add assembler

getting the layers better

lib/risc.rb

@@ -26,6 +26,7 @@ require "parfait"
 require_relative "risc/parfait_adapter"
 require_relative "risc/machine"
 require_relative "risc/method_compiler"
+require_relative "risc/assembler"
 
 class Fixnum
   def fits_u8?

lib/risc/assembler.rb

@@ -0,0 +1,11 @@
+module Risc
+  class Assembler
+    attr_reader :method , :instructions
+    def initialize( method , instructions)
+      @method = method
+      @instructions = instructions
+      total = instructions.total_byte_length / 4 + 1
+      method.binary.extend_to( total )
+    end
+  end
+end