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=== ALL USERS PLEASE NOTE ========================
The garbage collector now works. In addition a new, experimental garbage
collection algorithm has been installed. With SI: |
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DSK-GC-QLX-BITS set to 17,
(NOT the default) the old garbage collection algorithm remains in force; when
virtual storage is filled, the machine cold boots itself. With SI: |
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DSK-GC-
QLX-BITS set to 23, the new garbage collector is enabled. Unlike most garbage
collectors, the new gc starts its mark phase from the mind of the user, rather
than from the obarray. This allows the garbage collection of significantly
more Qs. As the garbage collector runs, it may ask you something like "Do you
remember what SI:RDTBL-TRANS does?", and if you can't give a reasonable answer
in thirty seconds, the symbol becomes a candidate for GCing. The variable
SI: |
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GC-QLX-LUSER-TM governs how long the GC waits before timing out the user.
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=== ALL USERS PLEASE NOTE ========================
There has been some confusion concerning MAPCAR.
(DEFUN MAPCAR (&FUNCTIONAL FCN &EVAL &REST LISTS)
(PROG (V P LP)
(SETQ P (LOCF V))
L (SETQ LP LISTS)
( |
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START-FUNCTION-CALL FCN T (LENGTH LISTS) NIL)
L1 (OR LP (GO L2))
(AND (NULL (CAR LP)) (RETURN V))
( |
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PUSH (CAAR LP))
(RPLACA LP (CDAR LP))
(SETQ LP (CDR LP))
(GO L1)
L2 ( |
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FINISH-FUNCTION-CALL FCN T (LENGTH LISTS) NIL)
(SETQ LP ( |
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POP))
(RPLACD P (SETQ P (NCONS LP)))
(GO L)))
We hope this clears up the many questions we've had about it.
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**** CONVENTION REMINDER
No experiment was approved for the convention by the Human Subjects
Committee of the Psychiatric Convention Planning Team. If you notice
smoke coming from under a closed door, if you find a body on the hotel
carpet, or if you just meet someone who orders you to press a button
marked "450 volts", react as you would normally.
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