Mail Archives: opendos/1997/02/28/05:31:39
> Under CP/M, the first character in the directory entry was not the first
> character of the name. It contained the user number (0x00 through 0x0f) for a
> file which was not deleted or 0xe5 for a deleted file. If it contained anything
> else, you couldn't get to the file.
I wrote a little thingy which gave hierarchical subdirectories on a
CP/M 2.2 disk. It used the 'unused' user areas 0x10 to 0xfe
(excluding 0xe5) for the different directories, and a control file in
user area 0xff to map user areas to names (of up to 8 chars). It
supported something similar to symlinks for directories as well, by
mapping multiple names onto a single user area.
-- David Cantrell, http://www.eimages.co.uk/users/davidc/
Power is both corrupting and dangerous when unchallenged and
concentrated in the hands of the majority. Voices of tolerance
and compassion are easily drowned.
-- Akbar S. Ahmed
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