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248 lines
27 KiB
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Copyright (C) 1996-1997, 2000-2005, 2009-2023 Free Software Foundation,
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Copyright (C) 2021 Maxime Devos
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Copyright (C) 2024 Tomas Volf
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<title>Comparison Instructions (Guile Reference Manual)</title>
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<div class="subsubsection-level-extent" id="Comparison-Instructions">
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<p>
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Next: <a href="Branch-Instructions.html" accesskey="n" rel="next">Branch Instructions</a>, Previous: <a href="Floating_002dPoint-Arithmetic-Instructions.html" accesskey="p" rel="prev">Floating-Point Arithmetic Instructions</a>, Up: <a href="Instruction-Set.html" accesskey="u" rel="up">Instruction Set</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html" title="Index" rel="index">Index</a>]</p>
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<hr>
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<h4 class="subsubsection" id="Comparison-Instructions-1"><span>9.3.7.14 Comparison Instructions<a class="copiable-link" href="#Comparison-Instructions-1"> ¶</a></span></h4>
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<dl class="first-deftypefn">
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<dt class="deftypefn" id="index-u64_003d_003f"><span class="category-def">Instruction: </span><span><strong class="def-name">u64=?</strong> <code class="def-code-arguments">s12:<var class="var">a</var> s12:<var class="var">b</var></code><a class="copiable-link" href="#index-u64_003d_003f"> ¶</a></span></dt>
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<dd><p>Set the comparison result to <var class="var">EQUAL</var> if the <code class="code">u64</code> values
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<var class="var">a</var> and <var class="var">b</var> are the same, or <code class="code">NONE</code> otherwise.
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</p></dd></dl>
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<dl class="first-deftypefn">
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<dt class="deftypefn" id="index-u64_003c_003f"><span class="category-def">Instruction: </span><span><strong class="def-name">u64<?</strong> <code class="def-code-arguments">s12:<var class="var">a</var> s12:<var class="var">b</var></code><a class="copiable-link" href="#index-u64_003c_003f"> ¶</a></span></dt>
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<dd><p>Set the comparison result to <code class="code">LESS_THAN</code> if the <code class="code">u64</code> value
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<var class="var">a</var> is less than the <code class="code">u64</code> value <var class="var">b</var> are the same, or
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<code class="code">NONE</code> otherwise.
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</p></dd></dl>
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<dl class="first-deftypefn">
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<dt class="deftypefn" id="index-s64_003c_003f"><span class="category-def">Instruction: </span><span><strong class="def-name">s64<?</strong> <code class="def-code-arguments">s12:<var class="var">a</var> s12:<var class="var">b</var></code><a class="copiable-link" href="#index-s64_003c_003f"> ¶</a></span></dt>
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<dd><p>Set the comparison result to <code class="code">LESS_THAN</code> if the <code class="code">s64</code> value
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<var class="var">a</var> is less than the <code class="code">s64</code> value <var class="var">b</var> are the same, or
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<code class="code">NONE</code> otherwise.
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</p></dd></dl>
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<dl class="first-deftypefn">
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<dt class="deftypefn" id="index-s64_002dimm_003d_003f"><span class="category-def">Instruction: </span><span><strong class="def-name">s64-imm=?</strong> <code class="def-code-arguments">s12:<var class="var">a</var> z12:<var class="var">b</var></code><a class="copiable-link" href="#index-s64_002dimm_003d_003f"> ¶</a></span></dt>
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<dd><p>Set the comparison result to <var class="var">EQUAL</var> if the <code class="code">s64</code> value <var class="var">a</var>
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is equal to the immediate <code class="code">s64</code> value <var class="var">b</var>, or <code class="code">NONE</code>
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otherwise.
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</p></dd></dl>
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<dl class="first-deftypefn">
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<dt class="deftypefn" id="index-u64_002dimm_003c_003f"><span class="category-def">Instruction: </span><span><strong class="def-name">u64-imm<?</strong> <code class="def-code-arguments">s12:<var class="var">a</var> c12:<var class="var">b</var></code><a class="copiable-link" href="#index-u64_002dimm_003c_003f"> ¶</a></span></dt>
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<dd><p>Set the comparison result to <code class="code">LESS_THAN</code> if the <code class="code">u64</code> value
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<var class="var">a</var> is less than the immediate <code class="code">u64</code> value <var class="var">b</var>, or
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<code class="code">NONE</code> otherwise.
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</p></dd></dl>
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<dl class="first-deftypefn">
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<dt class="deftypefn" id="index-imm_002du64_003c_003f"><span class="category-def">Instruction: </span><span><strong class="def-name">imm-u64<?</strong> <code class="def-code-arguments">s12:<var class="var">a</var> s12:<var class="var">b</var></code><a class="copiable-link" href="#index-imm_002du64_003c_003f"> ¶</a></span></dt>
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<dd><p>Set the comparison result to <code class="code">LESS_THAN</code> if the <code class="code">u64</code>
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immediate <var class="var">b</var> is less than the <code class="code">u64</code> value <var class="var">a</var>, or
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<code class="code">NONE</code> otherwise.
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</p></dd></dl>
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<dl class="first-deftypefn">
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<dt class="deftypefn" id="index-s64_002dimm_003c_003f"><span class="category-def">Instruction: </span><span><strong class="def-name">s64-imm<?</strong> <code class="def-code-arguments">s12:<var class="var">a</var> z12:<var class="var">b</var></code><a class="copiable-link" href="#index-s64_002dimm_003c_003f"> ¶</a></span></dt>
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<dd><p>Set the comparison result to <code class="code">LESS_THAN</code> if the <code class="code">s64</code> value
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<var class="var">a</var> is less than the immediate <code class="code">s64</code> value <var class="var">b</var>, or
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<code class="code">NONE</code> otherwise.
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</p></dd></dl>
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<dl class="first-deftypefn">
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<dt class="deftypefn" id="index-imm_002ds64_003c_003f"><span class="category-def">Instruction: </span><span><strong class="def-name">imm-s64<?</strong> <code class="def-code-arguments">s12:<var class="var">a</var> z12:<var class="var">b</var></code><a class="copiable-link" href="#index-imm_002ds64_003c_003f"> ¶</a></span></dt>
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<dd><p>Set the comparison result to <code class="code">LESS_THAN</code> if the <code class="code">s64</code>
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immediate <var class="var">b</var> is less than the <code class="code">s64</code> value <var class="var">a</var>, or
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<code class="code">NONE</code> otherwise.
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</p></dd></dl>
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<dl class="first-deftypefn">
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<dt class="deftypefn" id="index-f64_003d_003f"><span class="category-def">Instruction: </span><span><strong class="def-name">f64=?</strong> <code class="def-code-arguments">s12:<var class="var">a</var> s12:<var class="var">b</var></code><a class="copiable-link" href="#index-f64_003d_003f"> ¶</a></span></dt>
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<dd><p>Set the comparison result to <var class="var">EQUAL</var> if the f64 value <var class="var">a</var> is
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equal to the f64 value <var class="var">b</var>, or <code class="code">NONE</code> otherwise.
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</p></dd></dl>
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<dl class="first-deftypefn">
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<dt class="deftypefn" id="index-f64_003c_003f"><span class="category-def">Instruction: </span><span><strong class="def-name">f64<?</strong> <code class="def-code-arguments">s12:<var class="var">a</var> s12:<var class="var">b</var></code><a class="copiable-link" href="#index-f64_003c_003f"> ¶</a></span></dt>
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<dd><p>Set the comparison result to <code class="code">LESS_THAN</code> if the f64 value <var class="var">a</var>
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is less than the f64 value <var class="var">b</var>, <code class="code">NONE</code> if <var class="var">a</var> is greater
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than or equal to <var class="var">b</var>, or <code class="code">INVALID</code> otherwise.
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</p></dd></dl>
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<dl class="first-deftypefn">
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<dt class="deftypefn" id="index-_003d_003f"><span class="category-def">Instruction: </span><span><strong class="def-name">=?</strong> <code class="def-code-arguments">s12:<var class="var">a</var> s12:<var class="var">b</var></code><a class="copiable-link" href="#index-_003d_003f"> ¶</a></span></dt>
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<dd><p>Set the comparison result to <var class="var">EQUAL</var> if the SCM values <var class="var">a</var> and
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<var class="var">b</var> are numerically equal, in the sense of the Scheme <code class="code">=</code>
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operator. Set to <code class="code">NONE</code> otherwise.
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</p></dd></dl>
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<dl class="first-deftypefn">
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<dt class="deftypefn" id="index-heap_002dnumbers_002dequal_003f"><span class="category-def">Instruction: </span><span><strong class="def-name">heap-numbers-equal?</strong> <code class="def-code-arguments">s12:<var class="var">a</var> s12:<var class="var">b</var></code><a class="copiable-link" href="#index-heap_002dnumbers_002dequal_003f"> ¶</a></span></dt>
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<dd><p>Set the comparison result to <var class="var">EQUAL</var> if the SCM values <var class="var">a</var> and
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<var class="var">b</var> are numerically equal, in the sense of Scheme <code class="code">=</code>. Set to
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<code class="code">NONE</code> otherwise. It is known that both <var class="var">a</var> and <var class="var">b</var> are
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heap numbers.
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</p></dd></dl>
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<dl class="first-deftypefn">
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<dt class="deftypefn" id="index-_003c_003f"><span class="category-def">Instruction: </span><span><strong class="def-name"><?</strong> <code class="def-code-arguments">s12:<var class="var">a</var> s12:<var class="var">b</var></code><a class="copiable-link" href="#index-_003c_003f"> ¶</a></span></dt>
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<dd><p>Set the comparison result to <code class="code">LESS_THAN</code> if the SCM value <var class="var">a</var>
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is less than the SCM value <var class="var">b</var>, <code class="code">NONE</code> if <var class="var">a</var> is greater
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than or equal to <var class="var">b</var>, or <code class="code">INVALID</code> otherwise.
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</p></dd></dl>
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<dl class="first-deftypefn">
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<dt class="deftypefn" id="index-immediate_002dtag_003d_003f"><span class="category-def">Instruction: </span><span><strong class="def-name">immediate-tag=?</strong> <code class="def-code-arguments">s24:<var class="var">obj</var> c16:<var class="var">mask</var> c16:<var class="var">tag</var></code><a class="copiable-link" href="#index-immediate_002dtag_003d_003f"> ¶</a></span></dt>
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<dd><p>Set the comparison result to <var class="var">EQUAL</var> if the result of a bitwise
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<code class="code">and</code> between the bits of <code class="code">scm</code> value <var class="var">a</var> and the
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immediate <var class="var">mask</var> is <var class="var">tag</var>, or <code class="code">NONE</code> otherwise.
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</p></dd></dl>
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<dl class="first-deftypefn">
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<dt class="deftypefn" id="index-heap_002dtag_003d_003f"><span class="category-def">Instruction: </span><span><strong class="def-name">heap-tag=?</strong> <code class="def-code-arguments">s24:<var class="var">obj</var> c16:<var class="var">mask</var> c16:<var class="var">tag</var></code><a class="copiable-link" href="#index-heap_002dtag_003d_003f"> ¶</a></span></dt>
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<dd><p>Set the comparison result to <var class="var">EQUAL</var> if the result of a bitwise
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<code class="code">and</code> between the first word of <code class="code">scm</code> value <var class="var">a</var> and the
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immediate <var class="var">mask</var> is <var class="var">tag</var>, or <code class="code">NONE</code> otherwise.
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</p></dd></dl>
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<dl class="first-deftypefn">
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<dt class="deftypefn" id="index-eq_003f-2"><span class="category-def">Instruction: </span><span><strong class="def-name">eq?</strong> <code class="def-code-arguments">s12:<var class="var">a</var> s12:<var class="var">b</var></code><a class="copiable-link" href="#index-eq_003f-2"> ¶</a></span></dt>
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<dd><p>Set the comparison result to <var class="var">EQUAL</var> if the SCM values <var class="var">a</var> and
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<var class="var">b</var> are <code class="code">eq?</code>, or <code class="code">NONE</code> otherwise.
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</p></dd></dl>
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<dl class="first-deftypefn">
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<dt class="deftypefn" id="index-eq_002dimmediate_003f"><span class="category-def">Instruction: </span><span><strong class="def-name">eq-immediate?</strong> <code class="def-code-arguments">s8:<var class="var">a</var> zi16:<var class="var">b</var></code><a class="copiable-link" href="#index-eq_002dimmediate_003f"> ¶</a></span></dt>
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<dd><p>Set the comparison result to <var class="var">EQUAL</var> if the SCM value <var class="var">a</var> is
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equal to the immediate SCM value <var class="var">b</var> (sign-extended), or <code class="code">NONE</code>
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otherwise.
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</p></dd></dl>
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<p>There are a set of macro-instructions for <code class="code">immediate-tag=?</code> and
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<code class="code">heap-tag=?</code> as well that abstract away the precise type tag
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values. See <a class="xref" href="The-SCM-Type-in-Guile.html">The SCM Type in Guile</a>.
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</p>
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<dl class="first-deffn">
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<dt class="deffn" id="index-fixnum_003f-1"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">fixnum?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-fixnum_003f-1"> ¶</a></span></dt>
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<dt class="deffnx def-cmd-deffn" id="index-heap_002dobject_003f"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">heap-object?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-heap_002dobject_003f"> ¶</a></span></dt>
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<dt class="deffnx def-cmd-deffn" id="index-char_003f-2"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">char?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-char_003f-2"> ¶</a></span></dt>
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<dt class="deffnx def-cmd-deffn" id="index-eq_002dfalse_003f"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">eq-false?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-eq_002dfalse_003f"> ¶</a></span></dt>
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<dt class="deffnx def-cmd-deffn" id="index-eq_002dnil_003f"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">eq-nil?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-eq_002dnil_003f"> ¶</a></span></dt>
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<dt class="deffnx def-cmd-deffn" id="index-eq_002dnull_003f"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">eq-null?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-eq_002dnull_003f"> ¶</a></span></dt>
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<dt class="deffnx def-cmd-deffn" id="index-eq_002dtrue_003f"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">eq-true?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-eq_002dtrue_003f"> ¶</a></span></dt>
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<dt class="deffnx def-cmd-deffn" id="index-unspecified_003f"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">unspecified?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-unspecified_003f"> ¶</a></span></dt>
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<dt class="deffnx def-cmd-deffn" id="index-undefined_003f"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">undefined?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-undefined_003f"> ¶</a></span></dt>
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||
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<dt class="deffnx def-cmd-deffn" id="index-eof_002dobject_003f-3"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">eof-object?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-eof_002dobject_003f-3"> ¶</a></span></dt>
|
||
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|
<dt class="deffnx def-cmd-deffn" id="index-null_003f-2"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">null?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-null_003f-2"> ¶</a></span></dt>
|
||
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|
<dt class="deffnx def-cmd-deffn" id="index-false_003f"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">false?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-false_003f"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-nil_003f-1"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">nil?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-nil_003f-1"> ¶</a></span></dt>
|
||
|
|
<dd><p>Emit a <code class="code">immediate-tag=?</code> instruction that will set the comparison
|
||
|
|
result to <code class="code">EQUAL</code> if <var class="var">x</var> would pass the corresponding predicate
|
||
|
|
(e.g. <code class="code">null?</code>), or <code class="code">NONE</code> otherwise.
|
||
|
|
</p></dd></dl>
|
||
|
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||
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|
<dl class="first-deffn">
|
||
|
|
<dt class="deffn" id="index-pair_003f-2"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">pair?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-pair_003f-2"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-struct_003f-1"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">struct?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-struct_003f-1"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-symbol_003f-2"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">symbol?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-symbol_003f-2"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-variable_003f-1"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">variable?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-variable_003f-1"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-vector_003f-3"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">vector?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-vector_003f-3"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-immutable_002dvector_003f"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">immutable-vector?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-immutable_002dvector_003f"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-mutable_002dvector_003f"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">mutable-vector?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-mutable_002dvector_003f"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-weak_002dvector_003f-1"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">weak-vector?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-weak_002dvector_003f-1"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-string_003f-2"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">string?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-string_003f-2"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-heap_002dnumber_003f"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">heap-number?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-heap_002dnumber_003f"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-hash_002dtable_003f-1"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">hash-table?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-hash_002dtable_003f-1"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-pointer_003f-1"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">pointer?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-pointer_003f-1"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-fluid_003f-1"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">fluid?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-fluid_003f-1"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-stringbuf_003f"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">stringbuf?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-stringbuf_003f"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-dynamic_002dstate_003f-1"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">dynamic-state?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-dynamic_002dstate_003f-1"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-frame_003f-1"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">frame?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-frame_003f-1"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-keyword_003f-2"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">keyword?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-keyword_003f-2"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-atomic_002dbox_003f-1"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">atomic-box?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-atomic_002dbox_003f-1"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-syntax_003f"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">syntax?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-syntax_003f"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-program_003f-1"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">program?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-program_003f-1"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-vm_002dcontinuation_003f"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">vm-continuation?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-vm_002dcontinuation_003f"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-bytevector_003f-1"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">bytevector?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-bytevector_003f-1"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-weak_002dset_003f"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">weak-set?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-weak_002dset_003f"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-weak_002dtable_003f"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">weak-table?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-weak_002dtable_003f"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-array_003f-1"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">array?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-array_003f-1"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-bitvector_003f-1"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">bitvector?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-bitvector_003f-1"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-smob_003f"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">smob?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-smob_003f"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-port_003f-2"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">port?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-port_003f-2"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-bignum_003f"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">bignum?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-bignum_003f"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-flonum_003f-1"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">flonum?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-flonum_003f-1"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-compnum_003f"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">compnum?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-compnum_003f"> ¶</a></span></dt>
|
||
|
|
<dt class="deffnx def-cmd-deffn" id="index-fracnum_003f"><span class="category-def">Macro Instruction: </span><span><strong class="def-name">fracnum?</strong> <var class="def-var-arguments">x</var><a class="copiable-link" href="#index-fracnum_003f"> ¶</a></span></dt>
|
||
|
|
<dd><p>Emit a <code class="code">heap-tag=?</code> instruction that will set the comparison result
|
||
|
|
to <code class="code">EQUAL</code> if <var class="var">x</var> would pass the corresponding predicate
|
||
|
|
(e.g. <code class="code">null?</code>), or <code class="code">NONE</code> otherwise.
|
||
|
|
</p></dd></dl>
|
||
|
|
|
||
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||
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</div>
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||
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<hr>
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<div class="nav-panel">
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<p>
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Next: <a href="Branch-Instructions.html">Branch Instructions</a>, Previous: <a href="Floating_002dPoint-Arithmetic-Instructions.html">Floating-Point Arithmetic Instructions</a>, Up: <a href="Instruction-Set.html">Instruction Set</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html" title="Index" rel="index">Index</a>]</p>
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