From 61ba78973fa0ef7edd5ae9f8455d449c2822c5cb Mon Sep 17 00:00:00 2001 From: lkcl Date: Wed, 23 Dec 2020 01:42:04 +0000 Subject: [PATCH] --- openpower/sv/svp_rewrite/svp64.mdwn | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/openpower/sv/svp_rewrite/svp64.mdwn b/openpower/sv/svp_rewrite/svp64.mdwn index 9548f67d8..df71ba5c3 100644 --- a/openpower/sv/svp_rewrite/svp64.mdwn +++ b/openpower/sv/svp_rewrite/svp64.mdwn @@ -495,7 +495,7 @@ independent. XER SO and other global "accumulation" flags (CR.OV) cause Read-Write Hazards on single-bit global resources, having a significant detrimental effect. -Consequently in SV, XER.SO and CR.OV behaviour is disregarded. XER is +Consequently in SV, XER.SO and CR.OV behaviour is disregarded (including in cmp ibstructions) . XER is simply neither read nor written. This includes when `scalar identity behaviour` occurs. If precise OpenPOWER v3.0/1 scalar behaviour is desired then OpenPOWER v3.0/1 instructions should be used without an SV Prefix. An interesting side-effect of this decision is that the OE flag is now free for other uses when SV Prefixing is used. -- 2.30.2