From 874556f4e1787ec25bdbe1ea22aedc22041094b0 Mon Sep 17 00:00:00 2001
From: lkcl <lkcl@web>
Date: Wed, 17 Aug 2022 08:37:20 +0100
Subject: [PATCH]

---
 openpower/sv/shape_table_format.mdwn | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/openpower/sv/shape_table_format.mdwn b/openpower/sv/shape_table_format.mdwn
index a4a2f31bf..894f96733 100644
--- a/openpower/sv/shape_table_format.mdwn
+++ b/openpower/sv/shape_table_format.mdwn
@@ -162,3 +162,8 @@ def index_remap(ISHAPE, i):
     return get_polymorphed_reg(svreg, srcwid, el_idx) + offs
 ```
 
+The most important observation above is that the Matrix-style
+remapping occurs first and the Index lookup second.  Thus it
+becomes possible to perform in-place Transpose of Indices which
+may have been costly to set up or costly to duplicate
+(waste register file space).
-- 
2.30.2