> According to the official documentation on the Z80 regarding
> interrupt mode 2 says that bit 0 of the lower address byte is
> always 0. To be short, only the 7 most significant bits are used.
>
> I implemented it this way in NLMSX and UZIX works perfectly now.
>
> > ] > So, it is sufficient to write your pointer to (I + 0xFF,
> > I + 0x100), as shown
> > ] > in Laurens code example.
> > ] Thanks for explaining.
> > ]
> > ] > Kind regards,
> > ] > Alex Wulms
>
> This should not work.
Well the manual is wrong on more points (e.g. the keyboard layout)s. In
practice the MSX always has #FF on the databus. But this once more proves
it's better to fill the entire I*256 --- I*256+256 area with the
interrupt-adress...
~Grauw
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