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New posts in x86-64
The difference between cmpl and cmp
Mar 14, 2022
assembly
x86
x86-64
att
instructions
Why doesn't the Rust optimizer remove those useless instructions (tested on Godbolt Compiler Explorer)?
Mar 09, 2020
assembly
rust
x86-64
llvm-codegen
Why does compiler generate additional sqrts in the compiled assembly code
Jan 27, 2022
c
gcc
assembly
x86-64
compiler-optimization
C++ on x86-64: when are structs/classes passed and returned in registers?
Sep 20, 2022
c++
assembly
x86-64
calling-convention
abi
Microarchitectural zeroing of a register via the register renamer: performance versus a mov?
Apr 09, 2022
assembly
x86
x86-64
cpu-architecture
First time learning assembly, is this saying a word size is 8-bytes?
Sep 20, 2022
assembly
x86
size
word
x86-64
The advantages of using 32bit registers/instructions in x86-64
Sep 19, 2022
gcc
assembly
x86-64
micro-optimization
JRE 32bit vs 64bit
Oct 01, 2022
java
x86
x86-64
jvm-hotspot
Got "Access is denied" when I tried to install 64-bit mongodb in Windows server 2008
Aug 02, 2018
mongodb
x86-64
windows-server-2008-r2
Count each bit-position separately over many 64-bit bitmasks, with AVX but not AVX2
Oct 31, 2022
c
optimization
x86
x86-64
simd
Why does loop alignment on 32 byte make code faster?
Mar 15, 2022
performance
gcc
clang
x86-64
benchmarking
Handling calls to (potentially) far away ahead-of-time compiled functions from JITed code
Jan 25, 2022
assembly
rust
compiler-construction
x86-64
jit
64-bit registers under 32-bit windows
Oct 19, 2018
assembly
x86
x86-64
How to read input from STDIN in x86_64 assembly?
Sep 19, 2022
assembly
stdin
x86-64
GCC 4.4: Avoid range check on switch/case statement in gcc?
Aug 01, 2022
c
assembly
switch-statement
x86-64
gcc4.4
intel
Why is typeA == typeB slower than typeA == typeof(TypeB)?
Sep 19, 2022
c#
.net
assembly
x86-64
Running 32 bit assembly code on a 64 bit Linux & 64 bit Processor : Explain the anomaly
Sep 19, 2022
linux
assembly
gdb
x86
x86-64
Why are the system call numbers different in amd64 linux?
Sep 19, 2022
linux
naming-conventions
x86-64
system-calls
What is the difference between assembly on mac and assembly on linux?
Nov 06, 2022
macos
gcc
assembly
x86
x86-64
How do RIP-relative variable references like "[RIP + _a]" in x86-64 GAS Intel-syntax work?
Feb 08, 2022
assembly
x86-64
gnu-assembler
addressing-mode
relative-addressing
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