34 lines
996 B
Perl
34 lines
996 B
Perl
|
# Postprocessor for dsp56k bootstrap code.
|
||
|
|
#
|
||
|
|
# Copyright Ben Hutchings 2011.
|
||
|
|
#
|
||
|
|
# This program is free software; you can redistribute it and/or modify
|
||
|
|
# it under the terms of the GNU General Public License as published by
|
||
|
|
# the Free Software Foundation; either version 2 of the License, or
|
||
|
|
# (at your option) any later version.
|
||
|
|
|
||
|
|
use strict;
|
||
|
|
use warnings;
|
||
|
|
|
||
|
|
my @memory;
|
||
|
|
my %symbol;
|
||
|
|
|
||
|
|
# Reconstruct memory image and symbol table
|
||
|
|
while (<>) {
|
||
|
|
if (/^P ([0-9A-F]{4}) ([0-9A-F]{6})\n/) {
|
||
|
|
$memory[hex($1)] = hex($2);
|
||
|
|
} elsif (/^I ([0-9A-F]{6}) (\w+)\n/) {
|
||
|
|
$symbol{$2} = hex($1);
|
||
|
|
} else {
|
||
|
|
print STDERR "W: did not recognise line $.\n";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
# Concatenate first and second stage. Second stage is assembled
|
||
|
|
# between 'upload' and 'upload_end', but initially loaded at
|
||
|
|
# 'real' (end of the first stage).
|
||
|
|
for (0 .. ($symbol{real} - 1), $symbol{upload} .. ($symbol{upload_end} - 1)) {
|
||
|
|
my $word = $memory[$_] || 0;
|
||
|
|
print pack('CCC', $word / 65536, ($word / 256) % 256, $word % 256);
|
||
|
|
}
|