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New posts in x86

Is it worse in any aspect to use the CMPXCHG instruction on an 8-bit field than on a 32-bit field?

c assembly x86 c11 instruction-set

What does 'REX' stand for in an x86-64 REX prefix?

assembly x86 x86-64 intel machine-code

Why BIOS need to compare a value in (seemly) randomized address to zero in the second instruction?

assembly x86 qemu bios osdev

Optimizing an incrementing ASCII decimal counter in video RAM on 7th gen Intel Core

assembly optimization x86 intel bootloader

Where to get the I/O port addresses assignment for hardware?

assembly io x86 hardware

How is linux simultaneously 32bit and 64bit? Or is that something handled in glibc?

linux x86 64-bit 32bit-64bit libc intel

Need some constructive criticism on my SSE/Assembly attempt

assembly x86 sse

How does the `test` instruction work?

assembly x86 bit-manipulation bitwise-operators instructions

Measure CPU frequency (x86 / x64)

c windows x86 64-bit cpu-speed

Simple C Kernel char Pointers Aren't Working

c pointers x86 kernel osdev

Purpose of self-IPI on IA-32

x86 kernel interrupt osdev intel

Pushing a pointer into the eax and ebx registers in GCC

c gcc assembly x86 cpu-registers

What are these types of VS2012 Command Prompt?

visual-studio-2012 x86 64-bit native command-prompt

What does the colon : mean in x86 assembly GAS syntax as in %ds:(%bx)?

assembly syntax x86 gnu-assembler real-mode

What is the fastest way to do a SIMD gather without AVX(2)?

x86 sse simd sse4

How do ASCII Adjust and Decimal Adjust instructions work?

assembly x86 decimal instructions bcd

How to detect architecture in NASM at compile time to have one source code for both x64 and x86?

assembly x86 preprocessor nasm x86-64

The binary of opcode in assembly

assembly x86 opcode

meaning of "memory ordering obeys causality"?

x86 memory-model

How does test and je/jne work

debugging assembly x86 lldb
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