Title: How to fastly retrieve the high-order word from 32bit var
The HiWord function retrieves the high-order word
from the given 32-bit value.
Instead of using HiWord(var32)
use: Word(var32 shr 16)
this is over 60% faster then calling HiWord() function.
Don't make procedure or function out of it (you'll kill the speed).
You could use Word(var32) over LoWord(var32)
but it's less then 1% faster.