Beep a sound

[Barov4e]

Hi all,
I need help with generating sound in c++ or asm. But the sound not from the speakers, but from the motherbother. I tried
mov ax, 0x0e07
xor bx, bx
int 0x10
But when i compile raised an error "Access violation"

[disc0rd]

This would all depend upon the motherboard, and chipset...
What type is it? AMD? Intel?...that all makes a difference, as they all have different access restrictions.

Post some specs, and I'll try to help you out...I'm not great with ASM, but I'm a dabbler

[NullDevice]

are u in win, lin or DOS??

[rcgreen]

It probably only works in DOS, or a DOS window, because the int 10h is
a BIOS service, not available to a protected mode program.

I know it won't work in linux, because I've tried, but probably won't in windows
either. Do it like this

write a source file like this.

N       BEEP.COM     
A       100
MOV     AX,0E07      ;Write character 07h TTY mode
INT     10           ;BIOS video services
INT     20           ;Terminate program (and return to DOS)

RCX
7
W
Q

Be sure to include a final carriage return at the end of the file
then assemble it with DEBUG

C:\junk\html>debug<beep.txt

You will see this screen output.

=N       BEEP.COM
=A       100
11CF:0100 MOV     AX,0E07      ;Write character 07h TTY mode
11CF:0103 INT     10           ;BIOS video services
11CF:0105 INT     20           ;Terminate program (and return to DOS)
11CF:0107
=RCX
CX 0000  :7
=W
Writing 0007 bytes.
=Q

and BEEP.COM will be assembled. You can then execute it from the command line
or from windows by double clicking.

C:\junk\html>beep

C:\junk\html>

You should hear the beep, or default bell sound

EDIT!

I found it! In C it is.

printf("\a");

duh!

[Barov4e]

10x ... i tried and it works ... but only with debug ... it raised the same error when i use it in c++

[Barov4e]

Exuse me ... i mean in borland c++ builder and i can't use printf there 'cause i build visual program not console

[rcgreen]

// Introductory lesson to C++
#include <iostream.h>

/* This is the main function.
It is included on every C++ program.
It is the central point of a C++ application.*/

main()
{
    cout << '\t' << "- Borland C++ Builder -\a" << endl;
    cout << "This will end our session today" << "\n";

    cout << "\n\nPress any key to continue...";
    getchar();
}

It is the

cout << "\a";

statement that works in C++

http://www.visualcomponentlibrary.com/cpp/Lesson01.htm
:cool: