Blog – IMD Labs

101 BASIC Computer Games: Redux

August 5, 2026

101 BASIC Computer Games for Ben Eater’s 6502

July 24, 2026

6502-monitor-plus: Evolution

The first post I made on this blog was about an enhanced/extended version of the Arduino based 6502 address/data line monitor that Ben Eater uses in his video series on...

August 15, 2026

Retro Computing

101 BASIC Computer Games: Redux

This is a follow-up to my post “101 BASIC Computer Games for Ben Eater’s 6502“ In that post, I talked about porting games from David Ahl’s classic, 1973, book “101...

August 5, 2026

Retro Computing

I’ve been doing a lot more “work” (it’s all fun, really) on minimalist builds of various retro-computers. Bootstrapping some of these builds necessitates low-level code entry; for IPL this sometimes...

July 27, 2026

Hardware

101 BASIC Computer Games for Ben Eater’s 6502

TL;DR; or “Just Get to the Programs!” For reasons that you can read in the rest of this post, I was inspired to port the programs listed in David Ahl’s...

July 24, 2026

Retro Computing

(Further) Extending MS-BASIC (6502) – Part 3

Custom MS-BASIC Commands & HD44780 LCD Quirks In part 2 of this topic, I covered the usage of the extended/custom commands I’d added to MS-BASIC (6502), and found a quirk...

July 19, 2026

Retro Computing

(Further) Extending MS-BASIC (6502) – Part 2

Preamble & Pre-Requisites In part 1, I covered extending MS-BASIC’s “token table” to allow us to add more custom commands. Those changes are required to make use of what’s in...

July 18, 2026

Retro Computing

(Further) Extending MS-BASIC (6502) – Part 1

Further extending? Well, yes … provided you’ve built Ben Eater’s 6502 breadboard computer and followed his videos on first getting MS-BASIC running on it, then hacking it to add custom...

July 17, 2026

Retro Computing

EEPROMs, EEPROM Emulators & 27 vs. 28 series ICs

After addressing my fragility-nervosa regarding the frequent removal/insertion of AT28C256 EEPROMs in my Ben Eater 6502 build, by adding an elevated ZIF socket to the board, I still wanted a...

July 13, 2026

Retro Computing

Breadboards, EEPROMs and ZIF Sockets … oh my …

It didn’t take a lot of time writing code for the Ben Eater 6502 for me to get a little tired of removing the EEPROM, programming it, and reinserting it...