From: lkcl Date: Thu, 27 Apr 2023 18:57:50 +0000 (+0100) Subject: (no commit message) X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=54aaa84bae9a5d6960747525e237ad0272ed5c79;p=libreriscv.git --- diff --git a/openpower/sv/twin_butterfly.mdwn b/openpower/sv/twin_butterfly.mdwn index 3ceed592b..6329c898a 100644 --- a/openpower/sv/twin_butterfly.mdwn +++ b/openpower/sv/twin_butterfly.mdwn @@ -31,7 +31,6 @@ Arm includes special instructions to optimize these operations, although they ar The suggestion is to have a single instruction to calculate both values `((a + b) * c) >> N`, and `((a - b) * c) >> N`. The instruction will run in accumulate mode, so in order to calculate the 2-coeff version one would just have to call the same instruction with different order a, b and a different constant c. -``` # [DRAFT] Integer Butterfly Multiply Add/Sub FFT/DCT BF-Form