Path: utzoo!attcan!uunet!husc6!think!ames!amdahl!apple!dan From: dan@Apple.COM (Dan Allen) Newsgroups: comp.sys.mac.programmer Subject: Re: DA question Message-ID: <11388@apple.Apple.Com> Date: 1 Jun 88 04:02:13 GMT References: <2896@thorin.cs.unc.edu> Reply-To: dan@apple.UUCP (Dan Allen) Organization: Apple Computer Inc, Cupertino, CA Lines: 20 About DAs of the 70K size, written in MPW Pascal... DAs do not have their own A5 World, ordinarily. This means no global data, no jump data (no code segments), and no own QuickDraw globals, among other things. If a desk accessory can save and restore A5 then these problems would go away. As I have mentioned in this forum previously, this was actually under consideration here at Apple, but had problems. The party line today is to not write DAs that big: just write an application which **does** have its own A5 World, and use MultiFinder! If this very simple solution to the problem (or sidestepping of the problem) is not adequate, please tell me more. We'd like to do what we can in solving developer's problems. Dan Allen Software Explorer Apple Computer