np2/bios/bios.c - diff

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Diff for /np2/bios/bios.c between versions 1.4 and 1.12

version 1.4, 2003/11/14 10:04:56	version 1.12, 2003/12/08 00:55:30
Line 1	Line 1
#include "compiler.h"	#include "compiler.h"
#include "dosio.h"	#include "dosio.h"
#include "i286.h"	#include "cpucore.h"
#include "memory.h"	#include "memory.h"
#include "pccore.h"	#include "pccore.h"
#include "iocore.h"	#include "iocore.h"
Line 49 static void bios_reinitbyswitch(void) {	Line 49 static void bios_reinitbyswitch(void) {
BYTE biosflag;	BYTE biosflag;
BYTE ext_mem;	BYTE ext_mem;

CPUTYPE = 0;	CPU_TYPE = 0;
prxcrt = 0xc8;	prxcrt = 0xc8;
if (gdc.display & 2) {	if (gdc.display & 2) {
prxcrt \|= 0x04; // color16	prxcrt \|= 0x04; // color16
Line 80 static void bios_reinitbyswitch(void) {	Line 80 static void bios_reinitbyswitch(void) {
ext_mem = np2cfg.EXTMEM; // ver0.28	ext_mem = np2cfg.EXTMEM; // ver0.28
}	}
else {	else {
CPUTYPE = CPUTYPE_V30;	CPU_TYPE = CPUTYPE_V30;
ext_mem = 0;	ext_mem = 0;
biosflag \|= 0x40;	biosflag \|= 0x40;
}	}
Line 97 static void bios_reinitbyswitch(void) {	Line 97 static void bios_reinitbyswitch(void) {
}	}
gdcs.textdisp \|= GDCSCRN_EXT;	gdcs.textdisp \|= GDCSCRN_EXT;

if ((np2cfg.model >= PCMODEL_VX) && (usesound & 0x7e)) {	if ((pc.model >= PCMODEL_VX) && (usesound & 0x7e)) {
iocore_out8(0x188, 0x27);	iocore_out8(0x188, 0x27);
iocore_out8(0x18a, 0x3f);	iocore_out8(0x18a, 0x3f);
}	}
Line 135 static const UINT16 biosoffset[0x20] = {	Line 135 static const UINT16 biosoffset[0x20] = {

void bios_init(void) {	void bios_init(void) {

	char path[MAX_PATH];
FILEH fh;	FILEH fh;
UINT i;	UINT i;
UINT pos;	UINT pos;
Line 143 void bios_init(void) {	Line 144 void bios_init(void) {

// まぁDISK BASIC動くようになるからいいんじゃないですか？	// まぁDISK BASIC動くようになるからいいんじゃないですか？
// BASIC BIOSは 8086コードのように見えるけど…	// BASIC BIOSは 8086コードのように見えるけど…
fh = file_open_c(file_biosrom);	getbiospath(path, file_biosrom, sizeof(path));
	fh = file_open_rb(path);
if (fh != FILEH_INVALID) {	if (fh != FILEH_INVALID) {
if (file_read(fh, mem + 0x0e8000, 0x18000) == 0x18000) {	if (file_read(fh, mem + 0x0e8000, 0x18000) == 0x18000) {
biosrom = TRUE;	biosrom = TRUE;
Line 154 void bios_init(void) {	Line 156 void bios_init(void) {
CopyMemory(mem + 0x0e8000, nosyscode, sizeof(nosyscode));	CopyMemory(mem + 0x0e8000, nosyscode, sizeof(nosyscode));
}	}

itf.bank = 0;

// BIOS hookのアドレス変更	// BIOS hookのアドレス変更
for (i=0; i<0x20; i++) {	for (i=0; i<0x20; i++) {
STOREINTELWORD(mem + 0xfd868 + i*2, biosoffset[i]);	STOREINTELWORD(mem + 0xfd868 + i*2, biosoffset[i]);
Line 231 static void bios_boot(void) {	Line 231 static void bios_boot(void) {
if (!(sysport.c & 0x20)) {	if (!(sysport.c & 0x20)) {
bios_reinitbyswitch();	bios_reinitbyswitch();
}	}
I286_CS = 0x0000;	CPU_CS = 0x0000;
I286_IP = 0x04f8;	CPU_IP = 0x04f8;
I286_DS = 0x0000;	CPU_DS = 0x0000;
I286_DX = 0x43d;	CPU_DX = 0x43d;
I286_AL = 0x10;	CPU_AL = 0x10;
mem[0x004f8] = 0xee; // out dx, al	mem[0x004f8] = 0xee; // out dx, al
mem[0x004f9] = 0xea; // call far	mem[0x004f9] = 0xea; // call far
SETBIOSMEM32(0x004fa, 0xffff0000);	SETBIOSMEM16(0x004fa, 0x0000);
	SETBIOSMEM16(0x004fc, 0xffff);
}	}
else {	else {
I286_SP = GETBIOSMEM16(0x00404);	CPU_SP = GETBIOSMEM16(0x00404);
I286_SS = GETBIOSMEM16(0x00406);	CPU_SS = GETBIOSMEM16(0x00406);
}	}
}	}

Line 251 UINT MEMCALL biosfunc(UINT32 adrs) {	Line 252 UINT MEMCALL biosfunc(UINT32 adrs) {

UINT16 bootseg;	UINT16 bootseg;

if ((itf.bank) && (adrs >= 0xf8000) && (adrs < 0x100000)) {	if ((CPU_ITFBANK) && (adrs >= 0xf8000) && (adrs < 0x100000)) {
I286_IP--;	CPU_IP--;
I286_REMCLOCK = -1;	CPU_REMCLOCK = -1;
return(1);	return(1);
}	}

switch(adrs) { // ver0.30	switch(adrs) { // ver0.30
case BIOS_BASE + BIOSOFST_EOIM:	case BIOS_BASE + BIOSOFST_EOIM:
I286_REMCLOCK -= 300;	CPU_REMCLOCK -= 300;
iocore_out8(0x00, 0x20);	iocore_out8(0x00, 0x20);
return(0);	return(0);

Line 271 UINT MEMCALL biosfunc(UINT32 adrs) {	Line 272 UINT MEMCALL biosfunc(UINT32 adrs) {
return(0);	return(0);

case BIOS_BASE + BIOSOFST_02:	case BIOS_BASE + BIOSOFST_02:
I286_REMCLOCK -= 300;	CPU_REMCLOCK -= 300;
bios0x02();	bios0x02();
return(1);	return(1);

case BIOS_BASE + BIOSOFST_08:	case BIOS_BASE + BIOSOFST_08:
I286_REMCLOCK -= 300;	CPU_REMCLOCK -= 300;
bios0x08();	bios0x08();
return(1);	return(1);

case BIOS_BASE + BIOSOFST_09:	case BIOS_BASE + BIOSOFST_09:
I286_REMCLOCK -= 300;	CPU_REMCLOCK -= 300;
bios0x09();	bios0x09();
return(1);	return(1);

case BIOS_BASE + BIOSOFST_0c:	case BIOS_BASE + BIOSOFST_0c:
I286_REMCLOCK -= 500;	CPU_REMCLOCK -= 500;
bios0x0c();	bios0x0c();
return(1);	return(1);

case BIOS_BASE + BIOSOFST_12:	case BIOS_BASE + BIOSOFST_12:
I286_REMCLOCK -= 500;	CPU_REMCLOCK -= 500;
bios0x12();	bios0x12();
return(1);	return(1);

case BIOS_BASE + BIOSOFST_13:	case BIOS_BASE + BIOSOFST_13:
I286_REMCLOCK -= 500;	CPU_REMCLOCK -= 500;
bios0x13();	bios0x13();
return(1);	return(1);

case BIOS_BASE + BIOSOFST_18:	case BIOS_BASE + BIOSOFST_18:
I286_REMCLOCK -= 200;	CPU_REMCLOCK -= 200;
bios0x18();	bios0x18();
return(1);	return(1);

case BIOS_BASE + BIOSOFST_19:	case BIOS_BASE + BIOSOFST_19:
I286_REMCLOCK -= 200;	CPU_REMCLOCK -= 200;
bios0x19();	bios0x19();
return(1);	return(1);

case BIOS_BASE + BIOSOFST_1a:	case BIOS_BASE + BIOSOFST_1a:
I286_REMCLOCK -= 200;	CPU_REMCLOCK -= 200;
bios0x1a();	bios0x1a();
return(1);	return(1);

case BIOS_BASE + BIOSOFST_1b:	case BIOS_BASE + BIOSOFST_1b:
I286_REMCLOCK -= 200;	CPU_REMCLOCK -= 200;
bios0x1b();	bios0x1b();
return(1);	return(1);

case BIOS_BASE + BIOSOFST_1c:	case BIOS_BASE + BIOSOFST_1c:
I286_REMCLOCK -= 200;	CPU_REMCLOCK -= 200;
bios0x1c();	bios0x1c();
return(1);	return(1);

case BIOS_BASE + BIOSOFST_WAIT:	case BIOS_BASE + BIOSOFST_WAIT:
I286_STI;	CPU_STI;
if (fddmtr_biosbusy) { // ver0.26	if (fddmtr_biosbusy) { // ver0.26
I286_IP--;	CPU_IP--;
I286_REMCLOCK = -1;	CPU_REMCLOCK = -1;
}	}
else {	else {
switch(CTRL_FDMEDIA) {	switch(CTRL_FDMEDIA) {
case DISKTYPE_2HD:	case DISKTYPE_2HD:
if (pic.pi[1].isr & PIC_INT42) {	if (pic.pi[1].isr & PIC_INT42) {
I286_IP--;	CPU_IP--;
I286_REMCLOCK -= 1000;	CPU_REMCLOCK -= 1000;
}	}
break;	break;
case DISKTYPE_2DD:	case DISKTYPE_2DD:
if (pic.pi[1].isr & PIC_INT41) {	if (pic.pi[1].isr & PIC_INT41) {
I286_IP--;	CPU_IP--;
I286_REMCLOCK -= 1000;	CPU_REMCLOCK -= 1000;
}	}
break;	break;
}	}
Line 361 UINT MEMCALL biosfunc(UINT32 adrs) {	Line 362 UINT MEMCALL biosfunc(UINT32 adrs) {
bios_reinitbyswitch(); // ver0.27	bios_reinitbyswitch(); // ver0.27
bios_vectorset(); // ver0.29	bios_vectorset(); // ver0.29
bootseg = bootstrapload();	bootseg = bootstrapload();
I286_STI;	CPU_STI;
I286_CS = (bootseg != 0)?bootseg:0xe800;	CPU_CS = (bootseg != 0)?bootseg:0xe800;
I286_DS = 0x0000;	CPU_DS = 0x0000;
I286_SS = 0x0030;	CPU_SS = 0x0030;
I286_SP = 0x00e6;	CPU_SP = 0x00e6;
I286_IP = 0x0000;	CPU_IP = 0x0000;
return(1);	return(1);

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
I286_REMCLOCK -= 2000;	CPU_REMCLOCK -= 2000;
bootseg = bootstrapload();	bootseg = bootstrapload();
if (bootseg) {	if (bootseg) {
I286_STI;	CPU_STI;
I286_CS = bootseg;	CPU_CS = bootseg;
I286_IP = 0x0000;	CPU_IP = 0x0000;
I286_SS = 0x0030;	CPU_SS = 0x0030;
I286_SP = 0x00e6;	CPU_SP = 0x00e6;
return(1);	return(1);
}	}
return(0);	return(0);

case 0xfffec:	case 0xfffec:
I286_REMCLOCK -= 2000;	CPU_REMCLOCK -= 2000;
bootstrapload();	bootstrapload();
return(0);	return(0);
}	}
Line 398 UINT MEMCALL biosfunc(UINT32 adrs) {	Line 399 UINT MEMCALL biosfunc(UINT32 adrs) {
if (biosrom) {	if (biosrom) {
return(0);	return(0);
}	}
I286_IP--;	CPU_IP--;
I286_REMCLOCK = -1;	CPU_REMCLOCK = -1;
return(1);	return(1);
}	}

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

Removed from v.1.4
changed lines
	Added in v.1.12