fix register issues, some typos

lib/vm/call_site.rb

@@ -16,7 +16,7 @@ module Vm
         if arg.is_a? IntegerConstant
           Vm::Integer.new(index).load into , arg
         else
-          arg.move( into , index ) if arg.register != index
+          Vm::Integer.new(index).move( into, arg ) if arg.register != index
         end
       end
     end

lib/vm/function.rb

@@ -22,8 +22,8 @@ module Vm
       super()
       @name = name
       @args = args
-      @entry = Core::Kernel::function_entry( Vm::Block.new("#{name}_exit") ,name )
-      @exit =  Core::Kernel::function_exit( Vm::Block.new("#{name}_entry") , name )
+      @entry = Core::Kernel::function_entry( Vm::Block.new("#{name}_entry") ,name )
+      @exit =  Core::Kernel::function_exit( Vm::Block.new("#{name}_exit") , name )
       @body =  Block.new("#{name}_body")
       @reg_count = 0
       branch_body
@@ -47,7 +47,7 @@ module Vm
       @entry.link_at address , context
       address += @entry.length
       @body.link_at(address , context)
-      address += @entry.length
+      address += @body.length
       @exit.link_at(address,context)
     end
     

lib/vm/values.rb

@@ -63,11 +63,11 @@ module Vm
       CMachine.instance.integer_less_or_equal block , self , right
     end
 
-    def plus block , right
-      CMachine.instance.integer_plus block , self , right
+    def plus block , left , right
+      CMachine.instance.integer_plus block , self , left , right
     end
-    def minus block , right
-      CMachine.instance.integer_minus block , self , right
+    def minus block , left , right
+      CMachine.instance.integer_minus block , self , left , right
     end
     
     def load block , right