EDN

Building a 4-Bit Computer: The Instruction Set

The registers inside the CPU, the machine code instruction set, and the ways in which the instructions interact with the registers and status flags are all intertwined. As you may recall, one of my ...
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 ...
ExtremeTech

First Mover: Intel's 4-bit 4004 CPU Turns 50

Share on Facebook (opens in a new window) Share on X (opens in a new window) Share on Reddit (opens in a new window) Share on Hacker News (opens in a new window) Share on Flipboard (opens in a new ...
Hackaday

MikroLeo, A 4-Bit Retro Learning Platform

MikroLeo is a discrete TTL logic-based microcomputer intended for educational purposes created by [Edson Junior Acordi], an Electronics Professor at the Brazilian Federal Institute of Paraná, Brazil.
Ars Technica

Hacker boots Linux on Intel’s first-ever CPU

People talking about booting things on Turing machines might enjoy this recent one from Ken Shirriff on the Minuteman III missile's guidance system. It has NO RAM and uses serial processing, reading ...
Liliputing

Bit-Brick Cluster K1 lets you build a 32-core RISC-V computer (by clustering 4 SpacemiT K1 boards)

At least that’s the idea behind the Bit-Brick Cluster K1. Real-world performance will obviously vary depending on the task. But for applications that support parallel processing, this cluster board ...