227 The registers in the HCS12 show the following: la, b, k D = $2245, X = S1234, Y = 5678, SP = $0900 Assume the following sequence of code is executed and then specify what is in the stack and what is in the registers: psha pshx aba psha puly a. What are the register contents after the program sequence is executed? b. Show the contents of the stack after the program sequence is executed (give your answer in hexadecimal). Memory Address Memory Contents (hex) 08FA 08FB 08FC 08FD 08FE 08FF 0900 0901 0902 0903 0904 0905