John Linville
Blogs

Something New

October 1, 2020 John Linville

It has been a while since I have written anything here. Between some manufactured antagonism in the CoCo world and the COVID-19 affair in the real world, my capacity for fun has been zapped for months. I do not want to claim to have been “depressed”, solely because I do …

John Linville
Blogs

Space Assault Port to 6800

January 30, 2020 John Linville

Now, on to the bigger project I’ve been hinting at… :-)So…Space Assault is a clone of the well known arcade hit Space Invaders, produced for the Tandy Color Computer by The Image Producers, (written by Lou Haehn?) and released in 1981. Some time ago, Darren Atkinson took it upon himself …

John Linville
Blogs

Micro Chroma 68 Tape Storage

January 27, 2020 John Linville

In my previous post, I showed video of me loading and running code on an emulated Micro Chroma 68 (aka uchroma68) machine, and hinted at a bigger project. I intended to be back sooner to describe the code loading process and then move-on to the bigger project. But, I got …

John Linville
Blogs

Micro Chroma 68 Revisited

December 31, 2019 John Linville

About six years ago, on this blog I documented the build of an original Motorola Micro Chroma 68 (aka “uchroma68”) kit. The “kit” was intended as an evaluation platform for the 6847 VDG and consisted of a PCB and the major ICs like the 6808 CPU, 6847 VDG, etc. (I …