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<h3>
Raymond Toy pushed to branch sparc64-dev
at <a href="https://gitlab.common-lisp.net/cmucl/cmucl">cmucl / cmucl</a>
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<h4>
Commits:
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<strong><a href="https://gitlab.common-lisp.net/cmucl/cmucl/commit/fc265b2a399cd15ecb0fe96d42cc7deceb58896b">fc265b2a</a></strong>
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<span>by Raymond Toy</span>
<i>at 2017-01-02T14:55:58-08:00</i>
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<pre class="commit-message" style="margin: 0; white-space: pre-wrap">Add stack-bias constant
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<h4>1 changed file:</h4>
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<a href="#119c94d0488956db25666dc3fe00e17942dbf7fe" style="text-decoration: none">
src/compiler/sparc64/parms.lisp
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<h4>Changes:</h4>
<li id="119c94d0488956db25666dc3fe00e17942dbf7fe">
<a href="https://gitlab.common-lisp.net/cmucl/cmucl/commit/fc265b2a399cd15ecb0fe96d42cc7deceb58896b#119c94d0488956db25666dc3fe00e17942dbf7fe"><strong>src/compiler/sparc64/parms.lisp</strong></a>
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<td class="line_content match " style="background: #fafafa; color: rgba(0,0,0,0.3); padding-left: 0.5em; padding-right: 0.5em" bgcolor="#fafafa">@@ -204,6 +204,14 @@</td>
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<pre style="margin: 0"> <span id="LC204" class="line"><span class="p">(</span><span class="nb" style="color: #0086b3">defconstant</span> <span class="nv" style="color: teal">number-stack-displacement</span></span>
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<pre style="margin: 0"> <span id="LC205" class="line"> <span class="p">(</span><span class="nb" style="color: #0086b3">*</span> <span class="mi" style="color: #099">16</span> <span class="nv" style="color: teal">vm:word-bytes</span><span class="p">))</span></span>
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<pre style="margin: 0">+<span id="LC207" class="line"><span class="c1" style="color: #998; font-style: italic">;;; STACK-BIAS</span></span>
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<pre style="margin: 0">+<span id="LC208" class="line"><span class="c1" style="color: #998; font-style: italic">;;;</span></span>
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<pre style="margin: 0">+<span id="LC209" class="line"><span class="c1" style="color: #998; font-style: italic">;;; The bias on the stack pointer (%sp) to get to the real top of</span></span>
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<pre style="margin: 0">+<span id="LC210" class="line"><span class="c1" style="color: #998; font-style: italic">;;; stack. 64-bit applications have a bias on the stack (apparently</span></span>
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<pre style="margin: 0">+<span id="LC211" class="line"><span class="c1" style="color: #998; font-style: italic">;;; to let the kernel easily tell if the application is a 32-bit or</span></span>
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<pre style="margin: 0">+<span id="LC212" class="line"><span class="c1" style="color: #998; font-style: italic">;;; 64-bit app).</span></span>
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<pre style="margin: 0">+<span id="LC213" class="line"><span class="p">(</span><span class="nb" style="color: #0086b3">defconstant</span> <span class="nv" style="color: teal">stack-bias</span> <span class="mi" style="color: #099">2047</span><span class="p">)</span></span>
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<pre style="margin: 0"> <span id="LC216" class="line"><span class="c1" style="color: #998; font-style: italic">;;;; Description of the target address space.</span></span>
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