--- np2/bios/bios.c	2004/02/20 08:32:23	1.43
+++ np2/bios/bios.c	2004/02/26 08:46:55	1.46
@@ -282,19 +282,42 @@ static void bios_boot(void) {
 	}
 }
 
+// テスト(こんなんじゃだめぽ
+static void bios0x1f(void) {
+
+	BYTE	work[256];
+	UINT32	src;
+	UINT32	dst;
+	UINT	leng;
+	UINT	l;
+
+	if (CPU_AH == 0x90) {
+		i286_memstr_read(CPU_ES, CPU_BX + 0x10, work, 0x10);
+		src = work[2] + (work[3] << 8) + (work[4] << 16) + CPU_SI;
+		dst = work[8] + (work[9] << 8) + (work[10] << 16) + CPU_DI;
+		leng = LOW16(CPU_CX - 1) + 1;
+		TRACEOUT(("src:%08x dst:%08x leng:%08x", src, dst, leng));
+		do {
+			l = min(leng, 256);
+			i286_memx_read(src, work, l);
+			i286_memx_write(dst, work, l);
+			src += l;
+			dst += l;
+			leng -= l;
+		} while(leng);
+	}
+	else {
+		TRACEOUT(("unsupport protect bios AH=%.2x", CPU_AH));
+	}
+}
 
 UINT MEMCALL biosfunc(UINT32 adrs) {
 
 	UINT16	bootseg;
 
 	if ((CPU_ITFBANK) && (adrs >= 0xf8000) && (adrs < 0x100000)) {
-#if 1					// for epson ITF
+		// for epson ITF
 		return(0);
-#else
-		CPU_IP--;
-		CPU_REMCLOCK = -1;
-		return(1);
-#endif
 	}
 
 	switch(adrs) {
@@ -368,7 +391,7 @@ UINT MEMCALL biosfunc(UINT32 adrs) {
 
 		case BIOS_BASE + BIOSOFST_1f:
 			CPU_REMCLOCK -= 200;
-			TRACEOUT(("unsupport protect bios"));
+			bios0x1f();
 			return(1);
 
 		case BIOS_BASE + BIOSOFST_WAIT:
@@ -442,9 +465,17 @@ UINT MEMCALL biosfunc(UINT32 adrs) {
 			return(0);
 	}
 
-	if ((adrs >= 0xf9a00) && (adrs < 0x0f9a24)) {
-		if (!(adrs & 1)) {
-			bios_lio((BYTE)((adrs - 0xf9a00) >> 1));
+	if ((adrs >= 0xf9a00) && (adrs < 0x0f9a44)) {
+		if (!(adrs & 3)) {
+			CPU_REMCLOCK -= 500;
+			bios_lio((REG8)((adrs - 0xf9a00) >> 2));
+		}
+		else {
+			if (nevent_iswork(NEVENT_GDCSLAVE)) {
+				CPU_IP--;
+				CPU_REMCLOCK = -1;
+				return(1);
+			}
 		}
 		return(0);
 	}