addModulePorts.tcl

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###############################################################################
# Copyright (c) 2017-2024 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.
# =============================================================================
#   @script
#       Add additional ports to already instantiated modules.
###############################################################################


##
# Get the database.
#
set db [gui database get]

##
# Get the module to clone.
#
set moduleName "MODULE_NAME"
set module [$db search module $moduleName]
if {[$db oid isnull $module]} {
    error "Module '$moduleName' not found."
}
$db flag $module set red

##
# Get the top module.
#
set top {}
$db foreach top top break

##
# Get the list of all instances of this module.
#
set instList {}
$db flat foreach instOfCell red $top inst {lappend instList $inst}

##
# Clone the module.
#
set clone [$db clone $module cloneOf$moduleName]

##
# Add new ports to the module.
#
$db reloadModule cloneOf$moduleName
$db load port newPort1 input
$db load port newPort2 output

##
# Update all instances of this module.
#
foreach inst $instList {
    ##
    # Create a new instance of the cloned module.
    #
    set parent [$db oid module $inst]
    $db reloadModule $parent
    set instName [$db oid oname $inst]
    $db flag $inst set zombie
    $db load inst cloneOf$instName cloneOf$moduleName

    ##
    # Apply the connectivity to the cloned inst.
    #
    $db foreach pin $inst pin {
        if {![$db isConnected $pin]} {
            continue
        }
        set net [$db connectedNet $pin]
        set clonePin [$db search pin $inst [$db oid pname $pin]]
        $db load net [$db oid oname $net] \
            -pin cloneOf$instName [$db oid pname $pin]
    }
    set parent [$db search module $parent]
    set newInst [$db search inst $parent cloneOf$instName]
    $db oper rename $newInst [$db oid oname $inst]
}

$db oper rename $clone $moduleName

##
# Remove old module and instances.
#
$db flag $module set zombie
$db deleteZombies