how to read/write to ports
hello i am trying to read/write a value to a port (240h for example) but whenever i use inportb() or outportb() my compiler (bloodshed DEV++) flags it as a reference as an undefined function. i have included the stdio.h, conio.h and dos.h files but still nothing. my sample code is:
#include <stdio.h>
#include <conio.h>
#include <dos.h>
int main()
{
int inportb();
int result;
while(1)
{
result= inportb(0x240);
printf("Result is %d",result);
}
rteurn 0;
}
Don't know for sure.
But sometimes, believe it or not, just re-ordering the #include files does the trick! I've had a similar problem solved this way.
It's a long shot, but...
Code:#include <cmath> #include <complex> bool euler_flip(bool value) { return std::pow ( std::complex<float>(std::exp(1.0)), std::complex<float>(0, 1) * std::complex<float>(std::atan(1.0) *(1 << (value + 2))) ).real() < 0; }
BTW, in my system, Win '98, Bloodshed Dev compiler, "inportb" for instance, is referenced in WAVE.h ...
Code:#include <cmath> #include <complex> bool euler_flip(bool value) { return std::pow ( std::complex<float>(std::exp(1.0)), std::complex<float>(0, 1) * std::complex<float>(std::atan(1.0) *(1 << (value + 2))) ).real() < 0; }
