power_enums: introduce Reg or_zero property

diff --git a/src/openpower/decoder/power_enums.py b/src/openpower/decoder/power_enums.py
index e2c5b93bad3fc8a01122a2db9271294a4248a88b..5e4d242fb5040895e2778f4b6aa2817c55901843 100644 (file)
--- a/src/openpower/decoder/power_enums.py
+++ b/src/openpower/decoder/power_enums.py
@@ -320,6 +320,13 @@ class Reg(Enum):
 
         return self
 
+    @property
+    def or_zero(self):
+        return (self in (
+            Reg.RA_OR_ZERO,
+            Reg.RT_OR_ZERO,
+        ))
+
 
 @unique
 class SVP64PredMode(Enum):