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Use this for code written in any assembly language. Assembly-language questions also need a tag to indicate the target processor's instruction set architecture (ISA).

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I'm interested if the code below could be further enhanced for out-of-order execution. Function inputs: rcx = pointer to a 2 by 64 byte table to multiply 64 bytes ...
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You can see it live here: ...
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The task is to do a byte-by-byte comparison and print whether the files are equal or not. Code: ...
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I am trying to determine the parity of the result of a complex calculation involving two uint64_t variables, value_a and ...
wepajakeg's user avatar
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1 answer
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I'm new to ARM assembly, and I want to improve myself. Here is code that I wrote. It computes and returns the factorial of the integer passed in r0. Any suggestion ...
MaaaaathiiiiiiiiiiEU's user avatar
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2 answers
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I've written the following code in assembly, which I then convert to machine opcodes and inject into a process with VirtualAlloc at runtime. This allows me to ...
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6 votes
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As a way to refresh my knowledge on assembly, I tried to compile the below C program to x86 assembly by hand. ...
The Rizzler's user avatar
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2 votes
1 answer
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Although I've used assembly quite a bit for some simply things, I feel like I've never properly learnt how to write it idiomatically, by which I mean: which variables to use where, how best to ...
Jacob Garby's user avatar
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1 answer
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TIMBO 2023's user avatar
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I am still new to rust, so any comment about what is the rust way of doing things is welcome. this is a hand-rolled implementation of fibers or user-land context-switching. ...
Ralender's user avatar
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I'm new to assembly and I've just finished this guessing game that I wanted to make to improve my skills in this language. It runs in a Unix environment and does the following: generates a random ...
Abel Gérard's user avatar
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1 answer
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https://github.com/speedrun-program/amnesia_load_screen_tool/blob/main/code_injection.cpp https://github.com/speedrun-program/amnesia_load_screen_tool/blob/main/file_helper.h ...
my_stack_exchange_account's user avatar
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2 answers
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Context This program has been created to "fix" files originating from Cobol databases. In Cobol, files extracted via something called a "copy" have the same number of characters ...
Itération 122442's user avatar
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2 answers
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I am a beginner in assembly and would like to know ways I could improve my code. I am talking more about assembly specific things and less the logic e.g. what I could've written better, like loops <...
Jocomol's user avatar
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This is some assembly code I've written to add two base-10 numbers. The input and output are represented as null-terminated ASCII strings, with digits in big-endian order. I have also provided ...
avighnac's user avatar
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3 votes
1 answer
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I'm an amateur at assembly, but am trying to get better at it. For fun, I decided to write code that takes in a char array and increments the number represented in binary. Here are a few input-output ...
avighnac's user avatar
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I`m currently trying to delve into x64 assembly under windows using NASM, and created a minimalistic "Hello World" application. It is mainly meant as an educational resource for me and ...
RaphM's user avatar
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4 votes
1 answer
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I started learning assembly some days ago and I wrote my first program today. Nothing exceptional here: some user inputs, strings manipulations, integer to string conversion etc... The only purpose ...
Etienne Armangau's user avatar
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1 vote
1 answer
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This is a file dump program written in assembly that displays 320 bytes at a time in 20 lines. It shows the hex code for each character and also the string At the start of the program it asks for the ...
user259137's user avatar
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3 votes
1 answer
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I recently made a program with C++ and ASM. Can anyone help me make this code a more efficient one, in the ASM part or both. I would really appreciate it because I don't know every ASM instruction and ...
luisdbarros's user avatar
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5 votes
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Background Story I crafted a simple single-threaded coroutine in C, running on Linux x86-64. Short Technical Explanation 1) Task There are two types of tasks in this implementation. Main task. This ...
Ammar Faizi's user avatar
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19 votes
4 answers
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I'm writing a minimal C runtime targeting an old 32-bit Windows XP machine as a personal project. The C runtime provided by compilers is quite bloated. I wouldn't mind some library bloats up to ...
xiver77's user avatar
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0 answers
159 views

Below is a complete implementation of RC4 in ARM assembly. Unit tests pass, including comparison to C implementation and to published test vectors. I'm appreciative of all feedback, comments (things ...
SRobertJames's user avatar
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4 votes
0 answers
250 views

Dabbling a bit more with arm assembly, I wrote a few functions to handle string splitting. The goal was to write a few reusable functions that could be combined to emulate (roughly) what C ...
David C. Rankin's user avatar
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4 votes
1 answer
742 views

I'm playing with the Real mode and was trying to code something when suddenly I exceeded the 510 boundary (.org 510) of the <...
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