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| Next: <a href="Symbolic-Constants.html#Symbolic-Constants" accesskey="n" rel="next">Symbolic Constants</a>, Up: <a href="Expressions.html#Expressions" accesskey="u" rel="up">Expressions</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="LD-Index.html#LD-Index" title="Index" rel="index">Index</a>]</p> |
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| <a name="Constants-1"></a> |
| <h4 class="subsection">3.10.1 Constants</h4> |
| <a name="index-integer-notation"></a> |
| <a name="index-constants-in-linker-scripts"></a> |
| <p>All constants are integers. |
| </p> |
| <p>As in C, the linker considers an integer beginning with ‘<samp>0</samp>’ to be |
| octal, and an integer beginning with ‘<samp>0x</samp>’ or ‘<samp>0X</samp>’ to be |
| hexadecimal. Alternatively the linker accepts suffixes of ‘<samp>h</samp>’ or |
| ‘<samp>H</samp>’ for hexadecimal, ‘<samp>o</samp>’ or ‘<samp>O</samp>’ for octal, ‘<samp>b</samp>’ or |
| ‘<samp>B</samp>’ for binary and ‘<samp>d</samp>’ or ‘<samp>D</samp>’ for decimal. Any integer |
| value without a prefix or a suffix is considered to be decimal. |
| </p> |
| <a name="index-scaled-integers"></a> |
| <a name="index-K-and-M-integer-suffixes"></a> |
| <a name="index-M-and-K-integer-suffixes"></a> |
| <a name="index-suffixes-for-integers"></a> |
| <a name="index-integer-suffixes"></a> |
| <p>In addition, you can use the suffixes <code>K</code> and <code>M</code> to scale a |
| constant by |
| <code>1024</code> or <code>1024*1024</code> |
| respectively. For example, the following |
| all refer to the same quantity: |
| </p> |
| <div class="smallexample"> |
| <pre class="smallexample">_fourk_1 = 4K; |
| _fourk_2 = 4096; |
| _fourk_3 = 0x1000; |
| _fourk_4 = 10000o; |
| </pre></div> |
| |
| <p>Note - the <code>K</code> and <code>M</code> suffixes cannot be used in |
| conjunction with the base suffixes mentioned above. |
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