Subversion Repositories socgen

eval 'exec `which perl` -S $0 ${1+"$@"}'

   if 0;

#/**********************************************************************/

#/*                                                                    */

#/*             -------                                                */

#/*            /   SOC  \                                              */

#/*           /    GEN   \                                             */

#/*          /    TOOL    \                                            */

#/*          ==============                                            */

#/*          |            |                                            */

#/*          |____________|                                            */

#/*                                                                    */

#/*  Converts a intel hex file into a 16 bit verilog readmemh format   */

#/*  split into 8 bit even and 8 bit odd files                         */

#/*                                                                    */

#/*  Author(s):                                                        */

#/*      - John Eaton, jt_eaton@opencores.org                          */

#/*                                                                    */

#/**********************************************************************/

#/*                                                                    */

#/*    Copyright (C) <2010>                     */

#/*                                                                    */

#/*  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_e  = ${prog_name}.".absE";

  my $output_file_o  = ${prog_name}.".absO";

  print "Reading hex File  $input_file\n";

  print "Writing abs File  $output_file_e\n";

  print "Writing abs File  $output_file_o\n";

  open  VERILOG_E , ">  $output_file_e";

  open  VERILOG_O , ">  $output_file_o";

  open   FILE, $input_file;

  open  DEFINES , ">  ROM_defines.v";

  while(){push @intel_hex, $_  ;}

#############################################################################

##

##  Clear a storage area for the 16 bit words

##

#############################################################################

   my  $x=0;

      while( $x <= 65535)

           {

           @Mem_e[$x] = "00";

           @Mem_o[$x] = "00";

            $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_e[$pointer] = $value_E;

           @Mem_o[$pointer] = $value_O;

           $x= $x+4;

           }

     }

    }

#############################################################################

##

##  dump out up to the last word, undefined space is 000

##

#############################################################################

      $x = ($start_address/2);

      while( $x <= ($max_pointer))

           {

           printf VERILOG_E (" %s\n",@Mem_e[$x]);

           printf VERILOG_O (" %s\n",@Mem_o[$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;

}

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