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| <div class="titlepage"><div><div><h3 class="title"> |
| <a name="context.econtext.rationale"></a><a class="link" href="rationale.html" title="Rationale">Rationale</a> |
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| <div class="toc"><dl> |
| <dt><span class="section"><a href="rationale/other_apis_.html">Other APIs |
| </a></span></dt> |
| <dt><span class="section"><a href="rationale/x86_and_floating_point_env.html">x86 |
| and floating-point env</a></span></dt> |
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| <h5> |
| <a name="context.econtext.rationale.h0"></a> |
| <span><a name="context.econtext.rationale.no_inline_assembler"></a></span><a class="link" href="rationale.html#context.econtext.rationale.no_inline_assembler">No |
| inline-assembler</a> |
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| <p> |
| Some newer compiler (for instance MSVC 10 for x86_64 and itanium) do not |
| support inline assembler. <sup>[<a name="context.econtext.rationale.f0" href="#ftn.context.econtext.rationale.f0" class="footnote">1</a>]</sup>. Inlined assembler generates code bloating which his not welcome |
| on embedded systems. |
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| <h5> |
| <a name="context.econtext.rationale.h1"></a> |
| <span><a name="context.econtext.rationale.fcontext_t"></a></span><a class="link" href="rationale.html#context.econtext.rationale.fcontext_t">fcontext_t</a> |
| </h5> |
| <p> |
| <span class="bold"><strong>Boost.Context</strong></span> provides the low level API |
| fcontext_t which is implemented in assembler to provide context swapping |
| operations. fcontext_t is the part to port to new platforms. |
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| <th align="left">Note</th> |
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| Context switches do not preserve the signal mask on UNIX systems. |
| </p></td></tr> |
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| <p> |
| <span class="emphasis"><em>fcontext_t</em></span> is an opaque pointer. |
| </p> |
| <div class="footnotes"> |
| <br><hr width="100" align="left"> |
| <div class="footnote"><p><sup>[<a name="ftn.context.econtext.rationale.f0" href="#context.econtext.rationale.f0" class="para">1</a>] </sup> |
| <a href="http://msdn.microsoft.com/en-us/library/4ks26t93.aspx" target="_top">MSDN |
| article 'Inline Assembler'</a> |
| </p></div> |
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| <td align="left"></td> |
| <td align="right"><div class="copyright-footer">Copyright © 2014 Oliver Kowalke<p> |
| Distributed under the Boost Software License, Version 1.0. (See accompanying |
| file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>) |
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