>>>>> "RB" == Ruud Baltissen <Ruud.Baltissen@abp.nl> writes: MV> You'll have to work around the PLA though. Writes to the $8000- MV> 9fff area are directed to the underlying RAM. RB> Yes, but the data shows up at the expansion port as well. When RB> _reading_ this area, the PAL enables ROML presuming EXROM is (L). RB> When writing this area ROML is kept (H) to avoid busclashes. But RB> what hinders you to make your own $8000/9FFF decoder for writes? Nothing, but writes will still bleed through -- you'll write to the external RAM as well as the internal RAM. This may or may not be a problem. -- ___ . . . . . + . . o _|___|_ + . + . + . . Per Olofsson, konstnär o-o . . . o + MagerValp@cling.gu.se - + + . http://www.cling.gu.se/~cl3polof/ - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail email@example.com.
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