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Large RAM cards

Dwight Elvey

Veteran Member
Joined
Jun 21, 2003
Messages
5,000
Location
Santa Cruz
Hi
I have a RAM card the I'd like to increase my usage of. It is
a 1 MEG card but I forget the manufacture ( I'll need to look ).
It works fine as a 64K card and I suspect that is a standard
method used in the Apple ][e.
What I don't know is how to switch banks to take advantage
of the remaining memory.
Is there a standard way of handling this? I may have to disassemble
the code in the ROM.
Dwight
 
Appleworks will show the extra memory in the form of a larger desktop. Copy II Plus (version 7 on up if I remember correctly) can use the additional RAM to speed up disk copying.

As for software development, I'm not sure whether the ORCA environments used the additional RAM or not. Apple Pascal 1.3 seems to be limited to 128k.

In ProDOS, the additional RAM may be useable as a RAM disk, as volume /RAM in slot 3 drive 2. ZBasic uses the /RAM volume to speed up development by preloading everything to the RAM disk.
 
IIRC unpatched ProDOS will only use first 64k as RAM Disk. I don't believe ORCA make use of extra RAM at all. AE includes SW development notes in their documentation for their RAMworks, as also Checkmate for their MultiRAM. Both of which should be available as PDF online (somewhere, google is your friend.)
 
Hi
I'll go back and see if I can find a manual online.
I looked a couple years back but there is a lot of new stuff.
I don't expect DOS to use it as RAM drive. I'd use it
in my code a data buffers.
Dwight
 
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