AREA RESET, DATA, READONLY
	EXPORT __Vectors
__Vectors
	DCD 0x10001000
	DCD Reset_Handler
	ALIGN
	
	AREA MYCODE, CODE, READONLY
	ENTRY
	EXPORT Reset_Handler

Reset_Handler
	LDR R0, =SRC
	LDR R3, =DST
    MOV R1, #0
	MOV R10, #8
	
UP
    LDRB R2, [R0], #1
    CMP R1, #'9'
    BCC DOWN
    SUB R2, #7
	
DOWN
	SUB R2, #0x30
    LSL R1, #4
    ORR R1, R1, R2
    SUBS R10, #1
	BNE UP

    STR R1, [R3]
SRC DCB "12AB34CF"
	
	AREA mydata, DATA, READWRITE

DST DCD 0

	END