Re: A83: Re: Matrices and Lists...
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Re: A83: Re: Matrices and Lists...
Hey, the ti-83 processor is a z80 (well an improved version)
-----Original Message-----
From: Linus Akesson <lairfight@softhome.net>
To: Dimitri Hammond <assembly-83@lists.ticalc.org>
Date: Saturday, 2 May 1998 2:41
Subject: Re: A83: Re: Matrices and Lists...
>
>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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