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265 | ###############################################################################
# Copyright (c) 2005-2024 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.
# =============================================================================
# @plugin
# Find Heavy Cs and Rs (Tree-Based)
# @namespace
# HeavyCRt
# @section
# Analyze the Loaded Database
# @description
# The heavyCR procedure loops over all C or R and checks each value
# (capacitance or resistance) and collects the 10 objects with the
# biggest values. The 10 biggest Cs and 10 biggest Rs are stored in the
# Mem window. heavyCRt is the tree-based version.
# @non-interactive
# @files
# heavyCRt.tcl
# @example
# demo/spice/amd2901.sp
# demo/spice/csim90/chip2.sp
# demo/spice/gl85.sp
# @cmdline
# -hspice @example[0]
# -userware @files[0]
# @tag
# spice parasitic dspf spf
###############################################################################
# =============================================================================
# Init - Initialize the plugin.
# =============================================================================
#
proc HeavyCRt:Init {} {
gui database runOrRegisterChangedCallback HeavyCRt:Run
}
# =============================================================================
# Finit - Finalize the plugin.
# =============================================================================
#
proc HeavyCRt:Finit {} {
gui database removeChangedCallback HeavyCRt:Run
}
# =============================================================================
# Run - The heavyCRt procedure traverses the design hierarchy tree for all
# Cs and Rs and checks each value (capacitance or resistance) and
# collects the 10 objects with the biggest values. The 10 biggest
# Cs and 10 biggest Rs are stored into the Mem window.
# =============================================================================
#
proc HeavyCRt:Run {db} {
global CAPList RESList
##
# Return if the database is empty.
#
if {$db == {}} {
return
}
set CAPList {} ;# top-ten list
set RESList {} ;# top-ten list
##
# loop over top modules
#
$db foreach top mod {
HeavyCRt:traverseCRt $db $mod
}
##
# clear the "yellow" flag (used in traverseCRt)
#
$db foreach module mod {
$db flag $mod clear yellow
}
##
# Clear and activate the Mem Window
#
gui mem clear
gui window show Schem
gui window show Mem
##
# Get the top ten list of heavy Cs and Rs.
#
set topTenC [HeavyCRt:getTopTenCR $CAPList]
set topTenR [HeavyCRt:getTopTenCR $RESList]
##
# Store the result into the Mem Window.
#
set res $topTenC
if {[llength $res] > 0} {
lappend res "------"
}
lappend res {*}$topTenR
gui mem append $res
##
# Display attributes in tooltips
#
gui settings set "tooltipsWithAttrs" 1
}
# -----------------------------------------------------------------------------
# traverseCRt - The traverseCRt procedure actually traverses the design
# hierarchy tree by recursively calling itself for each
# down-module. It collects the Rs and Cs in global CAPList
# and RESList.
# -----------------------------------------------------------------------------
#
proc HeavyCRt:traverseCRt {db mod} {
global CAPList RESList
$db foreach inst $mod inst {
##
# dive down into sub-modules
#
if {[$db isModule $inst]} {
set down [$db moduleOf $inst]
##
# we use the "yellow" flag to avoid traversing
# the same module multiple times (speedup).
#
if {![$db flag $down is yellow]} {
HeavyCRt:traverseCRt $db $down
$db flag $down set yellow
}
continue
}
##
# get primitive function
#
set func [$db primFuncOf $inst]
##
# check attribute R & C (the Spice parser stores values there).
# and insert this C or R into top-ten list
#
if { $func == "CAP"} {
set value [$db attr $inst getValue "C"]
if {$value == ""} {
continue
}
set value [HeavyCRt:mapSpiceUnits $value]
if {$value == ""} {
continue
}
set CAPList [HeavyCRt:addTopTenHeavyCRt $CAPList $value $inst]
}
if { $func == "RES"} {
set value [$db attr $inst getValue "R"]
if {$value == ""} {
continue
}
set value [HeavyCRt:mapSpiceUnits $value]
if {$value == ""} {
continue
}
set RESList [HeavyCRt:addTopTenHeavyCRt $RESList $value $inst]
}
}
}
# -----------------------------------------------------------------------------
# mapSpiceUnits - The mapSpiceUnits procedure maps spice values like 0.5n or
# 12.8k to the base unit or returns "" if the value is not ok.
# -----------------------------------------------------------------------------
#
proc HeavyCRt:mapSpiceUnits {val} {
if {[scan $val "%g%s" v unit] == 2} {
set u 1
switch -glob -- [string tolower $unit] {
t* {set u 1e12}
g* {set u 1e9}
meg* {set u 1e6}
k* {set u 1e3}
mil* {set u 25.4e-6}
m* {set u 1e-3}
u* {set u 1e-6}
n* {set u 1e-9}
p* {set u 1e-12}
f* {set u 1e-15}
default {}
}
return [expr {$v * $u}]
} else {
if {[string is double $val]} {
return $val
}
}
return "" ;# bad
}
# -----------------------------------------------------------------------------
# addTopTenHeavyCRt - The addTopTenHeavyCRt procedure inserts the given oid and
# value into a sorted list with max length of 10.
# The biggest values come first.
# -----------------------------------------------------------------------------
#
proc HeavyCRt:addTopTenHeavyCRt {list value oid} {
set entry [list $value $oid]
set i 0
foreach e $list {
if { $value > [lindex $e 0] } {
##
# insert entry before $e and limit list length to max 10.
#
set list [linsert $list $i $entry]
return [lrange $list 0 9]
}
incr i
}
if {$i < 10} {
##
# we didn't insert, but the list length is < 10 - so we append
#
lappend list $entry
}
return $list
}
# -----------------------------------------------------------------------------
# getTopTenCR - The getTopTenCR procedure returns a list of oids from the given
# top-ten list.
# -----------------------------------------------------------------------------
#
proc HeavyCRt:getTopTenCR {list} {
set res {}
foreach n $list {
lappend res [lindex $n 1]
}
return $res
}
# =============================================================================
# Call the initialization procedure.
# =============================================================================
#
HeavyCRt:Init
|