Hello,
I started looking at the ghw waveform generation and I have found the procedure Wave_Put_Hierarchy_1 in grt-waves.adb where all signals are extracted from the instance given in parameter. This instance contains the hierarchy of the design. Before that there is something called hooks that initialize all the waveform generators (vcd, ghw, etc) and call the initialisation procedure of all the waveform generators (Wave_Start for the ghw generator which is on the stacktrace of the call to Wave_Put_Hierarchy_1).
Correct.
My idea was to find the place were the instance is generated before being available to the waveform generators and to create there another instance with only the hierarchy of what needs to be displayed as specified in a text file.
That's what I would do too: create an instance tree from the text file. Or maybe annotate the existing one with a flag, that would be simpler.
The next step is to make the waveform generators use this instance instead of the instance with everything.
Here I would differ: pass both trees to the waveform generator and it will only select the enabled signals. > I believe I have to put this new instance in the Grt.Rtis package. You shouldn't change grt.rtis as it defines the interface with the compiler. Create a new package. > At
grt-main.adb, there is a call to Ghdl_Elaborate which execute some code coming from I don't know where. This code will generate the instance (as I believe) and eventually call procedure Ghdl_Rti_Add_Top in grt-rtis.adb with the generated instance as input parameter. What I would like to know is where is the code that generate the instance with the hierarchy of the design and if you think that my approach is good.
The elaboration code is generated by the compiler. I think you approach is correct. Tristan. _______________________________________________ Ghdl-discuss mailing list Ghdl-discuss@gna.org https://mail.gna.org/listinfo/ghdl-discuss
