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211 | ###############################################################################
# Copyright (c) 2018-2024 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
# Validate IC values
###############################################################################
##
# Attribute Name
#
set ValidateIC(attrName) "\$.IC"
##
# list of validated cells
# with - cellname
# - a list of validated ports
# - the validation expression
#
set ValidateIC(rules) {
INVX1 {Y A} {Y == !A}
AND2X1 {Y A B} {Y == (A & B)}
OR2X1 {Y A B} {Y == (A | B)}
XOR2X1 {Y A B} {Y == (A ^ B)}
BUFX2 {Y A} {Y == A}
}
# -----------------------------------------------------------------------------
# _convertToBool - convert voltage to boolean 1 or 0.
# -----------------------------------------------------------------------------
#
proc _convertToBool {icValue} {
if {$icValue < 0.7} {
return 0
}
return 1
}
# -----------------------------------------------------------------------------
# validateInst - Validate instance.
# -----------------------------------------------------------------------------
#
proc validateInst {inst cellName} {
global ValidateIC
##
# get info
#
set db $ValidateIC(db)
set attrName $ValidateIC(attrName)
set rule $ValidateIC(rule:$cellName)
##
# get ports and validation expression
#
set ports [lindex $rule 0]
set expression [lindex $rule 1]
##
# get all input values
# if there is no connection, or no IC value set ok to 0.
#
set ok 1
foreach port $ports {
set pin [$db search pin $inst $port]
if {[$db oid isnull $pin]} {
set ok 0
break
}
if {[$db isConnected $pin]} {
set net [$db connectedNet $pin]
if {[$db flag $net is power]} {
set icValues($port) 1
} elseif {[$db flag $net is ground]} {
set icValues($port) 0
} else {
set icValue [$db flatattr $net getMergedValue $attrName]
if {$icValue == ""} {
set ok 0
break
}
set icValues($port) [_convertToBool $icValue]
}
}
}
##
# if all ports have values
#
if {$ok} {
##
# check expression
#
set res [expr {$expression}]
if {!$res} {
lappend ValidateIC(resList) $inst
}
}
}
# -----------------------------------------------------------------------------
# _checkInsts - Check instances of module.
# -----------------------------------------------------------------------------
#
proc _checkInsts {mod} {
global ValidateIC
##
# get info
#
set db $ValidateIC(db)
##
# check all instances
#
$db foreach inst $mod inst {
##
# get cell name
#
set cellName [$db oid cname $inst]
##
# if validation is needed
#
if {[info exists ValidateIC(rule:$cellName)]} {
validateInst $inst $cellName
}
##
# go down if hierarchical
#
if {[$db isModule $inst]} {
set down [$db moduleOf $inst]
_checkInsts $down
}
}
}
# -----------------------------------------------------------------------------
# _validateICValue - Validate IC value.
# -----------------------------------------------------------------------------
#
proc _validateICValue {} {
global ValidateIC
##
# First check if a database is available (netlist is loaded).
#
set db [gui database get]
if {$db == {}} {
zmessage print ERR "No database loaded."
return
}
set ValidateIC(db) $db
##
# process rules
# simple regsub to convert port names to icValues() array names
# (may not work with all possible port names).
#
foreach {cellName ports expression} $ValidateIC(rules) {
foreach port $ports {
regsub -all -- $port $expression "\$icValues($port)" expression
}
set ValidateIC(rule:$cellName) [list $ports $expression]
}
##
# get top design
#
set top [$db get_top_design]
##
# recursively check all modules
#
set ValidateIC(resList) {}
_checkInsts $top
##
# set Mem Window
#
gui mem clear
gui window show Mem
gui window show Schem
gui mem append $ValidateIC(resList)
}
# =============================================================================
# Add a new main menu entry 'Debug' to access the procedure of this script.
# =============================================================================
#
gui menu command {"Debug" "Validate IC Values"} \
{_validateICValue}
|