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New posts in x86

How do you print a newline character in BIOS-level assembly?

assembly x86 interrupt bios osdev

What does lea 0x4(%esp),%ecx mean in AT&T syntax?

assembly x86 att

Mixing SSE with AVX128 for shorter instructions?

assembly x86 sse avx micro-optimization

SSE Instruction to load Bytes with Zero Extension?

c assembly x86 x86-64 sse

What exactly does the granularity bit of a GDT change about addressing memory?

assembly x86 protected-mode addressing gdt

Store __m256i to integer

c x86 simd intrinsics avx2

What is "Code" in Linux Kernel crash messages?

linux linux-kernel x86 crash

Compiler choice of not using REP MOVSB instruction for a byte array move

c++ assembly visual-c++ x86 compiler-optimization

Why do call and jump instruction use a displacement relative to the next instruction, not current?

assembly x86 intel machine-code relative-addressing

Can I tell the compiler that I need to earlyclobber a memory operand?

c assembly gcc x86 inline-assembly

What constitutes a read or write to memory/cache in x86 assembly, according to valgrind?

assembly x86 valgrind pascal cpu-cache

What is the meaning of IB read, IB write, OB read and OB write. They came as output of Intel® PCM while monitoring PCIe bandwidth

x86 performance-testing intel intel-pmu mellanox

Benchmarking C struct comparsion: XOR vs ==

c performance x86 comparison benchmarking

How does the CPU decode variable length instructions correctly?

assembly x86 decode instructions

Is it possible to atomically load and store on X86 processors?

c++ concurrency x86 atomic processor

Difference between "mov eax, [num]" and "mov eax, num"

assembly x86 nasm 32-bit

Handling x86 IRQs from secondary PIC: EOI order important?

assembly x86 port irq

Dot product performance with SSE instructions: is DPPS worth using?

assembly x86 simd sse dot-product

FSTENV? Can barely find any info about this instruction

assembly x86 x87

Redundant DS segment override prefix inserted by nasm?

assembly x86 nasm disassembly
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