1.1.1 - Fetch Decode Execute Cycle Flashcards
1
Q
What happens to the content of the Program Counter in the FDE cycle?
A
Content is copied to the Memory Address Memory.
2
Q
What happens to the content of the MAR in the FDE cycle?
A
Content is copied to the MDR.
3
Q
What happens to the content of the MDR during the FDE cycle?
A
Content of the MDR is copied to the CIR.
4
Q
What happens to the PC when everything has been copied?
A
Increments by 1.
5
Q
What happens during the decode phase?
A
The content of the Current Instruction Register is decoded.
6
Q
What happens during the execute stage?
A
Content of the CIR is executed.
