24.22.4.2.25. TimingSimpleCPU analysis #25
Executes TimingSimpleCPU::IcachePort::ITickEvent::process().
This custom process then calls TimingSimpleCPU::completeIfetch(PacketPtr pkt), and that finally executes the very first instruction:
77000: ExecEnable: system.cpu: A0 T0 : @asm_main_after_prologue : movz x0, #1, #0 : IntAlu : D=0x0000000000000001 flags=(IsInteger)
The end of this instruction must be setting things up in a way that can continue the PC walk loop, and by looking at the source and traces, it is clearly from: TimingSimpleCPU::advanceInst which calls TimingSimpleCPU::fetch.
And TimingSimpleCPU::fetch is the very thing we did in this simulation at TimingSimpleCPU analysis #0!!! OMG, that’s the loop.