4.1cBSD/usr/src/lib/libc/net/misc/ffs.c

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/* @(#)ffs.c	4.1 12/15/82 */
/* bit = ffs(value) */

#include "DEFS.h"

ENTRY(ffs)
	ffs	$0,$32,4(ap),r0
	bneq	1f
	mnegl	$1,r0
1:
	incl	r0
	ret