Articles by 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 …

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 …

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 …

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 …