From fb9793e67ab46b386fa903324ca0a5cea73b0897 Mon Sep 17 00:00:00 2001
From: lkcl <lkcl@web>
Date: Tue, 7 Sep 2021 17:19:36 +0100
Subject: [PATCH]

---
 openpower/sv/cr_ops.mdwn | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/openpower/sv/cr_ops.mdwn b/openpower/sv/cr_ops.mdwn
index 33f607606..f539cc2ff 100644
--- a/openpower/sv/cr_ops.mdwn
+++ b/openpower/sv/cr_ops.mdwn
@@ -101,15 +101,18 @@ of the operation.
 
     for i in range(VL):
         # predication test, skip all masked out elements.
+        # skips when sz=0
         if predicate_masked_out(i):
              continue
+        # result is to go into CR. may be a 4-bit CR Field
+        # (3-bit mode) or just a single bit (5-bit mode)
         result = op(...)
-        CRnew = analyse(result) # calculates eq/lt/gt
-        # Rc=1 always stores the CR
-        if Rc=1 or RC1:
-            crregs[offs+i] = CRnew
+        # obtain CRbit from BA result operand field,
+        # if this CR op has 5-bit CR result operands
+        if 5bit mode:
+           CRbit = BA[3:4] 
         # now test CR, similar to branch
-        if RC1 or CRnew[BO[0:1]] != BO[2]:
+        if CRnew[CRbit] != inv:
             continue # test failed: cancel store
-        # result optionally stored but CR always is
-        iregs[RT+i] = result
+        # result optionally stored
+        update_CR(result)
-- 
2.30.2