increment implementation (start) and more splitting

test/arm/test_memory.rb

@@ -0,0 +1,33 @@
+require_relative 'helper'
+
+class TestMemory < MiniTest::Test
+  include ArmHelper
+
+  def test_ldr
+    code = @machine.ldr  :r0, right: :r0
+    assert_code code, :ldr ,  [0x00,0x00,0x90,0xe5] #e5 90 00 00
+  end
+  def test_ldr2
+    code = @machine.ldr  :r0, right: :r0 , :offset =>  4
+    assert_code code, :ldr ,  [0x04,0x00,0x90,0xe5] #e5 90 00 04
+  end
+  def test_ldrb
+    code = @machine.ldrb  :r0, right: :r0
+    assert_code code, :ldrb ,  [0x00,0x00,0xd0,0xe5] #e5 d0 00 00
+  end
+
+  def test_str
+    code = @machine.str  :r0, right: :r1
+    assert_code code, :str ,  [0x00,0x00,0x81,0xe5] #e5 81 00 00
+  end
+
+  def test_strb_add
+    code = @machine.strb  :r0, right: :r1 , :offset =>  1 , flaggie: 1
+    assert_code code, :strb ,  [0x01,0x00,0xc1,0xe4] #e4 c1 00 01
+  end
+
+  def test_strb
+    code = @machine.strb  :r0, right: :r0
+    assert_code code, :strb ,  [0x00,0x00,0xc0,0xe5] #e5 c0 00 00
+  end
+end