Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!elroy.jpl.nasa.gov!decwrl!sgi!shinobu!odin!odin.corp.sgi.com!portuesi From: portuesi@tweezers.esd.sgi.com (Michael Portuesi) Newsgroups: comp.sys.atari.8bit Subject: Re: How can I keep Kermit65 from losing Chars? Message-ID: Date: 25 Jan 91 17:18:36 GMT References: <16286@chopin.udel.edu> Sender: news@odin.corp.sgi.com (Net News) Reply-To: portuesi@sgi.com (Michael Portuesi) Organization: Silicon Graphics, Inc., Mtn. View, CA Lines: 34 In-Reply-To: gdtltr@chopin.udel.edu's message of 25 Jan 91 14:48:49 GMT >>>>> On 25 Jan 91 14:48:49 GMT, gdtltr@chopin.udel.edu (root@research.bdi.com (Systems Research Supervisor)) said: > In article rmartin@remus.rutgers.edu (Rich Martin) writes: > => Does anyone know a way (other than > =>clearing the sceen) to keep kermit from losing characters? > I have seen proposed improvements on the scrolling > algorithm which I imagine would speed things up a bit, but I doubt > that it could ever handle a steady stream at 9600 bps. I'll bet that you could make a screen scrolling algorithm that keeps up at 9600 bps by using a custom display list, with every line of text mapped to a different location in memory. Then, to scroll the screen up a line, you merely rewrite the pointers in the display list instead of copying data. The memory holding the line which scrolled off the top of the screen is then used to hold the next line of text at the bottom of the screen. m. -- __ \/ Michael Portuesi Silicon Graphics, Inc. portuesi@sgi.com "Long before one is anything like drunk, the tongue is loosened, and words may slip out which should never have been said. Watch this particularly when it's all girls together. That femimine urge to confide may trick you into repeating what your husband said about the president and the boss's wife and how that had a lot to do with the boss's promotion -- words one of the women present is sure to make you regret some day." --Nina Fischer, "How to Help Your Husband Get Ahead" part of the Amy Vanderbilt Success Program for Women