--- np2/bios/bios.c	2004/01/22 01:10:03	1.28
+++ np2/bios/bios.c	2004/01/23 15:05:04	1.31
@@ -6,8 +6,6 @@
 #include	"bios.h"
 #include	"biosmem.h"
 #include	"sxsibios.h"
-#include	"sound.h"
-#include	"fmboard.h"
 #include	"lio.h"
 #include	"fddfile.h"
 #include	"fdd_mtr.h"
@@ -50,9 +48,20 @@ static void bios_reinitbyswitch(void) {
 	SETBIOSMEM16(0x00486, CPU_DX);
 #endif
 
+	if (!(np2cfg.dipsw[2] & 0x80)) {
+#if defined(CPUCORE_IA32)
+		mem[MEMB_SYS_TYPE] = 0x02;		// 80386กม
+#else
+		mem[MEMB_SYS_TYPE] = 0x01;		// 80286
+#endif
+	}
+	else {
+		mem[MEMB_SYS_TYPE] = 0x00;		// V30
+	}
+
 	mem[MEMB_BIOS_FLAG0] = 0x01;
 	CPU_TYPE = 0;
-	prxcrt = 0xc8;
+	prxcrt = 0x48;								// ver0.74
 	if (gdc.display & 2) {
 		prxcrt |= 0x04;							// color16
 	}
@@ -99,7 +108,8 @@ static void bios_reinitbyswitch(void) {
 	}
 	gdcs.textdisp |= GDCSCRN_EXT;
 
-	if (((pccore.model & PCMODELMASK) >= PCMODEL_VX) && (usesound & 0x7e)) {
+	if (((pccore.model & PCMODELMASK) >= PCMODEL_VX) &&
+		(pccore.sound & 0x7e)) {
 		iocore_out8(0x188, 0x27);
 		iocore_out8(0x18a, 0x3f);
 	}
@@ -120,6 +130,7 @@ static void bios_reinitbyswitch(void) {
 
 	// IDE initialize
 	if (pccore.hddif & PCHDD_IDE) {
+		mem[MEMB_SYS_TYPE] |= 0x80;		// IDE
 		CPU_AX = 0x8300;
 		sasibios_operate();
 	}