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Fix general interrupt overview table ie description #394

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Fix general interrupt overview table ie description #394

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fbfb1ef
Fix general interrupt overview table ie description
dansmathers Apr 9, 2024
878398b
add additional line to generic interrupt behavior table to remove und…
dansmathers Apr 10, 2024
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9 changes: 5 additions & 4 deletions clic.adoc
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Original file line number Diff line number Diff line change
Expand Up @@ -1258,11 +1258,11 @@ privilege mode.

The overall behavior is summarized in the following table: the Current
`p/ie/il` fields represent the current privilege mode `P` (not
software visible), interrupt enable `ie` =
({status}.{ie} & `clicintie[__i__]`) and interrupt
software visible), new privilege mode global interrupt enable `ie` and interrupt
level `L` = max({intstatus}.{il}, {intthresh}.`th`);
the CLIC `priv`,`level`, and `id` fields
represent the highest-ranked interrupt currently present in the CLIC
represent the highest-ranked pending and enabled interrupt
(`clicintip[__i__]` & `clicintie[__i__]` == 1) currently present in the CLIC
with `nP` representing the new privilege mode, `nL` representing the
new interrupt level, and `id` representing the interrupt's id;
Current' shows the `p/ie/il` context in the handler's privilege mode;
Expand All @@ -1281,7 +1281,8 @@ context fields in {cause} and {epc}.
P 1 L | nP=P 0<nL<=L ? |-> - - - - - - - - - # Interrupt ignored
P 1 L | nP=P L<nL id |-> P 0 nL V id P L 1 pc # Horizontal interrupt taken
P ? ? | nP>P 0 ? |-> - - - - - - - - - # No interrupt
P e L | nP>P 0<nL id |-> nP 0 nL V id P L e pc # Vertical interrupt taken
P 0 L | nP>P 0<nL id |-> nP 0 nL V id P L 0 pc # Vertical interrupt taken
P 1 L | nP>P 0<nL id |-> nP 0 nL V id P L 1 pc # Vertical interrupt taken
----

==== Critical Sections in Interrupt Handlers
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