The processor checks the program counter to see which instruction to run next, The Program Counter gives an address value in the memory of where the next instruction is, The processor fetches the instruction value from this memory location, Once the instruction has been fetched, it needs to be decoded and executed. For example, this could involve taking one value, putting it into the ALU, then taking a different value from a register and adding the two together, Once this is complete, the processor goes back to the Program Counter to find the next instruction, This cycle is repeated until the program ends.

Summary of the fetch-execute cycle

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