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177 | ###############################################################################
# Copyright (c) 2009-2024 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
# Extract Clocked Elements
# @section
# Miscellaneous Userware Examples
# @description
# Extract logic cloud from all given start points to all clocked
# elements and load the result to the Cone window. Flip-flops belonging
# together are lined up in columns and get the same color.
# @files
# logicCloud.tcl
# @example
# demo/rtl/aquarius/aquarius.f
# @cmdline
# -F @example[0]
# -userware @files[0]
# @tag
# netlist rtl verilog
###############################################################################
# -----------------------------------------------------------------------------
# _extractAndShowLogicCloud - Start the logic extraction and post process the
# result to load it into the Cone window.
# -----------------------------------------------------------------------------
#
proc _extractAndShowLogicCloud {oidList} {
global colGroupCount
set db [gui database get]
##
# Return if the database is empty.
#
if {$db == {}} {
return
}
##
# Configure the GUI to filter hierarchy borders in the Cone window
#
gui settings set "cone:hierfilter" 1
gui settings changed
##
# Loop over all objects in the oidList and - depending on the object
# type - perform the corresponding action.
#
$db foreach top top {$db flatflag $top clearall white}
set startL {}
foreach oid $oidList {
switch -- [$db oid type $oid] {
"inst" {
set func [$db primFuncOf $oid]
if {($func == "DFF") || ($func == "DLATCH")} {
$db flatflag $oid set white
$db foreach pin $oid pin {lappend startL $pin; break}
}
if {$func == "WIDE_DFF"} {
$db flatflag $oid set white
$db foreach pinBus $oid pinBus {
$db foreach pin $pinBus pin {lappend startL $pin}
break
}
}
}
"pin" {
set inst [$db oid convertTo inst $oid]
$db flatflag $inst set white
if {([$db primFuncOf $inst] == "DFF") || ($func == "DLATCH")} {
lappend startL $oid
}
}
"pinBus" {
set inst [$db oid convertTo inst $oid]
$db flatflag $inst set white
if {[$db primFuncOf $inst] != "WIDE_DFF"} {
continue
}
$db foreach pinBus $inst pinBus {
$db foreach pin $pinBus pin {lappend startL $pin}
break
}
}
"port" {lappend startL $oid}
"portBus" {$db foreach port $oid port {lappend startL $port}}
default {}
}
}
if {$startL == {}} {
return
}
set resL [$db cone -out -unique -targetFlaggedCell clock -startList $startL]
set newList {}
array unset _hash
array set _hash {}
foreach oid $resL {
if {[string match "port*" [$db oid type $oid]]} {
continue
}
if {[$db isModule $oid]} {
continue
}
if {[$db isBusMember $oid]} {
set bus [$db busOf $oid]
if {![info exists _hash($bus)]} {
set _hash($bus) {}
}
lappend _hash($bus) $oid
continue
}
lappend newList $oid
_markDFF $db $oid $colGroupCount
}
foreach {bus subList} [array get _hash] {
if {[$db widthOf $bus] == [llength $subList]} {
lappend newList $bus
} else {
foreach sub $subList {
lappend newList $sub
}
}
_markDFF $db [lindex $subList end] $colGroupCount
}
gui cone append $newList
gui highlight changed
incr colGroupCount
}
# -----------------------------------------------------------------------------
# _markDFF - Add a colgroup attribute to the given DFF and set a highlight
# color.
# -----------------------------------------------------------------------------
#
proc _markDFF {db oid colGroupCount} {
set inst [$db oid convertTo inst $oid]
if {[$db flatflag $inst is white]} {
return
}
set func [$db primFuncOf $inst]
if {($func == "DFF") || ($func == "DLATCH") || ($func == "WIDE_DFF")} {
if {[$db flatattr $inst getValue @colgroup] == ""} {
$db flatattr $inst set @colgroup=$colGroupCount
$db flathilight $inst set $colGroupCount
}
}
}
# =============================================================================
# Customize the Popup Menu.
# =============================================================================
#
set colGroupCount 0
gui popup append "Extract logic cloud" "_extractAndShowLogicCloud"
|