Learn how to use logic gates and circuit diagrams to create a simple calculator that can perform addition and subtraction with four-bit numbers. Sign in to view more content ...

JIC -- jump to another instruction if the carry bit is set, that is, if register A overflowed while computing a previous instruction (this allows for "bounded loops" so that the cpu can run a loop for ...

The aim was to develop a practical 8-bit CPU using a minimum of TTL packages - with emphasis on using only those parts that are commonly available. This repository begins with a transcription of his ...