From patchwork Fri Nov 5 01:03:13 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Koning X-Patchwork-Id: 70203 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from sourceware.org (server1.sourceware.org [209.132.180.131]) by ozlabs.org (Postfix) with SMTP id 300C2B70DF for ; Fri, 5 Nov 2010 12:03:24 +1100 (EST) Received: (qmail 1348 invoked by alias); 5 Nov 2010 01:03:22 -0000 Received: (qmail 1339 invoked by uid 22791); 5 Nov 2010 01:03:21 -0000 X-SWARE-Spam-Status: No, hits=-1.7 required=5.0 tests=AWL, BAYES_00, T_RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Received: from ausc60ps301.us.dell.com (HELO ausc60ps301.us.dell.com) (143.166.148.206) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Fri, 05 Nov 2010 01:03:17 +0000 X-Loopcount0: from 10.152.240.141 Subject: Re: [PATCH] doc: add pdp11 machine constraints Mime-Version: 1.0 (Apple Message framework v1081) From: Paul Koning In-Reply-To: Date: Thu, 4 Nov 2010 21:03:13 -0400 Cc: gcc-patches Message-Id: <56BF3981-59C7-4930-A64A-8CFF7508AFD7@dell.com> References: To: "Joseph S. Myers" Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Delivered-To: mailing list gcc-patches@gcc.gnu.org On Nov 4, 2010, at 8:45 PM, Joseph S. Myers wrote: > On Thu, 4 Nov 2010, Paul Koning wrote: > >> +Odd numbered general registers (R1, R3, R5). These are used for 16 >> +bit multiply operations. > > "16-bit", with a hyphen. > >> +@item M >> +The integer constant -1. > > @minus{}1. > >> +Integer constants -4 through -1 and 1 through 4; shifts by these > > Likewise, @minus{}4 and @minus{1}. Thanks! Done. paul ChangeLog: 2010-11-04 Paul Koning * doc/md.texi (Machine Constraints): Correct formatting in PDP-11 constraints. Index: doc/md.texi =================================================================== --- doc/md.texi (revision 166335) +++ doc/md.texi (working copy) @@ -2928,8 +2928,8 @@ memory with a single instruction. @item d -Odd numbered general registers (R1, R3, R5). These are used for 16 -bit multiply operations. +Odd numbered general registers (R1, R3, R5). These are used for +16-bit multiply operations. @item f Any of the floating point registers (AC0 through AC5). @@ -2951,13 +2951,13 @@ The integer constant 1. @item M -The integer constant -1. +The integer constant @minus{}1. @item N The integer constant 0. @item O -Integer constants -4 through -1 and 1 through 4; shifts by these +Integer constants @minus{}4 through @minus{}1 and 1 through 4; shifts by these amounts are handled as multiple single-bit shifts rather than a single variable-length shift.