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New posts in x86

What does NOPL do in x86 system?

assembly x86 nop

Why does mulss take only 3 cycles on Haswell, different from Agner's instruction tables? (Unrolling FP loops with multiple accumulators)

c assembly x86 sse micro-optimization

Is it safe to read past the end of a buffer within the same page on x86 and x64?

c performance assembly optimization x86

In x86 what's difference between "test eax,eax" and "cmp eax,0"

assembly x86

Use 32bit "Program Files" directory in msbuild

msbuild x86 64-bit x86-64 program-files

Change floating point rounding mode

c++ c floating-point x86

Can't edit and continue when using Visual Studio 2010 on a 64 bit machine, app targets x86

visual-studio visual-studio-2010 64-bit x86 edit-and-continue

Difference between JA and JG in assembly

assembly x86 conditional-statements

fastest way to negate a number

c++ visual-c++ x86 micro-optimization visual-c++-2012

What's the point of LEA EAX, [EAX]?

c assembly x86 instruction-set

How exactly do partial registers on Haswell/Skylake perform? Writing AL seems to have a false dependency on RAX, and AH is inconsistent

assembly x86 intel cpu-architecture micro-optimization

What is callq instruction?

assembly x86 x86-64 att

How are the fs/gs registers used in Linux AMD64?

linux assembly architecture x86 x86-64

Windows 64-bit registry v.s. 32-bit registry

com registry x86 64-bit clsid

SIMD instructions lowering CPU frequency

optimization x86 intel compiler-optimization avx512

What does the MOVZBL instruction do in IA-32 AT&T syntax?

assembly x86 att zero-extension

Why is such complex code emitted for dividing a signed integer by a power of two?

c++ visual-c++ assembly x86 division

Why does Intel's compiler prefer NEG+ADD over SUB?

assembly x86 micro-optimization icc

What does the dollar sign ($) mean in x86 assembly when calculating string lengths like "$ - label"? [duplicate]

assembly x86 intel-syntax

Writing my own BIOS

assembly x86 bios
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