Tristan Mumford wrote:
Michael J. Mahon wrote:Tristan Mumford wrote:
Memory addressability is the main issue though. Like I said in another post I could just make a banked memory card, but... well, I just don't want to do it that way :)Accessibility of additional memory is one reason for putting the '816 on an Auxiliary Memory card. That could give the '816 a linear view of the memory and the 65(C)02 the conventional banked view (though seeing chunks of the memory as "stack" is probably not very handy ;-).Once the 65816 is enabled does it actually matter what the original CPU sees? especially if it is held in the disabled state. I think I'm concerned about treading on the toes of the I/O in the system more than anything else.
No, unless you'd like the 6502 to do something for you...
Apart from when I'm just messing around on it, it'd be running a custom build of Contiki. There would be a fairly noninteractive (to the local user) server app. Either the multiplayer 'vaguely roguelike' game I started writing for this purpose at the beginning of the year, or something else as yet undecided.Actually, there was a very nice integration of a 65816 with an Apple II compatibility mode--I think it was called the IIgs. ;-) Seriously, why not run your large-memory apps on a IIgs and save a lot of non-standard trouble?A IIgs has been on my wishlist for over a decade. Every one I have found has been over 1000km away and at least $100 more than I'm willing to pay for one. So I use what I've got.
Wow--I think of IIgs's as $10 items--but then there's shipping. ;-( The IIgs is in good supply and is relatively uncollectable!
Thanks for your help. I always appreciate it.
You're very welcome. -michael NadaNet networking for Apple II computers! Home page: http://members.aol.com/MJMahon/ "The wastebasket is our most important design tool--and it's seriously underused."