instruction cycle

(redirected from Fetch execute cycle)
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instruction cycle

[in′strək·shən ‚sī·kəl]
(computer science)
The steps involved in carrying out an instruction.

instruction cycle

The fundamental sequence of steps that a CPU performs. Also known as the "fetch-execute cycle," it is the process whereby a single instruction is executed. The first half of the cycle transfers the instruction from RAM to the instruction register (fetch) and decodes it. The second half executes the instruction. See machine language.
References in periodicals archive ?
Selecting Run Machine Instruction causes the simulator to perform the Fetch Execute cycle for the next instruction only.
Selecting Run Without Pause causes the program execute Fetch Execute cycles for each instruction in sequence, pausing only for user input, until the Halt instruction is executed.