From d643960f83ba91215f0d007daddb4a15eed03b8b Mon Sep 17 00:00:00 2001 From: Luke Kenneth Casson Leighton Date: Wed, 7 Feb 2024 20:16:08 +0000 Subject: [PATCH] note update date on RFC ls004 (v2) --- openpower/sv/rfc/ls004.mdwn | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/openpower/sv/rfc/ls004.mdwn b/openpower/sv/rfc/ls004.mdwn index cdb114e46..4fcf6577c 100644 --- a/openpower/sv/rfc/ls004.mdwn +++ b/openpower/sv/rfc/ls004.mdwn @@ -1,4 +1,4 @@ -# RFC ls004 Shift-And-Add +# RFC ls004 v2 Shift-And-Add and LD/ST-Shifted * Funded by NLnet under the Privacy and Enhanced Trust Programme, EU Horizon2020 Grant 825310, and NGI0 Entrust No 101069594 @@ -16,7 +16,7 @@ **Status**: New -**Date**: 31 Oct 2022 +**Date**: 07 Feb 2024 **Target**: v3.2B @@ -39,7 +39,7 @@ sadd - Shift and Add saddw - Shift and Add Signed Word sadduw - Shift and Add Unsigned Word - Also under consideration LD/ST-Indexed-Shifted + Also LD/ST-Indexed-Shifted (Fixed and Floating) ``` **Submitter**: Luke Leighton (Libre-SOC) @@ -70,6 +70,7 @@ Power ISA is missing LD/ST Indexed with shift, which is present in both ARM and x86. Adding more LD/ST is thirty eight instructions, a compromise is to add shift-and-add. Replaces a pair of explicit instructions in hot-loops. +Adding actual LD/ST Shifted saves even further. **Notes and Observations**: -- 2.30.2