- 2) Given an ASCII string of exactly 4 hexadecimal digits ('0' - '9', 'A' 'F'), convert the hexadecimal number that it represents into its binary equivalent. Place this halfword-size result in memory. Your program will read the input. from memory and store the output to memory. For example, let the string be "EA18" so this input ASCII string has values Ox45, Ox41, Ox31, Ox38. The binary equivalent is: 1110 1010 0001 1000. Expressed in hexadecimal, this is OxEA18. IN ARM ASSEMBLY