From f9110e7ebbb882e4a24e3ca55e5aaa13649f7d1c Mon Sep 17 00:00:00 2001 From: lkcl Date: Mon, 26 Oct 2020 09:57:17 +0000 Subject: [PATCH] --- openpower/sv/predication.mdwn | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/openpower/sv/predication.mdwn b/openpower/sv/predication.mdwn index 36f66107e..61b4bcd84 100644 --- a/openpower/sv/predication.mdwn +++ b/openpower/sv/predication.mdwn @@ -113,7 +113,8 @@ This idea has several disadvantages. Ordinarily (i.e. without the predicate involved), Cray-style "chaining" would be possible. The single DM entry for the entire predicate mask prohibits this because the subsequent operations can only proceed when - the *entire* mask has been computed. + the *entire* mask has been computed and placed in full + into the scalar integer register. * Allocation of bits to FUs gets particularly complex for SIMD (elwidth overrides) requiring shift and mask logic that is simply not needed compared to "one-for-one" schemes (above) -- 2.30.2