--- np2/io/crtc.c	2004/03/14 23:45:44	1.5
+++ np2/io/crtc.c	2004/03/19 00:30:01	1.6
@@ -82,7 +82,11 @@ void crtc_reset(void) {
 
 	ZeroMemory(&grcg, sizeof(grcg));
 	ZeroMemory(&crtc, sizeof(crtc));
+#if defined(SUPPORT_PC9821)
+	grcg.chip = 3;							// PC-9821は EGC必須
+#else
 	grcg.chip = np2cfg.grcg & 3;			// GRCG動作のコピー
+#endif
 	crtc_biosreset();
 }