147 lines
6.8 KiB
HTML
147 lines
6.8 KiB
HTML
<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html xmlns:MadCap="http://www.madcapsoftware.com/Schemas/MadCap.xsd" MadCap:lastBlockDepth="6" MadCap:lastHeight="94" MadCap:lastWidth="853" MadCap:disableMasterStylesheet="true" MadCap:tocPath="" MadCap:InPreviewMode="false" MadCap:PreloadImages="false" MadCap:RuntimeFileType="Topic" MadCap:TargetType="WebHelp" lang="en-us" xml:lang="en-us" MadCap:PathToHelpSystem="../../../" MadCap:HelpSystemFileName="Default.xml" MadCap:SearchType="Stem">
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<head><title>RANDOM Examples</title>
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<link href="../../SkinSupport/MadCap.css" rel="stylesheet" />
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<link href="../../Resources/Stylesheets/BSE_Help.css" rel="stylesheet" />
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<script src="../../SkinSupport/MadCapAll.js" type="text/javascript">
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</script>
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</head>
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<body>
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<h1>RANDOM Examples</h1>
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<div class="ImagePlusCaption">
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<div class="Col2">
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<p>
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<img src="../../graphics/pgm_icon1.gif" border="0" alt="BS1 icon" title="BS1 icon" />
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<img src="../../graphics/pgm_icon2.gif" border="0" alt="BS2 icon" title="BS2 icon" />
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<img src="../../graphics/pgm_icon2e.gif" border="0" alt="BS2e icon" title="BS2e icon" />
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<img src="../../graphics/pgm_icon2sx.gif" border="0" alt="BS2sx icon" title="BS2sx icon" />
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<img src="../../graphics/pgm_icon2p.gif" border="0" alt="BS2p icon" title="BS2p icon" />
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<img src="../../graphics/pgm_icon2pe.gif" border="0" alt="BS2pe icon" title="BS2pe icon" />
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<img src="../../graphics/pgm_icon2px.gif" border="0" alt="BS2px icon" title="BS2px icon" />
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</p>
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</div>
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<p style="text-align: right;">Syntax: <a href="../Commands/RANDOM.htm" target="" title="" alt="" class="MCXref_0" xrefformat="{paratext}">RANDOM</a></p>
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<p> </p>
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</div>
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<p class="clear"> </p>
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<p> </p>
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<p class="PlainText" style="text-align: center;">
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<img src="../../graphics/random_sch.gif" />
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</p><pre class="BScode" xml:space="preserve">' RANDOM.BS1
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' Connect a button to I/O pin 7 as shown in the figure in the RANDOM
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' command description and run this program. This program uses RANDOM to
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' simulate a coin toss. After 100 trials, it reports the total number of
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' heads and tails thrown.
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' {$STAMP BS1}
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' {$PBASIC 1.0}
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SYMBOL Btn = 7 ' button input
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SYMBOL flip = W0 ' a random number
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SYMBOL coin = BIT0 ' a bit from random number
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SYMBOL trials = B2 ' number of flips
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SYMBOL heads = B3 ' throws that come up heads
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SYMBOL tails = B4 ' throws that come up tails
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SYMBOL btnWrk = B5 ' workspace for BUTTON
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Start:
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DEBUG CLS, "Press the button to toss coin.", CR
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Main:
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FOR trials = 1 TO 100 ' flip coin 100 times
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Hold:
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RANDOM flip ' randomize while waiting
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BUTTON Btn, 0, 250, 100, btnWrk, 0, Hold ' wait for button press
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BRANCH coin, (Head, Tail) ' 0 = heads, 1 = tails
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Head:
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DEBUG CR, "Heads!"
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heads = heads + 1 ' increment heads counter
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GOTO Next_Toss
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Tail:
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DEBUG CR, "Tails..."
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tails = tails + 1 ' increment heads counter
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Next_Toss:
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NEXT
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DEBUG CR, CR, "Heads: ", #heads, CR, "Tails: ", #tails
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END
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</pre>
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<p>NOTE: The example below is written for the BS2 and will run on any of the BS2-family modules. Modify the $STAMP directive (as required) before downloading to the BS2e, BS2sx, BS2p, BS2pe, or BS2px.</p><pre class="BScode" xml:space="preserve">' RANDOM.BS2
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' Connect a button to I/O pin 7 as shown in the figure in the RANDOM
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' command description and run this program. This program uses RANDOM to
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' simulate a coin toss. After 100 trials, it reports the total number of
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' heads and tails thrown.
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' {$STAMP BS2}
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' {$PBASIC 2.5}
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Btn PIN 7 ' button input
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flip VAR Word ' a random number
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coin VAR flip.BIT0 ' Bit0 of the random number
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trials VAR Byte ' number of flips
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heads VAR Byte ' throws that come up heads
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tails VAR Byte ' throws that come up tails
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btnWrk VAR Byte ' workspace for BUTTON
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Start:
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DEBUG CLS, "Press button to start"
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Main:
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FOR trials = 1 TO 100 ' flip coin 100 times
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Hold:
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RANDOM flip ' randomize while waiting
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BUTTON Btin, 0, 250, 100, btnWrk, 0, Hold ' wait for button press
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IF (coin = 0) THEN ' 0 = heads, 1 = tails
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DEBUG CR, "Heads!"
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heads = heads + 1 ' increment heads counter
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ELSE
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DEBUG CR, "Tails..."
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tails = tails + 1 ' increment tails counter
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ENDIF
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NEXT
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Done:
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DEBUG CR, CR, "Heads: ", DEC heads, " Tails: ", DEC tails
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END</pre>
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<div class="Col2">
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<div class="MasterFoot">
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<p MadCap:conditions="BSEconditions.BSEWebHelp (Primary)-INCLUDE"><a href="../../HomeTopics/HomePage.htm">Go to Welcome page</a>
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</p>
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</div>
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</div>
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<div class="Col2">
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<div class="MasterFoot">
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<p style="text-align: right;"><span class="ContactInfoProjectName">BASIC Stamp Help</span> <![CDATA[ ]]><span class="ContactInfoVersion#">Version 2.5.4</span> <![CDATA[ ]]></p>
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<p style="text-align: right;">Copyright © <span class="ContactInfoCompanyName">Parallax Inc.</span></p>
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<p style="text-align: right;"><span class="SystemShortDate">8/8/2012</span>
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</p>
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