configCGC.tcl

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
###############################################################################
# Copyright (c) 2017-2024 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
#       Identify Clock Gates
#   @section
#       Analyze the Loaded Database
#   @description
#       Open a binfile and loop over all cells in the database and remove the
#       clock flag from all CGC cells.
#   @files
#       configCGC.tcl
#   @tag
#       zdb
###############################################################################


##
# Configure list with patterns to match 'clock gated cells'.
#
set cgcPattern {
    "*cgc*"
}

##
# Check the number of args.
#
if {$argc != 1} {
    error "Wrong # of args.\nUsage zdbsh [info script] <BINFILE>"
}

##
# Open the binfile given on the command line.
#
set db [zdb open [lindex $argv 0]]

##
# Loop over all loaded cells.
#
$db foreach cell cell {
    ##
    # Get the name of the cell.
    #
    set cellName [$db oid oname $cell]

    ##
    # Loop over all given CGC patterns.
    #
    foreach pattern $cgcPattern {
        ##
        # Skip all cells that do not match one of the CGC patterns.
        #
        if {![string match $pattern $cellName]} {
            continue
        }

        ##
        # This is a CGC cell:
        # Remove the clock flag from the cell and all ports.
        #
        $db flag $cell clear clock
        $db foreach port $cell port {$db flag $port clear clock}
        break
    }
}

##
# Finalize script.
#
$db close