Re: TI-H: What's wrong with hw2?
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Re: TI-H: What's wrong with hw2?
2 advantages:
More archive space for apps w/ams 2.0x(702k shared, whereas hw1 is ~351/351
apps/flash apps)
2mhz faster than hw1(now that makes a difference! </sarc>)
disadvantages are too overwhelming to list all
No Greyscale
Will have some serious problems if you try to hack it.
Compatability with games, umm where is it?
and the list goes on
-Dan
thedew@usit.net
----- Original Message -----
From: "Noah R Deneau" <noahd@juno.com>
To: <ti-hardware@lists.ticalc.org>
Sent: Wednesday, December 15, 1999 9:51 PM
Subject: Re: TI-H: What's wrong with hw2?
>
> Does anyone know, are there any advantages or beneficial changes in HW2?
>
> -Noah
>
> On Thu, 16 Dec 1999 03:51:16 +0100 Olle Hedman <oh@hem.passagen.se>
> writes:
> >
> > hehe.. And how would they change the assembly syntax?
> > It isn't ti who made that up you know, it is how the cpu in it
> > works, and that
> > is made by motorola and has been the same since 1984.
> > What has changed is certain things in the peripherial circuits in
> > the ti89. The
> > chips that handle rom-protection and lcd updateing for example.
> > The big problem with grayscale is that in hw1 you could have the
> > screen-ram at
> > any memoryposition (almost, a stepping by 8), but in hw2 you can
> > only have it at
> > certain memorypositions. (I don't remember the exact ones now) and
> > they have
> > also changed how the updateing of the screen works, makeing it quite
> > a lot
> > slower.
> > Have you btw any idea at all how things like grayscale work on the
> > calcs? Do you
> > even know how a microprocessorsystem like the ti89 works? It doesn't
> > sound like
> > that on you guessings. Or maybe I just misunderstand what you are
> > saying.
> >
> > file://Olle
> >
> > Jefferson Chang wrote:
> > >
> > > Hi,
> > >
> > > I heard that most of the people complain about hw2 for not being
> > able to
> > > run
> > > most of the games. Hmmm.... I'm wondering maybe TI has modified
> > the
> > > implemenation of the assembly coding for TI-89 (hw2) instead of
> > disable
> > > some of
> > > the great features that the hw1 had (like grayscale?). If think
> > about
> > > it, why do
> > > they need to disable those features in hw2? It brings no benefit
> > for
> > > them don't
> > > you think so? Maybe the assembly syntax coding for hw2 is slightly
> > > different in
> > > order to make those missing features work (grayscale for example).
> > Just
> > > my
> > > opinion ^_^
> > >
> > > Thanks.
> >
>
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