From: lkcl Date: Sat, 28 May 2022 18:59:50 +0000 (+0100) Subject: (no commit message) X-Git-Tag: opf_rfc_ls005_v1~2046 X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=dc650acd095d016b7baf926aa33aaf91f4017878;p=libreriscv.git --- diff --git a/openpower/sv/branches.mdwn b/openpower/sv/branches.mdwn index 40dee32e1..b2276fdff 100644 --- a/openpower/sv/branches.mdwn +++ b/openpower/sv/branches.mdwn @@ -330,7 +330,9 @@ multi-issue, and for each Branch Unit to compute how many times CTR would be subtracted, in a fully-deterministic and parallel fashion. A SIMD-based Branch Unit, receiving and processing multiple CR Fields covered by multiple predicate bits, would -do the exact same thing.* +do the exact same thing. Obviously, however, if CTR is modified +within any given loop (mtctr) the behaviour of CTR is no longer +deterministic.* ## Link Register Update