addassign

#!/usr/bin/perl
# SPDX-License-Identifier: Apache-2.0
# Copyright 2020 Western Digital Corporation or its affiliates.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

use Getopt::Long;

$helpusage = "placeholder";

GetOptions ('in=s'      => \$in,
            'prefix=s'  => \$prefix) || die("$helpusage");



@in=`cat $in`;


foreach $line (@in) {

    if ($line=~/\#/) { next; }

    if ($line=~/([^=]+)=/) {
        $sig=$1;
        $sig=~s/\s+//g;
        printf("logic $sig;\n");
    }
}

foreach $line (@in) {

    if ($line=~/\#/) { next; }

    if ($line=~/([^=]+)=\s*;/) {
        printf("assign ${prefix}$1 = 1'b0;\n");
        next;
    }

    if ($line=~/([^=]+)=\s*\(\s*\);/) {
        printf("assign ${prefix}$1 = 1'b0;\n");
        next;
    }

    if ($line =~ /=/) { printf("assign ${prefix}$line"); }
    else              { printf("$line"); }
}


exit;