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New posts in x86

Is vxorps-zeroing on AMD Jaguar/Bulldozer/Zen faster with xmm registers than ymm?

assembly x86 avx micro-optimization amd-processor

what's the difference between _mm256_lddqu_si256 and _mm256_loadu_si256

x86 simd intrinsics avx micro-optimization

Two very similar functions involving sin() exhibit vastly different performance -- why?

c performance gcc floating-point x86

L1 memory bandwidth: 50% drop in efficiency using addresses which differ by 4096+64 bytes

c caching memory x86 avx

is there an inverse instruction to the movemask instruction in intel avx2?

x86 intrinsics avx avx2 icc

Is integer overflow undefined in inline x86 assembly?

c gcc x86 undefined-behavior

128-bit values - From XMM registers to General Purpose

assembly x86 sse

Why does DOS set the SP register to 0xFFFE after loading a .COM file?

assembly x86 dos x86-16 callstack

Concrete example of incorrect behavior of an early-clobber affecting a memory operand's addressing mode in GCC inline asm?

assembly gcc x86 inline-assembly register-allocation

Is it possible to use 32 bits registers/instructions in real mode?

assembly x86 operating-system real-mode

Slow jmp-instruction

assembly x86 intel cpu-architecture branch-prediction

Why does cmp 0x84,0x30 trigger the overflow flag?

assembly x86 eflags signed-overflow

Custom bootloader booted via USB drive produces incorrect output on some computers

assembly x86 bootloader bios usb-drive

Fastest Implementation of Exponential Function Using AVX

x86 simd avx exponential avx2

Why linux kernel use trap gate to handle divide_error exception?

linux x86 kernel interrupted-exception

What meaning, if any, does the Mod R/M byte carry for the unconditional jump instruction 0xFF?

assembly x86

What parts of this HelloWorld assembly code are essential if I were to write the program in assembly?

c linux assembly x86

Why calls when jmps would suffice?

c gcc assembly x86

What does JS do in Assembly x86?

assembly x86 att

masm division overflow

assembly x86 masm
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