--- np2/io/gdc.c	2003/12/12 01:04:40	1.9
+++ np2/io/gdc.c	2004/01/13 05:30:58	1.11
@@ -335,11 +335,13 @@ static void IOOUTCALL gdc_o6a(UINT port,
 	else {
 		switch(dat) {
 			case 0x40:
+			case 0x80:					// EPSON?
 				gdc.display &= ~1;
 				gdcs.textdisp |= GDCSCRN_EXT;
 				break;
 
 			case 0x41:
+			case 0x81:					// EPSON?
 				gdc.display |= 1;
 				gdcs.textdisp |= GDCSCRN_EXT;
 				break;
@@ -376,7 +378,7 @@ static REG8 IOINPCALL gdc_i60(UINT port)
 	ret = 0x80 | gdc.vsync;		// | m_drawing;
 	remain = nevent_getremain(NEVENT_FLAMES);
 	if (remain >= 0) {
-		if ((remain % pc.raster) < pc.hsync) {
+		if ((remain % pccore.raster) < pccore.hsync) {
 			ret |= 0x40;
 		}
 	}
@@ -543,7 +545,7 @@ static REG8 IOINPCALL gdc_ia0(UINT port)
 	ret = 0x80 | gdc.vsync | gdc.s_drawing;
 	remain = nevent_getremain(NEVENT_FLAMES);
 	if (remain >= 0) {
-		if ((remain % pc.raster) < (pc.hsync)) {
+		if ((remain % pccore.raster) < (pccore.hsync)) {
 			ret |= 0x40;
 		}
 	}