Trailing-Edge
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PDP-10 Archives
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decuslib10-05
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43,50337/27/ddtdem.txt
There is 1 other file named ddtdem.txt in the archive. Click here to see a list.
SIMDDT DEMONSTRATION PROGRAM
============================
00010 simulation BEGIN
00020 REF (head) queue; INTEGER i;
00030
00040 process CLASS entry(id); VALUE id; TEXT id;
00050 BEGIN into(queue); hold(5); out;
00060 END;
00070
00080 PROCEDURE print(element); REF (link) element;
00090 INSPECT element WHEN entry DO
00100 BEGIN
00110 outtext(id); outimage;
00120 print(suc);
00130 END;
00140
00150 queue:- NEW head;
00160 ACTIVATE NEW entry("FIRST ENTRY") DELAY 1;
00170 ACTIVATE NEW entry("SECOND ENTRY") DELAY 2;
00180 ACTIVATE NEW entry("THIRD ENTRY") DELAY 3;
00190 FOR i:= 1 STEP 1 UNTIL 10 DO
00200 BEGIN
00210 hold(1); outimage;
00220 outtext("Time: "); outfix(time,2,5); outimage;
00230 print(queue.first);
00240 END;
00250 END;
To start SIMDDT on the above program, use the command:
DEBUG DDTDEM
Then you may for example tell SIMDDT:
STOP AT 130 IF ID = "THIRD ENTRY"
PROCEED
And when SIMDDT stops at the breakpoint you can type:
SCHED
CHAIN
OUTPUT PREV QUA ENTRY.ID
Try other SIMDDT commands yourself!!!