From 63e27d930a1ae81892468f18bd601d7657908d14 Mon Sep 17 00:00:00 2001 From: lkcl Date: Tue, 24 Aug 2021 17:43:06 +0100 Subject: [PATCH] --- openpower/sv/branches.mdwn | 3 +++ 1 file changed, 3 insertions(+) diff --git a/openpower/sv/branches.mdwn b/openpower/sv/branches.mdwn index b5b0945e0..28db6bb06 100644 --- a/openpower/sv/branches.mdwn +++ b/openpower/sv/branches.mdwn @@ -147,6 +147,9 @@ behaviour. Given that Vertical-First steps through one element at a time, standard single (v3.0B) CTR decrementing should correspondingly be used. +If CTR+VLSET Modes are requested, the amount that CTR is decremented +by is the value of VL *after* truncation (should that occur). + Note that, interestingly, due to the useful side-effects of `VLSET` mode it is actually useful to use Branch Conditional even to perform no actual branch operation, i.e to point to the instruction -- 2.30.2