Version bump

Fix array extraction of implicit vars, bug601.
Fix package import preventing local var, bug599.
2026-10-04 17:13:40 +02:00 · 2013-01-09 22:08:30 -05:00 · 2013-01-09 19:00:12 -05:00 · 2013-01-08 19:06:52 -05:00 · 2013-01-02 18:35:21 -05:00 · 2013-01-01 09:42:59 -05:00
279 changed files with 2096 additions and 690 deletions
@@ -3,6 +3,38 @@ Revision history for Verilator
 The contributors that suggested a given feature are shown in [].  [by ...]
 indicates the contributor was also the author of the fix; Thanks!

+* Verilator 3.844 2013/01/09
+
+***   Support "unsigned int" DPI import functions, msg966.  [Alex Lee]
+
+***   Fix package resolution of parameters, bug586. [Jeremy Bennett]
+
+****  Fix non-integer vpi_get_value, bug587.  [Rich Porter]
+
+****  Fix task inlining under $display and case, bug589, bug598.  [Holger Waechtler]
+
+****  Fix package import of non-localparam parameter, bug591.  [Jeremy Bennett]
+
+****  Fix package import of package imports, partial bug592.  [Jeremy Bennett]
+
+****  Fix package import preventing local var, bug599.  [Jeremy Bennett]
+
+****  Fix array extraction of implicit vars, bug601.  [Joe Eiler]
+
+
+* Verilator 3.843 2012/12/01
+
+***   Add +1364-1995ext and similar language options, bug532.  [Jeremy Bennett]
+
+****  Fix mis-optimized identical submodule subtract, bug581.  [Charlie Brej]
+
+****  Fix crash on dotted references into dead modules, bug583.  [Jeremy Bennett]
+
+****  Fix compile issues on MSVCC, bug571, bug577.  [Amir Gonnen]
+
+****  Fix --debug overriding preceding --dump-treei, bug580.  [Jeremy Bennett]
+
+
 * Verilator 3.842 2012/11/03

 ****  Add -x-initial-edge, bug570.  [Jeremy Bennett]
@@ -2119,7 +2151,7 @@ of input ports exists for tracing.

 This uses outline mode in Emacs.  See C-h m [M-x describe-mode].

-Copyright 2001-2012 by Wilson Snyder.  This program is free software; you
+Copyright 2001-2013 by Wilson Snyder.  This program is free software; you
 can redistribute it and/or modify it under the terms of either the GNU
 Lesser General Public License Version 3 or the Perl Artistic License
 Version 2.0.
@@ -9,7 +9,7 @@
 #
 #*****************************************************************************
 #
-# Copyright 2003-2012 by Wilson Snyder. This program is free software; you can
+# Copyright 2003-2013 by Wilson Snyder. This program is free software; you can
 # redistribute it and/or modify it under the terms of either the GNU
 # Lesser General Public License Version 3 or the Perl Artistic License
 # Version 2.0.
@@ -1,6 +1,6 @@
 // DESCRIPTION: Verilator: List of To Do issues.
 //
-// Copyright 2004-2012 by Wilson Snyder. This program is free software; you can
+// Copyright 2004-2013 by Wilson Snyder. This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -62,7 +62,7 @@ Usability:
 	* Print version/etc message at runtime. (4.000?)
 	  Include number of lines of code, percent comments, code complexity measurement
 	  <-80chars------------------------------------------------------------------->
-	  Verilator 3.600 - fast, free, open-sourced.  Copyright 2001-2012.
+	  Verilator 3.600 - fast, free, open-sourced.  Copyright 2001-2013.
 	  Verilated #### modules, #### instances, ##### sigs,
 	  	    #### non-comment lines, ##### ops, ### KB model size
 	* Default the --l2name to remove extra "v" level of hierarchy (flag to make "top")
@@ -3,7 +3,7 @@ eval 'exec perl -wS $0 ${1+"$@"}'
  if 0;
 ######################################################################
 #
-# Copyright 2003-2012 by Wilson Snyder. This program is free software; you
+# Copyright 2003-2013 by Wilson Snyder. This program is free software; you
 # can redistribute it and/or modify it under the terms of either the GNU
 # Lesser General Public License Version 3 or the Perl Artistic License
 # Version 2.0.
@@ -241,6 +241,11 @@ descriptions in the next sections for more information.
    {file.c/cc/cpp}             Optional C++ files to compile in
    {file.a/o/so}               Optional C++ files to link in

+     +1364-1995ext+<ext>        Use Verilog 1995 with file extension <ext>
+     +1364-2001ext+<ext>        Use Verilog 2001 with file extension <ext>
+     +1364-2005ext+<ext>        Use Verilog 2005 with file extension <ext>
+     +1800-2005ext+<ext>        Use SystemVerilog 2005 with file extension <ext>
+     +1800-2009ext+<ext>        Use SystemVerilog 2009 with file extension <ext>
    --assert                    Enable all assertions
    --autoflush                 Flush streams after all $displays
    --bbox-sys                  Blackbox unknown $system calls
@@ -261,6 +266,7 @@ descriptions in the next sections for more information.
    --debug-check               Enable debugging assertions
    --debugi <level>            Enable debugging at a specified level
    --debugi-<srcfile> <level>  Enable debugging a source file at a level
+    --default-language <lang>   Default language to parse
     +define+<var>+<value>      Set preprocessor define
    --dump-tree                 Enable dumping .tree files
    --dump-treei <level>        Enable dumping .tree files at a level
@@ -279,7 +285,7 @@ descriptions in the next sections for more information.
    --inline-mult <value>       Tune module inlining
     -LDFLAGS <flags>           Linker pre-object flags for makefile
     -LDLIBS <flags>            Linker library flags for makefile
-    --language <lang>           Language standard to parse
+    --language <lang>           Default language standard to parse
     +libext+<ext>+[ext]...     Extensions for finding modules
    --lint-only                 Lint, but do not make output
    --MMD                       Create .d dependency files
@@ -308,6 +314,7 @@ descriptions in the next sections for more information.
    --sp                        Create SystemPerl output
    --stats                     Create statistics file
     -sv                        Enable SystemVerilog parsing
+     +systemverilogext+<ext>    Synonym for +1800-2009ext+<ext>
    --top-module <topname>      Name of top level input module
    --trace                     Enable waveform creation
    --trace-depth <levels>      Depth of tracing
@@ -320,6 +327,8 @@ descriptions in the next sections for more information.
    --unused-regexp <regexp>    Tune UNUSED lint signals
     -V                         Verbose version and config
     -v <filename>              Verilog library
+     +verilog1995ext+<ext>      Synonym for +1364-1995ext+<ext>
+     +verilog2001ext+<ext>      Synonym for +1364-2001ext+<ext>
     -Werror-<message>          Convert warning to error
     -Wfuture-<message>         Disable unknown message warnings
     -Wno-<message>             Disable warning
@@ -355,6 +364,41 @@ this way, Verilator will include a make rule that uses these files when
 linking the I<module> executable.  This generally is only useful when used
 with the --exe option.

+=item +1364-1995ext+I<ext>
+
+=item +1364-2001ext+I<ext>
+
+=item +1364-2005ext+I<ext>
+
+=item +1800-2005ext+I<ext>
+
+=item +1800-2009ext+I<ext>
+
+Specifies the language standard to be used with a specific filename
+extension, I<ext>.
+
+For compatibility with other simulators, see also the synonyms
+C<+verilog1995ext+>I<ext>, C<+verilog2001ext+>I<ext>, and
+C<+systemverilogext+>I<ext>.
+
+For any source file, the language specified by these options takes
+precedence over any language specified by the C<--default-language> or
+C<--language> options.
+
+These options take effect in the order they are encountered. Thus the
+following would use Verilog 1995 for C<a.v> and Verilog 2001 for C<b.v>.
+
+    verilator ... +1364-1995ext+v a.v +1364-2001ext+v b.v
+
+These flags are only recommended for legacy mixed language designs, as the
+preferable option is to edit the code to repair new keywords, or add
+appropriate C<`begin_keywords>.
+
+B<Note> C<`begin_keywords> is a SystemVerilog construct, which specifies
+I<only> which the set of keywords is to be recognized. Whatever set is
+chosen, the semantics will be those of SystemVerilog. By contrast
+C<+1364-1995ext+> etc. specify both the syntax I<and> semantics to be used.
+
 =item --assert

 Enable all assertions, includes enabling the --psl flag.  (If psl is not
@@ -529,6 +573,7 @@ Rarely needed.  Enable internal debugging assertion checks, without
 changing debug verbosity.  Enabled automatically when --debug specified.

 =item --debugi <level>
+
 =item --debugi-<srcfile> <level>

 Rarely needed - for developer use.  Set internal debugging level globally
@@ -536,6 +581,25 @@ to the specified debug level (1-10) or set the specified source file to the
 specified level. Higher levels produce more detailed messages (plain
 C<--debug> is equivalent to C<--debugi 4>).

+=item --default-language I<value>
+
+Select the language to be used by default when first processing each
+Verilog file.  The language value must be "1364-1995", "1364-2001",
+"1364-2005", "1800-2005" or "1800-2009".
+
+Any language associated with a particular file extension (see the various
+I<lang>ext+ options) will be used in preference to the language specified
+by --default-language.
+
+The --default-language flag is only recommended for legacy code using the
+same language in all source files, as the preferable option is to edit the
+code to repair new keywords, or add appropriate C<`begin_keywords>. For
+legacy mixed language designs, the various +I<lang>ext+ options should be
+used.
+
+If no language is specified, either by this flag or +I<lang>ext+ options,
+then the latest SystemVerilog language (IEEE 1800-2009) is used.
+
 =item +define+I<var>+I<value>

 Defines the given preprocessor symbol.  Same as -D; +define is fairly
@@ -549,7 +613,7 @@ the Verilator Internals manual.  --dump-tree is enabled automatically with
 --debug, so "--debug --no-dump-tree" may be useful if the dump files are
 large and not desired.

-=item --dump-treei
+=item --dump-treei <level>

 Rarely needed.  Enable writing .tree debug files with a specific dumping
 level, 0 disbles dumps and is equivelent to "--no-dump-tree".  Level 9
@@ -645,15 +709,8 @@ in the Make variable LDLIBS, not LDFLAGS.)

 =item --language I<value>

-Select the language to be used when first processing each Verilog file.
-The language value must be "1364-1995", "1364-2001", "1364-2001",
-"1364-2005", "1800-2005", "VAMS-2.3".  Verilator also allows the
-non-standard "1800+VAMS" to allow both the full SystemVerilog and
-Verilog-AMS keywords.
-
-The --language flag is only recommended for legacy code, as the preferable
-option is to edit the code to repair new keywords, or add appropriate
-`begin_keywords.
+A synonym for C<--default-langauge>, for compatibility with other tools and
+earlier versions of Verilator.

 =item +libext+I<ext>+I<ext>...

@@ -860,6 +917,10 @@ Specifies SystemVerilog language features should be enabled; equivalent to
 "--language 1800-2005".  This option is selected by default, it exists for
 compatibility with other simulators.

+=item  +systemverilogext+I<ext>
+
+A synonym for C<+1800-2009ext+>I<ext>.
+
 =item --top-module I<topname>

 When the input Verilog contains more than one top level module, specifies
@@ -935,6 +996,12 @@ Read the filename as a Verilog library.  Any modules in the file may be
 used to resolve cell instantiations in the top level module, else ignored.
 Note -v is fairly standard across Verilog tools.

+=item  +verilog1995ext+I<ext>
+
+=item  +verilog2001ext+I<ext>
+
+Synonyms for C<+1364-1995ext+>I<ext> and C<+1364-2001ext+>I<ext> respectively
+
 =item -Wall

 Enable all warnings, including code style warnings that are normally
@@ -3641,7 +3708,7 @@ Thanks to them, and all those we've missed including above.

 The latest version is available from L<http://www.veripool.org/>.

-Copyright 2003-2012 by Wilson Snyder.  Verilator is free software; you can
+Copyright 2003-2013 by Wilson Snyder.  Verilator is free software; you can
 redistribute it and/or modify the Verilator internals under the terms of
 either the GNU Lesser General Public License Version 3 or the Perl Artistic
 License Version 2.0.
@@ -235,7 +235,7 @@ Do not show differences in line numbering.

 The latest version is available from L<http://www.veripool.org/verilator>.

-Copyright 2005-2012 by Wilson Snyder.  This package is free software; you can
+Copyright 2005-2013 by Wilson Snyder.  This package is free software; you can
 redistribute it and/or modify it under the terms of either the GNU Lesser
 General Public License Version 3 or the Perl Artistic License Version 2.0.

@@ -3,7 +3,7 @@ eval 'exec perl -wS $0 ${1+"$@"}'
  if 0;
 # DESCRIPTION: Print include statements for each ARGV
 #
-# Copyright 2003-2012 by Wilson Snyder. This package is free software; you can
+# Copyright 2003-2013 by Wilson Snyder. This package is free software; you can
 # redistribute it and/or modify it under the terms of either the GNU Lesser
 # General Public License Version 3 or the Perl Artistic License Version 2.0.
 ######################################################################
@@ -208,7 +208,7 @@ Displays this message and program version and exits.

 The latest version is available from L<http://www.veripool.org/>.

-Copyright 2007-2012 by Wilson Snyder.  Verilator is free software; you can
+Copyright 2007-2013 by Wilson Snyder.  Verilator is free software; you can
 redistribute it and/or modify it under the terms of either the GNU Lesser
 General Public License Version 3 or the Perl Artistic License Version 2.0.

@@ -1,12 +1,12 @@
 # DESCRIPTION: Process this file with autoconf to produce a configure script.
 #
-# Copyright 2003-2012 by Wilson Snyder. Verilator is free software; you can
+# Copyright 2003-2013 by Wilson Snyder. Verilator is free software; you can
 # redistribute it and/or modify it under the terms of either the GNU Lesser
 # General Public License Version 3 or the Perl Artistic License Version 2.0.

 #AC_INIT([Verilator],[#.### YYYY-MM-DD])
 #AC_INIT([Verilator],[#.### devel])
-AC_INIT([Verilator],[3.842 2012-11-03])
+AC_INIT([Verilator],[3.844 2013-01-09])
 AC_CONFIG_HEADER(src/config_build.h)
 AC_CONFIG_FILES(Makefile src/Makefile src/Makefile_obj include/verilated.mk)

@@ -1,7 +1,7 @@
 // -*- mode: C++; c-file-style: "cc-mode" -*-
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder. This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder. This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License.
 // Version 2.0.
@@ -1,7 +1,7 @@
 // -*- mode: C++; c-file-style: "cc-mode" -*-
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder. This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder. This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License.
 // Version 2.0.
@@ -2,7 +2,7 @@
 ######################################################################
 # DESCRIPTION: Makefile commands for all verilated target files
 #
-# Copyright 2003-2012 by Wilson Snyder. Verilator is free software; you can
+# Copyright 2003-2013 by Wilson Snyder. Verilator is free software; you can
 # redistribute it and/or modify it under the terms of either the GNU Lesser
 # General Public License Version 3 or the Perl Artistic License Version 2.0.
 ######################################################################
@@ -4,7 +4,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder. This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder. This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License.
 // Version 2.0.
@@ -1,7 +1,7 @@
 // -*- mode: C++; c-file-style: "cc-mode" -*-
 //*************************************************************************
 //
-// Copyright 2009-2012 by Wilson Snyder. This program is free software; you can
+// Copyright 2009-2013 by Wilson Snyder. This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License.
 // Version 2.0.
@@ -1,7 +1,7 @@
 // -*- mode: C++; c-file-style: "cc-mode" -*-
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder. This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder. This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License.
 // Version 2.0.
@@ -1,7 +1,7 @@
 // -*- mode: C++; c-file-style: "cc-mode" -*-
 //*************************************************************************
 //
-// Copyright 2010-2012 by Wilson Snyder. This program is free software; you can
+// Copyright 2010-2013 by Wilson Snyder. This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License.
 // Version 2.0.
@@ -1,7 +1,7 @@
 // -*- mode: C++; c-file-style: "cc-mode" -*-
 //*************************************************************************
 //
-// Copyright 2009-2012 by Wilson Snyder. This program is free software; you can
+// Copyright 2009-2013 by Wilson Snyder. This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License.
 // Version 2.0.
@@ -3,7 +3,7 @@
 //
 // THIS MODULE IS PUBLICLY LICENSED
 //
-// Copyright 2001-2012 by Wilson Snyder.  This program is free software;
+// Copyright 2001-2013 by Wilson Snyder.  This program is free software;
 // you can redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License Version 2.0.
 //
@@ -34,6 +34,13 @@
 # include <unistd.h>
 #endif

+#ifndef O_LARGEFILE // For example on WIN32
+# define O_LARGEFILE 0
+#endif
+#ifndef O_NONBLOCK
+# define O_NONBLOCK 0
+#endif
+
 // CONSTANTS
 static const char* VLTSAVE_HEADER_STR = "verilatorsave01\n";	///< Value of first bytes of each file
 static const char* VLTSAVE_TRAILER_STR = "vltsaved";	///< Value of last bytes of each file
@@ -3,7 +3,7 @@
 //
 // THIS MODULE IS PUBLICLY LICENSED
 //
-// Copyright 2012-2012 by Wilson Snyder.  This program is free software;
+// Copyright 2012-2013 by Wilson Snyder.  This program is free software;
 // you can redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License Version 2.0.
 //
@@ -1,7 +1,7 @@
 // -*- mode: C++; c-file-style: "cc-mode" -*-
 //*************************************************************************
 //
-// Copyright 2009-2012 by Wilson Snyder. This program is free software; you can
+// Copyright 2009-2013 by Wilson Snyder. This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License.
 // Version 2.0.
@@ -1,7 +1,7 @@
 // -*- mode: C++; c-file-style: "cc-mode" -*-
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder. This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder. This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License.
 // Version 2.0.
@@ -3,7 +3,7 @@
 //
 // THIS MODULE IS PUBLICLY LICENSED
 //
-// Copyright 2001-2012 by Wilson Snyder.  This program is free software;
+// Copyright 2001-2013 by Wilson Snyder.  This program is free software;
 // you can redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License Version 2.0.
 //
@@ -3,7 +3,7 @@
 //
 // THIS MODULE IS PUBLICLY LICENSED
 //
-// Copyright 2001-2012 by Wilson Snyder.  This program is free software;
+// Copyright 2001-2013 by Wilson Snyder.  This program is free software;
 // you can redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License Version 2.0.
 //
@@ -3,7 +3,7 @@
 //
 // THIS MODULE IS PUBLICLY LICENSED
 //
-// Copyright 2001-2012 by Wilson Snyder.  This program is free software;
+// Copyright 2001-2013 by Wilson Snyder.  This program is free software;
 // you can redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License Version 2.0.
 //
@@ -3,7 +3,7 @@
 //
 // THIS MODULE IS PUBLICLY LICENSED
 //
-// Copyright 2001-2012 by Wilson Snyder.  This program is free software;
+// Copyright 2001-2013 by Wilson Snyder.  This program is free software;
 // you can redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License Version 2.0.
 //
@@ -1,7 +1,7 @@
 // -*- mode: C++; c-file-style: "cc-mode" -*-
 //*************************************************************************
 //
-// Copyright 2009-2012 by Wilson Snyder. This program is free software; you can
+// Copyright 2009-2013 by Wilson Snyder. This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License.
 // Version 2.0.
@@ -1,7 +1,7 @@
 // -*- mode: C++; c-file-style: "cc-mode" -*-
 //*************************************************************************
 //
-// Copyright 2009-2012 by Wilson Snyder. This program is free software; you can
+// Copyright 2009-2013 by Wilson Snyder. This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License.
 // Version 2.0.
@@ -101,6 +101,7 @@ public:
    // cppcheck-suppress uninitVar  // m_value
    VerilatedVpioCb(const t_cb_data* cbDatap, QData time)
 	: m_cbData(*cbDatap), m_time(time) {
+        m_value.format = cbDatap->value?cbDatap->value->format:vpiSuppressVal;
 	m_cbData.value = &m_value;
    }
    virtual ~VerilatedVpioCb() {}
@@ -1,7 +1,7 @@
 // -*- mode: C++; c-file-style: "cc-mode" -*-
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder. This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder. This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License.
 // Version 2.0.
@@ -36,18 +36,22 @@ typedef signed __int8 int8_t;
 #endif

 /* Use to export a symbol from application */
+#ifndef DPI_DLLISPEC
 #if defined (_MSC_VER)
 #define DPI_DLLISPEC __declspec(dllimport)
 #else
 #define DPI_DLLISPEC
 #endif
+#endif

 /* Use to import a symbol into application */
+#ifndef DPI_DLLESPEC
 #if defined (_MSC_VER)
 #define DPI_DLLESPEC __declspec(dllexport)
 #else
 #define DPI_DLLESPEC
 #endif
+#endif

 /* Use to mark a function as external */
 #ifndef DPI_EXTERN
@@ -697,7 +697,7 @@ in C<src/Makefile_obj.in> and reconfigure.

 The latest version is available from L<http://www.veripool.org/>.

-Copyright 2008-2012 by Wilson Snyder.  Verilator is free software; you can
+Copyright 2008-2013 by Wilson Snyder.  Verilator is free software; you can
 redistribute it and/or modify it under the terms of either the GNU Lesser
 General Public License Version 3 or the Perl Artistic License Version 2.0.

@@ -1,7 +1,7 @@
 #!/usr/bin/perl -w
 ######################################################################
 #
-# Copyright 2007-2012 by Wilson Snyder.  This package is free software; you
+# Copyright 2007-2013 by Wilson Snyder.  This package is free software; you
 # can redistribute it and/or modify it under the terms of either the GNU
 # Lesser General Public License Version 3 or the Perl Artistic License
 # Version 2.0.
@@ -1,7 +1,7 @@
 #!/usr/bin/perl -w
 ######################################################################
 #
-# Copyright 2007-2012 by Wilson Snyder.  This package is free software; you
+# Copyright 2007-2013 by Wilson Snyder.  This package is free software; you
 # can redistribute it and/or modify it under the terms of either the GNU
 # Lesser General Public License Version 3 or the Perl Artistic License
 # Version 2.0.
@@ -143,7 +143,7 @@ Displays this message and program version and exits.

 =head1 DISTRIBUTION

-Copyright 2005-2012 by Wilson Snyder.  Verilator is free software; you can
+Copyright 2005-2013 by Wilson Snyder.  Verilator is free software; you can
 redistribute it and/or modify it under the terms of either the GNU Lesser
 General Public License Version 3 or the Perl Artistic License Version 2.0.

@@ -184,7 +184,7 @@ Displays this message and program version and exits.

 =head1 DISTRIBUTION

-Copyright 2005-2012 by Wilson Snyder.  Verilator is free software; you can
+Copyright 2005-2013 by Wilson Snyder.  Verilator is free software; you can
 redistribute it and/or modify it under the terms of either the GNU Lesser
 General Public License Version 3 or the Perl Artistic License Version 2.0.

@@ -1,7 +1,7 @@
 #!/usr/bin/perl -w
 ######################################################################
 #
-# Copyright 2007-2012 by Wilson Snyder.  This package is free software; you
+# Copyright 2007-2013 by Wilson Snyder.  This package is free software; you
 # can redistribute it and/or modify it under the terms of either the GNU
 # Lesser General Public License Version 3 or the Perl Artistic License
 # Version 2.0.
@@ -183,7 +183,7 @@ Runs a specific test stage (see the script).

 =head1 DISTRIBUTION

-Copyright 2009-2012 by Wilson Snyder.  This package is free software; you
+Copyright 2009-2013 by Wilson Snyder.  This package is free software; you
 can redistribute it and/or modify it under the terms of either the GNU
 Lesser General Public License Version 3 or the Perl Artistic License
 Version 2.0.
@@ -28,7 +28,7 @@ invoke_atsim - Invoke tool under "modules" command

 =head1 DISTRIBUTION

-Copyright 2005-2012 by Wilson Snyder.  This package is free software; you
+Copyright 2005-2013 by Wilson Snyder.  This package is free software; you
 can redistribute it and/or modify it under the terms of either the GNU
 Lesser General Public License Version 3 or the Perl Artistic License
 Version 2.0.
@@ -28,7 +28,7 @@ invoke_iccr - Invoke tool under "modules" command

 =head1 DISTRIBUTION

-Copyright 2007-2012 by Wilson Snyder.  This package is free software; you
+Copyright 2007-2013 by Wilson Snyder.  This package is free software; you
 can redistribute it and/or modify it under the terms of either the GNU
 Lesser General Public License Version 3 or the Perl Artistic License
 Version 2.0.
@@ -28,7 +28,7 @@ invoke_ncverilog - Invoke tool under "modules" command

 =head1 DISTRIBUTION

-Copyright 2005-2012 by Wilson Snyder.  This package is free software; you
+Copyright 2005-2013 by Wilson Snyder.  This package is free software; you
 can redistribute it and/or modify it under the terms of either the GNU
 Lesser General Public License Version 3 or the Perl Artistic License
 Version 2.0.
@@ -28,7 +28,7 @@ invoke_vcs - Invoke tool under "modules" command

 =head1 DISTRIBUTION

-Copyright 2005-2012 by Wilson Snyder.  This package is free software; you
+Copyright 2005-2013 by Wilson Snyder.  This package is free software; you
 can redistribute it and/or modify it under the terms of either the GNU
 Lesser General Public License Version 3 or the Perl Artistic License
 Version 2.0.
@@ -1,7 +1,7 @@
 #!/usr/bin/perl -w
 ######################################################################
 #
-# Copyright 2010-2012 by Wilson Snyder.  This package is free software; you
+# Copyright 2010-2013 by Wilson Snyder.  This package is free software; you
 # can redistribute it and/or modify it under the terms of either the GNU
 # Lesser General Public License Version 3 or the Perl Artistic License
 # Version 2.0.
@@ -331,7 +331,7 @@ Displays this message and program version and exits.

 =head1 DISTRIBUTION

-Copyright 2005-2012 by Wilson Snyder.  Verilator is free software; you can
+Copyright 2005-2013 by Wilson Snyder.  Verilator is free software; you can
 redistribute it and/or modify it under the terms of either the GNU Lesser
 General Public License Version 3 or the Perl Artistic License Version 2.0.

@@ -9,7 +9,7 @@ This is the Verilator Package README file.

 =head1 DISTRIBUTION

-This package is Copyright 2003-2012 by Wilson Snyder.  (Report bugs to
+This package is Copyright 2003-2013 by Wilson Snyder.  (Report bugs to
 L<http://www.veripool.org/>.)

 Verilator is free software; you can redistribute it and/or modify it under
@@ -1,6 +1,6 @@
 # DESCRIPTION: Verilator: GDB startup file with useful defines
 #
-# Copyright 2012-2012 by Wilson Snyder. This program is free software; you can
+# Copyright 2012-2013 by Wilson Snyder. This program is free software; you can
 # redistribute it and/or modify it under the terms of either the GNU
 # Lesser General Public License Version 3 or the Perl Artistic License
 # Version 2.0.
@@ -7,7 +7,7 @@
 #
 #*****************************************************************************
 #
-# Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+# Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 # redistribute it and/or modify it under the terms of either the GNU
 # Lesser General Public License Version 3 or the Perl Artistic License
 # Version 2.0.
@@ -7,7 +7,7 @@
 #
 #*****************************************************************************
 #
-# Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+# Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 # redistribute it and/or modify it under the terms of either the GNU
 # Lesser General Public License Version 3 or the Perl Artistic License
 # Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2005-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2005-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2005-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2005-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2005-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2005-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2005-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2005-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -356,6 +356,9 @@ public:
    bool isDpiUnsupported() const {
 	return (m_e==LOGIC || m_e==TIME);
    }
+    bool isDpiUnsignable() const {  // Can add "unsigned" to DPI
+	return (m_e==BYTE || m_e==SHORTINT || m_e==INT || m_e==LONGINT || m_e==INTEGER);
+    }
    bool isOpaque() const {  // IE not a simple number we can bit optimize
 	return (m_e==STRING || m_e==SCOPEPTR || m_e==CHARPTR || m_e==DOUBLE || m_e==FLOAT);
    }
@@ -502,11 +505,7 @@ class AstParseRefExp {
 public:
    enum en {
 	PX_NONE,	// Used in V3LinkParse only
-	PX_TEXT,	// Unknown ID component
-	PX_PREDOT,	// Module name or misc component above var/task/func/member
-	PX_VAR_MEM,	// Variable that must be a memory
-	PX_VAR_ANY,	// Variable/structure member
-	PX_FTASK	// Task/Function (AstParse::ftaskrefp() will be set)
+	PX_TEXT		// Unknown ID component
    };
    enum en m_e;
    inline AstParseRefExp() : m_e(PX_NONE) {}
@@ -515,7 +514,7 @@ public:
    operator en () const { return m_e; }
    const char* ascii() const {
 	static const char* names[] = {
-	    "","TEXT","PREDOT","VAR_MEM","VAR_ANY","FTASK"};
+	    "","TEXT","PREDOT"};
 	return names[m_e]; }
  };
  inline bool operator== (AstParseRefExp lhs, AstParseRefExp rhs) { return (lhs.m_e == rhs.m_e); }
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -268,6 +268,9 @@ string AstVar::dpiArgType(bool named, bool forReturn) const {
 	}
    } else {
 	arg = basicp()->keyword().dpiType();
+	if (basicp()->keyword().isDpiUnsignable() && !basicp()->isSigned()) {
+	    arg = "unsigned "+arg;
+	}
 	if (!forReturn && isOutput()) arg += "*";
    }
    if (named) arg += " "+name();
@@ -856,11 +859,16 @@ void AstSenItem::dump(ostream& str) {
 void AstParseRef::dump(ostream& str) {
    this->AstNode::dump(str);
    str<<" ["<<expect().ascii()<<"]";
-    if (start()) str<<" [START]";
+}
+void AstPackageRef::dump(ostream& str) {
+    this->AstNode::dump(str);
+    if (packagep()) { str<<" pkg="<<(void*)packagep(); }
+    str<<" -> ";
+    if (packagep()) { packagep()->dump(str); }
+    else { str<<"UNLINKED"; }
 }
 void AstDot::dump(ostream& str) {
    this->AstNode::dump(str);
-    if (start()) str<<" [START]";
 }
 void AstActive::dump(ostream& str) {
    this->AstNode::dump(str);
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -1135,10 +1135,17 @@ struct AstVarRef : public AstNodeVarRef {
    ASTNODE_NODE_FUNCS(VarRef, VARREF)
    virtual void dump(ostream& str);
    virtual V3Hash sameHash() const { return V3Hash(V3Hash(varp()->name()),V3Hash(hiername())); }
-    virtual bool same(AstNode* samep) const {
-	if (varScopep()) return varScopep()==samep->castVarRef()->varScopep();
-	else return (hiername()==samep->castVarRef()->hiername()
-		     && varp()->name()==samep->castVarRef()->varp()->name()); }
+    virtual bool same(AstNode* samep) const { return same(samep->castVarRef()); }
+    inline bool same(AstVarRef* samep) const {
+	if (varScopep()) return (varScopep()==samep->varScopep()
+				 && lvalue()==samep->lvalue());
+	else return (hiername()==samep->hiername()
+		     && varp()->name()==samep->varp()->name()
+		     && lvalue()==samep->lvalue()); }
+    inline bool sameNoLvalue(AstVarRef* samep) const {
+	if (varScopep()) return (varScopep()==samep->varScopep());
+	else return (hiername()==samep->hiername()
+		     && varp()->name()==samep->varp()->name()); }
    virtual int instrCount() const { return widthInstrs()*(lvalue()?1:instrCountLd()); }
    virtual string emitVerilog() { V3ERROR_NA; return ""; }  // Implemented specially
    virtual string emitC() { V3ERROR_NA; return ""; }
@@ -1360,15 +1367,16 @@ struct AstParseRef : public AstNode {
 private:
    AstParseRefExp	m_expect;		// Type we think it should resolve to
    string		m_name;
-    bool		m_start;		// Start of parseref stack
 public:
    AstParseRef(FileLine* fl, AstParseRefExp expect, const string& name, AstNode* lhsp, AstNodeFTaskRef* ftaskrefp)
-	:AstNode(fl), m_expect(expect), m_name(name) { setNOp1p(lhsp); setNOp2p(ftaskrefp); m_start=false; }
+	:AstNode(fl), m_expect(expect), m_name(name) { setNOp1p(lhsp); setNOp2p(ftaskrefp); }
    ASTNODE_NODE_FUNCS(ParseRef, PARSEREF)
    virtual void dump(ostream& str);
    virtual string name() const { return m_name; }		// * = Var name
    virtual V3Hash sameHash() const { return V3Hash(V3Hash(m_expect),V3Hash(m_name)); }
-    virtual bool same(AstNode* samep) const { return expect() == samep->castParseRef()->expect() && m_name==samep->castParseRef()->m_name; }
+    virtual bool same(AstNode* samep) const {
+	return (expect() == samep->castParseRef()->expect()
+		&& m_name==samep->castParseRef()->m_name); }
    virtual string emitVerilog() { V3ERROR_NA; return ""; }
    virtual string emitC() { V3ERROR_NA; return ""; }
    virtual void name(const string& name) 	{ m_name = name; }
@@ -1378,26 +1386,44 @@ public:
    AstNode*	lhsp() 		const { return op1p(); }	// op1 = List of statements
    AstNode*	ftaskrefp()	const { return op2p(); }	// op2 = Function/task reference
    void ftaskrefp(AstNodeFTaskRef* nodep) { setNOp2p(nodep); }	// op2 = Function/task reference
-    bool start() const { return m_start; }
-    void start(bool flag) { m_start = flag; }
+};
+
+struct AstPackageRef : public AstNode {
+private:
+    AstPackage*	m_packagep;	// Package hierarchy
+public:
+    AstPackageRef(FileLine* fl, AstPackage* packagep)
+	: AstNode(fl), m_packagep(packagep) {}
+    ASTNODE_NODE_FUNCS(PackageRef, PACKAGEREF)
+    // METHODS
+    virtual bool broken() const { return !m_packagep || !m_packagep->brokeExists(); }
+    virtual void cloneRelink() { if (m_packagep && m_packagep->clonep()) {
+	m_packagep = m_packagep->clonep()->castPackage();
+    }}
+    virtual bool same(AstNode* samep) const {
+	return (m_packagep==samep->castPackageRef()->m_packagep); }
+    virtual V3Hash sameHash() const { return V3Hash(V3Hash(m_packagep)); }
+    virtual void dump(ostream& str=cout);
+    AstPackage* packagep() const { return m_packagep; }
+    void packagep(AstPackage* nodep) { m_packagep=nodep; }
 };

 struct AstDot : public AstNode {
    // A dot separating paths in an AstXRef, AstFuncRef or AstTaskRef
    // These are eliminated in the link stage
-private:
-    bool		m_start;		// Start of parseref stack
 public:
    AstDot(FileLine* fl, AstNode* lhsp, AstNode* rhsp)
-	:AstNode(fl) { setOp1p(lhsp); setOp2p(rhsp); m_start=false; }
+	:AstNode(fl) { setOp1p(lhsp); setOp2p(rhsp); }
    ASTNODE_NODE_FUNCS(Dot, DOT)
+    static AstNode* newIfPkg(FileLine*fl, AstPackage* packagep, AstNode* rhsp) {  // For parser, make only if non-null package
+	if (!packagep) return rhsp;
+	return new AstDot(fl, new AstPackageRef(fl, packagep), rhsp);
+    }
    virtual void dump(ostream& str);
    virtual string emitVerilog() { V3ERROR_NA; return ""; }
    virtual string emitC() { V3ERROR_NA; return ""; }
    AstNode* lhsp() const { return op1p(); }
    AstNode* rhsp() const { return op2p(); }
-    bool start() const { return m_start; }
-    void start(bool flag) { m_start = flag; }
 };

 //######################################################################
@@ -1467,11 +1493,7 @@ public:
    class Initial {};		// for creator type-overload selection
    class Settle {};		// for creator type-overload selection
    class Never {};		// for creator type-overload selection
-    AstSenItem(FileLine* fl, AstEdgeType edgeType, AstNodeVarRef* varrefp)
-	: AstNodeSenItem(fl), m_edgeType(edgeType) {
-	setOp1p(varrefp);
-    }
-    AstSenItem(FileLine* fl, AstEdgeType edgeType, AstParseRef* varrefp)
+    AstSenItem(FileLine* fl, AstEdgeType edgeType, AstNode* varrefp)
 	: AstNodeSenItem(fl), m_edgeType(edgeType) {
 	setOp1p(varrefp);
    }
@@ -1906,7 +1928,7 @@ public:
    bool hidden() const { return m_hidden; }
 };

-struct AstDisplay : public AstNode {
+struct AstDisplay : public AstNodeStmt {
    // Parents: stmtlist
    // Children: file which must be a varref
    // Children: SFORMATF to generate print string
@@ -1914,7 +1936,7 @@ private:
    AstDisplayType	m_displayType;
 public:
    AstDisplay(FileLine* fileline, AstDisplayType dispType, const string& text, AstNode* filep, AstNode* exprsp)
-	: AstNode (fileline) {
+	: AstNodeStmt (fileline) {
 	setOp1p(new AstSFormatF(fileline,text,true,exprsp));
 	setNOp3p(filep);
 	m_displayType = dispType;
@@ -1969,11 +1991,11 @@ struct AstSFormat : public AstNode {
    void 	lhsp(AstNode* nodep) { setOp3p(nodep); }
 };

-struct AstSysIgnore : public AstNode {
+struct AstSysIgnore : public AstNodeStmt {
    // Parents: stmtlist
    // Children: varrefs or exprs
    AstSysIgnore(FileLine* fileline, AstNode* exprsp)
-	: AstNode (fileline) { addNOp1p(exprsp); }
+	: AstNodeStmt (fileline) { addNOp1p(exprsp); }
    ASTNODE_NODE_FUNCS(SysIgnore, SYSIGNORE)
    virtual string verilogKwd() const { return "$ignored"; }
    virtual bool isGateOptimizable() const { return false; }  // Though deleted before opt
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2004-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2004-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2004-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2004-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2008-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2008-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2010-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2010-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2010-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2010-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -415,8 +415,7 @@ private:
 	    // Avoid comparing widthMin's, which results in lost optimization attempts
 	    // If cleanup sameTree to be smarter, this can be restored.
 	    //return node1p->sameTree(node2p);
-	    return node1p->castVarRef()->varp() == node2p->castVarRef()->varp()
-		&& node1p->castVarRef()->lvalue() == node2p->castVarRef()->lvalue();
+	    return node1p->same(node2p);
 	} else {
 	    return false;
 	}
@@ -431,7 +430,7 @@ private:
 	AstVarRef* elsevarp = elsep->lhsp()->castVarRef();
 	if (!ifvarp || !elsevarp) return false;
 	if (ifvarp->isWide()) return false;  // Would need temporaries, so not worth it
-	if (ifvarp->varp() != elsevarp->varp()) return false;
+	if (!ifvarp->sameTree(elsevarp)) return false;
 	return true;
    }
    bool operandIfIf(AstNodeIf* nodep) {
@@ -776,7 +775,7 @@ private:
 	AstSel* sel2p = nextp->lhsp()->castSel(); if (!sel2p) return false;
 	AstVarRef* varref1p = sel1p->fromp()->castVarRef(); if (!varref1p) return false;
 	AstVarRef* varref2p = sel2p->fromp()->castVarRef(); if (!varref2p) return false;
-	if (varref1p->varp() != varref2p->varp()) return false;
+	if (!varref1p->sameTree(varref2p)) return false;
 	AstConst* con1p = sel1p->lsbp()->castConst(); if (!con1p) return false;
 	AstConst* con2p = sel2p->lsbp()->castConst(); if (!con2p) return false;
 	// We need to make sure there's no self-references involved in either
@@ -827,7 +826,7 @@ private:
    bool replaceNodeAssign(AstNodeAssign* nodep) {
 	if (nodep->lhsp()->castVarRef()
 	    && nodep->rhsp()->castVarRef()
-	    && nodep->lhsp()->sameTree(nodep->rhsp())
+	    && nodep->lhsp()->castVarRef()->sameNoLvalue(nodep->rhsp()->castVarRef())
 	    && !nodep->castAssignDly()) {
 	    // X = X.  Quite pointless, though X <= X may override another earlier assignment
 	    if (nodep->castAssignW()) {
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
@@ -6,7 +6,7 @@
 //
 //*************************************************************************
 //
-// Copyright 2003-2012 by Wilson Snyder.  This program is free software; you can
+// Copyright 2003-2013 by Wilson Snyder.  This program is free software; you can
 // redistribute it and/or modify it under the terms of either the GNU
 // Lesser General Public License Version 3 or the Perl Artistic License
 // Version 2.0.
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Wilson Snyder	5eca20f849	Version bump	2013-01-09 22:08:30 -05:00
Wilson Snyder	0a3a582949	Fix array extraction of implicit vars, bug601.	2013-01-09 19:00:12 -05:00
Wilson Snyder	08fec0534d	Fix package import preventing local var, bug599.	2013-01-08 19:06:52 -05:00
Wilson Snyder	5bf92c9d3a	Fix task inlining under case values, bug598. Note this reorders high level operations, so may change loose some optimizations.	2013-01-02 18:35:21 -05:00
Wilson Snyder	a8bbf7231b	Copyright year update.	2013-01-01 09:42:59 -05:00
Wilson Snyder	83c171012d	Test added	2012-12-31 19:06:49 -05:00
Wilson Snyder	229d854607	Fix package resolution of parameters, bug586.	2012-12-31 17:05:13 -05:00
Wilson Snyder	562460606f	Internals: Add V3LinkDot m_ds structure, towards bug586. No functional change.	2012-12-31 14:00:04 -05:00
Wilson Snyder	46f70b1cbb	Fix implying dotted wire names	2012-12-31 13:50:44 -05:00
Wilson Snyder	a547133efe	Internals: Remove VAR_MEM to match Verilog-Perl, towards bug586.	2012-12-31 13:47:34 -05:00
Wilson Snyder	cf445898ce	Internals: Move VARRESET rule to match Verilog-Perl and prevent next change conflict, towards bug586. No functional change.	2012-12-31 13:43:54 -05:00
Wilson Snyder	98f68e46d6	Fix package import of package imports, partial bug592.	2012-12-17 20:26:40 -05:00
Wilson Snyder	27660b271d	Fix package import of non-localparam parameter, bug591.	2012-12-17 19:07:23 -05:00
Wilson Snyder	895e374860	Test for last commit.	2012-12-17 18:41:54 -05:00
Wilson Snyder	4c7f051247	Fix task inlining under , bug589.	2012-12-15 21:41:37 -05:00
Wilson Snyder	e68afa53a8	Fix non-integer vpi_get_value, bug587.	2012-12-06 09:40:16 -05:00
Wilson Snyder	cc47ba2404	Support "unsigned int" DPI import functions, msg966.	2012-12-03 20:43:13 -05:00
Wilson Snyder	2238fa46ed	Show fileline in bison debug.	2012-12-02 18:03:34 -05:00
Wilson Snyder	de8b040e31	bisonpre: Add colon to states for searching	2012-12-02 16:19:31 -05:00
Wilson Snyder	4ffc48d194	devel release	2012-12-02 16:19:26 -05:00
Wilson Snyder	2433848408	Version bump - changelog	2012-12-01 16:38:21 -05:00
Wilson Snyder	e602f7febc	Version bump	2012-12-01 16:15:40 -05:00
Wilson Snyder	f607b32938	Fix crash on dotted references into dead modules, bug583.	2012-11-30 06:57:36 -05:00
Wilson Snyder	c7a088faa5	Fix mis-optimized identical submodule subtract, bug581. Take 2.	2012-11-28 20:18:41 -05:00
Wilson Snyder	30f6c0e105	Fix mis-optimized identical submodule subtract, bug581.	2012-11-28 07:36:47 -05:00
Wilson Snyder	38b9fa7b93	driver: Print message when no Parallel::Forker.	2012-11-21 07:09:29 -05:00
Jeremy Bennett	39a31fc17f	Fix --debug overriding preceding --dump-treei, bug580. Signed-off-by: Wilson Snyder <[email protected]>	2012-11-21 06:55:28 -05:00
Wilson Snyder	899a7df14a	Fix VerilatedSave compile issue on MSVCC, bug577.	2012-11-13 20:36:20 -05:00
Wilson Snyder	7a8c425103	Add +1364-1995ext and similar language options, bug532.	2012-11-13 20:12:23 -05:00
Wilson Snyder	0e8ce59022	Fix svdpi compile issue on MSVCC, bug571.	2012-11-05 10:22:19 -05:00
Wilson Snyder	77ac76a158	devel release	2012-11-03 20:19:31 -04:00