if ((!fread(&(efs->tam_bloque), sizeof(EMUFS_BLOCK_SIZE), 1, fp)) ||
(!fread(&(efs->tam_reg), sizeof(EMUFS_REG_SIZE), 1, fp)))
{
if ((!fread(&(efs->tam_bloque), sizeof(EMUFS_BLOCK_SIZE), 1, fp)) ||
(!fread(&(efs->tam_reg), sizeof(EMUFS_REG_SIZE), 1, fp)))
{