From: lkcl <lkcl@web>
Date: Sun, 21 Aug 2022 21:10:23 +0000 (+0100)
Subject: (no commit message)
X-Git-Tag: opf_rfc_ls005_v1~794
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=4418717c67f80e904642d7b6adc82ff73da4ab89;p=libreriscv.git

---

diff --git a/openpower/sv.mdwn b/openpower/sv.mdwn
index b7598dd5f..75f52b1a7 100644
--- a/openpower/sv.mdwn
+++ b/openpower/sv.mdwn
@@ -36,6 +36,11 @@ Fundamental design principles:
 * Preserving the underlying scalar execution dependencies as if the
   for-loop had been expanded as actual scalar instructions
   (termed "preserving Program Order")
+* Specifically designed to be Precise-Interruptible at all times
+  (many Vector ISAs have operations which, due to higher internal
+  accuracy or other complexity, must be effectively atomic for
+  the full Vector operation's duration, adversely affecting interrupt
+  response latency)
 * Augments ("tags") existing instructions, providing Vectorisation
   "context" rather than adding new instructions.
 * Strictly does not interfere with or alter the non-Scalable Power ISA