[pypy-commit] extradoc extradoc: one more slide

[antocuni]

Author: Antonio Cuni <anto.cuni at gmail.com>
Branch: extradoc
Changeset: r4235:c51f91f2b591
Date: 2012-06-30 21:36 +0200
http://bitbucket.org/pypy/extradoc/changeset/c51f91f2b591/

Log:	one more slide

diff --git a/talk/ep2012/jit/talk/talk.rst b/talk/ep2012/jit/talk/talk.rst
--- a/talk/ep2012/jit/talk/talk.rst
+++ b/talk/ep2012/jit/talk/talk.rst
@@ -121,3 +121,97 @@
 .. animage:: diagrams/tracing-phases-p*.pdf
    :align: center
    :scale: 100%
+
+
+Tracing Example (1)
+--------------------
+
+.. we use java instead of RPython to avoid confusion with applevel Python
+
+
+|scriptsize|
+|example<| |small| java |end_small| |>|
+
+.. sourcecode:: java
+
+    interface Operation {
+        int DoSomething(int x);
+    }
+    class IncrOrDecr implements Operation {
+        public int DoSomething(int x) { 
+            if (x < 0) return x-1;
+            else       return x+1;
+        }
+    }
+    class tracing {
+        public static void main(String argv[]) {
+            int N = 100;
+            int i = 0;
+            Operation op = new IncrOrDecr();
+            while (i < N) {
+                i = op.DoSomething(i);
+            }
+            System.out.println(i);
+        }
+    }
+
+|end_example|
+|end_scriptsize|
+
+
+Tracing Example (2)
+--------------------
+
+|scriptsize|
+|column1|
+|example<| |small| Java bytecode |end_small| |>|
+
+.. sourcecode:: java
+
+  class IncrOrDecr {
+    ...
+    public DoSomething(I)I
+      ILOAD 1
+      IFGE LABEL_0
+      ILOAD 1
+      ICONST_1
+      ISUB
+      IRETURN
+     LABEL_0
+      ILOAD 1
+      ICONST_1
+      IADD
+      IRETURN
+  }
+
+|end_example|
+
+|pause|
+
+|column2|
+|example<| |small| Java bytecode |end_small| |>|
+
+.. sourcecode:: java
+
+  class tracing {
+    ...
+    public static main(
+       [Ljava/lang/String;)V
+      ...
+     LABEL_0
+      ILOAD 2
+      ILOAD 1
+      IF_ICMPGE LABEL_1
+      ALOAD 3
+      ILOAD 2
+      INVOKEINTERFACE 
+        Operation.DoSomething (I)I
+      ISTORE 2
+      GOTO LABEL_0
+     LABEL_1
+      ...
+  }
+
+|end_example|
+|end_columns|
+|end_scriptsize|