80386 processor and Insatruction set

The memory management of 80386 supports

• virtual memory

• paging

• Four level of protection

• All of above

The Unit that increases the speed of all shift and rotate operation is------

• Memory management unit

• execution unit

• instruction unit

• barrel Shifter

The memory management unit consists of_____

• segmentation unit

• paging unit

• segmentation and paging unit

• none

The central processing unit has a sub-division of

• memory unit and control unit

• memory unit and ALU

• execution unit and instruction unit

• execution unit and memory unit

The unit that is used for handling data, and calculate offset address is----------

• memory management unit

• execution unit

• instruction unit

• bus interface unit

What feature of the 80386 memory management system provides enhanced security?

• Virtual memory

• Paging

• Four levels of protection

• Memory segmentation

The operation that can be performed on segments in 80386 real mode is-----

• Read

• Write

• Execute

• All of above

The linear address is calculated by------

• effective address + segment base address

• effective address – segment base address

• effective address + physical address

• effective address – physical address

What does the last instruction of each subroutine that transfer the control to the instruction in the calling program with temporary address storage , called as?

• jump to subroutine

• branch to subroutine

• return from subroutine

• call subroutine

The mnemonic that is placed before the arithmetic operation is performed is

• AAA

• AAS

• AAM

• AAD