With help of BSWAP instruction or SSE instructions (
PSHUFD,
PSHUFLW,
PSHUFHW) or SSSE3 instruction (
PSHUFB) reversing table can be faster. Speedup depends on three factors:
- table size: larger=faster
- table address: aligned=faster/much faster (15.5 speedup - possible! see chart)
- CPU type
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