CS401 Current Midterm Paper Fall 2013 File 3

by HardRock on December 20, 2013 at 8:20pm

90% mcqs were from past papers..

how many operands in ADC?

ans: 3,1, 2, 4

how 32 bit word is defined?

ans define double, double word, define quad, define byte

if 2 16bit operands multiplied the result will be ________

ans 32bit, 16bit, 24bit, 64bit

if div by zero occurs then ____??

ans div by zero int

for software int we write ____

ans INT

after push instruction SP gets ???

incremented by 2

decremented by 2

SP is associated by default with ???

which math function used in cmp

addition

muktiply

subtract

division

subjective were as follow

what will happen when instruction mov [es:di], DX ....2marks

What does RET n means and what happen when it executes... 2marks

write a program to using rotate to swap AH with AL. AH=0xDD and AL=0xAC

it should transform in AH=0xAC and AL=0xDD...3marks

if used div instruction used div ax, bx what will happen if AX=0x0007h DX=0x0000 and BX=0x0002 and

B DX=0x0000h AX=0xFFFFh and BX=0x0010...... 3 marks

Which instruction is most use in screen rolling function and how screen rolling works...5 or 3 marks

write a program which does extended multiplication between 32bit operands..5marks

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