Testing ALU

A project log for JACA 1 & 2 Homebrew Computer

JACA - Just Another CPU Again Homebrew CPU, starting by a simple POC 4-bit CPU on circuit simulator soft. (done), then 8-bit (in progress)

Andre BaptistaAndre Baptista 02/26/2019 at 00:400 Comments

Some days ago I made a video of the ALU testing. I had some surprises with this module: the power wires were too thin, which, together with the cheap eBay ICs was causing a voltage drop; I made some mistakes when designing the PCB which I had to correct with very ugly wires.

PS. Today one more board arrived, soon we will have a new module working.

Thanks for reading.