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diff --git a/openpower/sv/bitmanip.mdwn b/openpower/sv/bitmanip.mdwn
index 6bd55bacf6dbe4ef990909e17172c1eb8fb60977..e165b9bd7e2c20bbf3d709b023cf8ea6bd983248 100644 (file)
--- a/openpower/sv/bitmanip.mdwn
+++ b/openpower/sv/bitmanip.mdwn
@@ -262,12 +262,12 @@ Replaces a pair of explicit instructions in hot-loops.
 
 ```
 uint_xlen_t shadd(uint_xlen_t rs1, uint_xlen_t rs2, uint8_t sh) {
-    return (rs1 << sh) + rs2;
+    return (rs1 << (sh+1)) + rs2;
 }
 
 uint_xlen_t shadduw(uint_xlen_t rs1, uint_xlen_t rs2, uint8_t sh) {
     uint_xlen_t rs1z = rs1 & 0xFFFFFFFF;
-    return (rs1z << sh) + rs2;
+    return (rs1z << (sh+1)) + rs2;
 }
 ```