Date: Wed, 5 May 1999 21:36:38 -0400 (EDT) From: Zhihui Zhang <zzhang@cs.binghamton.edu> To: freebsd-hackers@freebsd.org Subject: What is define(...)dnl in a .m4 file Message-ID: <Pine.GSO.3.96.990505213113.11828C-100000@sol.cs.binghamton.edu>
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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
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