00499         next.<a class="code" href="unionAddress.html#o0">l</a> = <a class="code" href="buffer_8c.html#a0">diskSect</a>.<a class="code" href="unionDiskBlock.html#o4">Fat32Table</a>[entryNumber];00500       }00501     }<span class="comment">//This repeats until there is a discontinuity</span>00502     00503     <span class="comment">/* next.l now has the cluster entry for last cluster in fragment</span>00504 <span class="comment">       it has a high value if eof (see FAT spec) */</span>00505 00506     00507     ConsoleWrite(<span class="stringliteral">"Size: "</span>);00508     ConsolePutUInt(fragment[c].length);00509     ConsoleWrite(<span class="stringliteral">"sectors."</span>);00510 00511     <span class="comment">//EOF test</span>00512     <span class="keywordflow">if</span> ((next.<a class="code" href="unionAddress.html#o1">b</a>.<a class="code" href="structAddress_1_1B.html#o3">b3</a>&amp;0x08) <span class="comment">//Quick test</span>00513         &amp;&amp; ((next.<a class="code" href="unionAddress.html#o0">l</a>&gt;0x0ffffff0) | !<a class="code" href="filesys_8h.html#a0">IS_FAT_32</a>)){ <span class="comment">//Complete test</span>00514       <span class="comment">//EOF</span>00515       ConsoleWrite(<span class="stringliteral">" &lt;EOF&gt;\r"</span>);00516       <a class="code" href="buffer_8c.html#a2">sectorAddress</a>.<a class="code" href="unionAddress.html#o1">b</a>.<a class="code" href="structAddress_1_1B.html#o3">b3</a> = 0xff;00517     }<span class="keywordflow">else</span>{00518       00519       <span class="comment">//Determine next physical sector for next fragment</span>00520       <a class="code" href="buffer_8c.html#a2">sectorAddress</a>.<a class="code" href="unionAddress.html#o0">l</a> = next.<a class="code" href="unionAddress.html#o0">l</a>;00521       <a class="code" href="buffer_8c.html#a2">sectorAddress</a>.<a class="code" href="unionAddress.html#o0">l</a> *= <a class="code" href="filesys_8c.html#a5">fatSectorsPerCluster</a>;00522       <a class="code" href="buffer_8c.html#a2">sectorAddress</a>.<a class="code" href="unionAddress.html#o0">l</a> += <a class="code" href="filesys_8c.html#a4">dataStart</a>;00523     }00524     00525     c++; <span class="comment">//Advance to next fragment number</span>00526     00527     <span class="keywordflow">if</span> (c==<a class="code" href="filesys_8c.html#a0">MAX_NUMBER_FRAGMENTS</a>){00528       <span class="comment">//End of RAM space allocated for fragment table</span>00529       <span class="comment">//Force end-of-file</span>00530       <a class="code" href="buffer_8c.html#a2">sectorAddress</a>.<a class="code" href="unionAddress.html#o1">b</a>.<a class="code" href="structAddress_1_1B.html#o3">b3</a>=0xff;00531     }00532     00533   }<span class="comment">//break or continue to next cluster</span>00534   00535   <span class="keywordflow">return</span> c; <span class="comment">//Return number of fragments;</span>00536 }</div></pre><p>Here is the call graph for this function:<p><center><img src="filesys_8h_a10_cgraph.png" border="0" usemap="#filesys_8h_a10_cgraph_map" alt=""></center><map name="filesys_8h_a10_cgraph_map"><area href="storage_8h.html#a2" shape="rect" coords="189,31,290,54" alt=""><area href="mmc_8c.html#a9" shape="rect" coords="341,7,466,31" alt=""><area href="mmc_8h.html#a2" shape="rect" coords="365,54,442,78" alt=""></map>    </td>  </tr></table><a class="anchor" name="a9" doxytag="filesys.h::FGetChar" ></a><p><table class="mdTable" width="100%" cellpadding="2" cellspacing="0">  <tr>    <td class="mdRow">      <table cellpadding="0" cellspacing="0" border="0">        <tr>          <td class="md" nowrap valign="top"> unsigned char FGetChar           </td>          <td class="md" valign="top">(&nbsp;</td>          <td class="mdname1" valign="top" nowrap>          </td>          <td class="md" valign="top">&nbsp;)&nbsp;</td>          <td class="md" nowrap></td>        </tr>      </table>    </td>  </tr></table><table cellspacing=5 cellpadding=0 border=0>  <tr>    <td>      &nbsp;    </td>    <td><p>Read a character from current file. <p>This can be called after calling OpenFile. It is a slow method for reading character based file data. fileSize holds the number of characters still left in file to be read, check for fileSize=0 to detect end-of-file. If FGetChar is called after the end of file is reached, it does nothing and returns 0. <p>Definition at line <a class="el" href="filesys_8c-source.html#l00561">561</a> of file <a class="el" href="filesys_8c-source.html">filesys.c</a>.<p>References <a class="el" href="buffer_8h-source.html#l00107">DiskBlock::Raw::buf</a>, <a class="el" href="buffer_8c-source.html#l00013">dataBufPtr</a>, <a class="el" href="buffer_8c-source.html#l00010">diskSect</a>, <a class="el" href="filesys_8c-source.html#l00047">fileSize</a>, <a class="el" href="buffer_8h-source.html#l00129">Address::l</a>, <a class="el" href="filesys_8c-source.html#l00541">LoadNextSector()</a>, <a class="el" href="board_8h-source.html#l00280">Public</a>, <a class="el" href="unionDiskBlock.html#o1">DiskBlock::raw</a>, <a class="el" href="storage_8c-source.html#l00110">ReadDiskSector()</a>, and <a class="el" href="buffer_8c-source.html#l00015">sectorAddress</a>.<p>Referenced by <a class="el" href="aviplay_8c-source.html#l00015">GetAVIBlock()</a>.<p><pre class="fragment"><div>00561                                {00562 00563   <span class="keywordflow">if</span> (!<a class="code" href="filesys_8c.html#a7">fileSize</a>) <span class="keywordflow">return</span> 0; <span class="comment">//return 0 for end-of-file</span>00564 00565   <span class="keywordflow">if</span> (<a class="code" href="buffer_8c.html#a1">dataBufPtr</a>==0){00566     <span class="comment">/* A file has been opened but not read from yet, so read the first</span>00567 <span class="comment">       sector. */</span>00568     <a class="code" href="storage_8h.html#a2">ReadDiskSector</a>(<a class="code" href="buffer_8c.html#a2">sectorAddress</a>.<a class="code" href="unionAddress.html#o0">l</a>);00569     <a class="code" href="buffer_8c.html#a1">dataBufPtr</a> = <a class="code" href="buffer_8c.html#a0">diskSect</a>.<a class="code" href="unionDiskBlock.html#o1">raw</a>.<a class="code" href="structDiskBlock_1_1Raw.html#o0">buf</a>;00570   }00571 00572   <span class="keywordflow">if</span> (<a class="code" href="buffer_8c.html#a1">dataBufPtr</a>&gt;<a class="code" href="buffer_8c.html#a0">diskSect</a>.<a class="code" href="unionDiskBlock.html#o1">raw</a>.<a class="code" href="structDiskBlock_1_1Raw.html#o0">buf</a>+511){00573     <span class="comment">/* An end of sector has been reached, read the next sector */</span>    00574     <span class="keywordflow">if</span> (<a class="code" href="filesys_8c.html#a20">LoadNextSector</a>()){00575       <span class="comment">/* Error, end-of-file according to FAT records */</span>00576       <span class="keywordflow">return</span> 0; <span class="comment">/* must return something */</span>00577     }00578     <a class="code" href="buffer_8c.html#a1">dataBufPtr</a>=<a class="code" href="buffer_8c.html#a0">diskSect</a>.<a class="code" href="unionDiskBlock.html#o1">raw</a>.<a class="code" href="structDiskBlock_1_1Raw.html#o0">buf</a>;00579   }00580 00581   <span class="comment">/* Everything should now be ok for reading a byte. */</span>00582 00583   <a class="code" href="filesys_8c.html#a7">fileSize</a>--;00584   <span class="keywordflow">return</span> (*<a class="code" href="buffer_8c.html#a1">dataBufPtr</a>++);00585 }</div></pre><p>Here is the call graph for this function:<p><center><img src="filesys_8h_a9_cgraph.png" border="0" usemap="#filesys_8h_a9_cgraph_map" alt=""></center><map name="filesys_8h_a9_cgraph_map"><area href="filesys_8c.html#a20" shape="rect" coords="133,56,235,80" alt=""><area href="storage_8h.html#a2" shape="rect" coords="429,56,530,80" alt=""><area href="filesys_8c.html#a18" shape="rect" coords="285,6,378,30" alt=""></map>    </td>  </tr></table><a class="anchor" name="a7" doxytag="filesys.h::InitFileSystem" ></a><p><table class="mdTable" width="100%" cellpadding="2" cellspacing="0">  <tr>    <td class="mdRow">      <table cellpadding="0" cellspacing="0" border="0">        <tr>          <td class="md" nowrap valign="top"> unsigned char InitFileSystem           </td>          <td class="md" valign="top">(&nbsp;</td>          <td class="mdname1" valign="top" nowrap>          </td>          <td class="md" valign="top">&nbsp;)&nbsp;</td>          <td class="md" nowrap></td>        </tr>      </table>    </td>  </tr></table><table cellspacing=5 cellpadding=0 border=0>  <tr>    <td>      &nbsp;    </td>    <td>