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New posts in x86
How is a relative JMP (x86) implemented in an Assembler?
Jan 13, 2020
encoding
x86
instruction-set
SIMD/SSE newbie: simple image filtering
Jan 30, 2022
performance
image-processing
x86
sse
simd
A reference for AT&T syntax assembly floating point arithmetic
Nov 09, 2022
assembly
floating-point
x86
x86 Modrm/Sib/Displacement bytes for opcode '89'
Sep 24, 2022
assembly
x86
disassembly
How to execute x86 commands from data buffer?
Oct 27, 2019
c++
module
x86
What does the ljmp instruction do in the linux kernel fork system call?
May 26, 2022
assembly
linux-kernel
x86
gnu-assembler
att
Is there any situation where using MOVDQU and MOVUPD is better than MOVUPS?
Jun 17, 2022
assembly
x86
x86-64
intel
sse
Why is clang over-complicating my simple factorial function?
Jun 18, 2022
c++
assembly
x86
compiler-optimization
clang++
How to write a simple soundblaster 16 driver using direct write mode for a hobby OS?
Apr 19, 2021
audio
x86
operating-system
osdev
hobby-os
Is it possible to make GCC auto-vectorizer output intrinsics instead of assembly?
Dec 03, 2021
c
gcc
x86
intrinsics
auto-vectorization
Why do memory access times increase when far over CPU cache sizes
Aug 30, 2022
c++
performance
caching
memory
x86
Copying 64 bytes of memory with NT stores to one full cache line vs. 2 consecutive partial cache lines
Apr 05, 2022
c
performance
assembly
x86
avx
What is clang trying to do optimizing this simple recursive algorithm?
Mar 12, 2021
c
assembly
x86
clang
C calling convention: who cleans the stack in variadic functions vs normal functions?
Sep 06, 2022
c
x86
variadic-functions
calling-convention
cdecl
Assembly Converting MOV / MOVZX and MOVSX to C code (no inline asm)
Apr 20, 2021
c
assembly
x86
transformation
code-translation
How to map 1GB (or more) of physical memory under a 32-bit Linux kernel
Oct 23, 2019
c
linux
linux-kernel
x86
memory-mapping
Smashing Stack on Ubuntu 11.10
Apr 30, 2022
ubuntu
x86
segmentation-fault
stack
Why two bitwise or AVX instructions? [duplicate]
Jan 20, 2020
x86
bit-manipulation
avx
instructions
bitwise-or
How does the linker find the main function?
Mar 13, 2022
assembly
x86
x86-64
Can I generate AVX vectorized code using LLVM jit?
Feb 15, 2020
x86
llvm
jit
avx
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