Describe the fetch decode execute cycle in programming.
Answers
The fetch cycle in a microprocessor comprises of several time states during which the next instruction to be executed is copied ( fetched) from the memory location (whose address is in the Program Counter ) to the Instruction Register.
The fetch execute cycle is the basic operation (instruction) cycle of a computer (also known as the fetch decode execute cycle). During the fetch execute cycle, the computer retrieves a program instruction from its memory. It then establishes and carries out the actions that are required for that instruction.
Fetch-decode-execute cycle. The main job of the CPU is to execute programs using the fetch-decode-execute cycle (also known as the instruction cycle). This cycle begins as soon as you turn on a computer. To execute a program, the program code is copied from secondary storage into the main memory.