New posts in x86-64

Mach-O 64-bit format does not support 32-bit absolute addresses. NASM Accessing Array

nasm x86-64 mach-o

Can't call C standard library function on 64-bit Linux from assembly (yasm) code

linux assembly x86-64 nasm yasm

Why in x86-64 the virtual address are 4 bits shorter than physical (48 bits vs. 52 long)?

assembly x86-64 memory-address virtual-memory mmu

How can I determine if a .NET assembly was built for x86 or x64?

.net assemblies x86 64-bit x86-64

On x86-64, is the “movnti” or "movntdq" instruction atomic when system crash?

x86-64 atomic cpu-architecture sse persistent-memory

glibc scanf Segmentation faults when called from a function that doesn't align RSP

linux assembly nasm x86-64 calling-convention

Why does the x86-64 / AMD64 System V ABI mandate a 16 byte stack alignment?

assembly x86-64 memory-alignment abi

What registers are preserved through a linux x86-64 function call

linux assembly x86-64 calling-convention abi

Why does GCC generate 15-20% faster code if I optimize for size instead of speed?

c++ performance gcc x86-64 compiler-optimization

How to load address of function or label into register

gcc assembly x86-64 att addressing-mode

Why does Windows64 use a different calling convention from all other OSes on x86-64?

windows assembly x86-64 calling-convention abi

What considerations go into predicting latency for operations on modern superscalar processors and how can I calculate them by hand?

assembly x86-64 pipeline latency superscalar

Where is the x86-64 System V ABI documented?

linux assembly x86-64 calling-convention abi

How do I achieve the theoretical maximum of 4 FLOPs per cycle?

c++ assembly x86-64 cpu-architecture flops

Why doesn't GCC use partial registers?

assembly gcc x86 x86-64 cpu-architecture

Why does GCC use multiplication by a strange number in implementing integer division?

c gcc assembly x86-64 integer-division

What's the purpose of the LEA instruction?

assembly x86 x86-64 x86-16

Why does clang produce inefficient asm with -O0 (for this simple floating point sum)?

c assembly x86-64 compiler-optimization llvm-codegen

Why do x86-64 instructions on 32-bit registers zero the upper part of the full 64-bit register?

assembly x86 x86-64 cpu-registers zero-extension

32-bit absolute addresses no longer allowed in x86-64 Linux?

linux gcc x86-64 linker-errors relocation