(no commit message)

diff --git a/openpower/sv/remap.mdwn b/openpower/sv/remap.mdwn
index 3cd27a037001978198c4b8729d0f24dd5d6e4655..909f1fb12a1221e136731f8e3947fc2fffa4401c 100644 (file)
--- a/openpower/sv/remap.mdwn
+++ b/openpower/sv/remap.mdwn
@@ -682,6 +682,14 @@ to increase the GPR/FPR register number by one, because EXTRA2-encoding
 of GPR/FPR Vector numbers are restricted to even numbering. The
 additional offset range (8-15) helps overcome this limitation.*
 
+*Hardware Implementor's note: with the offsets only being immediates
+and with register numbering being entirely immediate as well it is
+possible to correctly compute Register Hazards without requiring
+reading the contents of any SPRs.  If however there are
+instructions that have directly written to the SVSTATE or SVSHAPE
+SPRs and those instructions are still in-flight then this position
+is clearly **invalid**.*
+
 # TODO
 
 * investigate https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6879380/#!po=19.6429