Comments on internal.

ChangeLog

+2003-06-29  Benot Perrot  <benoit@lrde.epita.fr>
+	
+	* doc/mipsy.texi: Add some comments on internal.
+	
 2003-06-29  Benot Perrot  <benoit@lrde.epita.fr>
 
 	* src/vm/virtual_machine.hh: Display a dedicated error message 

doc/mipsy.texi

@@ -93,7 +93,6 @@ Its features are:
 @itemize @minus
 @item
 sufficient support of MIPS instruction set
-
 @item
 illimited registers
 @end itemize
@@ -121,6 +120,7 @@ More information on Python can be found on
 
 @menu
 * Invoking @mipsy{}::
+* Internal of @mipsy{}::
 * The @mipsy{} Language::
 * Copying This Manual::
 * Index::
@@ -128,6 +128,10 @@ More information on Python can be found on
 @detailmenu
  --- The Detailed Node Listing ---
 
+Internal of @mipsy{}
+
+* Steps of @mipsy{} ::
+
 The @mipsy{} Language
 
 * The @mipsy{} supported instruction set::
@@ -140,6 +144,7 @@ Copying This Manual
 @end detailmenu
 @end menu
 
+@c ---------------------------------------------------------
 @node Invoking @mipsy{}
 @chapter Invoking @mipsy{}
 
@@ -166,6 +171,30 @@ Display the version number and exit successfully.
 Document the rest of it.
 @end table
 
+
+@c ---------------------------------------------------------
+@node Internal of @mipsy{}
+@chapter Internal of @mipsy{}
+
+@menu
+* Steps of @mipsy{}::
+@end menu
+
+@node Steps of @mipsy{}
+@section Steps of @mipsy{}
+
+@mipsy{} works in three steps:
+@itemize @minus
+@item it scan and parse the file (lexical and syntaxical analysis), 
+producing an abstract representation of a program;
+@item it resolve the program, checking the existence of labels used and
+computing branch offsets (assembly);
+@item it loads the resolved program in the virtual machine,
+search for an entry point labeled `main' and start execution (execution).
+@end itemize
+
+
+@c ---------------------------------------------------------
 @node The @mipsy{} Language
 @chapter The @mipsy{} Language