RE: A86: Re: new emulator
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RE: A86: Re: new emulator
> Oi! That's different! =)
>
> Isn't the processor in the Palm III a Z80? (I thought it was.) If
> it is, why
> are you working on an emulator? All you would need to do is
> handle the ports
> (i.e., lcd, keyboard). Now of course I may be wrong, it may just be the
> original Palm Pilot that had a Z80.
Sorry to disappoint you all, but *all* the Palm's has m68k's. - I can run
programs written for the PalmPilot (Palm I) or PalmPilot Pro (Palm II) just
as well on my Palm III.
PalmV is exactly the same as a 2MB Palm III, just with a different (and much
nicer) case and biult-in LiIon batteries (my dad has one).
The Palm VII I'm not too sure about, but I'm willing to bet it's a m68k as
well.
> In any case, how are you testing your
> Z80 core on the computer when the computer has an x86? If Palm
> III has x86,
> I wrote a Z80 core in pure asm that you can look at (if nothing else, for
> comparison)...
Well, the core's in C atm, but it can be translated to m68k assembler as
soon as I figure out how to do inline assembler for gcc :) (anyone want to
help me? email me at liyang at altavista dot net) The core's currently a
win32 console app, I might do a gui for it with Allegro, get the keyboard
and any other misc bits working, then start working on porting it over to
the Palm.
> ----- Original Message -----
> From: Liyang Hu <liyang@liyang.freeserve.co.uk>
> To: TI-Emu ML <ti-emulator@lists.ticalc.org>; TI-86 Asm ML
> <assembly-86@lists.ticalc.org>
> Sent: Tuesday, December 21, 1999 2:07 PM
> Subject: RE: A86: Re: new emulator
>
>
> > Oh well, I might as well tell you about it - I'm writing the emu for my
> Palm
> > III.
> > I think I have most of the core logic bits done (On the PC,
> that is. It'll
> > be ported over to the Palm as soon as I figure out how the keyboard
> works),
> > but I have problems implementing the keyboard handler - I'm
> using TI86Emu
> > (the one written in C++ builder) as my only debugging tool / reference.
> Note
> > however that I do not want a cycle-perfect emulation of the core, I want
> it
> > to be as fast as possible. My problem is this - my Z80 core
> deviates from
> > TI86Emu whenever I'm going through the keyboard code (although that's
> kinda
> > expected), but the keyboard handling stuff isnt quite working. I'm not
> > really sure if it's my handler code or whether I'm misimplementing some
> > opcode somewhere... I was hoping for something that will test the Z80
> core,
> > not my keyboard handler :)
> >
> > nb: the emu works to the point where I have a flashing cursor sitting
> there
> > at the home screen... if only the keyboard works...
> > --
> > /*\-------------------------. .----------------------------.
> > | Liyang Hu aka DenseBoy \ / __pikachu ICQ # 39391385 \
> > | http://www.nerv.cx/ | <denseboy@41t4v!5t4.n3t> |
> > +------------------------------+--------------------------------+
> > | The subspace W inherits the other 8 properties of V. |
> > | And there aren't even any property taxes. |
> > | -- J. MacKay, Mathematics 134b |
> > | -----------------------------------------------------------/
> > \*/ /* get my public key at http://www.nerv.cx/liyang.asc */
> > /* decode the l33t-speak in my address to email me! */
> >
> >
>
>
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