Respected Sir=0D=0A  Can u plz clarify my doubt.=0D=0A=0D=0A  HOW to use ou=
tport() in borland C++?=0D=0A=0D=0A   My code was=0D=0A     # include<stdio=
.h>=0D=0A    # include <conio.h>=0D=0A    # include<dos.h>=0D=0A=0D=0A     =
  void main()=0D=0A       {=0D=0A        int value=3D20;=0D=0A        int p=
ort=3Dox12=0D=0A        outport(port,value);=0D=0A     }=0D=0A=0D=0A   When=
 I compile this program it warns a message:=0D=0A"Call to a function outpor=
tb() without a prototype"=0D=0A=0D=0A   When I make the program it throws a=
n error=0D=0A"unresolved external _outportw from d:\filename.c"=0D=0A=0D=0A=
    Can you please solve this error=0D=0A=0D=0A=0D=0A        with regards=
=0D=0A          T.Karthik=0D=0A       =0A