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| version 1.2, 2003/10/19 14:56:15 | version 1.53, 2004/03/04 17:36:05 |
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| Line 1 | Line 1 |
| #include "compiler.h" | #include "compiler.h" |
| #include "strres.h" | |
| #include "dosio.h" | #include "dosio.h" |
| #include "i286.h" | #include "cpucore.h" |
| #include "memory.h" | |
| #include "pccore.h" | #include "pccore.h" |
| #include "iocore.h" | #include "iocore.h" |
| #include "bios.h" | #include "bios.h" |
| #include "biosmem.h" | #include "biosmem.h" |
| #include "keytable.res" | #include "sxsibios.h" |
| #include "itfrom.res" | |
| #include "lio.h" | #include "lio.h" |
| #include "fdfmt.h" | |
| #include "fddfile.h" | #include "fddfile.h" |
| #include "fdd_mtr.h" | #include "fdd_mtr.h" |
| #include "fdfmt.h" | |
| #include "keytable.res" | |
| #include "itfrom.res" | |
| #include "startup.res" | |
| #include "biosboot.res" | |
| BOOL biosrom = FALSE; | #define BIOS_SIMULATE |
| static const char file_biosrom[] = "bios.rom"; | BOOL biosrom = FALSE; |
| static const char neccheck[] = "Copyright (C) 1983 by NEC Corporation"; | static const char neccheck[] = "Copyright (C) 1983 by NEC Corporation"; |
| // 00/05/18 MS-DOS6.2 on PC-9801VX calling proc | // 00/05/18 MS-DOS6.2 on PC-9801VX calling proc |
| static const BYTE printmain[] = {0x90, 0x5a, 0x1f, 0xcf}; | static const BYTE printmain[] = {0x90, 0x5a, 0x1f, 0xcf}; |
| static const BYTE nosyscode[] = { | |
| 0xeb,0x05,0xbe,0x6f,0x00,0xeb,0x03,0xbe,0x47,0x00,0xb8,0x00, | |
| 0x10,0xbb,0x00,0x80,0x8e,0xd0,0x8b,0xe3,0x8c,0xc8,0x8e,0xd8, | |
| 0xb8,0x00,0xa0,0x8e,0xc0,0xb9,0x00,0x10,0xb8,0x20,0x00,0x33, | |
| 0xff,0xfc,0xf3,0xab,0xb0,0xe1,0xb9,0xe0,0x1f,0xaa,0x47,0xe2, | |
| 0xfc,0x2e,0xad,0x8b,0xf8,0x2e,0xad,0x85,0xc0,0x74,0x0a,0xab, | |
| 0x0a,0xe4,0x74,0xf5,0x83,0xc7,0x02,0xeb,0xf0,0xeb,0xfe,0xac, | |
| 0x07,0x05,0x37,0x05,0x39,0x05,0x46,0x05,0x60,0x05,0x47,0x05, | |
| 0x23,0x05,0x39,0x05,0x2f,0x04,0x72,0x05,0x3b,0x05,0x43,0x05, | |
| 0x48,0x04,0x37,0x04,0x46,0x04,0x2f,0x04,0x40,0x04,0x35,0x04, | |
| 0x24,0x00,0x00,0xae,0x07,0x42,0x00,0x41,0x00,0x53,0x00,0x49, | |
| 0x00,0x43,0x00,0x04,0x4e,0x15,0x2f,0x26,0x30,0x04,0x4b,0x04, | |
| 0x4f,0x20,0x00,0x42,0x00,0x49,0x00,0x4f,0x00,0x53,0x00,0x2e, | |
| 0x00,0x52,0x00,0x4f,0x00,0x4d,0x00,0x04,0x2c,0x29,0x2c,0x2d, | |
| 0x57,0x04,0x47,0x04,0x39,0x00,0x00}; | |
| static void bios_reinitbyswitch(void) { | static void bios_reinitbyswitch(void) { |
| BYTE prxcrt; | BYTE prxcrt; |
| BYTE prxdupd; | BYTE prxdupd; |
| BYTE biosflag; | BYTE biosflag; |
| BYTE ext_mem; | UINT8 boot; |
| #if defined(CPUCORE_IA32) | |
| UINT16 org_cs; | |
| UINT16 org_ip; | |
| org_cs = CPU_CS; | |
| org_ip = CPU_IP; | |
| CPU_SHUT(); | |
| CPU_CS = org_cs; | |
| CPU_IP = org_ip; | |
| SETBIOSMEM16(0x00486, CPU_DX); | |
| #endif | |
| CPUTYPE = 0; | if (!(np2cfg.dipsw[2] & 0x80)) { |
| prxcrt = 0xc8; | #if defined(CPUCORE_IA32) |
| if (gdc.display & 2) { | mem[MEMB_SYS_TYPE] = 0x03; // 80386〜 |
| #else | |
| mem[MEMB_SYS_TYPE] = 0x01; // 80286 | |
| #endif | |
| } | |
| else { | |
| mem[MEMB_SYS_TYPE] = 0x00; // V30 | |
| } | |
| mem[MEMB_BIOS_FLAG0] = 0x01; | |
| prxcrt = 0x08; | |
| if (!(np2cfg.dipsw[0] & 0x01)) { // dipsw1-1 on | |
| prxcrt |= 0x40; | |
| } | |
| if (gdc.display & (1 << GDCDISP_ANALOG)) { | |
| prxcrt |= 0x04; // color16 | prxcrt |= 0x04; // color16 |
| } | } |
| if (!(np2cfg.dipsw[0] & 0x80)) { // dipsw1-8 on | if (!(np2cfg.dipsw[0] & 0x80)) { // dipsw1-8 on |
| Line 70 static void bios_reinitbyswitch(void) { | Line 83 static void bios_reinitbyswitch(void) { |
| mem[MEMB_PRXDUPD] = prxdupd; | mem[MEMB_PRXDUPD] = prxdupd; |
| biosflag = 0x20; | biosflag = 0x20; |
| if (pc.cpumode & CPUMODE_8MHz) { | if (pccore.cpumode & CPUMODE_8MHZ) { |
| biosflag |= 0x80; | biosflag |= 0x80; |
| } | } |
| biosflag |= mem[0xa3fea] & 7; | biosflag |= mem[0xa3fea] & 7; |
| if (!(np2cfg.dipsw[2] & 0x80)) { | if (np2cfg.dipsw[2] & 0x80) { |
| ext_mem = np2cfg.EXTMEM; // ver0.28 | |
| } | |
| else { | |
| CPUTYPE = CPUTYPE_V30; | |
| ext_mem = 0; | |
| biosflag |= 0x40; | biosflag |= 0x40; |
| } | } |
| if (extmem_init(ext_mem)) { // ver0.28 | mem[MEMB_BIOS_FLAG1] = biosflag; |
| ext_mem = 0; // メモリ確保に失敗 | mem[MEMB_EXPMMSZ] = (BYTE)(pccore.extmem << 3); |
| } | |
| mem[MEMB_BIOS_FLAG] = biosflag; | |
| mem[MEMB_EXPMMSZ] = (BYTE)(ext_mem << 3); | |
| mem[MEMB_CRT_RASTER] = 0x0f; | mem[MEMB_CRT_RASTER] = 0x0f; |
| gdc.display &= ~4; | // FDD initialize |
| if (!(np2cfg.dipsw[0] & 0x04)) { // dipsw1-3 on | SETBIOSMEM32(MEMD_F2DD_POINTER, 0xfd801ad7); |
| gdc.display |= 4; | SETBIOSMEM32(MEMD_F2HD_POINTER, 0xfd801aaf); |
| boot = mem[MEMB_MSW5] & 0xf0; | |
| if (boot != 0x20) { // 1MB | |
| fddbios_equip(3, TRUE); | |
| mem[MEMB_BIOS_FLAG0] |= 0x02; | |
| } | |
| else { // 640KB | |
| fddbios_equip(0, TRUE); | |
| mem[MEMB_BIOS_FLAG0] &= ~0x02; | |
| } | |
| mem[MEMB_F2DD_MODE] = 0xff; | |
| #if defined(SUPPORT_CRT31KHZ) | |
| mem[MEMB_CRT_BIOS] = 0x80; | |
| #endif | |
| #if defined(SUPPORT_PC9821) | |
| mem[0x45c] = 0x40; | |
| #endif | |
| // IDE initialize | |
| if (pccore.hddif & PCHDD_IDE) { | |
| mem[MEMB_SYS_TYPE] |= 0x80; // IDE | |
| CPU_AX = 0x8300; | |
| sasibios_operate(); | |
| } | } |
| gdcs.textdisp |= GDCSCRN_EXT; | |
| } | } |
| static void bios_vectorset(void) { // ver0.30 | static void bios_memclear(void) { |
| ZeroMemory(mem, 0xa0000); | |
| ZeroMemory(mem + VRAM1_B, 0x18000); | |
| ZeroMemory(mem + VRAM1_E, 0x08000); | |
| } | |
| static void bios_vectorset(void) { | |
| UINT i; | UINT i; |
| Line 110 static void bios_vectorset(void) { | Line 144 static void bios_vectorset(void) { |
| SETBIOSMEM32(0x1e*4, 0xe8000000); | SETBIOSMEM32(0x1e*4, 0xe8000000); |
| } | } |
| static void bios_screeninit(void) { | |
| REG8 al; | |
| al = 4; | |
| al += (np2cfg.dipsw[1] & 0x04) >> 1; | |
| al += (np2cfg.dipsw[1] & 0x08) >> 3; | |
| bios0x18_0a(al); | |
| } | |
| // CDSで見てる為、変更…(涙 | // CDSで見てる為、変更…(涙 |
| static const UINT16 biosoffset[0x20] = { | static const UINT16 biosoffset[0x20] = { |
| Line 123 static const UINT16 biosoffset[0x20] = { | Line 167 static const UINT16 biosoffset[0x20] = { |
| BIOSOFST_EOIS, BIOSOFST_EOIS, BIOSOFST_EOIS, BIOSOFST_EOIS, | BIOSOFST_EOIS, BIOSOFST_EOIS, BIOSOFST_EOIS, BIOSOFST_EOIS, |
| BIOSOFST_18, BIOSOFST_19, BIOSOFST_1a, BIOSOFST_1b, | BIOSOFST_18, BIOSOFST_19, BIOSOFST_1a, BIOSOFST_1b, |
| BIOSOFST_1c, BIOSOFST_IRET, BIOSOFST_1e, BIOSOFST_IRET}; | BIOSOFST_1c, BIOSOFST_IRET, BIOSOFST_1e, BIOSOFST_1f}; |
| void bios_init(void) { | void bios_initialize(void) { |
| char path[MAX_PATH]; | |
| FILEH fh; | FILEH fh; |
| UINT i; | UINT i; |
| UINT pos; | UINT pos; |
| Line 136 void bios_init(void) { | Line 181 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, str_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) { |
| TRACEOUT(("load bios.rom")); | |
| biosrom = TRUE; | biosrom = TRUE; |
| } | } |
| file_close(fh); | file_close(fh); |
| Line 147 void bios_init(void) { | Line 194 void bios_init(void) { |
| CopyMemory(mem + 0x0e8000, nosyscode, sizeof(nosyscode)); | CopyMemory(mem + 0x0e8000, nosyscode, sizeof(nosyscode)); |
| } | } |
| itf.bank = 0; | #if defined(BIOS_SIMULATE) |
| // 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]); |
| } | } |
| SETBIOSMEM16(BIOS_BASE + BIOSOFST_IRET, 0x50cf); | SETBIOSMEM16(BIOS_BASE + BIOSOFST_IRET, 0x50cf); |
| SETBIOSMEM16(BIOS_BASE + BIOSOFST_WAIT, 0xcf90); | SETBIOSMEM16(BIOS_BASE + BIOSOFST_WAIT, 0xcf90); |
| for (i=(BIOS_BASE+BIOSOFST_EOIM); i<=(BIOS_BASE+BIOSOFST_1c); i+=2) { | for (i=(BIOS_BASE+BIOSOFST_EOIM); i<=(BIOS_BASE+BIOSOFST_1f); i+=2) { |
| SETBIOSMEM16(i, 0xcf90); | SETBIOSMEM16(i, 0xcf90); |
| } | } |
| CopyMemory(mem + BIOS_BASE + BIOSOFST_PRT, printmain, sizeof(printmain)); | CopyMemory(mem + BIOS_BASE + BIOSOFST_PRT, printmain, sizeof(printmain)); |
| bios_vectorset(); // ver0.29 | // bios_vectorset(); |
| if (!biosrom) { | if (!biosrom) { |
| lio_init(); | lio_initialize(); |
| } | } |
| SETBIOSMEM16(0xfd800, 0xcb90); | SETBIOSMEM16(0xfd800, 0xcb90); |
| Line 170 void bios_init(void) { | Line 216 void bios_init(void) { |
| for (i=0; i<8; i+=2) { | for (i=0; i<8; i+=2) { |
| STOREINTELWORD(mem + 0xfd800 + 0x1aaf + i, 0x1ab7); | STOREINTELWORD(mem + 0xfd800 + 0x1aaf + i, 0x1ab7); |
| STOREINTELWORD(mem + 0xfd800 + 0x1ad7 + i, 0x1adf); | STOREINTELWORD(mem + 0xfd800 + 0x1ad7 + i, 0x1adf); |
| STOREINTELWORD(mem + 0xfd800 + 0x2361 + i, 0x1980); // ver0.31 | STOREINTELWORD(mem + 0xfd800 + 0x2361 + i, 0x1980); |
| } | } |
| CopyMemory(mem + 0xfd800 + 0x1ab7, fdfmt2hd, sizeof(fdfmt2hd)); | CopyMemory(mem + 0xfd800 + 0x1ab7, fdfmt2hd, sizeof(fdfmt2hd)); |
| CopyMemory(mem + 0xfd800 + 0x1adf, fdfmt2dd, sizeof(fdfmt2dd)); | CopyMemory(mem + 0xfd800 + 0x1adf, fdfmt2dd, sizeof(fdfmt2dd)); |
| CopyMemory(mem + 0xfd800 + 0x1980, fdfmt144, sizeof(fdfmt144)); // ver0.31 | CopyMemory(mem + 0xfd800 + 0x1980, fdfmt144, sizeof(fdfmt144)); |
| SETBIOSMEM16(0xfffe8, 0xcb90); | SETBIOSMEM16(0xfffe8, 0xcb90); |
| SETBIOSMEM16(0xfffec, 0xcb90); | SETBIOSMEM16(0xfffec, 0xcb90); |
| mem[0xffff0] = 0xea; | mem[0xffff0] = 0xea; |
| STOREINTELDWORD(mem + 0xffff1, 0xfd800000); | STOREINTELDWORD(mem + 0xffff1, 0xfd800000); |
| #if 1 | if ((!biosrom) && (!(pccore.model & PCMODEL_EPSON))) { |
| CopyMemory(mem + 0xe8dd8, neccheck, 0x25); | |
| pos = LOADINTELWORD(itfrom + 2); | |
| CopyMemory(mem + 0xf538e, itfrom + pos, 0x27); | |
| } | |
| // bios_reinitbyswitch(); | |
| // mem[MEMB_CRT_STS_FLAG] = 0x84; // -> bios_screeninit() | |
| // mem[MEMB_BIOS_FLAG0] = 0x03; | |
| // mem[MEMB_F2DD_MODE] = 0xff; | |
| // SETBIOSMEM16(MEMW_DISK_EQUIP, 0x0003); | |
| mem[0x005ae] |= 0x03; // ver0.31 | |
| CopyMemory(mem + 0x0fde00, keytable[0], 0x300); | |
| // bios0x09_init(); | |
| CopyMemory(mem + ITF_ADRS, itfrom, sizeof(itfrom)); | CopyMemory(mem + ITF_ADRS, itfrom, sizeof(itfrom)); |
| mem[ITF_ADRS + 0x7ff0] = 0xea; | mem[ITF_ADRS + 0x7ff0] = 0xea; |
| STOREINTELDWORD(mem + ITF_ADRS + 0x7ff1, 0xf8000000); | STOREINTELDWORD(mem + ITF_ADRS + 0x7ff1, 0xf8000000); |
| #if 0 | if (pccore.model & PCMODEL_EPSON) { |
| fh = file_create("itf.rom"); | mem[ITF_ADRS + 0x7ff1] = 0x04; |
| if (fh != FILEH_INVALID) { | } |
| file_write(fh, itfrom, sizeof(itfrom)); | else if ((pccore.model & PCMODELMASK) == PCMODEL_VM) { |
| file_close(fh); | mem[ITF_ADRS + 0x7ff1] = 0x08; |
| } | } |
| #endif | |
| CopyMemory(mem + 0xfd800 + 0x2400, biosboot, sizeof(biosboot)); | |
| #else | #else |
| fh = file_open_c("itf.rom"); | fh = file_open_c("itf.rom"); |
| if (fh != FILEH_INVALID) { | if (fh != FILEH_INVALID) { |
| file_read(fh, &mem[ITF_ADRS], 0x8000); | file_read(fh, mem + ITF_ADRS, 0x8000); |
| file_close(fh); | file_close(fh); |
| TRACEOUT(("load itf.rom")); | |
| } | } |
| #endif | #endif |
| if (!biosrom) { | |
| CopyMemory(mem + 0xe8dd8, neccheck, 0x25); | |
| pos = LOADINTELWORD(itfrom + 2); | |
| CopyMemory(mem + 0xf538e, itfrom + pos, 0x27); | |
| } | |
| bios_reinitbyswitch(); | |
| mem[MEMB_CRT_STS_FLAG] = 0x84; | |
| mem[MEMB_BIOS_FLAG0] = 0x03; // 00/05/17 beep tone | |
| mem[MEMB_F2DD_MODE] = 0xff; // ver0.29 | |
| SETBIOSMEM16(MEMW_DISK_EQUIP, 0x0003); // ver0.29 | |
| SETBIOSMEM32(MEMD_F2DD_POINTER, 0xfd801ad7); | |
| SETBIOSMEM32(MEMD_F2HD_POINTER, 0xfd801aaf); | |
| mem[0x005ae] |= 0x03; // ver0.31 | |
| CopyMemory(mem + 0x0fde00, keytable[0], 0x300); | CopyMemory(mem + 0x1c0000, mem + ITF_ADRS, 0x08000); |
| bios0x09_init(); | CopyMemory(mem + 0x1e8000, mem + 0x0e8000, 0x10000); |
| } | } |
| static void bios_boot(void) { | static void bios_boot(void) { |
| if (sysport.c & 0x80) { | if (!(sysport.c & 0x80)) { |
| if (!(sysport.c & 0x20)) { | CPU_SP = GETBIOSMEM16(0x00404); |
| bios_reinitbyswitch(); | CPU_SS = GETBIOSMEM16(0x00406); |
| } | // TRACEOUT(("CPU Reset... SS:SP = %.4x:%.4x", CPU_SS, CPU_SP)); |
| I286_CS = 0x0000; | |
| I286_IP = 0x04f8; | |
| I286_DS = 0x0000; | |
| I286_DX = 0x43d; | |
| I286_AL = 0x10; | |
| mem[0x004f8] = 0xee; // out dx, al | |
| mem[0x004f9] = 0xea; // call far | |
| SETBIOSMEM32(0x004fa, 0xffff0000); | |
| } | } |
| else { | else { |
| I286_SP = GETBIOSMEM16(0x00404); | // bios_memclear(); |
| I286_SS = GETBIOSMEM16(0x00406); | bios_vectorset(); |
| bios0x09_init(); | |
| bios_reinitbyswitch(); | |
| if (sysport.c & 0x20) { | |
| CPU_CS = 0x0000; | |
| CPU_IP = 0x04f8; | |
| CPU_DS = 0x0000; | |
| CPU_DX = 0x43d; | |
| CPU_AL = 0x10; | |
| mem[0x004f8] = 0xee; // out dx, al | |
| mem[0x004f9] = 0xea; // call far | |
| SETBIOSMEM16(0x004fa, 0x0000); | |
| SETBIOSMEM16(0x004fc, 0xffff); | |
| } | |
| else { | |
| CPU_IP = 0x0002; | |
| } | |
| } | } |
| } | } |
| // 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) { | |
| MEML_READSTR(CPU_ES, CPU_BX + 0x10, work, 0x10); | |
| src = work[2] + (work[3] << 8) + (work[4] << 16) + CPU_SI; | |
| dst = work[10] + (work[11] << 8) + (work[12] << 16) + CPU_DI; | |
| leng = LOW16(CPU_CX - 1) + 1; | |
| TRACEOUT(("protect bios: memmove")); | |
| TRACEOUT(("%.2x %.2x %.2x %.2x %.2x %.2x %.2x %.2x", | |
| work[0], work[1], work[2], work[3], | |
| work[4], work[5], work[6], work[7])); | |
| TRACEOUT(("%.2x %.2x %.2x %.2x %.2x %.2x %.2x %.2x", | |
| work[8], work[9], work[10], work[11], | |
| work[12], work[13], work[14], work[15])); | |
| TRACEOUT(("SI=%.4x DI=%.4x CX=%.4x", CPU_SI, CPU_DI, CPU_CX)); | |
| TRACEOUT(("src:%08x dst:%08x leng:%08x", src, dst, leng)); | |
| do { | |
| l = min(leng, 256); | |
| MEML_READ(src, work, l); | |
| MEML_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) { | 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--; | // for epson ITF |
| I286_REMCLOCK = -1; | return(0); |
| return(1); | |
| } | } |
| switch(adrs) { // ver0.30 | switch(adrs) { |
| 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 264 UINT MEMCALL biosfunc(UINT32 adrs) { | Line 357 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_STI; |
| 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_1f: | |
| CPU_REMCLOCK -= 200; | |
| bios0x1f(); | |
| return(1); | |
| case BIOS_BASE + BIOSOFST_WAIT: | case BIOS_BASE + BIOSOFST_WAIT: |
| I286_STI; | CPU_STI; |
| if (fddmtr_biosbusy) { // ver0.26 | if (fddmtr.busy) { |
| I286_IP--; | CPU_IP--; |
| I286_REMCLOCK = -1; | CPU_REMCLOCK = -1; |
| } | } |
| else { | else { |
| switch(CTRL_FDMEDIA) { | if (fdc.chgreg & 1) { |
| case DISKTYPE_2HD: | if (!(mem[0x0055e] & (0x01 << fdc.us))) { |
| if (pic.pi[1].isr & PIC_INT42) { | CPU_IP--; |
| I286_IP--; | CPU_REMCLOCK -= 1000; |
| I286_REMCLOCK -= 1000; | } |
| } | } |
| break; | else { |
| case DISKTYPE_2DD: | if (!(mem[0x0055f] & (0x10 << fdc.us))) { |
| if (pic.pi[1].isr & PIC_INT41) { | CPU_IP--; |
| I286_IP--; | CPU_REMCLOCK -= 1000; |
| I286_REMCLOCK -= 1000; | } |
| } | |
| break; | |
| } | } |
| } | } |
| return(1); | return(1); |
| Line 351 UINT MEMCALL biosfunc(UINT32 adrs) { | Line 448 UINT MEMCALL biosfunc(UINT32 adrs) { |
| return(1); | return(1); |
| case 0xfd802: // ブート | case 0xfd802: // ブート |
| bios_reinitbyswitch(); // ver0.27 | bios_reinitbyswitch(); |
| bios_vectorset(); // ver0.29 | bios_vectorset(); |
| bios_screeninit(); | |
| if (((pccore.model & PCMODELMASK) >= PCMODEL_VX) && | |
| (pccore.sound & 0x7e)) { | |
| iocore_out8(0x188, 0x27); | |
| iocore_out8(0x18a, 0x3f); | |
| } | |
| #if 1 // ver0.73 | |
| CPU_CS = 0xfd80; // SASI/SCSIリセット | |
| CPU_IP = 0x2400; | |
| #else | |
| 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; |
| #endif | |
| 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; | |
| I286_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); |
| } | } |
| if ((adrs >= 0xf9a00) && (adrs < 0x0f9a24)) { | if ((adrs >= 0xf9a00) && (adrs < 0x0f9a44)) { |
| if (!(adrs & 1)) { | if (!(adrs & 3)) { |
| bios_lio((BYTE)((adrs - 0xf9a00) >> 1)); | CPU_REMCLOCK -= 500; |
| bios_lio((REG8)((adrs - 0xf9a00) >> 2)); | |
| } | |
| else { | |
| if (nevent_iswork(NEVENT_GDCSLAVE)) { | |
| CPU_IP--; | |
| CPU_REMCLOCK = -1; | |
| return(1); | |
| } | |
| } | } |
| return(0); | return(0); |
| } | } |
| Line 391 UINT MEMCALL biosfunc(UINT32 adrs) { | Line 506 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); |
| } | } |