Q: Extended functions to interrupt $14

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1 total messages Started by Eric Hansen Mon, 25 Jan 1993 19:19

#7747

Author: Eric Hansen
Date: Mon, 25 Jan 1993 19:19

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Does anyone have a refernece for the extensions to BIOS interrupt $14?
These are the ones other than $00 through $03.  They are used for
changing and sensing DTR, RTS, CTS and DSR, and for sending/receiving
a break.  My book on interrupts doesn't list these since they are available
only to PS/2 (386+) machines.  If anyone could briefly summarize them in
a post, I would be much abliged.  Register meanings and values are plenty.

Thanks!

Eric Hansen

--
    * Eric J. Hansen                  |    Center for Clinical Computing   *
    *   eric@binoc.bih.harvard.edu    |   350 Longwood Avenue, Boston, MA  *

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