From 945ced0ef9cad91aab6a7c050aa7804015cba53f Mon Sep 17 00:00:00 2001 From: lkcl Date: Thu, 9 Jun 2022 11:01:18 +0100 Subject: [PATCH] --- openpower/sv/svp64_quirks.mdwn | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/openpower/sv/svp64_quirks.mdwn b/openpower/sv/svp64_quirks.mdwn index 0b967f366..423cb47b3 100644 --- a/openpower/sv/svp64_quirks.mdwn +++ b/openpower/sv/svp64_quirks.mdwn @@ -27,7 +27,8 @@ exempts element width overrides, which still do not actually modify the meaning of the instruction: an add remains an add, even if its override makes it an 8-bit add rather than a 64-bit add. Even add-with-carry remains an add-with-carry: it's just -that when elwidth=8 in the Prefix it's an *8-bit* add-with-carry. +that when elwidth=8 in the Prefix it's an *8-bit* add-with-carry, +where the 9th bit becomes Carry-out, not the 65th bit. In other words, elwidth overrides **definitely** do not fundamentally alter the actual Scalar v3.0 ISA encoding itself. Consequently we can still, in -- 2.30.2