From owner-freebsd-emulation Sun Sep 29 19:14:52 1996 Return-Path: owner-emulation Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id TAA01174 for emulation-outgoing; Sun, 29 Sep 1996 19:14:52 -0700 (PDT) Received: from haus.efn.org ([198.68.17.3]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id TAA01151 for ; Sun, 29 Sep 1996 19:14:49 -0700 (PDT) Received: from garcia.efn.org (j_mini@garcia.efn.org [198.68.17.5]) by haus.efn.org (8.7.5/8.7.3) with ESMTP id TAA11291; Sun, 29 Sep 1996 19:18:22 -0700 (PDT) Received: from localhost (j_mini@localhost) by garcia.efn.org (8.7.4/8.7.2) with SMTP id TAA11550; Sun, 29 Sep 1996 19:14:37 -0700 (PDT) X-Authentication-Warning: garcia.efn.org: j_mini owned process doing -bs Date: Sun, 29 Sep 1996 19:14:37 -0700 (PDT) From: Jonathan Mini To: Alexey Pialkin cc: msmith@atrad.adelaide.edu.au, emulation@FreeBSD.org Subject: Re: New doscmd available for testing/munching In-Reply-To: <199609280740.LAA00820@abel.pdmi.ras.ru> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-emulation@FreeBSD.org X-Loop: FreeBSD.org Precedence: bulk On Sat, 28 Sep 1996, Alexey Pialkin wrote: > > > > Actually, you mmap /dev/vga which roots at the base of video memory. This > > > > is much cleaner, not to mention safer. > > > > > > BTW, why ? > > > > Say you're running on a SVGA/VESA 2.x video card and FreeBSD has code in > > it to use that (hah and double hah) -- VESA 2.x allows the card to create > > a linear framebuffer in the WAY-UP-HIGH mem addrs like 4G range. Using > > this, video memory for the cons wouldn't BE at 0xA000 like you're trying > > to map. But /dev/vga would be properly redirected. > > Hmmm. Never seen any card that will make linear access memory for _text_ mode > somewhere over 1 mb :) Andyou're only planning on making support for DOS programs that run in TEXT mode?!?!? Jon Mini, j_mini@efn.org, mini@4j.lane.edu GAMMA Development Team -------------------------------------------------------------------------- "I think I can, I think I can, I think I can...." little.blue.engine:Reality Protection Fault. (core dumped) --------------------------------------------------------------------------