Jim Huang

Thank @anthony-linaro for contributing!

I would like to ask @ranvd for reviewing and collaborating.

> Replace the `timer` defined in the `emu_state_t` structure, which originally compared with the instruction counter and triggered software timer interrupts, with the MTIMER memory-mapped peripheral. For each HART (currently...

> Clarify that the MTIMER peripheral can also trigger timer interrupts within a scheduled period by monitoring `/proc/interrupts` reveals an increase in timer interrupts triggered by `riscv-timer`: > > ```...

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I defer @ranvd for confirmation.

Related pull request: #46

> Does it make sense to prioritize adding M-mode privilege levels support for semu first? Yes, M-mode is the highest privilege mode and controls all physical resources and interrupts. Could...

superseded by #657

> You can definitely try that and check tests now work on all optimization levels with gcc and clang. > > Another solution is to disable optimization explicitly for functions...