(no commit message)

diff --git a/openpower/sv/svp64/appendix.mdwn b/openpower/sv/svp64/appendix.mdwn
index 59c430468a89cfb03ba864687bdfe67a3b5f3e29..be12ba2c52072f516c131240f05436046922df50 100644 (file)
--- a/openpower/sv/svp64/appendix.mdwn
+++ b/openpower/sv/svp64/appendix.mdwn
@@ -147,7 +147,8 @@ Predication was suitable.  As a general rule this was if there
 was only a single operand and a single result (`extw` and LD/ST)
 however it was found that some 2 or 3 operand instructions also
 qualify. Given that 3 of the 9 bits of EXTRA had to be sacrificed for use
-in Twin Predication, some compromises were made, here.
+in Twin Predication, some compromises were made, here.  LDST is
+Twin but also has 3 operands in some operations, so only EXTRA2 can be used.
 
 Fourthly, a packing format was decided: for 2R-1W an EXTRA3 indexing
 could have been decided