Re: A83: Re: Matrices and Lists...

To: Dimitri Hammond <assembly-83@lists.ticalc.org>
Subject: Re: A83: Re: Matrices and Lists...
From: Linus Akesson <lairfight@softhome.net>
Date: Wed, 29 Apr 1998 18:41:40 +0100
Delivered-To: assembly-83-outgoing@towerguard.unix.edu.sollentuna.se
In-Reply-To: <Pine.LNX.3.96.980428230104.2767C-100000@bach.dynet.com>
Reply-To: assembly-83@lists.ticalc.org

On 29-Apr-98, Dimitri Hammond wrote:

>Hey, hey, what exactly does rst do, NEway?

>-Dimitri

Oh please! I thought this list was for programming the ti-83, not the z80...
RST means restart, but it isn't a good name. It can jump to some predefined
addresses (f.ex. 0000, don't remember the others), and the whole instruction
is only one byte long. This makes it somewhat easier in interrupt mode 0,
where the interrupting device places an instruction on the data bus. RST 0
would reset the calculator, since this is where the processor will go when you
power it on (new batteries). RST 56d is used in interrupt mode 1 (which the
ti-83 uses) for all interrupts.

Linus

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