Re: A86: Template Calls?

To: assembly-86@lists.ticalc.org
Subject: Re: A86: Template Calls?
From: Grams Family <grams@netcarrier.com>
Date: Sun, 22 Feb 1998 08:47:01
In-Reply-To: <34EE06B5.FB5D4A8@mindspring.com>
References: <34ED9CC2.MD-0.196.Doggett@zetnet.co.uk> <34EDE778.ACF2D0D1@eden.rutgers.edu>
Reply-To: assembly-86@lists.ticalc.org


At 05:41 PM 2/20/98 -0500, you wrote:
>
>Some time ago, in response to a question about finding calls, someone
mentioned
>something about a "template call" to $28CB, followed by 3 bytes,
describing the >ASIC address and the ROM page.  Could someone please
explain what this does 
>or how (or if there is any reason) to use it?
>
Sure. If you do a call $28cb, the three bytes following are the rom page
followed by the ASIC address. The routine will then return, not to after
the call $28cb, but to where that was called from. So the usual procedure
in the rom is to call to a call $28cb instruction on ROM page 0. There's
also one that is similar, but doesn't return. I can't remember the address
for that off the top of my head, but it's right next to the one at $28cb.

--Joshua

References:

Re: A86: Customizable Stuff

From: "A Doggett" <Doggett@zetnet.co.uk>

Re: A86: Customizable Stuff

From: Dux Gregis <assets@eden.rutgers.edu>

A86: Template Calls?

From: Stephen Hicks <shicks@MindSpring.Com>

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