Added the ability to coalesce set/reset values to different parts
of the same vector. Also added a check that all bits of the vector
are assigned a value.
Enabled coalescence of asynchronous set/reset part-vectors
When performing constant propagation, we need to take into account
values driven through a tran object. For now, be pessimistic, and
assume that all tran objects connect to a variable driver.
When conditional ports are blending (by allowing NetPartSelects be
connected together to the outputs) make sure there isn't an accidental
overlap of drivers that invalidates the process.
When netlists get very large, the Nexus::connect() method tickles
the O(N) performance and elaboration gets very slow. Rework the
connect method to be O(C), for a drastic performance boost for
large designs.
Remove the #ident and $Log$ strings from all the header files and
almost all of the C/C++ source files. I think it is better to get
this done all at once, then to wait for each of the files to be
touched and edited in unrelated patches.
Continue cleaning up shadowed variables, flagged by turning on -Wshadow.
No intended change in functionality. Patch looks right, and is tested
to compile and run on my machine. No regressions in test suite.
The NetBranch object is connected, but not like an object, so the
NetPins object base class is factored out from NetObj to handle the
connectivity, and the NetBranch class uses the NetPins to connect a
branch.
Also, account for the fact that nets with a discipline are by default
real-valued.
instead of link into the netlist. This is faster
and uses less space. Make the NetAssignNB carry
the delays instead of the NetAssign_ lval objects.
Change the vvp code generator to support multiple
l-values, i.e. concatenations of part selects.
pform and netlist for gates.
Change vvm constants to use the driver_t to drive
a constant value. This works better if there are
multiple drivers on a signal.
Martin Whitaker
Cary R
Johann Klammer
Stephen Williams
Arun Persaud
Larry Doolittle
steve