8 bit computer, instructions and microcode

When designing and building your own computer, you have to design and build your own instruction set as well. So that’s one of the things I’m doing right now. One of the functions of the Control Unit in the computer is to decode the instructions and have all the chips jumping through hoops to performs their tasks in the right order etc.

See these links for a first glance of the instruction set and the micro code design, and Control_Signals.