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Customizing EDIF 200 In

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You can customize EDIF 200 In output files by creating a SKILL file. A SKILL file contains SKILL procedures that specify changes to object properties in the source design.

This section lists the SKILL procedures you can add to a SKILL file and provides an example of each procedure.

You use the User-Defined SKILL File field on the EDIF 200 In form to specify the name of the SKILL file. Specify the full path if it is not in your run directory.

When you start EDIF 200 In, the software automatically looks for the SKILL file in the run directory or in the directory you specify in the User-Defined SKILL File field. When the SKILL file is found, the software runs the procedures and modifies the property information that is written to the EDIF 200 In output files.

A SKILL procedure returns a value of t when it runs successfully and a value of nil when it fails. When a procedure fails, EDIF 200 In processes the property, if possible, as the property is described in the source EDIF file.

See the Cadence SKILL Language User Guide and the Cadence SKILL Language Reference for information about writing SKILL procedures.

Licensing Requirements

For information on licensing in the Virtuoso Studio Design Environment, see Virtuoso Software Licensing and Configuration Guide.

edifinDisplay

edifinDisplay(
t_edifFormName
)
=> t / nil 

Description

Displays the EDIF 200 In form.

Arguments

Value Returned

Example

edifinDisplay(transEdifInForm)

edifLayerNumMap

edifLayerNumMap(
t_figureGroup
)
=> list( t_layerName t_purposeName ) / nil

Description

Maps the name of figureGroup specified in the input EDIF file to the layer-purpose pairs in the technology file.

The technology file is used when libraries are created by EDIF 200 In. The layers defined by edifLayerNumMap overwrite the default layers. The procedure returns a list that contains two strings that specify the layer and purpose names.

Arguments

Value Returned

Skeletal Example

procedure( edifLayerNumMap( figureGroup "t" )
     prog((flag)
          flag = case( figureGroup
               ("arg1" return( list( "arg2" "arg3" )))
          ) ;end case
          if(!flag then
              return( list( "arg2" "arg3" ))
          );end if
     );prog
);procedure

Example

procedure( edifLayerNumMap(figureGroup "t")
     prog((flag)
          flag = case( figureGroup
               ("DEVICE_BODY_FGP" return( list( "device" "drawing" )))
               ("NET_FGP" return( list( "wire" "drawing" )))
               ("PIN_FGP" return( list( "pin" "drawing" )))
               ("PIN_BODY_FGP" return( list( "pin" "drawing" )))
          );end case
          if(!flag then
               return( list( "device" "drawing" ))
          );end if
     );prog
);procedure

In this example, any figureGroup names that are not among those listed in the case statement are mapped to the layer "device" with the "drawing" purpose. The default layer name for port is "pin". The default layer name for net is "wire". The default layer name for net label is "wire" and the layer-purpose is "label".

edifinMakeRenameString

edifinMakeRenameString(
t_inputString
)
=> l_outputString / nil 

Description

Creates a special string when the string in the EDIF 200 In input file is an illegal name.

The function takes the illegal name string from the EDIF file as an argument and returns a list value that contains the new rename string. You can use nil as the returnString value. In this case, a nil value is returned, which indicates that no new string was provided and the original characters are deleted.

Arguments

Value Returned

Skeletal Example

procedure( edifinMakeRenameString( inputString "t" )
     prog( (returnString)
          case( inputString
               ( "arg1" returnString = "arg2" ))
          return( list( returnString ))
     );prog
);procedure

To map names to a DFII database, you can use any alphanumeric character and any of the following special characters:

If you use an invalid character, EDIF 200 In ignores the name and uses the current EDIF name.

Example

procedure( edifinMakeRenameString( inputString )
     prog( (returnString)
               case( inputString
                    ( "C4" returnString = "C<4>" )
               ); case changes name "C4" into "C<4>"
               return( list( returnString))
     );prog
);procedure

The inputString is the name of the string in the EDIF file to map. The returnString is the name of the DFII database name that is created.

ediFinishStatus

ediFinishStatus(
x_returnCode
)

Description

Provides an exit status number when EDIF 200 In is done.

Arguments

Example

procedure( ediFinishStatus( returnCode "x")
returnCode = 0 if there are no errors and no warnings
returnCode = -1 if there are errors and warnings
returnCode = 1 is there are warnings and no errors
)