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New posts in x86
Is the PADDD instruction actually supported by MMX, even though it's missing from Intel's manual?
Dec 05, 2021
assembly
x86
mmx
Does Skylake need vzeroupper for turbo clocks to recover after a 512-bit instruction that only reads a ZMM register, writing a k mask?
Oct 25, 2020
assembly
x86
intel
micro-optimization
avx512
Win32 EXCEPTION_INT_OVERFLOW vs EXCEPTION_INT_DIVIDE_BY_ZERO
Dec 09, 2019
windows
exception
assembly
x86
intel
Free IDE + assembler + software emulator for x86 (MASM) assembly? [closed]
Mar 21, 2017
x86
emulation
assembly
Hardware performance counter APIs for Windows
Oct 29, 2022
c
performance
profiling
x86
x86-64
Stack alignment on x86
Sep 25, 2022
linux
gcc
x86
sse
LOCK prefix vs MESI protocol?
Oct 24, 2022
multithreading
x86
locking
cpu
mesi
Optimize for fast multiplication but slow addition: FMA and doubledouble
Oct 09, 2019
assembly
x86
floating-point
fma
double-double-arithmetic
Why is a function executed from the same memory address each time?
Oct 21, 2022
memory-management
x86
disassembly
relocation
Passing a pointer to an assembly function
Nov 01, 2022
assembly
x86
att
order for encoding x86 instruction prefix bytes
Feb 02, 2020
assembly
x86
X86 instructions to power off computer in real mode?
Oct 31, 2014
assembly
x86
dos
intel
Cache-as-Ram (no fill mode) Executable Code
Nov 13, 2022
x86
cpu-architecture
cpu-cache
osdev
Why gcc autovectorization does not work on convolution matrix biger than 3x3?
Mar 26, 2021
c
gcc
x86
compiler-optimization
auto-vectorization
while(i--) optimization by gcc and clang: why don't they use sub / jnc?
Dec 15, 2019
c
performance
gcc
assembly
x86
Does vzeroall zero registers ymm16 to ymm31?
Nov 20, 2022
assembly
x86
intel
avx
avx512
Running code on different processor (x86 assembly)
Aug 29, 2021
assembly
x86
multiprocessing
smp
real-mode
Real mode BIOS routine and Protected Mode
Aug 24, 2022
assembly
operating-system
x86
x86-16
protected-mode
intel
How to use libelf to generate an ELF file for my own compiler?
Oct 30, 2022
c
file
assembly
x86
elf
Relation between bytecode instructions and processor operations
Feb 20, 2021
java
x86
bytecode
processor
atomic
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