DOS33-perl/prozap.pl
2019-01-11 18:38:21 -06:00

97 lines
2.3 KiB
Perl

#!/usr/bin/perl -w
use strict;
use PO;
my $debug = 0;
my $blk = -1;
my $dst_blk = -1;
my $write = 0;
my @mods = ();
while (defined $ARGV[0] && $ARGV[0] =~ /^-/) {
if ($ARGV[0] eq '-d') {
$debug = 1;
shift;
} elsif ($ARGV[0] eq '-b' && defined $ARGV[1] && $ARGV[1] =~ /^\d+$/) {
$blk = $ARGV[1];
shift;
shift;
} elsif ($ARGV[0] eq '-db' && defined $ARGV[1] && $ARGV[1] =~ /^\d+$/) {
$dst_blk = $ARGV[1];
shift;
shift;
} elsif ($ARGV[0] =~ /^-m([ahA])/ && defined $ARGV[1] && $ARGV[1] ne '') {
my $typ = $1;
print "$ARGV[1] typ=$typ\n" if $debug;
if ($ARGV[1] =~ /^([0-9a-fA-F]+):\s*(.+)$/) {
print "1=$1 2=$2\n" if $debug;
push @mods, { 'typ' => $typ, 'addr' => $1, 'vals' => $2 };
}
shift;
shift;
} elsif ($ARGV[0] eq "-w") {
$write = 1;
shift;
}
}
my $pofile = shift or die "Must supply filename\n";
die "Must supply block number 0-280\n" unless $blk >= 0 && $blk <= 280;
$dst_blk = $blk unless $dst_blk >= 0;
my $buf;
if (read_blk($pofile, $blk, \$buf)) {
dump_blk($buf);
if ($write) {
print "WRITING $dst_blk\n" if $debug;
my @bytes = unpack "C512", $buf;
foreach my $mod (@mods) {
my @mbytes = ();
if ($mod->{'typ'} eq 'a') {
print "ASCII vals=$mod->{'vals'}\n" if $debug;
# Normal ASCII
@mbytes = map { pack('C', ord($_)) } ($mod->{'vals'} =~ /(.)/g);
} elsif ($mod->{'typ'} eq 'A') {
print "HEX vals=$mod->{'vals'}\n" if $debug;
# Apple II ASCII
@mbytes = map { pack('C', ord($_) | 0x80) } ($mod->{'vals'} =~ /(.)/g);
} elsif ($mod->{'typ'} eq 'h') {
print "A2 ASCII vals=$mod->{'vals'}\n" if $debug;
# HEX
@mbytes = map { pack('C', hex(lc($_))) } ($mod->{'vals'} =~ /(..)/g);
}
my $addr = hex($mod->{'addr'});
print "addr=$addr\n" if $debug;
foreach my $byte (@mbytes) {
print sprintf("byte=%02x\n", ord($byte)) if $debug;
$bytes[$addr++] = ord($byte);
}
}
my $buf = pack "C*", @bytes;
if (write_blk($pofile, $dst_blk, $buf)) {
if (read_blk($pofile, $dst_blk, \$buf)) {
dump_blk($buf);
} else {
print "Failed final read!\n";
}
} else {
print "Failed write!\n";
}
}
} else {
print "Failed initial read!\n";
}
1;