np2/bios/bios.c - diff

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Diff for /np2/bios/bios.c between versions 1.63 and 1.69

version 1.63, 2004/05/21 08:40:27	version 1.69, 2004/07/22 11:31:32
Line 20	Line 20

#define BIOS_SIMULATE	#define BIOS_SIMULATE

BOOL biosrom = FALSE;

static const char neccheck[] = "Copyright (C) 1983 by NEC Corporation";	static const char neccheck[] = "Copyright (C) 1983 by NEC Corporation";

typedef struct {	typedef struct {
Line 149 static void bios_reinitbyswitch(void) {	Line 147 static void bios_reinitbyswitch(void) {
fddbios_equip(0, TRUE);	fddbios_equip(0, TRUE);
mem[MEMB_BIOS_FLAG0] &= ~0x02;	mem[MEMB_BIOS_FLAG0] &= ~0x02;
}	}
	mem[MEMB_F2HD_MODE] = 0xff;
mem[MEMB_F2DD_MODE] = 0xff;	mem[MEMB_F2DD_MODE] = 0xff;

#if defined(SUPPORT_CRT31KHZ)	#if defined(SUPPORT_CRT31KHZ)
Line 192 static void bios_screeninit(void) {	Line 191 static void bios_screeninit(void) {
bios0x18_0a(al);	bios0x18_0a(al);
}	}

	static void setbiosseed(UINT8 *ptr, UINT size, UINT seedpos) {

	UINT8 x;
	UINT8 y;
	UINT i;

	x = 0;
	y = 0;
	for (i=0; i<size; i+=2) {
	x += ptr[i + 0];
	y += ptr[i + 1];
	}
	ptr[seedpos + 0] -= x;
	ptr[seedpos + 1] -= y;
	}

void bios_initialize(void) {	void bios_initialize(void) {

	BOOL biosrom;
char path[MAX_PATH];	char path[MAX_PATH];
FILEH fh;	FILEH fh;
UINT i;	UINT i;
Line 210 void bios_initialize(void) {	Line 225 void bios_initialize(void) {
}	}
if (biosrom) {	if (biosrom) {
TRACEOUT(("load bios.rom"));	TRACEOUT(("load bios.rom"));
	pccore.rom \|= PCROM_BIOS;
// PnP BIOSを潰す	// PnP BIOSを潰す
for (i=0; i<0x10000; i+=0x10) {	for (i=0; i<0x10000; i+=0x10) {
tmp = LOADINTELDWORD(mem + 0xf0000 + i);	tmp = LOADINTELDWORD(mem + 0xf0000 + i);
if (tmp == 0x506e5024) {	if (tmp == 0x506e5024) {
TRACEOUT(("found PnP BIOS at %.5x", 0xf0000 + i));	TRACEOUT(("found PnP BIOS at %.5x", 0xf0000 + i));
STOREINTELDWORD(mem + 0xf0000 + i, 0x32504e24);	mem[0xf0000 + i] = 0x6e;
	mem[0xf0002 + i] = 0x24;
	break;
}	}
}	}
}	}
else {	else {
CopyMemory(mem + 0x0e8000, nosyscode, sizeof(nosyscode));	CopyMemory(mem + 0x0e8000, nosyscode, sizeof(nosyscode));
	if ((!biosrom) && (!(pccore.model & PCMODEL_EPSON))) {
	CopyMemory(mem + 0xe8dd8, neccheck, 0x25);
	pos = LOADINTELWORD(itfrom + 2);
	CopyMemory(mem + 0xf538e, itfrom + pos, 0x27);
	}
	setbiosseed(mem + 0x0e8000, 0x10000, 0xb1f0);
}	}

#if defined(SUPPORT_PC9821)	#if defined(SUPPORT_PC9821)
Line 256 void bios_initialize(void) {	Line 280 void bios_initialize(void) {
mem[0xffff0] = 0xea;	mem[0xffff0] = 0xea;
STOREINTELDWORD(mem + 0xffff1, 0xfd800000);	STOREINTELDWORD(mem + 0xffff1, 0xfd800000);

if ((!biosrom) && (!(pccore.model & PCMODEL_EPSON))) {
CopyMemory(mem + 0xe8dd8, neccheck, 0x25);
pos = LOADINTELWORD(itfrom + 2);
CopyMemory(mem + 0xf538e, itfrom + pos, 0x27);
}

CopyMemory(mem + 0x0fd800 + 0x0e00, keytable[0], 0x300);	CopyMemory(mem + 0x0fd800 + 0x0e00, keytable[0], 0x300);

CopyMemory(mem + ITF_ADRS, itfrom, sizeof(itfrom));	CopyMemory(mem + ITF_ADRS, itfrom, sizeof(itfrom));
Line 273 void bios_initialize(void) {	Line 291 void bios_initialize(void) {
else if ((pccore.model & PCMODELMASK) == PCMODEL_VM) {	else if ((pccore.model & PCMODELMASK) == PCMODEL_VM) {
mem[ITF_ADRS + 0x7ff1] = 0x08;	mem[ITF_ADRS + 0x7ff1] = 0x08;
}	}
	setbiosseed(mem + 0x0f8000, 0x08000, 0x7ffe);
#else	#else
fh = file_open_c("itf.rom");	fh = file_open_c("itf.rom");
if (fh != FILEH_INVALID) {	if (fh != FILEH_INVALID) {
Line 300 static void bios_itfcall(void) {	Line 319 static void bios_itfcall(void) {

if (!np2cfg.ITF_WORK) {	if (!np2cfg.ITF_WORK) {
for (i=0; i<8; i++) {	for (i=0; i<8; i++) {
mem[MEMB_MSW + (i*4)] = msw_default[i];	mem[MEMX_MSW + (i*4)] = msw_default[i];
}	}
CPU_FLAGL \|= C_FLAG;	CPU_FLAGL \|= C_FLAG;
}	}
Line 354 UINT MEMCALL biosfunc(UINT32 adrs) {	Line 373 UINT MEMCALL biosfunc(UINT32 adrs) {
bios_memclear();	bios_memclear();
#endif	#endif
bios_vectorset();	bios_vectorset();
	#if 1
	bios0x09_init();
	#endif
bios_reinitbyswitch();	bios_reinitbyswitch();
bios_vectorset();	bios_vectorset();
bios_screeninit();	bios_screeninit();
Line 397 UINT MEMCALL biosfunc(UINT32 adrs) {	Line 419 UINT MEMCALL biosfunc(UINT32 adrs) {
case BIOS_BASE + BIOSOFST_CMT:	case BIOS_BASE + BIOSOFST_CMT:
CPU_REMCLOCK -= 200;	CPU_REMCLOCK -= 200;
bios0x1a_cmt();	bios0x1a_cmt();
return(1);	return(0); // return(1);

case BIOS_BASE + BIOSOFST_PRT:	case BIOS_BASE + BIOSOFST_PRT:
CPU_REMCLOCK -= 200;	CPU_REMCLOCK -= 200;
Line 422 UINT MEMCALL biosfunc(UINT32 adrs) {	Line 444 UINT MEMCALL biosfunc(UINT32 adrs) {

case BIOS_BASE + BIOSOFST_WAIT:	case BIOS_BASE + BIOSOFST_WAIT:
CPU_STI;	CPU_STI;
	#if 1
	return(bios0x1b_wait()); // ver0.78
	#else
if (fddmtr.busy) {	if (fddmtr.busy) {
CPU_IP--;	CPU_IP--;
CPU_REMCLOCK = -1;	CPU_REMCLOCK = -1;
}	}
else {	else {
if (fdc.chgreg & 1) {	if (fdc.chgreg & 1) {
if (!(mem[0x0055e] & (0x01 << fdc.us))) {	if (!(mem[MEMB_DISK_INTL] & (0x01 << fdc.us))) {
CPU_IP--;	CPU_IP--;
CPU_REMCLOCK -= 1000;	CPU_REMCLOCK -= 1000;
}	}
}	}
else {	else {
if (!(mem[0x0055f] & (0x10 << fdc.us))) {	if (!(mem[MEMB_DISK_INTH] & (0x10 << fdc.us))) {
CPU_IP--;	CPU_IP--;
CPU_REMCLOCK -= 1000;	CPU_REMCLOCK -= 1000;
}	}
}	}
}	}
return(1);	return(1);
	#endif

case 0xfffe8: // ブートストラップロード	case 0xfffe8: // ブートストラップロード
CPU_REMCLOCK -= 2000;	CPU_REMCLOCK -= 2000;
Line 459 UINT MEMCALL biosfunc(UINT32 adrs) {	Line 485 UINT MEMCALL biosfunc(UINT32 adrs) {
return(0);	return(0);
}	}

if ((adrs >= 0xf9a00) && (adrs < 0x0f9a44)) {	if ((adrs >= 0xf9950) && (adrs <= 0x0f9990) && (!(adrs & 3))) {
if (!(adrs & 3)) {	CPU_REMCLOCK -= 500;
CPU_REMCLOCK -= 500;	bios_lio((REG8)((adrs - 0xf9950) >> 2));
bios_lio((REG8)((adrs - 0xf9a00) >> 2));	}
}	else if (adrs == 0xf9994) {
else {	if (nevent_iswork(NEVENT_GDCSLAVE)) {
if (nevent_iswork(NEVENT_GDCSLAVE)) {	CPU_IP--;
CPU_IP--;	CPU_REMCLOCK = -1;
CPU_REMCLOCK = -1;	return(1);
return(1);
}
}	}
return(0);
}	}
return(0);	return(0);
}	}

RetroPC.NET-CVS <cvs@retropc.net>

Removed from v.1.63
changed lines
	Added in v.1.69