cust44/unbundleCells.tcl

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###############################################################################
# Copyright (c) 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.
# =============================================================================
#   @userware
#       Unbundle Liberty Cells
#   @section
#       Miscellaneous Userware Examples
#   @description
#       Remove bundle information from Liberty cells.
#   @files
#       cust44/unbundleCells.tcl
#   @tag
#       zdb
###############################################################################


##
# List of cell name patterns and port name patterns to unbundle.
#
set unbundleConfig {
    "*_SDF2*"
}


##
# The script needs to be invoked with the name of the ZDB binfile as
# an argument.
#
if {$argc != 1} {
    error "Usage: [info nameofexecutable] [info script] FILE.zdb"
}
set binfile [lindex $argv 0]


##
# Open the ZDB binfile.
#
set db [zdb open $binfile]


##
# Create a bitblasted version of the cells that match the patterns in the
# unbundleConfig list.
#
set bitblast_cellList {}
$db foreach cell cell {
    set cellName [$db oid oname $cell]
    foreach cellNamePattern $unbundleConfig {
        if {[string match $cellNamePattern $cellName]} {
            set bitblastCellName "bitblast_$cellName"
            set bitblastCell [$db clone -bitblasted $cell $bitblastCellName]
            $db flag $cell set zombie
            lappend bitblast_cellList $bitblastCell $cellName
            break
        }
    }
}
$db deleteZombies
foreach {cell name} $bitblast_cellList {
    $db oper rename $cell $name
}


##
# Save and close the ZDB binfile.
#
$db save $binfile
$db close