Maarten ter Huurne dec�a:

> >Do you know how can this computer (FS A1 WX) be upgraded or you have any
> >schem about it? I'm interested on it (and not just to 128 kb).
> >BTW: I asked it beore, but anybody could help me in the past... Does
> >anybody know how to solve (by hardware) the memmory mapper problem on
> >this computer (and most japanese MSX2+)?

> To solve the mapper problem by hardware is very difficult: it's located
> inside the S1990 MSX-engine.
> But only software that read mapper ports (which is illegal!) will encounter
> the problem. Well-written software will work with large mappers on S1990
> machines.

Yes, but unfortunatelly 90% of DOS 1 programs (mainly games and demos)
uses INs to read the memmory mapper and it hungs the computer...
I must admit that most of my programs also did it (just because I didn't
know that before I had an 2+ with this problem).

> If you want to avoid the mapper problem, expand to 512K. Only larger
> mappers have the problem.

Are you saying that I can expand my computer to 512 kb without
problems? (internally or externally?)


Hasta incluso,

               Ram�n

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