Questions tagged [instruction-set]

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How can an instruction be fetched every cycle?

From what I understand, in a pipelined CPU, every stage takes 1 cycle. But instructions are fetched from memory which takes up to ~150 cycles. The CPU fetches most instructions from the L1-cache, but ...
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What kind of binary compatibility is present for 2 processors sharing an Instruction Set?

Consider Intel x86 and AMD x86 Processors. As I understand, since they use the same Instruction Set, in theory an application compiled for Intel x86 processor would run without any modification on ...