witness/clock.zil

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"CLOCK for WITNESS
Copyright (C) 1983 Infocom, Inc. All rights reserved."
<CONSTANT C-TABLELEN 300>
<GLOBAL C-TABLE <ITABLE NONE 300>>
<GLOBAL C-DEMONS 300>
<GLOBAL C-INTS 300>
<CONSTANT C-INTLEN 6>
<CONSTANT C-ENABLED? 0>
<CONSTANT C-TICK 1>
<CONSTANT C-RTN 2>
;<ROUTINE DEMON (RTN TICK "AUX" CINT)
#DECL ((RTN) ATOM (TICK) FIX (CINT) <PRIMTYPE VECTOR>)
<PUT <SET CINT <INT .RTN T>> ,C-TICK .TICK>
.CINT>
<ROUTINE QUEUE (RTN TICK "AUX" CINT)
#DECL ((RTN) ATOM (TICK) FIX (CINT) <PRIMTYPE VECTOR>)
<PUT <SET CINT <INT .RTN>> ,C-TICK .TICK>
.CINT>
<ROUTINE INT (RTN "OPTIONAL" (DEMON <>) E C INT)
#DECL ((RTN) ATOM (DEMON) <OR ATOM FALSE> (E C INT) <PRIMTYPE
VECTOR>)
<SET E <REST ,C-TABLE ,C-TABLELEN>>
<SET C <REST ,C-TABLE ,C-INTS>>
<REPEAT ()
<COND (<==? .C .E>
<SETG C-INTS <- ,C-INTS ,C-INTLEN>>
<AND .DEMON <SETG C-DEMONS <- ,C-DEMONS ,C-INTLEN>>>
<SET INT <REST ,C-TABLE ,C-INTS>>
<PUT .INT ,C-RTN .RTN>
<RETURN .INT>)
(<EQUAL? <GET .C ,C-RTN> .RTN> <RETURN .C>)>
<SET C <REST .C ,C-INTLEN>>>>
<GLOBAL CLOCK-WAIT <>>
<ROUTINE CLOCKER ("AUX" C E TICK (FLG <>) VAL)
#DECL ((C E) <PRIMTYPE VECTOR> (TICK) FIX ;(FLG) ;<OR FALSE ATOM>)
<COND (,CLOCK-WAIT <SETG CLOCK-WAIT <>> <RFALSE>)>
<SETG PRESENT-TIME <+ ,PRESENT-TIME 1>>
<COND (<G? ,PRESENT-TIME 1199>
<TIMES-UP>)>
<COND (<G? <SETG MOVES <+ ,MOVES 1>> 59>
<SETG MOVES 0>
<COND (<G? <SETG SCORE <+ ,SCORE 1>> 23>
<SETG SCORE 0>)>)>
<SET C <REST ,C-TABLE <COND (,P-WON ,C-INTS) (T ,C-DEMONS)>>>
<SET E <REST ,C-TABLE ,C-TABLELEN>>
<REPEAT ()
<COND (<==? .C .E> <RETURN .FLG>)
(<NOT <0? <GET .C ,C-ENABLED?>>>
<SET TICK <GET .C ,C-TICK>>
<COND (<0? .TICK>)
(T
<PUT .C ,C-TICK <- .TICK 1>>
<COND (<AND <NOT <G? .TICK 1>>
<SET VAL <APPLY <GET .C ,C-RTN>>>>
<COND (<OR <NOT .FLG>
<==? .VAL ,M-FATAL>>
<SET FLG .VAL>)>)>)>)>
<SET C <REST .C ,C-INTLEN>>>>