Apple-2-Tools/DOS33-perl
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Bug fixes

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Leeland Heins 2019-01-11 22:29:00 -06:00 committed by GitHub
parent b041b5a934
commit ddd5f1fde8
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3 changed files with 52 additions and 5 deletions
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53
ProDOS.pm
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@ -1,6 +1,6 @@
#!/usr/bin/perl -w #!/usr/bin/perl -w
package PRODOS; package ProDOS;
use strict; use strict;
@ -36,8 +36,7 @@ my $key_vol_dir_blk = 2;
# 27-28 BIT_MAP_POINTER # 27-28 BIT_MAP_POINTER
# 29-2a TOTAL_BLOCKS # 29-2a TOTAL_BLOCKS
# #
my $vol_dir_blk_tmpl = 'CCCCa252'; my $vol_dir_blk_tmpl = 'vvCa15x8nnCCCCCvvv';
my $vol_dir_hdr_tmpl = 'Ca15x8nnCCCCCnnn';
# #
# Volume Bit Map # Volume Bit Map
@ -98,5 +97,53 @@ my $vol_bit_map_tmpl = 'C*';
# #
my $file_desc_ent_tmpl = 'Ca15CnnnnnCCCa8nnCC'; my $file_desc_ent_tmpl = 'Ca15CnnnnnCCCa8nnCC';
# Parse a Volume Directory Block
sub parse_vol_dir_blk {
my ($buf, $dbg) = @_;
$debug = 1 if defined $dbg && $dbg;
my ($prv_vol_dir_blk, $nxt_vol_dir_blk, $storage_type_name_length, $volume_name, $creation_yymmdd, $creation_hhmm, $version, $min_version, $access, $entry_length, $entries_per_block, $file_count, $bit_map_pointer, $total_blocks) = unpack $vol_dir_blk_tmpl, $buf;
my $name_length = $storage_type_name_length & 0x0f;
if ($debug) {
print sprintf("prv_vol_dir_blk=%04x\n", $prv_vol_dir_blk);
print sprintf("nxt_vol_dir_blk=%04x\n", $nxt_vol_dir_blk);
print sprintf("storage_type_name_length=%02x\n", $storage_type_name_length);
print sprintf("name_length=%02x\n", $name_length);
print sprintf("volume_name=%s\n", $volume_name);
print sprintf("volume_name=%s\n", substr($volume_name, 0, $name_length));
print sprintf("creation=%04x%04x\n", $creation_yymmdd, $creation_hhmm);
print sprintf("version=%02x\n", $version);
print sprintf("min_version=%02x\n", $min_version);
print sprintf("access=%02x\n", $access);
print sprintf("entry_length=%02x\n", $entry_length);
print sprintf("entries_per_block=%02x\n", $entries_per_block);
print sprintf("file_count=%04x\n", $file_count);
print sprintf("bit_map_pointer=%04x\n", $bit_map_pointer);
print sprintf("total_blocks=%02x\n", $total_blocks);
}
return $prv_vol_dir_blk, $nxt_vol_dir_blk, $storage_type_name_length, $volume_name, $creation_yymmdd, $creation_hhmm, $version, $min_version, $access, $entry_length, $entries_per_block, $file_count, $bit_map_pointer, $total_blocks;
}
#
# Get Volume Directory Block
#
sub get_vol_dir_blk {
my ($pofile, $dbg) = @_;
$debug = 1 if defined $dbg && $dbg;
my $buf;
if (read_blk($pofile, $key_vol_dir_blk, \$buf)) {
dump_blk($buf) if $debug;
return parse_vol_dir_blk($buf, $debug);
}
return 0;
}
1; 1;