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131 lines
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131 lines
4.3 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<!-- This file documents the GNU Assembler "as".
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Copyright (C) 1991-2019 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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<head>
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<title>TILE-Gx Registers (Using as)</title>
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<link href="AS-Index.html#AS-Index" rel="index" title="AS Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="TILE_002dGx-Syntax.html#TILE_002dGx-Syntax" rel="up" title="TILE-Gx Syntax">
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<link href="TILE_002dGx-Modifiers.html#TILE_002dGx-Modifiers" rel="next" title="TILE-Gx Modifiers">
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<body lang="en">
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<a name="TILE_002dGx-Registers"></a>
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<div class="header">
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<p>
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Next: <a href="TILE_002dGx-Modifiers.html#TILE_002dGx-Modifiers" accesskey="n" rel="next">TILE-Gx Modifiers</a>, Previous: <a href="TILE_002dGx-Opcodes.html#TILE_002dGx-Opcodes" accesskey="p" rel="prev">TILE-Gx Opcodes</a>, Up: <a href="TILE_002dGx-Syntax.html#TILE_002dGx-Syntax" accesskey="u" rel="up">TILE-Gx Syntax</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="AS-Index.html#AS-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<a name="Register-Names-16"></a>
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<h4 class="subsubsection">9.46.2.2 Register Names</h4>
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<a name="index-TILE_002dGx-register-names"></a>
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<a name="index-register-names_002c-TILE_002dGx"></a>
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<p>General-purpose registers are represented by predefined symbols of the
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form ‘<samp>r<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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</p>
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<dl compact="compact">
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<dt><code>r54</code></dt>
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<dd><p>sp
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</p>
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</dd>
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<dt><code>r55</code></dt>
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<dd><p>lr
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</p>
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</dd>
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<dt><code>r56</code></dt>
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<dd><p>sn
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</p>
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</dd>
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<dt><code>r57</code></dt>
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<dd><p>idn0
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</p>
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</dd>
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<dt><code>r58</code></dt>
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<dd><p>idn1
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</p>
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</dd>
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<dt><code>r59</code></dt>
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<dd><p>udn0
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</p>
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</dd>
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<dt><code>r60</code></dt>
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<dd><p>udn1
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</p>
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</dd>
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<dt><code>r61</code></dt>
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<dd><p>udn2
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</p>
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</dd>
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<dt><code>r62</code></dt>
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<dd><p>udn3
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</p>
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</dd>
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<dt><code>r63</code></dt>
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<dd><p>zero
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</p>
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</dd>
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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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</p>
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</body>
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</html>
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