8 Questions
Once this is done, each instruction needs to be ______ before being executed
decoded
The PC is then ______ (increased by 1) so that the next instruction can be processed
incremented
To execute a set of instructions, the processor first fetches data and instructions from memory and stores them in suitable ______
registers
What are the functions of the address bus and data bus in the processor's execution of instructions?
The address bus is used to fetch data and instructions from memory, and the data bus is used to store them in suitable registers.
How does the processor fetch the next instruction from memory and prepare it for execution?
The next instruction is fetched from the memory address stored in the program counter (PC) and is then stored in the current instruction register (CIR), after which the PC is incremented by 1.
What is the significance of decoding each instruction before execution?
Decoding each instruction allows for interpretation in the next part of the cycle, ensuring that each instruction is carried out in its logical sequence.
Describe the process of executing instructions in the processor.
The processor passes the decoded instruction as a set of control signals to the appropriate components within the computer system, allowing each instruction to be carried out in its logical sequence.
Explain the initial steps involved in the processor's execution of a set of instructions.
The processor first fetches data and instructions from memory, stores them in suitable registers, and then decodes each instruction before execution.
Test your understanding of computer processor operation with this quiz on instruction fetching, decoding, and execution. Explore the role of the address bus, data bus, and program counter in the process.
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