highlightPulldown.tcl

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###############################################################################
# Copyright (c) 2016-2024 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
#       Highlight Pulldown
#   @namespace
#       HighlightPulldown
#   @section
#       Miscellaneous Userware Examples
#   @description
#       Loop over the loaded database and highlight all pulldown devices and
#       nets.
#   @license
#       permit spice
#   @non-interactive
#   @files
#       highlightPulldown.tcl
#   @example
#       demo/spice/ram2k.sp
#   @cmdline
#       -hspice @example[0]
#       -userware @files[0]
#   @tag
#       spice
###############################################################################


# =============================================================================
# Init - Initialize the plugin.
# =============================================================================
#
proc HighlightPulldown:Init {} {
    ##
    # Register HighlightPulldown:Start to be run on database changes,
    # and immediately if there's already is a database.
    #
    gui database runAndRegisterChangedCallback [list HighlightPulldown:Start]
}


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


# =============================================================================
# Start -
# =============================================================================
#
proc HighlightPulldown:Start {db} {
    ##
    # Return if the database is empty.
    #
    if {$db == {}} {
        return
    }

    $db foreach module mod {
        $db foreach inst $mod inst {
            set func [$db primFuncOf $inst]
            if {($func != "PMOS") && ($func != "NMOS")} {
                continue
            }
            set gate [$db getFuncPort $inst -name "gate"]
            if {![$db isConnected $gate]} {
                continue
            }
            set net [$db connectedNet $gate]
            if {![$db flag $net is ground]} {
                continue
            }
            $db hilight $inst set 0

            set drn [$db getFuncPort $inst -name "drain"]
            if {[$db isConnected $drn]} {
                $db hilight [$db connectedNet $drn] set 0
            }

            set src [$db getFuncPort $inst -name "source"]
            if {[$db isConnected $src]} {
                $db hilight [$db connectedNet $src] set 0
            }
        }
    }

    ##
    # Update the GUI.
    #
    gui highlight changed
}


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