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<h2>
<a name="1205346"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">define</font>
</h2><hr>
<p>
<a name="1266752"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">Define an integer constant</font>
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<h3>
<a name="1205348"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">Command type</font>
</h3>
<p>
<a name="1226875"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">Symbol definition</font>
</p>
<h3>
<a name="1205350"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">Tool environment</font>
</h3>
<p>
<a name="1227975"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif"><strong>st20cc</strong></font>
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<h3>
<a name="1205351"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">Synopsis</font>
</h3>
<a name="1205352"> </a><font size=2 face=Courier><strong>define <font size=2 face=Courier><strong><em>symbol_name value</em></strong></font><br></strong></font>
<h3>
<a name="1205353"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">Arguments</font>
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<p>
<a name="1223713"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif"><b><font size=2 face=Courier><strong><em>symbol_name</em></strong></font></b></font>
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<dl><dl> <dl>
<dt> <a name="1223715"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">The name of the symbol to be defined</font>
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</dl></dl>
<p>
<a name="1223717"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif"><b><font size=2 face=Courier><strong><em>value</em></strong></font></b></font>
<br>
<dl><dl> <dl>
<dt> <a name="1223719"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">The integer value of the symbol or a string containing a command language expression to be evaluated</font>
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<h3>
<a name="1205358"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">Description</font>
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<p>
<a name="1205359"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">The <font size=2 face=Courier><strong>define</strong></font> command defines a constant integer variable, <font size=2 face=Courier><strong><em>symbol_name</em></strong></font>, in the program. This can be used to avoid hard-coding constant values in the code of the program and to access segment and section information about the program. The value of the variable can be an integer or it can be the result of a command language expression which is supplied as a string.</font>
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<h3>
<a name="1205360"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">Example</font>
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<a name="1205361"> </a><font size=2 face=Courier><strong>define DeviceAddress 0x20003004<br>define IFreeMemorySize "sizeof(INTERNAL)-sizeof(icode)"<br>define IFreeMemoryStart "sizeof(INTERNAL)+sizeof(icode)"<br></strong></font>
<p>
<a name="1205364"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif">The above example defines three symbols corresponding to the address of a device and the start and size of unused internal memory. These variables can be accessed in the program as follows:</font>
</p>
<a name="1205365"> </a><font size=2 face=Courier><strong>extern const int DeviceAccess;<br>extern const int IFreeMemorySize;<br>extern const int IFreeMemoryStart;<br></strong></font>
<h3>
<a name="1205368"> </a><font color="#003366" face="Verdana, Arial, Helvetica, sans-serif">See also</font>
</h3>
<p>
<a name="1205375"> </a><font size=2 face="Verdana, Arial, Helvetica, sans-serif"><a href="command5.htm#1204466"><font color="#0000ff" face="Verdana, Arial, Helvetica, sans-serif"><i>addressof</i></font></a>, <a href="comman89.htm#1208290"><font color="#0000ff" face="Verdana, Arial, Helvetica, sans-serif"><i>sizeused</i></font></a></font>
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