decoder/helpers: support XLCASTS

diff --git a/src/openpower/decoder/helpers.py b/src/openpower/decoder/helpers.py
index 3b142e1a9a5e96b47259802a7afc4d04e7a95d48..84300ba0d92367d98b5ceb4a0a6f8e993056e2a8 100644 (file)
--- a/src/openpower/decoder/helpers.py
+++ b/src/openpower/decoder/helpers.py
@@ -450,6 +450,9 @@ class ISACallerHelper:
     def XLEN(self):
         return self.__XLEN
 
+    def XLCASTS(self, value):
+        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)