1- Explain what happens when PUSH Bx instruction executes. Make sure to show where BH and BL are stored (assume that SP=0100h and SS=0200h) 2- Show the ending address of each memory segments for the following segment register values: SS=ABCD, CS=E000h, DS=F0F0h, CS=1234h 3- Suppose that ECx=12345678h , EBx=87654321h and DS=1100h. Determine the contents of each address accessed by the following instructions: (a) MOV [EBx],ECx (b) MOV WORD PTR[EBX ], 1234h