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1. |
A CPU has 12 registers and uses 6 addressing modes. RAM is 64K × 32. What is the maximum size of the op-code field if the instruction has a register operand and a memory address operand? |
A. | 8 bits |
B. | 9 bits |
C. | 10 bits |
D. | 11 bits |
Answer» C. 10 bits | |