[Coco] reset behavior suggestions?

[Arthur Flexser]

For my 2 cents worth, I think the best option would be to use a key
being held down (spacebar, ctrl, shift?) while reset is pressed to
give you one type of reset, versus reset alone to give the other.  I
don't think having to press two things is that big of a deal, and it
requires zero hardware changes and should be very simple to implement
in the reset routine, much like the CoCo 3 reset that allows for an
artifact color switch in composite mode if F2 is being held down.

Art

On Sun, Nov 13, 2016 at 1:29 AM, RETRO Innovations
<go4retro at go4retro.com> wrote:
> I have one more user interface question for folks, if interested.
>
> Designs that try to emulate a cartridge seem to need two "reset" options...
>
> a) a reset that essentially starts the existing game/app/utility over.  One
> can use this to quickly restart the current app, or reset the game hoping
> that the right color scheme shows on the screen
> (http://www.coco3.com/community/2006/01/tech-question-color-artifacts/)
>
> b) a reset that resets the master system, loading the menu app from disk or
> ROM again, essentially, start from the beginning.
>
> My initial idea was that A and B would be distinguished by how long one held
> the reset button.  short press and release: A.  2s+ reset: B
>
> But, that requires a "huge" counter in the design, eating up lots of CPLD
> space. The advantage is only needing to press one button, a button folks are
> already used to pressing.
>
> Another is to put a reset button on the cartridge itself. Simple.  The
> downside is a special purpose button that is only used for reset
>
> A third option is to put a button on the cart that can be used in
> conjunction with reset to signify which reset the user wants. This means the
> button can have other uses, but it then requires 2 things be pressed to
> denote a secondary reset.
>
> There may be other options, not sure.
>
> Thoughts?
>
> Darren, Zippster, others: what method do you use in your designs?
>
> Jim
>
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