Correct Z80 NMI assertion and reset test

Z80/Z80.UnitTests/ResetTests.cs

@@ -64,12 +64,12 @@ namespace Z80.UnitTests
         }
 
         [TestMethod]
-        public void Reset_Deasserts_Reset_Pin()
+        public void Reset_Ignores_Reset_Pin()
         {
             this.cpu.LowerRESET(); // asserts RESET — fires LoweredRESET event
             Assert.IsTrue(this.cpu.RESET.Lowered(), "RESET pin must be asserted before step");
             this.cpu.Step();
-            Assert.IsTrue(this.cpu.RESET.Raised(), "HandleRESET must deassert the RESET pin");
+            Assert.IsTrue(this.cpu.RESET.Lowered());
         }
 
         [TestMethod]

Z80/Z80.cs

@@ -202,7 +202,6 @@ namespace Z80
             }
 
             Debug.Assert(this.RESET.Raised());
-            Debug.Assert(this.NMI.Raised());
 
             // ** From the Z80 CPU User Manual
             // When a software HALT instruction is executed, the CPU executes NOPs until an interrupt