Why do certain data path elements need to be duplicated in the single cycle implementation (like...
Why do certain data path elements need to be duplicated in the single cycle implementation (like ALU + 2 additional adders)?
Homework Answers
To allow the execution of multiple instructions at the same time, it becomes necessary to use a different functional unit.
One cycle is divided into two parts first half is allocated to write the data and the second half is allocated to read the data. In the single-cycle data path, all the instructions are to be executed in one cycle. During the implementation phase, because instructions can be rerouted again. It becomes necessary to duplicate the hardware elements. As a result, it takes about 5 times slower as compared to the multicycle datapath design.
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