showMultiplier.tcl

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###############################################################################
# Copyright (c) 2007-2024 by Altair Engineering, Inc.
# All rights reserved.
#
# Altair Engineering, Inc. makes this software available as part of the Vision
# tool platform.  As long as you are a licensee of the Vision tool platform
# you may make copies of the software and modify it to be used within the
# Vision tool platform, but you must include all of this notice on any copy.
# Redistribution without written permission to any third party, with or
# without modification, is not permitted.
# Altair Engineering, Inc. does not warrant that this software is error free
# or fit for any purpose.  Altair Engineering, Inc. disclaims any liability for
# all claims, expenses, losses, damages and costs any user may incur as a
# result of using, copying or modifying the software.
# =============================================================================
#   @plugin
#       Show Multiplier
#   @namespace
#       ShowMultiplier
#   @section
#       Miscellaneous Userware Examples
#   @description
#       Add a new display attribute to show the multiplier value as an instance
#       attribute in the schematic view.
#   @configuration
#   @license
#       permit spice
#   @non-interactive
#   @files
#       showMultiplier.tcl
#   @example
#       demo/spice/aquarius.sp
#   @cmdline
#       -hspice @example[0]
#       -userware @files[0]
#   @tag
#       gui spice
###############################################################################


# =============================================================================
# Init - Initialize the plugin.
# =============================================================================
#
proc ShowMultiplier:Init {} {
    ##
    # Add the option to configure the name of the multiplier.
    #
    gui plugin addConfig ShowMultiplier mName "M" text \
        "Name of the multiplier attribute"

    ##
    # Register ShowMultiplier:Start to be run on database changes,
    # and immediately if there's already is a database.
    #
    gui database runAndRegisterChangedCallback [list ShowMultiplier:Start]
}


# =============================================================================
# Finit - Finalize the plugin.
# =============================================================================
#
proc ShowMultiplier:Finit {} {
    ##
    # Remove the callback registration.
    #
    gui database removeChangedCallback "ShowMultiplier:Start"
}


# =============================================================================
# Start - Add a meta attribute to the database to display the multiplier, e.g.:
#         M1234 a b c VSS N W=20u L=2u M=47
# =============================================================================
#
proc ShowMultiplier:Start {db} {
    ##
    # Return if the database is empty.
    #
    if {$db == {}} {
        return
    }

    ##
    # Get the multiplier name.
    #
    set mName [gui plugin getConfigValue ShowMultiplier mName]

    ##
    # Loop over all primitives and skip all functions except NMOS and PMOS.
    #
    $db foreach primitive prim {
        set func [$db primFuncOf $prim]
        if {$func != "PMOS" && $func != "NMOS"} {
            continue
        }

        ##
        # Get the old value of the @nlv attribute and append M=%M.
        #
        set oldAttr [$db attr $prim getValue @nlv]
        $db attr $prim set "@nlv=$oldAttr\n$mName=%$mName"
    }

    ##
    # Inform the GUI that the attributes has changed.
    #
    gui attribute changed
}


# =============================================================================
# Call the initialization procedure.
# =============================================================================
#
ShowMultiplier:Init