Implemented the EN vcmp instruction

Core/MIPS/MIPSIntVFPU.cpp

@@ -1124,8 +1124,9 @@ namespace MIPSInt
 			case VC_GE: c = s[i] >= t[i]; break;
 			case VC_NZ: c = s[i] != 0; break;
 			case VC_ES: c = (s[i] != s[i]) || (s[i] == std::numeric_limits<float>::infinity()); break;   // Tekken Dark Resurrection
+			case VC_EN: c = isnan(s[i]); break;
 			default:
-				_dbg_assert_msg_(CPU,0,"Unsupported vcmp condition code"); //, cond);
+				_dbg_assert_msg_(CPU,0,"Unsupported vcmp condition code %d", cond);
 				return;
 			}
 			cc |= (c<<i);