71 lines
3.5 KiB
HTML
71 lines
3.5 KiB
HTML
<html lang="en">
|
|
<head>
|
|
<title>s390 Syntax - Using as</title>
|
|
<meta http-equiv="Content-Type" content="text/html">
|
|
<meta name="description" content="Using as">
|
|
<meta name="generator" content="makeinfo 4.13">
|
|
<link title="Top" rel="start" href="index.html#Top">
|
|
<link rel="up" href="S_002f390_002dDependent.html#S_002f390_002dDependent" title="S/390-Dependent">
|
|
<link rel="prev" href="s390-Characters.html#s390-Characters" title="s390 Characters">
|
|
<link rel="next" href="s390-Directives.html#s390-Directives" title="s390 Directives">
|
|
<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
|
|
<!--
|
|
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''.
|
|
|
|
-->
|
|
<meta http-equiv="Content-Style-Type" content="text/css">
|
|
<style type="text/css"><!--
|
|
pre.display { font-family:inherit }
|
|
pre.format { font-family:inherit }
|
|
pre.smalldisplay { font-family:inherit; font-size:smaller }
|
|
pre.smallformat { font-family:inherit; font-size:smaller }
|
|
pre.smallexample { font-size:smaller }
|
|
pre.smalllisp { font-size:smaller }
|
|
span.sc { font-variant:small-caps }
|
|
span.roman { font-family:serif; font-weight:normal; }
|
|
span.sansserif { font-family:sans-serif; font-weight:normal; }
|
|
--></style>
|
|
</head>
|
|
<body>
|
|
<div class="node">
|
|
<a name="s390-Syntax"></a>
|
|
<p>
|
|
Next: <a rel="next" accesskey="n" href="s390-Directives.html#s390-Directives">s390 Directives</a>,
|
|
Previous: <a rel="previous" accesskey="p" href="s390-Characters.html#s390-Characters">s390 Characters</a>,
|
|
Up: <a rel="up" accesskey="u" href="S_002f390_002dDependent.html#S_002f390_002dDependent">S/390-Dependent</a>
|
|
<hr>
|
|
</div>
|
|
|
|
<h4 class="subsection">9.41.3 Instruction syntax</h4>
|
|
|
|
<p><a name="index-instruction-syntax_002c-s390-2066"></a><a name="index-s390-instruction-syntax-2067"></a>
|
|
The assembler syntax closely follows the syntax outlined in
|
|
Enterprise Systems Architecture/390 Principles of Operation (SA22-7201)
|
|
and the z/Architecture Principles of Operation (SA22-7832).
|
|
|
|
<p>Each instruction has two major parts, the instruction mnemonic
|
|
and the instruction operands. The instruction format varies.
|
|
|
|
<ul class="menu">
|
|
<li><a accesskey="1" href="s390-Register.html#s390-Register">s390 Register</a>: Register Naming
|
|
<li><a accesskey="2" href="s390-Mnemonics.html#s390-Mnemonics">s390 Mnemonics</a>: Instruction Mnemonics
|
|
<li><a accesskey="3" href="s390-Operands.html#s390-Operands">s390 Operands</a>: Instruction Operands
|
|
<li><a accesskey="4" href="s390-Formats.html#s390-Formats">s390 Formats</a>: Instruction Formats
|
|
<li><a accesskey="5" href="s390-Aliases.html#s390-Aliases">s390 Aliases</a>: Instruction Aliases
|
|
<li><a accesskey="6" href="s390-Operand-Modifier.html#s390-Operand-Modifier">s390 Operand Modifier</a>: Instruction Operand Modifier
|
|
<li><a accesskey="7" href="s390-Instruction-Marker.html#s390-Instruction-Marker">s390 Instruction Marker</a>: Instruction Marker
|
|
<li><a accesskey="8" href="s390-Literal-Pool-Entries.html#s390-Literal-Pool-Entries">s390 Literal Pool Entries</a>: Literal Pool Entries
|
|
</ul>
|
|
|
|
</body></html>
|
|
|