This patch adds support for tracing procedural statement execution in vvp.
This is accomplished by adding a new opcode that is inserted before the
code that represents a procedural statement. These opcodes also trigger
a message whenever time advances. By default these opcodes are not added.
To add them, pass the -pfileline=1 flag to the compiler. In the future we
may add support for turning the debug output on and off once the opcodes
have been added with a system task or from the interactive prompt.
It was a poor choice to only add -g2009 for 1800-2009 and ignore the
previous version of System Verilog 1800-2005. This patch adds a
generation for 1800-2005 and also adds `begin_keywords support for
1800-2005. The previous SystemVerilog keywords have been put under
the 1800-2005 generation and the new one from 1800-2009 have also
been added.
Added generation flag -g2009 which enables support for 1800-2009
constructs. Added related support such as "1800-2009" in the
`begin_keywords directive.
Keeps 2005 as the default generation for now.
Removed the -gsytem-verilog flag and folded the 1800-2005 stuff into
1800-2009. The rationale behind this is we have so little of
1800-2005 actually implemented that it does not make sense to
distinguish between 1800-2005 and 1800-2009 SystemVerilog extensions,
so we just count them all as the new 1800-2009 Verilog language.
Try to put all the version stamps into common version_base.h
and version_stamp.h header files. All the source programs then
get their version from these header files.
Also handle the version stamps in the man pages by using the
version_*.h header file contents to edit the version strings
in the man page title bar markers.