[Coco] 64K Coco mode and the MC6883

RETRO Innovations go4retro at go4retro.com
Mon Mar 27 10:11:34 EDT 2023


On 3/27/2023 3:41 AM, Sean Conner via Coco wrote:
> It was thus said that the Great Arthur Flexser via Coco once stated:
>> That is, I think the last part of line 10 should read simply, P=VARPTR(P$)+2
>> (the +2 to access the 3rd byte of the 5-byte string descriptor).
>>
>> I see no need to add that JMP (126) byte.
>    Perhaps I was too cute with the implementation---I copied the method from
>
> 	https://subethasoftware.com/2022/09/16/coco-rom-to-ram-64k-test-part-2/
>
>    My actual Coco is in storage, and I currently don't have ready access to
> the Coco emulator I was using (xroar) for reasons.
>
>    -spc
>
>
Any chance someone in the audience can assist?  6X09 ASM is not my 
strong suit.

Jim

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