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New posts in x86-64
Reading and writing to x86 and x64 registry keys from the same application
Aug 31, 2019
c#
.net
registry
x86-64
what does the cmpq instruction do?
Oct 16, 2022
assembly
x86
x86-64
How do I interpet this x86_64 assembly opcode?
Sep 18, 2022
assembly
x86-64
Which inline assembly code is correct for rdtscp?
Jun 17, 2022
gcc
assembly
x86-64
inline-assembly
Compilers: Understanding assembly code generated from small programs
Aug 19, 2022
c
linux
gcc
x86-64
disassembly
What does clang's `-Ofast` option do in practical terms especially for any differences from gcc?
Aug 31, 2022
c++
floating-point
clang
x86-64
compiler-optimization
intel
Why is `std::copy` 5x (!) slower than `memcpy` for reading one int from a char buffer, in my test program?
Sep 18, 2022
c++
performance
x86-64
benchmarking
compiler-optimization
Why does MSVC emit a useless MOVSX before performing this Bit Test?
Mar 30, 2018
c++
visual-studio
assembly
x86
x86-64
Why is imul used for multiplying unsigned numbers?
Aug 30, 2022
assembly
x86
x86-64
multiplication
unsigned
64-bit mode does not support 32-bit PUSH and POP instructions [duplicate]
Sep 18, 2022
assembly
nasm
x86-64
JMP instruction - Hex code
Sep 20, 2022
assembly
hex
x86-64
machine-code
close() x86_64 system call weird return value
Oct 04, 2021
c
kernel
x86-64
system-calls
How do I gain measurable benefit from prefetch intrinsics?
Sep 17, 2022
performance
x86-64
sse
simd
prefetch
Why does this function run so much faster when it makes an extra read of memory?
Mar 27, 2022
performance
assembly
clang
x86-64
cpu-architecture
Linux: Large int array: mmap vs seek file?
Sep 17, 2022
linux
memory
memory-management
filesystems
x86-64
Forcing the compiler to use a certain register for a certain variable
Apr 20, 2018
c
linux
gcc
clang
x86-64
Is it worth bothering to align AVX-256 memory stores?
Mar 16, 2022
performance
assembly
x86-64
memory-alignment
avx
intel
How to add x64 (or Any CPU) as a build option in Visual Studio 2010 (from console application to class library)
Sep 17, 2022
visual-studio-2010
projects-and-solutions
x86-64
anycpu
On which platforms does integer divide by zero trigger a floating point exception?
Apr 05, 2022
c++
c
error-handling
x86-64
divide-by-zero
intel
Nasm - Symbol `printf' causes overflow in R_X86_64_PC32 relocation [duplicate]
Jul 10, 2020
linux
gcc
segmentation-fault
nasm
x86-64
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