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-rw-r--r--cpp/032trace21
1 files changed, 21 insertions, 0 deletions
diff --git a/cpp/032trace b/cpp/032trace
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--- /dev/null
+++ b/cpp/032trace
@@ -0,0 +1,21 @@
+:(scenario "trace")
+recipe main [
+  trace [foo], [this is a trace in mu]
+]
++foo: this is a trace in mu
+
+:(before "End Globals")
+const int TRACE = 32;
+:(before "End Primitive Recipe Numbers")
+Recipe_number["trace"] = TRACE;
+assert(Next_recipe_number == TRACE);
+Next_recipe_number++;
+:(before "End Primitive Recipe Implementations")
+case TRACE: {
+  assert(isa_literal(instructions[pc].ingredients[0]));
+  string label = instructions[pc].ingredients[0].name;
+  assert(isa_literal(instructions[pc].ingredients[1]));
+  string message = instructions[pc].ingredients[1].name;
+  trace(label) << message;
+  break;
+}