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#assembly-language

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KSKartikey Sharmakartikey5960.hashnode.dev

What Happens Before and After a Function Call (x86-64)

We all have seen the long-running Foo Bar Code snippet used to explain function calls. In this article, we will focus on what actually happens in a generic nested function call at the machine level. We will explore the machine instructions generated ...

Dec 26, 20258 min read

LWLee Westlakerhm.hashnode.dev

General Assembly Language Primer

When it comes to programming retro computers, four universal truths are practically immutable by contemporary standards: they’re slow and have very little memory … and uhhhh … they’re slow and have very little memory. Okay, so technically that’s only...

Sep 25, 20256 min read

UIUmer Islamblog.umerislam.codes

Assembly Language: Memory Allocation, Access, Bytes and Words.

For the CPU to operate, we must store the data we want to operate on; it is stored in RAM. The different buses of the CPU that communicate with the RAM fetch and read that data. NOTE: Please read the first blog in the series for a better understandin...

Sep 15, 20252 min read

IWIsaac Whex-dump.hashnode.dev

My Introduction to the Game Boy

Spare time Around a year and a half ago I had a lot of spare time on my hands. This was the consequence of a fairly unfortunate professional situation and my part-time enrollment in a masters degree program in electrical engineering. I had just enoug...

Sep 5, 20254 min read

SAShuja Ahmadhex0.hashnode.dev

How to Write Your First Bootloader from Scratch (No OS Needed)

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...

Aug 28, 20257 min read

CCyberSpyder028cyberspyder028.hashnode.dev

🚀 How I Made My Own Binary-Level Code Editor in Python (Like a Mini IDE)

🚀 How I Made My Own Binary-Level Code Editor in Python (Like a Mini IDE) Because sometimes, even machine code deserves its own editor. "While I'm still learning the intricacies of binary-level programming, this project represents my early explora...

Jul 27, 20253 min read

박박서경psk-study.hashnode.dev

Assembly Language Programming (7)BL,BX

Understanding BX and BL in ARM Assembly In ARM assembly, BX (Branch and Exchange) and BL (Branch with Link) are essential for function calls and dynamic branching. BL(Branch with Link) What does BL do? Calls a subroutine (function). Saves the retu...

Mar 12, 20253 min read

박박서경psk-study.hashnode.dev

Assembly Language Programming(6) MOVGE

MOVEGE Instruction in ARM Assembly MOVGE is a conditional move instruction in ARM assembly. It stands for: MOVGE → MOVE if Greater than or Equal MOVGE Rd, Rn moves the value of Rn into Rd only if the condition "Greater than or Equal (GE)" is met....

Mar 12, 20252 min read

박박서경psk-study.hashnode.dev

Assembly Language Programming(5) Condition, Loop

Condition .global _start _start: MOV R0, #3 ; Store 3 in R0 MOV R1, #2 ; Store 2 in R1 CMP R0, R1 ; Compare R0 and R1 (R0 - R1) BGT greater ; Branch to 'greater' if R0 > R1 BAL default ; Always branch to ...

Mar 12, 20254 min read

박박서경psk-study.hashnode.dev

Assembly Language Programming(4) EOR,LSL, LSR

EOR ✅ Code Analysis (ARMv7 Assembly) .global _start _start: MOV R0, #0xFF ; Store 0xFF (1111 1111) in R0 MOV R1, #22 ; Store 22 (0001 0110) in R1 EOR R2, R0, R1 ; R2 = R0 ⊕ R1 (Bitwise Exclusive OR) ✅ Meaning of EOR R2, R0, ...

Mar 12, 20255 min read

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#assembly-language

What Happens Before and After a Function Call (x86-64)

General Assembly Language Primer

Assembly Language: Memory Allocation, Access, Bytes and Words.

My Introduction to the Game Boy

How to Write Your First Bootloader from Scratch (No OS Needed)

🚀 How I Made My Own Binary-Level Code Editor in Python (Like a Mini IDE)

Assembly Language Programming (7)BL,BX

Assembly Language Programming(6) MOVGE

Assembly Language Programming(5) Condition, Loop

Assembly Language Programming(4) EOR,LSL, LSR