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4 . 5 In this exercise, we examine in detail how an instruction is executed in a single - cycle datapath. Problems in this exercise
In this exercise, we examine in detail how an instruction is executed in a
singlecycle datapath. Problems in this exercise refer to a clock cycle in which the
processor fetches the following instruction word: xcba
$ What are the values of the ALU control unit's inputs for this
instruction?
$ What is the new PC address after this instruction is executed?
Highlight the path through which this value is determined.
$ For each mux, show the values of its inputs and outputs during
the execution of this instruction. List values that are register outputs at Reg
$ What are the input values for the ALU and the two add units?
$ What are the values of all inputs for the registers unit?
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