home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!newsstand.cit.cornell.edu!vax5.cit.cornell.edu!c3q
- From: c3q@vax5.cit.cornell.edu
- Newsgroups: alt.msdos.programmer
- Subject: IRQs, inteerupts, and the 8259
- Message-ID: <1992Jul23.205435.13965@vax5.cit.cornell.edu>
- Date: 23 Jul 92 20:54:35 EDT
- Distribution: world
- Organization: Cornell University
- Lines: 14
-
-
- For a given IRQ (n) either hard-wired or set on a board, the corresponding
- interrupt is n+8. The 8259 interrupt mask is 0..010..0 (8 bits) with the "1"
- located in bit n.
-
- EX: IRQ: 3
- Int: # 0Bh = 11 decimal
- mask: 00001000b
-
- For more information, see Ray Duncan's _Advanced MS-DOS Programming_
-
- - Travis J.I. Corcoran
-
-
-