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diff --git a/openpower/sv/ldst.mdwn b/openpower/sv/ldst.mdwn
index e649fb73ea16853f7a207b0fc2cadb7be6a9ac6b..9246e70822a218c4d5f9f3cb38275cfe3a1ccb9d 100644 (file)
--- a/openpower/sv/ldst.mdwn
+++ b/openpower/sv/ldst.mdwn
@@ -301,6 +301,8 @@ legitimately choose to alter srcstep and dststep in non-sequential
 order as part of explicit loops, it is neither possible nor
 safe to make speculative assumptions about future LD/STs.
 Therefore, Fail-First LD/ST in Vertical-First is `UNDEFINED`.
+This is very different from Arithmetic (Data-dependent) FFirst
+where Vertical-First Mode is deterministic, not speculative.
 
 # LOAD/STORE Elwidths <a name="elwidth"></a>