Logic Diagram Of Alu. The particular function to be performed is specified by a 6 bit control input fn whose value. 2 bit alu logic gate diagram the vector stencils library initiation and annunciation contains 9 symbols of fire alarm control panel facp or fire alarm control unit facu elements triggering devices audible alarm systems timers security control equipment and recording devices.
Their purpose is to perform the basic though still complex binary arithmetic described in. It is the fundamental building block of the central processing unit of a computer. Alus comprise the combinational logic that implements logic operations such as and or and arithmetic operations such as add subtract.
Two 8 bit input buses a and b and 1 bit cin get passed straight to the 8 bit logic gates or to an 8 bit inverter andor 8 bit clear and then to the 8 bit adder to be added together.
An arithmetic logic unit alu is a digital circuit used to perform arithmetic and logic operations. 2functional representation of arithmetic logic unit 2. Inside a computer there is an arithmetic logic unit alu which is capable of performing logical operations eg. Functionally the operation of typical alu is represented as shown in diagram below fig2 functional representation of arithmetic logic unit 2.