Date   : Wed, 21 Feb 1996 11:51:08 GMT
From   : David Alan Gilbert <gilbertd@...>
Subject: Re: Filing systems & Repton problems

> ; 1. Write my own filing system
> ; 2. Write an 8271 emulation
> ; 3. Use DOS files as BBC files (With an additional header/catalogue file)
> 
> I trap certain OS calls to give a high speed 'cassette' system. All files
> have a 10 byte header.
> 
> Anyone any ideas how to implement the disk FS easily? :)

An 8271 emulator really isn't THAT hard; to be honest I did it because I
considered it easier than intercepting all the calls.  Admittedly I've
never got around to doing 'write' emulation on it.
(I actually also wrote a 1772 emulator with write but never got around
to merging it with my beeb emulator).

Dave