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SKILL examples to modify Virtuoso label text on schematic & layout

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So others benefit...

Here is a simple SKILL code example for modifying label text in Virtuoso schematic or layout based on a thread from comp.cad.cadence thanks to our good friend Bernd Fischer...

procedure(MyReplaceLabels( libName viewName "tt" )
        let( ( d_libId d_cvId l_cellList l_labelList )

d_libId = ddGetObj( libName )
l_cellList = setof(
                d_cell d_libId~>cells
                member( viewName d_cell~>views~>name )
                )

foreach( d_cell l_cellList

     d_cvId = dbOpenCellViewByType( libName d_cell~>name viewName nil "a" )        

     l_labelList = setof( d_shape d_cvId~>shapes  d_shape~>objType == "label" )

     foreach( d_label l_labelList
        case( d_label~>theLabel
                        ( "VDD"
                                d_label~>theLabel = "vdd!"

                        )
                        ( "VSS"
                                d_label~>theLabel = "gnd!"
                        )
                ) ;; close case
     )

   dbSave( d_cvId )
   dbClose( d_cvId )
)

)

)
;; End of MyReplaceLabels.il


Originally posted in cdnusers.org by John
Parents

  • So others benefit...

    Here is another simple SKILL code example for modifying label text in Virtuoso based on a recent thread from comp.cad.cadence asking...

    > I have a library with a few hundred cells, half of which have layouts
    > that contain multiple labels whose text I would like to change. 
    > In each layout, there is one label with text 'VDD' that I would like to
    > change to 'vdd!', and there is another label with text 'VSS' that I
    > would like to change to 'gnd!'.  The schematics are already correct.
    > Is there a way to do this with SKILL code? 

    /*
    TrChangeStrings.il

    This SKILL sample will search all the labels in your layout view,
    and judge whether the labels contain the old-string you want
    to replace, and then rename them to the desired new-string.

    TrChangeStrings( "oldString" "newString" )
    -OR-
    TrChangeStrings( "oldString" "newString" t );==> test mode won't save
    changes

    Ex. TrChangeStrings( "VDD" "vdd!" )
    Ex. TrChangeStrings( "VDD" "vdd!" t )

    The number of labels changed per cell will be reported along with
    the total number of labels changed.
    */

    procedure( TrChangeStrings( oldstring newstring @optional (test nil) )
      let( ( cv cnt (totalcnt 0) (view "layout") )
             cv=geGetEditCellView()
        cnt=0
        when( test printf("*** TEST MODE *** changes not saved\n") )
            foreach( shape cv~>shapes
              ;when( shape~>objType == "label" && shape~>theLabel ==
    oldstring
              when( shape~>objType == "label" && rexMatchp(oldstring
    shape~>theLabel
    )
                ;shape~>theLabel = newstring
                rexCompile(oldstring)
                shape~>theLabel = rexReplace(shape~>theLabel newstring 0)
                cnt++
              ) ; when label
            ) ; foreach shape
            unless( test dbSave( cv ))
            printf("%s %s : %d labels changed\n" cv~>cellName view cnt)
            totalcnt = totalcnt + cnt
        printf("** Total labels changed : %d\n" totalcnt)
        when( test printf("*** TEST MODE *** changes not saved\n") )
      ) ; let
    ) ;
    ;; End of TrChangeLabels.il


    Originally posted in cdnusers.org by John
Reply

  • So others benefit...

    Here is another simple SKILL code example for modifying label text in Virtuoso based on a recent thread from comp.cad.cadence asking...

    > I have a library with a few hundred cells, half of which have layouts
    > that contain multiple labels whose text I would like to change. 
    > In each layout, there is one label with text 'VDD' that I would like to
    > change to 'vdd!', and there is another label with text 'VSS' that I
    > would like to change to 'gnd!'.  The schematics are already correct.
    > Is there a way to do this with SKILL code? 

    /*
    TrChangeStrings.il

    This SKILL sample will search all the labels in your layout view,
    and judge whether the labels contain the old-string you want
    to replace, and then rename them to the desired new-string.

    TrChangeStrings( "oldString" "newString" )
    -OR-
    TrChangeStrings( "oldString" "newString" t );==> test mode won't save
    changes

    Ex. TrChangeStrings( "VDD" "vdd!" )
    Ex. TrChangeStrings( "VDD" "vdd!" t )

    The number of labels changed per cell will be reported along with
    the total number of labels changed.
    */

    procedure( TrChangeStrings( oldstring newstring @optional (test nil) )
      let( ( cv cnt (totalcnt 0) (view "layout") )
             cv=geGetEditCellView()
        cnt=0
        when( test printf("*** TEST MODE *** changes not saved\n") )
            foreach( shape cv~>shapes
              ;when( shape~>objType == "label" && shape~>theLabel ==
    oldstring
              when( shape~>objType == "label" && rexMatchp(oldstring
    shape~>theLabel
    )
                ;shape~>theLabel = newstring
                rexCompile(oldstring)
                shape~>theLabel = rexReplace(shape~>theLabel newstring 0)
                cnt++
              ) ; when label
            ) ; foreach shape
            unless( test dbSave( cv ))
            printf("%s %s : %d labels changed\n" cv~>cellName view cnt)
            totalcnt = totalcnt + cnt
        printf("** Total labels changed : %d\n" totalcnt)
        when( test printf("*** TEST MODE *** changes not saved\n") )
      ) ; let
    ) ;
    ;; End of TrChangeLabels.il


    Originally posted in cdnusers.org by John
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