Arithmetic Logic Unit Circuit Diagram. In the above circuit a two input ex or gate two input and gate produces sum s carry c respectively. An arithmetic logic unit alu is a digital circuit used to perform arithmetic and logic operations.
Download the digital logic circuit simulator logisim. Memory for variables registers control circuitry microcode and the alu. It is a fundamental building block of many types of computing circuits including the central processing unit cpu of computers fpus and.
One stage of an arithmetic logic shift unit is shown in fig.
The alu arithmetic logic unit is the part of a cpu that actually does calculations and condition testing. It represents the fundamental building block of the central processing unit cpu of a computer. Since it is a basic building block for digital systems we all must have built one in our engineering or high school. L low voltage level.
