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Index » c++.dos.16-bits » int86 is broken

Thread overview

int86 is broken
Jan 08, 2002 Rajiv Bhagwat
Jan 09, 2002 Walter
Jan 10, 2002 Walter
Jan 10, 2002 Rajiv Bhagwat
Jan 10, 2002 Walter
Jan 10, 2002 Rajiv Bhagwat
Jan 10, 2002 Walter

January 08, 2002

int86 is broken

Posted by Rajiv Bhagwat

Rajiv Bhagwat

Please check the following program:

#include <dos.h>
#include <stdio.h>

void use_asm(){
    printf("Using asm\n");
    asm {
        mov ax, 500h
        int 2ah
        }
    printf("Names: %d, Commands: %d, Sessions: %d\n",
        _BX, _CX, _DX);
    }

int main(){
    union REGS InRegs;
    InRegs.x.ax = 0;
    int active = int86(0x2A, &InRegs, &InRegs) / 256;         // Check
Netbios
    printf("Active: %d\n", active);

    if(active){
        InRegs.x.ax = 0x0500;             // ah=5, al=0 get NetBIOS
statistics
        int86(0x2A, &InRegs, &InRegs);

        printf("Names: %d, Commands: %d, Sessions: %d\n",
              InRegs.x.bx, InRegs.x.cx, InRegs.x.dx );
        use_asm();
        }

    return 0;
    }

January 09, 2002

Re: int86 is broken

Posted by Walter
in reply to Rajiv Bhagwat

Walter

Posted in reply to Rajiv Bhagwat

At least there's an easy workaround! -Walter

"Rajiv Bhagwat" <dataflow@vsnl.com> wrote in message news:a1edfd$2e4b$1@digitaldaemon.com...
> Please check the following program:
>
> #include <dos.h>
> #include <stdio.h>
>
> void use_asm(){
>     printf("Using asm\n");
>     asm {
>         mov ax, 500h
>         int 2ah
>         }
>     printf("Names: %d, Commands: %d, Sessions: %d\n",
>         _BX, _CX, _DX);
>     }
>
> int main(){
>     union REGS InRegs;
>     InRegs.x.ax = 0;
>     int active = int86(0x2A, &InRegs, &InRegs) / 256;         // Check
> Netbios
>     printf("Active: %d\n", active);
>
>     if(active){
>         InRegs.x.ax = 0x0500;             // ah=5, al=0 get NetBIOS
> statistics
>         int86(0x2A, &InRegs, &InRegs);
>
>         printf("Names: %d, Commands: %d, Sessions: %d\n",
>               InRegs.x.bx, InRegs.x.cx, InRegs.x.dx );
>         use_asm();
>         }
>
>     return 0;
>     }
>
>
>

January 10, 2002

Re: int86 is broken

Posted by Walter
in reply to Rajiv Bhagwat

Walter

Posted in reply to Rajiv Bhagwat

Here's what I get compiling and running it:

-----------------------------------------------
C:\dc>sc -ml test
link test/noi;


C:\dc>test
Active: 1
Names: 16, Commands: 128, Sessions: 64
Using asm
Names: 16, Commands: 128, Sessions: 64

C:\dc>sc -ms test
link test/noi;


C:\dc>test
Active: 1
Names: 16, Commands: 128, Sessions: 64
Using asm
Names: 16, Commands: 128, Sessions: 64

C:\dc>
-------------------------------------------------------

I can't see what the problem is. -Walter

"Rajiv Bhagwat" <dataflow@vsnl.com> wrote in message news:a1edfd$2e4b$1@digitaldaemon.com...
> Please check the following program:
>
> #include <dos.h>
> #include <stdio.h>
>
> void use_asm(){
>     printf("Using asm\n");
>     asm {
>         mov ax, 500h
>         int 2ah
>         }
>     printf("Names: %d, Commands: %d, Sessions: %d\n",
>         _BX, _CX, _DX);
>     }
>
> int main(){
>     union REGS InRegs;
>     InRegs.x.ax = 0;
>     int active = int86(0x2A, &InRegs, &InRegs) / 256;         // Check
> Netbios
>     printf("Active: %d\n", active);
>
>     if(active){
>         InRegs.x.ax = 0x0500;             // ah=5, al=0 get NetBIOS
> statistics
>         int86(0x2A, &InRegs, &InRegs);
>
>         printf("Names: %d, Commands: %d, Sessions: %d\n",
>               InRegs.x.bx, InRegs.x.cx, InRegs.x.dx );
>         use_asm();
>         }
>
>     return 0;
>     }
>
>
>

January 10, 2002

Re: int86 is broken

Posted by Rajiv Bhagwat
in reply to Walter

Rajiv Bhagwat

Posted in reply to Walter

With sc -ml test, I get this:
Active: 1
Names: 8196, Commands: 31, Sessions: 4623
Using asm
Names: 16, Commands: 16, Sessions: 64

With sc -ms test, I get:
Active: 1
Names: 10872, Commands: 5123, Sessions: 2416
Using asm
Names: 16, Commands: 16, Sessions: 64

Should I send you .cod (or exe) files?
- Rajiv


"Walter" <walter@digitalmars.com> wrote in message news:a1isvq$25c1$1@digitaldaemon.com...
> Here's what I get compiling and running it:
>
> -----------------------------------------------
> C:\dc>sc -ml test
> link test/noi;
>
>
> C:\dc>test
> Active: 1
> Names: 16, Commands: 128, Sessions: 64
> Using asm
> Names: 16, Commands: 128, Sessions: 64
>
> C:\dc>sc -ms test
> link test/noi;
>
>
> C:\dc>test
> Active: 1
> Names: 16, Commands: 128, Sessions: 64
> Using asm
> Names: 16, Commands: 128, Sessions: 64
>
> C:\dc>
> -------------------------------------------------------
>
> I can't see what the problem is. -Walter
>
> "Rajiv Bhagwat" <dataflow@vsnl.com> wrote in message news:a1edfd$2e4b$1@digitaldaemon.com...
> > Please check the following program:
> >
> > #include <dos.h>
> > #include <stdio.h>
> >
> > void use_asm(){
> >     printf("Using asm\n");
> >     asm {
> >         mov ax, 500h
> >         int 2ah
> >         }
> >     printf("Names: %d, Commands: %d, Sessions: %d\n",
> >         _BX, _CX, _DX);
> >     }
> >
> > int main(){
> >     union REGS InRegs;
> >     InRegs.x.ax = 0;
> >     int active = int86(0x2A, &InRegs, &InRegs) / 256;         // Check
> > Netbios
> >     printf("Active: %d\n", active);
> >
> >     if(active){
> >         InRegs.x.ax = 0x0500;             // ah=5, al=0 get NetBIOS
> > statistics
> >         int86(0x2A, &InRegs, &InRegs);
> >
> >         printf("Names: %d, Commands: %d, Sessions: %d\n",
> >               InRegs.x.bx, InRegs.x.cx, InRegs.x.dx );
> >         use_asm();
> >         }
> >
> >     return 0;
> >     }
> >
> >
> >
>
>
>

January 10, 2002

Re: int86 is broken

Posted by Walter
in reply to Rajiv Bhagwat

Walter

Posted in reply to Rajiv Bhagwat

What's the date/size on your sds.lib?

"Rajiv Bhagwat" <dataflow@vsnl.com> wrote in message news:a1j9ov$2cv5$1@digitaldaemon.com...
> With sc -ml test, I get this:
> Active: 1
> Names: 8196, Commands: 31, Sessions: 4623
> Using asm
> Names: 16, Commands: 16, Sessions: 64
>
> With sc -ms test, I get:
> Active: 1
> Names: 10872, Commands: 5123, Sessions: 2416
> Using asm
> Names: 16, Commands: 16, Sessions: 64
>
> Should I send you .cod (or exe) files?
> - Rajiv
>
>
> "Walter" <walter@digitalmars.com> wrote in message news:a1isvq$25c1$1@digitaldaemon.com...
> > Here's what I get compiling and running it:
> >
> > -----------------------------------------------
> > C:\dc>sc -ml test
> > link test/noi;
> >
> >
> > C:\dc>test
> > Active: 1
> > Names: 16, Commands: 128, Sessions: 64
> > Using asm
> > Names: 16, Commands: 128, Sessions: 64
> >
> > C:\dc>sc -ms test
> > link test/noi;
> >
> >
> > C:\dc>test
> > Active: 1
> > Names: 16, Commands: 128, Sessions: 64
> > Using asm
> > Names: 16, Commands: 128, Sessions: 64
> >
> > C:\dc>
> > -------------------------------------------------------
> >
> > I can't see what the problem is. -Walter
> >
> > "Rajiv Bhagwat" <dataflow@vsnl.com> wrote in message news:a1edfd$2e4b$1@digitaldaemon.com...
> > > Please check the following program:
> > >
> > > #include <dos.h>
> > > #include <stdio.h>
> > >
> > > void use_asm(){
> > >     printf("Using asm\n");
> > >     asm {
> > >         mov ax, 500h
> > >         int 2ah
> > >         }
> > >     printf("Names: %d, Commands: %d, Sessions: %d\n",
> > >         _BX, _CX, _DX);
> > >     }
> > >
> > > int main(){
> > >     union REGS InRegs;
> > >     InRegs.x.ax = 0;
> > >     int active = int86(0x2A, &InRegs, &InRegs) / 256;         // Check
> > > Netbios
> > >     printf("Active: %d\n", active);
> > >
> > >     if(active){
> > >         InRegs.x.ax = 0x0500;             // ah=5, al=0 get NetBIOS
> > > statistics
> > >         int86(0x2A, &InRegs, &InRegs);
> > >
> > >         printf("Names: %d, Commands: %d, Sessions: %d\n",
> > >               InRegs.x.bx, InRegs.x.cx, InRegs.x.dx );
> > >         use_asm();
> > >         }
> > >
> > >     return 0;
> > >     }
> > >
> > >
> > >
> >
> >
> >
>
>

January 10, 2002

Re: int86 is broken

Posted by Rajiv Bhagwat
in reply to Walter

Rajiv Bhagwat

Posted in reply to Walter

sds      lib       370,176  08-04-01 11:10a SDS.LIB
snd      lib       469,504  07-28-01  1:51a SND.LIB
sdc      lib       391,168  07-08-01  3:31p SDC.LIB
sdl      lib       398,848  07-08-01  3:31p SDL.LIB
sdm      lib       374,272  07-08-01  3:31p SDM.LIB
-Rajiv

"Walter" <walter@digitalmars.com> wrote in message news:a1jeea$2fg9$1@digitaldaemon.com...
> What's the date/size on your sds.lib?
>
> "Rajiv Bhagwat" <dataflow@vsnl.com> wrote in message news:a1j9ov$2cv5$1@digitaldaemon.com...
> > With sc -ml test, I get this:
> > Active: 1
> > Names: 8196, Commands: 31, Sessions: 4623
> > Using asm
> > Names: 16, Commands: 16, Sessions: 64
> >
> > With sc -ms test, I get:
> > Active: 1
> > Names: 10872, Commands: 5123, Sessions: 2416
> > Using asm
> > Names: 16, Commands: 16, Sessions: 64
> >
> > Should I send you .cod (or exe) files?
> > - Rajiv
> >
> >
> > "Walter" <walter@digitalmars.com> wrote in message news:a1isvq$25c1$1@digitaldaemon.com...
> > > Here's what I get compiling and running it:
> > >
> > > -----------------------------------------------
> > > C:\dc>sc -ml test
> > > link test/noi;
> > >
> > >
> > > C:\dc>test
> > > Active: 1
> > > Names: 16, Commands: 128, Sessions: 64
> > > Using asm
> > > Names: 16, Commands: 128, Sessions: 64
> > >
> > > C:\dc>sc -ms test
> > > link test/noi;
> > >
> > >
> > > C:\dc>test
> > > Active: 1
> > > Names: 16, Commands: 128, Sessions: 64
> > > Using asm
> > > Names: 16, Commands: 128, Sessions: 64
> > >
> > > C:\dc>
> > > -------------------------------------------------------
> > >
> > > I can't see what the problem is. -Walter
> > >
> > > "Rajiv Bhagwat" <dataflow@vsnl.com> wrote in message news:a1edfd$2e4b$1@digitaldaemon.com...
> > > > Please check the following program:
> > > >
> > > > #include <dos.h>
> > > > #include <stdio.h>
> > > >
> > > > void use_asm(){
> > > >     printf("Using asm\n");
> > > >     asm {
> > > >         mov ax, 500h
> > > >         int 2ah
> > > >         }
> > > >     printf("Names: %d, Commands: %d, Sessions: %d\n",
> > > >         _BX, _CX, _DX);
> > > >     }
> > > >
> > > > int main(){
> > > >     union REGS InRegs;
> > > >     InRegs.x.ax = 0;
> > > >     int active = int86(0x2A, &InRegs, &InRegs) / 256;         //
Check
> > > > Netbios
> > > >     printf("Active: %d\n", active);
> > > >
> > > >     if(active){
> > > >         InRegs.x.ax = 0x0500;             // ah=5, al=0 get NetBIOS
> > > > statistics
> > > >         int86(0x2A, &InRegs, &InRegs);
> > > >
> > > >         printf("Names: %d, Commands: %d, Sessions: %d\n",
> > > >               InRegs.x.bx, InRegs.x.cx, InRegs.x.dx );
> > > >         use_asm();
> > > >         }
> > > >
> > > >     return 0;
> > > >     }
> > > >
> > > >
> > > >
> > >
> > >
> > >
> >
> >
>
>

January 10, 2002

Re: int86 is broken

Posted by Walter
in reply to Rajiv Bhagwat

Walter

Posted in reply to Rajiv Bhagwat

Is it possible there are other register values to that function? Not initializing all fields of REGS results in garbage being assigned to them.

"Rajiv Bhagwat" <dataflow@vsnl.com> wrote in message news:a1jg9u$2gms$1@digitaldaemon.com...
> sds      lib       370,176  08-04-01 11:10a SDS.LIB
> snd      lib       469,504  07-28-01  1:51a SND.LIB
> sdc      lib       391,168  07-08-01  3:31p SDC.LIB
> sdl      lib       398,848  07-08-01  3:31p SDL.LIB
> sdm      lib       374,272  07-08-01  3:31p SDM.LIB
> -Rajiv
>
> "Walter" <walter@digitalmars.com> wrote in message news:a1jeea$2fg9$1@digitaldaemon.com...
> > What's the date/size on your sds.lib?
> >
> > "Rajiv Bhagwat" <dataflow@vsnl.com> wrote in message news:a1j9ov$2cv5$1@digitaldaemon.com...
> > > With sc -ml test, I get this:
> > > Active: 1
> > > Names: 8196, Commands: 31, Sessions: 4623
> > > Using asm
> > > Names: 16, Commands: 16, Sessions: 64
> > >
> > > With sc -ms test, I get:
> > > Active: 1
> > > Names: 10872, Commands: 5123, Sessions: 2416
> > > Using asm
> > > Names: 16, Commands: 16, Sessions: 64
> > >
> > > Should I send you .cod (or exe) files?
> > > - Rajiv
> > >
> > >
> > > "Walter" <walter@digitalmars.com> wrote in message news:a1isvq$25c1$1@digitaldaemon.com...
> > > > Here's what I get compiling and running it:
> > > >
> > > > -----------------------------------------------
> > > > C:\dc>sc -ml test
> > > > link test/noi;
> > > >
> > > >
> > > > C:\dc>test
> > > > Active: 1
> > > > Names: 16, Commands: 128, Sessions: 64
> > > > Using asm
> > > > Names: 16, Commands: 128, Sessions: 64
> > > >
> > > > C:\dc>sc -ms test
> > > > link test/noi;
> > > >
> > > >
> > > > C:\dc>test
> > > > Active: 1
> > > > Names: 16, Commands: 128, Sessions: 64
> > > > Using asm
> > > > Names: 16, Commands: 128, Sessions: 64
> > > >
> > > > C:\dc>
> > > > -------------------------------------------------------
> > > >
> > > > I can't see what the problem is. -Walter
> > > >
> > > > "Rajiv Bhagwat" <dataflow@vsnl.com> wrote in message news:a1edfd$2e4b$1@digitaldaemon.com...
> > > > > Please check the following program:
> > > > >
> > > > > #include <dos.h>
> > > > > #include <stdio.h>
> > > > >
> > > > > void use_asm(){
> > > > >     printf("Using asm\n");
> > > > >     asm {
> > > > >         mov ax, 500h
> > > > >         int 2ah
> > > > >         }
> > > > >     printf("Names: %d, Commands: %d, Sessions: %d\n",
> > > > >         _BX, _CX, _DX);
> > > > >     }
> > > > >
> > > > > int main(){
> > > > >     union REGS InRegs;
> > > > >     InRegs.x.ax = 0;
> > > > >     int active = int86(0x2A, &InRegs, &InRegs) / 256;         //
> Check
> > > > > Netbios
> > > > >     printf("Active: %d\n", active);
> > > > >
> > > > >     if(active){
> > > > >         InRegs.x.ax = 0x0500;             // ah=5, al=0 get
NetBIOS
> > > > > statistics
> > > > >         int86(0x2A, &InRegs, &InRegs);
> > > > >
> > > > >         printf("Names: %d, Commands: %d, Sessions: %d\n",
> > > > >               InRegs.x.bx, InRegs.x.cx, InRegs.x.dx );
> > > > >         use_asm();
> > > > >         }
> > > > >
> > > > >     return 0;
> > > > >     }
> > > > >
> > > > >
> > > > >
> > > >
> > > >
> > > >
> > >
> > >
> >
> >
>
>

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