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20 TechQA 2024-03-31T15:25:02.457000What is causing the store latency in this program?
137 views
Asked by Chayim Friedman
Fast BCD addition
292 views
Asked by njuffa
Why is `if x is None: pass` faster than `x is None` alone?
154 views
Asked by no comment
Optimized 53->32 bit modulo computation on 32-bit processors
191 views
Asked by njuffa
x86 assembly abs() implementation? (revisited)
112 views
Asked by ugo_capeto
How to group static/global variables together for improved cache locality in C++
77 views
Asked by matrixMule
Why doesn't the C++ standard library utilize likely/unlikely attributes?
189 views
Asked by Viktor Sehr
LEA vs MOV imm64 for loading address-constant into register
133 views
Asked by Juliean
How to zero certain bytes of a register?
129 views
Asked by DarkAtom
Controlling class member layout AND destructor order
145 views
Asked by Bobby
Is making a temporary variable or incrementing faster?
29 views
Asked by user22200698
How can I perform a branchless conditional arithmetic operation in C?
240 views
Asked by CPlus
What are the pros and cons of int, unsigned int, uint_fastN_t, and int_fastN_t?
205 views
Asked by user22200698
Is it possible to make MSVC's __assume(0) aka std::unreachable() actually optimize?
216 views
Asked by user541686
Advantage of using LEA over MOV for passing parameters in Assembly compiled from C++
196 views
Asked by Gilles-Philippe Paillé
Does branchless programming make sense on very old x86 CPUs? (before 80486)
108 views
Asked by Coder
Missing optimization: mov al, [mem] to bitfield-insert a new low byte into an integer
208 views
Asked by Homer512
uiCA assembly code check dosen't detect JCC erratum
37 views
Asked by HelloGUI