[A83] TI-OS shutdown

To: assembly-83@lists.ticalc.org
Subject: [A83] TI-OS shutdown
From: "SUCKER from the old days" <sucker_pvn@hotmail.com>
Date: Sat, 08 Dec 2001 17:43:22 +0000
Reply-To: assembly-83@lists.ticalc.org


Somebody knows (or has the location) of some TI-OS shutdown
code? I'm having trouble with my interrupt program.
First of all, the way I check for 2nd + off doesn't seem
to work. (Ti-83(-))

bit shift2nd,(iy+shiftflags)
jr z,resume
bit oninterrupt,(iy+onflags)
jr z,resume

ld a,1
out (3),a
ei
halt
di
jr exit_interrupt

resume:
;...


And secondly, this way of shutting the calc down inside
an interrupt does shut the calc down, but I have to
press 2 times on <ON>. The screen flashes when I press
<ON>, but it shuts down again. Then I press it again
and finally it goes to the home screen.
Some help here??

       SUCKER

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Follow-Ups:

[A83] Re: TI-OS shutdown

From: Patai Gergely <patai.ti@freemail.hu>