An Arithmetic and Logic Unit (ALU) is a digital circuit that performs arithmetic and logic operations. In this work, the demand is to design an 8-bit ALU and perform analysis at gate and layout ...

In this paper VHDL implementation of 8-bit Arithmetic Logic Unit (ALU) is presented. The design was implemented using VHDL Xilinx Synthesis tool ISE 13.1 and targeted for Spartan device.

Hovey's 8-bit ALU (arithmetic logic unit) is constructed completely out of transistor-transistor logic (TTL), as are the registers. The microinstructions (the op code, the ISA) that actually ...