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New posts in x86-64
FreeBSD syscall clobbering more registers than Linux? Inline asm different behaviour between optimization levels
Sep 05, 2022
c
x86-64
system-calls
freebsd
inline-assembly
x86 instruction encoding how to choose opcode
Sep 19, 2022
assembly
compiler-construction
x86-64
disassembly
Get size of x86-64 instruction
Nov 12, 2022
c
assembly
x86-64
How avoid cache line invalidation from multiple threads writing to a shared array?
Nov 11, 2022
c
multithreading
caching
x86-64
Why does Linux favor 0x7f mappings?
Jun 10, 2022
linux-kernel
x86
x86-64
virtual-memory
When does Linux x86-64 syscall clobber %r8, %r9 and %r10?
Aug 22, 2022
linux
assembly
x86-64
system-calls
GCC code that seems to break inline assembly rules but an expert believes otherwise
Aug 30, 2022
gcc
x86
x86-64
inline-assembly
osdev
Push and Pop on AMD64 [duplicate]
Apr 23, 2022
assembly
stack
x86-64
Move quadword between xmm and general-purpose register in ml64?
Aug 09, 2018
assembly
x86-64
masm
sse
gnu-assembler
What does data16 mean in objdump output?
Apr 14, 2020
assembly
x86-64
objdump
Efficient mod 3 in x86 assembly
Jan 22, 2020
assembly
x86-64
micro-optimization
Opposite of cache prefetch hint
Apr 08, 2022
performance
caching
assembly
x86
x86-64
SSE and iostream: wrong output for floating point types
Oct 11, 2020
c++
floating-point
x86-64
sse
libstdc++
Understanding C program in Assembly
Dec 08, 2019
c
assembly
x86-64
Assembly/Linking problem with nasm and ld
Sep 25, 2022
linux
assembly
linker
x86-64
nasm
Is mmap deterministic if ASLR is disabled?
Aug 31, 2022
c
linux
gcc
x86-64
mmap
Where does the SSE instructions outperform normal instructions
Oct 27, 2017
c
x86-64
sse
Delphi SizeOf(NativeInt) vs C sizeof(int) on x86-64. Why the Size difference?
Apr 27, 2022
c
delphi
x86-64
pascal
sizeof
Why is there no fused multiply-add for general-purpose registers on x86_64 CPUs?
Aug 29, 2022
x86-64
intel
cpu-architecture
instruction-set
amd-processor
X86: What does `movsxd rdx,edx` instruction mean?
Mar 05, 2022
assembly
x86-64
mov
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