Computer Organization and Architecture Mcqs

Page No. 71

The instructions which are used to load or store multiple operands are called as __________


aBanked instructions


bLump transfer instructions


cBlock transfer instructions


dDMA instructions



___________ symbol is used to signify write back mode.


a#


b ^


c&


d !


View Answer !

The LEA mnemonic is used to __________


aLoad the effective address of an instruction


b Load the values of operands onto an accumulator


cDeclare the values as global constants


dStore the outcome of the operation at a memory location



The instruction JG loop does ______


a jumps to the memory location loop if the result of the most recent arithmetic op is even


b jumps to the memory location loop if the result of the most recent arithmetic op is greater than 0


cjumps to the memory location loop if the test condition is satisfied with the value of loop


dnone of the mentioned



The instruction, ADD R1, R2, R3 is decoded as ___________


aR1<-[R1]+[R2]+[R3]


bR3<-[R1]+[R2]


cR3<-[R1]+[R2]+[R3]


dR1<-[R2]+[R3]


View Answer R1<-[R2]+[R3]

The Bit extension of the register is denoted with the help of __________ symbol.


a $


b`


cE


d ~


View Answer E

The IA-32 processor can switch between 16 bit operation and 32 bit operation with the help of instruction prefix bit.


aTrue


bFalse


ceither true either false


dnone of the mentioned


View Answer True

The register used to serve as PC is called as ___________


a Indirection register


b Instruction pointer


c R-32


dNone of the mentioned



In IA-32 architecture along with the general flags, the other conditional flags provided are ___________


a IOPL


b IF


cTF


dAll of the mentioned


View Answer All of the mentioned

IOPL stands for ________


a Input/Output Privilege level


b Input Output Process Link


cInternal Output Process Link


dInternal Offset Privilege Level



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