Plusargs Archives | The Art Of Verification

Plusargs in SystemVerilog:

ByThe Art of Verification March 24, 2021September 15, 2021

Plus args are command-line switches supported by the simulator. Usually, they are application-specific. As per SystemVerilog LRM arguments beginning with the ‘+’ character will be available using the $test$plusargs and $value$plusargs PLI APIs. Plus args are very useful in controlling many things in your environment like controlling your debug mode or setting a value like…

System Verilog

Ifdef Vs plusargs:

ByThe Art of Verification March 24, 2021September 15, 2021

A difference between ifdef and plusarg is that ifdef removes/adds code in compilation itself, while plusarg will compile the entire code suite. While using ifdef, one needs to re-compile in order to change the macro argument. On the other hand, the plusarg code is compiled irrespective of the command line argument