fix TruthCheck

mixing up the false and true, such a basic human mistake

test/mom/test_if_else.rb

@@ -7,9 +7,9 @@ module Risc
     def setup
       super
       @input = "if(@a) ; arg = 5 ; else; arg = 6; end"
-      @expect = [SlotToReg, SlotToReg, LoadConstant, OperatorInstruction, IsNotZero ,
-                 LoadConstant, OperatorInstruction, IsNotZero, Label, LoadConstant ,
-                 SlotToReg, RegToSlot, Branch, Label, LoadConstant ,
+      @expect = [SlotToReg, SlotToReg, LoadConstant, OperatorInstruction, IsZero,
+                 LoadConstant, OperatorInstruction, IsZero, Label, LoadConstant,
+                 SlotToReg, RegToSlot, Branch, Label, LoadConstant,
                  SlotToReg, RegToSlot, Label]
     end
 

test/mom/test_if_no_else.rb

@@ -7,8 +7,8 @@ module Risc
     def setup
       super
       @input = "if(@a) ; arg = 5 ; end"
-      @expect = [SlotToReg, SlotToReg, LoadConstant, OperatorInstruction, IsNotZero ,
-                 LoadConstant, OperatorInstruction, IsNotZero, Label, LoadConstant ,
+      @expect = [SlotToReg, SlotToReg, LoadConstant, OperatorInstruction, IsZero,
+                 LoadConstant, OperatorInstruction, IsZero, Label, LoadConstant,
                  SlotToReg, RegToSlot, Label]
     end
 
@@ -22,8 +22,9 @@ module Risc
     end
     def test_isnotzero
       produced = produce_body
-      assert_equal IsNotZero , produced.next(4).class
-      assert produced.next(4).label.name.start_with?("false_label")
+      check = produced.next(4)
+      assert_equal IsZero , check.class
+      assert check.label.name.start_with?("merge_label") , check.label.name
     end
     def test_false_label
       produced = produce_body

test/mom/test_while.rb

@@ -7,8 +7,8 @@ module Risc
     def setup
       super
       @input = "while(@a) ; arg = 5 end"
-      @expect = [Label, SlotToReg, SlotToReg, LoadConstant, OperatorInstruction ,
-                 IsNotZero, LoadConstant, OperatorInstruction, IsNotZero, LoadConstant ,
+      @expect = [Label, SlotToReg, SlotToReg, LoadConstant, OperatorInstruction,
+                 IsZero, LoadConstant, OperatorInstruction, IsZero, LoadConstant,
                  SlotToReg, RegToSlot, Branch, Label]
     end
 

test/risc/interpreter/test_simple_if10.rb

@@ -11,15 +11,35 @@ module Risc
 
     def test_if
         #show_main_ticks # get output of what is in main
-        check_main_chain [Label, LoadConstant, LoadConstant, OperatorInstruction, IsNotZero,
-             Label, LoadConstant, RegToSlot, SlotToReg, SlotToReg,
-             RegToSlot, SlotToReg, SlotToReg, FunctionReturn, Transfer,
-             Syscall, NilClass]
+        check_main_chain [Label, LoadConstant, LoadConstant, OperatorInstruction, IsZero,
+             LoadConstant, OperatorInstruction, IsZero, Label, LoadConstant,
+             RegToSlot, SlotToReg, SlotToReg, RegToSlot, SlotToReg,
+             SlotToReg, FunctionReturn, Transfer, Syscall, NilClass]
       assert_equal Parfait::Word , get_return.class
-      assert_equal "else" , get_return.to_string
+      assert_equal "then" , get_return.to_string
+    end
+    def test_load_10
+      load = main_ticks(2)
+      assert_equal LoadConstant , load.class
+      assert_equal 10 , load.constant.value
+    end
+    def test_load_false
+      load = main_ticks(3)
+      assert_equal LoadConstant , load.class
+      assert_equal Parfait::FalseClass , load.constant.class
+    end
+    def test_compare
+      op = main_ticks(4)
+      assert_equal OperatorInstruction , op.class
+      assert_equal :- , op.operator
+    end
+    def test_not_zero
+      check = main_ticks(5)
+      assert_equal IsZero , check.class
+      assert check.label.name.start_with?("false_label") , check.label.name
     end
     def test_exit
-      done = main_ticks(16)
+      done = main_ticks(19)
       assert_equal Syscall ,  done.class
     end
   end