darin@tmq.UUCP (Darin Adler) (05/13/85)
> > Writing a resume procedure is no mean feat. Since exit to finder > doesn't rebuild the system heap from scratch your takings some risks in > letting the finder attack on your disks at that point. Consider what > happens if it rewrites a disk's directory without checking that the > directory is absolutly pure and noble, bye bye data ... > ... My only use of this feature is to get some oportunity to look at > things prior to the machine rebooting. I have used resume procedures that allow a "Save and Quit" or "Quit" option (similar to the ones in MacWrite). It is true that the system heap may be mangled ... maybe a warning to the user is in order. I have not had trouble using a resume procedure - I have resumed many time without noticing ill effects, so I think that destruction of the system heap is fairly rare. Darin Adler ihnp4!tmq!darin
robw@dartvax.UUCP (Robert H. Wills) (05/16/85)
Further to the question of resumption: Why does the mac run entirely in supervisor mode? Surely the state of the OS could be better preserved if applications ran in 68000 user mode.. Of course, to do it properly, you need memory management, as in the Lisa or later 680x0 chips. Rob Wills Thayer School of Engineering Dartmouth College (robw@dartmouth)