Computer Organization and Architecture Mcqs

Page No. 67

The word length in the 68000 computer is _______


a32 bit


b64 bit


c16 bit


d8 bit


View Answer 16 bit

_____ register is designated to point to the 68000 processor stack.


aA7 register


bB2 register


cThere is no such designation


d Any general purpose register is selected at random


View Answer A7 register

The LINK instruction is always followed by ____________ instruction.


aMOV


bUNLK


cORG


dMOVEM


View Answer MOVEM

____________ instruction is used to set up a frame pointer for the subroutines in 68000.


a CREATE


bLINK


cUNLK


dFRAME


View Answer LINK

The 68000 uses ____________ method to access I/O devices buffers.


aMemory mapped


b I/O mapped


cBuffer mapped


dNone of the mentioned


View Answer Memory mapped

The purpose of using DBcc as a branch instruction is __________


a It provides two conditions to be satisfied for a branch to occur


b It provides a counter to check the number of times the branch as taken place


cIt is used to check the condition along with the branch condition


dNone of the mentioned


View Answer None of the mentioned

The Branch instruction in 68000 provides how many types of offsets?


a3


b1


c0


d 2


View Answer 2

To allocate a block of memory we use ___________ directive.


a RESERVE


bDS


cDATAWORD


dPLACE


View Answer DS

The constant can be declared using __________


aDATAWORD


bPLACE


c CONS


dDC


View Answer DC

The starting address is denoted using _________ directive.


aEQU


b ORIGIN


cORG


dPLACE


View Answer ORG

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