Hi,
You could use DJGPPs function uclock(). My programer uses this delay function:

//Delay for the specified number of timer counts.
//Each count is 1/1193180 seconds (0.838 uS) in duration.
void Delay(long long xcount)
{
long long count0 = uclock();// initial count
do {} while (uclock() - count0 < xcount);
}

Gabriel.