1<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> 2 3<html> 4 5<head> 6<title>aput<kind></title> 7<link rel=stylesheet href="opcode.css"> 8</head> 9 10<body> 11 12<h1>aput<kind></h1> 13 14<h2>Purpose</h2> 15 16<p> 17Waste cycles. 18</p> 19 20<h2>Details</h2> 21 22<table class="instruc"> 23<thead> 24<tr> 25 <th>Op & Format</th> 26 <th>Mnemonic / Syntax</th> 27 <th>Arguments</th> 28</tr> 29</thead> 30<tbody> 31<tr> 32 <td>4b..51 23x</td> 33 <td><i>arrayop</i> vAA, vBB, vCC<br/> 34 4b: aput<br/> 35 4c: aput-wide<br/> 36 4d: aput-object<br/> 37 4e: aput-boolean<br/> 38 4f: aput-byte<br/> 39 50: aput-char<br/> 40 51: aput-short 41 </td> 42 <td><code>A:</code> source value register or pair; (8 bits)<br/> 43 <code>B:</code> array register (8 bits)<br/> 44 <code>C:</code> index register (8 bits)</td> 45</tr> 46</tbody> 47</table> 48 49<h2>Constraints</h2> 50 51<ul> 52 <li> 53 A, B and C must be valid register indices in the current stack frame. 54 </li> 55 <li> 56 For the aget-wide variant, also A+1 must be a valid register index in the 57 current stack frame. 58 </li> 59 <li> 60 Register vB must contain an array reference. The component type of the array 61 must match the variant of the instruction. 62 </li> 63 <li> 64 Register vC must contain an integer value. 65 </li> 66</ul> 67 68<h2>Behavior</h2> 69 70<ul> 71 <li> 72 For all but the -wide variant, the value of register vA is move into the 73 array element at the given index, that is, array[index]'=vA. 74 </li> 75 <li> 76 For the -wide variant, the registers vA and v(A+1) are moved into the array 77 element at the given index as follows: 78 <ul> 79 <li> 80 array[index]' = vA << 0x20 | v(A+1) 81 </li> 82 </ul> 83 </li> 84</ul> 85 86<h2>Exceptions</h2> 87 88<ul> 89 <li> 90 NullPointerException if vB=null. 91 </li> 92 <li> 93 ArrayIndexOutOfBoundsException if vC < 0 or vC >= array.length. 94 </li> 95</ul> 96 97</body> 98</html> 99