Re: A86: Re: new emulator

To: <assembly-86@lists.ticalc.org>
Subject: Re: A86: Re: new emulator
From: "Eric Greening" <littlbit@txcyber.com>
Date: Tue, 21 Dec 1999 19:28:44 -0800
Reply-To: assembly-86@lists.ticalc.org

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!   */
>>
>>
>
>
>