A stack is organized such that SP always points at the next empty location on the stack.

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A stack is organized such that SP always points at the next empty location on the stack. This means that SP can be initialized to 4000 in Fig. 8-4 and the first item in the stack is stored in location 4000. List the microoperations for the push and pop operations.

Fig. 8-4

PC AR SP Memory unit Program (instructions) Data (operands) Stack DR Address 1000 2000 3000 3997 3998 3999

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