Organization and Assembly (3453)-solved Assignment-old papers-course outline -aiou-spring 2015

Solved Assighnments

AIOU

 

 

 

 

 

 

  Course:Organization and Assembly (3453)

Level: B.S (CS) Semester: Spring, 2015

Total Marks: 100 Pass Marks: 50

 

ASSIGNMENT No. 1

All questions carry equal marks

Q.1 What is difference between General-Purpose and Special Purposeregisters of 80x80 microprocessor? Briefly specify the role of each.

general
special

Q.2 How Segment registers of 80x80 microprocessor are used togenerate address in Real-Mode memory addressing?   

  real mode 8086

Q.3 How a program is loaded into memory and then executed? Write allsteps in sequence. Draw a memory-map to explain.

Q.4 Explain the following addressing modes of instruction of x86 family of processors with two examples of each:

a) Register Indirect Addressing Mode

                   example simmediate
                     immediate 2

b) Immediate Addressing Mode

Q.5 What types of unsigned data representation (with variable) are available in Assembly Language? Write examples of any two of those types.

ASSIGNMENT No. 2

Total Marks: 100 Pass Marks: 50

All questions carry equal marks

Q.1 Explain the usage of registers in MUL and DIV instructions for 8-bit and 16-bit multiplication with a register (say cl/c) is provided as the only operand?

Q.2 Write a sequence of instructions to set and clear the following FLAGS:

i) Zero Flag ii) Sign Flag

iii) Overflow Flag iv) Carry Flag

Q.3 Explain the difference between LOOP and LOOPE instruction with the help of a program.

Q.4 Will the following code jump to the label named Target (Yes / No)? Explain reason in each.

mov ax, 8109h

camp ax, 26h

Jg Target

add ax, 8000h

Target:

Ans:

No, because the jg is used with signed value and

(8109h is negative, and 26h is positive.)

Q.5 Write a program to sequentially search the array LIST1 of 20 elements of WORD type. Return Index number (count 0 as first index) if search is successful otherwise display a message indicating the absence of a key.

3453 Computer Organization and Assembly Credit Hours: 4 (3 + 1)

Recommended Book: Assembly Language for Intel-Based Computers, 3^rdEdition, by Kip R. Irvine

Course Outlines:

Unit # 1 Introduction

a. Context of Assembly Language

1-Introduction to assembly language,  

2-Assembly Language Applications

b. Data representation

1-Binary numbers,

2- Converting Binary to Decimal,

3-Hexadecimal Number:-. 

4-Signed Numbers, 

5-Character Storage,

c. Introducing Assembly Language

1-LanguageInstructions

2-A Sample Debug Program, 

3-Debug Commands

Unit # 2 Hardware and Software Architecture

a. 16-BIT Intel Processor Architecture

1-Central Processing Unit, 

2-Registers, 

3-Status and Control Registers, 

$-Flags;Instruction Execution Cycle, 

5-Intel Microprocessor Family,

b. 32-BITIntel Processor Architecture

1-Improved Execution Cycle

2-32-bit Register Set

c. Operating System and Memory

1-MemoryArchitecture

2- Video display

3- Absolute Address Calculation

4-VideoAdapter, Memory (RAM), 5

5-Video RAM,

Unit #3

 Assembly Language Fundamentals

a. BasicElements

1-Constantsand Expressions, 

2-Statements, 

3-Names, 

4-Sample Hello Program

b. Assembling Linking and Debugging

1-Microsoft Assembler (MASM)

c. DataAllocation Directive

1-DefineByte (DB), 

2-Define Word (DW), 

3-Define Doubleword (DD),

d. Symbolic Constants

1-Equal-Sign Directive

2- EQU Directive

3 TEXT EQU Directive

Unit # 4

 Instructions

a. MOV Instruction

Operands with Displacements, XCHG Instruction

b. Arithmetic Instructions

INC and DEC Instructions, ADD Instruction, SUB Instruction, 1 lags Affected by ADD and SUB

c. Basic Operand Types

Register Operands, Immediate Operands, Direct Operands, Direct Offset Operands,

d. Extended Addition and Subtraction

ADC Instruction, SBB Instruction

e. Multiplication and Division

MUL Instruction, IMUL Instruction, DIV Instruction, IDIV Instruction, CBW, CWD, CDQ, and CWDE Instructions, Preventing Divide Overflow

Unit # 5 Using the Assembler.

a. More About the Assembler and Linker ;

1-SourceListing File, 

Map File, 

Assembling and Linking with MS-DOS Batch Files, 

Memory Models, 

Target Processor Directives

b. Operators and Expressions

ArithmeticOperators, OFFSET, SEG, PTR, LABEL, AND EVEN

c. IMP and LOOP Instructions

JMP Instructions,

 LOOP Instruction LOOP, LOOPW, LOOPD Instructions

d. Indirect Addressing

Indirect Operands, 

Based and Indexed Operands,

 Base-Index wiUi-Displacement

Unit # 6 Conditional Processing

a. Boolean and Comparison Instructions

The F'ags Register, AND Instruction, OR Instruction, XOR Instruction," NOT Instruction, NEG Instruction, TEST Instruction, CMP Instruction, CMPXCHG Instruction

b. Integer Arithmetic

Shift and Rotate Instructions, SHL Instruction, SHLD/SHRD Instructions,

SHR Instruction, SAL and SAR Instructions, ROL Instruction, ROR Instruction, RCL and RCR Instructions,

c. Sample Applications

Shifting Multiple Bytes on the 8086, Fast Multiplication and Division

Unit # 7 Conditional Jumps

a. Code Generation for Conditional Jumps, Conditional Jump Examples

b. Conditional Loops

LOOPZ and LOOPE Instructions, LOOPNZand LOOPNE Instructions

c. High-Level Logic Structures

Simple IF Statement, Compound IF Statement, WHILE Structure-, REPEAT-UNTIL Structure, CASE Structure, Table of Procedure Offsets.

Unit # 8 Software Interrupts

a. INT Instruction, Redirecting Input-Output

b. MS-Dos Function Calls

Output Functions, Input Functions, Date/Time Functions,

c. BIOS-Level Keyboard Input (INT16H)

d. BIOS-Level Video Control (INT 10H)

e. Disk Storage Fundamentals

f. Drive and Directory Manipulation

Unit # 9 Procedures and Interrupts,

a. Stack Operations

b. Procedures,

c. Procedure Parameters

d. Structures

e. Macros

Macros with Parameters, Defining a Macro, Example: mDisplayiStr, Macro, mGotoRowCol macro

old papers

spring 2012

1- difference between hexadecimal sighned and unsighned number storage in memory