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      6 <title>sget&lt;kind&gt;</title>
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     10 <body>
     11 
     12 <h1>sget&lt;kind&gt;</h1>
     13 
     14 <h2>Purpose</h2>
     15 
     16 <p>
     17 Perform the identified object static field operation with the identified static
     18 field, loading or storing into the value register.
     19 </p>
     20 <p>
     21 Note: These opcodes are reasonable candidates for static linking, altering the
     22 field argument to be a more direct offset.
     23 </p>
     24 
     25 <h2>Details</h2>
     26 
     27 <table class="instruc">
     28 <thead>
     29 <tr>
     30   <th>Op &amp; Format</th>
     31   <th>Mnemonic / Syntax</th>
     32   <th>Arguments</th>
     33 </tr>
     34 </thead>
     35 <tbody>
     36 <tr>
     37   <td>60..6d 21c</td>
     38   <td>s<i>staticop</i> vAA, field@BBBB<br/>
     39     60: sget<br/>
     40     61: sget-wide<br/>
     41     62: sget-object<br/>
     42     63: sget-boolean<br/>
     43     64: sget-byte<br/>
     44     65: sget-char<br/>
     45     66: sget-short<br/>
     46   </td>
     47   <td><code>A:</code> dest value register or pair; (8 bits)<br/>
     48     <code>B:</code> static field reference index (16 bits)</td>
     49 </tr>
     50 </tbody>
     51 </table>
     52 
     53 <h2>Constraints</h2>
     54 
     55 <ul>
     56   <li>
     57     A must be a valid register index in the current stackframe.
     58   </li>
     59   <li>
     60     For the -wide variant, also A+1 must be a valid register index in the
     61     current stackframe.
     62   </li>
     63   <li>
     64     B must be a valid index into the field reference pool.
     65   </li>
     66   <li>
     67     The field denoted by B must be static. The type of the field denoted by B
     68     must match the variant of the instruction.
     69   </li>
     70 </ul>
     71 
     72 <h2>Behavior</h2>
     73 
     74 <ul>
     75   <li>
     76     The value of the given instance field is read from the given object and
     77     moved into the given register vA, that is, vA'=&lt;class&gt;.&lt;field&gt;.
     78   </li>
     79   <li>
     80     If v(A-1) is the lower half of a register pair, v(A-1)' becomes undefined.
     81   </li>
     82   <li>
     83     For all but the -wide variant, if v(A+1) is the upper half of a register
     84     pair, v(A+1)' becomes undefined.
     85   </li>
     86   <li>
     87     For the -wide variant, if v(A+2) is the upper half of a register pair,
     88     v(A+2)' becomes undefined.
     89   </li>
     90 </ul>
     91 
     92 <h2>Exceptions</h2>
     93 
     94 <ul>
     95   <li>
     96     NullPointerException if object is null.
     97   </li>
     98   <li>
     99     IllegalAccessException if &lt;object&gt;.&lt;field&gt; is not visible from
    100     the current context according to the usual visibility and access rules of
    101     the Java programming language.
    102   </li>
    103 </ul>
    104 
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