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- Enhanced REP MOVSB for memcpy
- How many CPU cycles are needed for each assembly instruction?
- Adding a redundant assignment speeds up code when compiled without optimization
- Is performance reduced when executing loops whose uop count is not a multiple of processor width?
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- Why does breaking the “output dependency” of LZCNT matter?
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- What is the stack engine in the Sandybridge microarchitecture?
- What is the “FS”/”GS” register intended for?
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- Slow jmp-instruction
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- Does an x86 CPU reorder instructions?
- What’s the purpose of the rotate instructions (ROL, RCL on x86)?
- Assembly – How to score a CPU instruction by latency and throughput
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- Why does Intel hide internal RISC core in their processors?
- Why isn’t the instruction pointer a normal register usable with MOV or ADD?
- What is instruction fusion in contemporary x86 processors?
- x86 32 bit opcodes that differ in x86-x64 or entirely removed
- Is a mov to a segmentation register slower than a mov to a general purpose register?
- Has Hardware Lock Elision gone forever due to Spectre Mitigation?
- Is processor can do memory and arithmetic operation at the same time?