Scribd
Upload
12 views4 pages

The University of Zambia School of Engineering Department of Electrical and Electronics

The document is an assignment from a student named Banda Dennis at the University of Zambia, focusing on various aspects of assembly language programming. It includes examples of addressing modes, types of instructions, and concepts such as macros and procedures. Additionally, it discusses physical address calculations and interrupt types relevant to low-level programming.

Uploaded by

Dennis Banda
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
12 views4 pages

The University of Zambia School of Engineering Department of Electrical and Electronics

The document is an assignment from a student named Banda Dennis at the University of Zambia, focusing on various aspects of assembly language programming. It includes examples of addressing modes, types of instructions, and concepts such as macros and procedures. Additionally, it discusses physical address calculations and interrupt types relevant to low-level programming.

Uploaded by

Dennis Banda
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
You are on page 1/ 4

THE UNIVERSITY OF ZAMBIA

SCHOOL OF ENGINEERING
DEPARTMENT OF ELECTRICAL AND ELECTRONICS

ASSIGNMENT 2

NAME: BANDA DENNIS

COMPUTER NUMBER: 2021471080

COURSE: EEE 3132

ATTENTION: DR PHIRI
1.

MOV AX, 2000H

MOV DS, AX

MOV AL, [0500H]

ADD AL, [0600H]

MOV [0700H], AL

HLT

2.

1) Immediate Addressing - Operand is part of the instruction. e.g. MOV AX, 1234H

2) Register Addressing - Operand is a register. e.g. MOV AX, BX

3) Direct Addressing - Memory address is given directly. e.g. MOV AL, [1234H]

4) Register Indirect Addressing- Address is in a register (BX, BP, etc). e.g. MOV AL, [BX]

5) Indexed Addressing - Uses SI or DI as index. e.g. MOV AL, [SI]

6) Base + Index Addressing - Combines base and index. e.g. MOV AL, [BX + SI]

7) Relative Addressing - Used in jumps (offset from IP). e.g. JMP LABEL

8) Based Indexed + Displacement- Base + Index + Offset. e.g. MOV AL, [BX + SI +10H]

3.

1) Data Transfer Instructions - MOV, PUSH, POP

2) Arithmetic Instructions - ADD, SUB, MUL, DIV

3) Bit Manipulation Instructions - AND, OR, XOR, NOT

4) String Instructions - MOVS, CMPS, SCAS

5) Control Transfer Instructions - JMP, CALL, RET, LOOP

6) Processor Control - HLT, NOP, WAIT, STC

7) Logical Instructions - TEST, CMP

8) Flag Manipulation - STC, CLC, CMC


4.

Writing low-level code using mnemonics that correspond to machine instructions.

It allows direct control of hardware and is specific to the processor architecture.

5.

Physical Address = (SS × 10H) + SP

6.

Macros are code templates that are expanded during assembly.

They simplify repetitive tasks and are inlined, unlike procedures.

7.

MOV BX, 1234H ; Load BX with initial value

INC BX ; Increment BX without affecting AX

8.

Using the macro multiple times will cause label redefinition errors

because the assembler sees the same label multiple times.

9.

MOV AL, 5AH ; Load 8-bit constant into AL

MOV AX, 5A5AH ; Load 16-bit constant into AX


10.

PROC marks the beginning of a procedure.

ENDP marks the end of the procedure.

MyProc PROC

MyProc ENDP

11. Based Indexed with Displacement Addressing Mode.

12.

Type 0 - Divide Error

Type 1 - Single Step

Type 2 - NMI (Non-Maskable Interrupt)

Type 3 - Breakpoint

Type 4 - Overflow

Type 5-255 - Software/User-defined interrupts

13.

Physical Address = (4000H × 10H) + 43A2H = 443A2H

Maximum size of data segment = 64 KB (0000H to FFFFH)

14.

Physical Address = (1085H × 10H) + 4537H = 10850H + 4537H = 14D87H

15.

INT 3 ; This is a software breakpoint interrupt (Type 3).

; Useful for halting program during debugging.

You might also like