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87 lines
3.2 KiB
HTML
87 lines
3.2 KiB
HTML
4 years ago
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<html lang="en">
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<head>
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<title>TILE-Gx Registers - Using as</title>
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<meta name="description" content="Using as">
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<link title="Top" rel="start" href="index.html#Top">
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<link rel="up" href="TILE_002dGx-Syntax.html#TILE_002dGx-Syntax" title="TILE-Gx Syntax">
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<link rel="prev" href="TILE_002dGx-Opcodes.html#TILE_002dGx-Opcodes" title="TILE-Gx Opcodes">
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<link rel="next" href="TILE_002dGx-Modifiers.html#TILE_002dGx-Modifiers" title="TILE-Gx Modifiers">
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<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
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<!--
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This file documents the GNU Assembler "as".
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Copyright (C) 1991-2015 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3
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or any later version published by the Free Software Foundation;
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with no Invariant Sections, with no Front-Cover Texts, and with no
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Back-Cover Texts. A copy of the license is included in the
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section entitled ``GNU Free Documentation License''.
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--></style>
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</head>
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<body>
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<div class="node">
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<a name="TILE-Gx-Registers"></a>
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<a name="TILE_002dGx-Registers"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="TILE_002dGx-Modifiers.html#TILE_002dGx-Modifiers">TILE-Gx Modifiers</a>,
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Previous: <a rel="previous" accesskey="p" href="TILE_002dGx-Opcodes.html#TILE_002dGx-Opcodes">TILE-Gx Opcodes</a>,
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Up: <a rel="up" accesskey="u" href="TILE_002dGx-Syntax.html#TILE_002dGx-Syntax">TILE-Gx Syntax</a>
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<hr>
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</div>
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<h5 class="subsubsection">9.45.2.2 Register Names</h5>
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<p><a name="index-TILE_002dGx-register-names-2231"></a><a name="index-register-names_002c-TILE_002dGx-2232"></a>
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General-purpose registers are represented by predefined symbols of the
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form ‘<samp><span class="samp">r</span><var>N</var></samp>’, where <var>N</var> represents a number between
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<code>0</code> and <code>63</code>. However, the following registers have
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canonical names that must be used instead:
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<dl>
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<dt><code>r54</code><dd>sp
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<br><dt><code>r55</code><dd>lr
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<br><dt><code>r56</code><dd>sn
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<br><dt><code>r57</code><dd>idn0
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<br><dt><code>r58</code><dd>idn1
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<br><dt><code>r59</code><dd>udn0
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<br><dt><code>r60</code><dd>udn1
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<br><dt><code>r61</code><dd>udn2
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<br><dt><code>r62</code><dd>udn3
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<br><dt><code>r63</code><dd>zero
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</dl>
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<p>The assembler will emit a warning if a numeric name is used instead of
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the non-numeric name. The <code>.no_require_canonical_reg_names</code>
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assembler pseudo-op turns off this
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warning. <code>.require_canonical_reg_names</code> turns it back on.
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</body></html>
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