Serial transmission/ reception using interrrup

[JeffreyPeter]

Hi, This is an serial interrupt code that should not execute while serial transmission but should execute while receiving data. It simulates fine in proteus but on actual hardware implementation, it hangs it is not transmitting data. Please help me debug this code.
Thanks in advance

void serial_receive() interrupt 4
{
	if(TI==0) // so that it does not execute while transmitting....
	{
		while(RI==0);// non zero character recived
		serial_get=1;
		RI=0;
	}
	
}

 

[Ian Rogers]

The only place it can hang is at the " while(RI == 0) " Since The interrupt has already occured, I should leave this out...

Only include "RI = 0;" at the end of the interrupt...