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New posts in x86

Cost of instruction jumps in assembly

performance assembly x86

No intrinsics for x86 BMI instructions BLSI & BLSR in Clang?

assembly x86 clang bit-manipulation bmi

Is the fall-through side of a conditional branch more efficient? Is it a good idea to make that the error-handling side?

assembly optimization x86 micro-optimization

PHP x86 Memory Limit

php memory x86 64-bit

How do assembly instruction differentiate between register, memory address, immediate value or offset parameter?

assembly parameters x86 decoding instruction-set

x86 instructions to set parity, overflow, & sign flags

assembly x86 masm32

How to add values?

assembly x86 masm irvine32

Comparing double with literal value in C gives different results on 32 bit machines

c gcc x86 floating-point 32bit-64bit

Why are Square Brackets used in LEA?

assembly syntax x86 memory-address addressing-mode

clflush not flushing the instruction cache

c++ assembly x86 cpu-cache

How to measure the ACTUAL number of clock cycles elapsed on modern x86?

performance x86 cpu rdtsc cpu-cycles

Why RBP instead of another register as a frame pointer?

pointers assembly x86 x86-64 stack-frame

Compiler flags of GCC/CLANG to generate "BEXTR" instruction (of IA32's BMI1)

gcc x86 clang compiler-optimization bmi

Why each logical CPU has it's own CR3 register in case of multithreading?

multithreading x86 cpu

Why do x86 FP compares set CF like unsigned integers, instead of using signed conditions?

assembly x86 sse sse2 x87

Why does this assembly implementation of strcmp behave unexpectedly?

c assembly x86 x86-64 strcmp

Understanding the flow of the kernel upon receiving a SIGSEGV for null-dereference

c linux-kernel x86 segmentation-fault

What calling convention should I use to make things portable?

c assembly x86 calling-convention cpuid

Is there any reason to use MOVS/CMPS/STOS/SCAS without a repeat prefix?

assembly x86
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