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creating compile time define switch in .scs file (Read 5575 times)

AMS_ei Community Member Offline Posts: 67	creating compile time define switch in .scs file Apr 17^th, 2017, 11:50pm Hi, I am planning to have a switch in order to have control in specific netlist or in .scs file. Is there any way to apply a compile time define switch in .scs file? (something like `ifdef in system verilog/verilog ams)? Thank you. Kind regards
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Andrew Beckett

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Re: creating compile time define switch in .scs file
Reply #1 - Apr 21^st, 2017, 1:32pm

Yes. Use the cpp (C pre-processor) directives #ifdef, #ifndef etc, and then run "spectre -Dvar" or "spectre -Dvar=val" to define them on the command line. You can also just run "spectre -E" to invoke with the C preprocessor first, which happens if you pass -D too. More on cpp can be found in "man cpp".

Andrew

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AMS_ei Community Member Offline Posts: 67	Re: creating compile time define switch in .scs file Reply #2 - Apr 25^th, 2017, 5:46am Hi Andrew, Thank you for your valuable inputs. Could you please tell me how can I pass it through "irun"? Thank you. Kind regards.
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Andrew Beckett Senior Fellow Offline Life, don't talk to me about Life... Posts: 1742 Bracknell, UK	Re: creating compile time define switch in .scs file Reply #3 - May 28^th, 2017, 2:35pm Add this to the irun command line: -spectre_args '-E -Dvar' or: -spectre_args '-E -Dvar=val' Note that you have to pass the -E, because otherwise I think the -Dvar just gets passed to irun as a macro definition for the Verilog `ifdef etc. Regards, Andrew
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AMS_ei Community Member Offline Posts: 67	Re: creating compile time define switch in .scs file Reply #4 - May 30^th, 2017, 4:45am Hi Andrew, Thank you for your valuable inputs. This seems to be not working if I insert amsd{} block in the amscf.scs file. Is there any workaround for that? Thank you. Kind regards.
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Andrew Beckett Senior Fellow Offline Life, don't talk to me about Life... Posts: 1742 Bracknell, UK	Re: creating compile time define switch in .scs file Reply #5 - Jun 3^rd, 2017, 12:37am Something seems to be odd if you use #ifdef around or within the amsd block. My quick experiments seem to show that #ifndef works, but #ifdef doesn't. Odd... I suggest that you contact Cadence Customer Support at http://support.cadence.com Regards, Andrew
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