Re: [Gtkwave-users] Request: better struct, union and enum viewing support

[<by...@nc...>]

The structs/etc should be doable.  The trick would be importing them as collapsible groups of signals rather than individual structure elements.  As it stands right now, a hierarchy can be imported recursively in the SST however gtkwave currently doesn't do anything except import the individual signals, not preserve any groupings.

The mouseover for structs is a nice idea.  It's an extension of what gtkwave can already do for individual signals.  See View->Show Mouseover.

I think enum names as values might already be possible.  See what Nick Gasson did for VHDL at https://github.com/nickg/nvc/blob/master/src/rt/fst.c
I don't know if that would work for SV or be advisable, but it is one implementation out there.

Note that the bulk of my effort lately has been adding touchscreen support.  

-Tony


---- Sergi Granell <xer...@gm...> wrote: 
> Hi! I've been using Verilator + GTKWave for a few months and currently I'm
> trying to add a FST backend to Verilator so we can make it generate more
> types of declarations (structs, enums, unions, etc).
> 
> It would be nice if GTKWave could show types with other sub-types inside
> (such as structs or unions) as a tree on the Signals panel, just as
> Modelsim does (and also for arrays). See [1] (ex_mem_reg is a struct with
> pc, instr, etc. inside).
> 
> Another very nice feature would be to show a mouseover window/popup with
> the list of all the struct/union members and their values when hovering
> over such types, as seen in [2]. In the image, the instr field of the
> ex_mem_reg struct is an union, that's why a list of different
> decompositions of the value are shown, maybe that's a bit too much for now,
> and this could be implemented in the future.
> 
> And finally, another feature would be to print enum names instead (or also
> with) their raw values, as can be seen in [3].
> 
> [1]: https://i.imgur.com/m1t0WEr.png
> [2]: https://i.imgur.com/zYu1gPr.png
> [3]: https://i.imgur.com/457x6MT.png