📄 machine-dependencies.html
字号:
<html lang="en">
<head>
<title>Using as</title>
<meta http-equiv="Content-Type" content="text/html">
<meta name="description" content="Using as">
<meta name="generator" content="makeinfo 4.3">
<link href="http://www.gnu.org/software/texinfo/" rel="generator-home">
</head>
<body>
<div class="node">
<p>
Node:<a name="Machine%20Dependencies">Machine Dependencies</a>,
Next:<a rel="next" accesskey="n" href="Reporting-Bugs.html#Reporting%20Bugs">Reporting Bugs</a>,
Previous:<a rel="previous" accesskey="p" href="Pseudo-Ops.html#Pseudo%20Ops">Pseudo Ops</a>,
Up:<a rel="up" accesskey="u" href="index.html#Top">Top</a>
<hr><br>
</div>
<h2 class="chapter">Machine Dependent Features</h2>
<p>The machine instruction sets are (almost by definition) different on
each machine where <code>as</code> runs. Floating point representations
vary as well, and <code>as</code> often supports a few additional
directives or command-line options for compatibility with other
assemblers on a particular platform. Finally, some versions of
<code>as</code> support special pseudo-instructions for branch
optimization.
<p>This chapter discusses most of these differences, though it does not
include details on any machine's instruction set. For details on that
subject, see the hardware manufacturer's manual.
<ul class="menu">
<li><a accesskey="1" href="AMD29K-Dependent.html#AMD29K-Dependent">AMD29K-Dependent</a>: AMD 29K Dependent Features
<p>
</p><li><a accesskey="2" href="Alpha-Dependent.html#Alpha-Dependent">Alpha-Dependent</a>: Alpha Dependent Features
<p>
</p><li><a accesskey="3" href="ARC-Dependent.html#ARC-Dependent">ARC-Dependent</a>: ARC Dependent Features
<p>
</p><li><a accesskey="4" href="ARM-Dependent.html#ARM-Dependent">ARM-Dependent</a>: ARM Dependent Features
<p>
</p><li><a accesskey="5" href="CRIS-Dependent.html#CRIS-Dependent">CRIS-Dependent</a>: CRIS Dependent Features
<p>
</p><li><a accesskey="6" href="D10V-Dependent.html#D10V-Dependent">D10V-Dependent</a>: D10V Dependent Features
<p>
</p><li><a accesskey="7" href="D30V-Dependent.html#D30V-Dependent">D30V-Dependent</a>: D30V Dependent Features
<p>
</p><li><a accesskey="8" href="H8-300-Dependent.html#H8%2f300-Dependent">H8/300-Dependent</a>: Hitachi H8/300 Dependent Features
<p>
</p><li><a accesskey="9" href="H8-500-Dependent.html#H8%2f500-Dependent">H8/500-Dependent</a>: Hitachi H8/500 Dependent Features
<p>
</p><li><a href="HPPA-Dependent.html#HPPA-Dependent">HPPA-Dependent</a>: HPPA Dependent Features
<p>
</p><li><a href="ESA-390-Dependent.html#ESA%2f390-Dependent">ESA/390-Dependent</a>: IBM ESA/390 Dependent Features
<p>
</p><li><a href="i386-Dependent.html#i386-Dependent">i386-Dependent</a>: Intel 80386 and AMD x86-64 Dependent Features
<p>
</p><li><a href="i860-Dependent.html#i860-Dependent">i860-Dependent</a>: Intel 80860 Dependent Features
<p>
</p><li><a href="i960-Dependent.html#i960-Dependent">i960-Dependent</a>: Intel 80960 Dependent Features
<p>
</p><li><a href="M32R-Dependent.html#M32R-Dependent">M32R-Dependent</a>: M32R Dependent Features
<p>
</p><li><a href="M68K-Dependent.html#M68K-Dependent">M68K-Dependent</a>: M680x0 Dependent Features
<p>
</p><li><a href="M68HC11-Dependent.html#M68HC11-Dependent">M68HC11-Dependent</a>: M68HC11 and 68HC12 Dependent Features
<p>
</p><li><a href="M88K-Dependent.html#M88K-Dependent">M88K-Dependent</a>: M880x0 Dependent Features
<p>
</p><li><a href="MIPS-Dependent.html#MIPS-Dependent">MIPS-Dependent</a>: MIPS Dependent Features
<p>
</p><li><a href="MMIX-Dependent.html#MMIX-Dependent">MMIX-Dependent</a>: MMIX Dependent Features
<p>
</p><li><a href="SH-Dependent.html#SH-Dependent">SH-Dependent</a>: Hitachi SH Dependent Features
<li><a href="SH64-Dependent.html#SH64-Dependent">SH64-Dependent</a>: Hitachi SH64 Dependent Features
<p>
</p><li><a href="PDP-11-Dependent.html#PDP-11-Dependent">PDP-11-Dependent</a>: PDP-11 Dependent Features
<p>
</p><li><a href="PJ-Dependent.html#PJ-Dependent">PJ-Dependent</a>: picoJava Dependent Features
<p>
</p><li><a href="PPC-Dependent.html#PPC-Dependent">PPC-Dependent</a>: PowerPC Dependent Features
<p>
</p><li><a href="Sparc-Dependent.html#Sparc-Dependent">Sparc-Dependent</a>: SPARC Dependent Features
<p>
</p><li><a href="V850-Dependent.html#V850-Dependent">V850-Dependent</a>: V850 Dependent Features
<p>
</p><li><a href="Z8000-Dependent.html#Z8000-Dependent">Z8000-Dependent</a>: Z8000 Dependent Features
<p>
</p><li><a href="Vax-Dependent.html#Vax-Dependent">Vax-Dependent</a>: VAX Dependent Features
</ul>
</body></html>
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -