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diff --git a/openpower/sv/vector_ops/discussion.mdwn b/openpower/sv/vector_ops/discussion.mdwn
index 4055678b2020b6be79e2b52dade016d4e7338568..6ff8b9f790c58dcb732d9ad507aaad5330803dc9 100644 (file)
--- a/openpower/sv/vector_ops/discussion.mdwn
+++ b/openpower/sv/vector_ops/discussion.mdwn
@@ -11,7 +11,7 @@ needs some work though
     a1 <- (RA) & mask
     if mode[1] then a1 <- ¬ra
     mode2 <- mode[2:3]
-    if mode2 = 0 then a2 <- -ra
+    if mode2 = 0 then a2 <- (¬ra)+1
     if mode2 = 1 then a2 <- ra-1
     if mode2 = 2 then a2 <- ra+1
     if mode2 = 3 then a2 <- ¬(ra+1)