1 files changed, 44 insertions, 0 deletions
diff --git a/gnuradio-runtime/python/gnuradio/gru/hexint.py b/gnuradio-runtime/python/gnuradio/gru/hexint.py
new file mode 100644
index 0000000000..0fb5ecde04
--- /dev/null
+++ b/gnuradio-runtime/python/gnuradio/gru/hexint.py
@@ -0,0 +1,44 @@
+#
+# Copyright 2005 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING.  If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+def hexint(mask):
+  """
+  Convert unsigned masks into signed ints.
+
+  This allows us to use hex constants like 0xf0f0f0f2 when talking to
+  our hardware and not get screwed by them getting treated as python
+  longs.
+  """
+  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