--- np2/vram/scrndraw.c	2004/02/09 20:39:39	1.5
+++ np2/vram/scrndraw.c	2005/02/04 05:32:24	1.7
@@ -53,6 +53,7 @@ static BYTE rasterdraw(SDRAWFN sdrawfn, 
 	int			nextupdate;
 	int			y;
 
+	TRACEOUT(("rasterdraw: maxy = %d", maxy));
 	CopyMemory(pal, palevent.pal, sizeof(pal));
 	clock = maxy;
 	clock += 2;
@@ -94,7 +95,7 @@ static BYTE rasterdraw(SDRAWFN sdrawfn, 
 		}
 		clock -= 2 * gdc.rasterclock;
 	}
-	if (y < maxy) {
+	if (nextupdate < maxy) {
 		if (!(np2cfg.LCD_MODE & 1)) {
 			pal_makeanalog(pal, 0xffff);
 		}
@@ -142,6 +143,12 @@ const SDRAWFN	*sdrawfn;
 	if (surf == NULL) {
 		goto sddr_exit1;
 	}
+#if defined(SUPPORT_PC9821)
+	if (gdc.analog & 2) {
+		sdrawfn = sdraw_getproctblex(surf);
+	}
+	else
+#endif
 	sdrawfn = sdraw_getproctbl(surf);
 	if (sdrawfn == NULL) {
 		goto sddr_exit2;
@@ -149,6 +156,12 @@ const SDRAWFN	*sdrawfn;
 
 	bit = 0;
 	if (gdc.mode1 & 0x80) {						// ver0.28
+#if defined(SUPPORT_PC9821)
+		if ((gdc.analog & 6) == 6) {
+			bit |= 0x01;
+		}
+		else
+#endif
 		if (gdcs.grphdisp & 0x80) {
 			bit |= (1 << gdcs.disp);
 		}
@@ -167,12 +180,18 @@ const SDRAWFN	*sdrawfn;
 		}
 	}
 	height = surf->height;
+	do {
+#if defined(SUPPORT_PC9821)
+		if (gdc.analog & 2) {
+			break;
+		}
+#endif
 #if defined(SUPPORT_CRT15KHZ)
-	if (gdc.crt15khz & 2) {
-		sdrawfn += 12;
-		height >>= 1;
-	}
-	else {
+		if (gdc.crt15khz & 2) {
+			sdrawfn += 12;
+			height >>= 1;
+			break;
+		}
 #endif
 		if (gdc.mode1 & 0x10) {
 			sdrawfn += 4;
@@ -180,9 +199,7 @@ const SDRAWFN	*sdrawfn;
 				sdrawfn += 4;
 			}
 		}
-#if defined(SUPPORT_CRT15KHZ)
-	}
-#endif
+	} while(0);
 	switch(bit & 7) {
 		case 1:								// grph1
 			sdrawfn += 2;
@@ -217,7 +234,7 @@ const SDRAWFN	*sdrawfn;
 	sdraw.y = 0;
 	sdraw.xalign = surf->xalign;
 	sdraw.yalign = surf->yalign;
-	if ((!gdc.analog) || (palevent.events >= PALEVENTMAX)) {
+	if (((gdc.analog & 3) != 1) || (palevent.events >= PALEVENTMAX)) {
 		(*(*sdrawfn))(&sdraw, height);
 	}
 	else {