From 9e642a2ea88d5011a64b22dee99903478aeba0bd Mon Sep 17 00:00:00 2001
From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Wed, 26 Oct 2022 14:15:06 +0100
Subject: [PATCH] restore Z23 shadd/shadduw

---
 src/openpower/sv/trans/svp64.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/openpower/sv/trans/svp64.py b/src/openpower/sv/trans/svp64.py
index 1a7bade8..fb9dc6e2 100644
--- a/src/openpower/sv/trans/svp64.py
+++ b/src/openpower/sv/trans/svp64.py
@@ -591,7 +591,7 @@ def va_form(fields, XO):
     _insn("shadd.", PO=22, XO=0b01101110, Rc=1),
     _insn("shadduw",  PO=22, XO=0b11101110, Rc=0),
     _insn("shadduw.", PO=22, XO=0b11101110, Rc=1),
-)
+)   
 def Z23(fields, PO, XO, Rc):
     # XXX WARNING THESE ARE NOT APPROVED BY OPF ISA WG
     # 1.6.27 Z23-FORM
@@ -603,8 +603,8 @@ def Z23(fields, PO, XO, Rc):
         (RT, 6, 10),
         (RA, 11, 15),
         (RB, 16, 20),
-        (RC, 21, 25),
-        (XO, 26, 30),
+        (sm, 21, 22),
+        (XO, 23, 30),
         (Rc, 31, 31),
     )
 
-- 
2.30.2