LowBitSet64.c

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#include "BaseLibInternals.h"
 
INTN
EFIAPI
LowBitSet64 (
  IN      UINT64  Operand
  )
{
  INTN  BitIndex;
 
  if (Operand == 0) {
    return -1;
  }
 
  for (BitIndex = 0;
       (Operand & 1) == 0;
       BitIndex++, Operand = RShiftU64 (Operand, 1))
  {
  }
 
  return BitIndex;
}