Consider the following register transfer statements for two 4-bit registers Rand R2. XT: R1 R1 + R2 XT:R1 - R2 Every time that variable T = 1, either the content of R2 is added to the content of lif x = 1, or the content of R2 is transferred to R1ifx=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-tot-line multiplexer that selects the inputs to R1. In the diagram, show how the control variables and select the inputs of the multiplexer and the load input of register R1