From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Tue, 31 Mar 2020 15:29:00 +0000 (+0100)
Subject: assume 32-to-64 bit zero-extension
X-Git-Tag: div_pipeline~1588
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=217262b9c7f33680dcffa6a52df64c61ebc44813;p=soc.git

assume 32-to-64 bit zero-extension
---

diff --git a/src/soc/decoder/helpers.py b/src/soc/decoder/helpers.py
index 849328d6..95aa2852 100644
--- a/src/soc/decoder/helpers.py
+++ b/src/soc/decoder/helpers.py
@@ -6,6 +6,9 @@ def exts(value, bits):
 def EXTS64(value):
     return exts(value, 32) & ((1<<64)-1)
 
+def EXTZ64(value):
+    return value & ((1<<32)-1)
+
 def rotl(value, bits, wordlen):
     mask = (1 << wordlen) - 1
     bits = bits & (wordlen - 1)