Article View: comp.lang.asm370
Article #428Re: More dorky questions from me
From: Eric Thomas SUNET
Date: Fri, 21 Sep 1990 17:20
Date: Fri, 21 Sep 1990 17:20
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In article <9009210036.AA13133@ucbvax.Berkeley.EDU> IBM 370 Assembly Programming Discussion List <ASM370@OHSTVMA.BITNET> writes: >Hmmm... ok, how do you check for a device end? Please remember that this is >all done with interrupts ... some people haven't figured this out yet :-) A device end is an interrupt, like an attention; it's just a different bit to test in the 5th byte of the CSW (ie CSW+4). Attention is X'80', device end is X'04'. Note that it may not come alone, actually if you're doing a read it will definitely not come alone, so use a TM rather than a CLI. Eric
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arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!julius.cs.uiuc.edu!zaphod.mps.ohio-state.edu!rpi!uupsi!sunic!ericReferences:
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!julius.cs.uiuc.edu!zaphod.mps.ohio-state.edu!rpi!uupsi!sunic!eric From: eric@sunic.sunet.se (Eric Thomas SUNET) Newsgroups: comp.lang.asm370 Subject: Re: More dorky questions from me Message-ID: <2128@sunic.sunet.se> Date: 21 Sep 90 17:20:51 GMT References: <9009210036.AA13133@ucbvax.Berkeley.EDU> Distribution: inet Organization: Royal Institute of Technology, Sweden Lines: 10