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New posts in x86-64
AVX2 instructions latency and throughput
Mar 22, 2022
performance
x86
x86-64
simd
avx2
What does movslq do?
Oct 28, 2022
assembly
x86-64
att
sign-extension
What does 'REX' stand for in an x86-64 REX prefix?
Aug 22, 2022
assembly
x86
x86-64
intel
machine-code
Does glibc (GNU C Library) provide a way to obtain the size of an allocated memory block?
Mar 12, 2022
c
linux
malloc
x86-64
glibc
In assembly, how to add integers without destroying either operand?
Aug 28, 2022
assembly
x86-64
avx
gnu-assembler
32-bit process’s address space on 64-bit linux
Nov 02, 2022
linux
memory
linux-kernel
x86-64
32bit-64bit
Linux x64: why does r10 come before r8 and r9 in syscalls?
Jul 11, 2014
linux
assembly
x86-64
system-calls
calling-convention
How to detect architecture in NASM at compile time to have one source code for both x64 and x86?
May 31, 2018
assembly
x86
preprocessor
nasm
x86-64
How should the byte sequence 0x40 0x55 be interpreted by an x86-64 emulator?
Jan 05, 2020
assembly
x86-64
How many clock cycles does cost AVX/SSE exponentiation on modern x86_64 CPU?
Nov 01, 2022
c++
x86
x86-64
sse
avx
GCC wrongly optimizes a pointer-equality test for a variable at a custom address
Apr 09, 2022
c
gcc
optimization
x86
x86-64
Assembly why is "lea eax, [eax + eax*const]; shl eax, eax, const;" combined faster than "imul eax, eax, const" according to gcc -O2?
May 15, 2022
c
assembly
optimization
x86-64
cpu-architecture
Performance of modern processor
Apr 05, 2022
performance
assembly
x86-64
amd-processor
main and stack alignment
Jan 15, 2017
linux
gcc
assembly
nasm
x86-64
Why does llvm and gcc use different function prologs on x86 64?
Mar 20, 2021
c
gcc
assembly
llvm
x86-64
LFENCE is really useless vs. Spectre #2?
Jul 11, 2021
assembly
memory
x86
x86-64
cpu-architecture
x86 128-bit atomic ops
Jun 22, 2021
assembly
x86
atomic
x86-64
Detail about MSR_GS_BASE in linux x86 64
Sep 11, 2021
assembly
linux-kernel
x86-64
memory-segmentation
Detect if the processor is 64-bit under 32 bit OS
Jul 21, 2022
c++
64-bit
x86-64
32-bit
64 bit features in a 32 bit application?
Sep 22, 2022
c++
visual-studio-2010
64-bit
x86-64
sse
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