Fix MODE field description of mtvec register #1165
Merged
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Fix MODE field description in the mtvec register
In Section 1.6, "Exceptions, Traps, and Interrupts" of the unprivileged specification, a distinction is made between exceptions and interrupts.
Table 13 in the privileged specification uses the term "exceptions" as a catch-all expression, encompassing both "exceptions and interrupts" which may not be immediately apparent.
Reading "exceptions" merely as "exceptions" while seeing following word "interrupts" can led to believe that the 0th bit is used to control exception handling behavior, while the 1st bit is used to control interrupt handling behavior.