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  • in arm7tdmi, when FIQ and RIQ occures at same time so how both are executed sequentially,first FIQ and thenIRQ?

    in arm7tdmi, suppose instruction is being executed and at same time FIQ and IRQ both occur  at same time.now according to priority FIQ will be handled then IRQ  but my question is that how it will handled IRQ after  return from FIQ

    i means…

  • In ARM7 and ARM9 PC=current + 8, but in the cortex-A7(8-stage pipeline) the PC is also the same value(PC=current +8), how does this work?

    In ARM7 and ARM9 PC=current + 8, but in the cortex-A7(8-stage pipeline) the PC is also the same value(PC=current +8), how does this work?

    I think the cortex-A7 has 8-stage pipeline, the PC value is also current+8(this is back-forward for old design), but…