Dec 10, 2025 · 3 min read · This mini project determines whether a given input (a command line argument) is even or odd. We begin once again by including our macro file, mymacros.inc, initialized variables and conversion of command line argument to integer (Read more on Working...
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Dec 9, 2025 · 4 min read · In this mini project, we code the sum of the first n integers using Gauss’ formula. Short Preview of Gauss’ formula Say, we need to sum the first 20 positive integers. The sum, S is given as; \(S = 1+2+3+…+20\) —————- (1) Note also that the sum can b...
Join discussionOct 31, 2025 · 2 min read · In our previous lesson, we learned about how to get command line arguments. Sometimes, we may want the command line arguments passed to be of type integer instead of string for further computation or processing. Therefore, there is the inherent need ...
Join discussionOct 31, 2025 · 2 min read · Working with command line arguments in NASM x86_64 is relatively easy. One only needs to know the value contained in the rsp register to extract command line arguments. That is mov r8, [rsp] ; Get the number of command line arguments and move it to r...
Join discussionOct 21, 2025 · 2 min read · This article discusses how to write and build x86 code applications, and to run. Also how to do the reverse - obtain the assembly code from the executable file. We will use nasm and objdump for this process I am using the Labs from the book “X86-SO...
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Sep 11, 2025 · 3 min read · When programming in NASM x64 assembly, one common beginner’s task is to determine the length of a string. Unlike higher-level languages such as Python or C#, assembly does not come with built-in string functions, you have to either calculate the leng...
Join discussionAug 28, 2025 · 7 min read · So it all started one day when this crazy thought struck my mind: "Can someone write their own operating system from scratch?" I thought to myself that even if it was possible, it must be really hard and time-consuming. I booted up my desktop running...
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Jul 19, 2025 · 2 min read · In our previous lesson, we learnt how to use and implement macros to make our Nasm x64 code efficient and non-repetitive. Intro to Macros Arrays Are 0-Indexed (Like Any Real Language 🙂) In Nasm x64, arrays (including strings) are 0-indexed, just lik...
Join discussionJul 18, 2025 · 3 min read · Macros are relatively easy to implement in Nasm x86-64. Without much ado, let us head straight to it. We have already seen how to print “Hello World” in Nasm x64. ; Print Hello World to screen in Nasm x64 section .data msg db "Hello World!", 0, ...
Join discussionJun 3, 2025 · 3 min read · So, you're peeking under the hood of your machine—brave move. You're knee-deep in assembly or debugging something low-level, and suddenly you’re staring down at names like RAX, RBX, RSP, and you're wondering: What the heck are these things? Are they ...
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