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New posts in x86-64
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
Lightweight method to use Amd64 instructions under 32-bit Windows?
Feb 03, 2022
cpu-architecture
win32-process
x86-64
zero out top 32 bits of 64-bit register
Jul 31, 2019
assembly
x86-64
machine-code
How to enter 64-bit mode on a x86_64
Feb 26, 2022
assembly
x86-64
bare-metal
x86-64 usage of LFENCE
Dec 23, 2021
assembly
x86-64
cpu-architecture
atomic
Under what conditions do I need to set up SEH unwind info for an x86-64 assembly function?
May 15, 2022
windows
x86
nasm
x86-64
seh
Useless jp / jnp assembly instruction on x86_64
Aug 25, 2022
c
assembly
llvm
x86-64
instructions
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