diff --git a/gdb/ac_pp.py b/gdb/ac_pp.py
index 5e21ef6..16c0b66 100644
--- a/gdb/ac_pp.py
+++ b/gdb/ac_pp.py
@@ -4,9 +4,9 @@
  *                                                                        *
  *  Software Version: 3.7                                                 *
  *                                                                        *
- *  Release Date    : Wed Jun  1 13:21:52 PDT 2016                        *
+ *  Release Date    : Sat Jun 25 13:27:03 PDT 2016                        *
  *  Release Type    : Production Release                                  *
- *  Release Build   : 3.7.0                                               *
+ *  Release Build   : 3.7.1                                               *
  *                                                                        *
  *  Copyright 2013-2015, Mentor Graphics Corporation,                     *
  *                                                                        *
diff --git a/include/ac_channel.h b/include/ac_channel.h
index 67b21a9..470a5ba 100644
--- a/include/ac_channel.h
+++ b/include/ac_channel.h
@@ -4,9 +4,9 @@
  *                                                                        *
  *  Software Version: 3.7                                                 *
  *                                                                        *
- *  Release Date    : Wed Jun  1 13:21:52 PDT 2016                        *
+ *  Release Date    : Sat Jun 25 13:27:03 PDT 2016                        *
  *  Release Type    : Production Release                                  *
- *  Release Build   : 3.7.0                                               *
+ *  Release Build   : 3.7.1                                               *
  *                                                                        *
  *  Copyright 2004-2014, Mentor Graphics Corporation,                     *
  *                                                                        *
diff --git a/include/ac_complex.h b/include/ac_complex.h
index be95e07..4d03e80 100644
--- a/include/ac_complex.h
+++ b/include/ac_complex.h
@@ -4,9 +4,9 @@
  *                                                                        *
  *  Software Version: 3.7                                                 *
  *                                                                        *
- *  Release Date    : Wed Jun  1 13:21:52 PDT 2016                        *
+ *  Release Date    : Sat Jun 25 13:27:03 PDT 2016                        *
  *  Release Type    : Production Release                                  *
- *  Release Build   : 3.7.0                                               *
+ *  Release Build   : 3.7.1                                               *
  *                                                                        *
  *  Copyright 2008-2016, Mentor Graphics Corporation,                     *
  *                                                                        *
diff --git a/include/ac_fixed.h b/include/ac_fixed.h
index 0c6f110..4facfb9 100644
--- a/include/ac_fixed.h
+++ b/include/ac_fixed.h
@@ -4,9 +4,9 @@
  *                                                                        *
  *  Software Version: 3.7                                                 *
  *                                                                        *
- *  Release Date    : Wed Jun  1 13:21:52 PDT 2016                        *
+ *  Release Date    : Sat Jun 25 13:27:03 PDT 2016                        *
  *  Release Type    : Production Release                                  *
- *  Release Build   : 3.7.0                                               *
+ *  Release Build   : 3.7.1                                               *
  *                                                                        *
  *  Copyright 2005-2016, Mentor Graphics Corporation,                     *
  *                                                                        *
diff --git a/include/ac_float.h b/include/ac_float.h
index 31be16f..4375323 100644
--- a/include/ac_float.h
+++ b/include/ac_float.h
@@ -4,9 +4,9 @@
  *                                                                        *
  *  Software Version: 3.7                                                 *
  *                                                                        *
- *  Release Date    : Wed Jun  1 13:21:52 PDT 2016                        *
+ *  Release Date    : Sat Jun 25 13:27:03 PDT 2016                        *
  *  Release Type    : Production Release                                  *
- *  Release Build   : 3.7.0                                               *
+ *  Release Build   : 3.7.1                                               *
  *                                                                        *
  *  Copyright 2013-2016, Mentor Graphics Corporation,                     *
  *                                                                        *
@@ -751,7 +751,7 @@ namespace ac {
   template<typename T>
   struct ac_float_represent {
     typedef typename ac_fixed_represent<T>::type fx_t;
-    typedef ac_float<fx_t::width,fx_t::i_width,1,fx_t::q_mode> type; 
+    typedef ac_float<fx_t::width+!fx_t::sign,fx_t::i_width+!fx_t::sign,1,fx_t::q_mode> type; 
   };
   template<> struct ac_float_represent<float> {
     typedef ac_private::ac_float_cfloat_t type;
diff --git a/include/ac_int.h b/include/ac_int.h
index 5660cc0..4433e02 100644
--- a/include/ac_int.h
+++ b/include/ac_int.h
@@ -4,9 +4,9 @@
  *                                                                        *
  *  Software Version: 3.7                                                 *
  *                                                                        *
- *  Release Date    : Wed Jun  1 13:21:52 PDT 2016                        *
+ *  Release Date    : Sat Jun 25 13:27:03 PDT 2016                        *
  *  Release Type    : Production Release                                  *
- *  Release Build   : 3.7.0                                               *
+ *  Release Build   : 3.7.1                                               *
  *                                                                        *
  *  Copyright 2004-2016, Mentor Graphics Corporation,                     *
  *                                                                        *
diff --git a/include/ac_sc.h b/include/ac_sc.h
index 216b0a2..091deff 100644
--- a/include/ac_sc.h
+++ b/include/ac_sc.h
@@ -4,9 +4,9 @@
  *                                                                        *
  *  Software Version: 3.7                                                 *
  *                                                                        *
- *  Release Date    : Wed Jun  1 13:21:52 PDT 2016                        *
+ *  Release Date    : Sat Jun 25 13:27:03 PDT 2016                        *
  *  Release Type    : Production Release                                  *
- *  Release Build   : 3.7.0                                               *
+ *  Release Build   : 3.7.1                                               *
  *                                                                        *
  *  Copyright 2004-2016, Mentor Graphics Corporation,                     *
  *                                                                        *
diff --git a/pdfdocs/ac_datatypes_ref.pdf b/pdfdocs/ac_datatypes_ref.pdf
index 898ec87..5d300ed 100644
Binary files a/pdfdocs/ac_datatypes_ref.pdf and b/pdfdocs/ac_datatypes_ref.pdf differ
diff --git a/pdfdocs/ac_datatypes_relnotes.pdf b/pdfdocs/ac_datatypes_relnotes.pdf
index 08eb742..2dc5b6b 100644
Binary files a/pdfdocs/ac_datatypes_relnotes.pdf and b/pdfdocs/ac_datatypes_relnotes.pdf differ