pass return integer back out through exit

for testing of binaries later (and off course general correctness)
Some tests were using the fact that the interpreter was used, changed those to return ints rather than strings

test/risc/interpreter/assign/test_assign_local.rb

@@ -13,9 +13,9 @@ module Risc
       #show_main_ticks # get output of what is
       check_main_chain [LoadConstant, SlotToReg, RegToSlot, SlotToReg, SlotToReg,
              RegToSlot, SlotToReg, SlotToReg, RegToSlot, SlotToReg,
-             SlotToReg, SlotToReg, FunctionReturn, Transfer, Syscall,
-             NilClass]
-      assert_equal 15 , get_return.value
+             SlotToReg, SlotToReg, FunctionReturn, SlotToReg, SlotToReg,
+             Branch, Transfer, Syscall, NilClass]
+      assert_equal 15 , get_return
     end
 
     def test_call_main
@@ -36,11 +36,11 @@ module Risc
       assert_equal Fixnum , link.class
     end
     def test_transfer
-      transfer = main_ticks(14)
+      transfer = main_ticks(17)
       assert_equal Transfer ,  transfer.class
     end
     def test_sys
-      sys = main_ticks(15)
+      sys = main_ticks(18)
       assert_equal Syscall ,  sys.class
     end
   end