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New posts in x86

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

How many clock cycles does cost AVX/SSE exponentiation on modern x86_64 CPU?

c++ x86 x86-64 sse avx

What does mov bl do in assembly

c++ assembly x86

difference between load1 and broadcast intrinsics

x86 sse simd intrinsics intel

why do repe and repne do the same before movsb?

assembly x86 repeat machine-code instructions

8086 assembly on DOSBox: Bug with idiv instruction?

assembly x86 x86-16 tasm dosbox

When to use ADOX instead of ADCX?

assembly x86 adx

x86 register flag abbreviations

assembly x86 masm eflags

How can I find out which cache line is touched by an instruction on an Intel processor?

caching x86

x86 XOR opcode differences

assembly x86 bit-manipulation opcode instruction-encoding

Do prefetch instructions need to return their result before they retire?

performance x86 prefetch

The inner workings of Spectre (v2)

x86 intel cpu-architecture branch-prediction spectre

Why doesn't Ice Lake have MOVDIRx like tremont? Do they already have better ones?

assembly x86 intel cpu-architecture instruction-set

x86 Assembly Why use Push/Pop instead of Mov?

assembly x86 exploit shellcode
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