Re: A89: Re: Re: ROM v1.0
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Re: A89: Re: Re: ROM v1.0
but you see, the first reasons you gave are precicely why the 2 systems
differ. the input/output systems are different, thus making it impossible
to use roms from one for the other. in the roms are what deals with the
various i/o systems, and if they are different, you cant use the same rom.
the calualtors are very much the same, from a programmers point of view, and
even more so from a user's point of view, but they are actually different.
--kaus
----- Original Message -----
From: Brad O'Dell <brodell@gte.net>
To: <assembly-89@lists.ticalc.org>
Sent: Friday, August 06, 1999 7:08 PM
Subject: Re: A89: Re: Re: ROM v1.0
>
> It is my understanding that:
>
> 1) The displays are the same on each calc, except that the TI-89's is
physically
> smaller and has fewer pixels. The display file size is the same on both
for
> compatability (3840 bytes), with parts unused for the TI-89.
>
> 2) The keyboards are very likely to be layed out differently
electronically to
> reflect the different physical layouts..
>
> 3) The TI-92 and plus use 2M*16 flash, while the TI-89 uses only 1M*16
flash.
> This would account for the presence of more built-in functions in the
TI-92 plus
> (like geometry apps.) and more archive memory in the TI-89.
>
> 4) Besides all of this, the systems should be identical because they both
use
> the exact same CPU chip.
>
> Kaus wrote:
>
> > it does mean a dang thing, cause the ti-89 and ti-92+ are completely
> > different systems. it would be like puting your hard drive from a pc
into a
> > mac. isnt going to work.
> >
> > the ti-89 has different keypad and screen, and so the rom code to handle
> > these is different. if you tried to install the rom from a ti-89 into a
> > ti-92+, first of all, it wouldnt let you, because it knows the
difference
> > between a ti-89 and a ti-92+ rom, and 2nd of all, your screen would be
> > completely messed up and you wouldnt be able to type anything. in
effect,
> > _don't do it!_
> >
> > --kaus
> >
> > ----- Original Message -----
> > From: <ZeromusMog@aol.com>
> > To: <assembly-89@lists.ticalc.org>
> > Sent: Friday, August 06, 1999 2:08 PM
> > Subject: Re: A89: Re: Re: ROM v1.0
> >
> > >
> > > In a message dated 8/6/99 10:36:51 AM Pacific Daylight Time,
> > > zach@operamail.com writes:
> > >
> > > > They couldn't use each other's ROMs because the 92+ has the geometry
> > > software,
> > > >
> > > > which is part of the ROM, but the 89 doesn't.
> > > That doesn't mean a dang thing. ^_^
> > > Just because my computer isn't running Adobe Photoshop and some other
> > guy's
> > > isn't doesn't mean that his hard drive wouldn't work on my computer.
:)
> > >
>
>
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