Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!seismo!uwvax!oddjob!gargoyle!ihnp4!ihwpt!knudsen From: knudsen@ihwpt.ATT.COM (mike knudsen) Newsgroups: comp.sys.m6809 Subject: Re: os9 level II full screen editor Message-ID: <1685@ihwpt.ATT.COM> Date: Mon, 18-May-87 12:54:01 EDT Article-I.D.: ihwpt.1685 Posted: Mon May 18 12:54:01 1987 Date-Received: Tue, 19-May-87 04:38:43 EDT References: <20@abvax.abnet.com> <58400005@gorgo.UUCP> Organization: AT&T Bell Laboratories - Naperville, Illinois Lines: 44 Summary: Hold it! TSEDIT will work on L-II > > One of the minor complaints I have with OS9 level II is the > >lack of a full screen editor. I purchased a copy of tsedit and tsword > >for OS9 level I, but they don't seem to work with level II. Perhaps it > >is because I have configured my system to use the window driver rather > >than the vdu driver. Yep. Must run it in a 32-col screen, which you can always create from a window by setting tmode type=0. Then TSEdit is fine. > > Even if tsedit can be made to work > >under (over?) level II , would it take advantage of the 80 column video > >hardware of the CoCo 3? Nope, still the handmade graphics hard-to-read 64-char screens. > I believe that you are wrongly critical. OS9 Level II is a different operating > system from OS9 Level I. It is only by lucky coincedence that Level I binaries > run under Level II. More often than not level I binaries make assumptions > that the entire address-space of the machine is available, when with hardware > memory management, it is not. No coincidence. Tandy & Mware worked hard to make the hard and sofware compatible. Mware has always kept different levels of OS9 as compatible as possible. Give credit where due. Yes, programs that assume too much in Level 1 will bomb in Level 2, but TSEdit seems to have done only two odd things. First, TSEdit writes directly to the (now "LoRes") graphics page, which was permitted under Level 1 and still supported under L-2. Other thing was POKEing the VDG chip (now GIME) with a hi-contrast color set, which, thanks to Tandy's hardware compatibility, still works (I'm just guessing about this). I doubt that HiRes screen under Frank Hogg's O-Pak would work in L-2, since it patches into CCIO in system space. > I am rather fond of uEmacs which will compile and run quite nicely > under Level II. So am I fond of Emacs. Have you got uEmacs patched for 80x24? User's Group owes me a disk; is 80x24 included yet? > Steve Blasingame (Oklahoma City) > ihnp4!gorgo!bsteve -- Mike J Knudsen ...ihnp4!ihwpt!knudsen Bell Labs(AT&T) Delphi: RAGTIMER CIS: "Just say NO to MS-DOS!"