You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
90 lines
4.0 KiB
HTML
90 lines
4.0 KiB
HTML
4 years ago
|
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
||
|
|
<html>
|
||
|
|
<!-- This file documents the GNU Assembler "as".
|
||
|
|
|
||
|
|
Copyright (C) 1991-2019 Free Software Foundation, Inc.
|
||
|
|
|
||
|
|
Permission is granted to copy, distribute and/or modify this document
|
||
|
|
under the terms of the GNU Free Documentation License, Version 1.3
|
||
|
|
or any later version published by the Free Software Foundation;
|
||
|
|
with no Invariant Sections, with no Front-Cover Texts, and with no
|
||
|
|
Back-Cover Texts. A copy of the license is included in the
|
||
|
|
section entitled "GNU Free Documentation License".
|
||
|
|
-->
|
||
|
|
<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
|
||
|
|
<head>
|
||
|
|
<title>D10V-Subs (Using as)</title>
|
||
|
|
|
||
|
|
<meta name="description" content="D10V-Subs (Using as)">
|
||
|
|
<meta name="keywords" content="D10V-Subs (Using as)">
|
||
|
|
<meta name="resource-type" content="document">
|
||
|
|
<meta name="distribution" content="global">
|
||
|
|
<meta name="Generator" content="makeinfo">
|
||
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
||
|
|
<link href="index.html#Top" rel="start" title="Top">
|
||
|
|
<link href="AS-Index.html#AS-Index" rel="index" title="AS Index">
|
||
|
|
<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
|
||
|
|
<link href="D10V_002dSyntax.html#D10V_002dSyntax" rel="up" title="D10V-Syntax">
|
||
|
|
<link href="D10V_002dChars.html#D10V_002dChars" rel="next" title="D10V-Chars">
|
||
|
|
<link href="D10V_002dSize.html#D10V_002dSize" rel="prev" title="D10V-Size">
|
||
|
|
<style type="text/css">
|
||
|
|
<!--
|
||
|
|
a.summary-letter {text-decoration: none}
|
||
|
|
blockquote.indentedblock {margin-right: 0em}
|
||
|
|
blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
|
||
|
|
blockquote.smallquotation {font-size: smaller}
|
||
|
|
div.display {margin-left: 3.2em}
|
||
|
|
div.example {margin-left: 3.2em}
|
||
|
|
div.lisp {margin-left: 3.2em}
|
||
|
|
div.smalldisplay {margin-left: 3.2em}
|
||
|
|
div.smallexample {margin-left: 3.2em}
|
||
|
|
div.smalllisp {margin-left: 3.2em}
|
||
|
|
kbd {font-style: oblique}
|
||
|
|
pre.display {font-family: inherit}
|
||
|
|
pre.format {font-family: inherit}
|
||
|
|
pre.menu-comment {font-family: serif}
|
||
|
|
pre.menu-preformatted {font-family: serif}
|
||
|
|
pre.smalldisplay {font-family: inherit; font-size: smaller}
|
||
|
|
pre.smallexample {font-size: smaller}
|
||
|
|
pre.smallformat {font-family: inherit; font-size: smaller}
|
||
|
|
pre.smalllisp {font-size: smaller}
|
||
|
|
span.nolinebreak {white-space: nowrap}
|
||
|
|
span.roman {font-family: initial; font-weight: normal}
|
||
|
|
span.sansserif {font-family: sans-serif; font-weight: normal}
|
||
|
|
ul.no-bullet {list-style: none}
|
||
|
|
-->
|
||
|
|
</style>
|
||
|
|
|
||
|
|
|
||
|
|
</head>
|
||
|
|
|
||
|
|
<body lang="en">
|
||
|
|
<a name="D10V_002dSubs"></a>
|
||
|
|
<div class="header">
|
||
|
|
<p>
|
||
|
|
Next: <a href="D10V_002dChars.html#D10V_002dChars" accesskey="n" rel="next">D10V-Chars</a>, Previous: <a href="D10V_002dSize.html#D10V_002dSize" accesskey="p" rel="prev">D10V-Size</a>, Up: <a href="D10V_002dSyntax.html#D10V_002dSyntax" accesskey="u" rel="up">D10V-Syntax</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="AS-Index.html#AS-Index" title="Index" rel="index">Index</a>]</p>
|
||
|
|
</div>
|
||
|
|
<hr>
|
||
|
|
<a name="Sub_002dInstructions"></a>
|
||
|
|
<h4 class="subsubsection">9.10.2.2 Sub-Instructions</h4>
|
||
|
|
<a name="index-D10V-sub_002dinstructions"></a>
|
||
|
|
<a name="index-sub_002dinstructions_002c-D10V"></a>
|
||
|
|
<p>The D10V assembler takes as input a series of instructions, either one-per-line,
|
||
|
|
or in the special two-per-line format described in the next section. Some of these
|
||
|
|
instructions will be short-form or sub-instructions. These sub-instructions can be packed
|
||
|
|
into a single instruction. The assembler will do this automatically. It will also detect
|
||
|
|
when it should not pack instructions. For example, when a label is defined, the next
|
||
|
|
instruction will never be packaged with the previous one. Whenever a branch and link
|
||
|
|
instruction is called, it will not be packaged with the next instruction so the return
|
||
|
|
address will be valid. Nops are automatically inserted when necessary.
|
||
|
|
</p>
|
||
|
|
<p>If you do not want the assembler automatically making these decisions, you can control
|
||
|
|
the packaging and execution type (parallel or sequential) with the special execution
|
||
|
|
symbols described in the next section.
|
||
|
|
</p>
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
</body>
|
||
|
|
</html>
|