Crew members sweating in the muggy rainy season heat exchanged instructions in Mandarin, Cantonese and English.
2.
This is especially applicable on superscalar x86 processors ( such as the Pentium of 1993 and later ) where these exchange instructions ( codes D9C8 . . D9CF h ) are optimized down to a zero clock penalty by using one of the integer paths for FXCH ST ( " x " ) in parallel with the FPU instruction.