(no commit message)

diff --git a/openpower/sv/remap.mdwn b/openpower/sv/remap.mdwn
index bed7cdf6fe87a4fad6848b31052e924d25c4da47..fe2055661d5a68f27f89b214c423890cba8c2ebb 100644 (file)
--- a/openpower/sv/remap.mdwn
+++ b/openpower/sv/remap.mdwn
@@ -338,7 +338,8 @@ Vector Reduce Mode issues a deterministic tree-reduction schedule to the underly
 
 In Horizontal-First Mode, Vector-result reduction **requires**
 the destination to be a Vector, which will be used to store
-intermediary results.
+intermediary results, in order to achieve a correct final
+result.
 
 Given that the tree-reduction schedule is deterministic,
 Interrupts and exceptions
@@ -409,7 +410,9 @@ It may be better to perform a pre-copy
 of the values, compressing them (VREDUCE-style) into a contiguous block,
 which will guarantee that the result goes into the very first element
 of the destination vector, in which case clearly no follow-up
-predicated vector-to-scalar MV operation is needed.
+predicated vector-to-scalar MV operation is needed. A VREDUCE effect
+is achieved by setting just a source predicate mask on Twin-Predicated
+operations.
 
 **Usage conditions**