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pause_w.sta
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1995-03-23
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43 lines
Article 1349 of comp.sys.handhelds:
Path: en.ecn.purdue.edu!noose.ecn.purdue.edu!samsung!usc!apple!portal!cup.portal.com!Jake-S
From: Jake-S@cup.portal.com (Jake G Schwartz)
Newsgroups: comp.sys.handhelds
Subject: HP48 Pause With Stack Display
Message-ID: <34002@cup.portal.com>
Date: 18 Sep 90 02:42:19 GMT
Organization: The Portal System (TM)
Lines: 30
HP48 Pause With Stack Display
-----------------------------
After posing the question "How does one pause an HP48 program to
show the status of the stack display and resume execution?", nobody
could produce a simple answer. However after thinking about the
exotic ideas which I had received via Email, a solution was found.
The following routine PAUSE halts a running program for a number of
seconds specified in stack level 1, shows the stack and then resumes
afterwards. The procedure halts the program, sets a control alarm to
execute a CONT n seconds after the alarm is set and stops. The alarm
then wakes up the program and resumes from there. For instance, the
program
<< 1 2 3 PAUSE 4 5 >>
will start up, pause for 3 seconds displaying 1 and 2 on the
stack, then resume and end up with 1,2,4 and 5 on the stack. The
routine PAUSE is shown below.
%%HP: T(3)A(D)F(.);
<< DATE TIME ROT 10000 / HMS+ { } + + @get date, time+#seconds in stack
{ \<< DELALARM CONT \>> } + @build control alarm to do a CONT
STOALARM DROP HALT @set alarm, drop alarm # and halt
\>>
Jake Schwartz