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Can anyone explain organization of ALU.

Why multiplexer and immediate value is used in ALU implementation ?

Why we are not directly load data from register into ALU to perform operation?
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Why we are not directly load data from register into ALU to perform operation?

if am not wrong this is what immediate value does

u directly load data from register to ALU along with an immediate value with which the required operation is performed

inorder to select the required registers we require a mux

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