223cc6685e
git-svn-id: svn://svn.compuextreme.de/Viitor/V963/Viitor_cc65@5933 504e572c-2e33-0410-9681-be2bf7408885
65 lines
2.0 KiB
HTML
65 lines
2.0 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
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<HTML>
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<HEAD>
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<META NAME="GENERATOR" CONTENT="LinuxDoc-Tools 0.9.20">
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<TITLE>Diskette Sector I/O Routines: Reading and writing sectors</TITLE>
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<LINK HREF="dio-3.html" REL=next>
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<LINK HREF="dio-1.html" REL=previous>
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<LINK HREF="dio.html#toc2" REL=contents>
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</HEAD>
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<BODY>
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<A HREF="dio-3.html">Next</A>
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<A HREF="dio-1.html">Previous</A>
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<A HREF="dio.html#toc2">Contents</A>
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<HR>
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<H2><A NAME="s2">2.</A> <A HREF="dio.html#toc2">Reading and writing sectors</A></H2>
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<P>The read and write functions are:</P>
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<P>
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<BLOCKQUOTE><CODE>
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<PRE>
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unsigned char __fastcall__ dio_read (dhandle_t handle,
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sectnum_t sect_num,
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void *buffer);
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</PRE>
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</CODE></BLOCKQUOTE>
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</P>
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<P>This function will read the sector specified by <CODE>sect_num</CODE> into the memory
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location at buffer.</P>
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<P>
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<BLOCKQUOTE><CODE>
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<PRE>
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unsigned char __fastcall__ dio_write (dhandle_t handle,
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sectnum_t sect_num,
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const void *buffer);
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</PRE>
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</CODE></BLOCKQUOTE>
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</P>
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<P>This function will write the memory contents at buffer to the sector specified
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by <CODE>sect_num</CODE>. No verify is performed.</P>
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<P>
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<BLOCKQUOTE><CODE>
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<PRE>
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unsigned char __fastcall__ dio_write_verify (dhandle_t handle,
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sectnum_t sect_num,
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const void *buffer);
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</PRE>
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</CODE></BLOCKQUOTE>
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</P>
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<P>This function will write the memory contents at buffer to the sector specified
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by <CODE>sect_num</CODE>. A verification is performed.</P>
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<P>Use the <CODE>
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<A HREF="dio-3.html#sectsize">dio_query_sectsize</A></CODE> function to query the size of a sector.</P>
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<P>All these functions will return 0 for success and an OS specific error code in
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case of failure.</P>
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<HR>
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<A HREF="dio-3.html">Next</A>
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<A HREF="dio-1.html">Previous</A>
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<A HREF="dio.html#toc2">Contents</A>
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