From 4d4341a2dffae646c565c6c74e0ff7127ea84b3b Mon Sep 17 00:00:00 2001 From: lkcl Date: Sun, 29 May 2022 10:18:31 +0100 Subject: [PATCH] --- openpower/sv.mdwn | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/openpower/sv.mdwn b/openpower/sv.mdwn index 13e7812fb..23eca5283 100644 --- a/openpower/sv.mdwn +++ b/openpower/sv.mdwn @@ -70,6 +70,13 @@ same level as add, popcnt and fld** for a location at all, and may be moved to EXT059, EXT019, EXT031 or other much more suitable location. +Note that there is no Sandbox allocation in the published ISA Spec for +v3.1 EXT01 usage, and because SVP64 is already 64-bit Prefixed, +Prefixed-Prefixed-instructions (SVP64 Prefixed v3.1 Prefixed) +would become a whopping 96-bit long instruction. Avoiding this +situation is a high priority which in turn by necessity puts pressure +on the 32-bit Major Opcode space. + # Sub-pages Pages being developed and examples -- 2.30.2