Interrupt classes: _NTO_TRACE_INTENTER, _NTO_TRACE_INTEXIT, _NTO_TRACE_INT_HANDLER_ENTER, and _NTO_TRACE_INT_HANDLER_EXIT

These classes track interrupts.

Class traceprinter label IDE label Emitted when:
_NTO_TRACE_INTENTER INT_ENTR Entry Overall processing of an interrupt begins
_NTO_TRACE_INTEXIT INT_EXIT Exit Overall processing of an interrupt ends
_NTO_TRACE_INT_HANDLER_ENTER INT_HANDLER_ENTR Handler Entry Entering an interrupt handler
_NTO_TRACE_INT_HANDLER_EXIT INT_HANDLER_EXIT Handler Exit Exiting an interrupt handler

The expected sequence is:

INTR_ENTER
    INTR_HANDLER_ENTER
    INTR_HANDLER_EXIT
    INTR_HANDLER_ENTER
    INTR_HANDLER_EXIT
INT_EXIT

_NTO_TRACE_INT is a pseudo-class that comprises all of the interrupt classes.

The “event” is an interrupt vector number, in the range from _NTO_TRACE_INTFIRST through _NTO_TRACE_INTLAST.