which unit obtain the instruction from main memory please tell the correct answer
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Answer:
The instruction unit (IU), also called instruction fetch unit (IFU) or instruction issue unit (ISU), in a central processing unit (CPU) is responsible for organising program instructions to be fetched from memory, and executed, in an appropriate order.Instructions are stored in memory and the contents of the PC register are used as the starting address from where the next to be executed instruction is read. Because the length of an 68k instruction is bytes can vary decoding and reading the instruction from memory (steps 1 and 2) is an iterative process.
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Answer:
HI MATE !
The instruction unit (IU), also called instruction fetch unit (IFU) or instruction issue unit (ISU), in a central processing unit (CPU) is responsible for organising program instructions to be fetched from memory, and executed, in an appropriate order.