From 2c49247b1fc2c64d25adfc16e04c3afc1e1cff8e Mon Sep 17 00:00:00 2001 From: lkcl Date: Thu, 5 May 2022 05:43:17 +0100 Subject: [PATCH] --- openpower/sv/remap.mdwn | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/openpower/sv/remap.mdwn b/openpower/sv/remap.mdwn index aca580084..a9a7e3bac 100644 --- a/openpower/sv/remap.mdwn +++ b/openpower/sv/remap.mdwn @@ -30,8 +30,11 @@ Note that REMAP does not apply to sub-vector elements: that is what swizzle is for. Swizzle *can* however be applied to the same instruction as REMAP. -REMAP is quite expensive to set up, and on some implementations introduce -latency, so should realistically be used only where it is worthwhile +In its general form, REMAP is quite expensive to set up, and on some +implementations introduce +latency, so should realistically be used only where it is worthwhile. +Commonly-used patterns such as Matrix Multiply, DCT and FFT have +helper instruction options which make REMAP easier to use. # Principle -- 2.30.2