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Show All 38 Lines	#if defined(LIBC_SCCS) && !defined(lint)
ASMSTR("from: @(#)ffs.s 8.1 (Berkeley) 6/4/93")		ASMSTR("from: @(#)ffs.s 8.1 (Berkeley) 6/4/93")
ASMSTR("$NetBSD: ffs.S,v 1.2 2009/12/14 00:39:00 matt Exp $")		ASMSTR("$NetBSD: ffs.S,v 1.2 2009/12/14 00:39:00 matt Exp $")
#endif /* LIBC_SCCS and not lint */		#endif /* LIBC_SCCS and not lint */

#ifdef __ABICALLS__		#ifdef __ABICALLS__
.abicalls		.abicalls
#endif		#endif

		WEAK_ALIAS(__ffssi2,ffs)

/* bit = ffs(value) */		/* bit = ffs(value) */

LEAF(ffs)		LEAF(ffs)
move v0, zero		move v0, zero
beq a0, zero, done		beq a0, zero, done
1:		1:
and v1, a0, 1 # bit set?		and v1, a0, 1 # bit set?
addu v0, v0, 1		addu v0, v0, 1
srl a0, a0, 1		srl a0, a0, 1
beq v1, zero, 1b # no, continue		beq v1, zero, 1b # no, continue
done:		done:
j ra		j ra
END(ffs)		END(ffs)