Computer Architecture

Making System Calls in x86-64 Assembly

Watch now | Privilege levels, syscall conventions, and how assembly code talks to the Linux kernel

Jun 16 •

Abhinav Upadhyay

31:44

One Law to Rule All Code Optimizations

A systems-level reasoning model for understanding why optimizations succeed or fail.

Jun 8 •

Abhinav Upadhyay

Debugging X86-64 Assembly with GDB

Watch now (20 mins) | Learn how to inspect registers, step through instructions, and investigate crashes using GDB.

May 26 •

Abhinav Upadhyay

19:40

Building (and Breaking) Your First X86 Assembly Program

We build a minimal X86 assembly program, run it… and hit a crash. But that crash is exactly what makes this program worth writing.

May 16 •

Abhinav Upadhyay

The System-Level Foundation of Assembly

Tracing how the CPU, OS, and ELF format shape the structure of your assembly code

May 5 •

Abhinav Upadhyay

Binary Arithmetic and Bitwise Operations for Systems Programming

Understand how computers represent numbers and perform operations at the bit level before diving into assembly

Apr 12 •

Abhinav Upadhyay

Understanding Computer Organization from First Principles

A ground-up model of how computers execute code, starting from logic gates and ending at the instruction cycle.

Apr 5 •

Abhinav Upadhyay

Hardware-Aware Coding: CPU Architecture Concepts Every Developer Should Know

Write faster code by understanding how it flows through your CPU

Mar 21 •

Abhinav Upadhyay

Context Switching and Performance: What Every Developer Should Know

Understand how context switching affects CPU registers, caches, TLB, and pipeline performance, and learn strategies to mitigate performance penalties

Dec 12, 2024 •

Abhinav Upadhyay

Two Threads, One Core: How Simultaneous Multithreading Works Under the Hood

Ever wondered how your CPU handles two tasks at once? Discover the magic of Simultaneous Multithreading and see what’s really going on inside.

Jul 24, 2024 •

Abhinav Upadhyay

The Architecture of Groq's LPU

What powers the ground breaking performance of Groq's Langauge Processing Unit?

Mar 1, 2024 •

Abhinav Upadhyay

What Every Developer Should Know About GPU Computing

A primer on GPU architecture and computing

Oct 18, 2023 •

Abhinav Upadhyay

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