a2jer
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Posts posted by a2jer
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The file is just dumped in DOS-order, as opposed to ProDOS order. In ProDOS order, the directory block 2 would start at offset 0x400 in the file, but with DOS-order it starts at 0xB00. Basically, within each track, the 256-byte sectors are rearranged as 0, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 15, which means ProDOS blocks 0-7 are composed of sectors:
block 0: 0, 14
block 1: 13, 12
block 2: 11, 10
block 3: 9, 8
block 4: 7, 6
block 5: 5, 4
block 6: 3, 2
block 7: 1, 15
I'm surprised Ciderpress doesn't recognize it.
Here's the catalog:
/EXAMPLES
*PRODOS SYS $2000 30 14848 1984-Sep-18 00:00
*BASIC.SYSTEM SYS $2000 21 10240 1984-Jun-18 00:00
*STARTUP BAS $0801 7 2794 1984-Jul-26 09:12
*HELP BIN $2000 5 1537 1983-Oct-01 00:00
*HELPSCREENS TXT $0200 60 12358656 1983-Oct-01 00:00
*PRACTICE DIR 1 512 1983-Oct-01 00:00
*PROGRAMS DIR 3 1536 1983-Oct-01 00:00
*DATA DIR 1 512 1987-Oct-16 23:11
*EXTRAS DIR 1 512 1983-Oct-01 00:00
*DIRECTORY DIR 1 512 1983-Oct-01 00:00
Free space: 34 blocks
Yes, HELPSCREENS is a sparse file.

Compute Type-In compilation dsk images
in Apple II Computers
Posted
I'll add my thanks as well, CaptainBreakout! Great work!