[Coco] 512K AND Beyond??? How FAR Beyond???

[Allen Huffman]

I’ll be posting the Sub-Etha Software MultiBASIC product in the near future. It was a simple and clever way to make use of more than 32K in BASIC. I don’t have the source, but I doubt there was too much code to it so reverse engineering it should be doable. Maybe we can make it a tool for all these BASIC programmers who want to write big programs on their machine, 128K, 512K or beyond if we can update MBASIC.

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> On Dec 27, 2017, at 8:03 PM, Dave Philipsen <dave at davebiz.com> wrote:
> 
> Actually, if you expanded to 1 or 2 megs with a method that used the MMU registers $FFA0-AF then you could access that memory from BASIC with a pretty simple patch since the LPEEK, LPOKE, and other commands were already designed to access up to 512K. Of course the BASIC program itself is still limited to the area below 32K without major modifications.  Other relatively simple patches could open up other possibilities.
> 
> 
> Dave
> 
> 
>> On 12/26/2017 11:23 PM, Joe Schutts via Coco wrote:
>> Another related question. If you have a 1 or 2 Meg system, is that memory even accessible from Basic or does accessing it require OS-9 only (or NitroOS-9)???
>> 
> 
> 
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