Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!usc!chaph.usc.edu!aludra.usc.edu!syau From: syau@aludra.usc.edu (Shu-Jye Syau) Newsgroups: comp.sys.ibm.pc Subject: I/O and Intel 8259A Message-ID: <16412@chaph.usc.edu> Date: 6 Apr 91 12:12:45 GMT Sender: news@chaph.usc.edu Organization: University of Southern California, Los Angeles, CA Lines: 15 Nntp-Posting-Host: aludra.usc.edu Originator: syau@aludra.usc.edu Hi : I install a voice card in PC , when voice input , the ADC will interrupt 8259A , and execute a interrupt handler to read in digital data from ADC . (hardware interrupt). My problem is how can I get the interrupt number ? I use TC 2.0 , setvect(intno,int_vect) . The data inport address is 0x0394 . Please help !!!!! scott USC syau@aludra.usc.edu