Answer to Question #303129 in Electrical Engineering for Areen

Question

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

xT: R1← R1^ R2

x' T: 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.

Answer 1

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