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

Dave Philipsen dave at davebiz.com
Wed Dec 27 21:03:13 EST 2017

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 


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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