223cc6685e
git-svn-id: svn://svn.compuextreme.de/Viitor/V963/Viitor_cc65@5933 504e572c-2e33-0410-9681-be2bf7408885
57 lines
1.9 KiB
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57 lines
1.9 KiB
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<TITLE>cc65 function reference: Alphabetical function reference: pokewsys</TITLE>
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<H2><A NAME="pokewsys"></A> 3.120 <A HREF="funcref.html#toc3.120">pokewsys</A></H2>
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<P>
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<BLOCKQUOTE>
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<DL>
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<DT><B>Function</B><DD><P>Write one word to a location in the system bank.</P>
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<DT><B>Header</B><DD><P><CODE>
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<A HREF="funcref-13.html#cbm610.h">cbm610.h</A></CODE>,
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<CODE>
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<A HREF="funcref-12.html#cbm510.h">cbm510.h</A></CODE></P>
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<DT><B>Declaration</B><DD><P><CODE>void __fastcall__ pokewsys (unsigned addr, unsigned val);</CODE></P>
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<DT><B>Description</B><DD><P><CODE>pokewsys</CODE> writes one word to the given address in the
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system bank (bank 15) of the CBM PET-II machines. Following the usual 6502
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conventions, the low byte of <CODE>val</CODE> is written to <CODE>addr</CODE>, and the
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high byte is written to <CODE>addr+1</CODE>.</P>
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<DT><B>Limits</B><DD><P>
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<UL>
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<LI>The function is only available as fastcall function, so it may only
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be used in presence of a prototype.</LI>
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<LI>The order in which the two bytes are written is undefined.</LI>
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</UL>
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</P>
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<DT><B>Availability</B><DD><P>cc65</P>
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<DT><B>See also</B><DD><P>
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<A HREF="funcref-59.html#POKE">POKE</A>,
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<A HREF="funcref-60.html#POKEW">POKEW</A>,
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<A HREF="funcref-161.html#peekbsys">peekbsys</A>,
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<A HREF="funcref-162.html#peekwsys">peekwsys</A>,
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<A HREF="funcref-164.html#pokebsys">pokebsys</A></P>
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<DT><B>Example</B><DD><P>None.</P>
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