AWCTTYPA@UIAMVS.BITNET ("David A. Lyons") (04/12/88)
>Date: Sat, 9 Apr 88 02:24:37 GMT >Reply-To: Info-Apple@BRL.ARPA >From: David Douthitt <geowhiz!uwspan!circle!rat@speedy.cs.wisc.edu> >Subject: Re: Prodos on II/II+ > >[...] >There is a common misconception that Prodos does not run on II+'s. >Prodos works JUST FINE on a II+... it is the extensions to BASIC that >don't work. Thus, you can operate SOME programs on an Apple II+ in >Prodos (Kyan Pascal + KIX is a good example). > >In short -- > PRODOS.SYSTEM ----- works > BASIC.SYSTEM ----- fails > APW.SYSTEM ----- fails (appleworks) Wrong! BASIC.SYSTEM works just fine on the II+. AppleWorks can be made to work on the II+ if you buy PlusWorks (Norwich Data Systems??)--I think Applied Engineering also has AppleWorks-on-the-II+ patch software. *Lots* of ProDOS stuff works on the II+. For example: many of the ProSEL utils utilities, EDASM, Merlin/BigMac (*not* Merlin Pro), FreeWriter, FredWriter, Bag of Tricks II (I think), and the Davex environment (a command shell + growing number of utilities [by yours truly]). >By the way, be aware that a bug in PRODOS makes it trash the disk (NOT >NICE!) There is a fix, but I don't have it -- its a *BUG* ... Correct me if I'm wrong, but that applies only to 5.25 drives and was never tracked down for sure. Open-Apple came up with a perfectly believable explanation of the problem, but I don't think they convinced Apple to make their patch to ProDOS. As I recall, the problem resulted only when you got unlucky booting a 5.25 drive *and* you had an older power supply. > David Douthitt > rat@circle --David A. Lyons a.k.a. DAL Systems PO Box 287 | North Liberty, IA 52317 BITNET: AWCTTYPA@UIAMVS CompuServe: 72177,3233 GEnie mail: D.LYONS2
gwyn@brl-smoke.ARPA (Doug Gwyn ) (04/12/88)
In article <8804120159.aa03521@SMOKE.BRL.ARPA> AWCTTYPA@UIAMVS.BITNET ("David A. Lyons") writes: >Correct me if I'm wrong, but that applies only to 5.25 drives and was >never tracked down for sure. Open-Apple came up with a perfectly >believable explanation of the problem, but I don't think they convinced >Apple to make their patch to ProDOS. As I recall, the problem resulted >only when you got unlucky booting a 5.25 drive *and* you had an older power >supply. No, that was a bogus diagnostic. The actual culprit was a bug in ProDOS that left the disk electronics in write mode at an inappropriate time. The most recent release of ProDOS appears to have fixed this.