fix test and remove hack for -

lib/vm/values.rb

@@ -21,9 +21,6 @@ module Vm
   # just a base class for data. not sure how this will be usefull (may just have read too much llvm)
   class Value < Code
 
-    def class_for clazz
-      CMachine.instance.class_for(clazz)
-    end
     # part of the dsl, ie serves to make code like  value.is a + b     work
     # ie we save the receier as the result into the instruction and pass that back
     def is instruction
@@ -76,11 +73,11 @@ module Vm
     # but for constants we have to create instruction first (mov)
     def assign other
       other = Vm::IntegerConstant.new(other) if other.is_a? Fixnum
-      if other.is_a?(Vm::IntegerConstant)
+      if other.is_a?(Vm::IntegerConstant) or other.is_a?(Vm::Integer)
         class_for(MoveInstruction).new( self , other , :opcode => :mov)
       elsif other.is_a?(Vm::StringConstant) # pc relative addressing
         class_for(LogicInstruction).new(self , other , nil , opcode: :add)
-      else 
+      else
         other.assign(self)
       end
     end
@@ -88,12 +85,14 @@ module Vm
     def less_or_equal block , right
       CMachine.instance.integer_less_or_equal block , self , right
     end
-
+    def == other
+      code = class_for(CompareInstruction).new(self , other , opcode: :cmp)
+    end
     def + other
       class_for(LogicInstruction).new(nil , self , other , opcode: :add)
     end
     def - other
-      class_for(LogicInstruction).new(nil , self , other , opcode:  :sub , update_status: 1 )
+      class_for(LogicInstruction).new(nil , self , other , opcode:  :sub )#, update_status: 1 )
     end
     def plus block , first , right
       CMachine.instance.integer_plus block , self , first , right

test/arm/test_small_program.rb

@@ -18,7 +18,7 @@ class TestSmallProg < MiniTest::Test
     r0 = Vm::Integer.new(0)
     m.r0 = 5                #1
     m << s
-    s.r0 = r0 - 1      #2
+    s.r0 = (r0 - 1).set_update_status      #2
     s.bne  s          #3
     @should = [0,176,160,227,5,0,160,227,1,0,80,226,253,255,255,26,1,112,160,227,0,0,0,239]
     write "loop"