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New posts in x86
Interpreting GDB registers (SSE registers)
Oct 24, 2022
unix
x86
gdb
sse
What does this instruction do ( REP MOVS BYTE PTR ES:[EDI],BYTE PTR DS: )?
May 03, 2022
assembly
x86
instructions
Subtracting registers with an LEA instruction?
Nov 04, 2022
assembly
x86
x86-64
pointer-arithmetic
addressing-mode
How does this sqrt approximation inline assembly function work?
Apr 14, 2020
assembly
optimization
x86
square-root
sar
Do compilers usually use registers for their "intended" purpose?
Jan 02, 2020
assembly
compilation
compiler-construction
x86
x86-64
ADC instruction in asm
Sep 05, 2022
assembly
x86
cpu-registers
carryflag
Can an instruction be in two addressing modes at the same time?
May 14, 2022
assembly
x86
addressing-mode
Why isn't my root directory being loaded? (FAT12)
Jun 13, 2022
assembly
x86
nasm
bootloader
fat
How does "+&r" differ from "+r"?
May 01, 2022
c
gcc
x86
inline-assembly
x86 Assembly: Data in the Text Section
May 29, 2022
assembly
x86
shellcode
Do locked instructions provide a barrier between weakly-ordered accesses?
Feb 07, 2022
multithreading
x86
intel
memory-model
memory-fences
Why is L1 write access access worst with two threads in the same core (hyperthreading) than two cores?
May 30, 2022
c++
multithreading
x86
Pipeline on Registers calculation
Apr 06, 2022
c++
assembly
x86
cpu-architecture
How to optimize DivMod for a constant divisor of 10
Oct 29, 2022
delphi
x86
inline-assembly
micro-optimization
Are load ops deallocated from the RS when they dispatch, complete or some other time?
Apr 23, 2022
x86
intel
cpu-architecture
micro-architecture
Why does int addition though pointers take one less x86 instruction than int multiplication through pointers?
May 17, 2022
c++
pointers
assembly
x86
instruction-set
Configure ASP.NET to use x86 on x64 Windows
Oct 29, 2022
asp.net
ms-access
x86
jet
windows64
How can I explain the behavior of the following shellcode exploit?
Sep 25, 2022
assembly
x86
buffer-overflow
exploit
shellcode
Process Page Tables
Nov 04, 2022
c
windows
assembly
x86
kernel
Confusion with how Win32 API calls work in assembly
Jun 25, 2022
windows
winapi
assembly
x86
nasm
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