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<!--Weave of 'Fundamental Constants' generated by Inweb-->
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<div class="breadcrumbs">
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<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../compiler.html">Inform7</a></li><li><a href="index.html">runtime</a></li><li><a href="index.html#3">Chapter 3: Basics</a></li><li><b>Fundamental Constants</b></li></ul></div>
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<p class="purpose">Inter constants for, say, extremal number values, which depend on the target we are compiling to, and are generally low-level in nature.</p>
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<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>§1. </b>Fundamental constants are emitted about our choice of virtual machine.
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</p>
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<p class="commentary">The old I6 library used to confuse Z-vs-G with 16-vs-32-bit, but we try
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to separate these distinctions here, even though at present the Z-machine
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is our only 16-bit target and Glulx our only 32-bit one. The <span class="extract"><span class="extract-syntax">WORDSIZE</span></span>
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constant is the word size in bytes, so is the multiplier between <span class="extract"><span class="extract-syntax">-></span></span> and
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<span class="extract"><span class="extract-syntax">--></span></span> offsets in I6 pointer syntax.
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</p>
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<ul class="items"><li>(1) <span class="extract"><span class="extract-syntax">NULL</span></span> is used, as in C, to represent a null value or pointer. In C,
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this is conventionally 0, but here it is the maximum unsigned value which
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can be stored, pointing to the topmost byte in the directly addressable
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memory map; this means it is also \(-1\) when regarded as a signed
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twos-complement integer, but we write it as an unsigned hexadecimal
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address for clarity's sake.
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</li><li>(2) <span class="extract"><span class="extract-syntax">WORD_HIGHBIT</span></span> is the most significant bit in the VM's data word.
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</li><li>(3) <span class="extract"><span class="extract-syntax">IMPROBABLE_VALUE</span></span> is one which is unlikely but still possible
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to be a genuine I7 value. The efficiency of some algorithms depends on
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how well chosen this is: they would ran badly if we chose 1, for instance.
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</li><li>(4) <span class="extract"><span class="extract-syntax">MAX_POSITIVE_NUMBER</span></span> is the largest representable positive (signed)
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integer, in twos-complement form.
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</li><li>(5) <span class="extract"><span class="extract-syntax">REPARSE_CODE</span></span> is a magic value used in the I6 library's parser to
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signal that some code which ought to have been parsing a command has in
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fact rewritten it, so that the whole command must be re-parsed afresh.
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(Returning this value is like throwing an exception in a language like
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Java, though we don't implement it that way.) A comment in the 6/11 library
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reads: "The parser rather gunkily adds addresses to <span class="extract"><span class="extract-syntax">REPARSE_CODE</span></span> for
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some purposes. And expects the result to be greater than <span class="extract"><span class="extract-syntax">REPARSE_CODE</span></span>
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(signed comparison). So Glulx Inform is limited to a single gigabyte of
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storage, for the moment." Guilty as charged, but the gigabyte story file
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is a remote prospect for now. Anyway, it's this comparison issue which
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means we need a different value for each possible word size.
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</li></ul>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="function-syntax">FundamentalConstants::emit_one</span><span class="plain-syntax">(</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">id</span><span class="plain-syntax">, </span><span class="identifier-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">val</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">iname</span><span class="plain-syntax"> = </span><a href="2-hrr.html#SP6" class="function-link"><span class="function-syntax">Hierarchy::find</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">id</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="2-hrr.html#SP6" class="function-link"><span class="function-syntax">Hierarchy::make_available</span></a><span class="plain-syntax">(</span><a href="2-emt.html#SP1" class="function-link"><span class="function-syntax">Emit::tree</span></a><span class="plain-syntax">(), </span><span class="identifier-syntax">iname</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="2-emt.html#SP8" class="function-link"><span class="function-syntax">Emit::numeric_constant</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">iname</span><span class="plain-syntax">, </span><span class="identifier-syntax">val</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">iname</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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<span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="function-syntax">FundamentalConstants::emit_signed</span><span class="plain-syntax">(</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">id</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">val</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">iname</span><span class="plain-syntax"> = </span><a href="2-hrr.html#SP6" class="function-link"><span class="function-syntax">Hierarchy::find</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">id</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="2-hrr.html#SP6" class="function-link"><span class="function-syntax">Hierarchy::make_available</span></a><span class="plain-syntax">(</span><a href="2-emt.html#SP1" class="function-link"><span class="function-syntax">Emit::tree</span></a><span class="plain-syntax">(), </span><span class="identifier-syntax">iname</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="2-emt.html#SP8" class="function-link"><span class="function-syntax">Emit::named_numeric_constant_signed</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">iname</span><span class="plain-syntax">, </span><span class="identifier-syntax">val</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">iname</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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<span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="function-syntax">FundamentalConstants::emit_hex</span><span class="plain-syntax">(</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">id</span><span class="plain-syntax">, </span><span class="identifier-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">val</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">iname</span><span class="plain-syntax"> = </span><a href="2-hrr.html#SP6" class="function-link"><span class="function-syntax">Hierarchy::find</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">id</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="2-hrr.html#SP6" class="function-link"><span class="function-syntax">Hierarchy::make_available</span></a><span class="plain-syntax">(</span><a href="2-emt.html#SP1" class="function-link"><span class="function-syntax">Emit::tree</span></a><span class="plain-syntax">(), </span><span class="identifier-syntax">iname</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="2-emt.html#SP8" class="function-link"><span class="function-syntax">Emit::named_numeric_constant_hex</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">iname</span><span class="plain-syntax">, </span><span class="identifier-syntax">val</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">iname</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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<span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="function-syntax">FundamentalConstants::emit_unchecked_hex</span><span class="plain-syntax">(</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">id</span><span class="plain-syntax">, </span><span class="identifier-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">val</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">iname</span><span class="plain-syntax"> = </span><a href="2-hrr.html#SP6" class="function-link"><span class="function-syntax">Hierarchy::find</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">id</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="2-hrr.html#SP6" class="function-link"><span class="function-syntax">Hierarchy::make_available</span></a><span class="plain-syntax">(</span><a href="2-emt.html#SP1" class="function-link"><span class="function-syntax">Emit::tree</span></a><span class="plain-syntax">(), </span><span class="identifier-syntax">iname</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="2-emt.html#SP8" class="function-link"><span class="function-syntax">Emit::named_unchecked_constant_hex</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">iname</span><span class="plain-syntax">, </span><span class="identifier-syntax">val</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">iname</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">FundamentalConstants::emit</span><span class="plain-syntax">(</span><span class="reserved-syntax">void</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">target_vm</span><span class="plain-syntax"> *</span><span class="identifier-syntax">VM</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Task::vm</span><span class="plain-syntax">();</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">VM</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"target VM not set yet"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">TargetVMs::debug_enabled</span><span class="plain-syntax">(</span><span class="identifier-syntax">VM</span><span class="plain-syntax">))</span>
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<span class="plain-syntax"> </span><a href="3-fc.html#SP1" class="function-link"><span class="function-syntax">FundamentalConstants::emit_one</span></a><span class="plain-syntax">(</span><span class="constant-syntax">DEBUG_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Str::eq</span><span class="plain-syntax">(</span><span class="identifier-syntax">VM</span><span class="plain-syntax">-></span><span class="identifier-syntax">family_name</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"Z-Machine"</span><span class="plain-syntax">)) {</span>
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<span class="plain-syntax"> </span><a href="3-fc.html#SP1" class="function-link"><span class="function-syntax">FundamentalConstants::emit_one</span></a><span class="plain-syntax">(</span><span class="constant-syntax">TARGET_ZCODE_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="3-fc.html#SP1" class="function-link"><span class="function-syntax">FundamentalConstants::emit_one</span></a><span class="plain-syntax">(</span><span class="constant-syntax">DICT_WORD_SIZE_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">6</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Str::eq</span><span class="plain-syntax">(</span><span class="identifier-syntax">VM</span><span class="plain-syntax">-></span><span class="identifier-syntax">family_name</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"Glulx"</span><span class="plain-syntax">)) {</span>
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<span class="plain-syntax"> </span><a href="3-fc.html#SP1" class="function-link"><span class="function-syntax">FundamentalConstants::emit_one</span></a><span class="plain-syntax">(</span><span class="constant-syntax">TARGET_GLULX_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="3-fc.html#SP1" class="function-link"><span class="function-syntax">FundamentalConstants::emit_one</span></a><span class="plain-syntax">(</span><span class="constant-syntax">DICT_WORD_SIZE_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">9</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="3-fc.html#SP1" class="function-link"><span class="function-syntax">FundamentalConstants::emit_one</span></a><span class="plain-syntax">(</span><span class="constant-syntax">INDIV_PROP_START_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">0</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">TargetVMs::is_16_bit</span><span class="plain-syntax">(</span><span class="identifier-syntax">VM</span><span class="plain-syntax">)) {</span>
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<span class="plain-syntax"> </span><a href="3-fc.html#SP1" class="function-link"><span class="function-syntax">FundamentalConstants::emit_one</span></a><span class="plain-syntax">(</span><span class="constant-syntax">WORDSIZE_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">2</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="3-fc.html#SP1" class="function-link"><span class="function-syntax">FundamentalConstants::emit_unchecked_hex</span></a><span class="plain-syntax">(</span><span class="constant-syntax">NULL_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">0xffff</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="3-fc.html#SP1" class="function-link"><span class="function-syntax">FundamentalConstants::emit_hex</span></a><span class="plain-syntax">(</span><span class="constant-syntax">WORD_HIGHBIT_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">0x8000</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="3-fc.html#SP1" class="function-link"><span class="function-syntax">FundamentalConstants::emit_hex</span></a><span class="plain-syntax">(</span><span class="constant-syntax">WORD_NEXTTOHIGHBIT_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">0x4000</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="3-fc.html#SP1" class="function-link"><span class="function-syntax">FundamentalConstants::emit_hex</span></a><span class="plain-syntax">(</span><span class="constant-syntax">IMPROBABLE_VALUE_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">0x7fe3</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="3-fc.html#SP1" class="function-link"><span class="function-syntax">FundamentalConstants::emit_hex</span></a><span class="plain-syntax">(</span><span class="constant-syntax">REPARSE_CODE_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">10000</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="3-fc.html#SP1" class="function-link"><span class="function-syntax">FundamentalConstants::emit_one</span></a><span class="plain-syntax">(</span><span class="constant-syntax">MAX_POSITIVE_NUMBER_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">32767</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="3-fc.html#SP1" class="function-link"><span class="function-syntax">FundamentalConstants::emit_signed</span></a><span class="plain-syntax">(</span><span class="constant-syntax">MIN_NEGATIVE_NUMBER_HL</span><span class="plain-syntax">, -32768);</span>
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<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
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<span class="plain-syntax"> </span><a href="3-fc.html#SP1" class="function-link"><span class="function-syntax">FundamentalConstants::emit_one</span></a><span class="plain-syntax">(</span><span class="constant-syntax">WORDSIZE_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">4</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="3-fc.html#SP1" class="function-link"><span class="function-syntax">FundamentalConstants::emit_unchecked_hex</span></a><span class="plain-syntax">(</span><span class="constant-syntax">NULL_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">0xffffffff</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="3-fc.html#SP1" class="function-link"><span class="function-syntax">FundamentalConstants::emit_hex</span></a><span class="plain-syntax">(</span><span class="constant-syntax">WORD_HIGHBIT_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">0x80000000</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="3-fc.html#SP1" class="function-link"><span class="function-syntax">FundamentalConstants::emit_hex</span></a><span class="plain-syntax">(</span><span class="constant-syntax">WORD_NEXTTOHIGHBIT_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">0x40000000</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="3-fc.html#SP1" class="function-link"><span class="function-syntax">FundamentalConstants::emit_hex</span></a><span class="plain-syntax">(</span><span class="constant-syntax">IMPROBABLE_VALUE_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">0xdeadce11</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="3-fc.html#SP1" class="function-link"><span class="function-syntax">FundamentalConstants::emit_hex</span></a><span class="plain-syntax">(</span><span class="constant-syntax">REPARSE_CODE_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">0x40000000</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="3-fc.html#SP1" class="function-link"><span class="function-syntax">FundamentalConstants::emit_one</span></a><span class="plain-syntax">(</span><span class="constant-syntax">MAX_POSITIVE_NUMBER_HL</span><span class="plain-syntax">, </span><span class="constant-syntax">2147483647</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="3-fc.html#SP1" class="function-link"><span class="function-syntax">FundamentalConstants::emit_signed</span></a><span class="plain-syntax">(</span><span class="constant-syntax">MIN_NEGATIVE_NUMBER_HL</span><span class="plain-syntax">, -2147483648);</span>
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<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
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|
<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>§2. </b>This version-numbering constant is not really to do with the VM (it is
|
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Inform's own version number), but it belongs nowhere else either, so:
|
|
</p>
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|
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<pre class="displayed-code all-displayed-code code-font">
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|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">FundamentalConstants::emit_build_number</span><span class="plain-syntax">(</span><span class="reserved-syntax">void</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">build</span><span class="plain-syntax">)</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">build</span><span class="plain-syntax">, </span><span class="string-syntax">"%B"</span><span class="plain-syntax">, </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">iname</span><span class="plain-syntax"> = </span><a href="2-hrr.html#SP6" class="function-link"><span class="function-syntax">Hierarchy::find</span></a><span class="plain-syntax">(</span><span class="constant-syntax">NI_BUILD_COUNT_HL</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="2-emt.html#SP9" class="function-link"><span class="function-syntax">Emit::text_constant</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">iname</span><span class="plain-syntax">, </span><span class="identifier-syntax">build</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="2-hrr.html#SP6" class="function-link"><span class="function-syntax">Hierarchy::make_available</span></a><span class="plain-syntax">(</span><a href="2-emt.html#SP1" class="function-link"><span class="function-syntax">Emit::tree</span></a><span class="plain-syntax">(), </span><span class="identifier-syntax">iname</span><span class="plain-syntax">);</span>
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|
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">build</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>§3. </b>This also doesn't really belong here, but...
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">FundamentalConstants::veto_number</span><span class="plain-syntax">(</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">X</span><span class="plain-syntax">) {</span>
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|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (((</span><span class="identifier-syntax">X</span><span class="plain-syntax"> > </span><span class="constant-syntax">32767</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">X</span><span class="plain-syntax"> < -32768)) &&</span>
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<span class="plain-syntax"> (</span><span class="identifier-syntax">TargetVMs::is_16_bit</span><span class="plain-syntax">(</span><span class="identifier-syntax">Task::vm</span><span class="plain-syntax">()))) {</span>
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|
<span class="plain-syntax"> </span><span class="identifier-syntax">StandardProblems::sentence_problem</span><span class="plain-syntax">(</span><span class="identifier-syntax">Task::syntax_tree</span><span class="plain-syntax">(), </span><span class="identifier-syntax">_p_</span><span class="plain-syntax">(</span><span class="identifier-syntax">PM_LiteralOverflow</span><span class="plain-syntax">),</span>
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|
<span class="plain-syntax"> </span><span class="string-syntax">"you use a number which is too large"</span><span class="plain-syntax">,</span>
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|
<span class="plain-syntax"> </span><span class="string-syntax">"at least with the Settings for this project as they currently "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"are. (Change to Glulx to be allowed to use much larger numbers.)"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
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|
<span class="plain-syntax">}</span>
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</pre>
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