Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!apple!autodesk!catnip!bandy
From: bandy@catnip.berkeley.ca.us (Gun Control is Hitting Your Target)
Newsgroups: comp.os.cpm
Subject: Re: Need WordStar utility
Message-ID: <972@catnip.berkeley.ca.us>
Date: 7 Jan 91 22:06:02 GMT
References: <"14-Dec-90.22:29:05.EST".*.Michael_D._Sprague.wbst311@Xerox.com> <1990Dec21.134239.6515@ms.uky.edu> <3070@mentor.cc.purdue.edu>
Organization: The People's Number Four Cat Farm, Berkeley CA, USA
Lines: 18

wilker@gauss.math.purdue.edu (Clarence Wilkerson) writes:


> Aha! Some versions of WordStar supported direct write to screen
>memory on the (few) machines that had screen memory as part of
>system RAM. I suspect that setting the high bit is the way the
>Osborne knew to highlight the current character.

Yes and no.  

No, WordStar for the Osborne 1 did not come configured for memory mapped
video - I don't know why - it's orders of magnitude faster than going through
a jillion layers of software.

Yes, you could set the underline attribute by or'ing with 0x80.
-- 
real address: bandy@catnip.berkeley.ca.us
last choice:  lll-winken!catnip.berkeley.ca.us!bandy