Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!rutgers!ucsd!ucbvax!hplabs!pyramid!cbmvax!jesup
From: jesup@cbmvax.UUCP (Randell Jesup)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Need info on exceptions
Keywords: Virtual memory, Address space
Message-ID: <4639@cbmvax.UUCP>
Date: 1 Sep 88 23:46:13 GMT
References: <8808272322.AA03740@cory.Berkeley.EDU> <125@fishpond.UUCP> <39432@linus.UUCP>
Reply-To: jesup@cbmvax.UUCP (Randell Jesup)
Organization: Commodore Technology, West Chester, PA
Lines: 24

In article <39432@linus.UUCP> eachus@mitre-bedford.arpa (Robert I. Eachus) writes:
>     Fred  (and   many other people,   but not Matt  :-) are confusing
>virtual  address spaces (not   virtual memory) with memory management.
>AmigaDOS 2.0 (or  some such) will  probably  provide memory management
>(assuming that you have a 68020 + 688851 or a 68030 or  ...) such that
>all memory not declared MEMF_PUBLIC cannot be read or written by other
>tasks, etc.  This is a not  a difficult job.

	Not difficult??  Not difficult, he says.  Maybe HE'D like to
make this work with all those programs that misuse/don't use MEMF_PUBLIC?
Also, even non-MEMF_PUBLIC memory may well still have to be readable, at
least for old programs.  Not to say it can't be done, but just that it's
still a sizable can of worms.

>					Robert I. Eachus
>
>with STANDARD_DISCLAIMER;
>use  STANDARD_DISCLAIMER;
>function MESSAGE (TEXT: in CLEVER_IDEAS) return BETTER_IDEAS is...

	So when are you porting Ada to the Amiga?  :-)

-- 
Randell Jesup, Commodore Engineering {uunet|rutgers|allegra}!cbmvax!jesup