Site build for: 099f7bb Comment from Noah Goldstein on interrupts

Author: travisdowns

docs/blog/2019/08/20/interrupts.html

@@ -747,6 +747,49 @@ <h2>Comments</h2>
 
 
 
+<article id="comment-2466a0f0-e288-11ef-98ee-e12241f4a0ad" class="js-comment comment" uid="2466a0f0-e288-11ef-98ee-e12241f4a0ad">
+
+  <div class="comment__author">
+    Noah Goldstein
+    <span class="comment__date">•
+        <a href="#comment-2466a0f0-e288-11ef-98ee-e12241f4a0ad" title="Permalink to this comment">February  3th, 2025 23:39</a></span>
+  </div>
+
+  <div class="comment__body">
+    <p>Using the “oldest unretired instruction” model, why is the <em>selected</em> instruction the <strong>first</strong> in a new retirement block i.e in the first example:</p>
+<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>;                            retire cycle
+mov    rax,QWORD PTR [rax] ; 0 (execution limited)
+nop                        ; 0
+nop                        ; 0
+nop                        ; 0 &lt;-- oldest unretired on cycle 0
+nop                        ; 1 &lt;-- selected nop
+nop                        ; 1
+nop                        ; 1
+nop                        ; 1 &lt;-- oldest unretired on cycle 1
+nop                        ; 2 &lt;-- selected nop
+nop                        ; 2
+nop                        ; 2 &lt;-- oldest unretired on cycle 2
+mov    rax,QWORD PTR [rax] ; 4 (execution limited)
+nop                        ; 4
+nop                        ; 4 &lt;-- oldest unretired on cycle 4
+
+</code></pre></div></div>
+
+  </div>
+
+
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+
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