(B)- Answer the following questions: 1. After the PUSH and POP instructions, where does the stack pointer go? 2. Explain the opcode and operand in XCHG [BX][SI]+1234H, AX instruction. 3. If DX...

Extracted text: (B)- Answer the following questions: 1. After the PUSH and POP instructions, where does the stack pointer go? 2. Explain the opcode and operand in XCHG [BX][SI]+1234H, AX instruction. 3. If DX contains 81FEH and CX contains 1986H, explain the effect of the following instructions on the flag registers. Suppose that the flags are initially 0 in each statement of this question. i.SUB DX, CX ii.XCHG DX, CX