0000:	21 20 00	LD HL,**		Start storing data in location 00 20
0003:	06 F8		LD B,F8 		Set our byte counter in register B to 248
0005:	DB 00		INPUT A,00		READ USART STATUS
0007:	E6 01		AND 01 			MASK ALL BITS BUT RXRDY			 
0009:	CA 0D 00	JPZ 000D		LOOP IF NO DATA ( JUMP IF ZERO )
000C:	DB 01		INPUT A,01		READ UART DATA
000E:	77			LD (HL),A		STORE A VALUE INTO HL LOCATION ( RAM )
000F:	3C			INC A			INC A
0010:	CA 08 00	JPZ 0000		loop back, restarting the whole thing if FF is read (rubout)
0012:	23			INC HL			Increment storage location			
0013:	05			DEC B			Decrement byte counter by 1
0014:	C2 0D 00	JPNZ 000D		loop back if we haven't read 248 bytes





	DB 00 		INPUT A,0		READ FROM STATUS REGISTER ( IS BYTE AVAILABLE )
	E6 01		AND 01			MASK ALL BITS BUT RXRDY 
	CA 00 00	JP Z 0000		JMP BACK TO READ STATUS IF NOT DATA AVAILABLE
	DB 01		INPUT A,1		READ SERIAL DATA INTO A ( NOW THAT BYTES ARE AVAILABLE )
	D3 01		OUT 01,A		ECHO CHARACTER OUT OF PORT 1
	C3 00 00	JMP 0000		START AGAIN ( BACK TO START OF CODE )









      7 6 5 4    3 2 1 0
	  AND 02
	  JP Z 
	  
	  3E 55		LD  A,55 "U"
	  D3 01		OUT 01,A
	  76		HLT