sl@van-bc.UUCP (Stuart Lynne @ SLI) (08/13/86)
>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 DA runs out a normal window that is kept at once size to allow 24 lines by 80 chars (9 point Monaco). The screen is redrawn if another window is brought in front and then erased. 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