GetTickCount64.c

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#include "k32_vista.h"
 
/*
 * @implemented
 */
ULONGLONG
WINAPI
GetTickCount64(VOID)
{
    ULARGE_INTEGER TickCount;
 
    while (TRUE)
    {
        TickCount.HighPart = (ULONG)SharedUserData->TickCount.High1Time;
        TickCount.LowPart = SharedUserData->TickCount.LowPart;
 
        if (TickCount.HighPart == (ULONG)SharedUserData->TickCount.High2Time) break;
 
        YieldProcessor();
     }
 
     return (UInt32x32To64(TickCount.LowPart, SharedUserData->TickCountMultiplier) >> 24) +
            (UInt32x32To64(TickCount.HighPart, SharedUserData->TickCountMultiplier) << 8);
}