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Moved to ProDOS
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parent
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119
prozap.pl
119
prozap.pl
@ -1,119 +0,0 @@
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#!/usr/bin/perl -w
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#
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# prozap.pl:
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#
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# Utility to edit a ProDOS block (.PO image).
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#
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# 20190115 LSH
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#
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use strict;
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use PO;
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my $debug = 0;
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my $blk = -1;
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my $dst_blk = -1;
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my $write = 0;
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my @mods = ();
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while (defined $ARGV[0] && $ARGV[0] =~ /^-/) {
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# Debug
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if ($ARGV[0] eq '-d') {
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$debug = 1;
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shift;
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# Block to read
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} elsif ($ARGV[0] eq '-b' && defined $ARGV[1] && $ARGV[1] =~ /^\d+$/) {
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$blk = $ARGV[1];
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shift;
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shift;
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# Destination block
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} elsif ($ARGV[0] eq '-db' && defined $ARGV[1] && $ARGV[1] =~ /^\d+$/) {
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$dst_blk = $ARGV[1];
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shift;
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shift;
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# Allow modifying data.
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} elsif ($ARGV[0] =~ /^-m([ahA])/ && defined $ARGV[1] && $ARGV[1] ne '') {
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my $typ = $1;
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print "$ARGV[1] typ=$typ\n" if $debug;
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if ($ARGV[1] =~ /^([0-9a-fA-F]+):\s*(.+)$/) {
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print "1=$1 2=$2\n" if $debug;
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push @mods, { 'typ' => $typ, 'addr' => $1, 'vals' => $2 };
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}
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shift;
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shift;
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} elsif ($ARGV[0] eq "-w") {
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$write = 1;
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shift;
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} else {
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die "Unknown command line argument $ARGV[0]\n";
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}
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}
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my $pofile = shift or die "Must supply .po filename\n";
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die "Must supply block number 0-280\n" unless $blk >= 0 && $blk <= 280;
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$dst_blk = $blk unless $dst_blk >= 0;
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my $buf;
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# Read the block
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if (read_blk($pofile, $blk, \$buf)) {
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# Display the data in the block.
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dump_blk($buf);
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# Allow modifying the data.
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if ($write) {
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print "WRITING $dst_blk\n" if $debug;
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# Unpack the data in the block
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my @bytes = unpack "C512", $buf;
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# Process each modification.
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foreach my $mod (@mods) {
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my @mbytes = ();
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if ($mod->{'typ'} eq 'a') {
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print "ASCII vals=$mod->{'vals'}\n" if $debug;
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# Normal ASCII
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@mbytes = map { pack('C', ord($_)) } ($mod->{'vals'} =~ /(.)/g);
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} elsif ($mod->{'typ'} eq 'A') {
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print "HEX vals=$mod->{'vals'}\n" if $debug;
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# Apple II ASCII
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@mbytes = map { pack('C', ord($_) | 0x80) } ($mod->{'vals'} =~ /(.)/g);
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} elsif ($mod->{'typ'} eq 'h') {
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print "A2 ASCII vals=$mod->{'vals'}\n" if $debug;
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# HEX
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@mbytes = map { pack('C', hex(lc($_))) } ($mod->{'vals'} =~ /(..)/g);
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}
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my $addr = hex($mod->{'addr'});
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print "addr=$addr\n" if $debug;
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foreach my $byte (@mbytes) {
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print sprintf("byte=%02x\n", ord($byte)) if $debug;
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$bytes[$addr++] = ord($byte);
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}
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}
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# Re-pack the data in the block
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$buf = pack "C*", @bytes;
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# Write the destination block (default to block read).
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if (write_blk($pofile, $dst_blk, $buf)) {
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# Read the block back in.
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if (read_blk($pofile, $dst_blk, \$buf)) {
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# Display the data in the modified block.
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dump_blk($buf);
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} else {
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print "Failed final read!\n";
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}
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} else {
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print "Failed write!\n";
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}
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}
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} else {
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print "Failed initial read!\n";
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}
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1;
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