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New posts in assembly
Why do x86-64 instructions on 32-bit registers zero the upper part of the full 64-bit register?
Aug 15, 2022
assembly
x86
x86-64
cpu-registers
zero-extension
What is the best way to set a register to zero in x86 assembly: xor, mov or and?
Dec 14, 2021
performance
assembly
optimization
x86
micro-optimization
Why do ARM chips have an instruction with Javascript in the name (FJCVTZS)?
May 13, 2021
javascript
assembly
arm
How do you use gcc to generate assembly code in Intel syntax?
Aug 15, 2022
gcc
x86
gnu
intel
assembly
Can num++ be atomic for 'int num'?
Aug 15, 2022
c++
c
multithreading
assembly
atomic
What is the difference between MOV and LEA?
Aug 15, 2022
assembly
x86
instruction-set
What are the calling conventions for UNIX & Linux system calls (and user-space functions) on i386 and x86-64
Aug 15, 2022
linux
assembly
x86-64
calling-convention
abi
The point of test %eax %eax [duplicate]
Aug 14, 2022
assembly
x86
att
Why does GCC generate such radically different assembly for nearly the same C code?
Aug 14, 2022
c
gcc
assembly
x86
compiler-optimization
Is inline assembly language slower than native C++ code?
Aug 14, 2022
c++
c
performance
assembly
Show current assembly instruction in GDB
Aug 14, 2022
assembly
gdb
Protecting executable from reverse engineering?
Oct 18, 2022
c++
c
obfuscation
assembly
Why aren't programs written in Assembly more often? [closed]
Aug 14, 2022
c
programming-languages
assembly
Why would introducing useless MOV instructions speed up a tight loop in x86_64 assembly?
Oct 08, 2022
performance
optimization
assembly
x86-64
freepascal
Why does GCC use multiplication by a strange number in implementing integer division?
Aug 16, 2022
c
gcc
assembly
x86-64
integer-division
intel
Assembly code vs Machine code vs Object code?
Aug 14, 2022
assembly
machine-code
object-code
What is exactly the base pointer and stack pointer? To what do they point?
Aug 14, 2022
c
assembly
x86
stack-frame
stack-pointer
Is 'switch' faster than 'if'?
Aug 14, 2022
c
performance
switch-statement
assembly
jump-table
What is a retpoline and how does it work?
Aug 14, 2022
security
assembly
x86
cpu-architecture
spectre
What does multicore assembly language look like?
Dec 14, 2021
assembly
x86
cpu
multicore
smp
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