From owner-freebsd-hackers Wed May 5 18:51:13 1999 Delivered-To: freebsd-hackers@freebsd.org Received: from dingo.cdrom.com (dingo.cdrom.com [204.216.28.145]) by hub.freebsd.org (Postfix) with ESMTP id 28759158DC for ; Wed, 5 May 1999 18:51:12 -0700 (PDT) (envelope-from mike@dingo.cdrom.com) Received: from dingo.cdrom.com (localhost.cdrom.com [127.0.0.1]) by dingo.cdrom.com (8.9.3/8.8.8) with ESMTP id SAA03960; Wed, 5 May 1999 18:50:02 -0700 (PDT) (envelope-from mike@dingo.cdrom.com) Message-Id: <199905060150.SAA03960@dingo.cdrom.com> X-Mailer: exmh version 2.0.2 2/24/98 To: Zhihui Zhang Cc: freebsd-hackers@freebsd.org Subject: Re: What is define(...)dnl in a .m4 file In-reply-to: Your message of "Wed, 05 May 1999 21:36:38 EDT." Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Wed, 05 May 1999 18:50:02 -0700 From: Mike Smith Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG A .m4 file is input for the m4 macro preprocessor. See the m4 manpage. > I find in the file boot1.m4 under /usr/src/sys/boot the following line: > > define(_bp_,0x6)dnl > define(_bx_,0x7)dnl > define(o16,`.byte 0x66')dnl > define(addbr1,`.byte 0x0; .byte 0x40 | ($1 << 0x3) | $3; .byte $2')dnl > > I assume boot1.m4 is an assembly file but I can not find any information > on define(...)dnl in the GNU Assembler manual (info files). > > Please tell me how a .m4 file is used and what does "define" mean exactly. > > Thanks for your help. > > -------------------------------------------------- > Zhihui Zhang. Please visit http://www.freebsd.org > -------------------------------------------------- > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-hackers" in the body of the message > -- \\ Sometimes you're ahead, \\ Mike Smith \\ sometimes you're behind. \\ mike@smith.net.au \\ The race is long, and in the \\ msmith@freebsd.org \\ end it's only with yourself. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message