Quiz
The Fetch Execute Cycle
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1The Fetch-Execute Cycle
The [blank_start]PC[blank_end] register holds the address of the next [blank_start]instruction[blank_end]. This value is passed to the [blank_start]MAR[blank_end]. The instruction in memory at this address is then retrieved and placed in the [blank_start]MBR[blank_end]. At the same time the PC increments by 1. The instruction is then passed to the [blank_start]CIR[blank_end] where it is [blank_start]decoded[blank_end] and [blank_start]executed[blank_end]. Any results of calculations are placed in general purpose registers. Results of comparisons, interrupts and notification of overflow are placed in the [blank_start]status[blank_end] register. The process repeats.- APC
- BProgram Counter
- Cinstruction
- DMemory Address Register
- EMemory Buffer Register
- FCurrent Instruction Register
- Gdecoded
- Hexecuted
- Istatus
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- Description
- A-Level Computer Science Quiz on The Fetch Execute Cycle, created by Stuart Lucas on 16/05/2016.
- Author
- Stuart Lucas
- Language
- English
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- History
- Created on 16 May 2016 · updated on 15 Aug 2016
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