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Your ALU can add its two input registers, and it can logically complement the bits of either input register, but it cannot subtract. Numbers are to...

Your ALU can add its two input registers, and it can logically complement the bits of either input register, but it cannot subtract. Numbers are to be stored in twos complement representation. List the micro-operations your unit must perform to cause a subtraction.

A stack is implemented as shown in the figure below. Show the sequence of micro-operations for:

a. popping;

b. the stack.

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