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Cortex-A series processors contain event counting hardware which can be used to profile and benchmark code. The counters for these are programmed using:
An ARMv7 implementation might include the VFPv4-D32 floating point extension. What does the '32' indicate?
Consider a sequence of five independent instructions running on a pipelined processor. There are no interlocks and no data dependencies between instructions, and each instruction takes one cycle to execute. The processor has three pipeline stages and is not superscalar.
How many cycles does it take to fetch, decode and execute all five instructions in sequence, assuming that there are no pipeline stalls?