Book Image

Practical C Programming

By : B. M. Harwani
Book Image

Practical C Programming

By: B. M. Harwani

Overview of this book

Used in everything from microcontrollers to operating systems, C is a popular programming language among developers because of its flexibility and versatility. This book helps you get hands-on with various tasks, covering the fundamental as well as complex C programming concepts that are essential for making real-life applications. You’ll start with recipes for arrays, strings, user-defined functions, and pre-processing directives. Once you’re familiar with the basic features, you’ll gradually move on to learning pointers, file handling, concurrency, networking, and inter-process communication (IPC). The book then illustrates how to carry out searching and arrange data using different sorting techniques, before demonstrating the implementation of data structures such as stacks and queues. Later, you’ll learn interesting programming features such as using graphics for drawing and animation, and the application of general-purpose utilities. Finally, the book will take you through advanced concepts such as low-level programming, embedded software, IoT, and security in coding, as well as techniques for improving code performance. By the end of this book, you'll have a clear understanding of C programming, and have the skills you need to develop robust apps.
Table of Contents (20 chapters)

Multiplying two numbers using the inline assembly language in C

In this recipe, we will learn how to multiply two numbers using the inline assembly language in C. By making use of inline assembly code, we can have better control over CPU registers, manipulate their values up to the bit level, and take advantage of C as well.

How to do it…

To multiply two numbers using the inline assembly language in C, perform the following steps:

  1. Load the two values to be multiplied into eax and ebx registers
  2. Multiply the contents of the eax and ebx registers and store the result in the eax register
  3. Display the content of the eax register on the screen

The program for multiplying two digits using inline assembly code...