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New posts in x86
What's the point of the VPERMILPS instruction (_mm_permute_ps)?
Sep 17, 2021
assembly
x86
avx
instruction-set
mov eax, large fs:30h
Feb 16, 2020
debugging
assembly
x86
ida
mov
SIMD instructions for floating point equality comparison (with NaN == NaN)
Dec 24, 2019
assembly
floating-point
x86
x86-64
simd
intel
Intel Intrinsics guide - Latency and Throughput
Nov 07, 2020
performance
x86
intel
sse
intrinsics
Sum reduction of unsigned bytes without overflow, using SSE2 on Intel
Apr 12, 2018
x86
sse
simd
sse2
sse3
Can the Intel performance monitor counters be used to measure memory bandwidth?
Nov 05, 2022
performance
x86
intel-pmu
memory-bandwidth
Parallel memory access on modern processors
Sep 21, 2022
memory
parallel-processing
x86
multicore
bus
Does [ebp*2] reference DS or SS segment?
Sep 21, 2022
assembly
x86
nasm
instructions
opcode
Using __m256d registers
Oct 18, 2022
c++
x86
intel
simd
avx
Load address calculation when using AVX2 gather instructions
Feb 15, 2022
x86
sse
simd
avx2
Why is movl preferred to movb when translating a C downcast from unsigned int to unsigned char?
Feb 01, 2022
c
assembly
gcc
x86
micro-optimization
SIMD the following code
Sep 21, 2022
c
x86
sse
simd
Linux asm("int $0x0") vs division by zero
Feb 26, 2021
c
linux
assembly
x86
How Do Assemblers Map x86 Instruction Mnemonics to Binary Machine Instructions?
Sep 20, 2022
x86
assembly
Why does the FMA _mm256_fmadd_pd() intrinsic have 3 asm mnemonics, "vfmadd132pd", "231" and "213"?
Jan 08, 2022
assembly
x86
simd
instruction-set
fma
Can I use the AVX FMA units to do bit-exact 52 bit integer multiplications?
Jun 21, 2022
floating-point
x86
simd
avx2
fma
What does asm("pause") do and why to use it
Sep 05, 2022
linux
assembly
x86
How hard is it (really) to decompile assembly code? [closed]
Sep 20, 2022
c
assembly
x86
reverse-engineering
decompiling
The difference between cmpl and cmp
Mar 14, 2022
assembly
x86
x86-64
att
instructions
How does PAE (Physical Address Extension) enable an address space larger than 4GB?
Feb 16, 2022
memory
memory-management
x86
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