Consider the usage of the stack abstraction in executing procedure calls. Do all actions on the stack happen only via pushes and pops on to and from the top of the stack? Explain circumstances that warrant reaching into other parts of the stack during program execution. How is this accomplished?
What will be an ideal response?
No, the amount of memory included in the stack at any given time is controlled by simply changing the stack pointer value. Then values may be read or written in locations defined as offsets from the address stored in the stack pointer (or frame pointer).
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