] With DOS2 cartridges, DOS1 bootsectors (yes, UZIX disk bootsector is DOS1)
] also enable BDOS2???
]       If the answer is yes, HOW can I disable DOS2?
Answer is yes.

Answer to second question is: NOT. Though, there are three different 
solutions to follow:
1) Use the DOS2 mapper routines if DOS2 is present.
2) Patch the DOS2 mapper support routines to read from the mapper I/O ports. 
Though, this might give problems on some MSX models.
3) Don't use any BDOS call. Not even to read sectors. In stead, only use 
entry #4010 in the various diskroms to read sectors. Entry #4010 is 
independent from the DOS version and should also be independent from the DOS2 
mapper support routines.


Kind regards,
Alex Wulms

-- 
Alex Wulms/XelaSoft - MSX of anders NIX - Linux 4 ever
See my homepage for info on the  *** XSA *** format
http://www.inter.nl.net/users/A.P.Wulms



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