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hevosenliha
Registered: Sep 2008
Posts: 48 |
How to use +60k expansion
Yep, as easy as that.
How do I address that extra ram?
(In fact I'm more planning to build a +60k compatible expansion, but that's another story. It's easier for me to build stuff if I know how they are supposed to work...) |
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tlr
Registered: Sep 2003
Posts: 1790 |
You might get some clues from the way it is emulated.
(there's a descriptive comment in the beginning)
http://vice-emu.svn.sourceforge.net/viewvc/vice-emu/trunk/vice/..
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enthusi
Registered: May 2004
Posts: 677 |
it may be offtopic but maybe you'd rather consider something GEOram like?
It is VERY simple, easyly supports 512KB up to 2MB, is 100% emulated and there are modern schematics with nowadays ICs for a batterey buffered version (NEOram).
Also people (me :) still/again code for it.
Just my 2 cents.
Also see here, hehe:
http://www.youtube.com/results?search_query=enthusi+maniac+mans.. |
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Ninja
Registered: Jan 2002
Posts: 411 |
AAY64 to the rescue :) |
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hevosenliha
Registered: Sep 2008
Posts: 48 |
Thank you ninja!
Wonder why I haven't found that page earlier...
Now I'll just make up some nice ideas how to make the most out of this.
Or perhaps hack my c128 to be able to play +60k with the built in chips...
Sorry enthui, I can't waste the $dexx space. |
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AlexC
Registered: Jan 2008
Posts: 299 |
A bit off topic I guess but I suppose that actually Action Replay / Retro Replay internal ram is most popular memory expansion. Not useful if $dexx memory can't be used but anyway I though it was worth mentioning here as it must be more popular than +60k. It's also trivial to use. |
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hevosenliha
Registered: Sep 2008
Posts: 48 |
Sure, I have 1541u and IDE64.
I mostly use the second one, where $dexx is occupied by lots of io-stuff like ethernet, usb and whatnot.
$d100 for enabling +60k is simple enough.
Then I have lots of free io-space to implement page selection too. The only problem is that I don't know if my cdpld (3064) is powerful enough to do that stuff. I could use more... But a +60k is easily done in one chip. (plus memory, or the built in memory of a c128) |
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ready.
Registered: Feb 2003
Posts: 441 |
may I ask: what software are you going to use which takes advantage of the +60k? |
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Graham
Account closed
Registered: Dec 2002
Posts: 990 |
Quoting hevosenlihaSure, I have 1541u and IDE64.
1541u already has a REU inside with 16 MB RAM, and 1541u also has Retro Replay cartridge emulation which has 32 kB of RAM.
I don't see why you need that +60k expansion.
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Mace
Registered: May 2002
Posts: 1799 |
Quoting grahamI don't see why you need that +60k expansion.
My guess is: for the fun of it :) |
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hevosenliha
Registered: Sep 2008
Posts: 48 |
Quote: may I ask: what software are you going to use which takes advantage of the +60k?
turbo assembler |
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