[Coco] NitrOS-9 beginner

William Astle lost at l-w.ca
Thu Jul 9 18:43:10 EDT 2015


On 2015-07-09 15:22, Gene Heskett wrote:
> This has memory problems written all over it, probably caused by the high
> speed poke.
>
> If running with the high speed poke, That steals the time normally used
> for d-ram refresh.  Basically the only d-ram being refreshed is the
> d-ram containing that active code.  That memory containing the page
> data, is not being refreshed when that page is switched out.

That is not the case on the Coco3. Barring other issues, a Coco3 is 
reliable in high speed mode. (And that is not an accident - it was 
designed that way.)

Even so, the Triad memory upgrade is worth the price if only because the 
machine runs much cooler.

>
> This might be, check with Mark M., a good place to switch to static ram,
> which should not have that problem. IOW try one of Marks latest 512k
> memory upgrades, that is I believe static memory, and does not need a
> refresh mechanism, so should work well with the high speed poke.



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