ffs.s

<B>Digital的Unix操作系统VAX 4.2源码</B>

/* @(#)ffs.s	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