From 5580a75a68ab3499be0239cf94323f2207ceadd5 Mon Sep 17 00:00:00 2001 From: lkcl Date: Sun, 19 Jun 2022 00:53:54 +0100 Subject: [PATCH] --- openpower/sv/svp64_quirks.mdwn | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/openpower/sv/svp64_quirks.mdwn b/openpower/sv/svp64_quirks.mdwn index b24fc6d7c..3d4033ac7 100644 --- a/openpower/sv/svp64_quirks.mdwn +++ b/openpower/sv/svp64_quirks.mdwn @@ -463,6 +463,12 @@ of user expectations, particularly for LD/ST where exceptions would normally be expected to be raised, Fail-First provides for avoidance of those exceptions. +For Hardware implementers, a standard Out-of-Order micro-architecture +allows for Cancellation of speculatively-executed elements that extended +beyond the Vector Truncation point. In-order systems will have a slightly +harder time and may choose to execute one element only at a time, reducing +performance as a result. + # OE=1 The hardware cost of Sticky Overflow in a parallel environment is immense. -- 2.30.2