Re: A86: Re: new emulator


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Re: A86: Re: new emulator




Actually, it depends on the Palm.  Where I work, all the people in my Dept. 
have a Palm, one of each version, I to VII.  The first 3 (I think) uses the 
z80, the next 3 (I think) use the m68K, and the Palm VII uses an old x86 (I 
think)...

Glen
tutorial1.cjb.net

In a message dated 12/21/99 8:24:48 PM Eastern Standard Time, 
littlbit@txcyber.com writes:

<< 
 I thought it was a m68k?  That's what I've heard.
 
 Eric Greening
 -----Original Message-----
 From: Kirk Meyer <kirkmeyer@bigfoot.com>
 To: assembly-86@lists.ticalc.org <assembly-86@lists.ticalc.org>
 Date: Tuesday, December 21, 1999 5:19 PM
 Subject: 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. 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)...
 >
 >----- 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!   */
 >> >>