Perhaps the answer is not unlimited but undefined and programs that read
the directory have to impose limits.
Bruce Baker homepage: www.hal-pc.org/~bbaker/
blog: www.xanga.com/brb4311
The lord is my shepherd I shall not want.
On Mon, 14 Nov 2005, Steven Weyhrich wrote:
I did a little experimentation with ProDOS today, and found something out
about file limits.
Using Virtual ][, I created a directory on a 32 meg volume. I then used a
BASIC program to create a series of 1 block text files, using a FOR/NEXT
loop. After the loop got up to 2500, I interrupted the program, and did a
CAT of the A directory.
The files were named A0, A1, A2, A3, etc. The directory listing sped by
rapidly, and then suddenly I found it was starting over again! It got up to
file A1662, and then the next line had a file named "A", with a filetype of
$75, size of 8 blocks (all the others were 1 block), creation date of
12-DEC-04 0:02, and a file length of 862147.
1663 files is $67F in hex; that number does not sound significant to me.
SysUtil.Sys can only display 533 files in a directory at one time, otherwise
it runs out of memory, so I cannot get to the file to delete it. I ejected
the disk, and started up Bernie to look at it. Directory "A" was absent! And
then I could not get it to load again in Virtual ][. So the directory
structure may be hosed.
So the limit is somewhere below 1662 files.
-------------------------------------------------------
Steven Weyhrich <IX0YE>--<
Apple II History
http://apple2history.org
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