--- np2/io/epsonio.c	2004/01/05 06:05:11	1.2
+++ np2/io/epsonio.c	2004/01/05 06:07:26	1.3
@@ -36,6 +36,14 @@ static void IOOUTCALL epsonio_o043d(UINT
 				bankselect();
 			}
 			break;
+
+		case 0x10:
+			CPU_ITFBANK = 1;
+			break;
+
+		case 0x12:
+			CPU_ITFBANK = 0;
+			break;
 	}
 }