Groups > comp.sys.apple2.programmer > #5959

Re: Conflict mouse and mockingboard interrupts on Apple IIgs

Newsgroups	comp.sys.apple2.programmer
Date	2022-02-27 09:03 -0800
References	<0836d721-4c90-4ab7-aa08-738555f40630n@googlegroups.com>
Message-ID	<9202e4e3-2589-4738-a89c-dbfb7b972f1bn@googlegroups.com> (permalink)
Subject	Re: Conflict mouse and mockingboard interrupts on Apple IIgs
From	qkumba <peter.ferrie@gmail.com>

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Yes, read $7F8+mouse slot to determine the interrupt source.
If &8 != 0 then it's VBL
If &4 != 0 then it's a mouse button
if &2 != 0 then it's a mouse move.
If the byte is zero then it wasn't the mouse that triggered.

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Thread

Conflict mouse and mockingboard interrupts on Apple IIgs Marc Golombeck <marc.andre.tichy@googlemail.com> - 2022-02-27 05:27 -0800
  Re: Conflict mouse and mockingboard interrupts on Apple IIgs qkumba <peter.ferrie@gmail.com> - 2022-02-27 09:03 -0800
    Re: Conflict mouse and mockingboard interrupts on Apple IIgs Marc Golombeck <marc.andre.tichy@googlemail.com> - 2022-02-27 14:33 -0800
      Re: Conflict mouse and mockingboard interrupts on Apple IIgs Oliver Schmidt <ol.sc@web.de> - 2022-02-27 23:29 +0000

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