unit dtest03Unit1;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  IO, StdCtrls, ExtCtrls;

type
  TForm1 = class(TForm)
    Button1: TButton;
    Button2: TButton;
    IO1: TIO;
    Label1: TLabel;
    Button3: TButton;
    Label2: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    Label5: TLabel;
    Label6: TLabel;
    Label7: TLabel;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure FormCreate(Sender: TObject);
  private
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.Button1Click(Sender: TObject);

var
   Data: Byte;
begin
   Data:=00;
   Io1.Port[$378]:=Data;
end;

procedure TForm1.Button2Click(Sender: TObject);
var
   Data: Byte;
begin
   Data:=$FF;
   Io1.Port[$378]:=Data;
end;

procedure TForm1.Button3Click(Sender: TObject);
var
   Data: Byte;
   s: string;
begin
   Data:=Io1.Port[$379] and $F8;
   str (Data, s);
   Label2.Caption:=s;
   if ((Data and $08) = 1) then
     Label3.Caption:='ERROR = high'
   else
     Label3.Caption:='.';
   if ((Data and $10)=$10) then
     Label4.Caption:='SLCT = high'
   else
     Label4.Caption:='.';
   if ((Data and $20)=$20) then
     Label5.Caption:='PE = high'
   else
     Label5.Caption:='.';
   if ((Data and $40)=$40) then
     Label6.Caption:='ACK = high'
   else
     Label6.Caption:='.';
   if ((Data and $80)=$80) then
     Label7.Caption:='BUSY = high'
   else
     Label7.Caption:='.';

end;

procedure TForm1.FormCreate(Sender: TObject);
begin
     Label3.Caption:='ERROR';
     Label4.Caption:='SLCT';
     Label5.Caption:='PE';
     Label6.Caption:='ACK';
     Label7.Caption:='BUSY';

end;

end.