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BrianHG's avatar
BrianHG
Icon for Occasional Contributor rankOccasional Contributor
5 years ago
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Is there a way to change ModelSim's default radix in code or command line?

Hello,
Without editing the modelsim.ini's line 'DefaultRadix = symbolic', is there a way I can specify a change to the default within my ***_tb.sv source file?

How about in a .do script file?

Can I specify the radix on the 'vsim' or 'vlog' command line settings?

I already know when I manually 'add wave ', I can '-radix unsigned', however, I want to change the system default so that all the other window's contents, like the 'Objects' window, change their default 'Value' reading column to my preferred radix.

Thanks again for the help,
Brian.

  • BrianHG's avatar
    BrianHG
    5 years ago

    Thank you ShyanYewT,

    Unfortunately, the default does not carry when I move source files to a new folder and start a new Modelsim. I would have liked to have found a way to set it in my source testbench or .do file which contains the:

    vsim -t 1ps -L altera_ver -L lpm_ver .....

    However, going to the vsim in the command reference manual, I found:

    vsim -default_radix unsigned -t 1ps -L altera_ver -L lpm_ver .....

    for the vsim command. This is what I was looking for and I wonder why my .pdf viewer never did show this text of 'default_radix' when I did a search for 'radix'. For some reason, maybe the underscore, the - in front, or that it was a blue link, all the text search showed was a number of other 'radix' references throughout the documentation.

3 Replies

  • RichardT_altera's avatar
    RichardT_altera
    Icon for Super Contributor rankSuper Contributor
    5 years ago

    With the Modelsim GUI opened, you might change the radix following the steps below:

    1. Select Simulate > Runtime options...
    2. In Default Radix box, select your desired radix.


    Hope it helps.

    • BrianHG's avatar
      BrianHG
      Icon for Occasional Contributor rankOccasional Contributor
      5 years ago

      Thank you ShyanYewT,

      Unfortunately, the default does not carry when I move source files to a new folder and start a new Modelsim. I would have liked to have found a way to set it in my source testbench or .do file which contains the:

      vsim -t 1ps -L altera_ver -L lpm_ver .....

      However, going to the vsim in the command reference manual, I found:

      vsim -default_radix unsigned -t 1ps -L altera_ver -L lpm_ver .....

      for the vsim command. This is what I was looking for and I wonder why my .pdf viewer never did show this text of 'default_radix' when I did a search for 'radix'. For some reason, maybe the underscore, the - in front, or that it was a blue link, all the text search showed was a number of other 'radix' references throughout the documentation.

      • RichardT_altera's avatar
        RichardT_altera
        Icon for Super Contributor rankSuper Contributor
        5 years ago

        I’m glad that you found the answer for your question, I will now transition this thread to community support. If you have a new question, feel free to open a new thread to get the support from Intel experts. Otherwise, the community users will continue to help you on this thread. Thank you.