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New posts in x86-64

Counting number of instructions executed by a binary using pin, perf and valgrind

c assembly valgrind x86-64 perf

With Hyper Threading, threads of one physical core are exchanging via what level of cache L1/L2/L3?

multithreading x86 x86-64 smt hyperthreading

X86_64 - assembly - Why displacement not 64 bits?

assembly x86-64 memory-address

How can gcc/clang assume a string constant's address is 32-bit?

c linux linker x86-64 elf

Why does the compiler allocate more than needed in the stack?

c gcc stack x86-64 allocation

x86-64: canonical addresses and actual available range

assembly x86 x86-64 virtual-address-space address-space

Exec error when writing ELF64 from scratch

assembly x86-64 elf

Understanding stack alignment

assembly x86-64 memory-alignment calling-convention abi

x86_64 assembly exit system call parameter on macOS Mojave?

macos assembly x86-64 system-calls mach

How to pass structs to C function from x86-64 assembly on Mac (NASM)

c assembly struct x86-64

May 64-bit Windows allocate virtual memory over 7FFF'FFFF'FFFF?

c# windows x86-64 virtual-memory internals

Why doesn't RFO after retirement break memory ordering?

assembly x86-64 cpu-architecture cpu-cache rfo

Unsigned int to unsigned long long well defined?

c++ assembly x86 x86-64 unsigned-integer

Why do 32-bit applications work on 64-bit x86 CPUs?

assembly operating-system x86-64 cpu-architecture backwards-compatibility

NASM compiling x86_64 ASM label addresses off by 256 bytes in Mach-O when using multiple db declarations?

assembly nasm x86-64 mach-o data-segment

Shortest Intel x86-64 opcode for rax=1?

assembly x86-64 micro-optimization code-size intel

Address canonical form and pointer arithmetic

x86-64 access-violation memory-address pointer-arithmetic aslr

Why (n mod const) is faster than (const mod n)?

java x86-64 jmh

Is it allowed to access memory that spans the zero boundary in x86?

assembly x86 x86-64 intel cpu-architecture

Is it possible to change virtual memory page size?

c linux x86-64
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