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  • JFCL
    /jif'kl/, /jaf'kl/, /j*-fi'kl/ vt., obs. (alt. `jfcl') To cancel or annul something. "Why don't you jfcl that out?" The fastest do-nothing instruction... VIEW ENTIRE DEFINITION


  •  View Definition: spl 

    spl


    /S-P-L/ [abbrev, from Set Priority Level] The way traditional UNIX kernels implement mutual exclusion by running code at high interrupt levels. Used in jargon to describe the act of tuning in or tuning out ordinary communication. Classically, spl levels run from 1 to 7; "Fred's at spl 6 today." would mean that he is very hard to interrupt. "Wait till I finish this; I'll spl down then." See also interrupts locked out.