Calling SUBROM routines from MSXDOS

[Adriano Camargo Rodrigues da Cunha]

        Hi, folks.

        I was making some proggies for MSXDOS and tried using the MSX2
SUBROM under DOS2. Simple like this:

        LD IY,(FAF7h)
        LD IX,subrom_routine_i_want_to_call
        CALL 001Ch

        Well, what is the result?
        For some routines, a great CRASH.
        For setting palette, NOTHING.
        For reading VDP registers, in some MSX, CRASH.
        For saving a screen area (copy(x,y) to "file.pic"), CRASH.

        Anybody knows what I'm doing wrong?
        Or I can't access some SUBROM routines due to system vars, DOS
environment, etc, etc, etc?

        Thanks,


Adriano Camargo Rodrigues da Cunha               ([EMAIL PROTECTED])
Engenharia de Computacao - UNICAMP
http://www.adrpage.cjb.net                       MSX-TR:I have one.And you?

* The Artificial Inteligence doesn't work due to the Natural Stupidity. *


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