From: Dmitry Selyutin <dmitry.selyutin@3mdeb.com>
Date: Sat, 2 Oct 2021 09:12:13 +0000 (+0000)
Subject: decoder/helpers: simplify XLCASTU
X-Git-Tag: sv_maxu_works-initial~782
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=45e739e1bdb44b6975c1826cbd0606667e4f73b7;p=openpower-isa.git

decoder/helpers: simplify XLCASTU
---

diff --git a/src/openpower/decoder/helpers.py b/src/openpower/decoder/helpers.py
index a11081bc..be6ab496 100644
--- a/src/openpower/decoder/helpers.py
+++ b/src/openpower/decoder/helpers.py
@@ -454,8 +454,8 @@ class ISACallerHelper:
         return SelectableInt(exts(value.value, self.XLEN), self.XLEN)
 
     def XLCASTU(self, value):
-        bits = min(value.bits, self.XLEN)
-        return SelectableInt(value.value & ((1 << bits) - 1), self.XLEN)
+        # SelectableInt already takes care of masking out the bits
+        return SelectableInt(value.value, self.XLEN)
 
     def __getattr__(self, attr):
         try: