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<h3>
Raymond Toy pushed to branch issue-95-fix-disassem-syntax
at <a href="https://gitlab.common-lisp.net/cmucl/cmucl">cmucl / cmucl</a>
</h3>
<h4>
Commits:
</h4>
<ul>
<li>
<strong><a href="https://gitlab.common-lisp.net/cmucl/cmucl/-/commit/a99465d8e3c6cb2f245b2783c21d55b38b235177">a99465d8</a></strong>
<div>
<span>by Raymond Toy</span>
<i>at 2021-01-10T11:06:53-08:00</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Make more mem access print out the size
But we don't want to do that for the LEA instruction. gcc doesn't
require it and objdump doesn't print out a size.
</pre>
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<h4>1 changed file:</h4>
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<a href="#2a6bca7a142015890af48e53d45089058f833609">
src/compiler/x86/insts.lisp
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<h4>Changes:</h4>
<li id="2a6bca7a142015890af48e53d45089058f833609">
<a href="https://gitlab.common-lisp.net/cmucl/cmucl/-/commit/a99465d8e3c6cb2f245b2783c21d55b38b235177#2a6bca7a142015890af48e53d45089058f833609"><strong>src/compiler/x86/insts.lisp</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -797,7 +797,7 @@</td>
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797
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<pre style="margin: 0;"> <span id="LC797" class="line" lang="common_lisp"> <span class="p">(</span><span class="nv" style="color: #008080;">op</span> <span class="ss" style="color: #990073;">:field</span> <span class="p">(</span><span class="nb" style="color: #0086b3;">byte</span> <span class="mi" style="color: #099;">7</span> <span class="mi" style="color: #099;">1</span><span class="p">))</span></span>
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798
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798
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<pre style="margin: 0;"> <span id="LC798" class="line" lang="common_lisp"> <span class="p">(</span><span class="nv" style="color: #008080;">width</span> <span class="ss" style="color: #990073;">:field</span> <span class="p">(</span><span class="nb" style="color: #0086b3;">byte</span> <span class="mi" style="color: #099;">1</span> <span class="mi" style="color: #099;">0</span><span class="p">)</span> <span class="ss" style="color: #990073;">:type</span> <span class="ss" style="color: #990073;">'width</span><span class="p">)</span></span>
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799
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799
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<pre style="margin: 0;"> <span id="LC799" class="line" lang="common_lisp"> <span class="p">(</span><span class="nv" style="color: #008080;">reg/mem</span> <span class="ss" style="color: #990073;">:fields</span> <span class="p">(</span><span class="nb" style="color: #0086b3;">list</span> <span class="p">(</span><span class="nb" style="color: #0086b3;">byte</span> <span class="mi" style="color: #099;">2</span> <span class="mi" style="color: #099;">14</span><span class="p">)</span> <span class="p">(</span><span class="nb" style="color: #0086b3;">byte</span> <span class="mi" style="color: #099;">3</span> <span class="mi" style="color: #099;">8</span><span class="p">))</span></span>
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<pre style="margin: 0;">-<span id="LC800" class="line" lang="common_lisp"> <span class="ss" style="color: #990073;">:type</span> <span class="ss" style="color: #990073;">'reg/mem</span><span class="p">)</span></span>
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800
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<pre style="margin: 0;">+<span id="LC800" class="line" lang="common_lisp"> <span class="ss" style="color: #990073;">:type</span> <span class="ss" style="color: #990073;">'<span class="idiff left right">sized-</span>reg/mem</span><span class="p">)</span></span>
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801
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<pre style="margin: 0;"> <span id="LC801" class="line" lang="common_lisp"> <span class="p">(</span><span class="nv" style="color: #008080;">reg</span> <span class="ss" style="color: #990073;">:field</span> <span class="p">(</span><span class="nb" style="color: #0086b3;">byte</span> <span class="mi" style="color: #099;">3</span> <span class="mi" style="color: #099;">11</span><span class="p">)</span> <span class="ss" style="color: #990073;">:type</span> <span class="ss" style="color: #990073;">'reg</span><span class="p">)</span></span>
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802
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802
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<pre style="margin: 0;"> <span id="LC802" class="line" lang="common_lisp"> <span class="c1" style="color: #998; font-style: italic;">;; optional fields</span></span>
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803
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803
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<pre style="margin: 0;"> <span id="LC803" class="line" lang="common_lisp"> <span class="p">(</span><span class="nv" style="color: #008080;">imm</span><span class="p">))</span></span>
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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="835" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -835,7 +835,10 @@</td>
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<pre style="margin: 0;"> <span id="LC835" class="line" lang="common_lisp"><span class="p">(</span><span class="nv" style="color: #008080;">disassem:define-instruction-format</span></span>
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836
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836
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<pre style="margin: 0;"> <span id="LC836" class="line" lang="common_lisp"> <span class="p">(</span><span class="nv" style="color: #008080;">accum-reg/mem</span> <span class="mi" style="color: #099;">16</span></span>
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837
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837
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<pre style="margin: 0;"> <span id="LC837" class="line" lang="common_lisp"> <span class="ss" style="color: #990073;">:include</span> <span class="ss" style="color: #990073;">'reg/mem</span> <span class="ss" style="color: #990073;">:default-printer</span> <span class="o" style="font-weight: 600;">'</span><span class="p">(</span><span class="ss" style="color: #990073;">:name</span> <span class="ss" style="color: #990073;">:tab</span> <span class="nv" style="color: #008080;">accum</span> <span class="s" style="color: #d14;">", "</span> <span class="nv" style="color: #008080;">reg/mem</span><span class="p">))</span></span>
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838
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<td class="diff-line-num new_line old" data-linenumber="838" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC838" class="line" lang="common_lisp"> <span class="p">(</span><span class="nv" style="color: #008080;">reg/mem</span> <span class="ss" style="color: #990073;">:type</span> <span class="ss" style="color: #990073;">'reg/mem</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">; don't need a size</span></span>
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<pre style="margin: 0;">+<span id="LC838" class="line" lang="common_lisp"> <span class="c1" style="color: #998; font-style: italic;">;; This format uses the accumulator, so the size is known; therefore</span></span>
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<pre style="margin: 0;">+<span id="LC839" class="line" lang="common_lisp"> <span class="c1" style="color: #998; font-style: italic;">;; we don't really need to print out the memory size, but let's do</span></span>
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<pre style="margin: 0;">+<span id="LC840" class="line" lang="common_lisp"> <span class="c1" style="color: #998; font-style: italic;">;; it for consistency.</span></span>
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<pre style="margin: 0;">+<span id="LC841" class="line" lang="common_lisp"> <span class="p">(</span><span class="nv" style="color: #008080;">reg/mem</span> <span class="ss" style="color: #990073;">:type</span> <span class="ss" style="color: #990073;">'sized-reg/mem</span><span class="p">)</span></span>
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842
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<pre style="margin: 0;"> <span id="LC842" class="line" lang="common_lisp"> <span class="p">(</span><span class="nv" style="color: #008080;">accum</span> <span class="ss" style="color: #990073;">:type</span> <span class="ss" style="color: #990073;">'accum</span><span class="p">))</span></span>
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<pre style="margin: 0;"> <span id="LC843" class="line" lang="common_lisp"></span>
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<td class="diff-line-num old_line" data-linenumber="841" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
841
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844
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<pre style="margin: 0;"> <span id="LC844" class="line" lang="common_lisp"><span class="c1" style="color: #998; font-style: italic;">;;; Same as reg-reg/mem, but with a prefix of #b00001111</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1132" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1135" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1132,7 +1135,8 @@</td>
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1132
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1135
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<pre style="margin: 0;"> <span id="LC1135" class="line" lang="common_lisp"> <span class="p">(</span><span class="nb" style="color: #0086b3;">error</span> <span class="s" style="color: #d14;">"Bogus args to XCHG: ~S ~S"</span> <span class="nv" style="color: #008080;">operand1</span> <span class="nv" style="color: #008080;">operand2</span><span class="p">)))))))</span></span>
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<td class="diff-line-num old_line" data-linenumber="1133" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1133
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1136
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<pre style="margin: 0;"> <span id="LC1136" class="line" lang="common_lisp"></span>
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1134
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<td class="diff-line-num new_line" data-linenumber="1137" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1137
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<pre style="margin: 0;"> <span id="LC1137" class="line" lang="common_lisp"><span class="p">(</span><span class="nv" style="color: #008080;">define-instruction</span> <span class="nv" style="color: #008080;">lea</span> <span class="p">(</span><span class="nv" style="color: #008080;">segment</span> <span class="nv" style="color: #008080;">dst</span> <span class="nv" style="color: #008080;">src</span><span class="p">)</span></span>
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1135
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<pre style="margin: 0;">-<span id="LC1135" class="line" lang="common_lisp"> <span class="p">(</span><span class="ss" style="color: #990073;">:printer</span> <span class="nv" style="color: #008080;">reg-reg/mem</span> <span class="p">((</span><span class="nv" style="color: #008080;">op</span> <span class="m" style="color: #099;">#b1000110</span><span class="p">)</span> <span class="p">(</span><span class="nv" style="color: #008080;">width</span> <span class="mi" style="color: #099;">1</span><span class="p">)))</span></span>
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1138
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<pre style="margin: 0;">+<span id="LC1138" class="line" lang="common_lisp"> <span class="c1" style="color: #998; font-style: italic;">;; Don't need to print out the width for the LEA instruction</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1139" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1139
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<pre style="margin: 0;">+<span id="LC1139" class="line" lang="common_lisp"> <span class="p">(</span><span class="ss" style="color: #990073;">:printer</span> <span class="nv" style="color: #008080;">reg-reg/mem</span> <span class="p">((</span><span class="nv" style="color: #008080;">op</span> <span class="m" style="color: #099;">#b1000110</span><span class="p">)</span> <span class="p">(</span><span class="nv" style="color: #008080;">width</span> <span class="mi" style="color: #099;">1</span><span class="p">)</span> <span class="p">(</span><span class="nv" style="color: #008080;">reg/mem</span> <span class="no" style="color: #008080;">nil</span> <span class="ss" style="color: #990073;">:type</span> <span class="ss" style="color: #990073;">'reg/mem</span><span class="p">)))</span></span>
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1136
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1140
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<pre style="margin: 0;"> <span id="LC1140" class="line" lang="common_lisp"> <span class="p">(</span><span class="ss" style="color: #990073;">:emitter</span></span>
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1137
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<td class="diff-line-num new_line" data-linenumber="1141" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1141
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<pre style="margin: 0;"> <span id="LC1141" class="line" lang="common_lisp"> <span class="p">(</span><span class="nb" style="color: #0086b3;">assert</span> <span class="p">(</span><span class="nv" style="color: #008080;">dword-reg-p</span> <span class="nv" style="color: #008080;">dst</span><span class="p">))</span></span>
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1138
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1142
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<pre style="margin: 0;"> <span id="LC1142" class="line" lang="common_lisp"> <span class="p">(</span><span class="nv" style="color: #008080;">emit-byte</span> <span class="nv" style="color: #008080;">segment</span> <span class="m" style="color: #099;">#b10001101</span><span class="p">)</span></span>
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