Memory Location for Text Screen

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#1604

From: Dave Jenkins
Date: Tue, 18 Oct 1988 21:08

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I need to know how to access the Dec Rainbow's
screen from machine language.  My machine is
the "A" version I think (cannot boot from
hard disk).  Questions are:

Is screen memory mapped?  What are addresses?

Can you send me a sample routine to transfer a
section of memory to the screen using the
8086 processor? 

If screen is not memory mapped, how do I send 
a character to the screen?  Do you know a 
CPM call?  

Thank you. Please send replies to:

                Jay Gabin
                201-615-5359
                att!homxc!gabin 


-- 
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--  Dave Jenkins:  {att}!homxc!dj or (201)-615-5371  --
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!water!watmath!clyde!att!whuts!homxb!homxc!dj
From: dj@homxc.UUCP (Dave Jenkins)
Newsgroups: comp.sys.dec.micro
Subject: Memory Location for Text Screen
Keywords: memory map
Message-ID: <3847@homxc.UUCP>
Date: 18 Oct 88 21:08:33 GMT
Organization: AT&T Bell Laboratories, Holmdel
Lines: 26