From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263319AbTDYPJF (ORCPT ); Fri, 25 Apr 2003 11:09:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263328AbTDYPJF (ORCPT ); Fri, 25 Apr 2003 11:09:05 -0400 Received: from watch.techsource.com ([209.208.48.130]:53244 "EHLO techsource.com") by vger.kernel.org with ESMTP id S263319AbTDYPJC (ORCPT ); Fri, 25 Apr 2003 11:09:02 -0400 Message-ID: <3EA9565B.9020905@techsource.com> Date: Fri, 25 Apr 2003 11:38:03 -0400 From: Timothy Miller User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.1) Gecko/20020823 Netscape/7.0 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Steven Augart CC: John Bradford , Kernel Mailing List Subject: Re: Simple x86 Simulator (was: Re: Flame Linus to a crisp!) References: <200304250702.h3P72FZF000352@81-2-122-30.bradfords.org.uk> <3EA8EC4D.4090506@augart.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Steven Augart wrote: > We could not. Consider just the 8 32-bit-wide legacy x86 registers, > excluding the MMX and FPU registers: > (AX, BX, CX, DX, BP, SI, DI, SP). 32 bits x 8 = 2^256 independent > states to look up in the table, each state having 256 bits of > information. 2^264 total bits of information needed. Assume 1 GB > dimms (2^30 * 8 bits each = 2^33 bits of info), with a volume of 10 > cm^3 per DIMM (including a tiny amount of space for air circulation.). > Need 34508731733952818937173779311385127262255544860851932776 cubic > kilometers of space. > > Considerably larger than the volume of the earth, although admittedly > smaller than the total volume of the universe. > --Steven Augart > > If this could be done, someone would have done it already.