MTS 8: LISP and SLIP in MTS
June 1976
32 System message switch.
0 No messages.
1 Print garbage collection messages (see the later
subsection "The Garbage Collector").
2 Print "CHECKPOINT DONE" messages (see the later
subsection "(CHECKPOINT A S and RESTORE").
4 Print "FREE SPACE EXPAND" messages (see the later
subsection "The Parameter List").
Initially 7.
33 Batch/terminal switch. 4 specifies batch, 0 specifies
terminal.
34 Interrupt trap switch. Initially 0 (all traps on).
1 Disable program interrupt trap.
2 Disable attention interrupt trap.
4 Alternate error atom control (used for writing debug-
ging packages).
35 Step count. The value of this parameter is the number of
steps remaining before a "STEP DONE" error will occur. It
is meaningful only when running under STEP control.
36 Value of GENSYM counter.
37 Initialization call for TIME (get form only).
38 CPU time used, relative to previous initialization (milli-
seconds, get only).
39 Elapsed time, relative to previous initialization (milli-
seconds, get only).
40 Supervisor state time, relative to initialization (timer
units, get only). A timer unit is about 13.3 microseconds.
41 Problem-state time, relative to initialization (timer units,
get only).
42 Time of day. Returns literal atom AA:BB:CC where AA = hour,
BB = minutes, CC = seconds (get only).
Note: The atom returned is not on the OBJECT LIST.
43 CHECKPOINT switch. 0 specifies exit after CHECKPOINT. 1
specifies automatic restore after CHECKPOINT. Initially 1.
44 This status code is used to get or set the current value of
the FCS parameter.
72 LISP