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Using Existing Calculator Functions in Custom SKILL Functions for ADE Assembler

baltaci

Hello,

I am currently developing custom calculator functions using SKILL for use within ADE Assembler, and I would like to confirm whether it is possible to reuse existing built-in calculator functions (such as lshif, clip, deriv, etc.) directly within my SKILL code.

For example, if I want to define a custom waveform function that internally uses a left shift or applies a clipping operation, can I call these built-in functions from my SKILL implementation — or are they only available through the ADE calculator GUI?

If this is supported, could you kindly provide a very simple working example of a custom SKILL function that internally uses one of these existing calculator functions (e.g., lshif or clip)?

I would greatly appreciate your help or any official documentation that explains this behavior.

Best regards,

Can

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  • Sure you can. Simple example using clip function to clip from first waveform value to specified end of waveform values:

    procedure( clipTo( signal to )
        (cond
            ((drIsWaveform signal)
                clip(signal firstVal(signal) to)
            )
            ((famIsFamily signal)
                (famMap 'clipTo signal to)
            )
            (numberp(signal)
                signal
            )
            (t
                (error "clipTo: Signal %L is neither a waveform, nor a waveform family.\n" signal)
            )
        )
    )

    You see, the function uses the standard "clip" function, but inserts firstVal(signal) as start of clipping, again "firstVal" being a calculator function.

  • in reply to Volker T
    Volker T said:
    Sure you can. Simple example using clip function to clip from first waveform value to specified end of waveform values

    Thanks for this - you beat me to it!  Joy

    A small (rather pedantic) point - you could just use clip(signal nil to) - if nil is specified as one of the clip limits, it defaults to the first (or last if it's the third argument) point. 

    However, the key point here was to show a simple example, and you did that beautifully - thanks very much!

    Andrew

Reply
  • in reply to Volker T
    Volker T said:
    Sure you can. Simple example using clip function to clip from first waveform value to specified end of waveform values

    Thanks for this - you beat me to it!  Joy

    A small (rather pedantic) point - you could just use clip(signal nil to) - if nil is specified as one of the clip limits, it defaults to the first (or last if it's the third argument) point. 

    However, the key point here was to show a simple example, and you did that beautifully - thanks very much!

    Andrew

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