lots of changes, created Disassembler class, removed a few globals etc.

tests/initial_base/STRLEN.b

@@ -0,0 +1,35 @@
+/*
+ * Input file	: test\strlen.exe
+ * File type	: EXE
+ */
+
+#include "dcc.h"
+
+
+void proc_1 (int arg0)
+/* Takes 2 bytes of parameters.
+ * High-level language prologue code.
+ * C calling convention.
+ */
+{
+int loc1;
+
+    loc1 = 0;
+    arg0 = (arg0 + 1);
+    while ((*arg0 != 0)) {
+        loc1 = (loc1 + 1);
+        arg0 = (arg0 + 1);
+    }
+}
+
+
+void main ()
+/* Takes no parameters.
+ */
+{
+int loc1;
+
+    loc1 = 404;
+    proc_1 (loc1);
+}
+