The microinstructions stored in the control memory of a processor have a width of 26 bits... micro op 13 bits... X field... Y field... 8 status bits... size of control memory?
- A. 10, 3, 1024
- B. 8, 5, 256
- C. 5, 8, 2048
- D. 10, 3, 512
Answer: A. 10, 3, 1024
Explanation: Total 26 bits. Op 13. Status bits 8 -> MUX select Y needs 3 bits. Next addr X = 26-13-3=10 bits. Address space 2^10 = 1024 words.