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authorKartik K. Agaram <vc@akkartik.com>2016-12-26 01:17:01 -0800
committerKartik K. Agaram <vc@akkartik.com>2016-12-26 01:26:16 -0800
commite5c11a5137d538b7713dd8708ca767c208824c06 (patch)
tree82976fd80e5d8048840701c351827730b29f89f6 /html/024jump.cc.html
parent63e1c465e46502bd7c391e31db73e7e5ae19adfd (diff)
downloadmu-e5c11a5137d538b7713dd8708ca767c208824c06.tar.gz
3709 - line numbers in html
Each line number also gets an anchor name, but I'm not hyperlinking them for now
because I don't want to encourage bookmarking these links just yet. They aren't
permalinks because every revision may change what's at any given line number.
Diffstat (limited to 'html/024jump.cc.html')
-rw-r--r--html/024jump.cc.html342
1 files changed, 183 insertions, 159 deletions
diff --git a/html/024jump.cc.html b/html/024jump.cc.html
index 2612bcf9..c72b9294 100644
--- a/html/024jump.cc.html
+++ b/html/024jump.cc.html
@@ -6,7 +6,7 @@
 <meta name="Generator" content="Vim/7.4">
 <meta name="plugin-version" content="vim7.4_v2">
 <meta name="syntax" content="cpp">
-<meta name="settings" content="use_css,pre_wrap,no_foldcolumn,expand_tabs,prevent_copy=">
+<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
 <meta name="colorscheme" content="minimal">
 <style type="text/css">
 <!--
@@ -15,11 +15,12 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
 * { font-size: 12pt; font-size: 1em; }
 .Constant { color: #00a0a0; }
 .traceAbsent { color: #c00000; }
-.cSpecial { color: #008000; }
+.Special { color: #c00000; }
 .muRecipe { color: #ff8700; }
+.cSpecial { color: #008000; }
 .Comment { color: #9090ff; }
 .Delimiter { color: #800080; }
-.Special { color: #c00000; }
+.LineNr { color: #444444; }
 .traceContains { color: #008000; }
 .Normal { color: #eeeeee; background-color: #080808; padding-bottom: 1px; }
 .Identifier { color: #c0a020; }
@@ -29,166 +30,189 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
 <script type='text/javascript'>
 <!--
 
+/* function to open any folds containing a jumped-to line before jumping to it */
+function JumpToLine()
+{
+  var lineNum;
+  lineNum = window.location.hash;
+  lineNum = lineNum.substr(1); /* strip off '#' */
+
+  if (lineNum.indexOf('L') == -1) {
+    lineNum = 'L'+lineNum;
+  }
+  lineElem = document.getElementById(lineNum);
+  /* Always jump to new location even if the line was hidden inside a fold, or
+   * we corrected the raw number to a line ID.
+   */
+  if (lineElem) {
+    lineElem.scrollIntoView(true);
+  }
+  return true;
+}
+if ('onhashchange' in window) {
+  window.onhashchange = JumpToLine;
+}
+
 -->
 </script>
 </head>
-<body>
+<body onload='JumpToLine();'>
 <pre id='vimCodeElement'>
-<span class="Comment">//: Jump primitives</span>
-
-<span class="Delimiter">:(scenario jump_can_skip_instructions)</span>
-<span class="muRecipe">def</span> main [
-  jump <span class="Constant">1:offset</span>
-  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">1</span>
-]
-<span class="traceContains">+run: jump {1: &quot;offset&quot;}</span>
-<span class="traceAbsent">-run: {1: &quot;number&quot;} &lt;- copy {1: &quot;literal&quot;}</span>
-<span class="traceAbsent">-mem: storing 1 in location 1</span>
-
-<span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
-JUMP<span class="Delimiter">,</span>
-<span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;jump&quot;</span><span class="Delimiter">,</span> JUMP<span class="Delimiter">);</span>
-<span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
-<span class="Normal">case</span> JUMP: <span class="Delimiter">{</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'jump' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_literal<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of 'jump' should be a label or offset, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Identifier">break</span><span class="Delimiter">;</span>
-<span class="Delimiter">}</span>
-<span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
-<span class="Normal">case</span> JUMP: <span class="Delimiter">{</span>
-  assert<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>initialized<span class="Delimiter">);</span>
-  current_step_index<span class="Delimiter">()</span> += ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span>+<span class="Constant">1</span><span class="Delimiter">;</span>
-  trace<span class="Delimiter">(</span><span class="Constant">9998</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;jumping to instruction &quot;</span> &lt;&lt; current_step_index<span class="Delimiter">()</span> &lt;&lt; end<span class="Delimiter">();</span>
-  <span class="Identifier">continue</span><span class="Delimiter">;</span>  <span class="Comment">// skip rest of this instruction</span>
-<span class="Delimiter">}</span>
-
-<span class="Comment">//: special type to designate jump targets</span>
-<span class="Delimiter">:(before &quot;End Mu Types Initialization&quot;)</span>
-put<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;offset&quot;</span><span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">);</span>
-
-<span class="Delimiter">:(scenario jump_backward)</span>
-<span class="muRecipe">def</span> main [
-  jump <span class="Constant">1:offset</span>  <span class="Comment"># 0 -+</span>
-  jump <span class="Constant">3:offset</span>  <span class="Comment">#    |   +-+ 1</span>
-                 <span class="Comment">#   \/  /\ |</span>
-  jump <span class="Constant">-2:offset</span> <span class="Comment">#  2 +--&gt;+ |</span>
-]                <span class="Comment">#         \/ 3</span>
-<span class="traceContains">+run: jump {1: &quot;offset&quot;}</span>
-<span class="traceContains">+run: jump {-2: &quot;offset&quot;}</span>
-<span class="traceContains">+run: jump {3: &quot;offset&quot;}</span>
-
-<span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
-JUMP_IF<span class="Delimiter">,</span>
-<span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;jump-if&quot;</span><span class="Delimiter">,</span> JUMP_IF<span class="Delimiter">);</span>
-<span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
-<span class="Normal">case</span> JUMP_IF: <span class="Delimiter">{</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'jump-if' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_scalar<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'jump-if' requires a boolean for its first ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_literal<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'jump-if' requires a label or offset for its second ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Comment">// End JUMP_IF Checks</span>
-  <span class="Identifier">break</span><span class="Delimiter">;</span>
-<span class="Delimiter">}</span>
-<span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
-<span class="Normal">case</span> JUMP_IF: <span class="Delimiter">{</span>
-  assert<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>initialized<span class="Delimiter">);</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>!ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> <span class="Delimiter">{</span>
-    trace<span class="Delimiter">(</span><span class="Constant">9998</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;jump-if fell through&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  current_step_index<span class="Delimiter">()</span> += ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span>+<span class="Constant">1</span><span class="Delimiter">;</span>
-  trace<span class="Delimiter">(</span><span class="Constant">9998</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;jumping to instruction &quot;</span> &lt;&lt; current_step_index<span class="Delimiter">()</span> &lt;&lt; end<span class="Delimiter">();</span>
-  <span class="Identifier">continue</span><span class="Delimiter">;</span>  <span class="Comment">// skip rest of this instruction</span>
-<span class="Delimiter">}</span>
-
-<span class="Delimiter">:(scenario jump_if)</span>
-<span class="muRecipe">def</span> main [
-  jump-<span class="Normal">if</span> <span class="Constant">999</span><span class="Delimiter">,</span> <span class="Constant">1:offset</span>
-  <span class="Constant">123</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">1</span>
-]
-<span class="traceContains">+run: jump-if {999: &quot;literal&quot;}, {1: &quot;offset&quot;}</span>
-<span class="traceContains">+run: jumping to instruction 2</span>
-<span class="traceAbsent">-run: {1: &quot;number&quot;} &lt;- copy {1: &quot;literal&quot;}</span>
-<span class="traceAbsent">-mem: storing 1 in location 123</span>
-
-<span class="Delimiter">:(scenario jump_if_fallthrough)</span>
-<span class="muRecipe">def</span> main [
-  jump-<span class="Normal">if</span> <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">1:offset</span>
-  <span class="Constant">123</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">1</span>
-]
-<span class="traceContains">+run: jump-if {0: &quot;literal&quot;}, {1: &quot;offset&quot;}</span>
-<span class="traceContains">+run: jump-if fell through</span>
-<span class="traceContains">+run: {123: &quot;number&quot;} &lt;- copy {1: &quot;literal&quot;}</span>
-<span class="traceContains">+mem: storing 1 in location 123</span>
-
-<span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
-JUMP_UNLESS<span class="Delimiter">,</span>
-<span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;jump-unless&quot;</span><span class="Delimiter">,</span> JUMP_UNLESS<span class="Delimiter">);</span>
-<span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
-<span class="Normal">case</span> JUMP_UNLESS: <span class="Delimiter">{</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'jump-unless' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_scalar<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'jump-unless' requires a boolean for its first ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_literal<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'jump-unless' requires a label or offset for its second ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Comment">// End JUMP_UNLESS Checks</span>
-  <span class="Identifier">break</span><span class="Delimiter">;</span>
-<span class="Delimiter">}</span>
-<span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
-<span class="Normal">case</span> JUMP_UNLESS: <span class="Delimiter">{</span>
-  assert<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>initialized<span class="Delimiter">);</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> <span class="Delimiter">{</span>
-    trace<span class="Delimiter">(</span><span class="Constant">9998</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;jump-unless fell through&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  current_step_index<span class="Delimiter">()</span> += ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span>+<span class="Constant">1</span><span class="Delimiter">;</span>
-  trace<span class="Delimiter">(</span><span class="Constant">9998</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;jumping to instruction &quot;</span> &lt;&lt; current_step_index<span class="Delimiter">()</span> &lt;&lt; end<span class="Delimiter">();</span>
-  <span class="Identifier">continue</span><span class="Delimiter">;</span>  <span class="Comment">// skip rest of this instruction</span>
-<span class="Delimiter">}</span>
-
-<span class="Delimiter">:(scenario jump_unless)</span>
-<span class="muRecipe">def</span> main [
-  jump-unless <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">1:offset</span>
-  <span class="Constant">123</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">1</span>
-]
-<span class="traceContains">+run: jump-unless {0: &quot;literal&quot;}, {1: &quot;offset&quot;}</span>
-<span class="traceContains">+run: jumping to instruction 2</span>
-<span class="traceAbsent">-run: {123: &quot;number&quot;} &lt;- copy {1: &quot;literal&quot;}</span>
-<span class="traceAbsent">-mem: storing 1 in location 123</span>
-
-<span class="Delimiter">:(scenario jump_unless_fallthrough)</span>
-<span class="muRecipe">def</span> main [
-  jump-unless <span class="Constant">999</span><span class="Delimiter">,</span> <span class="Constant">1:offset</span>
-  <span class="Constant">123</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">1</span>
-]
-<span class="traceContains">+run: jump-unless {999: &quot;literal&quot;}, {1: &quot;offset&quot;}</span>
-<span class="traceContains">+run: jump-unless fell through</span>
-<span class="traceContains">+run: {123: &quot;number&quot;} &lt;- copy {1: &quot;literal&quot;}</span>
-<span class="traceContains">+mem: storing 1 in location 123</span>
+<a name="L1"></a><span id="L1" class="LineNr">  1 </span><span class="Comment">//: Jump primitives</span>
+<a name="L2"></a><span id="L2" class="LineNr">  2 </span>
+<a name="L3"></a><span id="L3" class="LineNr">  3 </span><span class="Delimiter">:(scenario jump_can_skip_instructions)</span>
+<a name="L4"></a><span id="L4" class="LineNr">  4 </span><span class="muRecipe">def</span> main [
+<a name="L5"></a><span id="L5" class="LineNr">  5 </span>  jump <span class="Constant">1:offset</span>
+<a name="L6"></a><span id="L6" class="LineNr">  6 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">1</span>
+<a name="L7"></a><span id="L7" class="LineNr">  7 </span>]
+<a name="L8"></a><span id="L8" class="LineNr">  8 </span><span class="traceContains">+run: jump {1: &quot;offset&quot;}</span>
+<a name="L9"></a><span id="L9" class="LineNr">  9 </span><span class="traceAbsent">-run: {1: &quot;number&quot;} &lt;- copy {1: &quot;literal&quot;}</span>
+<a name="L10"></a><span id="L10" class="LineNr"> 10 </span><span class="traceAbsent">-mem: storing 1 in location 1</span>
+<a name="L11"></a><span id="L11" class="LineNr"> 11 </span>
+<a name="L12"></a><span id="L12" class="LineNr"> 12 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
+<a name="L13"></a><span id="L13" class="LineNr"> 13 </span>JUMP<span class="Delimiter">,</span>
+<a name="L14"></a><span id="L14" class="LineNr"> 14 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
+<a name="L15"></a><span id="L15" class="LineNr"> 15 </span>put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;jump&quot;</span><span class="Delimiter">,</span> JUMP<span class="Delimiter">);</span>
+<a name="L16"></a><span id="L16" class="LineNr"> 16 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
+<a name="L17"></a><span id="L17" class="LineNr"> 17 </span><span class="Normal">case</span> JUMP: <span class="Delimiter">{</span>
+<a name="L18"></a><span id="L18" class="LineNr"> 18 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<a name="L19"></a><span id="L19" class="LineNr"> 19 </span>    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'jump' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L20"></a><span id="L20" class="LineNr"> 20 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L21"></a><span id="L21" class="LineNr"> 21 </span>  <span class="Delimiter">}</span>
+<a name="L22"></a><span id="L22" class="LineNr"> 22 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_literal<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
+<a name="L23"></a><span id="L23" class="LineNr"> 23 </span>    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of 'jump' should be a label or offset, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L24"></a><span id="L24" class="LineNr"> 24 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L25"></a><span id="L25" class="LineNr"> 25 </span>  <span class="Delimiter">}</span>
+<a name="L26"></a><span id="L26" class="LineNr"> 26 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L27"></a><span id="L27" class="LineNr"> 27 </span><span class="Delimiter">}</span>
+<a name="L28"></a><span id="L28" class="LineNr"> 28 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
+<a name="L29"></a><span id="L29" class="LineNr"> 29 </span><span class="Normal">case</span> JUMP: <span class="Delimiter">{</span>
+<a name="L30"></a><span id="L30" class="LineNr"> 30 </span>  assert<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>initialized<span class="Delimiter">);</span>
+<a name="L31"></a><span id="L31" class="LineNr"> 31 </span>  current_step_index<span class="Delimiter">()</span> += ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span>+<span class="Constant">1</span><span class="Delimiter">;</span>
+<a name="L32"></a><span id="L32" class="LineNr"> 32 </span>  trace<span class="Delimiter">(</span><span class="Constant">9998</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;jumping to instruction &quot;</span> &lt;&lt; current_step_index<span class="Delimiter">()</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L33"></a><span id="L33" class="LineNr"> 33 </span>  <span class="Identifier">continue</span><span class="Delimiter">;</span>  <span class="Comment">// skip rest of this instruction</span>
+<a name="L34"></a><span id="L34" class="LineNr"> 34 </span><span class="Delimiter">}</span>
+<a name="L35"></a><span id="L35" class="LineNr"> 35 </span>
+<a name="L36"></a><span id="L36" class="LineNr"> 36 </span><span class="Comment">//: special type to designate jump targets</span>
+<a name="L37"></a><span id="L37" class="LineNr"> 37 </span><span class="Delimiter">:(before &quot;End Mu Types Initialization&quot;)</span>
+<a name="L38"></a><span id="L38" class="LineNr"> 38 </span>put<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;offset&quot;</span><span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">);</span>
+<a name="L39"></a><span id="L39" class="LineNr"> 39 </span>
+<a name="L40"></a><span id="L40" class="LineNr"> 40 </span><span class="Delimiter">:(scenario jump_backward)</span>
+<a name="L41"></a><span id="L41" class="LineNr"> 41 </span><span class="muRecipe">def</span> main [
+<a name="L42"></a><span id="L42" class="LineNr"> 42 </span>  jump <span class="Constant">1:offset</span>  <span class="Comment"># 0 -+</span>
+<a name="L43"></a><span id="L43" class="LineNr"> 43 </span>  jump <span class="Constant">3:offset</span>  <span class="Comment">#    |   +-+ 1</span>
+<a name="L44"></a><span id="L44" class="LineNr"> 44 </span>                 <span class="Comment">#   \/  /\ |</span>
+<a name="L45"></a><span id="L45" class="LineNr"> 45 </span>  jump <span class="Constant">-2:offset</span> <span class="Comment">#  2 +--&gt;+ |</span>
+<a name="L46"></a><span id="L46" class="LineNr"> 46 </span>]                <span class="Comment">#         \/ 3</span>
+<a name="L47"></a><span id="L47" class="LineNr"> 47 </span><span class="traceContains">+run: jump {1: &quot;offset&quot;}</span>
+<a name="L48"></a><span id="L48" class="LineNr"> 48 </span><span class="traceContains">+run: jump {-2: &quot;offset&quot;}</span>
+<a name="L49"></a><span id="L49" class="LineNr"> 49 </span><span class="traceContains">+run: jump {3: &quot;offset&quot;}</span>
+<a name="L50"></a><span id="L50" class="LineNr"> 50 </span>
+<a name="L51"></a><span id="L51" class="LineNr"> 51 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
+<a name="L52"></a><span id="L52" class="LineNr"> 52 </span>JUMP_IF<span class="Delimiter">,</span>
+<a name="L53"></a><span id="L53" class="LineNr"> 53 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
+<a name="L54"></a><span id="L54" class="LineNr"> 54 </span>put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;jump-if&quot;</span><span class="Delimiter">,</span> JUMP_IF<span class="Delimiter">);</span>
+<a name="L55"></a><span id="L55" class="LineNr"> 55 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
+<a name="L56"></a><span id="L56" class="LineNr"> 56 </span><span class="Normal">case</span> JUMP_IF: <span class="Delimiter">{</span>
+<a name="L57"></a><span id="L57" class="LineNr"> 57 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<a name="L58"></a><span id="L58" class="LineNr"> 58 </span>    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'jump-if' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L59"></a><span id="L59" class="LineNr"> 59 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L60"></a><span id="L60" class="LineNr"> 60 </span>  <span class="Delimiter">}</span>
+<a name="L61"></a><span id="L61" class="LineNr"> 61 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_scalar<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
+<a name="L62"></a><span id="L62" class="LineNr"> 62 </span>    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'jump-if' requires a boolean for its first ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L63"></a><span id="L63" class="LineNr"> 63 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L64"></a><span id="L64" class="LineNr"> 64 </span>  <span class="Delimiter">}</span>
+<a name="L65"></a><span id="L65" class="LineNr"> 65 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_literal<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
+<a name="L66"></a><span id="L66" class="LineNr"> 66 </span>    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'jump-if' requires a label or offset for its second ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L67"></a><span id="L67" class="LineNr"> 67 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L68"></a><span id="L68" class="LineNr"> 68 </span>  <span class="Delimiter">}</span>
+<a name="L69"></a><span id="L69" class="LineNr"> 69 </span>  <span class="Comment">// End JUMP_IF Checks</span>
+<a name="L70"></a><span id="L70" class="LineNr"> 70 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L71"></a><span id="L71" class="LineNr"> 71 </span><span class="Delimiter">}</span>
+<a name="L72"></a><span id="L72" class="LineNr"> 72 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
+<a name="L73"></a><span id="L73" class="LineNr"> 73 </span><span class="Normal">case</span> JUMP_IF: <span class="Delimiter">{</span>
+<a name="L74"></a><span id="L74" class="LineNr"> 74 </span>  assert<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>initialized<span class="Delimiter">);</span>
+<a name="L75"></a><span id="L75" class="LineNr"> 75 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> <span class="Delimiter">{</span>
+<a name="L76"></a><span id="L76" class="LineNr"> 76 </span>    trace<span class="Delimiter">(</span><span class="Constant">9998</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;jump-if fell through&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L77"></a><span id="L77" class="LineNr"> 77 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L78"></a><span id="L78" class="LineNr"> 78 </span>  <span class="Delimiter">}</span>
+<a name="L79"></a><span id="L79" class="LineNr"> 79 </span>  current_step_index<span class="Delimiter">()</span> += ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span>+<span class="Constant">1</span><span class="Delimiter">;</span>
+<a name="L80"></a><span id="L80" class="LineNr"> 80 </span>  trace<span class="Delimiter">(</span><span class="Constant">9998</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;jumping to instruction &quot;</span> &lt;&lt; current_step_index<span class="Delimiter">()</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L81"></a><span id="L81" class="LineNr"> 81 </span>  <span class="Identifier">continue</span><span class="Delimiter">;</span>  <span class="Comment">// skip rest of this instruction</span>
+<a name="L82"></a><span id="L82" class="LineNr"> 82 </span><span class="Delimiter">}</span>
+<a name="L83"></a><span id="L83" class="LineNr"> 83 </span>
+<a name="L84"></a><span id="L84" class="LineNr"> 84 </span><span class="Delimiter">:(scenario jump_if)</span>
+<a name="L85"></a><span id="L85" class="LineNr"> 85 </span><span class="muRecipe">def</span> main [
+<a name="L86"></a><span id="L86" class="LineNr"> 86 </span>  jump-<span class="Normal">if</span> <span class="Constant">999</span><span class="Delimiter">,</span> <span class="Constant">1:offset</span>
+<a name="L87"></a><span id="L87" class="LineNr"> 87 </span>  <span class="Constant">123</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">1</span>
+<a name="L88"></a><span id="L88" class="LineNr"> 88 </span>]
+<a name="L89"></a><span id="L89" class="LineNr"> 89 </span><span class="traceContains">+run: jump-if {999: &quot;literal&quot;}, {1: &quot;offset&quot;}</span>
+<a name="L90"></a><span id="L90" class="LineNr"> 90 </span><span class="traceContains">+run: jumping to instruction 2</span>
+<a name="L91"></a><span id="L91" class="LineNr"> 91 </span><span class="traceAbsent">-run: {1: &quot;number&quot;} &lt;- copy {1: &quot;literal&quot;}</span>
+<a name="L92"></a><span id="L92" class="LineNr"> 92 </span><span class="traceAbsent">-mem: storing 1 in location 123</span>
+<a name="L93"></a><span id="L93" class="LineNr"> 93 </span>
+<a name="L94"></a><span id="L94" class="LineNr"> 94 </span><span class="Delimiter">:(scenario jump_if_fallthrough)</span>
+<a name="L95"></a><span id="L95" class="LineNr"> 95 </span><span class="muRecipe">def</span> main [
+<a name="L96"></a><span id="L96" class="LineNr"> 96 </span>  jump-<span class="Normal">if</span> <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">1:offset</span>
+<a name="L97"></a><span id="L97" class="LineNr"> 97 </span>  <span class="Constant">123</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">1</span>
+<a name="L98"></a><span id="L98" class="LineNr"> 98 </span>]
+<a name="L99"></a><span id="L99" class="LineNr"> 99 </span><span class="traceContains">+run: jump-if {0: &quot;literal&quot;}, {1: &quot;offset&quot;}</span>
+<a name="L100"></a><span id="L100" class="LineNr">100 </span><span class="traceContains">+run: jump-if fell through</span>
+<a name="L101"></a><span id="L101" class="LineNr">101 </span><span class="traceContains">+run: {123: &quot;number&quot;} &lt;- copy {1: &quot;literal&quot;}</span>
+<a name="L102"></a><span id="L102" class="LineNr">102 </span><span class="traceContains">+mem: storing 1 in location 123</span>
+<a name="L103"></a><span id="L103" class="LineNr">103 </span>
+<a name="L104"></a><span id="L104" class="LineNr">104 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
+<a name="L105"></a><span id="L105" class="LineNr">105 </span>JUMP_UNLESS<span class="Delimiter">,</span>
+<a name="L106"></a><span id="L106" class="LineNr">106 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
+<a name="L107"></a><span id="L107" class="LineNr">107 </span>put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;jump-unless&quot;</span><span class="Delimiter">,</span> JUMP_UNLESS<span class="Delimiter">);</span>
+<a name="L108"></a><span id="L108" class="LineNr">108 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
+<a name="L109"></a><span id="L109" class="LineNr">109 </span><span class="Normal">case</span> JUMP_UNLESS: <span class="Delimiter">{</span>
+<a name="L110"></a><span id="L110" class="LineNr">110 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<a name="L111"></a><span id="L111" class="LineNr">111 </span>    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'jump-unless' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L112"></a><span id="L112" class="LineNr">112 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L113"></a><span id="L113" class="LineNr">113 </span>  <span class="Delimiter">}</span>
+<a name="L114"></a><span id="L114" class="LineNr">114 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_scalar<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
+<a name="L115"></a><span id="L115" class="LineNr">115 </span>    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'jump-unless' requires a boolean for its first ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L116"></a><span id="L116" class="LineNr">116 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L117"></a><span id="L117" class="LineNr">117 </span>  <span class="Delimiter">}</span>
+<a name="L118"></a><span id="L118" class="LineNr">118 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_literal<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
+<a name="L119"></a><span id="L119" class="LineNr">119 </span>    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'jump-unless' requires a label or offset for its second ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L120"></a><span id="L120" class="LineNr">120 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L121"></a><span id="L121" class="LineNr">121 </span>  <span class="Delimiter">}</span>
+<a name="L122"></a><span id="L122" class="LineNr">122 </span>  <span class="Comment">// End JUMP_UNLESS Checks</span>
+<a name="L123"></a><span id="L123" class="LineNr">123 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L124"></a><span id="L124" class="LineNr">124 </span><span class="Delimiter">}</span>
+<a name="L125"></a><span id="L125" class="LineNr">125 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
+<a name="L126"></a><span id="L126" class="LineNr">126 </span><span class="Normal">case</span> JUMP_UNLESS: <span class="Delimiter">{</span>
+<a name="L127"></a><span id="L127" class="LineNr">127 </span>  assert<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>initialized<span class="Delimiter">);</span>
+<a name="L128"></a><span id="L128" class="LineNr">128 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> <span class="Delimiter">{</span>
+<a name="L129"></a><span id="L129" class="LineNr">129 </span>    trace<span class="Delimiter">(</span><span class="Constant">9998</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;jump-unless fell through&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L130"></a><span id="L130" class="LineNr">130 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L131"></a><span id="L131" class="LineNr">131 </span>  <span class="Delimiter">}</span>
+<a name="L132"></a><span id="L132" class="LineNr">132 </span>  current_step_index<span class="Delimiter">()</span> += ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span>+<span class="Constant">1</span><span class="Delimiter">;</span>
+<a name="L133"></a><span id="L133" class="LineNr">133 </span>  trace<span class="Delimiter">(</span><span class="Constant">9998</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;jumping to instruction &quot;</span> &lt;&lt; current_step_index<span class="Delimiter">()</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L134"></a><span id="L134" class="LineNr">134 </span>  <span class="Identifier">continue</span><span class="Delimiter">;</span>  <span class="Comment">// skip rest of this instruction</span>
+<a name="L135"></a><span id="L135" class="LineNr">135 </span><span class="Delimiter">}</span>
+<a name="L136"></a><span id="L136" class="LineNr">136 </span>
+<a name="L137"></a><span id="L137" class="LineNr">137 </span><span class="Delimiter">:(scenario jump_unless)</span>
+<a name="L138"></a><span id="L138" class="LineNr">138 </span><span class="muRecipe">def</span> main [
+<a name="L139"></a><span id="L139" class="LineNr">139 </span>  jump-unless <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">1:offset</span>
+<a name="L140"></a><span id="L140" class="LineNr">140 </span>  <span class="Constant">123</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">1</span>
+<a name="L141"></a><span id="L141" class="LineNr">141 </span>]
+<a name="L142"></a><span id="L142" class="LineNr">142 </span><span class="traceContains">+run: jump-unless {0: &quot;literal&quot;}, {1: &quot;offset&quot;}</span>
+<a name="L143"></a><span id="L143" class="LineNr">143 </span><span class="traceContains">+run: jumping to instruction 2</span>
+<a name="L144"></a><span id="L144" class="LineNr">144 </span><span class="traceAbsent">-run: {123: &quot;number&quot;} &lt;- copy {1: &quot;literal&quot;}</span>
+<a name="L145"></a><span id="L145" class="LineNr">145 </span><span class="traceAbsent">-mem: storing 1 in location 123</span>
+<a name="L146"></a><span id="L146" class="LineNr">146 </span>
+<a name="L147"></a><span id="L147" class="LineNr">147 </span><span class="Delimiter">:(scenario jump_unless_fallthrough)</span>
+<a name="L148"></a><span id="L148" class="LineNr">148 </span><span class="muRecipe">def</span> main [
+<a name="L149"></a><span id="L149" class="LineNr">149 </span>  jump-unless <span class="Constant">999</span><span class="Delimiter">,</span> <span class="Constant">1:offset</span>
+<a name="L150"></a><span id="L150" class="LineNr">150 </span>  <span class="Constant">123</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">1</span>
+<a name="L151"></a><span id="L151" class="LineNr">151 </span>]
+<a name="L152"></a><span id="L152" class="LineNr">152 </span><span class="traceContains">+run: jump-unless {999: &quot;literal&quot;}, {1: &quot;offset&quot;}</span>
+<a name="L153"></a><span id="L153" class="LineNr">153 </span><span class="traceContains">+run: jump-unless fell through</span>
+<a name="L154"></a><span id="L154" class="LineNr">154 </span><span class="traceContains">+run: {123: &quot;number&quot;} &lt;- copy {1: &quot;literal&quot;}</span>
+<a name="L155"></a><span id="L155" class="LineNr">155 </span><span class="traceContains">+mem: storing 1 in location 123</span>
 </pre>
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