Robuta

https://learn.microsoft.com/en-us/windows/win32/api/winnt/nf-winnt-unsignedmultiply128?redirectedfrom=MSDN UnsignedMultiply128 function (winnt.h) - Win32 apps | Microsoft Learn Multiplies two unsigned 64-bit integers to produce an unsigned 128-bit integer. functionwinnthappsmicrosoft