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197 | ###############################################################################
# Copyright (c) 2011-2024 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
# Find Paths to IP Blocks
# @section
# Analyze the Loaded Database
# @description
# Find paths from all nets of a given block to all IP blocks (flag
# undefined).
# @files
# cust13/pathToIP.tcl
# @tag
# zdb gui
###############################################################################
# -----------------------------------------------------------------------------
# _pathToIPFromBlock - Run the path extraction.
# -----------------------------------------------------------------------------
#
proc _pathToIPFromBlock {db dir blockName ip} {
##
# Return if the database is empty.
#
if {$db == {}} {
return
}
##
# Pre-process the database and find all empty modules and flag them as
# a target for the path extraction.
#
$db foreach module module {
$db flag $module clear target
set empty 1
$db foreach inst $module inst {set empty 0; break}
if { $empty && $ip} {$db flag $module set target}
if {!$empty && !$ip} {$db flag $module set target}
}
##
# Search for a module with the given blockName.
#
set module [$db search module $blockName]
if {[$db oid isnull $module]} {
error "Module $blockName not found."
}
if {[catch {set toid [$db oid searchTreeBased $module]} msg]} {
error "Module $blockName not instantiated."
}
set module $toid
##
# Create the path extraction command.
#
set cmd [list $db cone -paths -$dir -unknown2IO]
if {$ip} {
lappend cmd -targetFlaggedCell undefined
}
lappend cmd -targetFlaggedCell target
##
# Loop over all nets in the given block and call the path extraction
# command for each net.
#
set res {}
$db foreach net $module net {
foreach path [eval $cmd {$net}] {lappend res [lrange $path 1 end]}
}
return $res
}
# -----------------------------------------------------------------------------
# _reportDriver - Report the driver IP blocks.
# -----------------------------------------------------------------------------
#
proc _reportDriver {blockName outfile db ip} {
if {$db == {}} {
return
}
zprogress begin
zprogress push "Search Driver" 1.0
set driver [_pathToIPFromBlock $db in $blockName $ip]
if {[zprogress pop]} {
return
}
zprogress push "Write to file." 1.0
_writeFile $db $outfile $driver
zprogress pop
zprogress end
}
# -----------------------------------------------------------------------------
# _reportDriven - Report the driven IP blocks.
# -----------------------------------------------------------------------------
#
proc _reportDriven {blockName outfile db ip} {
if {$db == {}} {
return
}
zprogress begin
zprogress push "Search Driven" 0.8
set driven [_pathToIPFromBlock $db out $blockName $ip]
if {[zprogress pop]} {
return
}
zprogress push "Write to file." 1.0
_writeFile $db $outfile $driven
zprogress pop
zprogress end
}
# -----------------------------------------------------------------------------
# _writeFile - Write the result the an output file.
# -----------------------------------------------------------------------------
#
proc _writeFile {db fname resList} {
set out [open $fname "w"]
set i 0
set c [llength $resList]
set start {}
foreach p $resList {
if {([incr i] % 20) == 0} {
if {[zprogress update "" $i $c]} {
break
}
}
set from [lindex $p 0]
set to [lindex $p end]
if {$from == $to} {
continue
}
set cn [$db connectedNet $from]
puts $out "Source: $cn"
set net {}
foreach element $p {
set connectedNet [$db connectedNet $element]
if {$net == $connectedNet} {
continue
}
puts $out "\tThrough: $connectedNet"
set net $connectedNet
}
puts $out "\tTo: [$db oid cname $to] ([$db oid pname $to])"
}
close $out
}
# -----------------------------------------------------------------------------
# _createReports - Call procedures to create all reports.
# -----------------------------------------------------------------------------
#
proc _createReports {blockName db} {
_reportDriver $blockName driverIP.txt $db true
_reportDriven $blockName drivenIP.txt $db true
_reportDriver $blockName driverInst.txt $db false
_reportDriven $blockName drivenInst.txt $db false
}
##
# Get command line args of this Userware.
#
if {$argc != 1} {
error "Wrong # of args."
}
set blockName [lindex $argv 0]
##
# Use gui database runOrRegisterChangedCallback to immediately run
# _createReports if we have a database, or otherwise register the proc to be
# executed after the database is available.
#
gui database runOrRegisterChangedCallback [list _createReports $blockName]
|