The register SP in a microprocessor:

The register SP in a microprocessor:

  1. a) points to the first instruction
  2. b) points to the top of the stack
  3. c) holds the base address of the memory
  4. d) holds the I/O port address

From the BCS Technical Cadre (CSE) October 2025 – 49th BCS Written (Special) (BPSC) exam, question 85 of 123.

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