Article View: comp.os.msdos.programmer
Article #3334Re: serial I/O in comm programs
From: Sanjay Aiyagari
Date: Sun, 09 Dec 1990 08:30
Date: Sun, 09 Dec 1990 08:30
13 lines
1102 bytes
1102 bytes
In article <1990Dec8.005829.36572@eagle.wesleyan.edu>, ahahn@eagle.wesleyan.edu writes: > > Anyone know the method usually used by communication programs for serial i/o? > I know it can be done using either int 14h or with the in/out commands, but > which is more practical, reasonable, or common? > It is more common to use the IN/OUT commands, because they allow more control. In addition, you must use these commands if you are to do input, because you have to write your own interrupt procedure (the BIOS INT 14h is not fast enough to perform input faster than 1200 bps without losing characters). Sanjay Aiyagari (hd7x@vax5.cit.cornell.edu)
Technical Details
Message-ID:
<1990Dec9.043053.1468@vax5.cit.cornell.edu>Path:
arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rutgers!usc!zaphod.mps.ohio-state.edu!rpi!batcomputer!cornell!vax5.cit.cornell.edu!hd7xReferences:
<1990Dec8.005829.36572@eagle.wesleyan.edu>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rutgers!usc!zaphod.mps.ohio-state.edu!rpi!batcomputer!cornell!vax5.cit.cornell.edu!hd7x From: hd7x@vax5.cit.cornell.edu (Sanjay Aiyagari) Newsgroups: comp.os.msdos.programmer Subject: Re: serial I/O in comm programs Message-ID: <1990Dec9.043053.1468@vax5.cit.cornell.edu> Date: 9 Dec 90 08:30:53 GMT References: <1990Dec8.005829.36572@eagle.wesleyan.edu> Distribution: comp Lines: 13