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| author | Andrew Waterman <andrew@sifive.com> | 2019-03-07 22:18:45 -0800 |
|---|---|---|
| committer | Andrew Waterman <andrew@sifive.com> | 2019-03-07 22:18:45 -0800 |
| commit | 8dc9b9cc34bdd200422043014df648a268f11662 (patch) | |
| tree | 5acebf177e0e5cc31a0fa3bf78fb3cc9f4399232 /src/supervisor.tex | |
| parent | 6542a199007260e921932e1e04d61176788ec83a (diff) | |
| download | riscv-isa-manual-8dc9b9cc34bdd200422043014df648a268f11662.zip riscv-isa-manual-8dc9b9cc34bdd200422043014df648a268f11662.tar.gz riscv-isa-manual-8dc9b9cc34bdd200422043014df648a268f11662.tar.bz2 | |
Update mcause/scause tables to allocate some custom exception causes
Diffstat (limited to 'src/supervisor.tex')
| -rw-r--r-- | src/supervisor.tex | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/src/supervisor.tex b/src/supervisor.tex index 5bbcfe5..ab406b1 100644 --- a/src/supervisor.tex +++ b/src/supervisor.tex @@ -626,13 +626,14 @@ so is only guaranteed to hold supported exception codes. \hline 1 & 0 & User software interrupt \\ 1 & 1 & Supervisor software interrupt \\ - 1 & 2--3 & {\em Reserved} \\ + 1 & 2--3 & {\em Reserved for future standard use} \\ \hline 1 & 4 & User timer interrupt \\ 1 & 5 & Supervisor timer interrupt \\ - 1 & 6--7 & {\em Reserved} \\ + 1 & 6--7 & {\em Reserved for future standard use} \\ \hline 1 & 8 & User external interrupt \\ 1 & 9 & Supervisor external interrupt \\ - 1 & $\ge$10 & {\em Reserved} \\ \hline + 1 & 10--15 & {\em Reserved for future standard use} \\ + 1 & $\ge$16 & {\em Reserved for platform use} \\ \hline 0 & 0 & Instruction address misaligned \\ 0 & 1 & Instruction access fault \\ 0 & 2 & Illegal instruction \\ @@ -643,12 +644,16 @@ so is only guaranteed to hold supported exception codes. 0 & 7 & Store/AMO access fault \\ 0 & 8 & Environment call from U-mode \\ 0 & 9 & Environment call from S-mode \\ - 0 & 10--11 & {\em Reserved} \\ + 0 & 10--11 & {\em Reserved for future standard use} \\ 0 & 12 & Instruction page fault \\ 0 & 13 & Load page fault \\ - 0 & 14 & {\em Reserved} \\ + 0 & 14 & {\em Reserved for future standard use} \\ 0 & 15 & Store/AMO page fault \\ - 0 & $\ge$16 & {\em Reserved} \\ + 0 & 16--23 & {\em Reserved for future standard use} \\ + 0 & 24--31 & {\em Reserved for custom use} \\ + 0 & 32--47 & {\em Reserved for future standard use} \\ + 0 & 48--63 & {\em Reserved for custom use} \\ + 0 & $\ge$64 & {\em Reserved for future standard use} \\ \hline \end{tabular} \end{center} |