05) Answer the following A- The following program contains some errors. Fix the errors and make the program run correctly. (Note: this program adds four words and saves the result. These words are stored in data segment memory locations starting with the offset address 25H). 3 Marks MOV DS , 2000H MOV CX ,04 MOV BX,0 MOV DI ,26H Next: ADD BX,[DI] INC DI JNZ Next MOV SI , OAH MOV [SI] ,BX HLT B- If AX = 34E5H and BX = 288DH, write a short sequence of instructions to exchange the contents of these registers using PUSH / POP instructions only. Assume SP =500H and SS = 700H. 2 Marks C- Determine the value of DX and CF after execute the following instructions: MOV DX ,3FA2H MOV CL , 03 ROL DX, CL 2 Marks D- Why are buffers often required in an 8086-based system? 1 Marks E- What main function is provided by the 8288 bus controller when used with 8086 maximum mode operation? 2 Marks