register CX: 20-6+ (-10) - (-8)+ 15 Trace the contents of registers, assume initial contents are 0000 Instruction CX DX Remark AAB 2. Write a sequence of instructions to compute the following arithmetic expression and store the result register Dx: 7+ (-20) * 14-(-10) 8-9 Trace the contents of registers, assume initial contents are 0000 AX CX DX Remark Instruction initial BX