IMD Labs

EhBASIC for the Ben Eater 6502 Breadboard Computer

August 23, 2026

101 BASIC Computer Games: Redux

August 5, 2026

EhBASIC for the Ben Eater 6502 Breadboard Computer

What is this? An as-is buildable-from-source/burnable/runnable version of Lee Davidson’s “EhBASIC”, based on Klaus Dormann’s patched version of EhBASIC v2.22, targeted at the stock Ben Eater 6502 breadboard computer (herein...

August 23, 2026

Retro Computing

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

Programmer’s HEX Pad

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...

July 12, 2026

Retro Computing