Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!samsung!munnari.oz.au!comp.vuw.ac.nz!actrix!templar!jbickers From: jbickers@templar.actrix.gen.nz (John Bickers) Newsgroups: comp.sys.amiga.advocacy Subject: Re: 8-bit death Message-ID: <3743.tnews@templar.actrix.gen.nz> Date: 15 May 91 07:37:17 GMT References: <3626.tnews@templar.actrix.gen.nz> <1991May12.181436.20304@NCoast.ORG> <3691.tnews@templar.actrix.gen.nz> <1991May13.224027.9132@NCoast.ORG> Organization: TAP, NZAmigaUG. Lines: 24 Quoted from <1991May13.224027.9132@NCoast.ORG> by allbery@NCoast.ORG (Brandon S. Allbery KF8NH): > for system calls. BIOS calls are another matter, but they're a prime symptom What does BIOS stand for? > So user processes run in user mode. But the system has to run in supervisor > mode to manipulate the MMU... oh, that's right, the Amiga doesn't use the MMU. The "Amiga" does use the MMU (for things like Enforcer, etc). How does an Enforcer-like tool work under Unix? Or how do Unix source code debuggers work, for example? > And using a non-interrupt entry point runs the risk of somebody accidentally > typo'ing a #define and making every program in existence break as a result. Eh? Would you like to elaborate on this? Sounds like an incredibly stupid mistake to make, but you make it sound like it has happened in the past. Pre C= 64 days, maybe? > ++Brandon -- *** John Bickers, TAP, NZAmigaUG. jbickers@templar.actrix.gen.nz *** *** "Endless variations, make it all seem new" - Devo. ***