[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Recode to Play MP3?
On May 23, 11:21 am, "Michael J. Mahon" <mjma...@aol.com> wrote:
>
> Actually, it cannot safely cache "sub-bank-switched" regions of memory
> without "knowing" their bank-switch protocols, and, unfortunately, the
> $C800-$CFFE region is such a sub-bank-switched region. If it could be
> made slot-specific, and the cache logic took the slot that originated
> the /IOSTROBE into account, it could work, by disabling caching of the
> extension space when switched in by certain slots. I don't know of any
> accelerators that go to this length.
>
Even then, a Videx Videoterm for example would not work, because tha
video RAM is bank-switched in 512 byte chunks into this c800.cfff
area.
--Jorge.