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New posts in x86-64
Assembly function address table and data under the function or in data section
Sep 19, 2025
assembly
x86
x86-64
micro-optimization
static-data
Why is it that assembling/linking in one step loses debug info for my assembly source?
Sep 19, 2025
macos
assembly
clang
x86-64
debug-information
Fastest way to set a single memory cell to zero or a constant in x86 assembly?
Sep 19, 2025
assembly
x86
x86-64
zero
micro-optimization
What does `__meminit` mean in Linux Kernel?
Sep 18, 2025
linux
linux-kernel
x86
x86-64
linux-device-driver
What is the difference between assembly language of x86 and x64 architecture?
Sep 17, 2025
assembly
x86
x86-64
Why does calling the C abort() function from an x86_64 assembly function lead to segmentation fault (SIGSEGV) instead of an abort signal?
Sep 17, 2025
linux
gcc
x86
x86-64
inline-assembly
How are instruction sets standardized?
Sep 17, 2025
assembly
x86-64
instruction-set
How can I exploit Buffer Overflow on x86-64 Linux?
Sep 16, 2025
assembly
x86-64
buffer-overflow
exploit
shellcode
Why exactly is "Segmentation Fault " still a thing in C
Sep 16, 2025
c
operating-system
segmentation-fault
x86-64
memory-segmentation
Linux x64 Calling Convention - Why are the first 6 args at negative offsets from RBP?
Sep 15, 2025
linux
assembly
x86-64
calling-convention
How to store 4 32 bit floats into one 128 bit xmm register?
Sep 14, 2025
assembly
x86
x86-64
sse
simd
Why do GCC and Clang pop on both branches instead of only once? (Factoring parts of the epilogue out of tail-duplication)
Sep 15, 2025
c++
assembly
gcc
x86-64
compiler-optimization
How to handle the "relocation R_X86_64_PC32 against protected symbol" when writing shared objects in assembly?
Sep 15, 2025
assembly
x86-64
elf
gnu-assembler
binutils
What is the problem with this jump instruction?
Sep 13, 2025
assembly
x86-64
gnu-assembler
Unaligned access performance on Intel x86 vs AMD x86 CPUs
Sep 12, 2025
x86-64
intel
cpu-architecture
memory-alignment
amd-processor
Reason for collapse of memory bandwidth when 2KB of data is cached in L1-cache
Sep 12, 2025
c++
linux
performance
x86-64
intel
Check architecture in dockerfile to get amd/arm
Sep 12, 2025
docker
debian
x86-64
cpu-architecture
apple-m1
Why is GCC subtracting 1 and comparing <= 2? Is cmp faster with powers of two in assembly?
Sep 08, 2025
c++
assembly
gcc
x86
x86-64
How to detect E-cores and P-cores in Linux alder lake system?
Sep 10, 2025
linux
x86-64
intel
cpu-architecture
cpu-cores
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