From: Eric Blossom <eb@comsec.com>
Date: Mon, 10 May 2010 21:31:15 +0000 (-0700)
Subject: Add gru.hexshort to deal with short hex constants
X-Git-Url: https://git.gag.com/?p=debian%2Fgnuradio;a=commitdiff_plain;h=1fc7c57f778a9f05ded1d216247242ee13632d03

Add gru.hexshort to deal with short hex constants
---

diff --git a/gnuradio-core/src/python/gnuradio/gruimpl/hexint.py b/gnuradio-core/src/python/gnuradio/gruimpl/hexint.py
index 8d46e819..f2808c44 100644
--- a/gnuradio-core/src/python/gnuradio/gruimpl/hexint.py
+++ b/gnuradio-core/src/python/gnuradio/gruimpl/hexint.py
@@ -30,3 +30,15 @@ def hexint(mask):
   if mask >= 2**31:
      return int(mask-2**32)
   return mask
+
+def hexshort(mask):
+  """
+  Convert unsigned masks into signed shorts.
+
+  This allows us to use hex constants like 0x8000 when talking to
+  our hardware and not get screwed by them getting treated as python
+  longs.
+  """
+  if mask >= 2**15:
+    return int(mask-2**16)
+  return mask