Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
?
Solved

Sound in Delphi 2 and 3

Posted on 1998-07-02
2
Medium Priority
?
158 Views
Last Modified: 2010-04-04
PAQ "sound in Delphi" solves the problem of simple sound generation only in Delphi 1.
This is because the predefined array Port[] is unknown to Delphi 2 and 3. Is there a way to
program sound also in Delphi 2 and 3 in the same manner?
0
Comment
Question by:jslivka
  • 2
2 Comments
 
LVL 8

Accepted Solution

by:
ZifNab earned 100 total points
ID: 1357025
It's possible to get simple sound, but with other commands :

procedure Sound(Freq : Word);
var
    B : Byte;
begin
    if Freq > 18 then
        begin
            Freq := Word(1193181 div LongInt(Freq));
            B := Byte(GetPort($61));

            if (B and 3) = 0 then
               begin
                   SetPort($61, Word(B or 3));
                   SetPort($43, $B6);
               end;

            SetPort($42, Freq);
            SetPort($42, Freq shr 8);
        end;
end;

procedure NoSound;
var
  Value: Word;
begin
    Value := GetPort($61) and $FC;
    SetPort($61, Value);
end;

procedure SetPort(address, Value:Word);
var
  bValue: byte;
begin
  bValue := trunc(Value and 255);
  asm
    mov dx, address
    mov al, bValue
    out dx, al
  end;
end;

function GetPort(address:word):word;
var
  bValue: byte;
begin
  asm
    mov dx, address
    in al, dx
    mov bValue, al
  end;
  GetPort := bValue;
end;

This should work on D2,3, 4?
Zif.
0
 
LVL 8

Expert Comment

by:ZifNab
ID: 1357026
Oops, sorry to say hello to you jslivka, so Hello jslivka (hope you forgive me). Zif.
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

A lot of questions regard threads in Delphi.   One of the more specific questions is how to show progress of the thread.   Updating a progressbar from inside a thread is a mistake. A solution to this would be to send a synchronized message to the…
In my programming career I have only very rarely run into situations where operator overloading would be of any use in my work.  Normally those situations involved math with either overly large numbers (hundreds of thousands of digits or accuracy re…
Exchange organizations may use the Journaling Agent of the Transport Service to archive messages going through Exchange. However, if the Transport Service is integrated with some email content management application (such as an anti-spam), the admin…
Is your OST file inaccessible, Need to transfer OST file from one computer to another? Want to convert OST file to PST? If the answer to any of the above question is yes, then look no further. With the help of Stellar OST to PST Converter, you can e…
Suggested Courses

571 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question