Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!uunet!munnari!mimir!wacsvax!frank
From: frank@wacsvax.OZ (Frank O'Connor)
Newsgroups: comp.unix.wizards
Subject: Re: vi tips- summary number one
Message-ID: <667@wacsvax.OZ>
Date: Wed, 23-Sep-87 06:45:31 EDT
Article-I.D.: wacsvax.667
Posted: Wed Sep 23 06:45:31 1987
Date-Received: Sat, 26-Sep-87 10:55:51 EDT
References: <601@augusta.UUCP>
Reply-To: frank@wacsvax.uwa.oz.OZ (Frank O'Connor)
Organization: Comp Sci, University of Western Australia
Lines: 10
Keywords: vi tips
Summary: use of ^d and ^u

The vi we use on SysVr2.0 on a PDP 11/73 used to scroll a full page contrary
to the manual and accepted practice. So, I got into the code to fix it. What
I found was that the command <number>^d or <number>^u (e.g. 4^d) scrolled
down 4 lines, and that all subsequent uses of ^d and ^u then scrolled 4 lines.
Is this documented?

Anyway, to fix the problem I also looked at our 4.3BSD sources which are very
different. It does the correct thing of setting the default to half the screen
length. Other versions explicitly set it to a number (e.g. 11, 12, 24). What
does your ^d and ^u do?