SERIAL_INT:			; SERIAL INTERRUPT ROUTINE
	CLR	RI		; CLEAR THE RI BIT (SINCE WE KNOW THAT WAS THE BIT THAT CAUSED THE INTERUPT)
	MOV	R4,	SBUF	; Laser on or off
	MOV	R2,	SBUF	; MOVE THE RECEIVED DATA OUT TO REGISTERS
	MOV 	R3,	SBUF
	RETI			; EXIT THE SERIAL INTERRUPT ROUTINE