DivU64x32.c

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UINT64
EFIAPI
InternalMathDivU64x32 (
  IN      UINT64  Dividend,
  IN      UINT32  Divisor
  )
{
  _asm {
    mov     eax, dword ptr [Dividend + 4]
    mov     ecx, Divisor
    xor     edx, edx
    div     ecx
    push    eax                     ; save quotient on stack
    mov     eax, dword ptr [Dividend]
    div     ecx
    pop     edx                     ; restore high-order dword of the quotient
  }
}