Started on Zero Page opcodes and tests.

src/test/java/com/loomcom/symon/CpuTest.java

@@ -346,4 +346,13 @@ public class CpuTest extends TestCase {
 		assertFalse(cpu.getOverflowFlag());
 		assertFalse(cpu.getNegativeFlag());
 	}
+
+	public void testAddress() {
+		assertEquals(0xf1ea, cpu.address(0xea, 0xf1));
+		assertEquals(0x00ea, cpu.address(0xea, 0x00));
+		assertEquals(0xf100, cpu.address(0x00, 0xf1));
+		assertEquals(0x1234, cpu.address(0x34, 0x12));
+		assertEquals(0xffff, cpu.address(0xff, 0xff));
+	}
+
 }