From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Sun, 27 May 2018 20:20:45 +0000 (+0100)
Subject: add scalar detection diagram
X-Git-Tag: convert-csv-opcode-to-binary~5329
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=8d445f650c8274a6bde360c850617245bb6d53d1;p=libreriscv.git

add scalar detection diagram
---

diff --git a/simple_v_extension.mdwn b/simple_v_extension.mdwn
index 145d37b0b..33a260919 100644
--- a/simple_v_extension.mdwn
+++ b/simple_v_extension.mdwn
@@ -1810,7 +1810,10 @@ discussion then led to the question of OoO architectures
 
 ## Implementation detail for scalar-only op detection <a name="scalar_detection"></a>
 
-Note: this is just one possible implementation.  Another implementation
+Note 1: this idea is a pipeline-bypass concept, which may *or may not* be
+worthwhile.
+
+Note 2: this is just one possible implementation.  Another implementation
 may choose to treat *all* operations as vectorised (including treating
 scalars as vectors of length 1), choosing to add an extra pipeline stage
 dedicated to *all* instructions.