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63<a name="Nios-II-Directives"></a>
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65<p>
66Next: <a href="Nios-II-Opcodes.html#Nios-II-Opcodes" accesskey="n" rel="next">Nios II Opcodes</a>, Previous: <a href="Nios-II-Relocations.html#Nios-II-Relocations" accesskey="p" rel="previous">Nios II Relocations</a>, Up: <a href="NiosII_002dDependent.html#NiosII_002dDependent" accesskey="u" rel="up">NiosII-Dependent</a> &nbsp; [<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>
67</div>
68<hr>
69<a name="Nios-II-Machine-Directives"></a>
70<h4 class="subsection">9.31.4 Nios II Machine Directives</h4>
71
72<a name="index-machine-directives_002c-Nios-II"></a>
73<a name="index-Nios-II-machine-directives"></a>
74
75<dl compact="compact">
76<dd>
77<a name="index-align-directive_002c-Nios-II"></a>
78</dd>
79<dt><code>.align <var>expression</var> [, <var>expression</var>]</code></dt>
80<dd><p>This is the generic <code>.align</code> directive, however
81this aligns to a power of two.
82</p>
83<a name="index-half-directive_002c-Nios-II"></a>
84</dd>
85<dt><code>.half <var>expression</var></code></dt>
86<dd><p>Create an aligned constant 2 bytes in size.
87</p>
88<a name="index-word-directive_002c-Nios-II"></a>
89</dd>
90<dt><code>.word <var>expression</var></code></dt>
91<dd><p>Create an aligned constant 4 bytes in size.
92</p>
93<a name="index-dword-directive_002c-Nios-II"></a>
94</dd>
95<dt><code>.dword <var>expression</var></code></dt>
96<dd><p>Create an aligned constant 8 bytes in size.
97</p>
98<a name="index-2byte-directive_002c-Nios-II"></a>
99</dd>
100<dt><code>.2byte <var>expression</var></code></dt>
101<dd><p>Create an unaligned constant 2 bytes in size.
102</p>
103<a name="index-4byte-directive_002c-Nios-II"></a>
104</dd>
105<dt><code>.4byte <var>expression</var></code></dt>
106<dd><p>Create an unaligned constant 4 bytes in size.
107</p>
108<a name="index-8byte-directive_002c-Nios-II"></a>
109</dd>
110<dt><code>.8byte <var>expression</var></code></dt>
111<dd><p>Create an unaligned constant 8 bytes in size.
112</p>
113<a name="index-16byte-directive_002c-Nios-II"></a>
114</dd>
115<dt><code>.16byte <var>expression</var></code></dt>
116<dd><p>Create an unaligned constant 16 bytes in size.
117</p>
118<a name="index-set-noat-directive_002c-Nios-II"></a>
119</dd>
120<dt><code>.set noat</code></dt>
121<dd><p>Allows assembly code to use <code>at</code> register without
122warning.  Macro or relaxation expansions
123generate warnings.
124</p>
125<a name="index-set-at-directive_002c-Nios-II"></a>
126</dd>
127<dt><code>.set at</code></dt>
128<dd><p>Assembly code using <code>at</code> register generates
129warnings, and macro expansion and relaxation are
130enabled.
131</p>
132<a name="index-set-nobreak-directive_002c-Nios-II"></a>
133</dd>
134<dt><code>.set nobreak</code></dt>
135<dd><p>Allows assembly code to use <code>ba</code> and <code>bt</code>
136registers without warning.
137</p>
138<a name="index-set-break-directive_002c-Nios-II"></a>
139</dd>
140<dt><code>.set break</code></dt>
141<dd><p>Turns warnings back on for using <code>ba</code> and <code>bt</code>
142registers.
143</p>
144<a name="index-set-norelax-directive_002c-Nios-II"></a>
145</dd>
146<dt><code>.set norelax</code></dt>
147<dd><p>Do not replace any branches or calls.
148</p>
149<a name="index-set-relaxsection-directive_002c-Nios-II"></a>
150</dd>
151<dt><code>.set relaxsection</code></dt>
152<dd><p>Replace identified out-of-range branches with
153<code>jmp</code> sequences (default).
154</p>
155<a name="index-set-relaxall-directive_002c-Nios-II"></a>
156</dd>
157<dt><code>.set relaxsection</code></dt>
158<dd><p>Replace all branch and call instructions with
159<code>jmp</code> and <code>callr</code> sequences.
160</p>
161<a name="index-set-directive_002c-Nios-II"></a>
162</dd>
163<dt><code>.set &hellip;</code></dt>
164<dd><p>All other <code>.set</code> are the normal use.
165</p>
166</dd>
167</dl>
168
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171<p>
172Next: <a href="Nios-II-Opcodes.html#Nios-II-Opcodes" accesskey="n" rel="next">Nios II Opcodes</a>, Previous: <a href="Nios-II-Relocations.html#Nios-II-Relocations" accesskey="p" rel="previous">Nios II Relocations</a>, Up: <a href="NiosII_002dDependent.html#NiosII_002dDependent" accesskey="u" rel="up">NiosII-Dependent</a> &nbsp; [<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>
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