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341 | ###############################################################################
# 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.
# =============================================================================
# @script
# Load Device List
###############################################################################
# -----------------------------------------------------------------------------
# _cmpLst - Compare two given lists by its length (shortest first).
# -----------------------------------------------------------------------------
#
proc _cmpLst {a b} {
return [expr {[llength $a] - [llength $b]}]
}
# -----------------------------------------------------------------------------
# read_list_file - Read the device info side file and store all found entries
# in the given hash table.
# -----------------------------------------------------------------------------
#
proc read_list_file {fname resultName} {
upvar 1 $resultName result
##
# Initialize the result table.
#
array set result {
deviceList {}
beginNet {}
endNet {}
pinInfo {}
}
##
# Open the voltage file for reading.
#
set in [open $fname rb]
##
# Read the given file line by line.
#
while {![eof $in]} {
##
# Get the next line.
#
set line [string trim [gets $in]]
##
# Skip empty lines.
#
if {$line == ""} {
continue
}
##
# Check for .PININFO comment.
#
if {[string equal -nocase -length 9 "*.PININFO" $line]} {
lappend result(pinInfo) [lindex $line end]
continue
}
##
# Skip all other comments.
#
if {[string index $line 0] == "*"} {
continue
}
##
# Check for 'Path #'.
#
if {[string match -nocase "Path #*" $line]} {
continue
}
##
# Check for 'begin_net: '.
#
if {[string match -nocase "begin_net: *" $line]} {
set result(beginNet) [lindex $line end]
continue
}
##
# Check for 'end_net: '.
#
if {[string match -nocase "end_net: *" $line]} {
set result(endNet) [lindex $line end]
continue
}
##
# All remaining lines are device entries.
#
lappend result(deviceList) $line
}
##
# Close the input file.
#
close $in
}
# -----------------------------------------------------------------------------
# _drawConeByList - Read the device info side file and store all found
# device and net names in a hash table.
# -----------------------------------------------------------------------------
#
proc _drawConeByList {{fname ""} {db {}}} {
##
# First check if a database is available (netlist is loaded).
#
set db [gui database get]
if {$db == {}} {
zmessage print ERR "No database loaded."
return
}
##
# If the given file name is empty then show an open file dialog to browse
# for an input file.
#
if {$fname == ""} {
set ftype {{"Device List File" ".txt"}}
set fname [gui window fileDialog openFile \
"Open a Device List File" $ftype]
}
##
# Return from this procedure if the file name is still empty.
#
if {$fname == ""} {
return
}
##
# Read the give side file.
#
array set result {}
read_list_file $fname result
##
# Initialize the OID list.
#
set oidList {}
##
# Get the top level design.
#
set top [$db get_top_design]
##
# Loop over all device entries.
#
foreach deviceInfo $result(deviceList) {
##
# The device instance is the first item in the deviceInfo line.
#
set device [lindex $deviceInfo 0]
##
# Convert the hierarchical instance name to an OID.
#
set inst [$db oid createFromString inst $top $device "." -icase]
##
# Append the instance OID to the OID list.
#
lappend oidList $inst
##
# Get the index of the last entry in the device Info line.
#
set endIdx [expr {[llength $deviceInfo] - 1}]
##
# Since the referenced cell name (last entry in the device Info) is
# optional check if a cell name for this instance is present.
#
if {[lindex $deviceInfo $endIdx] == [$db oid oname [$db down $inst]]} {
incr endIdx -1
}
##
# Simultaneously loop over all device pins and connected nets.
#
set pinList {}
$db foreach pin $inst pin {lappend pinList $pin}
foreach hierNetName [lrange $deviceInfo 1 $endIdx] pin $pinList {
##
# Skip all hidden pins, e.g. transistor bulk pins.
#
if {[$db flag $pin is hide]} {
continue
}
##
# Convert the hierarchical net name into an OID.
#
set net [$db oid createFromString net $top $hierNetName "." -icase]
##
# If this pin connects to a power/ground net then add the pin to
# the OID list.
#
if {[$db isPgNet $net]} {
lappend oidList $pin
} else {
##
# Brute-force: find the shortest path from pin to net.
#
set resList {}
set res [$db cone -in -shortestPath -targetObj $pin $net]
if {[llength $res] > 0} {
lappend resList $res
}
set res [$db cone -out -shortestPath -targetObj $pin $net]
if {[llength $res] > 0} {
lappend resList $res
}
set res [$db cone -in -shortestPath -targetObj $net $pin]
if {[llength $res] > 0} {
lappend resList $res
}
set res [$db cone -out -shortestPath -targetObj $net $pin]
if {[llength $res] > 0} {
lappend resList $res
}
set res [lindex [lsort -command _cmpLst $resList] 0]
foreach oid $res {
lappend oidList $oid
}
}
}
}
##
# If a begin net is set then add the text attribute 'BEGIN_NET'.
#
if {$result(beginNet) != {}} {
set net [$db oid createFromString net $top $result(beginNet) "." -icase]
$db flatattr $net set "value=BEGIN_NET"
}
##
# If an end net is set then add the text attribute 'END_NET'.
#
if {$result(endNet) != {}} {
set net [$db oid createFromString net $top $result(endNet) "." -icase]
$db flatattr $net set "value=END_NET"
}
##
# Load the result into the Cone window.
#
gui window show Cone
gui cone load $oidList
}
# -----------------------------------------------------------------------------
# _save_cone_as_image - Save the contents of the Cone window as a PNG image.
# -----------------------------------------------------------------------------
#
proc _save_cone_as_image {{fname ""}} {
##
# If the given output file name is empty then show a save file dialog to
# browse for an output file.
#
if {$fname == ""} {
set ftype {{"PNG Image" ".png"}}
set fname [gui window fileDialog saveFile "Save an Image File" $ftype]
}
if {$fname == ""} {
return
}
gui export photo $fname Cone "3840x2160" png
}
# -----------------------------------------------------------------------------
# _save_cone_as_spice - Save the contents of the Cone window as a Spice
# netlist.
# -----------------------------------------------------------------------------
#
proc _save_cone_as_spice {{fname ""}} {
##
# If the given output file name is empty then show a save file dialog to
# browse for an output file.
#
if {$fname == ""} {
set ftype {{"Spice netlist" {".sp" ".spc" ".spi"}}}
set fname [gui window fileDialog saveFile "Save a Spice Netlist" $ftype]
}
if {$fname == ""} {
return
}
gui cone saveAs Spice $fname
}
# =============================================================================
# Add a new main menu entry 'Debug' to access the procedure of this script.
# =============================================================================
#
gui menu command {"Userware" "Draw Cone by Device List"} {_drawConeByList}
gui menu command {"Userware" "Save Cone as Image"} {_save_cone_as_image}
gui menu command {"Userware" "Save Cone as Spice"} {_save_cone_as_spice}
# =============================================================================
# If this script was loaded using -userware2 then the given argument specifies
# the name of the device list file. In this case register the '_drawConeByList'
# procedure to be executed as soon as the database is available (netlist read).
# =============================================================================
#
if {$argc == 1} {
gui database registerChangedCallback "_drawConeByList [lindex $argv 0]"
}
|