Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!tut.cis.ohio-state.edu!ucbvax!PHOENIX.PRINCETON.EDU!asjoshi From: asjoshi@PHOENIX.PRINCETON.EDU ("Amit S. Joshi") Newsgroups: comp.lang.asm370 Subject: Re: VCTCA Communications Message-ID: <9001022046.AA15906@brazos.rice.edu> Date: 2 Jan 90 13:35:44 GMT References: <8912211843.AA15742@brazos.rice.edu> Sender: daemon@ucbvax.BERKELEY.EDU Reply-To: IBM 370 Assembly Programming Discussion List Distribution: inet Organization: The Internet Lines: 20 In article <8912211843.AA15742@brazos.rice.edu> you write: > > What channel commands work with virtual CTCAs? >I've tried READ (02) and WRITE (01) with little or no success. > > Rick Troth ------------- Rice ONCS VM Systems Support ified tape CCWS. VCTCA's only seem to support the following CCWS if you have not programmed the CTCA. NOP, READ and WRITE ( Ithink 03, 02 and 01). Hope that helps. I have asample program that I could send you if you needed it. -- Amit Joshi BITNET | Q3696@PUCC.BITNET USENET | {seismo, rutgers}\!princeton\!phoenix\!asjoshi "There's a pleasure in being mad... which none but madmen know!" - St.Dryden