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  3. Defining Procedures from within a Pcell

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Defining Procedures from within a Pcell

ahamlett
ahamlett over 16 years ago

With this code inside a pcell and myFunction used from within that pcell, no errors arise so is this a good practice?

I'm wondering if this might cause some errors down the line when a tool is reading the cadence database.

if(!procedurep(getd(stringToSymbol("myFunction"))) then
    procedure( myFunction(name)
        println(name stdout)
    )
)

 

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  • Andrew Beckett
    Andrew Beckett over 16 years ago

    You could use:

      unless(isCallable('MyFunction)

        procedure(...)

      )

    The main issue with having all the functions defined this way within the pcell code is that the code vector could get too large, and you might hit the limit of code size. 

    The usual way to define auxilliary functions used within pcell code is to put them in (or load them from) the libInit.il of the library containing the pcell.

    Regards,

    Andrew.

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  • Andrew Beckett
    Andrew Beckett over 16 years ago

    You could use:

      unless(isCallable('MyFunction)

        procedure(...)

      )

    The main issue with having all the functions defined this way within the pcell code is that the code vector could get too large, and you might hit the limit of code size. 

    The usual way to define auxilliary functions used within pcell code is to put them in (or load them from) the libInit.il of the library containing the pcell.

    Regards,

    Andrew.

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