What is the function of stack pointer register?
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Stack is a buffer which is used to store data from top to down in memory. Stack pointer is a small register that is used to store the adress of last program accessed by stack. Data pointer is the user accessible 2 bytes register. ... Program counter is used to store the address of current program that is goint to execute.
A stack pointer is a small register that stores the address of the last program request in a stack. A stack is a specialized buffer which stores data from the top down. As new requests come in, they "push down" the older ones.
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