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CHAPTER 4 RESET AND "EIT" PROCESSING
■ Priority of Multiple Processes
When the acceptance of an "EIT" source results in the masking of other sources, the priority of execution of
simultaneously occurring "EIT" handlers is as shown in Table 4.6-2.
*: When "INTE" instructions are run stepwise, only the step trace "EIT" is generated.
Sources related to the "INTE" instruction will be ignored.
Table 4.6-2 Priority of Execution of "EIT" Handlers
Priority Source Masking of other sources
1 Reset Other sources discarded
2 Undefined instruction exception Other sources disabled
3 Step trace trap ILM = 4 *
4 INTE instruction ILM = 4 *
5 NMI ILM = 15
6 INT instruction I flag = 0
7 User interrupt ILM = level of source accepted
8
Coprocessor not found trap
Coprocessor error trap
None