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https://opencores.org/ocsvn/socgen/socgen/trunk
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[/] [socgen/] [trunk/] [tools/] [bin/] [hex2abs16] - Rev 46
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eval 'exec `which perl` -S $0 ${1+"$@"}'
if 0;
#/**********************************************************************/
#/* */
#/* ------- */
#/* / SOC \ */
#/* / GEN \ */
#/* / TOOL \ */
#/* ============== */
#/* | | */
#/* |____________| */
#/* */
#/* Converts a intel hex file into a 16 bit verilog readmemh format */
#/* */
#/* */
#/* Author(s): */
#/* - John Eaton, jt_eaton@opencores.org */
#/* */
#/**********************************************************************/
#/* */
#/* Copyright (C) <2010> <Ouabache Design Works> */
#/* */
#/* This source file may be used and distributed without */
#/* restriction provided that this copyright statement is not */
#/* removed from the file and that any derivative work contains */
#/* the original copyright notice and the associated disclaimer. */
#/* */
#/* This source file is free software; you can redistribute it */
#/* and/or modify it under the terms of the GNU Lesser General */
#/* Public License as published by the Free Software Foundation; */
#/* either version 2.1 of the License, or (at your option) any */
#/* later version. */
#/* */
#/* This source is distributed in the hope that it will be */
#/* useful, but WITHOUT ANY WARRANTY; without even the implied */
#/* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR */
#/* PURPOSE. See the GNU Lesser General Public License for more */
#/* details. */
#/* */
#/* You should have received a copy of the GNU Lesser General */
#/* Public License along with this source; if not, download it */
#/* from http://www.opencores.org/lgpl.shtml */
#/* */
#/**********************************************************************/
# ToDO: add handling unaligned words
############################################################################
# General PERL config
############################################################################
use Getopt::Long;
use English;
use File::Basename;
$OUTPUT_AUTOFLUSH = 1; # set autoflush of stdout to TRUE.
############################################################################
### Process the options
############################################################################
Getopt::Long::config("require_order", "prefix=-");
GetOptions("h"
) || die "(use '$program_name -h' for help)";
##############################################################################
## Help option
##############################################################################
if ( ($opt_h eq "1") )
{ print "\n type test filename ( no extension)";
print "\n";
exit 1;
}
#############################################################################
##
## open intel hex file and read into array
##
#############################################################################
my $prog_name = $ARGV[0];
my $input_file = ${prog_name}.".hex";
my $output_file = ${prog_name}.".abs16";
print "Reading hex File $input_file\n";
print "Writing abs File $output_file\n";
open VERILOG , "> $output_file";
open FILE, $input_file;
open DEFINES , "> ROM_defines.v";
while(<FILE>){push @intel_hex, $_ ;}
#############################################################################
##
## Clear a storage area for the 16 bit words
##
#############################################################################
my $x=0;
while( $x <= 65535)
{
@Mem[$x] = "0000";
$x = $x+1;
}
#############################################################################
##
## Parse Data into storage converting from 8 bit bytes to 16 bit words
##
#############################################################################
my $pointer = 0;
my $max_pointer = 0;
my $start_address = 65536;
foreach $line (@intel_hex)
{
$colon = substr($line, 0,1);
$length = (cvt(substr($line, 1,1))* 16) + cvt(substr($line, 2,1));
$address = cvt(substr($line, 3,1));
$address = cvt(substr($line, 4,1))+($address *16) ;
$address = cvt(substr($line, 5,1))+($address *16) ;
$address = cvt(substr($line, 6,1))+($address *16) ;
$type = substr($line, 7,2);
if(($type eq "00") )
{
if( $address <= $start_address) {$start_address = $address;}
$x=9;
while( $x <= 7+($length *2))
{
$value_E = substr($line, $x,2);
$value_O = substr($line, $x+2,2);
$pointer = (($address/2) +($x-9)/4);
if( $pointer > $max_pointer ) {$max_pointer = $pointer}
@Mem[$pointer] = $value_O.$value_E;
$x= $x+4;
}
}
}
#############################################################################
##
## dump out up to the last word, undefined space is 000
##
#############################################################################
$x = ($start_address/2);
while( $x <= ($max_pointer))
{
printf VERILOG ("%s\n",@Mem[$x]);
$x = $x+1;
}
$words = ($max_pointer) - ($start_address/2)+1;
printf DEFINES ("`define PROG_FILE /${prog_name}.abs16\n" );
printf DEFINES ("`define ROM_WIDTH 16\n" );
printf DEFINES ("`define ROM_WORDS $words \n" );
#############################################################################
##
## convert 0-9,A-F to decimal or 0 if out of range
##
#############################################################################
sub cvt {
$temp = ord($_[0]);
if( $temp <= 48) { return 0 }
if( $temp <= 58) { return $temp - 48 }
if( $temp <= 64) { return 0 }
if( $temp <= 70) { return ($temp - 65)+10 }
return 0;
}
1
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