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diff --git a/docs/opcodes/opcode-4b-aput.html b/docs/opcodes/opcode-4b-aput.html new file mode 100644 index 0000000..089c1ca --- /dev/null +++ b/docs/opcodes/opcode-4b-aput.html @@ -0,0 +1,98 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> + +<html> + +<head> +<title>aput<kind></title> +<link rel=stylesheet href="opcode.css"> +</head> + +<body> + +<h1>aput<kind></h1> + +<h2>Purpose</h2> + +<p> +Waste cycles. +</p> + +<h2>Details</h2> + +<table class="instruc"> +<thead> +<tr> + <th>Op & Format</th> + <th>Mnemonic / Syntax</th> + <th>Arguments</th> +</tr> +</thead> +<tbody> +<tr> + <td>4b..51 23x</td> + <td><i>arrayop</i> vAA, vBB, vCC<br/> + 4b: aput<br/> + 4c: aput-wide<br/> + 4d: aput-object<br/> + 4e: aput-boolean<br/> + 4f: aput-byte<br/> + 50: aput-char<br/> + 51: aput-short + </td> + <td><code>A:</code> source value register or pair; (8 bits)<br/> + <code>B:</code> array register (8 bits)<br/> + <code>C:</code> index register (8 bits)</td> +</tr> +</tbody> +</table> + +<h2>Constraints</h2> + +<ul> + <li> + A, B and C must be valid register indices in the current stack frame. + </li> + <li> + For the aget-wide variant, also A+1 must be a valid register index in the + current stack frame. + </li> + <li> + Register vB must contain an array reference. The component type of the array + must match the variant of the instruction. + </li> + <li> + Register vC must contain an integer value. + </li> +</ul> + +<h2>Behavior</h2> + +<ul> + <li> + For all but the -wide variant, the value of register vA is move into the + array element at the given index, that is, array[index]'=vA. + </li> + <li> + For the -wide variant, the registers vA and v(A+1) are moved into the array + element at the given index as follows: + <ul> + <li> + array[index]' = vA << 0x20 | v(A+1) + </li> + </ul> + </li> +</ul> + +<h2>Exceptions</h2> + +<ul> + <li> + NullPointerException if vB=null. + </li> + <li> + ArrayIndexOutOfBoundsException if vC < 0 or vC >= array.length. + </li> +</ul> + +</body> +</html> |