Answer to Question #303322 in Electrical Engineering for areen

Question

Consider the following register transfer statements for two 4-bit registers R1 and R2.

PT: R1← R1^ R2

Every time that variable T = 1, either the content of R2 is added to the content of Rl if

x = 1, or the content of R2 is transferred to R1 if x = 0. Draw a diagram showing the

hardware implementation of the two statements. Use block diagrams for the two 4-bit

registers, a 4-bit adder, and a quadruple 2-to-1-llne multiplexer that selects the inputs

to R l . In the diagram, show how the control variables x and T select the inputs of the

multiplexer and the load input of register R1.