DivU64x32Remainder.c

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UINT64
EFIAPI
InternalMathDivRemU64x32 (
  IN      UINT64  Dividend,
  IN      UINT32  Divisor,
  OUT     UINT32  *Remainder
  )
{
  _asm {
    mov     ecx, Divisor
    mov     eax, dword ptr [Dividend + 4]
    xor     edx, edx
    div     ecx
    push    eax
    mov     eax, dword ptr [Dividend + 0]
    div     ecx
    mov     ecx, Remainder
    jecxz   RemainderNull                      // abandon remainder if Remainder == NULL
    mov     [ecx], edx
RemainderNull:
    pop     edx
  }
}