Posted By
siz
on 2005-12-09
03:11:35
|  Re: RAM expansion for Plus 4?
There are plenty of software for the 256k RAM expansion, I don't know about the 1Meg version. These expansions work like the +60k on C64: you can switch the actually used 64k of the total memory. And you can select the switch boundary between $1000 and $4000. Memory below the boundary is not switched it's always the same (default) bank so you can place your software and variables there. This is the expansion made by Hannes.
There is an other 256k expansion made by Csory which is compatible with the Hannes one but In this case you can select a 16k RAM bank and switch any 16k slice of the 256k RAM there.
In both expansions you can set the TED to always read the default bank.
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