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New posts in x86
Exactly what cases does the gcc execstack flag allow and how does it enforce it?
Oct 31, 2022
c
linux
gcc
x86
shellcode
x86 instruction encoding tables
Apr 21, 2022
code-generation
x86
assembly
disassembly
How can I detect the number of cores in x86 assembly?
Oct 25, 2022
assembly
operating-system
x86
X86 Assembly Instruction Pointer Addressing
Nov 10, 2021
c
assembly
x86
What do FLAGS register components mean in VS 2013?
Sep 24, 2021
visual-studio
assembly
x86
visual-studio-2013
Who loads the BIOS and the memory map during boot-up
Aug 25, 2022
memory
x86
boot
bios
memory-mapping
Fastest way to unpack 32 bits to a 32 byte SIMD vector
Jan 01, 2017
x86
simd
avx
bitmask
avx2
Convert ARM instruction to i386 instruction
Nov 17, 2022
architecture
x86
arm
x86 assembly multiply and divide instruction operands, 16-bit and higher
Nov 10, 2022
assembly
x86
division
multiplication
Do FP operations give EXACTLY the same result on various x86 CPUs?
Sep 05, 2022
x86
floating-accuracy
SSE runs slow after using AVX
Apr 26, 2021
c++
gcc
x86
avx
sse2
How would fabs(double) be implemented on x86? Is it an expensive operation?
Nov 17, 2022
floating-point
x86
absolute-value
What is instruction fusion in contemporary x86 processors?
Mar 29, 2021
assembly
x86
cpu-architecture
How do I compile assembly routines for use with a C program (GNU assembler)?
Aug 17, 2022
assembly
linker
x86
compilation
Getting floating point exception while trying to use div in assembly
Aug 24, 2022
assembly
x86
Responsibility of stack alignment in 32-bit x86 assembly
Sep 07, 2022
linux
gcc
assembly
x86
memory-alignment
Can the x86 do FPU operations independently or in parallel?
Nov 12, 2022
assembly
x86
floating-point
fpu
pipelining
Storing two x86 32 bit registers into 128 bit xmm register
Mar 28, 2022
assembly
x86
simd
sse
SSE optimized emulation of 64-bit integers
Dec 09, 2021
c++
optimization
x86
64-bit
sse
What does the /4 mean in FF /4?
Aug 18, 2019
assembly
x86
machine-code
opcode
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