Re: A85: Got it to work, but I still have questions...

To: assembly-85@lists.ticalc.org
Subject: Re: A85: Got it to work, but I still have questions...
From: mgp4007@omega.uta.edu (Michael Pearce)
Date: Fri, 15 May 1998 16:14:43 GMT
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In-Reply-To: <3.0.5.32.19980515123140.008527c0@mail.acc.umu.se>
References: <3.0.5.32.19980515012259.007d09b0@mail.acc.umu.se> <3.0.5.32.19980515012259.007d09b0@mail.acc.umu.se> <3.0.5.32.19980515123140.008527c0@mail.acc.umu.se>
Reply-To: assembly-85@lists.ticalc.org


>
>Switching between two video memories is a piece of cake though
>(just OUT a value to a port, don't remember which), and I don't
>believe it's a necessary function in a shell.
>

yep, just one "out" needed.  from ti-ports.txt:

-----------------------------------------------------------------------------
Port 0 : Video Buffer Offset                                     Write
Only
-----------------------------------------------------------------------------
Write
-----
X?......  00-3F: LCD shows memory at 100h*(C0+this value)
          Example: using a value of 3C, the LCD shows the normal
memory, FC00
          Note: The ROM uses 7C, although it appears to give the same
result.

-mike pearce

References:

Re: A85: Got it to work, but I still have questions...

From: Jimmy =?iso-8859-1?Q?M=E5rdell?= <yarin@acc.umu.se>

Re: A85: Got it to work, but I still have questions...

From: Jimmy =?iso-8859-1?Q?M=E5rdell?= <yarin@acc.umu.se>

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