Computer Science for IGCSE & O level - Hardware (Section 30 - No. 23)
What is the role of the current instruction register (CIR)?
To store the address of the next instruction.
To store the instruction being currently decoded.
To store the data to be transferred to the memory.
To send signals to external devices.
Shpjegimi
The CIR stores the instructions being decoded or prepared for execution.