Calls, Strings and Codes

Learn how to do basic input and output, work with strings and condition codes at the x86 Assembly level. Then try your hand at your first project by building your own x86 Assembly program.

4 videos  //  76 minutes of training

Free training week — 600+ on-demand courses and hands-on labs

Course description

In this course, we’ll learn how to do basic input and output (i/o) operations at the assembly level, including how to store and work with strings. Then you’ll try your hand at your first project of building an application written entirely in x86 Assembly. Finally, we’ll look at condition codes and how the x86 processor handles tracking the state of certain processor conditions.

Course syllabus

Input and Output: x86 System CallsDuration: 18:41

This video covers basic I/O operations and how we can leverage the operating system at the assembly level to perform these tasks.

LAB: Hello World! Creating the Usual Hello World in x86Duration: 19:36

This project will guide you through building an application written entirely in x86 Assembly.

Strings/ASCII: How to Work with Strings and ASCII in x86Duration: 7:42

This video covers the concept of strings and how they are used and stored in x86 Assembly.

Condition Codes: How x86 Handles Condition Codes Generated by the CPU and Why They MatterDuration: 30:01

This video covers conditional codes that are used to store state on the processor CPU. We'll look at what the different codes mean and how to affect their state.

Meet the author

Stephanie Domas

LinkedIn

Stephanie Domas is Executive Vice President at MedSec. In this role, she leads the development of cybersecurity products and services to support medical device manufacturers on design, architecture, security risk management, regulatory filings, penetration testing and execution of security best practices in the development of medical devices, as well as vulnerability and asset management of connected medical devices in hospitals.

Mrs. Domas has spent 10+ years doing security research at the x86 level. She is emphatic that whether your goal is to be a better developer, security researcher or reverse engineer, a knowledge of assembly is crucial. She is passionate about spreading the joy of x86 and routinely teaches trainings and speaks on x86 assembly at security events such as Blackhat, Defcon and Derbycon.

Train on your schedule

Personal
Teams

Infosec Skills subscription

Monthly
Annually
  • 700+ courses
  • 100s of hands-on labs and projects
  • 80+ role-based and custom learning paths
  • Skill assessments
  • Custom certification practice exams
  • Cloud-hosted cyber ranges
  • Infosec peer community support

Infosec Skills boot camp

Request a quote for pricing

 

Request Quote Browse Boot Camps
  • All Infosec Skills content from the minute you enroll to 90 days following your boot camp
  • Live, instructor-led training (available in-person or live online)
  • In-depth boot camp prep course
  • Certification exam voucher
  • 100% Satisfaction Guarantee
  • Exam Pass Guarantee

Infosec Skills subscription

Annual

$599 per learner / year

Request Quote Free Team Trial
  • 700+ courses
  • 100s of hands-on labs and projects
  • 80+ role-based and custom learning paths
  • Skill assessments
  • Custom certification practice exams
  • Cloud-hosted cyber ranges
  • Team administration and reporting
  • Transferable licenses
  • Dedicated client success manager

Infosec Skills boot camp

Request a quote for pricing

 

Request Quote Browse Boot Camps
  • Team boot camp discounts
  • All Infosec Skills content from the minute your team enrolls to 90 days following their boot camp
  • Live, instructor-led training (available onsite, in-person or live online)
  • In-depth boot camp prep course
  • Certification exam vouchers
  • 100% Satisfaction Guarantee
  • Knowledge Transfer Guarantee
  • Exam Pass Guarantee

Award-winning training that you can trust

Best Software - Highest Satisfaction

Best Software - Highest Satisfaction

Infosec Skills

Best IT Security-related Training Program

Best IT Security-related Training Program

Infosec Skills

Best Cybersecurity Education Provider & Best Security Education Platform

Best Cybersecurity Education Provider & Best Security Education Platform

Infosec Skills

Most Innovative Product - Cybersecurity Training for Infosec Professionals

Most Innovative Product - Cybersecurity Training for Infosec Professionals

Infosec Skills

Global Excellence - Cyber Security Education & Training

Global Excellence - Cyber Security Education & Training

Infosec Skills

Exceptional learning experiences powered by LX Labs cyber expertise

Infosec Skills courses and labs are powered by LX Labs — our elite team of cyber SMEs, learning specialists and community of top-ranked security instructors, published authors and sought-after industry leaders. We rigorously vet all Infosec Skills training resources to guarantee they meet certification and compliance requirements and align with recognized guidelines like the NICE Cybersecurity Workforce Framework.

LX Labs