Aug 21Understanding Heap Memory Allocation in C — sbrk and brkIn this tutorial, we will explore process memory to better understand how memory is allocated on the heap in C. To start, let’s take a look at the general memory structure of a process. Stack Memory When a function is called, the stack memory grows to…Programming3 min readProgramming3 min read
Aug 13Learning x86 with NASM — Working with Characters, Lists and StringsIn this article, we will create a program that works with characters, strings, and lists using the .data section. Declaring Characters in NASM x86 In x86, we can declare data of different sizes in the .data section. To declare a character, we need to consider what size a character…Assembly Language3 min readAssembly Language3 min read
Jun 19Member-onlyIntroduction to System Design: What is Maintainability?When you develop software, you must continue maintaining the software you created until it reaches its end of life. The maintenance phase of the software life-cycle is often longer and more expensive than the development phase. Due to this, you must design software so that it is easily maintainable. We…System Design Concepts3 min readSystem Design Concepts3 min read
Jun 19Member-onlyIntroduction to System Design: What is Scalability?Consider an application where the number of users can fluctuate daily. This situation often occurs in web applications and other publicly available products. As the number of users increases, the number of requests and volume of data handled by the application increase. …System Design Concepts3 min readSystem Design Concepts3 min read
Jun 19Member-onlyIntroduction to System Design: What is ReliabilityReliability means that a system continues to work correctly for an application, even when things go wrong. The things that could go wrong in an application are called faults. A system that can tolerate faults is called fault-tolerant or resilient. A system’s requirements for fault tolerance can vary based on…Reliability3 min readReliability3 min read
Mar 15Member-onlyIntroduction to Reverse Engineering — Understanding Basic Compiled CodeThis article will explore how to use basic tools like objdump to view the assembly instructions related to a compiled binary. To start with objdump, we will first create a simple C program to compile and disassemble. …Reverse Engineering3 min readReverse Engineering3 min read
Jun 1, 2022Member-onlyLearning x86 with NASM — Working with Data and Stack MemoryIn this article, we will create a program that stores simple numeric data using the .data section. We will first look at the different methods of declaring data. …Programming4 min readProgramming4 min read
May 31, 2022Member-onlyLearning x86 with NASM — Your First ProgramIn this article, we will create a simple x86 assembly program using the NASM assembler on Linux. Our program will trigger an exit system call. The exit system call with quit our program, setting a status code on exit. …Assembly Language4 min readAssembly Language4 min read
Published inCodeX·Aug 2, 2021Member-onlyIntroduction to Assembly Programming in ARM — Basic ArithmeticIn any programming language, it is essential to know how to manipulate numeric values. In assembly, there are a number of operations available to help us add, subtract, and multiple numbers. …Assembly Language4 min readAssembly Language4 min read
Published inCodeX·Jul 30, 2021Member-onlyIntroduction to Assembly Programming in ARM — Addressing ModesTo be able to store and access data efficiently, ARM provides us with a set of addressing modes. An addressing mode is a rule that is used to interpret or modify data provided to an instruction. …Assembly Language6 min readAssembly Language6 min read
