From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Rustom Mody Newsgroups: gmane.emacs.help Subject: Re: Emacs history, and "Is Emacs difficult to learn?" Date: Thu, 1 Aug 2013 09:08:37 -0700 (PDT) Message-ID: <6be5c9a9-ba78-4169-8020-aa9e4c30a759@googlegroups.com> References: <87y58pplcp.fsf@VLAN-3434.student.uu.se> <87fvuwgsv0.fsf@VLAN-3434.student.uu.se> <075751cf-97a3-4d01-8fb1-4ffbc0180f3f@googlegroups.com> <878v0oxfdw.fsf@VLAN-3434.student.uu.se> <87a9l4rs76.fsf@VLAN-3434.student.uu.se> <39e6407d-c4fd-4dc1-b47f-a1ba4119c7cb@googlegroups.com> <87iozqzjjq.fsf@VLAN-3434.student.uu.se> <871u6dpjar.fsf@VLAN-3434.student.uu.se> <14bebcfe-2311-4bb3-8154-4cc803962c71@googlegroups.com> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1375373415 21616 80.91.229.3 (1 Aug 2013 16:10:15 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 1 Aug 2013 16:10:15 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Thu Aug 01 18:10:18 2013 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1V4vSD-0003fQ-6A for geh-help-gnu-emacs@m.gmane.org; Thu, 01 Aug 2013 18:10:17 +0200 Original-Received: from localhost ([::1]:48639 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1V4vSC-0005H3-N7 for geh-help-gnu-emacs@m.gmane.org; Thu, 01 Aug 2013 12:10:16 -0400 X-Received: by 10.224.171.72 with SMTP id g8mr4698065qaz.7.1375373318298; Thu, 01 Aug 2013 09:08:38 -0700 (PDT) X-Received: by 10.50.66.134 with SMTP id f6mr157587igt.13.1375373318255; Thu, 01 Aug 2013 09:08:38 -0700 (PDT) Original-Path: usenet.stanford.edu!fx3no436152qab.0!news-out.google.com!he10ni0qab.0!nntp.google.com!fx3no436150qab.0!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail Original-Newsgroups: gnu.emacs.help In-Reply-To: Complaints-To: groups-abuse@google.com Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=59.95.39.176; posting-account=mBpa7woAAAAGLEWUUKpmbxm-Quu5D8ui Original-NNTP-Posting-Host: 59.95.39.176 User-Agent: G2/1.0 Injection-Date: Thu, 01 Aug 2013 16:08:38 +0000 Original-Xref: usenet.stanford.edu gnu.emacs.help:200364 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:92631 Archived-At: On Thursday, August 1, 2013 9:12:45 PM UTC+5:30, Stefan Monnier wrote: > It goes even further back: assembly is better than raw machine code > because it doesn't let you see the raw byte encoding of your > instructions (which prevents you from jumping in the middle of an > instruction, even though that can be useful when trying to shave off > a few bytes). Not sure how to parse that: a. If you are saying having access to the encoding of instructions can some= times help one to choose more intelligently than a software like an assembl= er, yeah along with clock-counting, Ive enjoyed that passtime. b. If you are saying jumping into the middle of an instruction can be usefu= l, well I confess this is beyond my ken. For one I believe that in assembl= y alone with arithmetic on the location-counter that should be possible. O= n the other hand I dont know how to do that without getting into undefined = instruction issues.