.globl	lswap

arg1 = 4

lswap:
	movb	#0,d0
 	movb	sp@(arg1+3),d0
	roll	#8,d0
	movb	sp@(arg1+2),d0
	roll	#8,d0
	movb	sp@(arg1+1),d0
	roll	#8,d0
	movb	sp@(arg1),d0
	rts