fill out notes and observations

I can't read the commitdiff of d827d9e11ce635d52652f8936a454319fa2ebea9,
so I'm reverting and reapplying it as a set of split-up commits.

diff --git a/openpower/sv/rfc/ls006.mdwn b/openpower/sv/rfc/ls006.mdwn
index d46ce05f32fc41ea418aeedf620bf50a1ffe20af..1d7b3bb49c95031e50bea3dec40a1857ee753643 100644 (file)
--- a/openpower/sv/rfc/ls006.mdwn
+++ b/openpower/sv/rfc/ls006.mdwn
@@ -70,7 +70,9 @@ implements each variant.
 
 **Notes and Observations**:
 
-* TODO
+* These instructions are present in many other ISAs.
+* Javascript rounding as one instruction saves 35 instructions including
+  six branches.
 
 **Changes**