From d1fb321fe8af4e1c07ee95a303210fbdbad2e639 Mon Sep 17 00:00:00 2001 From: lkcl Date: Tue, 19 Apr 2022 13:53:29 +0100 Subject: [PATCH] --- openpower/sv/biginteger.mdwn | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/openpower/sv/biginteger.mdwn b/openpower/sv/biginteger.mdwn index 9017b8cd1..d88c2b132 100644 --- a/openpower/sv/biginteger.mdwn +++ b/openpower/sv/biginteger.mdwn @@ -11,3 +11,12 @@ A reminder that a particular focus of SVP64 is that it is built on top of Scalar operations, where those scalar operations are useful in their own right without SVP64. Thus the operstions here are proposed first as Scalar Extensions to the Power ISA. + +A secondary focus is that if Vectorised, implementors may choose +to deploy macro-op fusion targetting back-end 256-bit or greater +Dynamic SIMD ALUs for maximum performance and effectiveness. + +# Add and Subtract + +Surprisingly, no new additional instructions are required to perform +a straightforward big-integer add or subtract. Vectorised `addex` -- 2.30.2