Call Perl in Verilog or SV?

[Shenli]

Hi all,

Sometimes, I want to do some sophisticated text operation in Verilog or
SystemVerilog testbench. And we all know that Verilog and SV is like
C/C++ and not very good at text manipulation.

Is there any method to call Perl routine in Verilog or SV? Pass
argument to Perl routine can be better. BTW, I use Cadence NC tools.

Best regards,
Davy

 

[Shenli]

Hi Ajeetha,

Thanks a lot for the help
I have tried your suggestion and it work OK.

But when I try to pass a string to $system(), the ncvlog said "Using
String without index is not supported in the given context."

The code I write like below,
//---------------------
string perl_cmd_str = "";

$sformat(perl_cmd_str,"perl ./perl/test_opt_file.pl -a %0d -b 4",
data_a);
$display("string is %s\n", perl_cmd_str);

$system (perl_cmd_str);
//---------------------

Any suggestion on how to input a string to $system()?

Best regards,
Shenli

 

[Alex]

You can also communicate with external program using $system, $fdislpay
and $readmemh tasks.

I have such example interconnecting Verilog with simple TCL/TK gui:
http://www.tclforeda.org/tclforeda/sim_gui.htm

Regards,
-Alex