Re: [cc65] Directory/Drive functions

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From: Greg King (gngking_at_erols.com)
Date: 2003-06-04 14:16:52 

From: Groepaz
Date: Monday, June 02, 2003, 05:56 PM
>
> I've written POSIX-like routines for the CBM machines.
> Someone on the list had made them work OK with the rest of the library
> AFAIK; maybe he can post them [don't remember if he did :=)].

He did -- on 2003-April-24.

The files are in:
http://mysite.verizon.net/vze4nxfk/pdirectory.tgz

That archive holds source-code for POSIX directory functions, for the CBM
targets.  It has general header files for the functions.
And, it has a test program that will display the current directory.

--------------------------------------

Be sure to use Uz's answer to the second question:

        unsigned char drive = *(unsigned char*)0xBA;

_before_ you use the CBM_ file-functions!

I think that it won't work if you have any standard file-functions in your
program.  Constructors open the stdin, stdout, and stderr files before
main() is called; 0xBA will point to them instead of the disk-drive.

Uz, I suggest an addition to the start-up code:
Save the value of DEVNUM into _curunit.  Then, before returning to BASIC's
READY-prompt, restore DEVNUM from _curunit.

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