On Sun, 21 Mar 1999, Erik wrote:
> So that rumor is solved , you are allowed to read them.
> The only problem is that the unused bit's of the registers can return
> unexpected data.( always 1 or 0 or the data you did write to it or maybe crap)
> You first have to calculate the amount of memory an
>Here i have the msx technical databook , micro$oft 5 feb. 1986 rel.6.0
>It says on MSX2 memory mapper specification chapter 1 line 4
>
>- The mapping registers are at FCH to FFH of I/O address. The are both read
and
>write addresses. -
>
>So that rumor is solved , you are allowed to read them.
>T
Jon De Schrijder schreef:
> Laurens Holst wrote:
> > ...
> > !!! GRUWEL GRUWEL !!!
>
> --> for non-Dutch readers: !!! HORRIFYING HORRIFYING !!!
>
> >
> > Issuing an IN on the mapper-ports is against the MSX-standard!!!
> > NEVER >>IN<< the Mapper-ports. The result is ABSOLUTELY unreliable and
>
Laurens Holst wrote:
> ...
> !!! GRUWEL GRUWEL !!!
--> for non-Dutch readers: !!! HORRIFYING HORRIFYING !!!
>
> Issuing an IN on the mapper-ports is against the MSX-standard!!!
> NEVER >>IN<< the Mapper-ports. The result is ABSOLUTELY unreliable and
> machine/mapper-dependant. One computer inv
