[A89] Re: Interrupts

To: assembly-89@lists.ticalc.org
Subject: [A89] Re: Interrupts
From: Olle Hedman <alh@home.se>
Date: Fri, 12 Apr 2002 13:24:55 +0200
In-reply-to: <OE21XzGznsrtS2CXtdK0000ac66@hotmail.com>
References: <005c01c1e1b6$279b4830$6401a8c0@lukeskywalker>
Reply-To: assembly-89@lists.ticalc.org

At 08:43 2002-04-12, you wrote:

>http://tict.ticalc.org/docs/J89hw.txt contains all the 89 HW info you want.
>I do ASM, no C so I just use move,and,or commands to set the ports. BTW, you
>can always read old mailing-list-posts on www.ticalc.org .

In TIGCC you most easily change ports with the peekIO and pokeIO macros.
You can use typecasts and just assign or and or or (no pun intended), but 
if you don't know exactly what you do, there is a chance that the compiler 
optimizes away your change.
and peekIO and pokeIO make the code easy to read too.

///Olle

Follow-Ups:

[A89] Re: Interrupts

From: "Brett Simmers" <bsimmers@attbi.com>

References:

[A89] Interrupts

From: "Brett Simmers" <bsimmers@attbi.com>

[A89] Re: Interrupts

From: "Gijs Leegwater" <g_leegwater@hotmail.com>