103 lines
2.6 KiB
Perl
103 lines
2.6 KiB
Perl
#!/usr/bin/perl -w
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package PRODOS;
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use strict;
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use PO;
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use Exporter::Auto;
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my $debug = 0;
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my $key_vol_dir_blk = 2;
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#
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# Volume Directory Block
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#
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# 00-01 Previous Volume Directory Block
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# 02-03 Next Volume Directory Block
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#
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# Volumne Directory Header
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#
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# 04 STORAGE_TYPE/NAME_LENGTH
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# fx where x is length of VOLUME_NAME
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# 05-13 VOLUME_NAME
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# 14-1b Not used
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# 1c-1f CREATION
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# 0-1 yyyyyyymmmmddddd year/month/day
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# 2-3 000hhhhh00mmmmmm hours/minues
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# 20 VERSION
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# 21 MIN_VERSION
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# 22 ACCESS
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# 23 ENTRY_LENGTH
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# 24 ENTRIES_PER_BLOCK
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# 25-26 FILE_COUNT
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# 27-28 BIT_MAP_POINTER
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# 29-2a TOTAL_BLOCKS
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#
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my $vol_dir_blk_tmpl = 'CCCCa252';
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my $vol_dir_hdr_tmpl = 'Ca15x8nnCCCCCnnn';
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#
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# Volume Bit Map
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#
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my $vol_bit_map_tmpl = 'C*';
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#
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# File Descriptive Entries
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#
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# 00 STORAGE_TYPE/NAME_LENGTH
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# 0x Deleted entry. Available for reuse.
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# 1x File is a seedling file (only one block)
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# 2x File is a sapling file (2-256 blocks)
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# 3x File is a tree file (257-32768 blocks)
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# dx File is a subdirectory
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# ex Reserved for Subdirectory Header entry
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# fx Reserved for Volume Directory Header entry
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# x is the length of FILE_NAME
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# 01-0f FILE_NAME
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# 10 FILE_TYPE
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# 00 Typeless file
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# 01 BAD Bad block(s) file
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# 04 TXT Text file (ASCII text, msb off)
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# 06 BIN Binary file (8-bit binary image)
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# 0f DIR Directory file
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# 19 ADB AppleWorks data base file
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# 1a AWP AppleWorks word processing file
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# 1b ASP AppleWorks spreadsheet file
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# ef PAS ProDOS PASCAL file
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# f0 CMD ProDOS added command file
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# f1-f8 User defined file types 1 through 8
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# fc BAS Applesoft BASIC program file
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# fd VAR Applesoft stored variables file
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# fe REL Relocatable object module file (EDASM)
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# ff SYS ProDOS system file
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# 11-12 KEY_POINTER
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# 13-14 BLOCKS_USED
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# 15-17 EOF
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# 18-1b CREATION
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# 0-1 yyyyyyymmmmddddd year/month/day
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# 2-3 000hhhhh00mmmmmm hours/minues
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# 1c VERSION
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# 1d MIN_VERSION
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# 1e ACCESS
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# 80 File may be destroyed
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# 40 File may be renamed
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# 20 File has changed since last backup
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# 02 File may be written to
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# 01 File may be read
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# 1f-20 AUX_TYPE
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# TXT Random access record length (L from OPEN)
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# BIN Load address for binary image (A from BSAVE)
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# BAS Load address for program image (when SAVEd)
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# VAR Address of compressed variables inmage (when STOREd)
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# SYS Load address for system program (usually $2000)
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# 21-24 LAST_MOD
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# 25-26 HEADER_POINTER
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#
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my $file_desc_ent_tmpl = 'Ca15CnnnnnCCCa8nnCC';
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1;
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