8-bit CPU build
This material is based on the high quality build your own CPU guide by Ben Eater. Ben cites the SAP-1 CPU architecture as the design inspiration for the CPU, which originated from the book Digital Computer Electonics by Albert Paul Malvino. The SAP (Simple As Possible) computer has been designed for you, the beginner. Its purpose, to introduce the crucial ideas behind a CPUs operation without burying you in unnecessary detail. Architecture General Electonics Dirty power Resistors Capacitors Latch vs flip flop D flip flop The clock The registers Arithmetic and Logic Unit (ALU) Design Implementation Representing negative numbers - signing bit, 1’s and 2’s complement Ones complement Two complement Program Counter (PC) PC module problem 1: counter clearing PC module problem 2: dirty clock signal Output register Arduino Nano EEPROM programmer Binary to decimal 7-segment decoder Multiplexing four 7-segment displays with a single EEPROM Handy resources Architecture The SAP-1 defines a number of logical CPU modules which are capable of integrating to form a working CPU and ultimately computer. ...