📄 cris-expand.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="CRIS-Expand">CRIS-Expand</a>,
Next:<a rel="next" accesskey="n" href="CRIS-Syntax.html#CRIS-Syntax">CRIS-Syntax</a>,
Previous:<a rel="previous" accesskey="p" href="CRIS-Opts.html#CRIS-Opts">CRIS-Opts</a>,
Up:<a rel="up" accesskey="u" href="CRIS-Dependent.html#CRIS-Dependent">CRIS-Dependent</a>
<hr><br>
</div>
<h4 class="section">Instruction expansion</h4>
<p><code>as</code> will silently choose an instruction that fits
the operand size for <code>[register+constant]</code> operands. For
example, the offset <code>127</code> in <code>move.d [r3+127],r4</code> fits
in an instruction using a signed-byte offset. Similarly,
<code>move.d [r2+32767],r1</code> will generate an instruction using a
16-bit offset. For symbolic expressions and constants that do
not fit in 16 bits including the sign bit, a 32-bit offset is
generated.
<p>For branches, <code>as</code> will expand from a 16-bit branch
instruction into a sequence of instructions that can reach a
full 32-bit address. Since this does not correspond to a single
instruction, such expansions can optionally be warned about.
See <a href="CRIS-Opts.html#CRIS-Opts">CRIS-Opts</a>.
</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 + -