Manage main label not found

ChangeLog

+2003-06-29  Benot Perrot  <benoit@lrde.epita.fr>
+
+	* src/vm/virtual_machine.hh: Display a dedicated error message 
+	when the main label can not be found.
+
 2003-06-29  Benot Perrot  <benoit@lrde.epita.fr>
 
 	* dev/mipsy.xml, dev/mipsy.py:

src/vm/virtual_machine.hh

@@ -53,8 +53,13 @@ namespace vm
       precondition(_program);
 
       const inst::TextSection& text_section = (*_program).text_section ();
+      if (! text_section.has_label(inst::Label("main")))
+	{
+	  std::cerr << "No `main' label in assembly file." << std::endl;
+	  return;
+	}
       cpu.set_pc(text_section.get_offset(inst::Label("main")));
-
+      
       _halt = false;
       while (!_halt)
 	{