named the first intruction constructor argument

lib/vm/block.rb

@@ -66,7 +66,7 @@ module Vm
     # sugar to create instructions easily. Any method with one arg is sent to the machine and the result
     # (hopefully an instruction) added as code
     def method_missing(meth, *args, &block)
-      if args.length == 1
+      if args.length == 2
         add_code CMachine.instance.send(meth , *args)
       else
         super

lib/vm/c_machine.rb

@@ -81,11 +81,11 @@ module Vm
     # defaults gets merged into the instructions options hash, ie passed on to the (machine specific)
     # Instruction constructor and as such can be used to influence that classes behaviour
     def define_instruction(inst , clazz , defaults = {} )
-      create_method(inst) do |options|
+      create_method(inst) do |left , options|
         options = {} if options == nil
         options.merge defaults
         options[:opcode] = inst
-        clazz.new(options)
+        clazz.new(left , options)
       end
     end
 

lib/vm/instruction.rb

@@ -25,7 +25,8 @@ module Vm
     # Make hash attributes to object attributes
     include Support::HashAttributes
     
-    def initialize options
+    def initialize left , options
+      @left = left
       @attributes = options
     end
   end
@@ -43,7 +44,7 @@ module Vm
   class MoveInstruction < Instruction
   end
   class CallInstruction < Instruction
-    def initialize options
+    def initialize left , options
       super
       opcode = @attributes[:opcode].to_s
       if opcode.length == 3 and opcode[0] == "b"