[Coco] Michael Kline: Let me introduce myself...

[L. Curtis Boyle]

Native mode changes the way IRQ’s work (to preserve the new W register), so things that depend on these require patches).  NitrOS-9 level 1 is patched with native mode , and the current builds should have some 6309 specific optimization scores things like scrolling and clearing the text and graphics screens, so you will see some speed ups. 

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> On Nov 26, 2018, at 2:31 PM, Bruce W. Calkins <brucewcalkins at charter.net> wrote:Eric
> 
> Native mode?  The 6309 works just like a 6809, until it encounters 6309 only instructions.  I don't recall that NitrOS9 for the CoCo 2 used those improvements much if at all.  NitrOS9 for the CoCo 3 has a separate version for the 6309 that uses the extra capabilities well. There is little Disk Basic (RS-DOS) programing that uses the 6309's improvements.
> Bruce W.
> 
> 
> 
>> On 11/26/2018 02:41 PM, Michael Kline via Coco wrote:
>> Hi Robert,
>> Ok. I found them last night in CC Archive. I tried a couple of emulators (don't remember which ones). Some were not compatible with Windows 10, 64 bit.
>> Mostly, I skimmed through some Rainbows, after I got the lot downloaded.
>> My CoCo 2 arrives Thursday. I'm very excited. This unit has the Hitachi 63C09EP CPU. I'm anxious to take it for a test drive, after reading some of papers about it.
>> I am wondering if anyone knows of a way to put it into "Native Mode"? Is there a poke to do this?
>> Sent from Yahoo Mail on Android
>> M
>