ITPEC FE Morning October 2021 Question 11
ITPEC FE Morning October 2021 — Question 11 of 80
CPU Special Registers — identify the register that holds the address of the next instruction.
The Program Counter (PC) stores the memory address of the next instruction to be fetched.
Why not others:
- (a) Accumulator — holds intermediate arithmetic/logic results
- (b) Instruction Register — holds the current instruction being decoded/executed
- (d) Status Register — holds condition flags (zero, carry, overflow, sign)
Key rule: "next instruction address" = Program Counter. "Current instruction content" = Instruction Register.
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