From: lkcl <lkcl@web>
Date: Tue, 22 Dec 2020 18:02:31 +0000 (+0000)
Subject: (no commit message)
X-Git-Tag: convert-csv-opcode-to-binary~1036
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ed1abb76b6d931e5925acd14604ea9050d246fe0;p=libreriscv.git

---

diff --git a/openpower/sv/vector_ops.mdwn b/openpower/sv/vector_ops.mdwn
index 682b3973b..a450aea5e 100644
--- a/openpower/sv/vector_ops.mdwn
+++ b/openpower/sv/vector_ops.mdwn
@@ -54,8 +54,49 @@ Example
 
 The vmsbf.m instruction takes a mask register as input and writes results to a mask register. The instruction writes a 1 to all active mask elements before the first source element that is a 1, then writes a 0 to that element and all following active elements. If there is no set bit in the source vector, then all active elements in the destination are written with a 1.
 
+## sifm
 
-## vmsif
+The vector mask set-including-first instruction is similar to set-before-first, except it also includes the element with a set bit.
+
+    sifm RT, RA, RB!=0
+
+ # Example
+
+     7 6 5 4 3 2 1 0   Bit number
+
+     1 0 0 1 0 1 0 0   v3 contents
+                       vmsif.m v2, v3
+     0 0 0 0 0 1 1 1   v2 contents
+
+     1 0 0 1 0 1 0 1   v3 contents
+                       vmsif.m v2, v3
+     0 0 0 0 0 0 0 1   v2
+
+     1 1 0 0 0 0 1 1   RB vcontents
+     1 0 0 1 0 1 0 0   v3 contents
+                       vmsif.m v2, v3, v0.t
+     1 1 x x x x 1 1   v2 contents
 
 ## vmsof
 
+The vector mask set-only-first instruction is similar to set-before-first, except it only sets the first element with a bit set, if any.
+
+    sofm RT, RA, RB
+
+ # Example
+
+     7 6 5 4 3 2 1 0   Bit number
+
+     1 0 0 1 0 1 0 0   v3 contents
+                       vmsof.m v2, v3
+     0 0 0 0 0 1 0 0   v2 contents
+
+     1 0 0 1 0 1 0 1   v3 contents
+                       vmsof.m v2, v3
+     0 0 0 0 0 0 0 1   v2
+
+     1 1 0 0 0 0 1 1   RB vcontents
+     1 1 0 1 0 1 0 0   v3 contents
+                       vmsof.m v2, v3, v0.t
+     0 1 x x x x 0 0   v2 content
+