Re: 1 bit wide raster-ops

Article View: fa.bitgraph

Article #4

From: utzoodecvaxucbvaxC70bitgraph
Date: Mon, 09 Aug 1982 06:36

17 lines
947 bytes

>From rwf@BBN-UNIX Mon Aug  9 06:36:07 1982
Mark,

Sorry to take so long to get back to your question; I was on
vacation.  I'm afraid it is true there is a bug in RASTOP
concerning one wide moves.  The more complete picture is
that when the source is to the LEFT of the destination,
rastop tranfers (width - 1) columns instead of (width)
columns.  A side effect of this bug is that when the width
specified is 1, the column counter counts through 16 bits
worth of columns, crashing the terminal when it touches
illegal memory.

The problem has been fixed here at BBN, and will be
available with the next software release.

Rich

Technical Details

Message-ID: <bnews.ucb.1730>

Path: arc1-ca.pugleaf.net!unknown!not-for-mail

Show Full Headers

Complete Article Headers

From: utzoo!decvax!ucbvax!C70:bitgraph
Newsgroups: fa.bitgraph
Title: Re:  1 bit wide raster-ops
Article-I.D.: ucb.1730
Posted: Mon Aug  9 06:36:23 1982
Received: Tue Aug 10 00:57:49 1982
Subject: Re:  1 bit wide raster-ops
Date: Mon, 09 Aug 1982 06:36:23 +0000
Message-ID: <bnews.ucb.1730>