Re: A86: very very odd


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Re: A86: very very odd




That's half right and half wrong.  As far as the ROM, you don't need to know
how it works - BUT you do need to know how the ports work, since they are
specific to certain devices.  On the 86 for instance, you need to know port
0 for the screen, port 1 for keypresses, port 7 for the link, port 3 for
power status, ports 5 and 6 for ROM and RAM pages, port 2 for contrast, etc.
But as far as having to know the ROM any Z80 emulator should work as long as
you can add the functions of each port.

===

Kirk Meyer
_@ibm.net

-----Original Message-----
From: Trey Jazz <joemama@minot.com>
To: assembly-86@lists.ticalc.org <assembly-86@lists.ticalc.org>
Date: Monday, February 16, 1998 8:17 PM
Subject: Re: A86: very very odd


|
|thats so false. you need to know how the key routines, screen routines,
etc.
|work in order to make an emulator and you cant just put a rom in a
directory
|and tell your so-called-emulator there it is work with it and dont ask me
|what to do.
|
|-----Original Message-----
|From: Trent Lillehaugen <tllilleh@polymail.cpunix.calpoly.edu>
|To: assembly-86@lists.ticalc.org <assembly-86@lists.ticalc.org>
|Date: Monday, February 16, 1998 9:19 PM
|Subject: Re: A86: very very odd
|
|
|>
|>> was that sarcasm or were u being serious? i think its very important
that
|>> you know how exactly to work with the rom when you make an emulator so
|you
|>> know how to put in keyboard routines in,etc.
|>
|>    All an emulator does is emulate the HARDWARE.  You take a rom dump and
|use
|>that, you don't need to know how ANY of the software works.
|>
|>--
|>Trent Lillehaugen
|>Computer Engineering Major
|>California Polytechnic University, San Luis Obispo
|><http://www.calpoly.edu/~tllilleh/a86/a86.html>
|><mailto:tllilleh@polymail.calpoly.edu>
|>
|>
|
|


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