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TomAwezome 6b3fd2fecb Rename abs_addres to abs_address. 
Update documentation/comments to rename addr, fun, var, stmt, blk, desc, reg, seg, ptr, dup, clus, val, and bttn, to address, function, variable, statement, block, description, register, segment, pointer, duplicate, cluster, value, and button, respectively.
2021-10-06 21:35:32 -04:00

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<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=US-ASCII">
<meta name="generator" content="ZealOS V1.01">
<style type="text/css">
body {background-color:#fef1f0;}
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</style>
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<body>
<pre style="font-family:monospace;font-size:12pt">
<a name="l1"></a><span class=cF9>I64</span><span class=cF0> </span><span class=cF5>ClusNumNext</span><span class=cF0>(</span><span class=cF9>CDrive</span><span class=cF0> *drive, </span><span class=cF9>I64</span><span class=cF0> c, </span><span class=cF9>I64</span><span class=cF0> count=</span><span class=cFE>1</span><span class=cF0>)
<a name="l2"></a>{</span><span class=cF2>//Return next count'th cluster in chain.</span><span class=cF0>
<a name="l3"></a> </span><span class=cF1>Bool</span><span class=cF0> unlock;
<a name="l4"></a>
<a name="l5"></a> </span><span class=cF5>DriveCheck</span><span class=cF0>(drive);
<a name="l6"></a> </span><span class=cF1>if</span><span class=cF0> (count &lt;= </span><span class=cFE>0</span><span class=cF0>) </span><span class=cF1>return</span><span class=cF0> c;
<a name="l7"></a> </span><span class=cF1>try</span><span class=cF0>
<a name="l8"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l9"></a> unlock = </span><span class=cF5>DriveLock</span><span class=cF0>(drive);
<a name="l10"></a> </span><span class=cF1>switch</span><span class=cF0> (drive-&gt;fs_type)
<a name="l11"></a> {
<a name="l12"></a> </span><span class=cF1>case</span><span class=cF0> </span><span class=cF3>FSt_REDSEA</span><span class=cF0>:
<a name="l13"></a> c += count;
<a name="l14"></a> </span><span class=cF1>break</span><span class=cF0>;
<a name="l15"></a>
<a name="l16"></a> </span><span class=cF1>case</span><span class=cF0> </span><span class=cF3>FSt_FAT32</span><span class=cF0>:
<a name="l17"></a> </span><span class=cF1>while</span><span class=cF0> (count-- &gt; </span><span class=cFE>0</span><span class=cF0> &amp;&amp; </span><span class=cFE>0</span><span class=cF0> &lt; c &lt; </span><span class=cFE>0x0FFFFFF8</span><span class=cF0>)
<a name="l18"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l19"></a> </span><span class=cFD>DriveFATBlkSet</span><span class=cF0>(drive, c);
<a name="l20"></a> c = drive-&gt;cur_fat_blk[c &amp; (</span><span class=cF3>BLK_SIZE</span><span class=cF0> / </span><span class=cFE>4</span><span class=cF0> - </span><span class=cFE>1</span><span class=cF0>)];
<a name="l21"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l22"></a> </span><span class=cF1>if</span><span class=cF0> (!</span><span class=cF7>(</span><span class=cFE>0</span><span class=cF0> &lt; c &lt; </span><span class=cFE>0x0FFFFFF8</span><span class=cF7>)</span><span class=cF0>)
<a name="l23"></a> c = </span><span class=cF3>INVALID_CLUS</span><span class=cF0>;
<a name="l24"></a> </span><span class=cF1>break</span><span class=cF0>;
<a name="l25"></a>
<a name="l26"></a> </span><span class=cF1>default</span><span class=cF0>:
<a name="l27"></a> </span><span class=cF5>throw</span><span class=cF0>(</span><span class=cF6>'Drive'</span><span class=cF0>);
<a name="l28"></a> }
<a name="l29"></a> </span><span class=cF1>if</span><span class=cF0> (unlock)
<a name="l30"></a> </span><span class=cF5>DriveUnlock</span><span class=cF0>(drive);
<a name="l31"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l32"></a> </span><span class=cF1>catch</span><span class=cF0>
<a name="l33"></a> </span><span class=cF1>if</span><span class=cF0> (unlock)
<a name="l34"></a> </span><span class=cF5>DriveUnlock</span><span class=cF0>(drive);
<a name="l35"></a>
<a name="l36"></a> </span><span class=cF1>return</span><span class=cF0> c;
<a name="l37"></a>}
<a name="l38"></a>
<a name="l39"></a></span><span class=cF9>I64</span><span class=cF0> </span><span class=cF5>Clus2Blk</span><span class=cF0>(</span><span class=cF9>CDrive</span><span class=cF0> *drive, </span><span class=cF9>I64</span><span class=cF0> c)
<a name="l40"></a>{</span><span class=cF2>//Drive cluster num to block num.</span><span class=cF0>
<a name="l41"></a> </span><span class=cF5>DriveCheck</span><span class=cF0>(drive);
<a name="l42"></a> </span><span class=cF1>switch</span><span class=cF0> (drive-&gt;fs_type)
<a name="l43"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l44"></a> </span><span class=cF1>case</span><span class=cF0> </span><span class=cF3>FSt_REDSEA</span><span class=cF0>:
<a name="l45"></a> </span><span class=cF1>return</span><span class=cF0> c;
<a name="l46"></a>
<a name="l47"></a> </span><span class=cF1>case</span><span class=cF0> </span><span class=cF3>FSt_FAT32</span><span class=cF0>:
<a name="l48"></a> </span><span class=cF1>return</span><span class=cF0> drive-&gt;data_area + c * drive-&gt;spc;
<a name="l49"></a>
<a name="l50"></a> </span><span class=cF1>default</span><span class=cF0>:
<a name="l51"></a> </span><span class=cF5>throw</span><span class=cF0>(</span><span class=cF6>'Drive'</span><span class=cF0>);
<a name="l52"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l53"></a>}
<a name="l54"></a>
<a name="l55"></a></span><span class=cF9>I64</span><span class=cF0> </span><span class=cF5>ClusBlkRead</span><span class=cF0>(</span><span class=cF9>CDrive</span><span class=cF0> *drive, </span><span class=cF1>U8</span><span class=cF0> *buf, </span><span class=cF9>I64</span><span class=cF0> c, </span><span class=cF9>I64</span><span class=cF0> blks)
<a name="l56"></a>{</span><span class=cF2>//Accepts block count, so padding on last cluster is not read.</span><span class=cF0>
<a name="l57"></a> </span><span class=cF9>I64</span><span class=cF0> i;
<a name="l58"></a> </span><span class=cF1>Bool</span><span class=cF0> unlock;
<a name="l59"></a>
<a name="l60"></a> </span><span class=cF5>DriveCheck</span><span class=cF0>(drive);
<a name="l61"></a> </span><span class=cF1>if</span><span class=cF0> (blks &lt;= </span><span class=cFE>0</span><span class=cF0>) </span><span class=cF1>return</span><span class=cF0> c;
<a name="l62"></a> </span><span class=cF1>try</span><span class=cF0>
<a name="l63"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l64"></a> unlock = </span><span class=cF5>DriveLock</span><span class=cF0>(drive);
<a name="l65"></a> </span><span class=cF1>switch</span><span class=cF0> (drive-&gt;fs_type)
<a name="l66"></a> {
<a name="l67"></a> </span><span class=cF1>case</span><span class=cF0> </span><span class=cF3>FSt_REDSEA</span><span class=cF0>:
<a name="l68"></a> </span><span class=cF5>BlkRead</span><span class=cF0>(drive, buf, c, blks);
<a name="l69"></a> c += blks;
<a name="l70"></a> </span><span class=cF1>break</span><span class=cF0>;
<a name="l71"></a>
<a name="l72"></a> </span><span class=cF1>case</span><span class=cF0> </span><span class=cF3>FSt_FAT32</span><span class=cF0>:
<a name="l73"></a> </span><span class=cF1>while</span><span class=cF0> (blks &amp;&amp; </span><span class=cFE>0</span><span class=cF0> &lt; c &lt; </span><span class=cFE>0x0FFFFFF8</span><span class=cF0>)
<a name="l74"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l75"></a> i = blks;
<a name="l76"></a> </span><span class=cF1>if</span><span class=cF0> (i &gt; drive-&gt;spc)
<a name="l77"></a> i = drive-&gt;spc;
<a name="l78"></a> </span><span class=cF5>BlkRead</span><span class=cF0>(drive, buf, drive-&gt;data_area + c * drive-&gt;spc, i);
<a name="l79"></a> buf+=i &lt;&lt; </span><span class=cF3>BLK_SIZE_BITS</span><span class=cF0>;
<a name="l80"></a> c = </span><span class=cF5>ClusNumNext</span><span class=cF0>(drive, c, </span><span class=cFE>1</span><span class=cF0>);
<a name="l81"></a> blks -= i;
<a name="l82"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l83"></a> </span><span class=cF1>if</span><span class=cF0> (blks)
<a name="l84"></a> </span><span class=cF5>throw</span><span class=cF0>(</span><span class=cF6>'Drive'</span><span class=cF0>);
<a name="l85"></a> </span><span class=cF1>break</span><span class=cF0>;
<a name="l86"></a>
<a name="l87"></a> </span><span class=cF1>default</span><span class=cF0>:
<a name="l88"></a> </span><span class=cF5>throw</span><span class=cF0>(</span><span class=cF6>'Drive'</span><span class=cF0>);
<a name="l89"></a> }
<a name="l90"></a> </span><span class=cF1>if</span><span class=cF0> (unlock)
<a name="l91"></a> </span><span class=cF5>DriveUnlock</span><span class=cF0>(drive);
<a name="l92"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l93"></a> </span><span class=cF1>catch</span><span class=cF0>
<a name="l94"></a> </span><span class=cF1>if</span><span class=cF0> (unlock)
<a name="l95"></a> </span><span class=cF5>DriveUnlock</span><span class=cF0>(drive);
<a name="l96"></a>
<a name="l97"></a> </span><span class=cF1>return</span><span class=cF0> c;
<a name="l98"></a>}
<a name="l99"></a>
<a name="l100"></a></span><span class=cF9>I64</span><span class=cF0> </span><span class=cF5>ClusRead</span><span class=cF0>(</span><span class=cF9>CDrive</span><span class=cF0> *drive, </span><span class=cF1>U8</span><span class=cF0> *buf, </span><span class=cF9>I64</span><span class=cF0> c, </span><span class=cF9>I64</span><span class=cF0> count)
<a name="l101"></a>{</span><span class=cF2>//Read cluster count from drive to buf.</span><span class=cF0>
<a name="l102"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cF5>ClusBlkRead</span><span class=cF0>(drive, buf, c, count*drive-&gt;spc);
<a name="l103"></a>}
<a name="l104"></a>
<a name="l105"></a></span><span class=cF9>I64</span><span class=cF0> </span><span class=cF5>ClusBlkWrite</span><span class=cF0>(</span><span class=cF9>CDrive</span><span class=cF0> *drive, </span><span class=cF1>U8</span><span class=cF0> *buf, </span><span class=cF9>I64</span><span class=cF0> c, </span><span class=cF9>I64</span><span class=cF0> blks)
<a name="l106"></a>{</span><span class=cF2>//Accepts block count, so padding on last cluster is not written.</span><span class=cF0>
<a name="l107"></a> </span><span class=cF9>I64</span><span class=cF0> i;
<a name="l108"></a> </span><span class=cF1>Bool</span><span class=cF0> unlock;
<a name="l109"></a>
<a name="l110"></a> </span><span class=cF5>DriveCheck</span><span class=cF0>(drive);
<a name="l111"></a> </span><span class=cF1>if</span><span class=cF0> (blks &lt;= </span><span class=cFE>0</span><span class=cF0>) </span><span class=cF1>return</span><span class=cF0> c;
<a name="l112"></a> </span><span class=cF1>try</span><span class=cF0>
<a name="l113"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l114"></a> unlock = </span><span class=cF5>DriveLock</span><span class=cF0>(drive);
<a name="l115"></a> </span><span class=cF1>switch</span><span class=cF0> (drive-&gt;fs_type)
<a name="l116"></a> {
<a name="l117"></a> </span><span class=cF1>case</span><span class=cF0> </span><span class=cF3>FSt_REDSEA</span><span class=cF0>:
<a name="l118"></a> </span><span class=cF5>BlkWrite</span><span class=cF0>(drive, buf, c, blks);
<a name="l119"></a> c = </span><span class=cFE>0</span><span class=cF0>;
<a name="l120"></a> </span><span class=cF1>break</span><span class=cF0>;
<a name="l121"></a>
<a name="l122"></a> </span><span class=cF1>case</span><span class=cF0> </span><span class=cF3>FSt_FAT32</span><span class=cF0>:
<a name="l123"></a> </span><span class=cF1>while</span><span class=cF0> (blks)
<a name="l124"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l125"></a> </span><span class=cF1>if</span><span class=cF0> (!</span><span class=cF7>(</span><span class=cFE>0</span><span class=cF0> &lt; c &lt; </span><span class=cFE>0x0FFFFFF8</span><span class=cF7>)</span><span class=cF0>)
<a name="l126"></a> </span><span class=cF5>throw</span><span class=cF0>(</span><span class=cF6>'Drive'</span><span class=cF0>);
<a name="l127"></a> i = blks;
<a name="l128"></a> </span><span class=cF1>if</span><span class=cF0> (i &gt; drive-&gt;spc)
<a name="l129"></a> i = drive-&gt;spc;
<a name="l130"></a> </span><span class=cF5>BlkWrite</span><span class=cF0>(drive, buf, drive-&gt;data_area + c * drive-&gt;spc, i);
<a name="l131"></a> buf += i &lt;&lt; </span><span class=cF3>BLK_SIZE_BITS</span><span class=cF0>;
<a name="l132"></a> c = </span><span class=cF5>ClusNumNext</span><span class=cF0>(drive, c);
<a name="l133"></a> blks -= i;
<a name="l134"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l135"></a> </span><span class=cF1>break</span><span class=cF0>;
<a name="l136"></a>
<a name="l137"></a> </span><span class=cF1>default</span><span class=cF0>:
<a name="l138"></a> </span><span class=cF5>throw</span><span class=cF0>(</span><span class=cF6>'Drive'</span><span class=cF0>);
<a name="l139"></a> }
<a name="l140"></a> </span><span class=cF1>if</span><span class=cF0> (unlock)
<a name="l141"></a> </span><span class=cF5>DriveUnlock</span><span class=cF0>(drive);
<a name="l142"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l143"></a> </span><span class=cF1>catch</span><span class=cF0>
<a name="l144"></a> </span><span class=cF1>if</span><span class=cF0> (unlock)
<a name="l145"></a> </span><span class=cF5>DriveUnlock</span><span class=cF0>(drive);
<a name="l146"></a>
<a name="l147"></a> </span><span class=cF1>return</span><span class=cF0> c;
<a name="l148"></a>}
<a name="l149"></a>
<a name="l150"></a></span><span class=cF9>I64</span><span class=cF0> </span><span class=cF5>ClusWrite</span><span class=cF0>(</span><span class=cF9>CDrive</span><span class=cF0> *drive, </span><span class=cF1>U8</span><span class=cF0> *buf, </span><span class=cF9>I64</span><span class=cF0> c, </span><span class=cF9>I64</span><span class=cF0> count)
<a name="l151"></a>{</span><span class=cF2>//Write cluster count from buf to drive.</span><span class=cF0>
<a name="l152"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cF5>ClusBlkWrite</span><span class=cF0>(drive, buf, c, count * drive-&gt;spc);
<a name="l153"></a>}
<a name="l154"></a>
<a name="l155"></a></span><span class=cF9>I64</span><span class=cF0> </span><span class=cF5>ClusAlloc</span><span class=cF0>(</span><span class=cF9>CDrive</span><span class=cF0> *drive, </span><span class=cF9>I64</span><span class=cF0> c=</span><span class=cFE>0</span><span class=cF0>, </span><span class=cF9>I64</span><span class=cF0> count=</span><span class=cFE>1</span><span class=cF0>, </span><span class=cF1>Bool</span><span class=cF0> contiguous=</span><span class=cF3>FALSE</span><span class=cF0>)
<a name="l156"></a>{</span><span class=cF2>//Alloc cluster count into chain.</span><span class=cF0>
<a name="l157"></a></span><span class=cF2>//c=0 means first cluster in chain</span><span class=cF0>
<a name="l158"></a> </span><span class=cF5>DriveCheck</span><span class=cF0>(drive);
<a name="l159"></a> </span><span class=cF1>if</span><span class=cF0> (count &lt;= </span><span class=cFE>0</span><span class=cF0>) </span><span class=cF1>return</span><span class=cF0> c;
<a name="l160"></a> </span><span class=cF1>switch</span><span class=cF0> (drive-&gt;fs_type)
<a name="l161"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l162"></a> </span><span class=cF1>case</span><span class=cF0> </span><span class=cF3>FSt_REDSEA</span><span class=cF0>:
<a name="l163"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cFD>RedSeaAllocClus</span><span class=cF0>(drive, count);
<a name="l164"></a>
<a name="l165"></a> </span><span class=cF1>case</span><span class=cF0> </span><span class=cF3>FSt_FAT32</span><span class=cF0>:
<a name="l166"></a> </span><span class=cF1>if</span><span class=cF0> (contiguous)
<a name="l167"></a> {
<a name="l168"></a> </span><span class=cF1>if</span><span class=cF0> (c) </span><span class=cF5>throw</span><span class=cF0>(</span><span class=cF6>'File'</span><span class=cF0>);
<a name="l169"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cFD>FAT32AllocContiguousClus</span><span class=cF0>(drive, count);
<a name="l170"></a> }
<a name="l171"></a> </span><span class=cF1>else</span><span class=cF0>
<a name="l172"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cFD>FAT32AllocClus</span><span class=cF0>(drive, c, count);
<a name="l173"></a>
<a name="l174"></a> </span><span class=cF1>default</span><span class=cF0>:
<a name="l175"></a> </span><span class=cF5>throw</span><span class=cF0>(</span><span class=cF6>'Drive'</span><span class=cF0>);
<a name="l176"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l177"></a>}
</span></pre></body>
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