.