Lesson 1 - First proper lesson Flashcards
1
Q
What is Setting in CS?
A
Writing to RAM
2
Q
What is Enabling in CS?
A
Taking from RAM
3
Q
- What is the first stage of the fde cycle?
A
-Program counter is copied to the MAR
4
Q
- What is the second stage of the fde cycle?
A
- Program counter is incremented
5
Q
- What is the third step in the fdr cycle?
A
- Address in memory address register accessed in RAM via the adress bus.
6
Q
- What is the fourth step in the fde cycle
A
-Data at that address in RAM is copied to the Memory Data Register via the data bus
7
Q
- What is the fifth step in the fde cycle
A
-Memory Data Register is copied to the Current Instruction Register
8
Q
- What is the sixth step in the fde cycle
A
-Contents of Current Instruction Register are decoded by the decode unit
9
Q
- What is the seventh step in the fde cycle
A
-Instruction is split into opcode and operand
10
Q
- What is the last step in the fde cycle
A
-Decoded instruction is executed
11
Q
How many stages of the fde cycle are there?
A
-8
12
Q
What is Branching?
A
- You basically skip the instruction and go to another one
