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16<title>Using as: MicroBlaze Directives</title>
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63<a name="MicroBlaze-Directives"></a>
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65<p>
66Next: <a href="MicroBlaze-Syntax.html#MicroBlaze-Syntax" accesskey="n" rel="next">MicroBlaze Syntax</a>, Up: <a href="MicroBlaze_002dDependent.html#MicroBlaze_002dDependent" accesskey="u" rel="up">MicroBlaze-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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69<a name="Directives-1"></a>
70<h4 class="subsection">9.26.1 Directives</h4>
71<a name="index-MicroBlaze-directives"></a>
72<p>A number of assembler directives are available for MicroBlaze.
73</p>
74<dl compact="compact">
75<dt><code>.data8 <var>expression</var>,...</code></dt>
76<dd><p>This directive is an alias for <code>.byte</code>. Each expression is assembled
77into an eight-bit value.
78</p>
79</dd>
80<dt><code>.data16 <var>expression</var>,...</code></dt>
81<dd><p>This directive is an alias for <code>.hword</code>. Each expression is assembled
82into an 16-bit value.
83</p>
84</dd>
85<dt><code>.data32 <var>expression</var>,...</code></dt>
86<dd><p>This directive is an alias for <code>.word</code>. Each expression is assembled
87into an 32-bit value.
88</p>
89</dd>
90<dt><code>.ent <var>name</var>[,<var>label</var>]</code></dt>
91<dd><p>This directive is an alias for <code>.func</code> denoting the start of function
92<var>name</var> at (optional) <var>label</var>.
93</p>
94</dd>
95<dt><code>.end <var>name</var>[,<var>label</var>]</code></dt>
96<dd><p>This directive is an alias for <code>.endfunc</code> denoting the end of function
97<var>name</var>.
98</p>
99</dd>
100<dt><code>.gpword <var>label</var>,...</code></dt>
101<dd><p>This directive is an alias for <code>.rva</code>.  The resolved address of <var>label</var>
102is stored in the data section.
103</p>
104</dd>
105<dt><code>.weakext <var>label</var></code></dt>
106<dd><p>Declare that <var>label</var> is a weak external symbol.
107</p>
108</dd>
109<dt><code>.rodata</code></dt>
110<dd><p>Switch to .rodata section. Equivalent to <code>.section .rodata</code>
111</p>
112</dd>
113<dt><code>.sdata2</code></dt>
114<dd><p>Switch to .sdata2 section. Equivalent to <code>.section .sdata2</code>
115</p>
116</dd>
117<dt><code>.sdata</code></dt>
118<dd><p>Switch to .sdata section. Equivalent to <code>.section .sdata</code>
119</p>
120</dd>
121<dt><code>.bss</code></dt>
122<dd><p>Switch to .bss section. Equivalent to <code>.section .bss</code>
123</p>
124</dd>
125<dt><code>.sbss</code></dt>
126<dd><p>Switch to .sbss section. Equivalent to <code>.section .sbss</code>
127</p></dd>
128</dl>
129
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