Apple-2-Tools/dmolony-DiskBrowser
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Update src/com/bytezone/diskbrowser/disk/DiskFactory.java

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dual dos addition
This commit is contained in:
Denis Molony 2018-12-18 13:06:19 +11:00
parent 9cf8ff9782
commit db293517a9
1 changed files with 21 additions and 14 deletions
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35
src/com/bytezone/diskbrowser/disk/DiskFactory.java
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@ -365,6 +365,9 @@ public class DiskFactory
if (debug) if (debug)
System.out.println (" known PASCAL checksum : " + checksum); System.out.println (" known PASCAL checksum : " + checksum);
disk = checkPascalDisk (appleDisk512); disk = checkPascalDisk (appleDisk512);
disk2 = checkDos (appleDisk256);
if (disk2 != null)
disk = new DualDosDisk (disk, disk2);
} }
else if (checksum == 3028642627L // else if (checksum == 3028642627L //
|| checksum == 2070151659L) // Enchanter || checksum == 2070151659L) // Enchanter
@ -412,6 +415,10 @@ public class DiskFactory
disk2 = checkProdos (appleDisk512); disk2 = checkProdos (appleDisk512);
if (disk2 != null) if (disk2 != null)
disk = new DualDosDisk (disk, disk2); disk = new DualDosDisk (disk, disk2);
// disk2 = checkCPMDisk (appleDisk256);
// if (disk2 != null)
// disk = new DualDosDisk (disk, disk2);
} }
} }
else if (suffix.equals ("po")) else if (suffix.equals ("po"))
@ -536,33 +543,33 @@ public class DiskFactory
/* /*
offset | size | description offset | size | description
------ | ---- | ----------- ------ | ---- | -----------
+$000 | Long | The integer constant '2IMG'. This integer should be little-endian, +$000 | Long | The integer constant '2IMG'. This integer should be little-endian,
so on the Apple IIgs, this is equivalent to the four characters so on the Apple IIgs, this is equivalent to the four characters
'GMI2'; in ORCA/C 2.1, you can use the integer constant '2IMG'. 'GMI2'; in ORCA/C 2.1, you can use the integer constant '2IMG'.
+$004 | Long | A four-character tag identifying the application that created the +$004 | Long | A four-character tag identifying the application that created the
file. file.
+$008 | Word | The length of this header, in bytes. Should be 52. +$008 | Word | The length of this header, in bytes. Should be 52.
+$00A | Word | The version number of the image file format. Should be 1. +$00A | Word | The version number of the image file format. Should be 1.
+$00C | Long | The image format. See table below. +$00C | Long | The image format. See table below.
+$010 | Long | Flags. See table below. +$010 | Long | Flags. See table below.
+$014 | Long | The number of 512-byte blocks in the disk image. This value should +$014 | Long | The number of 512-byte blocks in the disk image. This value should
be zero unless the image format is 1 (ProDOS order). be zero unless the image format is 1 (ProDOS order).
+$018 | Long | Offset to the first byte of the first block of the disk in the image +$018 | Long | Offset to the first byte of the first block of the disk in the image
file, from the beginning of the file. The disk data must come before file, from the beginning of the file. The disk data must come before
the comment and creator-specific chunks. the comment and creator-specific chunks.
+$01C | Long | Length of the disk data in bytes. This should be the number of +$01C | Long | Length of the disk data in bytes. This should be the number of
blocks * 512. blocks * 512.
+$020 | Long | Offset to the first byte of the image comment. Can be zero if +$020 | Long | Offset to the first byte of the image comment. Can be zero if
there's no comment. The comment must come after the data chunk, but there's no comment. The comment must come after the data chunk, but
before the creator-specific chunk. The comment, if it exists, should before the creator-specific chunk. The comment, if it exists, should
be raw text; no length byte or C-style null terminator byte is be raw text; no length byte or C-style null terminator byte is
required (that's what the next field is for). required (that's what the next field is for).
+$024 | Long | Length of the comment chunk. Zero if there's no comment. +$024 | Long | Length of the comment chunk. Zero if there's no comment.
+$028 | Long | Offset to the first byte of the creator-specific data chunk, or zero +$028 | Long | Offset to the first byte of the creator-specific data chunk, or zero
if there is none. if there is none.
+$02C | Long | Length of the creator-specific chunk; zero if there is no +$02C | Long | Length of the creator-specific chunk; zero if there is no
creator-specific data. creator-specific data.
+$030 | 16 bytes | Reserved space; this pads the header to 64 bytes. These values +$030 | 16 bytes | Reserved space; this pads the header to 64 bytes. These values
must all be zero. must all be zero.
*/ */