Re: A86: Re: Re: new emulator

To: <assembly-86@lists.ticalc.org>
Subject: Re: A86: Re: Re: new emulator
From: "Kirk Meyer" <kirkmeyer@bigfoot.com>
Date: Thu, 23 Dec 1999 20:08:42 -0700
References: <LOBBKNMNOBODGNDOAJGLCEADCEAA.liyang@liyang.freeserve.co.uk> <000f01bf4db0$4172f920$913a438a@mines.edu> <3862E317.4AE05C@oregontrail.net>
Reply-To: assembly-86@lists.ticalc.org


No, I mean many times if TI wants to save a single byte, they write that
byte out port 6. Then they can retrieve it with in a,(6). If they don't need
to access RAM, it's like an extra register.

----- Original Message -----
From: Cassady Roop <croop@oregontrail.net>
To: <assembly-86@lists.ticalc.org>
Sent: Thursday, December 23, 1999 8:05 PM
Subject: Re: A86: Re: Re: new emulator


> What do you mean by that?  I'm not understanding something here...  If
> you write something to ROM, doesn't it just go *poof* and disappear?
> How can an unwriteable memory space serve as temporary storage space?
> Or do you mean the actual port, as in maybe a port buffer on the cpu
> that stores the last value that was sent out?

References:

A86: Re: new emulator

From: "Liyang Hu" <liyang@liyang.freeserve.co.uk>

A86: Re: Re: new emulator

From: "Kirk Meyer" <kirkmeyer@bigfoot.com>

Re: A86: Re: Re: new emulator

From: Cassady Roop <croop@oregontrail.net>