From: Dmitry Selyutin <dmitry.selyutin@3mdeb.com>
Date: Tue, 28 Sep 2021 20:17:42 +0000 (+0000)
Subject: decoder/helpers: support XLCASTU
X-Git-Tag: sv_maxu_works-initial~810
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=1332cab74c71fd48e643f7aaf039c0d8467c40cb;p=openpower-isa.git

decoder/helpers: support XLCASTU
---

diff --git a/src/openpower/decoder/helpers.py b/src/openpower/decoder/helpers.py
index d51305b9..3b142e1a 100644
--- a/src/openpower/decoder/helpers.py
+++ b/src/openpower/decoder/helpers.py
@@ -450,6 +450,10 @@ class ISACallerHelper:
     def XLEN(self):
         return self.__XLEN
 
+    def XLCASTU(self, value):
+        bits = min(value.bits, self.XLEN)
+        return SelectableInt(value.value & ((1 << bits) - 1), self.XLEN)
+
     def __getattr__(self, attr):
         return getattr(sys.modules[ISACallerHelper.__module__], attr)