; void __asm add64 (register __a0 struct EClockVal *dst,
;                   register __a1 struct EClockVal *src);

; void __asm sub64 (register __a0 struct EClockVal *dst,
;                   register __a1 struct EClockVal *src);

; int __asm cmp64 (register __a0 struct EClockVal *dst,
;                  register __a1 struct EClockVal *src);

		xdef	_add64
		xdef	_sub64
		xdef	_cmp64

_add64:		addq.l	#4,a1
		addq.l	#4,a0
		move.l	(a1),d0
		add.l	d0,(a0)
		addx.l	-(a1),-(a0)
		rts

_sub64:		addq.l	#4,a1
		addq.l	#4,a0
		move.l	(a1),d0
		sub.l	d0,(a0)		; dst->lo - src->lo
		subx.l	-(a1),-(a0)	; dst->hi - src->hi
		rts

_cmp64:		cmpm.l	(a1)+,(a0)+	; (a0)-(a1), dst->hi - src->hi
		bne.b	1$
		cmpm.l	(a1)+,(a0)+	; dst->lo - src->lo
		bne.b	1$
		moveq	#0,d0
		rts
1$:		bpl.b	2$
		moveq	#1,d0
		rts
2$:		moveq	#-1,d0
		rts
		end