View more random threads:
- MTH202 - Discrete Mathematics Spring 2011 Assignment no 1...
- CS302 Digital Logic Design Assignment No 03 Spring June ...
- CS304 Object Oriented Programming spring 2011 idea solution
- MTH 603 3rd assignment
- CS609 System Programming Assignment No.1 Solution Spring...
- CS507 Information Systems Assignment 4 Solution Spring 2011...
- CS302 Assignment No1 idea Solution & Discussion Due Date:...
- MCM301 Communication skills Assignment No.1 Solution Spring...
- CS504 Software Engineering assignment no 3 Solution 20th...
- CS 610 Computer Networks Assignment # 05 Fall 2010 solution
CS401 Computer Architecture and Assembly Language Assignment No.2 Solution 2013
Assignment comprises of lectures No. 9-13.
No assignment will be accepted after the due date via email in any case (whether it is the case of load shedding or internet malfunctioning etc.). Hence refrain from uploading assignment in the last hour of deadline. It is recommended to upload solution file at least two days before its deadline.
For any query, feel free to email at: cs401@vu.edu.pk
[ORG 0100H]
MOV AX, 5
MOV CX, AX
XOR DX, DX
DEC CX
CONT: MOV BX, CX
MUL BX
DEC CX
JNZ CONT
MOV DX, AX
MOV AX, 0X4C00
INT 0X21
Assemble above assembly language code using NASM and answer the following questions:
Q.1. Execute the code in order to examine how changes are made in registers and memory. Students are required to fill in below table after step by step execution of each instruction in the debugger.
(15marks)
S No.
INSTRUCTION
REGISTER VALUES
INSTRUCTION POINTER (IP)
FLAG/STATUS REGISTER
CF
ZF
PF
SF
AF
1
[ORG 0100H]
AX
BX
CX
DX
2
MOV AX,5
AX
BX
CX
DX
3
MOV CX,AX
AX
BX
CX
DX
4
XOR DX,DX
AX
BX
CX
DX
5
DEC CX
AX
BX
CX
DX
6
CONT: MOV BX,CX AX
BX
CX
DX
7
MUL BX AX
BX
CX
DX
8
DEC CX AX
BX
CX
DX
9
JNZ CONT AX
BX
CX
DX
10
CONT: MOV BX,CX AX
BX
CX
DX
11
MUL BX AX
BX
CX
DX
12
DEC CX AX
BX
CX
DX
13
JNZ CONT AX
BX
CX
DX
14
CONT: MOV BX,CX AX
BX
CX
DX
15
MUL BX AX
BX
CX
DX
16
DEC CX AX
BX
CX
DX
17
JNZ CONT AX
BX
CX
DX
Sponsored Links
18
CONT: MOV BX,CX AX
BX
CX
DX
19
MUL BX AX
BX
CX
DX
20
DEC CX AX
BX
CX
DX
21
JNZ CONT AX
BX
CX
DX
22
MOV DX,AX
AX
BX
CX
DX
26
MOV AX,0X4C00 AX
BX
CX
DX
Q.2. Provide the snapshot of debugger showing calculated result stored in DX at the end of our program. (3 marks)
Q.3. Briefly explain the purpose of the given code.
(2 marks)
There are currently 1 users browsing this thread. (0 members and 1 guests)