/**
*** interface to TX
**/
#include "tx.h"
#include "dos.h"
tx_init()
{
	extern main();
	void far *p = main;
	if (*(long far *)(TX_INT*4))
		BIOS(TX_INT,TX_INIT,FP_SEG(p));
}
tx_enable()
{
	if (*(long far *)(TX_INT*4))
		BIOS(TX_INT,TX_ENABLE);
}
tx_disable()
{
	if (*(long far *)(TX_INT*4))
		BIOS(TX_INT,TX_DISABLE);
}