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

To: Trey Jazz <assembly-83@lists.ticalc.org>
Subject: Re: A83: Re: Matrices and Lists...
From: Linus Akesson <lairfight@softhome.net>
Date: Sat, 02 May 1998 12:51:46 +0100
Delivered-To: assembly-83-outgoing@towerguard.unix.edu.sollentuna.se
In-Reply-To: <001a01bd7528$f1ae1020$254103cf@joemama.minot>
Reply-To: assembly-83@lists.ticalc.org


56d = 38h = 111000b, right? And the processor being the same doesn't
necessarily mean that all the calculators
use the same rst routines. Only that rst 0 is startup and rst 38h is interrupt
(in interrupt mode 1).

Linus

On 01-May-98, Trey Jazz wrote:

>hmm rst 56d? u mean rst 56b? it should be rst 38h. all the calculators use
>the same rst commands because they use the same processor

>>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.

References:

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

From: "Trey Jazz" <joemama@minot.com>

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