EDN

Building a 4-Bit Computer: Instruction Trade-offs

If you are limiting yourself to only 16 instructions, which ones should you chose, and how do you manage without the ones that fall by the wayside? In my previous column on our project to build a ...
Hackaday

4-bit Single Board Computer Based On The Intel 4004 Microprocessor

[Scott Baker] is at it again and this time he has built a 4-bit single board computer based on the Intel 4004 microprocessor. In the board design [Scott] covers the CPU (both the Intel 4004 and 4040 ...
EDN

Building a 4-Bit Computer: Assembly Language and Assembler (Part 1)

We’ve come to the point where we need to define an assembly language for our 4-Bit HRRG Computer, but first we need to consider certain concepts. These days, we are used to programming our computers ...