the instruction pointer (IP) or program counter (PC) and uses a cache (Cache) to store recently read instructions, reducing the need to access the main memory frequently.Therefore, the correct answer is D, the CPU fetches instructions from the main memory during the instruction fetch stage.
The instruction that the CPU fetches from memory is used to determine what the CPU is to do.In the decode step, the instruction is broken up into parts that have significance to other portions of the CPU. During the execute step, various portions of the CPU are connected so they can ...
The CU fetches the instruction from the memory. The CU decides what the instruction means and directs the relevant data to be moved from memory to the ALU. These first two steps combined are called instruction time or I-time. The ALU executes the arithmetic or logical instruction. The ALU ...
A CPU fetches the instruction from RAM, decodes what the instruction actually is, and then executes the instruction using relevant parts of the CPU. The executed instruction, or calculation, can involve basic arithmetic, comparing numbers, performing a function, or moving numbers around in memory....
and 128 bytes for 8-byte instructions. Whenever the CPU requests data from memory, it fetches the entire line rather than just one piece of data or instruction; this helps reduce latency by ensuring that any related pieces of data will also be in the CPU's cache if they're needed in fu...
In the Fetch-Execute cycle, the processor fetches an instruction from memory, then decodes and executes that instruction before moving on to the next one until all instructions are complete. In the Decode-Execute cycle, the processor first decodes an instruction before executing it; this means ...
First, the CPU fetches an instruction from the computer’s memory and decodes it to understand what needs to be done. Then, the CPU executes the instruction by carrying out the necessary operations. Once the task is completed, the CPU will either store the result in aregisteror in the com...
Control Unit (CU): Manages and directs the flow of data and instructions within the CPU and between the CPU and other computer components. It fetches instructions from memory, decodes them to understand the required actions, and coordinates the execution of these instructions by guiding other ...
Fetch instruction: The processor reads an instruction from memory (register, cache, main memory)(获取指令:处理器从内存(寄存器、缓存、主存)读取指令) Interpret instruction: The instruction is decoded to determine what action is required(解释指令:对指令进行解码以确定所需的操作) ...
The instruction that the CPU fetches from memory determines what the CPU will do. In the decode step, performed bybinary decodercircuitry([ˈsɜrkɪtri]) known as theinstruction decoder, the instruction isconverted into signalsthatcontrol other parts of the CPU. ...