Xref: utzoo comp.os.vms:3943 comp.editors:50 Path: utzoo!mnetor!uunet!lll-winken!lll-lcc!pyramid!voder!blia!ted From: ted@blia.BLI.COM (Ted Marshall) Newsgroups: comp.os.vms,comp.editors Subject: Re: VT100 confused by TPU Message-ID: <3785@blia.BLI.COM> Date: 26 Dec 87 05:05:12 GMT References: <2080@charon.unm.edu> <3778@blia.BLI.COM> <2109@charon.unm.edu> Distribution: na Organization: Britton Lee, Los Gatos, CA Lines: 21 Keywords: VMS TPU vt100 firmware confusion Summary: what soft-scroll is. In article <2109@charon.unm.edu>, sdowdy@charon.unm.edu (Stephen Dowdy) writes: > Exactly what are you referring to when you say "soft-scroll"? I'm not > aware of a distinction of soft or hard or no scroll for the vt100 series. The DEC VT-100, 200 and 300 families all have two user-selectable scrolling modes, jump and soft scroll. Jump scroll is the "traditional" CRT scrolling mode: when the terminal receives the LF, it immediately moves the text on the screen up on character line. Soft scroll causes the terminal to smoothly scroll the new line onto the screen, one raster line at a time, at a fairly slow rate (it uses flow control to slow the output from the CPU, if necessary). The effect, when the CPU is steadily sending text, is that the screen slowly and smoothly scrolls up the text, like the credits at the end of many movies. The two modes are selectable from Set-Up. I don't remember how VT-100 set-up works so I can't give you specifics. P.S. Merry Christmas, everyone. -- Ted Marshall ...!ucbvax!mtxinu!blia!ted mtxinu!blia!ted@Berkeley.EDU Britton Lee, Inc., 14600 Winchester Blvd, Los Gatos, Ca 95030 (408)378-7000 The opinions expressed above are those of the poster and not his employer.