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Article #463PDP-11 movb instruction
From: John Firestone
Date: Wed, 28 Jun 1989 22:06
Date: Wed, 28 Jun 1989 22:06
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802 bytes
I am designing a Q-bus controller and have come upon a PDP-11 architecture question which I hope someone can answer. If a MOVB instruction writes the low byte of a word-oriented device register, what does the high byte get set to? Thanks in advance for your help. John Firestone glug@geops.geo.washington.edu Geophysics Program, AK-50 University of Washington (206) 543-0162 Seattle, WA 98195
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!mit-eddie!uw-beaver!blake!erf From: erf@blake.acs.washington.edu (John Firestone) Newsgroups: comp.sys.dec Subject: PDP-11 movb instruction Keywords: PDP-11 movb instruction device register Message-ID: <2592@blake.acs.washington.edu> Date: 28 Jun 89 22:06:50 GMT Organization: Univ of Washington, Seattle Lines: 11