DoWhileSub:	PHA
		TYA
		PHA			;push accumulator and Y register onto stack

		LDY #0
DoWhileLoop:	INY
		JSR DisplayValue	;routine not implemented
		TYA
		SEC
Modulus:	SBC #6
		BCS Modulus
		ADC #6
		BNE DoWhileLoop

		PLA
		TAY
		PLA			;restore Y register and accumulator from stack
		RTS			;return from subroutine