add initial jump instruction

lib/arm/arm_machine.rb

@@ -119,3 +119,4 @@ require_relative "passes/get_implementation"
 require_relative "passes/set_implementation"
 require_relative "passes/return_implementation"
 require_relative "passes/constant_implementation"
+require_relative "passes/main_implementation"

lib/arm/passes/main_implementation.rb

@@ -0,0 +1,15 @@
+module Arm
+
+  # "Boot" the register machine at the function given
+
+  class MainImplementation
+    def run block
+      block.codes.dup.each do |code|
+        next unless code.is_a? Register::RegisterMain
+        call = ArmMachine.b( code.method )
+        block.replace(code , call )
+      end
+    end
+  end
+  Virtual::BootSpace.space.add_pass "Arm::MainImplementation"
+end