movs is not allowed into pc

Illegal instruction it says
Otherwise the status update is nice (for branches) and we’ll keep

test/arm/helper.rb

@@ -31,7 +31,9 @@ module Arm
       assert_equal should.length , binary.length , "code length wrong for #{code.inspect}"
       index = 0
       binary.each_byte do |byte |
-        assert_equal should[index] , byte , "byte #{index} 0x#{should[index].to_s(16)} != 0x#{byte.to_s(16)}"
+        msg = "byte #{index} 0x#{should[index].to_s(16)} != 0x#{byte.to_s(16)} | "
+        msg += "#{should[index].to_s(2)} != #{byte.to_s(2)}"
+        assert_equal should[index] , byte , msg
         index += 1
       end
     end

test/arm/test_move.rb

@@ -10,7 +10,11 @@ module Arm
     end
     def test_mov_pc
       code = @machine.mov  :pc,  5
-      assert_code code , :mov , [0x05,0xf0,0xb0,0xe3] #e3 b0 f0 06
+      assert_code code , :mov , [0x05,0xf0,0xa0,0xe3] #e3 a0 f0 06
+    end
+    def test_mov_pc_r1
+      code = @machine.mov  :pc,  :r1
+      assert_code code , :mov , [0x01,0xf0,0xa0,0xe1] #e1 a0 f0 01
     end
     def test_mov_max_128
       code = @machine.mov  :r1,  128