!

!

!	.MACRO 	foo a b c=a
!	\a \b \c \d
!	.ENDM
!

!	foo 1 2
!	1 2 a \d
	1 2 a \d
!	foo 1 2 3 4
!	foo 1
!	1  a \d
	1  a \d
!	foo 
!	  a \d
	a \d
!

!

!	.END