mwm@VIOLET.BERKELEY.EDU.UUCP (02/13/87)
------- Forwarded Message From: bill@tifsie.UUCP (Bill Stoltz) Newsgroups: mod.computers.68k Subject: OS9 Questions (was Re: Minix/68k) Summary: questions about OS9 Message-ID: <311@tifsie.UUCP> Date: 13 Feb 87 05:58:02 GMT Article-I.D.: tifsie.311 Posted: Thu Feb 12 23:58:02 1987 References: <8702081739.AA11278@gorgo.att.com> Organization: TI Process Automation Center, Dallas Lines: 29 Steve Blasingame gave a lot of information about OS9, but he left me with a few unanswered questions. If every process is position independent then is every process limited to 64K bytes? In order to be position independent you have to use PC relative code. PC relative, from what I have been able to find, is +-32K bytes. Obviously, programs can be greater than 64k but all references must be within 32k. How does OS9 handle this? What does OS9 use to try to protect other processes or kernel memory from the currently running process, without the use of an MMU? Where can I get more information on OS9? (General Overview and some internal workings like we have discussed here)? - ----------------- Bill Stoltz Texas Instruments Process Automation Center P.O. Box 655012, M/S 3635 Dallas, TX 75243 UUCP: {uiucdcs!convex!smu, {rice, sun!texsun}!ti-csl}!tifsie!bill DECNET: TIFSIE::bill Voice: (214) 995-2786 ------- End of Forwarded Message