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Groups > comp.sys.apple2.programmer > #1486

Re: Method to address both Legend and Saturn RAM cards

From D Finnigan <dog_cow@macgui.com>
Newsgroups comp.sys.apple2.programmer
Subject Re: Method to address both Legend and Saturn RAM cards
Date 2015-01-19 18:29 +0000
Organization Mac GUI
Message-ID <dog_cow-1421692212@macgui.com> (permalink)
References <dog_cow-1421349003@macgui.com> <crCdnUWW-uNNDCXJnZ2dnUU7-dednZ2d@earthlink.com> <276de793-dd18-47b7-87b7-f9c5f5316798@googlegroups.com> <dog_cow-1421575793@macgui.com> <LuOdne0v5K89iCDJnZ2dnUU7-I-dnZ2d@earthlink.com>

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Anton Treuenfels wrote:
> 
> Uh, not quite. If you store $00 in RAMTYPE, then the AND will set the 
> A-register to zero as well. So this code will never select anything but

I would have gotten it right on the third try. :-)

> 
> That's assuming that the actual value stored from the A-register matters
> for the Legend but only the address written to matters for the Saturn.

Yes.

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Thread

Method to address both Legend and Saturn RAM cards D Finnigan <dog_cow@macgui.com> - 2015-01-15 19:09 +0000
  Re: Method to address both Legend and Saturn RAM cards "Anton Treuenfels" <teamtempest@yahoo.com> - 2015-01-15 22:21 -0600
    Re: Method to address both Legend and Saturn RAM cards gids.rs@sasktel.net - 2015-01-16 09:41 -0800
      Re: Method to address both Legend and Saturn RAM cards D Finnigan <dog_cow@macgui.com> - 2015-01-16 19:08 +0000
      Re: Method to address both Legend and Saturn RAM cards qkumba <peter.ferrie@gmail.com> - 2015-01-17 21:32 -0800
        Re: Method to address both Legend and Saturn RAM cards gids.rs@sasktel.net - 2015-01-17 22:33 -0800
          Re: Method to address both Legend and Saturn RAM cards gids.rs@sasktel.net - 2015-01-17 22:54 -0800
            Re: Method to address both Legend and Saturn RAM cards Leandro Polimeno <leandro.polimeno@gmail.com> - 2015-02-10 04:53 -0800
              Re: Method to address both Legend and Saturn RAM cards gids.rs@sasktel.net - 2015-02-10 21:19 -0800
                Re: Method to address both Legend and Saturn RAM cards Leandro Polimeno <leandro.polimeno@gmail.com> - 2015-02-11 05:22 -0800
          Re: Method to address both Legend and Saturn RAM cards D Finnigan <dog_cow@macgui.com> - 2015-01-18 10:09 +0000
            Re: Method to address both Legend and Saturn RAM cards "Anton Treuenfels" <teamtempest@yahoo.com> - 2015-01-19 08:33 -0600
              Re: Method to address both Legend and Saturn RAM cards D Finnigan <dog_cow@macgui.com> - 2015-01-19 18:29 +0000
              Re: Method to address both Legend and Saturn RAM cards qkumba <peter.ferrie@gmail.com> - 2015-01-20 09:33 -0800
                Re: Method to address both Legend and Saturn RAM cards "Anton Treuenfels" <teamtempest@yahoo.com> - 2015-01-20 17:06 -0600

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