All Questions
8 questions
5votes
1answer
903views
Speed up strlen using SWAR in x86-64 assembly
The asm function strlen receives the link to a string as a char - Array. To do so, the function may use SWAR on general purpose register, but without using ...
3votes
1answer
1kviews
Sum two vectors in x86 assembly
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 ...
4votes
0answers
941views
Binary to hex in ARM64 SIMD assembly
As an exercise in learning ARM64 assembly (aka AArch64), I wrote this function to convert 64-bit binary to hexadecimal with SIMD instructions. I'm most interested in feedback on the algorithm, ...
5votes
2answers
506views
SSE Assembly vs GCC Compiler - Dot Product
I am currently taking an introductory course in computer architecture. Our goal was to write a dot-product function in x86 Assembly which would use SSE and SIMD (without AVX). I am not to that ...
- 595
7votes
1answer
2kviews
SIMD memcpy assembler implementation
I am fairly rusty with assembler, let alone the AT&T syntax. I would appreciate it if someone with more experience could please review the following memcpy implementation. Note that this will only ...
- 173
2votes
0answers
99views
Write 16x16 bitmap to frame buffer
The following code writes a 16x16 bitmap to a framebuffer using up to AVX2 instuctions. I'm sure it can be improved with AVX512 ...
- 285
1vote
1answer
379views
HPC kernel for DGEMM: compiler v.s. assembly
This is a correct version, for computing a small matrix multiplication: C += A * B, where C is ...
- 129
7votes
1answer
535views
Writing SIMD libraries for C++ on FASM in x86-64 Linux
I have recently started a project of SIMD libraries development for C++ on FASM for x86-64 Linux. I would be glad to hear any opinion or feedback about the project, cleanness of the code and ...
- 171
