source/src/vm/fmtowns/fmtowns.cpp

   1 /*
   2         FUJITSU FM-Towns Emulator 'eFMTowns'
   3
   4         Author : Kyuma Ohta <whatisthis.sowhat _at_ gmail.com>
   5         Date   : 2016.12.28 -
   6
   7         [ virtual machine ]
   8         History:
   9                 2016-12-28 Copy from eFMR-50.
  10 */
  11
  12 #include "fmtowns.h"
  13 #include "../../emu.h"
  14 #include "../device.h"
  15 #include "../event.h"
  16
  17 //#include "../hd46505.h"
  18 #include "../i8251.h"
  19 #include "../i8253.h"
  20 #include "../i8259.h"
  21
  22 #include "../i386_np21.h"
  23 //#include "../i386.h"
  24
  25 #include "../io.h"
  26 #include "../mb8877.h"
  27 #include "../msm58321.h"
  28 #include "../noise.h"
  29 #include "../pcm1bit.h"
  30 #include "../harddisk.h"
  31 #include "../scsi_hdd.h"
  32 #include "./towns_scsi_host.h"
  33 #include "../upd71071.h"
  34
  35 #include "./cdrom.h"
  36 #include "./crtc.h"
  37 #include "./dictionary.h"
  38 #include "./dmac.h"
  39 #include "./towns_memory.h"
  40 #include "./sprite.h"
  41 #include "./sysrom.h"
  42 #include "./vram.h"
  43
  44 // Electric Volume
  45 #include "mb87078.h"
  46 //YM-2612 "OPN2"
  47 //#include "../ym2612.h"
  48 //RF5C68 PCM
  49 #include "rf5c68.h"
  50 //AD7820 ADC
  51 #include "ad7820kr.h"
  52 #include "ym2612.h"
  53 // 80387?
  54
  55 #ifdef USE_DEBUGGER
  56 #include "../debugger.h"
  57 #endif
  58
  59 #include "./adpcm.h"
  60 //#include "./cdc.h"
  61 #include "./floppy.h"
  62 #include "./fontroms.h"
  63 #include "./joystick.h"
  64 #include "./joypad_2btn.h"
  65 #include "./joypad_6btn.h"
  66 #include "./keyboard.h"
  67 #include "./mouse.h"
  68 #include "./msdosrom.h"
  69 #include "./scsi.h"
  70 #include "./serialrom.h"
  71 #include "./timer.h"
  72 #include "./iccard.h"
  73
  74 #include "./planevram.h"
  75
  76 // ----------------------------------------------------------------------------
  77 // initialize
  78 // ----------------------------------------------------------------------------
  79 using FMTOWNS::ADPCM;
  80 //using FMTOWNS::CDC;
  81 using FMTOWNS::DICTIONARY;
  82 using FMTOWNS::FLOPPY;
  83 using FMTOWNS::FONT_ROMS;
  84 using FMTOWNS::JOYSTICK;
  85 using FMTOWNS::JOYPAD_2BTN;
  86 using FMTOWNS::JOYPAD_6BTN;
  87
  88 using FMTOWNS::KEYBOARD;
  89 using FMTOWNS::MOUSE;
  90 using FMTOWNS::MSDOSROM;
  91 using FMTOWNS::SCSI;
  92 using FMTOWNS::SERIAL_ROM;
  93 using FMTOWNS::SYSROM;
  94 using FMTOWNS::TIMER;
  95 using FMTOWNS::TOWNS_ICCARD;
  96
  97 using FMTOWNS::TOWNS_CDROM;
  98 using FMTOWNS::TOWNS_CRTC;
  99 using FMTOWNS::TOWNS_DMAC;
 100 using FMTOWNS::TOWNS_MEMORY;
 101 using FMTOWNS::TOWNS_SCSI_HOST;
 102 using FMTOWNS::TOWNS_SPRITE;
 103 using FMTOWNS::TOWNS_VRAM;
 104 using FMTOWNS::PLANEVRAM;
 105
 106
 107 VM::VM(EMU_TEMPLATE* parent_emu) : VM_TEMPLATE(parent_emu)
 108 {
 109 /*
 110         Machine ID & CPU ID
 111
 112         FMR-50FD/HD/LT  0xF8
 113         FMR-50FX/HX     0xE0
 114         FMR-50SFX/SHX   0xE8
 115         FMR-50LT        0xF8
 116         FMR-50NBX       0x28
 117         FMR-50NB        0x60
 118         FMR-50NE/T      0x08
 119         FMR-CARD        0x70
 120
 121         80286           0x00
 122         80386           0x01
 123         80386SX         0x03
 124         80486           0x02
 125 */
 126
 127         // create devices
 128         //first_device = last_device = nullptr;
 129         dummy = new DEVICE(this, emu);  // must be 1st device
 130         event = new EVENT(this, emu);   // must be 2nd device
 131 #if defined(_USE_QT)
 132         dummy->set_device_name(_T("1st Dummy"));
 133         event->set_device_name(_T("EVENT"));
 134 #endif
 135
 136         cpu = new I386(this, emu);
 137 #if defined(_USE_QT)
 138   #if defined(HAS_I386)
 139         cpu->set_device_name(_T("CPU(i386)"));
 140   #elif defined(HAS_I486)
 141         cpu->set_device_name(_T("CPU(i486)"));
 142   #elif defined(HAS_PENTIUM)
 143         cpu->set_device_name(_T("CPU(Pentium)"));
 144   #endif
 145 #endif
 146
 147         io = new IO(this, emu);
 148         io->space = _IO_SPACE;
 149         memory->bus_width = _IO_BUS_WIDTH;
 150
 151         crtc = new TOWNS_CRTC(this, emu);
 152         cdrom = new TOWNS_CDROM(this, emu);
 153
 154         memory = new TOWNS_MEMORY(this, emu);
 155         memory->space = _MEMORY_SPACE;
 156         memory->bank_size = _MEMORY_BANK_SIZE;
 157         memory->bus_width = _MEMORY_BUS_WIDTH;
 158
 159         vram = new TOWNS_VRAM(this, emu);
 160         sprite = new TOWNS_SPRITE(this, emu);
 161         sysrom = new SYSROM(this, emu);
 162         msdosrom = new MSDOSROM(this, emu);
 163         fontrom = new FONT_ROMS(this, emu);
 164         dictionary = new DICTIONARY(this, emu);
 165 #if defined(HAS_20PIX_FONTS)
 166         fontrom_20pix = new FONT_ROM_20PIX(this, emu);
 167 #endif
 168         serialrom = new SERIAL_ROM(this, emu);
 169
 170         adpcm = new ADPCM(this, emu);
 171 //      mixer = new MIXER(this, emu); // Pseudo mixer.
 172
 173         planevram = new PLANEVRAM(this, emu);
 174
 175         adc = new AD7820KR(this, emu);
 176         rf5c68 = new RF5C68(this, emu);
 177         e_volumes[0] = new MB87078(this, emu);
 178         e_volumes[1] = new MB87078(this, emu);
 179
 180         sio = new I8251(this, emu);
 181         pit0 = new I8253(this, emu);
 182         pit1 = new I8253(this, emu);
 183         pic = new I8259(this, emu);
 184         fdc = new MB8877(this, emu);
 185         rtc = new MSM58321(this, emu);
 186         beep = new PCM1BIT(this, emu);
 187         opn2 = new YM2612(this, emu);
 188
 189         seek_sound = new NOISE(this, emu);
 190         head_up_sound = new NOISE(this, emu);
 191         head_down_sound = new NOISE(this, emu);
 192
 193 //      scsi_host = new TOWNS_SCSI_HOST(this, emu);
 194         scsi_host = new SCSI_HOST(this, emu);
 195
 196         for(int i = 0; i < 7; i++) {
 197                 scsi_hdd[i] = nullptr;
 198         }
 199 #if defined(USE_HARD_DISK)
 200         for(int i = 0; i < USE_HARD_DISK; i++) {
 201                 scsi_hdd[i] = new SCSI_HDD(this, emu);
 202                 scsi_hdd[i]->set_device_name(_T("SCSI Hard Disk Drive #%d"), i + 1);
 203                 scsi_hdd[i]->scsi_id = i ;
 204                 scsi_hdd[i]->set_disk_handler(0, new HARDDISK(emu));
 205                 scsi_hdd[i]->set_context_interface(scsi_host);
 206                 my_sprintf_s(scsi_hdd[i]->vendor_id, 9, "FUJITSU");
 207                 my_sprintf_s(scsi_hdd[i]->product_id, 17, "SCSI-HDD");
 208                 scsi_host->set_context_target(scsi_hdd[i]);
 209         }
 210 #endif
 211         dma = new TOWNS_DMAC(this, emu);
 212         extra_dma = new TOWNS_DMAC(this, emu);
 213
 214         floppy = new FLOPPY(this, emu);
 215         keyboard = new KEYBOARD(this, emu);
 216         joystick = new JOYSTICK(this, emu);
 217         scsi = new SCSI(this, emu);
 218         timer = new TIMER(this, emu);
 219
 220         iccard1 = new TOWNS_ICCARD(this, emu);
 221 #if 0
 222         iccard2 = new TOWNS_ICCARD(this, emu);
 223 #else
 224         iccard2 = nullptr;
 225 #endif
 226         for(int i = 0; i < 2; i++) {
 227                 joypad_2btn[i] = new JOYPAD_2BTN(this, emu);
 228                 joypad_6btn[i] = new JOYPAD_6BTN(this, emu);
 229                 mouse[i] = new MOUSE(this, emu);
 230         }
 231
 232         uint16_t machine_id = 0x0100; // FM-Towns1
 233         uint16_t cpu_id = 0x0001;     // i386DX
 234         uint32_t cpu_clock = 16000 * 1000; // 16MHz
 235 #if defined(_FMTOWNS1_2ND_GEN)
 236         machine_id = 0x0200;   // 1F/2F/1H/2H
 237 #elif defined(_FMTOWNS_UX_VARIANTS)
 238         machine_id = 0x0300;   // UX10/20/40
 239         cpu_id = 0x0003;       // i386SX
 240 #elif defined(_FMTOWNS1_3RD_GEN)
 241         machine_id = 0x0400;  // 10F/20F.40H/80H
 242 #elif defined(_FMTOWNS2_CX_VARIANTS)
 243         machine_id = 0x0500;  // CX10/20/30/40
 244 #elif defined(_FMTOWNS_UG_VARIANTS)
 245         machine_id = 0x0600;  // UG10/20/40/80
 246         cpu_id = 0x0003;      // i386SX
 247         cpu_clock = 20000 * 1000; // 20MHz
 248 #elif defined(_FMTOWNS_HR_VARIANTS)
 249         machine_id = 0x0700;
 250         cpu_id = 0x0002;      // i486SX
 251         cpu_clock = 20000 * 1000; // 20MHz
 252 #elif defined(_FMTOWNS_HG_VARIANTS)
 253         machine_id = 0x0800;
 254         cpu_clock = 20000 * 1000; // 20MHz
 255 #elif defined(_FMTOWNS_SG_VARIANTS)
 256         machine_id = 0x0800; // OK?
 257 #elif defined(_FMTOWNS_SR_VARIANTS)
 258         machine_id = 0x0700; // OK?
 259         cpu_id = 0x0002;      // i486SX
 260         cpu_clock = 20000 * 1000; // 20MHz
 261 #elif defined(_FMTOWNS_UR_VARIANTS)
 262         machine_id = 0x0900;  // UR10/20/40/80
 263         cpu_id = 0x0002;      // i486DX
 264         cpu_clock = 20000 * 1000; // ToDo: Correct frequency.
 265 #elif defined(_FMTOWNS_MA_VARIANTS)
 266         machine_id = 0x0b00; // OK?
 267         cpu_id = 0x0002;      // i486SX
 268         cpu_clock = 33000 * 1000; // 33MHz
 269 #elif defined(_FMTOWNS_ME_VARIANTS)
 270         machine_id = 0x0d00; // OK?
 271         cpu_id = 0x0002;      // i486SX
 272         cpu_clock = 25000 * 1000; // 25MHz
 273 #elif defined(_FMTOWNS_MF_VARIANTS)
 274         machine_id = 0x0f00; // OK?
 275         cpu_id = 0x0002;      // i486SX
 276         cpu_clock = 33000 * 1000; // 33MHz
 277 #elif defined(_FMTOWNS_MX_VARIANTS)
 278         machine_id = 0x0c00; // OK?
 279         cpu_id = 0x0002;      // i486DX (With FPU?)
 280         cpu_clock = 66000 * 1000; // 66MHz
 281 #elif defined(_FMTOWNS_HC_VARIANTS)
 282         // 20210227 K.O
 283         // From FMTowns::MachineID()  of TSUGARU,
 284         // git 83d4ec2309ac9fcbb8c01f26061ff0d49c5321e4.
 285         machine_id = 0x1100; // OK?
 286         cpu_id = 0x0002;      // Pentium (With FPU?)
 287         cpu_clock = 50000 * 1000; // ToDo: Correctness frequency.
 288 #else
 289         // ToDo: Pentium Model (After HB).
 290
 291 #endif
 292
 293         event->set_frames_per_sec(FRAMES_PER_SEC);
 294         event->set_lines_per_frame(LINES_PER_FRAME);
 295
 296         set_machine_type(machine_id, cpu_id);
 297         // set contexts
 298         event->set_context_cpu(cpu, cpu_clock);
 299
 300         adc_in_ch = -1;
 301         line_in_ch = -1;
 302         modem_in_ch = -1;
 303         mic_in_ch = -1;
 304
 305         // Use pseudo mixer instead of event.Due to using ADC.
 306         // Temporally not use mixer.
 307         event->set_context_sound(beep);
 308         event->set_context_sound(opn2);
 309         event->set_context_sound(rf5c68);
 310         event->set_context_sound(cdrom);
 311
 312         fdc->set_context_noise_seek(seek_sound);
 313         fdc->set_context_noise_head_down(head_down_sound);
 314         fdc->set_context_noise_head_up(head_up_sound);
 315         event->set_context_sound(seek_sound);
 316         event->set_context_sound(head_down_sound);
 317         event->set_context_sound(head_up_sound);
 318
 319 #ifdef USE_DEBUGGER
 320         pit0->set_context_debugger(new DEBUGGER(this, emu));
 321         pit1->set_context_debugger(new DEBUGGER(this, emu));
 322 #endif
 323         pit0->set_context_ch0(timer, SIG_TIMER_CH0, 1);
 324         pit0->set_context_ch1(timer, SIG_TIMER_CH1, 1);
 325         pit0->set_context_ch2(beep,  SIG_PCM1BIT_SIGNAL, 1);
 326         pit0->set_constant_clock(0, 307200);
 327         pit0->set_constant_clock(1, 307200);
 328         pit0->set_constant_clock(2, 307200);
 329         pit1->set_constant_clock(0, 1229900);
 330         pit1->set_constant_clock(1, 1229900);
 331         pit1->set_constant_clock(2, 1229900);
 332 //      pic->set_context_cpu(cpu);
 333         pic->set_context_cpu(memory);
 334         fdc->set_context_irq(floppy, SIG_FLOPPY_IRQ, 1);
 335         rtc->set_context_data(timer, SIG_TIMER_RTC, 0x0f, 0);
 336         rtc->set_context_busy(timer, SIG_TIMER_RTC_BUSY, 0x80);
 337         scsi_host->set_context_irq(scsi, SIG_SCSI_IRQ, 1);
 338         scsi_host->set_context_drq(scsi, SIG_SCSI_DRQ, 1);
 339         scsi_host->set_context_drq(keyboard, SIG_KEYBOARD_BOOTSEQ_END, 1);
 340
 341         dma->set_context_memory(memory);
 342         dma->set_context_ch0(fdc);
 343         dma->set_context_ch1(scsi_host);
 344         //dma->set_context_ch2(printer);
 345         dma->set_context_ch3(cdrom);
 346         dma->set_context_tc1(scsi, SIG_SCSI_EOT, 0xffffffff);
 347         dma->set_context_tc3(cdrom, SIG_TOWNS_CDROM_DMAINT, 0xffffffff);
 348         dma->set_context_ack3(cdrom, SIG_TOWNS_CDROM_DMAACK, 0xffffffff);
 349
 350         dma->set_context_ube1(scsi_host, SIG_SCSI_16BIT_BUS, 0x02);
 351
 352         dma->set_context_child_dma(extra_dma);
 353
 354         floppy->set_context_fdc(fdc);
 355
 356         sprite->set_context_vram(vram);
 357         sprite->set_context_font(fontrom);
 358         sprite->set_context_crtc(crtc);
 359 #ifdef USE_DEBUGGER
 360         sprite->set_context_debugger(new DEBUGGER(this, emu));
 361 #endif
 362
 363         planevram->set_context_vram(vram);
 364         planevram->set_context_sprite(sprite);
 365         planevram->set_context_crtc(crtc);
 366
 367         crtc->set_context_sprite(sprite);
 368         crtc->set_context_vram(vram);
 369         crtc->set_context_font(fontrom);
 370
 371 //      e_volumes[0]->set_context_device(0, line_in, 0,
 372 //                                                                       MB87078_TYPE_MASK_LEFT);
 373 //      e_volumes[0]->set_context_device(1, line_in, 0,
 374 //                                                                       MB87078_TYPE_MASK_RIGHT);
 375         e_volumes[1]->set_context_device(0, cdrom, 0,
 376                                                                          MB87078_TYPE_SET_LEFT, SIG_TOWNS_CDROM_MUTE_L,
 377                                                                          0xffffffff,
 378                                                                          0xffffffff,
 379                                                                          false
 380                 );
 381         e_volumes[1]->set_context_device(1, cdrom, 0,
 382                                                                          MB87078_TYPE_SET_RIGHT, SIG_TOWNS_CDROM_MUTE_R,
 383                                                                          0xffffffff,
 384                                                                          0xffffffff,
 385                                                                          false
 386                 );
 387
 388         memory->set_context_cpu(cpu);
 389         memory->set_context_dmac(dma);
 390         memory->set_context_vram(vram);
 391         memory->set_context_planevram(planevram);
 392         memory->set_context_crtc(crtc);
 393         memory->set_context_system_rom(sysrom);
 394         memory->set_context_msdos(msdosrom);
 395         memory->set_context_dictionary(dictionary);
 396         memory->set_context_font_rom(fontrom);
 397         memory->set_context_timer(timer);
 398         memory->set_context_serial_rom(serialrom);
 399         memory->set_context_sprite(sprite);
 400         memory->set_context_pcm(rf5c68);
 401         memory->set_context_iccard(iccard1, 0);
 402         memory->set_context_iccard(iccard2, 1);
 403
 404         adpcm->set_context_opn2(opn2);
 405         adpcm->set_context_rf5c68(rf5c68);
 406         adpcm->set_context_adc(adc);
 407
 408         rf5c68->set_context_interrupt_boundary(adpcm, SIG_ADPCM_WRITE_INTERRUPT, 0xffffffff);
 409 #ifdef USE_DEBUGGER
 410         rf5c68->set_context_debugger(new DEBUGGER(this, emu));
 411 #endif
 412         opn2->set_context_irq(adpcm, SIG_ADPCM_OPX_INTR, 0xffffffff);
 413
 414         adc->set_sample_rate(19200);
 415         adc->set_sound_bank(-1);
 416         adc->set_context_interrupt(adpcm, SIG_ADPCM_ADC_INTR, 0xffffffff);
 417
 418         scsi->set_context_dma(dma);
 419         scsi->set_context_host(scsi_host);
 420         scsi->set_context_pic(pic);
 421         timer->set_context_pcm(beep);
 422         timer->set_context_rtc(rtc);
 423         //timer->set_context_halt_line(cpu, SIG_CPU_HALTREQ, 0xffffffff);
 424         timer->set_context_halt_line(cpu, SIG_CPU_BUSREQ, 0xffffffff);
 425
 426         for(int i = 0; i < 2; i++) {
 427                 // type =
 428                 // 0: Towns PAD 2buttons
 429                 // 1: Towns PAD 6buttons
 430                 // 2: Towns MOUSE
 431                 // 3: Analog Pad (reserved)
 432                 // 4: Libble Rabble stick (reserved)
 433                 joystick->set_context_joystick(i, joypad_2btn[i]);
 434                 joystick->set_context_joystick(i, joypad_6btn[i]);
 435                 joystick->set_context_joystick(i, mouse[i]);
 436         }
 437 #ifdef USE_DEBUGGER
 438         joystick->set_context_debugger(new DEBUGGER(this, emu));
 439 #endif
 440         // ToDo: Selective by config.
 441         for(int i = 0; i < 2; i++) {
 442                 joypad_2btn[i]->set_context_pad_num(i);
 443                 joypad_2btn[i]->set_context_parent_port(i, joystick, 0, 0xff);
 444                 joypad_2btn[i]->set_negative_logic(true);
 445                 joypad_2btn[i]->set_enable(true);
 446         }
 447         for(int i = 0; i < 2; i++) {
 448                 joypad_6btn[i]->set_context_pad_num(i);
 449                 joypad_6btn[i]->set_context_parent_port(i, joystick, 0, 0xff);
 450                 joypad_6btn[i]->set_negative_logic(true);
 451                 joypad_6btn[i]->set_enable(false);
 452         }
 453         for(int i = 0; i < 2; i++) {
 454                 mouse[i]->set_context_pad_num(i);
 455                 mouse[i]->set_context_parent_port(i, joystick, 0, 0xff);
 456                 mouse[i]->set_negative_logic(true);
 457                 mouse[i]->set_enable(false);
 458         }
 459         joystick->set_using_pad(0, -1);
 460         joystick->set_using_pad(1, -1);
 461
 462         // cpu bus
 463         cpu->set_context_mem(memory);
 464         cpu->set_context_io(io);
 465         cpu->set_context_intr(pic);
 466         cpu->set_context_dma(dma);
 467         cpu->set_context_bios(nullptr);
 468         cpu->set_context_extreset(memory, SIG_FMTOWNS_NOTIFY_RESET, 0xffffffff);
 469 #ifdef USE_DEBUGGER
 470         cpu->set_context_debugger(new DEBUGGER(this, emu));
 471 #endif
 472         // Interrupts
 473         // IRQ0  : TIMER
 474         // IRQ1  : KEYBOARD
 475         // IRQ2  : USART (ToDo)
 476         // IRQ3  : EXTRA USART (ToDo)
 477         // IRQ4  : EXTRA I/O (Maybe not implement)
 478         // IRQ5  : EXTRA I/O (Maybe not implement)
 479         // IRQ6  : FDC
 480         // IRQ7  : Deisy chain (to IRQ8 - 15)
 481         timer->set_context_intr_line(pic, SIG_I8259_CHIP0 | SIG_I8259_IR0, 0xffffffff);
 482         keyboard->set_context_intr_line(pic, SIG_I8259_CHIP0 | SIG_I8259_IR1, 0xffffffff);
 483         floppy->set_context_intr_line(pic, SIG_I8259_CHIP0 | SIG_I8259_IR6, 0xffffffff);
 484
 485         // IRQ8  : SCSI (-> scsi.cpp)
 486         // IRQ9  : CDC/CDROM
 487         // IRQ10 : EXTRA I/O (Maybe not implement)
 488         // IRQ11 : VSYNC
 489         // IRQ12 : PRINTER (ToDo)
 490         // IRQ13 : ADPCM AND OPN2 (Route to adpcm.cpp)
 491         // IRQ14 : EXTRA I/O (Maybe not implement)
 492         // IRQ15 : RESERVED.
 493         cdrom->set_context_mpuint_line(pic, SIG_I8259_CHIP1 | SIG_I8259_IR1, 0xffffffff);
 494         crtc->set_context_vsync(pic, SIG_I8259_CHIP1 | SIG_I8259_IR3, 0xffffffff);
 495         adpcm->set_context_intr_line(pic, SIG_I8259_CHIP1 | SIG_I8259_IR5, 0xffffffff);
 496
 497         // DMA0  : FDC/DRQ
 498         // DMA1  : SCSI (-> scsi.cpp)
 499         // DMA2  : PRINTER (ToDo)
 500         // DMA3  : CDC/CDROM
 501         // EXTRA DMA0 : EXTRA SLOT (Maybe not implement)
 502         // EXTRA DMA1 : Reserved
 503         // EXTRA DMA2 : Reserved
 504         // EXTRA DMA3 : Reserved
 505         fdc->set_context_drq(dma, SIG_UPD71071_CH0, 1);
 506         fdc->set_context_drq(keyboard, SIG_KEYBOARD_BOOTSEQ_END, 1);
 507         cdrom->set_context_drq_line(dma, SIG_UPD71071_CH3, 0xff);
 508         cdrom->set_context_drq_line(keyboard, SIG_KEYBOARD_BOOTSEQ_END, 1);
 509
 510         // NMI0 : KEYBOARD (RAS)
 511         // NMI1 : Extra SLOT (Maybe not implement)
 512         keyboard->set_context_nmi_line(memory, SIG_CPU_NMI, 0xffffffff);
 513
 514         cdrom->set_context_dmac(dma);
 515         // For Debugging, will remove 20200822 K.O
 516         cdrom->set_context_cpu(cpu);
 517
 518         // i/o bus
 519         io->set_iowait_range_rw(0x0000, 0xffff, 6); // ToDo: May variable wait.
 520
 521         io->set_iomap_alias_rw (0x0000, pic, I8259_ADDR_CHIP0 | 0);
 522         io->set_iomap_alias_rw (0x0002, pic, I8259_ADDR_CHIP0 | 1);
 523         io->set_iomap_alias_rw (0x0010, pic, I8259_ADDR_CHIP1 | 0);
 524         io->set_iomap_alias_rw (0x0012, pic, I8259_ADDR_CHIP1 | 1);
 525
 526         io->set_iomap_range_rw (0x0020, 0x0025, memory);
 527         io->set_iomap_range_rw (0x0026, 0x0027, timer);  // Freerun counter
 528         io->set_iomap_single_rw(0x0028, memory);
 529
 530         io->set_iomap_range_r  (0x0030, 0x0031, memory);        // cpu id / machine id
 531         io->set_iomap_single_rw(0x0032, memory);        // serial rom (routed from memory)
 532         io->set_iomap_single_r (0x0034, scsi);  // ENABLE/ UNABLE to WORD DMA for SCSI
 533
 534         io->set_iomap_alias_rw(0x0040, pit0, 0);
 535         io->set_iomap_alias_rw(0x0042, pit0, 1);
 536         io->set_iomap_alias_rw(0x0044, pit0, 2);
 537         io->set_iomap_alias_rw(0x0046, pit0, 3);
 538         io->set_iomap_alias_rw(0x0050, pit1, 0);
 539         io->set_iomap_alias_rw(0x0052, pit1, 1);
 540         io->set_iomap_alias_rw(0x0054, pit1, 2);
 541         io->set_iomap_alias_rw(0x0056, pit1, 3);
 542
 543         io->set_iomap_single_rw(0x0060, timer); // Beep and interrupts register
 544         io->set_iomap_single_rw(0x0068, timer); // Interval timer register2 (after Towns 10F).
 545         io->set_iomap_single_rw(0x006a, timer); // Interval timer register2 (after Towns 10F).
 546         io->set_iomap_single_rw(0x006b, timer); // Interval timer register2 (after Towns 10F).
 547         io->set_iomap_single_rw(0x006c, timer); // 1uS wait register (after Towns 10F).
 548
 549         io->set_iomap_single_rw(0x0070, timer); // RTC DATA
 550         io->set_iomap_single_w (0x0080, timer); // RTC COMMAND
 551
 552         io->set_iomap_range_rw (0x00a0, 0x00af, dma);
 553         io->set_iomap_range_rw (0x00b0, 0x00bf, extra_dma);
 554
 555         io->set_iomap_single_rw(0x00c0, memory);   // CACHE CONTROLLER
 556         io->set_iomap_single_rw(0x00c2, memory);   // CACHE CONTROLLER
 557
 558         io->set_iomap_alias_rw (0x0200, fdc, 0);  // STATUS/COMMAND
 559         io->set_iomap_alias_rw (0x0202, fdc, 1);  // TRACK
 560         io->set_iomap_alias_rw (0x0204, fdc, 2);  // SECTOR
 561         io->set_iomap_alias_rw (0x0206, fdc, 3);  // DATA
 562         io->set_iomap_single_rw(0x0208, floppy);  // DRIVE STATUS / DRIVE CONTROL
 563         io->set_iomap_single_rw(0x020c, floppy);  // DRIVE SELECT
 564         io->set_iomap_single_r (0x020d, floppy);  // FDDVEXT (after HG/HR).
 565         io->set_iomap_single_rw(0x020e, floppy);  // Towns drive SW
 566
 567         io->set_iomap_range_rw (0x0400, 0x0404, memory); // System Status
 568 //      io->set_iomap_range_rw (0x0406, 0x043f, memory); // Reserved
 569
 570         io->set_iomap_range_rw(0x0440, 0x0443, crtc); // CRTC
 571         io->set_iomap_range_rw(0x0448, 0x044f, crtc); // VIDEO OUT (CRTC)
 572
 573         io->set_iomap_range_rw(0x0450, 0x0452, sprite); // SPRITE
 574
 575         io->set_iomap_single_rw(0x0458, vram);         // VRAM ACCESS CONTROLLER (ADDRESS)
 576         io->set_iomap_range_rw (0x045a, 0x045b, vram); // VRAM ACCESS CONTROLLER (DATA)
 577
 578         io->set_iomap_single_rw(0x0480, memory); //  MEMORY REGISTER
 579         io->set_iomap_single_rw(0x0484, dictionary); // Dictionary
 580
 581         io->set_iomap_alias_r(0x48a, iccard1, 0); //
 582         //io->set_iomap_alias_rw(0x490, memory_card); // After Towns2
 583         //io->set_iomap_alias_rw(0x491, memory_card); // After Towns2
 584
 585         io->set_iomap_range_rw(0x04c0, 0x04c6, cdrom); // CDROM
 586         io->set_iomap_range_r (0x04cc, 0x04cd, cdrom); // CDROM
 587         // PAD, Sound
 588
 589         io->set_iomap_single_r(0x04d0, joystick); // Pad1
 590         io->set_iomap_single_r(0x04d2, joystick); // Pad 2
 591         io->set_iomap_single_w(0x04d6, joystick); // Pad out
 592
 593         io->set_iomap_single_rw(0x04d5, adpcm); // mute
 594         // OPN2(YM2612)
 595         io->set_iomap_alias_rw(0x04d8, opn2, 0); // STATUS(R)/Addrreg 0(W)
 596         io->set_iomap_alias_w (0x04da, opn2, 1);  // Datareg 0(W)
 597         io->set_iomap_alias_w (0x04dc, opn2, 2);  // Addrreg 1(W)
 598         io->set_iomap_alias_w (0x04de, opn2, 3);  // Datareg 1(W)
 599         // Electrical volume
 600         io->set_iomap_alias_rw(0x04e0, e_volumes[0], 0);
 601         io->set_iomap_alias_rw(0x04e1, e_volumes[0], 1);
 602         io->set_iomap_alias_rw(0x04e2, e_volumes[1], 0);
 603         io->set_iomap_alias_rw(0x04e3, e_volumes[1], 1);
 604
 605         // ADPCM
 606         io->set_iomap_range_rw(0x04e7, 0x04ec, adpcm); // A/D SAMPLING DATA REG
 607         io->set_iomap_range_rw(0x04f0, 0x04f8, rf5c68); // A/D SAMPLING DATA REG
 608
 609         io->set_iomap_single_rw(0x05c0, memory); // NMI MASK
 610         io->set_iomap_single_r (0x05c2, memory);  // NMI STATUS
 611         io->set_iomap_single_r (0x05c8, sprite); // TVRAM EMULATION
 612         io->set_iomap_single_w (0x05ca, crtc); // VSYNC INTERRUPT
 613
 614         io->set_iomap_single_rw(0x05e0, memory); // Hidden MEMORY WAIT REGISTER from AB.COM (Towns 1/2)
 615         io->set_iomap_single_rw(0x05e2, memory); // Hidden MEMORY WAIT REGISTER from AB.COM (After Towns 1H/1F/2H/2F )
 616         io->set_iomap_single_rw(0x05e6, memory); // Hidden VRAM WAIT REGISTER from TSUGARU (Maybe after Towns 10H/10F/20H/20F )
 617         io->set_iomap_single_r (0x05e8, memory); // RAM capacity register.(later Towns1H/2H/1F/2F).
 618         io->set_iomap_single_rw(0x05ec, memory); // RAM Wait register , ofcially after Towns2, but exists after Towns1H.
 619         io->set_iomap_single_r (0x05ed, memory); // Maximum clock register (After HR/HG).
 620         io->set_iomap_single_rw(0x05ee, vram);   // VRAM CACHE CONTROLLER
 621
 622         io->set_iomap_single_rw(0x0600, keyboard);
 623         io->set_iomap_single_rw(0x0602, keyboard);
 624         io->set_iomap_single_rw(0x0604, keyboard);
 625
 626         //io->set_iomap_single_rw(0x0800, printer);
 627         //io->set_iomap_single_rw(0x0802, printer);
 628         //io->set_iomap_single_rw(0x0804, printer);
 629
 630         io->set_iomap_alias_rw (0x0a00, sio, 0);
 631         io->set_iomap_alias_rw (0x0a02, sio, 1);
 632 //      io->set_iomap_single_r (0x0a04, serial);
 633 //      io->set_iomap_single_r (0x0a06, serial);
 634 //      io->set_iomap_single_w (0x0a08, serial);
 635 //      io->set_iomap_single_rw(0x0a0a, modem);
 636
 637         io->set_iomap_single_rw(0x0c30, scsi);
 638         io->set_iomap_single_rw(0x0c32, scsi);
 639         io->set_iomap_single_r (0x0c34, scsi);
 640
 641         io->set_iomap_range_rw (0x3000, 0x3fff, dictionary); // CMOS
 642
 643         io->set_iomap_range_rw (0xfd90, 0xfda0, crtc);  // Palette and CRTC
 644         io->set_iomap_single_r (0xfda2, crtc);  // CRTC
 645         io->set_iomap_single_rw(0xfda4, memory);        // memory
 646
 647         io->set_iomap_range_rw (0xff80, 0xff83, planevram);     // MMIO
 648         io->set_iomap_single_r (0xff84, planevram);     // MMIO
 649         io->set_iomap_single_rw(0xff86, planevram);     // MMIO
 650         io->set_iomap_single_rw(0xff88, memory);        // MMIO
 651         io->set_iomap_range_rw (0xff94, 0xff99, memory);        // MMIO
 652         io->set_iomap_range_r  (0xff9c, 0xff9d, memory);        // MMIO
 653         io->set_iomap_single_rw(0xff9e, memory);        // MMIO
 654         io->set_iomap_single_rw(0xffa0, planevram);     // MMIO
 655
 656 //      io->set_iomap_range_w (0xff94, 0xff95, fontrom);
 657 //      io->set_iomap_range_r (0xff96, 0xff97, fontrom);
 658
 659         // Vram allocation may be before initialize().
 660         // initialize all devices
 661 #if defined(__GIT_REPO_VERSION)
 662         set_git_repo_version(__GIT_REPO_VERSION);
 663 #endif
 664         // ToDo : Use config framework
 665         int exram_size = config.current_ram_size;
 666         if(exram_size < 1) {
 667                 if(machine_id < 0x0200) { // Model1 - 2H
 668                         exram_size = 6;
 669                 } else if(machine_id == 0x0500) { // CX
 670                         exram_size = 15;
 671                 } else if(machine_id < 0x0700) {  // 10F,20H
 672                         exram_size = 8;
 673                 } else if(machine_id == 0x0800) { // HG
 674                         exram_size = 15;
 675                 } else {
 676                         exram_size = 31;
 677                 }
 678         }
 679         if(exram_size < MIN_RAM_SIZE) {
 680                 exram_size = MIN_RAM_SIZE;
 681         }
 682
 683         memory->set_extra_ram_size(exram_size);
 684
 685 #if defined(WITH_I386SX)
 686         cpu->device_model = INTEL_80386;
 687 #elif defined(WITH_I486SX)
 688         cpu->device_model = INTEL_I486SX;
 689 #elif defined(WITH_I486DX)
 690         cpu->device_model = INTEL_I486DX;
 691 #elif defined(WITH_PENTIUM)
 692         cpu->device_model = INTEL_PENTIUM;
 693 #else
 694         // I386
 695         cpu->device_model = INTEL_80386;
 696 #endif
 697
 698         initialize_devices();
 699 //      cpu->set_address_mask(0xffffffff);
 700 }
 701
 702 VM::~VM()
 703 {
 704         // delete all devices
 705         release_devices();
 706 }
 707
 708 void VM::set_machine_type(uint16_t machine_id, uint16_t cpu_id)
 709 {
 710         if(memory != nullptr) {
 711                 memory->set_cpu_id(cpu_id);
 712                 memory->set_machine_id(machine_id);
 713         }
 714         if(crtc != nullptr) {
 715                 crtc->set_cpu_id(cpu_id);
 716                 crtc->set_machine_id(machine_id);
 717         }
 718         if(timer != nullptr) {
 719                 timer->set_cpu_id(cpu_id);
 720                 timer->set_machine_id(machine_id);
 721         }
 722         if(cdrom != nullptr) {
 723                 cdrom->set_cpu_id(cpu_id);
 724                 cdrom->set_machine_id(machine_id);
 725         }
 726         if(scsi != nullptr) {
 727                 scsi->set_cpu_id(cpu_id);
 728                 scsi->set_machine_id(machine_id);
 729         }
 730         if(serialrom != nullptr) {
 731                 serialrom->set_cpu_id(cpu_id);
 732                 serialrom->set_machine_id(machine_id);
 733         }
 734         if(floppy != nullptr) {
 735                 floppy->set_cpu_id(cpu_id);
 736                 floppy->set_machine_id(machine_id);
 737         }
 738 #if defined(HAS_20PIX_FONTS)
 739         if(fontrom_20pix != nullptr) {
 740                 fontrom_20pix->set_cpu_id(cpu_id);
 741                 fontrom_20pix->set_machine_id(machine_id);
 742         }
 743 #endif
 744         if(vram != nullptr) {
 745                 vram->set_cpu_id(cpu_id);
 746                 vram->set_machine_id(machine_id);
 747         }
 748
 749 }
 750
 751
 752 // ----------------------------------------------------------------------------
 753 // drive virtual machine
 754 // ----------------------------------------------------------------------------
 755
 756 void VM::reset()
 757 {
 758         // reset all devices
 759         boot_seq = false;
 760         VM_TEMPLATE::reset();
 761 //      cpu->set_address_mask(0xffffffff);
 762 }
 763
 764 void VM::special_reset(int num)
 765 {
 766         boot_seq = true;
 767
 768         // reset all devices
 769         VM_TEMPLATE::reset();
 770         //      cpu->set_address_mask(0xffffffff);
 771         __LIKELY_IF(keyboard != nullptr) {
 772                 keyboard->special_reset(num);
 773         }
 774 }
 775
 776 void VM::run()
 777 {
 778         __LIKELY_IF(event != nullptr) {
 779                 event->drive();
 780         }
 781 }
 782 void VM::process_boot_sequence(uint32_t val)
 783 {
 784         if(boot_seq) {
 785                 if(val != 0) {
 786                         if(keyboard != nullptr) {
 787                                 keyboard->write_signal(SIG_KEYBOARD_BOOTSEQ_END, 0xffffffff, 0xffffffff);
 788                         }
 789                         boot_seq = false;
 790                 }
 791         }
 792 }
 793
 794 // ----------------------------------------------------------------------------
 795 // debugger
 796 // ----------------------------------------------------------------------------
 797
 798 #ifdef USE_DEBUGGER
 799 DEVICE *VM::get_cpu(int index)
 800 {
 801         if(index == 0) {
 802                 return cpu;
 803         }
 804         return nullptr;
 805 }
 806 #endif
 807
 808 // ----------------------------------------------------------------------------
 809 // draw screen
 810 // ----------------------------------------------------------------------------
 811
 812 void VM::draw_screen()
 813 {
 814         __LIKELY_IF(crtc != nullptr) {
 815                 crtc->draw_screen();
 816         }
 817 }
 818
 819
 820 // ----------------------------------------------------------------------------
 821 // soud manager
 822 // ----------------------------------------------------------------------------
 823
 824 void VM::initialize_sound(int rate, int samples)
 825 {
 826 //      emu->lock_vm();
 827         // init sound manager
 828         event->initialize_sound(rate, samples);
 829
 830         // init sound gen
 831         beep->initialize_sound(rate, 8000);
 832
 833         // init OPN2
 834         // MASTER CLOCK MAYBE 600KHz * 12 = 7200KHz .
 835         // From FM-Towns Technical Databook (Rev.2), Page 201
 836         opn2->initialize_sound(rate, (int)(600.0e3 * 12.0) , samples, 0.0, 0.0);
 837         //opn2->initialize_sound(rate, (int)(8000.0e3) , samples, 0.0, 0.0);
 838         //opn2->initialize_sound(rate, (int)(600.0e3 * 6.0) , samples, 0.0, 0.0);
 839
 840         // init PCM
 841         rf5c68->initialize_sound(rate, samples);
 842
 843         // add_sound_in_source() must add after per initialize_sound().
 844         adc_in_ch = event->add_sound_in_source(rate, samples, 2);
 845         adc->set_sample_rate(19200);
 846         adc->set_sound_bank(adc_in_ch);
 847 #if 0
 848         mixer->set_context_out_line(adc_in_ch);
 849         mixer->set_context_sample_out(adc_in_ch, rate, samples); // Must be 2ch.
 850         // ToDo: Check recording sample rate & channels.
 851         mic_in_ch = event->add_sound_in_source(rate, samples, 2);
 852         mixer->set_context_mic_in(mic_in_ch, rate, samples);
 853
 854         line_in_ch = event->add_sound_in_source(rate, samples, 2);
 855         mixer->set_context_line_in(line_in_ch, rate, samples);
 856 #endif
 857 //      emu->unlock_vm();
 858 }
 859
 860 uint16_t* VM::create_sound(int* extra_frames)
 861 {
 862         __LIKELY_IF(event != nullptr) {
 863                 return event->create_sound(extra_frames);
 864         }
 865         return VM_TEMPLATE::create_sound(extra_frames);
 866 }
 867
 868 int VM::get_sound_buffer_ptr()
 869 {
 870         __LIKELY_IF(event != nullptr) {
 871                 return event->get_sound_buffer_ptr();
 872         }
 873         return VM_TEMPLATE::get_sound_buffer_ptr();
 874 }
 875
 876 void VM::clear_sound_in()
 877 {
 878         __UNLIKELY_IF(event == nullptr) return;
 879
 880         event->clear_sound_in_source(adc_in_ch);
 881         event->clear_sound_in_source(mic_in_ch);
 882         event->clear_sound_in_source(line_in_ch);
 883         return;
 884 }
 885
 886 int VM::get_sound_in_data(int ch, int32_t* dst, int expect_samples, int expect_rate, int expect_channels)
 887 {
 888         if(dst == nullptr) return 0;
 889         if(expect_samples <= 0) return 0;
 890         int n_ch = -1;
 891         switch(ch) {
 892         case 0x00:
 893                 n_ch = line_in_ch;
 894                 break;
 895         case 0x01:
 896                 n_ch = mic_in_ch;
 897                 break;
 898         case 0x100:
 899                 n_ch = adc_in_ch;
 900                 break;
 901         }
 902         if(n_ch < 0) return 0;
 903         int samples = 0;
 904         if(event != nullptr) {
 905                 samples = event->get_sound_in_data(n_ch, dst, expect_samples, expect_rate, expect_channels);
 906         }
 907         return samples;
 908 }
 909
 910 // Write to event's buffer
 911 int VM::sound_in(int ch, int32_t* src, int samples)
 912 {
 913         if(ch < 0) return 0;
 914         if(ch >= 2) return 0;
 915         int n_ch = -1;
 916         switch(ch) {
 917         case 0x100:  // ADC in from MIXER, not connected.
 918                 break;
 919         case 0x00: // LINE
 920                 n_ch = line_in_ch;
 921                 break;
 922         case 0x01: // MIC
 923                 n_ch = mic_in_ch;
 924                 break;
 925         }
 926         if(n_ch < 0) return 0;
 927
 928         int ss = 0;
 929         if(event != nullptr) {
 930                 emu->lock_vm();
 931                 ss =  event->write_sound_in_buffer(n_ch, src, samples);
 932                 emu->unlock_vm();
 933         }
 934         return ss;
 935 }
 936
 937 #if defined(USE_HARD_DISK)
 938 void VM::open_hard_disk(int drv, const _TCHAR* file_path)
 939 {
 940         if((drv < USE_HARD_DISK) && (drv < 8) && (drv >= 0)) {
 941                 if(scsi_hdd[drv] != nullptr) {
 942                         scsi_hdd[drv]->open(0, file_path, 512);
 943                 }
 944         }
 945 }
 946
 947 void VM::close_hard_disk(int drv)
 948 {
 949         if((drv < USE_HARD_DISK) && (drv < 8) && (drv >= 0)) {
 950                 if(scsi_hdd[drv] != nullptr) {
 951                         scsi_hdd[drv]->close(0);
 952                 }
 953         }
 954 }
 955
 956 bool VM::is_hard_disk_inserted(int drv)
 957 {
 958         if((drv < USE_HARD_DISK) && (drv < 8) && (drv >= 0)) {
 959                 if(scsi_hdd[drv] != nullptr) {
 960                         return scsi_hdd[drv]->mounted(0);
 961                 }
 962         }
 963         return false;
 964 }
 965
 966 uint32_t VM::is_hard_disk_accessed()
 967 {
 968         uint32_t status = 0;
 969
 970         for(int drv = 0; drv < USE_HARD_DISK; drv++) {
 971                 if(scsi_hdd[drv] != nullptr) {
 972                         if(scsi_hdd[drv]->accessed(0)) {
 973                                 status |= 1 << drv;
 974                         }
 975                 }
 976         }
 977         process_boot_sequence(1);
 978         return status;
 979 }
 980 #endif // USE_HARD_DISK
 981
 982 void VM::open_compact_disc(int drv, const _TCHAR* file_path)
 983 {
 984         if(cdrom != nullptr) {
 985                 cdrom->open(file_path);
 986         }
 987 }
 988
 989 void VM::close_compact_disc(int drv)
 990 {
 991         if(cdrom != nullptr) {
 992                 cdrom->close();
 993         }
 994 }
 995
 996 bool VM::is_compact_disc_inserted(int drv)
 997 {
 998         if(cdrom == nullptr) return false;
 999         return cdrom->mounted();
1000 }
1001
1002 uint32_t VM::is_compact_disc_accessed()
1003 {
1004         uint32_t status = cdrom->accessed();
1005         process_boot_sequence(1);
1006         return status;
1007 }
1008
1009 #ifdef USE_SOUND_VOLUME
1010 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
1011 {
1012 #ifndef HAS_LINEIN_SOUND
1013 //      if(ch >= 7) ch++;
1014 #endif
1015 #ifndef HAS_MIC_SOUND
1016 //      if(ch >= 8) ch++;
1017 #endif
1018 #ifndef HAS_MODEM_SOUND
1019 //      if(ch >= 9) ch++;
1020 #endif
1021 #ifndef HAS_2ND_ADPCM
1022 //      if(ch >= 10) ch++;
1023 #endif
1024         if(ch == 0) { // BEEP
1025                 if(beep != nullptr) {
1026                         beep->set_volume(0, decibel_l, decibel_r);
1027                 }
1028         }
1029         else if(ch == 1) { // CD-ROM
1030                 if(e_volumes[1] != nullptr) {
1031                         e_volumes[1]->set_volumes(0, decibel_l, 1, decibel_r);
1032                 } else if(cdrom != nullptr) {
1033                         cdrom->set_volume(0, decibel_l, decibel_r);
1034                 }
1035         }
1036         else if(ch == 2) { // OPN2
1037                 if(opn2 != nullptr) {
1038                         opn2->set_volume(0, decibel_l, decibel_r);
1039                 }
1040         }
1041         else if(ch == 3) { // ADPCM
1042                 if(rf5c68 != nullptr) {
1043                         rf5c68->set_volume(0, decibel_l, decibel_r);
1044                 }
1045         }
1046         else if(ch == 4) { // SEEK, HEAD UP / DOWN
1047                 if(seek_sound != nullptr) {
1048                         seek_sound->set_volume(0, decibel_l, decibel_r);
1049                 }
1050                 if(head_up_sound != nullptr) {
1051                         head_up_sound->set_volume(0, decibel_l, decibel_r);
1052                 }
1053                 if(head_down_sound != nullptr) {
1054                         head_down_sound->set_volume(0, decibel_l, decibel_r);
1055                 }
1056         }
1057 }
1058 #endif
1059
1060 // ----------------------------------------------------------------------------
1061 // notify key
1062 // ----------------------------------------------------------------------------
1063
1064 void VM::key_down(int code, bool repeat)
1065 {
1066         __LIKELY_IF(keyboard != nullptr) {
1067                 keyboard->key_down(code);
1068         }
1069 }
1070
1071 void VM::key_up(int code)
1072 {
1073         __LIKELY_IF(keyboard != nullptr) {
1074                 keyboard->key_up(code);
1075         }
1076 }
1077
1078 // ----------------------------------------------------------------------------
1079 // user interface
1080 // ----------------------------------------------------------------------------
1081 void VM::open_cart(int drv, const _TCHAR* file_path)
1082 {
1083         switch(drv) {
1084         case 0:
1085                 if(iccard1 != nullptr) {
1086                         iccard1->open_cart(file_path);
1087                 }
1088                 break;
1089         case 1:
1090                 if(iccard2 != nullptr) {
1091                         iccard2->open_cart(file_path);
1092                 }
1093                 break;
1094         }
1095 }
1096
1097 void VM::close_cart(int drv)
1098 {
1099         switch(drv) {
1100         case 0:
1101                 if(iccard1 != nullptr) {
1102                         iccard1->close_cart();
1103                 }
1104                 break;
1105         case 1:
1106                 if(iccard2 != nullptr) {
1107                         iccard2->close_cart();
1108                 }
1109                 break;
1110         }
1111 }
1112
1113 bool VM::is_cart_inserted(int drv)
1114 {
1115         switch(drv) {
1116         case 0:
1117                 if(iccard1 != nullptr) {
1118                         return iccard1->is_cart_inserted();
1119                 }
1120                 break;
1121         case 1:
1122                 if(iccard2 != nullptr) {
1123                         return iccard2->is_cart_inserted();
1124                 }
1125                 break;
1126         }
1127         return false;
1128 }
1129
1130 void VM::open_floppy_disk(int drv, const _TCHAR* file_path, int bank)
1131 {
1132
1133         if(fdc != nullptr) {
1134                 fdc->open_disk(drv, file_path, bank);
1135                 floppy->change_disk(drv);
1136         }
1137 }
1138
1139 void VM::close_floppy_disk(int drv)
1140 {
1141         if(fdc != nullptr) {
1142                 fdc->close_disk(drv);
1143         //      floppy->change_disk(drv);
1144         }
1145 }
1146 uint32_t VM::is_floppy_disk_accessed()
1147 {
1148         uint32_t val = fdc->read_signal(0);
1149         process_boot_sequence(val);
1150         return val;
1151 }
1152
1153 bool VM::is_floppy_disk_inserted(int drv)
1154 {
1155         if(fdc != nullptr) {
1156                 return fdc->is_disk_inserted(drv);
1157         }
1158         return VM_TEMPLATE::is_floppy_disk_inserted(drv);
1159 }
1160
1161 void VM::is_floppy_disk_protected(int drv, bool value)
1162 {
1163         __LIKELY_IF(fdc != nullptr) {
1164                 fdc->is_disk_protected(drv, value);
1165         }
1166 }
1167
1168 bool VM::is_floppy_disk_protected(int drv)
1169 {
1170         __LIKELY_IF(fdc != nullptr) {
1171                 return fdc->is_disk_protected(drv);
1172         }
1173         return VM_TEMPLATE::is_floppy_disk_protected(drv);
1174 }
1175
1176 bool VM::is_frame_skippable()
1177 {
1178         __LIKELY_IF(event != nullptr) {
1179                 return event->is_frame_skippable();
1180         }
1181         return VM_TEMPLATE::is_frame_skippable();
1182 }
1183
1184
1185 double VM::get_current_usec()
1186 {
1187         __LIKELY_IF(event != nullptr) {
1188                 return event->get_current_usec();
1189         }
1190         return VM_TEMPLATE::get_current_usec();
1191 }
1192
1193 uint64_t VM::get_current_clock_uint64()
1194 {
1195         __LIKELY_IF(event != nullptr) {
1196                 return event->get_current_clock_uint64();
1197         }
1198         return VM_TEMPLATE::get_current_clock_uint64();
1199 }
1200
1201 #define STATE_VERSION   4
1202
1203 bool VM::process_state(FILEIO* state_fio, bool loading)
1204 {
1205         if(!(VM_TEMPLATE::process_state_core(state_fio, loading, STATE_VERSION))) {
1206                 return false;
1207         }
1208
1209         // Machine specified.
1210         state_fio->StateValue(boot_seq);
1211
1212         if(loading) {
1213                 update_config();
1214         }
1215         return true;
1216 }