question: void blockMix128 ( long k1 , long k2 ) { h1 ^= mixK1 ( k1 ) ; h1 = Long . rotateLeft ( h1 , 27 ) ; h1 += h2 ; h1 = ( h1 * 5 ) + 0x52dce729 ; h2 ^= mixK2 ( k2 ) ; h2 = Long . rotateLeft ( h2 , 31 ) ; h2 += h1 ; h2 = ( h2 * 5 ) + 0x38495ab5 ; }
target:  Block mix (128-bit block) of input key to internal hash state.