Article View: comp.os.msdos.programmer
Article #2097Re: Polling keyboard
From: makjr
Date: Thu, 06 Sep 1990 20:01
Date: Thu, 06 Sep 1990 20:01
24 lines
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1193 bytes
In article <432.26DFC08D@gisatl.FIDONET.ORG>, david@gisatl.FIDONET.ORG (David Deitch) writes:
> In a message of <Aug 29 04:58> BBS Account (Aamir.Zakaria@samba.acs.unc.edu ) writes:
>
> > Can anyone tell me how, in either C or assembly language (8088), I can
> > poll
> > the keyboard for character input without actually waiting for input,
> > i.e.
> > just check if the user has hit a key.
>
> One of the INT 16 interrupts does this, but off the top of my
>
> David Deitch (GIS)
> deitch@gisatl.fidonet.org
> 1:133/411@fidonet
>
INT 16H , input AH = 01
outputs ZF ready or not signal
AH scan code
AL character code
Kevin Radus
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arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!samsung!munnari.oz.au!sirius.ucs.adelaide.edu.au!levels!makjrReferences:
<432.26DFC08D@gisatl.FIDONET.ORG>Show Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!samsung!munnari.oz.au!sirius.ucs.adelaide.edu.au!levels!makjr From: makjr@levels.sait.edu.au Newsgroups: comp.os.msdos.programmer Subject: Re: Polling keyboard Message-ID: <15366.26e6ab11@levels.sait.edu.au> Date: 6 Sep 90 20:01:21 GMT References: <432.26DFC08D@gisatl.FIDONET.ORG> Organization: Sth Australian Inst of Technology Lines: 24