MPMC QUIZ3

6. An interrupt breaks the execution of instructions and diverts its execution to

• Interrupt service routine

• Counter word register

• Execution unit

• Control unit

6. While CPU is executing a program, an interrupt exists then it

• breaks the normal sequence of execution of instructions

• stops executing the program

• jumps to instruction in other registers

• follows the next instruction in the program

The stack pointer register contains

• pointer address of the stack segment

• offset of address of stack segment

• address of the stack segment

• data present in the stack segment

6. If any interrupt request given to an input pin cannot be disabled by any means then the input pin is called

• maskable interrupt

• maskable interrupt and nonmaskable interrupt

• nonmaskable interrupt

• none of the mentioned

Which of the following is not a machine control flag?

• Trap flag

• Interrupt flag

• Overflow flag

• Direction flag

Direction flag is used with ____

• Branch Instructions

• Arithmetic Instructions

• String instructions

• Stack Instructions

The main advantage of multiple bus organisation over a single bus is _____

• Reduction in the number of cycles for execution

• Increase in size of the registers

• Better Connectivity

• None of the mentioned

The ISA standard Buses are used to connect ___________

• RAM and processor

• GPU and processor

• CD/DVD drives and Processor

• Harddisk and Processor

1. Number of the times the instruction sequence below will loop before coming out of loop is

MOV AL, 00h

A1: INC AL

JNZ A1

• 0

• 1

• 256

• 255

1. If a number of instructions are repeating through the main program, then to reduce the length of the program, __________ is used.

• procedure

• macro

• subroutine

• none of the mentioned