cust13/traceThrough.tcl

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###############################################################################
# Copyright (c) 2010-2024 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
#       Trace Through Cells
#   @section
#       Miscellaneous Userware Examples
#   @description
#       Flag cells as feed through cells. A double click in the Cone window
#       will go through these cells.
#   @files
#       cust13/traceThrough.tcl
#   @example
#       demo/verilog/bus85.f
#   @cmdline
#       -verilog
#       -F @example[0]
#       -userware @files[0]
#   @tag
#       zdb gui
###############################################################################


# =============================================================================
# Specify a list of cells that should be traced through and specify a list of
# patterns to match multiple cells.
# =============================================================================
#
foreach cell {
    BUF
    INV
    ftres
    alias
} {
    set _config(throughCells:$cell) 1
}

set _config(throughPattern) {
    "*buf*"
    "*inv*"
}


# -----------------------------------------------------------------------------
# _setup - Setup the database.
# -----------------------------------------------------------------------------
#
proc _setup {db} {
    global _config

    ##
    # Return if the database is empty.
    #
    if {$db == {}} {
        return
    }

    ##
    # Loop over all cells and flag all cells listed in
    # _config(throughCells:<cellName>) and matching a pattern in
    # _config(throughPattern) as feedthrough.
    #
    $db foreach cell cell {
        set cellname [$db oid oname $cell]
        if {[info exists _config(throughCells:$cellname)]} {
            $db flag $cell set feedthru
            continue
        }
        foreach throughPattern $_config(throughPattern) {
            if {[string match -nocase $throughPattern $cellname]} {
                $db flag $cell set feedthru
                break
            }
        }
    }
}


##
# Use gui database runOrRegisterChangedCallback to immediately run _setup
# if we have a database, or otherwise register the proc to be executed after
# the database is available.
#
gui database runOrRegisterChangedCallback _setup