From: lkcl <lkcl@web>
Date: Thu, 23 Sep 2021 23:38:25 +0000 (+0100)
Subject: (no commit message)
X-Git-Tag: DRAFT_SVP64_0_1~32
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=746d034fc139140642a00cb9173c1a6ca7e97fc3;p=libreriscv.git

---

diff --git a/3d_gpu/architecture/dynamic_simd/cat.mdwn b/3d_gpu/architecture/dynamic_simd/cat.mdwn
index 9a3b37cd6..e6211a75d 100644
--- a/3d_gpu/architecture/dynamic_simd/cat.mdwn
+++ b/3d_gpu/architecture/dynamic_simd/cat.mdwn
@@ -60,9 +60,14 @@ Finally when 4x:
 By a lucky coincidence the lengths match up.  In the 1x case,
 the result is a single 48-bit quantity.  In the 2x case,
 the result is two 24-bit quantities. Finally in the 4x case,
-the rwsult is four 12-bit quantities.
+the result is four 12-bit quantities.
 
 The reason this works is down to the requirement that Partitions be
 of equal sizes.  4x 4-bit to be Concatenated with 4x 8-bit, in
 the last example.
 
+Table for 3-way concatenation, divided by partition:
+
+| partition | o3       | o2       | o1       | o0       |
+| 000       | a3 a2 a1 | a0 b3 b2 | b1 b0 c3 | c2 c1 c0 |
+| 111       | a3 b3 c3 | a2 b2 c2 | a1 b1 c1 | a0 b0 c0 |