Feature request: Support verilog language

[kiteloopdesign]

trafficstars

It would be awesome to add support for verilog language!

Thanks!

[wellle]

Can you share an example file and what you would expect as a context? Thanks!

[kiteloopdesign]

Sure! Thanks for offering!

So, verilog (or its more recent version, aka SystemVerilog) is a huge language! Doing something that covers even 50% of the language would be not an straightforward task! For this reason I guess what I'd like to get here is something that covers a painful use case for me: navigating HUGE verilog netlist files. I make a distinction here with using netlist word, as this is a special flavour of verilog (called structural verilog), which does look a bit different from the higher-level behavioral verilog.

Example of structural verilog here.

https://github.com/chenfengrugao/nlviewer/blob/master/test.v

Example of behavioral verilog here.

https://github.com/lowRISC/style-guides/blob/master/VerilogCodingStyle.md#basic-template

As you can see they look quite different. The behavioral looks a lot like many other C or Java based languages. Its main difference is that it does not use braces but begin/else to separate code that go into conditions. Maybe adding suport for this would be easy for you?

However, as I said earlier, support for behavioral verilog is not the main thing I am looking for. A painful use case for me is having to navigate HUGE (~GB) files of structrural verilog. Imagine, like in the example that you have a

module xor4 (a , b , c);
input  [3:0] a ;
input  [3:0] b ;
output  [3:0] c ;

module_name instance_name (
.A2 ( b[0] ), // these are "port connections", I am declaring a huge instance of module_name called instance_name
.A1 ( a[0] ), 
.Y ( c[0] ) 
...
... // <--cursor is here
// 200 lines of ports
) ;
XOR U1 (.A2 ( b[1] ) , .A1 ( a[1] ) , .Y ( c[1] ) ) ;
XOR U2 (.A2 ( b[2] ) , .A1 ( a[2] ) , .Y ( c[2] ) ) ;
XOR U3 (.A2 ( b[3] ) , .A1 ( a[3] ) , .Y ( c[3] ) ) ;
endmodule

othermodule
...
otherendmodule

If the cursor was to be there on the code , I would expect to see that I am on vim

xor4.instance_name

I think this should be easy enough?

thanks, please let me know any question you might have !