--- np2/bios/bios.c	2004/02/18 02:03:36	1.39
+++ np2/bios/bios.c	2004/02/20 16:20:41	1.44
@@ -83,7 +83,7 @@ static void bios_reinitbyswitch(void) {
 	mem[MEMB_PRXDUPD] = prxdupd;
 
 	biosflag = 0x20;
-	if (pccore.cpumode & CPUMODE_8MHz) {
+	if (pccore.cpumode & CPUMODE_8MHZ) {
 		biosflag |= 0x80;
 	}
 	biosflag |= mem[0xa3fea] & 7;
@@ -122,7 +122,7 @@ static void bios_reinitbyswitch(void) {
 	}
 }
 
-static void bios_vectorset(void) {									// ver0.30
+static void bios_vectorset(void) {
 
 	UINT	i;
 
@@ -162,7 +162,7 @@ static const UINT16 biosoffset[0x20] = {
 			BIOSOFST_1c,	BIOSOFST_IRET,	BIOSOFST_1e,	BIOSOFST_1f};
 
 
-void bios_init(void) {
+void bios_initialize(void) {
 
 	char	path[MAX_PATH];
 	FILEH	fh;
@@ -198,9 +198,9 @@ void bios_init(void) {
 	}
 	CopyMemory(mem + BIOS_BASE + BIOSOFST_PRT, printmain, sizeof(printmain));
 
-	bios_vectorset();												// ver0.29
+	bios_vectorset();
 	if (!biosrom) {
-		lio_init();
+		lio_initialize();
 	}
 
 	SETBIOSMEM16(0xfd800, 0xcb90);
@@ -228,8 +228,8 @@ void bios_init(void) {
 	bios_reinitbyswitch();
 //	mem[MEMB_CRT_STS_FLAG] = 0x84;		// -> bios_screeninit()
 //	mem[MEMB_BIOS_FLAG0] = 0x03;
-//	mem[MEMB_F2DD_MODE] = 0xff;										// ver0.29
-// 	SETBIOSMEM16(MEMW_DISK_EQUIP, 0x0003);							// ver0.29
+//	mem[MEMB_F2DD_MODE] = 0xff;
+// 	SETBIOSMEM16(MEMW_DISK_EQUIP, 0x0003);
 	mem[0x005ae] |= 0x03;											// ver0.31
 
 	CopyMemory(mem + 0x0fde00, keytable[0], 0x300);
@@ -288,16 +288,11 @@ 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) {													// ver0.30
+	switch(adrs) {
 		case BIOS_BASE + BIOSOFST_EOIM:
 			CPU_REMCLOCK -= 300;
 			iocore_out8(0x00, 0x20);
@@ -368,11 +363,12 @@ UINT MEMCALL biosfunc(UINT32 adrs) {
 
 		case BIOS_BASE + BIOSOFST_1f:
 			CPU_REMCLOCK -= 200;
+			TRACEOUT(("unsupport protect bios"));
 			return(1);
 
 		case BIOS_BASE + BIOSOFST_WAIT:
 			CPU_STI;
-			if (fddmtr_biosbusy) {						// ver0.26
+			if (fddmtr.busy) {
 				CPU_IP--;
 				CPU_REMCLOCK = -1;
 			}
@@ -441,9 +437,16 @@ 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)) {
+			bios_lio((REG8)((adrs - 0xf9a00) >> 2));
+		}
+		else {
+			if (nevent_iswork(NEVENT_GDCSLAVE)) {
+				CPU_IP--;
+				CPU_REMCLOCK = -1;
+				return(1);
+			}
 		}
 		return(0);
 	}