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Info about using additional memory

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git-svn-id: svn://svn.cc65.org/cc65/trunk@3197 b7a2c559-68d2-44c3-8de9-860c34a00d81
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cuz 2004-09-23 18:55:08 +00:00
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doc/vic20.sgml
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@ -204,6 +204,20 @@ The program return code (low byte) is passed back to BASIC by use of the
<tt/ST/ variable.
<sect1>Using extended memory<p>
The extended memory at $A000 may be added to the heap by using the following
code:
<tscreen><verb>
/* Check for the existence of RAM */
if (PEEK(0xA000) == POKE(0xA000, PEEK(0xA000)+1)) {<br>
/* Add it to the heap */
_heapadd ((void *) 0xA000, 0x2000);
}
</verb></tscreen>
<sect>Bugs/Feedback<p>