#LowLevelProgramming

Ever wondered what happens under the hood when you run a Linux executable? I wrote a breakdown of the ELF format, what it is, what it stores, and how tools like nm, objdump & readelf let you inspect it 🧵👇 #Linux #100DaysOfCode #LowLevelProgramming

Day 53: Implemented function prologue & epilogue logic – managing stack frames, return values. #LowLevelProgramming

Day 0b111 / 0b1100100 of #LowLevelProgramming >I started watching the CMU Computer Systems lecture playlist by Bryant, O'Hallaron >Also wrote a little bit of C on (conditional compilation and other macros) >Imposter Syndrome kicked in the rest of the day

Ngl most enlightening book I have read #LowLevelProgramming

Day 0b10011 of #LowLevelProgramming Finished Chapter 5 of the book and the exercises >Read more on Registers and and register operations >Learnt the sign extension "mov" instruction of various byte sizes >Finally getting the hang of memory examination commands of GDB

Day 0b1010 of #LowlevelProgramming I felt like I went through yesterday's topics too fast ,and without understanding in depth .So I went through them again today. >Signed extension and truncation >Numeric ranges >Overflows >Integer Conversions

> a glance of my gh profile > goal: showcase rust projects 🦀 expanding on my "build your own x" plan: • open source all projects • write a series of in-depth blogposts any suggestions on what to build are highly appreciated. i'm interested in #LowLevelProgramming.

@karljohannisson That’s definitely on my backlog. My overall plan is ‘build your own x’ in Rust, open source it and start a series of blogposts. I currently have some awesome high-level oss on my github, check it out.

Day 0b1001 / 0b1100100 of #LowlevelProgramming Still going through the CMU lectures: >Read on Signed Extension and Truncating >Numeric ranges of bit sizes >Identifying overflows in signed and unsigned operations >Integer conversions of sign <--->unsigned >Modular Arithmetic

Diving into low-level computer execution! Fascinated by binary/machine code, instruction cycles, registers, and memory. Understanding the core has deepened my appreciation for computing! #LowLevelProgramming #ComputerScience #SystemsEngineering @SonaliS48033610

Day 0b1110 of #LowLevelProgramming Spent the whole Day trying to understand what the hell is going on!!! >Learnt about the Stack , stack pointer , stack base pointer. >Registers > Flags >basic System calls (write, read and exit) > Jump and Conditional Jumps I'm lacking : |

Day 0b11001 of #LowLevelProgramming Still on Shift & Bit operations and Implementing them in a complementary manner >Read on bit fields and masking >Extracting a bit field from a word >Wrote my first inline Assembly in C!! Need to read on it properly though!!🤯 Read on RTOS

Day 0b1100 of #LowlevelProgramming >Wrote a linked list in C >Read on function pointers >read more on dynamic memory allocation and malloc() I will finally sum up with information representation and manipulation this weekend and move on to Assembly Programming by Monday

Day 0b1000 / 0b1100100 of #LowlevelProgramming >Maths >Visualising two's compliment values >Learnt about #pragma when dealing with structure padding >Learnt about Unions in C (I don't understand their use case though) I'm tired of bits ,I really want to move on to Assembly

Currently looking into intrinsic functions and SIMD in C++, safe to say masking has broken me. #cpp #technology #lowlevelprogramming

Day 0b110 of 0b1100100 of #LowLevelProgramming Wrote programs that utilized : >structure padding >bitfields >bitwise operations >logical operation with hex literals Also went through the equations on on two's compliments and binary representations of negative integers

Implemented my pool allocator approx 6x faster than ordinary malloc allocation comes with very low fragmentation(till my best project). Check it out based on research paper #Cprogramming #lowlevelprogramming

Daily #LowLevelProgramming grind Started reading on Memory . Really interesting stuff !! Read on Linux Process memory & Heap regions brk & sbrk syscalls Memory Alignment, Bus errors , Segmentation faults , errno. Memory Management Unit. Memory mapping & mmap syscall.

Day 0b11011 of #LowLevelProgramming >The Implementation of bit set and test from the book was quite obscure so I had to turn to C first >Finally understood bit indexing and what ever this -> "[val + 8*rbx], rcx" meant. It took me a while >I need learn more inline ASM in C

✅ Today's Wins: 🛠️ Zig: 🛡️ Sentinels 📜 Quoted IDs 📦 Anonymous structs 🤝 Interfaces 🧩 C modules 🧠 Mem allocations 🧮 Bit manipulation 🎨 Formatting 🔍 DSA: 🚶 Linear Search 🔟Binary Search 🧩 1 Searching Problem #Coding #DSA #lowlevelprogramming

Here's a pro tip for both C and Assembly: Always comment your code for critical logic and hardware-specific interactions. It not only helps with debugging, but also makes your code valuable and maintainable for future contributors. #LowLevelProgramming