Calypsi C, part 2: Using memory
Calypsi C, part 2: Using memory. Dan’s MEGA65 Digest for July 2026.
Dan Sanderson
Dan Sanderson
Latest posts
Classic Rogue
Classic Rogue. Dan’s MEGA65 Digest for June 2026.
Calypsi C
Calypsi C. Dan’s MEGA65 Digest for May 2026.
Pixie Power
Pixie Power. Dan’s MEGA65 Digest for April 2026.
Roguecraft DX; Introducing the Raster Rewrite Buffer
Roguecraft DX; Introducing the Raster Rewrite Buffer. Dan’s MEGA65 Digest for March 2026.
Every Pixel a Color
Every Pixel a Color. Dan’s MEGA65 Digest for November 2025.
Super Extended Attribute Mode
Super Extended Attribute Mode. Dan’s MEGA65 Digest for September 2025.
So Many Things
So Many Things. Dan’s MEGA65 Digest for August 2025.
Taste the Rainbow
Taste the Rainbow. Dan’s MEGA65 Digest for June 2025.
Gifts From Ray
Enjoy this sloppy collection of photos of vintage computer software, books, and hardware, recently gifted to me by Ray Carlsen.
Character Study
Character Study. Dan’s MEGA65 Digest for May 2025.
MEGA65: The First Ten Years
MEGA65: The First Ten Years. Dan’s MEGA65 Digest for April 2025.
What's New in v0.97
What’s New in v0.97. Dan’s MEGA65 Digest for March 2025.
Screenful of BASIC 2025 compo
Dan’s MEGA65 Digest for February 2025. A new BASIC code competition for the MEGA65 10th anniversary!
Hosting Update 2025
Greetings MEGA65 fans! I am updating the hosting situation of this newsletter. Hopefully this will be automatic for nearly everyone, and you don’t need to do anything. Here’s what you need to know.
Disassembling Crossroads, part 2
Disassembling Crossroads, part 2. Dan’s MEGA65 Digest for January 2025.
Santa's Souped-Up MEGA65
Santa’s Souped-Up MEGA65. Dan’s MEGA65 Digest for December 2024.
Disassembling Crossroads, part 1
Disassembling Crossroads, part 1. Dan’s MEGA65 Digest for November 2024.
Building a Sega game controller adapter
Thanks to the sega-adapter project by Eyvind Bernhardsen and the 8bitDo Retro Receiver, I can connect my Nintendo Switch Pro game controller to my MEGA65.
Up Up Down Down Left Right Left Right B A Start
Up Up Down Down Left Right Left Right B A Start. Dan’s MEGA65 Digest for October 2024.
Greetings from Chicagoland
Greetings from Chicagoland. Dan’s MEGA65 Digest for September 2024.
EasyAsm
EasyAsm. Dan’s MEGA65 Digest for August 2024.
Let's paint!
Let’s paint! Dan’s MEGA65 Digest for July 2024.
KERNAL of Truth
KERNAL of Truth. Dan’s MEGA65 Digest for June 2024.
Racing the Beam
Racing the Beam. Dan’s MEGA65 Digest for May 2024.
Oh right, April!
Oh right, April! Dan’s MEGA65 Digest for, uh, April 2024.
The Justified Ancients of Mu Mu
The Justified Ancients of Mu Mu. Dan’s MEGA65 Digest for March 2024.
Release Day!
MEGA65 platform release v0.96 is now available! This release is a culmination of 14 months of improvements to the FPGA core, the MEGA65 ROM, and system software. You can also now download the final version of the new User’s Guide PDF and Intro Disk software package. Everyone who owns a MEGA65 is encouraged to upgrade.
Sprite Attack!
Sprite Attack. Dan’s MEGA65 Digest for February 2024.
The New Hotness
The New Hotness. Dan’s MEGA65 Digest for January 2024.
robotfindskitten, part 3
robotfindskitten, part 3. Dan’s MEGA65 Digest for December 2023.
MEGA65 mousepads, posters, and new ways to support the Digest
45GS02 Quick Reference mousepads and posters now available, and a new way to support my work on the MEGA65 and the Digest !
robotfindskitten, part 2
robotfindskitten, part 2. Dan’s MEGA65 Digest for November 2023.
robotfindskitten, part 1
robotfindskitten, part 1. Dan’s MEGA65 Digest for October 2023.
Survey 2023 Results!
Survey 2023 Results. Dan’s MEGA65 Digest for September 2023.
The MEGA65 Community Survey 2023
The MEGA65 Community Survey 2023. Dan’s MEGA65 Digest for August 2023.
Cross Development for Fun and Profit, part 2
Cross Development for Fun and Profit, part 2. Dan’s MEGA65 Digest for July 2023.
Cross Development for Fun and Profit, part 1
Cross Development for Fun and Profit, part 1. Dan’s MEGA65 Digest for June 2023.
Bitmap Bonanza!
Bitmap Bonanza! Dan’s MEGA65 Digest for May 2023.
Bard on Lotto
I asked Google Bard , “What are the odds of winning the Washington State Lotto jackpot?” Its reply began with two sentences:
Fun with PETSCII!
Fun with PETSCII! Dan’s MEGA65 Digest for April 2023.
A Rorschach Test on Fire
A Rorschach Test on Fire. Dan’s MEGA65 Digest for March 2023.
What I Wish I Knew About Machine Language
What I Wish I Knew About Machine Language. Dan’s MEGA65 Digest for February 2023.
Exploring MEGA65 hardware
Exploring MEGA65 hardware. Dan’s MEGA65 Digest for January 2023.
Back to BASICs
Back to BASICs. Dan’s MEGA65 Digest for December 2022.
Ladder on a Modern PC
One of my favorite home computer games from early childhood is Ladder for the Kaypro, an action platformer rendered entirely in text characters. Here’s how to play it on your modern PC.
Advent of Code on the MEGA65
Advent of Code , the annual non-competitive puzzle event for computer programmers, has begun for 2022. Here are a few tips for anyone who might want to try this year’s AoC on the MEGA65.
Sounds of the SID
Sounds of the SID. Dan’s MEGA65 Digest for November 2022.
MEGA65 Adventures
MEGA65 Adventures! Dan’s MEGA65 Digest for October 2022.
MEGA65: The Next Batch!
MEGA65: The Next Batch! Dan’s MEGA65 Digest for September 2022.