[Coco] Speech Systems Stereo Pak

RETRO Innovations go4retro at go4retro.com
Tue Oct 20 12:11:02 EDT 2020


On 10/20/2020 9:30 AM, tim lindner wrote:
> On Tue, Oct 20, 2020 at 12:37 AM RETRO Innovations
> <go4retro at go4retro.com> wrote:
>> On 10/19/2020 2:17 PM, tim lindner wrote:
>>> On Sat, Oct 17, 2020 at 8:01 PM RETRO Innovations <go4retro at go4retro.com> wrote:
>>>> This makes sense if the Stereo Pak uses a MC6821 as the means to store
>>>> and output the 8 bit values.
>>> Thanks for this insight.
>>>
>>> https://github.com/mamedev/mame/pull/7371
>>>
>>>
>> Not that I'm a MAME dev, but where do you define that the PIA sits at $ff70?
> The pull request page isn't showing the new files added. There is a
> button to "view files":
>
> https://github.com/mamedev/mame/pull/7371/files/ad6b63e52ad8a1c121bcd9fcf4b90e4c4bbfe18d#diff-bf0a9777c0648f775c7045eab1ba496d3b99117c5463f14cf287dbfb72e6ef84
>
> On that page the memory read/write installer is called in file
> coco_stecomp.cpp , line 56.

Yeah, I was looking at the files (after clicking on the commit ID), but 
I simply missed the constants (must have been late... Yeah, that's it).

Thanks for pointing it out.

Jim




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