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Graham Nelson 35978b0026 Catching up on the woven form
2020-02-27 11:18:25 +00:00

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<ul class="crumbs"><li><a href="../webs.html">&#9733;</a></li><li><a href="index.html">arch</a></li><li><a href="index.html#2">Chapter 2: Architectures</a></li><li><b>Architectures</b></li></ul><p class="purpose">To deal with multiple inter architectures.</p>
<ul class="toc"><li><a href="#SP1">&#167;1. Architectures</a></li></ul><hr class="tocbar">
<p class="inwebparagraph"><a id="SP1"></a><b>&#167;1. Architectures. </b></p>
<pre class="display">
<span class="reserved">typedef</span><span class="plain"> </span><span class="reserved">struct</span><span class="plain"> </span><span class="reserved">inter_architecture</span><span class="plain"> {</span>
<span class="reserved">struct</span><span class="plain"> </span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">shorthand</span><span class="plain">; </span> <span class="comment">such as <code class="display"><span class="extract">32d</span></code></span>
<span class="reserved">int</span><span class="plain"> </span><span class="identifier">sixteen_bit</span><span class="plain">;</span>
<span class="reserved">int</span><span class="plain"> </span><span class="identifier">debug_enabled</span><span class="plain">;</span>
<span class="identifier">MEMORY_MANAGEMENT</span>
<span class="plain">} </span><span class="reserved">inter_architecture</span><span class="plain">;</span>
<span class="reserved">inter_architecture</span><span class="plain"> *</span><span class="functiontext">Architectures::new</span><span class="plain">(</span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">code</span><span class="plain">, </span><span class="reserved">int</span><span class="plain"> </span><span class="identifier">s</span><span class="plain">, </span><span class="reserved">int</span><span class="plain"> </span><span class="identifier">d</span><span class="plain">) {</span>
<span class="reserved">inter_architecture</span><span class="plain"> *</span><span class="identifier">A</span><span class="plain"> = </span><span class="identifier">CREATE</span><span class="plain">(</span><span class="reserved">inter_architecture</span><span class="plain">);</span>
<span class="identifier">A</span><span class="plain">-</span><span class="element">&gt;shorthand</span><span class="plain"> = </span><span class="identifier">Str::duplicate</span><span class="plain">(</span><span class="identifier">code</span><span class="plain">);</span>
<span class="identifier">A</span><span class="plain">-</span><span class="element">&gt;sixteen_bit</span><span class="plain"> = </span><span class="identifier">s</span><span class="plain">;</span>
<span class="identifier">A</span><span class="plain">-</span><span class="element">&gt;debug_enabled</span><span class="plain"> = </span><span class="identifier">d</span><span class="plain">;</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">A</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">Architectures::create</span><span class="plain">(</span><span class="reserved">void</span><span class="plain">) {</span>
<span class="functiontext">Architectures::new</span><span class="plain">(</span><span class="identifier">I</span><span class="string">"16"</span><span class="plain">, </span><span class="identifier">TRUE</span><span class="plain">, </span><span class="identifier">FALSE</span><span class="plain">);</span>
<span class="functiontext">Architectures::new</span><span class="plain">(</span><span class="identifier">I</span><span class="string">"16d"</span><span class="plain">, </span><span class="identifier">TRUE</span><span class="plain">, </span><span class="identifier">TRUE</span><span class="plain">);</span>
<span class="functiontext">Architectures::new</span><span class="plain">(</span><span class="identifier">I</span><span class="string">"32"</span><span class="plain">, </span><span class="identifier">FALSE</span><span class="plain">, </span><span class="identifier">FALSE</span><span class="plain">);</span>
<span class="functiontext">Architectures::new</span><span class="plain">(</span><span class="identifier">I</span><span class="string">"32d"</span><span class="plain">, </span><span class="identifier">FALSE</span><span class="plain">, </span><span class="identifier">TRUE</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="identifier">filename</span><span class="plain"> *</span><span class="functiontext">Architectures::canonical_binary</span><span class="plain">(</span><span class="identifier">pathname</span><span class="plain"> *</span><span class="identifier">P</span><span class="plain">, </span><span class="reserved">inter_architecture</span><span class="plain"> *</span><span class="identifier">A</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">A</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">) </span><span class="identifier">internal_error</span><span class="plain">(</span><span class="string">"no arch"</span><span class="plain">);</span>
<span class="identifier">TEMPORARY_TEXT</span><span class="plain">(</span><span class="identifier">leafname</span><span class="plain">);</span>
<span class="identifier">WRITE_TO</span><span class="plain">(</span><span class="identifier">leafname</span><span class="plain">, </span><span class="string">"arch-%S.interb"</span><span class="plain">, </span><span class="identifier">A</span><span class="plain">-</span><span class="element">&gt;shorthand</span><span class="plain">);</span>
<span class="identifier">filename</span><span class="plain"> *</span><span class="identifier">F</span><span class="plain"> = </span><span class="identifier">Filenames::in_folder</span><span class="plain">(</span><span class="identifier">P</span><span class="plain">, </span><span class="identifier">leafname</span><span class="plain">);</span>
<span class="identifier">DISCARD_TEXT</span><span class="plain">(</span><span class="identifier">leafname</span><span class="plain">);</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">F</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="identifier">filename</span><span class="plain"> *</span><span class="functiontext">Architectures::canonical_textual</span><span class="plain">(</span><span class="identifier">pathname</span><span class="plain"> *</span><span class="identifier">P</span><span class="plain">, </span><span class="reserved">inter_architecture</span><span class="plain"> *</span><span class="identifier">A</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">A</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">) </span><span class="identifier">internal_error</span><span class="plain">(</span><span class="string">"no arch"</span><span class="plain">);</span>
<span class="identifier">TEMPORARY_TEXT</span><span class="plain">(</span><span class="identifier">leafname</span><span class="plain">);</span>
<span class="identifier">WRITE_TO</span><span class="plain">(</span><span class="identifier">leafname</span><span class="plain">, </span><span class="string">"arch-%S.intert"</span><span class="plain">, </span><span class="identifier">A</span><span class="plain">-</span><span class="element">&gt;shorthand</span><span class="plain">);</span>
<span class="identifier">filename</span><span class="plain"> *</span><span class="identifier">F</span><span class="plain"> = </span><span class="identifier">Filenames::in_folder</span><span class="plain">(</span><span class="identifier">P</span><span class="plain">, </span><span class="identifier">leafname</span><span class="plain">);</span>
<span class="identifier">DISCARD_TEXT</span><span class="plain">(</span><span class="identifier">leafname</span><span class="plain">);</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">F</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="identifier">text_stream</span><span class="plain"> *</span><span class="functiontext">Architectures::to_codename</span><span class="plain">(</span><span class="reserved">inter_architecture</span><span class="plain"> *</span><span class="identifier">A</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">A</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">) </span><span class="reserved">return</span><span class="plain"> </span><span class="identifier">NULL</span><span class="plain">;</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">A</span><span class="plain">-</span><span class="element">&gt;shorthand</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">inter_architecture</span><span class="plain"> *</span><span class="functiontext">Architectures::from_codename</span><span class="plain">(</span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">name</span><span class="plain">) {</span>
<span class="reserved">inter_architecture</span><span class="plain"> *</span><span class="identifier">A</span><span class="plain">;</span>
<span class="identifier">LOOP_OVER</span><span class="plain">(</span><span class="identifier">A</span><span class="plain">, </span><span class="reserved">inter_architecture</span><span class="plain">)</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">Str::eq_insensitive</span><span class="plain">(</span><span class="identifier">A</span><span class="plain">-</span><span class="element">&gt;shorthand</span><span class="plain">, </span><span class="identifier">name</span><span class="plain">))</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">A</span><span class="plain">;</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">NULL</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">int</span><span class="plain"> </span><span class="functiontext">Architectures::is_16_bit</span><span class="plain">(</span><span class="reserved">inter_architecture</span><span class="plain"> *</span><span class="identifier">A</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">A</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">) </span><span class="identifier">internal_error</span><span class="plain">(</span><span class="string">"no arch"</span><span class="plain">);</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">A</span><span class="plain">-</span><span class="element">&gt;sixteen_bit</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">int</span><span class="plain"> </span><span class="functiontext">Architectures::debug_enabled</span><span class="plain">(</span><span class="reserved">inter_architecture</span><span class="plain"> *</span><span class="identifier">A</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">A</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">) </span><span class="identifier">internal_error</span><span class="plain">(</span><span class="string">"no arch"</span><span class="plain">);</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">A</span><span class="plain">-</span><span class="element">&gt;debug_enabled</span><span class="plain">;</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="endnote">The function Architectures::new appears nowhere else.</p>
<p class="endnote">The function Architectures::create is used in 1/am (<a href="1-am.html#SP3">&#167;3</a>).</p>
<p class="endnote">The function Architectures::canonical_binary appears nowhere else.</p>
<p class="endnote">The function Architectures::canonical_textual appears nowhere else.</p>
<p class="endnote">The function Architectures::to_codename appears nowhere else.</p>
<p class="endnote">The function Architectures::from_codename is used in 2/tvm (<a href="2-tvm.html#SP1">&#167;1</a>).</p>
<p class="endnote">The function Architectures::is_16_bit is used in 2/tvm (<a href="2-tvm.html#SP1">&#167;1</a>).</p>
<p class="endnote">The function Architectures::debug_enabled is used in 2/tvm (<a href="2-tvm.html#SP1">&#167;1</a>).</p>
<p class="endnote">The structure inter_architecture is private to this section.</p>
<hr class="tocbar">
<ul class="toc"><li><a href="2-vn.html">Back to 'Version Numbers'</a></li><li><a href="2-tvm.html">Continue with 'Target Virtual Machines'</a></li></ul><hr class="tocbar">
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