Assembly4School

This directory contains a series of assembly exercises for the 8086 microprocessor. The exercises explore various aspects of low-level programming, such as memory management and character manipulation.

Exercise Index

Basic Exercises

Exercise	Description
Ex. 01 - Name	Write a program that prints your name using character sequences
Ex. 02 - Sum	Write a program that takes two numbers as input and prints their sum
Ex. 03 - PreviousNext	Given an input letter, print the previous and next letters in the alphabet
Ex. 04 - Rot2	Print a string from memory with each letter shifted +2 in the alphabet

Memory Operations

Exercise	Description
Ex. 05 - Surname	Load your surname into memory starting at address 0x0200h
Ex. 06 - ASCII	Populate memory with printable ASCII characters starting at a birthdate address (0xggmmh)

String Manipulation

Exercise	Description
Ex. 07 - Rot13	Implement ROT13 cipher for input words (up to 10 chars)
Ex. 23 - Rot13 Strings	Advanced ROT13 implementation with input sanitization
Ex. 24 - To Upper	Convert input string to uppercase

Visual Output

Exercise	Description
Ex. 09 - Memvideo	Video memory manipulation with name/surname/DOB display
Ex. 10 - ASCII Color	Print ASCII characters with varying colors
Ex. 12 - Windows	Draw customizable frames using width/height (W×H) and position (X,Y)

Number Processing

Exercise	Description
Ex. 08 - Countdown	Countdown from input number to zero
Ex. 11 - Countdown Color	Colored countdown version
Ex. 28 - Basic Calculator	Single-digit integer calculator

Advanced Concepts

Exercise	Description
Ex. 21 - String Macros	Macro-based string handling with case conversion
Ex. 34-38	Advanced topics (stack operations, random generators, etc.)

Templates

• COM Template
• EXE Template