A85: IY flags

To: Assembly-85 Mailing List <assembly-85@lists.ticalc.org>
Subject: A85: IY flags
From: Dark Ryder <DarkRyder@cyberdude.com>
Date: Thu, 20 Aug 1998 21:10:39 -0700
Delivered-To: assembly-85-outgoing@towerguard.unix.edu.sollentuna.se
Organization: House of Fish Enterprises
Reply-To: assembly-85@lists.ticalc.org


Well, I'm trying to port an 85 program to the 86 (it's a surprise, for now!),
but I've hit a little snag - it contains the following snippet of code:

 set 3,(iy+5)
 ld hl,TimerInt
 call INT_INSTALL

Now, I figured out the interrupt (I think), but I can't figure out what bit 3 of
iy+5 is supposed to do.  On the 86, it sets D_ZT_STR and D_ZM_STR to inverse,
but this program doesn't use inverse.  Anybody know what it _does_ do?  Maybe
something with the interrupt?

-- 
Dark Ryder
ICQ#:     8189903
E-Mail:   DarkRyder@cyberdude.com

Happiness is inversely proportional to how much you want to upgrade your
computer.

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RE: A85: IY flags

From: "Ahmed El-Helw" <ahmedre@bellsouth.net>

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