Path: utzoo!attcan!uunet!husc6!mailrus!purdue!decwrl!ucbvax!UCONNVM.BITNET!SEWALL From: SEWALL@UCONNVM.BITNET (Murph Sewall) Newsgroups: comp.sys.apple Subject: Re: scrolling on unenhanced //e Message-ID: <8806200906.aa14483@SMOKE.BRL.ARPA> Date: 20 Jun 88 13:42:42 GMT References: Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 40 >Jim Elliot (steinmetz!glacier!elliott@itsgw.rpi.edu) writes: >>That seems a very strange reason to get enhanced... No decent terminal >>program would lose characters while scrolling! > >Duane Wessels writes: >>Thats what I thought! Unfortunately, its not up to the termial >>program. I tried several and they all had that problem. The problem >>was definately in the ROMS that I had. [...] > >Well, all "several" of those terminal programs are the kind Jim >would call "indecent." There no reason a terminal program can't do >the scrolling itself, instead of letting the ROM do it badly [in the >case of the unenhanced //e]. Many terminal programs do handle >scrolling themselves, including Jim's favorite one (which I'm sure >he will tell the net about in due time). One of the terminal programs that does have some difficulty with the //e's unenhanced ROM is Kermit-65. Because Kermit is designed to work with ANY Apple 2 using ANY 80-column card, it lets the ROMs do the screen scrolling (thereby not having to provide separate drivers for every 80-column card). My experience is that SET FLOW XON solves the problem when talking to a host that supports XON/XOFF (Kermit will send XOFF before scrolling the screen followed by XON when it's done), but there ARE problems communicating with BBS's which do not support XON/XOFF flow control (some BBS's, in fact, do bizarre things on receipt of unexpected XON's). I learned about that particular original //e ROM bug reading Don Elton's comments on this list. Since TIC supports only Super Serial Card (or close clone) or IIgs internal port, I assume the ROM doesn't do the scrolling and TIC doesn't lose characters on the unenhanced //e, but I've not tested that. --------------------- Disclaimer: The "look and feel" of this message is exclusively MINE! (subject to change without notice; void where prohibited) ARPA: sewall%uconnvm.bitnet@mitvma.mit.edu Murphy A. Sewall BITNET: SEWALL@UCONNVM School of Business Admin. UUCP: ...ihnp4!psuvax1!UCONNVM.BITNET!SEWALL University of Connecticut