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| author | Andrew Waterman <andrew@sifive.com> | 2020-12-15 17:44:22 -0800 |
|---|---|---|
| committer | Andrew Waterman <andrew@sifive.com> | 2020-12-15 17:44:22 -0800 |
| commit | 34865b82b3b4d3cec595f94e698791162b024a94 (patch) | |
| tree | 734ac566f09616cfa52c3dfec54afee1b50f3836 | |
| parent | d2becbcc6ef6daaccaa8d5ef396a45a8a1cdb822 (diff) | |
| download | riscv-isa-manual-34865b82b3b4d3cec595f94e698791162b024a94.zip riscv-isa-manual-34865b82b3b4d3cec595f94e698791162b024a94.tar.gz riscv-isa-manual-34865b82b3b4d3cec595f94e698791162b024a94.tar.bz2 | |
Explicitly state rd=0/rs1=0 constraint on PAUSE
| -rw-r--r-- | src/zihintpause.tex | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/zihintpause.tex b/src/zihintpause.tex index 456e2c5..a8a6326 100644 --- a/src/zihintpause.tex +++ b/src/zihintpause.tex @@ -32,7 +32,7 @@ than optimal on some implementations, degrading system performance. \end{commentary} PAUSE is encoded as a FENCE instruction with {\em pred}=W, {\em succ}=0, -and {\em fm}=0. +{\em fm}=0, {\em rd}={\tt x0}, and {\em rs1}={\tt x0}. \begin{commentary} PAUSE is encoded as a hint within the FENCE opcode because some |