sl@van-bc.UUCP (Stuart Lynne @ SLI) (08/19/86)
>From: YVES (11466) >Subject: RE: 9600 baud terminal emulator (Re: Msg 11381) >Date: 8-AUG-21:18: Telecommunicating > >Yes, you're right: the big screens just have a new Bitmap definition >(address, rowbytes and rectangle). Unfortunately I had to use some >very tricky programming to become that fast and that meant assuming >the size of the screen. However, when Apple comes out with a new size >of screen, I will modify the programs to be compatible with both >(people with MegaScreens STILL have the standard screen if they don't >boot the special disk). This until the Mac becomes fast enough to >handle 19200 baud by itself (I'm thinking 68020). At that time, any >terminal program will do... -- Yves The terminal emulator desk accessory I'm using already runs at close to 19200 without hardware or software flow control. Best throughput I've actually seen is about 1700 chars/sec. Most host systems have trouble keeping up a sustained 19200 (about 1900 chars/sec) output so normally I don't bother to keep Xonn/Xoff flowcontrol turned on. The DA supports a subset of VT100 control codes, XModem file xfer and screen refresh. The bad news is that I don't know when the company that developed it will start to market it. Old (not Mac+) speeds where about 20% slower -- 1400 chars/sec. To follow Yves reasoning we should be able to handle 38400 or 57600 with 68020. Of course I may have to beef up my Unix box a little bit (:-). Stuart Lynne ihnp4!alberta!ubc-vi!van-bc!sl