Re: A83: Re: Matrices and Lists...
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Re: A83: Re: Matrices and Lists...
I find the rom calls easy aswell. That is, the documented rom calls. But there
are lots and lots of other rom calls that only the guys at ti know of... and
those we can all get to know by trying and sharing our experiences.
Linus
On 04-May-98, Conway wrote:
>Actually, I myself, find the rom calls easy, but some of the z80 language is
>alien to me. But that's mainly due to me not having too much experience with
>programming with other lower level languages. (and Yes I should get off my
>butt to learn the z80 language, but at the moment I don't have the time).
>But that's just me.
>From Conway
>-----Original Message-----
>From: Linus Akesson <lairfight@softhome.net>
>To: Conway <assembly-83@lists.ticalc.org>
>Date: Sunday, 3 May 1998 23:09
>Subject: Re: A83: Re: Matrices and Lists...
>>
>>Yes, I know. But there are complete manuals for the z80 available on the
>>internet aswell as libraries and directly from SGS. The TI-83 ROM is
>however
>>not documented (well, some basic functions are public, but most interesting
>>routines are hardly documented). That means there's a need for some sort of
>>information exchange, like a mailing list. But everyone should be able to
>RTFM
>>for the z80!!
>>
>>Linus
>>
>>On 02-May-98, Conway wrote:
>>
>>>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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