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         io->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         pit0->device_model = INTEL_8253;
 183
 184         pit1 = new I8253(this, emu);
 185         pit1->device_model = INTEL_8253;
 186
 187         pic = new I8259(this, emu);
 188         pic->num_chips = 2;
 189         fdc = new MB8877(this, emu);
 190         rtc = new MSM58321(this, emu);
 191         beep = new PCM1BIT(this, emu);
 192         opn2 = new YM2612(this, emu);
 193
 194         seek_sound = new NOISE(this, emu);
 195         head_up_sound = new NOISE(this, emu);
 196         head_down_sound = new NOISE(this, emu);
 197
 198 //      scsi_host = new TOWNS_SCSI_HOST(this, emu);
 199         scsi_host = new SCSI_HOST(this, emu);
 200
 201         for(int i = 0; i < 7; i++) {
 202                 scsi_hdd[i] = nullptr;
 203         }
 204 #if defined(USE_HARD_DISK)
 205         for(int i = 0; i < USE_HARD_DISK; i++) {
 206                 scsi_hdd[i] = new SCSI_HDD(this, emu);
 207                 scsi_hdd[i]->set_device_name(_T("SCSI Hard Disk Drive #%d"), i + 1);
 208                 scsi_hdd[i]->scsi_id = i ;
 209                 scsi_hdd[i]->set_disk_handler(0, new HARDDISK(emu));
 210                 scsi_hdd[i]->set_context_interface(scsi_host);
 211                 my_sprintf_s(scsi_hdd[i]->vendor_id, 9, "FUJITSU");
 212                 my_sprintf_s(scsi_hdd[i]->product_id, 17, "SCSI-HDD");
 213                 scsi_host->set_context_target(scsi_hdd[i]);
 214         }
 215 #endif
 216         dma = new TOWNS_DMAC(this, emu);
 217         extra_dma = new TOWNS_DMAC(this, emu);
 218
 219         floppy = new FLOPPY(this, emu);
 220         keyboard = new KEYBOARD(this, emu);
 221         joystick = new JOYSTICK(this, emu);
 222         scsi = new SCSI(this, emu);
 223         timer = new TIMER(this, emu);
 224
 225         iccard1 = new TOWNS_ICCARD(this, emu);
 226 #if 0
 227         iccard2 = new TOWNS_ICCARD(this, emu);
 228 #else
 229         iccard2 = nullptr;
 230 #endif
 231         for(int i = 0; i < 2; i++) {
 232                 joypad_2btn[i] = new JOYPAD_2BTN(this, emu);
 233                 joypad_6btn[i] = new JOYPAD_6BTN(this, emu);
 234                 mouse[i] = new MOUSE(this, emu);
 235         }
 236
 237         uint16_t machine_id = 0x0100; // FM-Towns1
 238         uint16_t cpu_id = 0x0001;     // i386DX
 239         uint32_t cpu_clock = 16000 * 1000; // 16MHz
 240 #if defined(_FMTOWNS1_2ND_GEN)
 241         machine_id = 0x0200;   // 1F/2F/1H/2H
 242 #elif defined(_FMTOWNS_UX_VARIANTS)
 243         machine_id = 0x0300;   // UX10/20/40
 244         cpu_id = 0x0003;       // i386SX
 245 #elif defined(_FMTOWNS1_3RD_GEN)
 246         machine_id = 0x0400;  // 10F/20F.40H/80H
 247 #elif defined(_FMTOWNS2_CX_VARIANTS)
 248         machine_id = 0x0500;  // CX10/20/30/40
 249 #elif defined(_FMTOWNS_UG_VARIANTS)
 250         machine_id = 0x0600;  // UG10/20/40/80
 251         cpu_id = 0x0003;      // i386SX
 252         cpu_clock = 20000 * 1000; // 20MHz
 253 #elif defined(_FMTOWNS_HR_VARIANTS)
 254         machine_id = 0x0700;
 255         cpu_id = 0x0002;      // i486SX
 256         cpu_clock = 20000 * 1000; // 20MHz
 257 #elif defined(_FMTOWNS_HG_VARIANTS)
 258         machine_id = 0x0800;
 259         cpu_clock = 20000 * 1000; // 20MHz
 260 #elif defined(_FMTOWNS_SG_VARIANTS)
 261         machine_id = 0x0800; // OK?
 262 #elif defined(_FMTOWNS_SR_VARIANTS)
 263         machine_id = 0x0700; // OK?
 264         cpu_id = 0x0002;      // i486SX
 265         cpu_clock = 20000 * 1000; // 20MHz
 266 #elif defined(_FMTOWNS_UR_VARIANTS)
 267         machine_id = 0x0900;  // UR10/20/40/80
 268         cpu_id = 0x0002;      // i486DX
 269         cpu_clock = 20000 * 1000; // ToDo: Correct frequency.
 270 #elif defined(_FMTOWNS_MA_VARIANTS)
 271         machine_id = 0x0b00; // OK?
 272         cpu_id = 0x0002;      // i486SX
 273         cpu_clock = 33000 * 1000; // 33MHz
 274 #elif defined(_FMTOWNS_ME_VARIANTS)
 275         machine_id = 0x0d00; // OK?
 276         cpu_id = 0x0002;      // i486SX
 277         cpu_clock = 25000 * 1000; // 25MHz
 278 #elif defined(_FMTOWNS_MF_VARIANTS)
 279         machine_id = 0x0f00; // OK?
 280         cpu_id = 0x0002;      // i486SX
 281         cpu_clock = 33000 * 1000; // 33MHz
 282 #elif defined(_FMTOWNS_MX_VARIANTS)
 283         machine_id = 0x0c00; // OK?
 284         cpu_id = 0x0002;      // i486DX (With FPU?)
 285         cpu_clock = 66000 * 1000; // 66MHz
 286 #elif defined(_FMTOWNS_HC_VARIANTS)
 287         // 20210227 K.O
 288         // From FMTowns::MachineID()  of TSUGARU,
 289         // git 83d4ec2309ac9fcbb8c01f26061ff0d49c5321e4.
 290         machine_id = 0x1100; // OK?
 291         cpu_id = 0x0002;      // Pentium (With FPU?)
 292         cpu_clock = 50000 * 1000; // ToDo: Correctness frequency.
 293 #else
 294         // ToDo: Pentium Model (After HB).
 295
 296 #endif
 297
 298         event->set_frames_per_sec(FRAMES_PER_SEC);
 299         event->set_lines_per_frame(LINES_PER_FRAME);
 300
 301         set_machine_type(machine_id, cpu_id);
 302         // set contexts
 303         event->set_context_cpu(cpu, cpu_clock);
 304
 305         adc_in_ch = -1;
 306         line_in_ch = -1;
 307         modem_in_ch = -1;
 308         mic_in_ch = -1;
 309
 310         // Use pseudo mixer instead of event.Due to using ADC.
 311         // Temporally not use mixer.
 312         event->set_context_sound(beep);
 313         event->set_context_sound(opn2);
 314         event->set_context_sound(rf5c68);
 315         event->set_context_sound(cdrom);
 316
 317         fdc->set_context_noise_seek(seek_sound);
 318         fdc->set_context_noise_head_down(head_down_sound);
 319         fdc->set_context_noise_head_up(head_up_sound);
 320         event->set_context_sound(seek_sound);
 321         event->set_context_sound(head_down_sound);
 322         event->set_context_sound(head_up_sound);
 323
 324 #ifdef USE_DEBUGGER
 325         pit0->set_context_debugger(new DEBUGGER(this, emu));
 326         pit1->set_context_debugger(new DEBUGGER(this, emu));
 327 #endif
 328         pit0->set_context_ch0(timer, SIG_TIMER_CH0, 1);
 329         pit0->set_context_ch1(timer, SIG_TIMER_CH1, 1);
 330         pit0->set_context_ch2(beep,  SIG_PCM1BIT_SIGNAL, 1);
 331         pit0->set_constant_clock(0, 307200);
 332         pit0->set_constant_clock(1, 307200);
 333         pit0->set_constant_clock(2, 307200);
 334         pit1->set_constant_clock(0, 1229900);
 335         pit1->set_constant_clock(1, 1229900);
 336         pit1->set_constant_clock(2, 1229900);
 337         pic->set_context_cpu(cpu);
 338         //pic->set_context_cpu(memory);
 339         fdc->set_context_irq(floppy, SIG_FLOPPY_IRQ, 1);
 340         rtc->set_context_data(timer, SIG_TIMER_RTC, 0x0f, 0);
 341         rtc->set_context_busy(timer, SIG_TIMER_RTC_BUSY, 0x80);
 342         scsi_host->set_context_irq(scsi, SIG_SCSI_IRQ, 1);
 343         scsi_host->set_context_drq(scsi, SIG_SCSI_DRQ, 1);
 344         scsi_host->set_context_drq(keyboard, SIG_KEYBOARD_BOOTSEQ_END, 1);
 345
 346 #ifdef USE_DEBUGGER
 347         dma->set_context_debugger(new DEBUGGER(this, emu));
 348         extra_dma->set_context_debugger(new DEBUGGER(this, emu));
 349 #endif
 350         //dma->set_context_cpu(cpu);
 351         dma->set_context_memory(memory);
 352         dma->set_context_ch0(fdc);
 353         dma->set_context_ch1(scsi_host);
 354         //dma->set_context_ch2(printer);
 355         dma->set_context_ch3(cdrom);
 356         dma->set_context_tc1(scsi, SIG_SCSI_EOT, 0xffffffff);
 357         dma->set_context_tc3(cdrom, SIG_TOWNS_CDROM_DMAINT, 0xffffffff);
 358
 359         //dma->set_context_ack1(scsi_host, SIG_SCSI_ACK, 0xffffffff);
 360         dma->set_context_ack3(cdrom, SIG_TOWNS_CDROM_DMAACK, 0xffffffff);
 361         dma->set_context_ube1(scsi_host, SIG_SCSI_16BIT_BUS, 0x02);
 362         dma->set_context_child_dma(extra_dma);
 363
 364         floppy->set_context_fdc(fdc);
 365
 366         sprite->set_context_vram(vram);
 367 //      sprite->set_context_font(fontrom);
 368 //      sprite->set_context_crtc(crtc);
 369 #ifdef USE_DEBUGGER
 370         sprite->set_context_debugger(new DEBUGGER(this, emu));
 371 #endif
 372
 373         planevram->set_context_vram(vram);
 374         planevram->set_context_sprite(sprite);
 375         planevram->set_context_crtc(crtc);
 376
 377         crtc->set_context_sprite(sprite);
 378         crtc->set_context_vram(vram);
 379         crtc->set_context_font(fontrom);
 380
 381 //      e_volumes[0]->set_context_device(0, line_in, 0,
 382 //                                                                       MB87078_TYPE_MASK_LEFT);
 383 //      e_volumes[0]->set_context_device(1, line_in, 0,
 384 //                                                                       MB87078_TYPE_MASK_RIGHT);
 385         e_volumes[1]->set_context_device(0, cdrom, 0,
 386                                                                          MB87078_TYPE_SET_LEFT, SIG_TOWNS_CDROM_MUTE_L,
 387                                                                          0xffffffff,
 388                                                                          0xffffffff,
 389                                                                          false
 390                 );
 391         e_volumes[1]->set_context_device(1, cdrom, 0,
 392                                                                          MB87078_TYPE_SET_RIGHT, SIG_TOWNS_CDROM_MUTE_R,
 393                                                                          0xffffffff,
 394                                                                          0xffffffff,
 395                                                                          false
 396                 );
 397
 398         memory->set_context_cpu(cpu);
 399         memory->set_context_dmac(dma);
 400         memory->set_context_vram(vram);
 401         memory->set_context_planevram(planevram);
 402         memory->set_context_crtc(crtc);
 403         memory->set_context_system_rom(sysrom);
 404         memory->set_context_msdos(msdosrom);
 405         memory->set_context_dictionary(dictionary);
 406         memory->set_context_font_rom(fontrom);
 407         memory->set_context_timer(timer);
 408         memory->set_context_serial_rom(serialrom);
 409         memory->set_context_sprite(sprite);
 410         memory->set_context_pcm(rf5c68);
 411         memory->set_context_iccard(iccard1, 0);
 412         memory->set_context_iccard(iccard2, 1);
 413
 414         adpcm->set_context_opn2(opn2);
 415         adpcm->set_context_rf5c68(rf5c68);
 416         adpcm->set_context_adc(adc);
 417
 418         rf5c68->set_context_interrupt_boundary(adpcm, SIG_ADPCM_WRITE_INTERRUPT, 0xffffffff);
 419 #ifdef USE_DEBUGGER
 420         rf5c68->set_context_debugger(new DEBUGGER(this, emu));
 421 #endif
 422         opn2->set_context_irq(adpcm, SIG_ADPCM_OPX_INTR, 0xffffffff);
 423
 424         adc->set_sample_rate(19200);
 425         adc->set_sound_bank(-1);
 426         adc->set_context_interrupt(adpcm, SIG_ADPCM_ADC_INTR, 0xffffffff);
 427
 428         scsi->set_context_dma(dma);
 429         scsi->set_context_host(scsi_host);
 430         scsi->set_context_pic(pic);
 431         timer->set_context_pcm(beep);
 432         timer->set_context_rtc(rtc);
 433         //timer->set_context_halt_line(cpu, SIG_CPU_HALTREQ, 0xffffffff);
 434         timer->set_context_halt_line(cpu, SIG_CPU_BUSREQ, 0xffffffff);
 435
 436         for(int i = 0; i < 2; i++) {
 437                 // type =
 438                 // 0: Towns PAD 2buttons
 439                 // 1: Towns PAD 6buttons
 440                 // 2: Towns MOUSE
 441                 // 3: Analog Pad (reserved)
 442                 // 4: Libble Rabble stick (reserved)
 443                 joystick->set_context_joystick(i, joypad_2btn[i]);
 444                 joystick->set_context_joystick(i, joypad_6btn[i]);
 445                 joystick->set_context_joystick(i, mouse[i]);
 446         }
 447 #ifdef USE_DEBUGGER
 448         joystick->set_context_debugger(new DEBUGGER(this, emu));
 449 #endif
 450         // ToDo: Selective by config.
 451         for(int i = 0; i < 2; i++) {
 452                 joypad_2btn[i]->set_context_pad_num(i);
 453                 joypad_2btn[i]->set_context_parent_port(i, joystick, 0, 0xff);
 454                 joypad_2btn[i]->set_negative_logic(true);
 455                 joypad_2btn[i]->set_enable(true);
 456         }
 457         for(int i = 0; i < 2; i++) {
 458                 joypad_6btn[i]->set_context_pad_num(i);
 459                 joypad_6btn[i]->set_context_parent_port(i, joystick, 0, 0xff);
 460                 joypad_6btn[i]->set_negative_logic(true);
 461                 joypad_6btn[i]->set_enable(false);
 462         }
 463         for(int i = 0; i < 2; i++) {
 464                 mouse[i]->set_context_pad_num(i);
 465                 mouse[i]->set_context_parent_port(i, joystick, 0, 0xff);
 466                 mouse[i]->set_negative_logic(true);
 467                 mouse[i]->set_enable(false);
 468         }
 469         joystick->set_using_pad(0, -1);
 470         joystick->set_using_pad(1, -1);
 471
 472         // cpu bus
 473         cpu->set_context_mem(memory);
 474         cpu->set_context_io(io);
 475         cpu->set_context_intr(pic);
 476         cpu->set_context_dma(dma);
 477         cpu->set_context_bios(nullptr);
 478         cpu->set_context_extreset(memory, SIG_FMTOWNS_NOTIFY_RESET, 0xffffffff);
 479 #ifdef USE_DEBUGGER
 480         cpu->set_context_debugger(new DEBUGGER(this, emu));
 481 #endif
 482         // Interrupts
 483         // IRQ0  : TIMER
 484         // IRQ1  : KEYBOARD
 485         // IRQ2  : USART (ToDo)
 486         // IRQ3  : EXTRA USART (ToDo)
 487         // IRQ4  : EXTRA I/O (Maybe not implement)
 488         // IRQ5  : EXTRA I/O (Maybe not implement)
 489         // IRQ6  : FDC
 490         // IRQ7  : Deisy chain (to IRQ8 - 15)
 491         timer->set_context_intr_line(pic, SIG_I8259_CHIP0 | SIG_I8259_IR0, 0xffffffff);
 492         keyboard->set_context_intr_line(pic, SIG_I8259_CHIP0 | SIG_I8259_IR1, 0xffffffff);
 493         floppy->set_context_intr_line(pic, SIG_I8259_CHIP0 | SIG_I8259_IR6, 0xffffffff);
 494
 495         // IRQ8  : SCSI (-> scsi.cpp)
 496         // IRQ9  : CDC/CDROM
 497         // IRQ10 : EXTRA I/O (Maybe not implement)
 498         // IRQ11 : VSYNC
 499         // IRQ12 : PRINTER (ToDo)
 500         // IRQ13 : ADPCM AND OPN2 (Route to adpcm.cpp)
 501         // IRQ14 : EXTRA I/O (Maybe not implement)
 502         // IRQ15 : RESERVED.
 503         cdrom->set_context_mpuint_line(pic, SIG_I8259_CHIP1 | SIG_I8259_IR1, 0xffffffff);
 504         crtc->set_context_vsync(pic, SIG_I8259_CHIP1 | SIG_I8259_IR3, 0xffffffff);
 505         adpcm->set_context_intr_line(pic, SIG_I8259_CHIP1 | SIG_I8259_IR5, 0xffffffff);
 506
 507         // DMA0  : FDC/DRQ
 508         // DMA1  : SCSI (-> scsi.cpp)
 509         // DMA2  : PRINTER (ToDo)
 510         // DMA3  : CDC/CDROM
 511         // EXTRA DMA0 : EXTRA SLOT (Maybe not implement)
 512         // EXTRA DMA1 : Reserved
 513         // EXTRA DMA2 : Reserved
 514         // EXTRA DMA3 : Reserved
 515         fdc->set_context_drq(dma, SIG_UPD71071_CH0, 1);
 516         fdc->set_context_drq(keyboard, SIG_KEYBOARD_BOOTSEQ_END, 1);
 517         cdrom->set_context_drq_line(dma, SIG_UPD71071_CH3, 0xff);
 518         cdrom->set_context_drq_line(keyboard, SIG_KEYBOARD_BOOTSEQ_END, 1);
 519
 520         // NMI0 : KEYBOARD (RAS)
 521         // NMI1 : Extra SLOT (Maybe not implement)
 522         keyboard->set_context_nmi_line(memory, SIG_CPU_NMI, 0xffffffff);
 523
 524         cdrom->set_context_dmac(dma);
 525         // For Debugging, will remove 20200822 K.O
 526         cdrom->set_context_cpu(cpu);
 527
 528         // i/o bus
 529         io->set_iowait_range_rw(0x0000, 0xffff, 6); // ToDo: May variable wait.
 530
 531         io->set_iomap_alias_rw (0x0000, pic, I8259_ADDR_CHIP0 | 0);
 532         io->set_iomap_alias_rw (0x0002, pic, I8259_ADDR_CHIP0 | 1);
 533         io->set_iomap_alias_rw (0x0010, pic, I8259_ADDR_CHIP1 | 0);
 534         io->set_iomap_alias_rw (0x0012, pic, I8259_ADDR_CHIP1 | 1);
 535
 536         io->set_iomap_range_rw (0x0020, 0x0025, memory);
 537         io->set_iomap_range_rw (0x0026, 0x0027, timer);  // Freerun counter
 538         io->set_iomap_single_rw(0x0028, memory);
 539
 540         io->set_iomap_range_r  (0x0030, 0x0031, memory);        // cpu id / machine id
 541         io->set_iomap_single_rw(0x0032, memory);        // serial rom (routed from memory)
 542         io->set_iomap_single_r (0x0034, scsi);  // ENABLE/ UNABLE to WORD DMA for SCSI
 543
 544         io->set_iomap_alias_rw(0x0040, pit0, 0);
 545         io->set_iomap_alias_rw(0x0042, pit0, 1);
 546         io->set_iomap_alias_rw(0x0044, pit0, 2);
 547         io->set_iomap_alias_rw(0x0046, pit0, 3);
 548         io->set_iomap_alias_rw(0x0050, pit1, 0);
 549         io->set_iomap_alias_rw(0x0052, pit1, 1);
 550         io->set_iomap_alias_rw(0x0054, pit1, 2);
 551         io->set_iomap_alias_rw(0x0056, pit1, 3);
 552
 553         io->set_iomap_single_rw(0x0060, timer); // Beep and interrupts register
 554         io->set_iomap_single_rw(0x0068, timer); // Interval timer register2 (after Towns 10F).
 555         io->set_iomap_single_rw(0x006a, timer); // Interval timer register2 (after Towns 10F).
 556         io->set_iomap_single_rw(0x006b, timer); // Interval timer register2 (after Towns 10F).
 557         io->set_iomap_single_rw(0x006c, timer); // 1uS wait register (after Towns 10F).
 558
 559         io->set_iomap_single_rw(0x0070, timer); // RTC DATA
 560         io->set_iomap_single_w (0x0080, timer); // RTC COMMAND
 561
 562         io->set_iomap_range_rw (0x00a0, 0x00af, dma);
 563         io->set_iomap_range_rw (0x00b0, 0x00bf, extra_dma);
 564
 565         io->set_iomap_single_rw(0x00c0, memory);   // CACHE CONTROLLER
 566         io->set_iomap_single_rw(0x00c2, memory);   // CACHE CONTROLLER
 567
 568         io->set_iomap_alias_rw (0x0200, fdc, 0);  // STATUS/COMMAND
 569         io->set_iomap_alias_rw (0x0202, fdc, 1);  // TRACK
 570         io->set_iomap_alias_rw (0x0204, fdc, 2);  // SECTOR
 571         io->set_iomap_alias_rw (0x0206, fdc, 3);  // DATA
 572         io->set_iomap_single_rw(0x0208, floppy);  // DRIVE STATUS / DRIVE CONTROL
 573         io->set_iomap_single_rw(0x020c, floppy);  // DRIVE SELECT
 574         io->set_iomap_single_r (0x020d, floppy);  // FDDVEXT (after HG/HR).
 575         io->set_iomap_single_rw(0x020e, floppy);  // Towns drive SW
 576
 577         io->set_iomap_range_rw (0x0400, 0x0404, memory); // System Status
 578 //      io->set_iomap_range_rw (0x0406, 0x043f, memory); // Reserved
 579
 580         io->set_iomap_range_rw(0x0440, 0x0443, crtc); // CRTC
 581         io->set_iomap_range_rw(0x0448, 0x044f, crtc); // VIDEO OUT (CRTC)
 582
 583         io->set_iomap_range_rw(0x0450, 0x0452, sprite); // SPRITE
 584
 585         io->set_iomap_single_rw(0x0458, vram);         // VRAM ACCESS CONTROLLER (ADDRESS)
 586         io->set_iomap_range_rw (0x045a, 0x045b, vram); // VRAM ACCESS CONTROLLER (DATA)
 587
 588         io->set_iomap_single_rw(0x0480, memory); //  MEMORY REGISTER
 589         io->set_iomap_single_rw(0x0484, dictionary); // Dictionary
 590
 591         io->set_iomap_alias_r(0x48a, iccard1, 0); //
 592         //io->set_iomap_alias_rw(0x490, memory_card); // After Towns2
 593         //io->set_iomap_alias_rw(0x491, memory_card); // After Towns2
 594
 595         io->set_iomap_range_rw(0x04c0, 0x04c6, cdrom); // CDROM
 596         io->set_iomap_range_r (0x04cc, 0x04cd, cdrom); // CDROM
 597         // PAD, Sound
 598
 599         io->set_iomap_single_r(0x04d0, joystick); // Pad1
 600         io->set_iomap_single_r(0x04d2, joystick); // Pad 2
 601         io->set_iomap_single_w(0x04d6, joystick); // Pad out
 602
 603         io->set_iomap_single_rw(0x04d5, adpcm); // mute
 604         // OPN2(YM2612)
 605         io->set_iomap_alias_rw(0x04d8, opn2, 0); // STATUS(R)/Addrreg 0(W)
 606         io->set_iomap_alias_w (0x04da, opn2, 1);  // Datareg 0(W)
 607         io->set_iomap_alias_w (0x04dc, opn2, 2);  // Addrreg 1(W)
 608         io->set_iomap_alias_w (0x04de, opn2, 3);  // Datareg 1(W)
 609         // Electrical volume
 610         io->set_iomap_alias_rw(0x04e0, e_volumes[0], 0);
 611         io->set_iomap_alias_rw(0x04e1, e_volumes[0], 1);
 612         io->set_iomap_alias_rw(0x04e2, e_volumes[1], 0);
 613         io->set_iomap_alias_rw(0x04e3, e_volumes[1], 1);
 614
 615         // ADPCM
 616         io->set_iomap_range_rw(0x04e7, 0x04ec, adpcm); // A/D SAMPLING DATA REG
 617         io->set_iomap_range_rw(0x04f0, 0x04f8, rf5c68); // A/D SAMPLING DATA REG
 618
 619         io->set_iomap_single_rw(0x05c0, memory); // NMI MASK
 620         io->set_iomap_single_r (0x05c2, memory);  // NMI STATUS
 621         io->set_iomap_single_r (0x05c8, sprite); // TVRAM EMULATION
 622         io->set_iomap_single_w (0x05ca, crtc); // VSYNC INTERRUPT
 623
 624         io->set_iomap_single_rw(0x05e0, memory); // Hidden MEMORY WAIT REGISTER from AB.COM (Towns 1/2)
 625         io->set_iomap_single_rw(0x05e2, memory); // Hidden MEMORY WAIT REGISTER from AB.COM (After Towns 1H/1F/2H/2F )
 626         io->set_iomap_single_rw(0x05e6, memory); // Hidden VRAM WAIT REGISTER from TSUGARU (Maybe after Towns 10H/10F/20H/20F )
 627         io->set_iomap_single_r (0x05e8, memory); // RAM capacity register.(later Towns1H/2H/1F/2F).
 628         io->set_iomap_single_rw(0x05ec, memory); // RAM Wait register , ofcially after Towns2, but exists after Towns1H.
 629         io->set_iomap_single_r (0x05ed, memory); // Maximum clock register (After HR/HG).
 630         io->set_iomap_single_rw(0x05ee, vram);   // VRAM CACHE CONTROLLER
 631
 632         io->set_iomap_single_rw(0x0600, keyboard);
 633         io->set_iomap_single_rw(0x0602, keyboard);
 634         io->set_iomap_single_rw(0x0604, keyboard);
 635
 636         //io->set_iomap_single_rw(0x0800, printer);
 637         //io->set_iomap_single_rw(0x0802, printer);
 638         //io->set_iomap_single_rw(0x0804, printer);
 639
 640         io->set_iomap_alias_rw (0x0a00, sio, 0);
 641         io->set_iomap_alias_rw (0x0a02, sio, 1);
 642 //      io->set_iomap_single_r (0x0a04, serial);
 643 //      io->set_iomap_single_r (0x0a06, serial);
 644 //      io->set_iomap_single_w (0x0a08, serial);
 645 //      io->set_iomap_single_rw(0x0a0a, modem);
 646
 647         io->set_iomap_single_rw(0x0c30, scsi);
 648         io->set_iomap_single_rw(0x0c32, scsi);
 649         io->set_iomap_single_r (0x0c34, scsi);
 650
 651         io->set_iomap_range_rw (0x3000, 0x3fff, dictionary); // CMOS
 652
 653         io->set_iomap_range_rw (0xfd90, 0xfda0, crtc);  // Palette and CRTC
 654         io->set_iomap_single_r (0xfda2, crtc);  // CRTC
 655         io->set_iomap_single_rw(0xfda4, memory);        // memory
 656
 657         io->set_iomap_range_rw (0xff80, 0xff83, planevram);     // MMIO
 658         io->set_iomap_single_r (0xff84, planevram);     // MMIO
 659         io->set_iomap_single_rw(0xff86, planevram);     // MMIO
 660         io->set_iomap_single_rw(0xff88, memory);        // MMIO
 661         //io->set_iomap_range_rw (0xff94, 0xff97, fontrom);     // MMIO
 662         //io->set_iomap_range_rw (0xff98, 0xff99, memory);      // MMIO
 663         //io->set_iomap_range_rw (0xff9c, 0xff9f, memory);      // MMIO
 664
 665         io->set_iomap_range_rw (0xff94, 0xff99, memory);        // MMIO
 666         io->set_iomap_range_r  (0xff9c, 0xff9d, memory);        // MMIO
 667         io->set_iomap_single_rw(0xff9e, memory);        // MMIO
 668         io->set_iomap_single_rw(0xffa0, planevram);     // MMIO
 669
 670
 671
 672         // Vram allocation may be before initialize().
 673         // initialize all devices
 674 #if defined(__GIT_REPO_VERSION)
 675         set_git_repo_version(__GIT_REPO_VERSION);
 676 #endif
 677         // ToDo : Use config framework
 678         int exram_size = config.current_ram_size;
 679         if(exram_size < 1) {
 680                 if(machine_id < 0x0200) { // Model1 - 2H
 681                         exram_size = 6;
 682                 } else if(machine_id == 0x0500) { // CX
 683                         exram_size = 15;
 684                 } else if(machine_id < 0x0700) {  // 10F,20H
 685                         exram_size = 8;
 686                 } else if(machine_id == 0x0800) { // HG
 687                         exram_size = 15;
 688                 } else {
 689                         exram_size = 31;
 690                 }
 691         }
 692         if(exram_size < MIN_RAM_SIZE) {
 693                 exram_size = MIN_RAM_SIZE;
 694         }
 695
 696         memory->set_extra_ram_size(exram_size);
 697
 698 #if defined(WITH_I386SX)
 699         cpu->device_model = INTEL_80386;
 700 #elif defined(WITH_I486SX)
 701         cpu->device_model = INTEL_I486SX;
 702 #elif defined(WITH_I486DX)
 703         cpu->device_model = INTEL_I486DX;
 704 #elif defined(WITH_PENTIUM)
 705         cpu->device_model = INTEL_PENTIUM;
 706 #else
 707         // I386
 708         cpu->device_model = INTEL_80386;
 709 #endif
 710
 711         initialize_devices();
 712 //      cpu->set_address_mask(0xffffffff);
 713 }
 714
 715 VM::~VM()
 716 {
 717         // delete all devices
 718         release_devices();
 719 }
 720
 721 void VM::set_machine_type(uint16_t machine_id, uint16_t cpu_id)
 722 {
 723         if(memory != nullptr) {
 724                 memory->set_cpu_id(cpu_id);
 725                 memory->set_machine_id(machine_id);
 726         }
 727         if(crtc != nullptr) {
 728                 crtc->set_cpu_id(cpu_id);
 729                 crtc->set_machine_id(machine_id);
 730         }
 731         if(timer != nullptr) {
 732                 timer->set_cpu_id(cpu_id);
 733                 timer->set_machine_id(machine_id);
 734         }
 735         if(cdrom != nullptr) {
 736                 cdrom->set_cpu_id(cpu_id);
 737                 cdrom->set_machine_id(machine_id);
 738         }
 739         if(scsi != nullptr) {
 740                 scsi->set_cpu_id(cpu_id);
 741                 scsi->set_machine_id(machine_id);
 742         }
 743         if(serialrom != nullptr) {
 744                 serialrom->set_cpu_id(cpu_id);
 745                 serialrom->set_machine_id(machine_id);
 746         }
 747         if(floppy != nullptr) {
 748                 floppy->set_cpu_id(cpu_id);
 749                 floppy->set_machine_id(machine_id);
 750         }
 751 #if defined(HAS_20PIX_FONTS)
 752         if(fontrom_20pix != nullptr) {
 753                 fontrom_20pix->set_cpu_id(cpu_id);
 754                 fontrom_20pix->set_machine_id(machine_id);
 755         }
 756 #endif
 757         if(vram != nullptr) {
 758                 vram->set_cpu_id(cpu_id);
 759                 vram->set_machine_id(machine_id);
 760         }
 761
 762 }
 763
 764
 765 // ----------------------------------------------------------------------------
 766 // drive virtual machine
 767 // ----------------------------------------------------------------------------
 768
 769 void VM::reset()
 770 {
 771         // reset all devices
 772         boot_seq = false;
 773         VM_TEMPLATE::reset();
 774 //      cpu->set_address_mask(0xffffffff);
 775 }
 776
 777 void VM::special_reset(int num)
 778 {
 779         boot_seq = true;
 780
 781         // reset all devices
 782         VM_TEMPLATE::reset();
 783         //      cpu->set_address_mask(0xffffffff);
 784         __LIKELY_IF(keyboard != nullptr) {
 785                 keyboard->special_reset(num);
 786         }
 787 }
 788
 789 void VM::run()
 790 {
 791         __LIKELY_IF(event != nullptr) {
 792                 event->drive();
 793         }
 794 }
 795 void VM::process_boot_sequence(uint32_t val)
 796 {
 797         if(boot_seq) {
 798                 if(val != 0) {
 799                         if(keyboard != nullptr) {
 800                                 keyboard->write_signal(SIG_KEYBOARD_BOOTSEQ_END, 0xffffffff, 0xffffffff);
 801                         }
 802                         boot_seq = false;
 803                 }
 804         }
 805 }
 806
 807 // ----------------------------------------------------------------------------
 808 // debugger
 809 // ----------------------------------------------------------------------------
 810
 811 #ifdef USE_DEBUGGER
 812 DEVICE *VM::get_cpu(int index)
 813 {
 814         if(index == 0) {
 815                 return cpu;
 816         }
 817         return nullptr;
 818 }
 819 #endif
 820
 821 // ----------------------------------------------------------------------------
 822 // draw screen
 823 // ----------------------------------------------------------------------------
 824
 825 void VM::draw_screen()
 826 {
 827         __LIKELY_IF(crtc != nullptr) {
 828                 crtc->draw_screen();
 829         }
 830 }
 831
 832
 833 // ----------------------------------------------------------------------------
 834 // soud manager
 835 // ----------------------------------------------------------------------------
 836
 837 void VM::initialize_sound(int rate, int samples)
 838 {
 839 //      emu->lock_vm();
 840         // init sound manager
 841         event->initialize_sound(rate, samples);
 842
 843         // init sound gen
 844         beep->initialize_sound(rate, 8000);
 845
 846         // init OPN2
 847         #if 0
 848         // MASTER CLOCK MAYBE 600KHz * 12 = 7200KHz .
 849         // From FM-Towns Technical Databook (Rev.2), Page 201
 850         // opn2->initialize_sound(rate, (int)(600.0e3 * 12.0) , samples, 0.0, 0.0);
 851         #else
 852         // But...20230330 K.O:
 853         // From src/ym2612/ym2612.h of Tsugaru below quote.
 854         // Thanks to YS-11 San.
 855         //
 856         // What exactly is the master clock given to YM2612 of TOWNS?
 857         // FM Towns Technical Databook tells internal clock is 600KHz on page 201.
 858         // However, after calibrating the tone to match real Towns, it must be 690KHz.  Is it correct?
 859         // Master clock must be the internal clock times pre scaler.  But, we don't know the default pre scalar value.
 860         // Let's say it is 3.  Then, 690KHz times 3=2070KHz.  Sounds reasonable.
 861         // But, now FM77AV's YM2203C uses master clock frequency of 1228.8KHz.
 862         // And after calibration we know the ratio between the two.
 863         // From there, 1228.8*1698/1038=1999.46.  2MHz.  Makes more sense.
 864         opn2->initialize_sound(rate, (int)(((1228.8e3 * 1698.0) / 1038.0) * 4.0) , samples, 0.0, 0.0);
 865         #endif
 866         // init PCM
 867         rf5c68->initialize_sound(rate, samples);
 868
 869         // add_sound_in_source() must add after per initialize_sound().
 870         adc_in_ch = event->add_sound_in_source(rate, samples, 2);
 871         adc->set_sample_rate(19200);
 872         adc->set_sound_bank(adc_in_ch);
 873 #if 0
 874         mixer->set_context_out_line(adc_in_ch);
 875         mixer->set_context_sample_out(adc_in_ch, rate, samples); // Must be 2ch.
 876         // ToDo: Check recording sample rate & channels.
 877         mic_in_ch = event->add_sound_in_source(rate, samples, 2);
 878         mixer->set_context_mic_in(mic_in_ch, rate, samples);
 879
 880         line_in_ch = event->add_sound_in_source(rate, samples, 2);
 881         mixer->set_context_line_in(line_in_ch, rate, samples);
 882 #endif
 883 //      emu->unlock_vm();
 884 }
 885
 886 uint16_t* VM::create_sound(int* extra_frames)
 887 {
 888         __LIKELY_IF(event != nullptr) {
 889                 return event->create_sound(extra_frames);
 890         }
 891         return VM_TEMPLATE::create_sound(extra_frames);
 892 }
 893
 894 int VM::get_sound_buffer_ptr()
 895 {
 896         __LIKELY_IF(event != nullptr) {
 897                 return event->get_sound_buffer_ptr();
 898         }
 899         return VM_TEMPLATE::get_sound_buffer_ptr();
 900 }
 901
 902 void VM::clear_sound_in()
 903 {
 904         __UNLIKELY_IF(event == nullptr) return;
 905
 906         event->clear_sound_in_source(adc_in_ch);
 907         event->clear_sound_in_source(mic_in_ch);
 908         event->clear_sound_in_source(line_in_ch);
 909         return;
 910 }
 911
 912 int VM::get_sound_in_data(int ch, int32_t* dst, int expect_samples, int expect_rate, int expect_channels)
 913 {
 914         if(dst == nullptr) return 0;
 915         if(expect_samples <= 0) return 0;
 916         int n_ch = -1;
 917         switch(ch) {
 918         case 0x00:
 919                 n_ch = line_in_ch;
 920                 break;
 921         case 0x01:
 922                 n_ch = mic_in_ch;
 923                 break;
 924         case 0x100:
 925                 n_ch = adc_in_ch;
 926                 break;
 927         }
 928         if(n_ch < 0) return 0;
 929         int samples = 0;
 930         if(event != nullptr) {
 931                 samples = event->get_sound_in_data(n_ch, dst, expect_samples, expect_rate, expect_channels);
 932         }
 933         return samples;
 934 }
 935
 936 // Write to event's buffer
 937 int VM::sound_in(int ch, int32_t* src, int samples)
 938 {
 939         if(ch < 0) return 0;
 940         if(ch >= 2) return 0;
 941         int n_ch = -1;
 942         switch(ch) {
 943         case 0x100:  // ADC in from MIXER, not connected.
 944                 break;
 945         case 0x00: // LINE
 946                 n_ch = line_in_ch;
 947                 break;
 948         case 0x01: // MIC
 949                 n_ch = mic_in_ch;
 950                 break;
 951         }
 952         if(n_ch < 0) return 0;
 953
 954         int ss = 0;
 955         if(event != nullptr) {
 956                 emu->lock_vm();
 957                 ss =  event->write_sound_in_buffer(n_ch, src, samples);
 958                 emu->unlock_vm();
 959         }
 960         return ss;
 961 }
 962
 963 #if defined(USE_HARD_DISK)
 964 void VM::open_hard_disk(int drv, const _TCHAR* file_path)
 965 {
 966         if((drv < USE_HARD_DISK) && (drv < 8) && (drv >= 0)) {
 967                 if(scsi_hdd[drv] != nullptr) {
 968                         scsi_hdd[drv]->open(0, file_path, 512);
 969                 }
 970         }
 971 }
 972
 973 void VM::close_hard_disk(int drv)
 974 {
 975         if((drv < USE_HARD_DISK) && (drv < 8) && (drv >= 0)) {
 976                 if(scsi_hdd[drv] != nullptr) {
 977                         scsi_hdd[drv]->close(0);
 978                 }
 979         }
 980 }
 981
 982 bool VM::is_hard_disk_inserted(int drv)
 983 {
 984         if((drv < USE_HARD_DISK) && (drv < 8) && (drv >= 0)) {
 985                 if(scsi_hdd[drv] != nullptr) {
 986                         return scsi_hdd[drv]->mounted(0);
 987                 }
 988         }
 989         return false;
 990 }
 991
 992 uint32_t VM::is_hard_disk_accessed()
 993 {
 994         uint32_t status = 0;
 995
 996         for(int drv = 0; drv < USE_HARD_DISK; drv++) {
 997                 if(scsi_hdd[drv] != nullptr) {
 998                         if(scsi_hdd[drv]->accessed(0)) {
 999                                 status |= 1 << drv;
1000                         }
1001                 }
1002         }
1003         process_boot_sequence(status);
1004         return status;
1005 }
1006 #endif // USE_HARD_DISK
1007
1008 void VM::open_compact_disc(int drv, const _TCHAR* file_path)
1009 {
1010         if(cdrom != nullptr) {
1011                 cdrom->open(file_path);
1012         }
1013 }
1014
1015 void VM::close_compact_disc(int drv)
1016 {
1017         if(cdrom != nullptr) {
1018                 cdrom->close();
1019         }
1020 }
1021
1022 bool VM::is_compact_disc_inserted(int drv)
1023 {
1024         if(cdrom == nullptr) return false;
1025         return cdrom->mounted();
1026 }
1027
1028 uint32_t VM::is_compact_disc_accessed()
1029 {
1030         uint32_t status = cdrom->accessed();
1031         process_boot_sequence(status);
1032         return status;
1033 }
1034
1035 #ifdef USE_SOUND_VOLUME
1036 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
1037 {
1038 #ifndef HAS_LINEIN_SOUND
1039 //      if(ch >= 7) ch++;
1040 #endif
1041 #ifndef HAS_MIC_SOUND
1042 //      if(ch >= 8) ch++;
1043 #endif
1044 #ifndef HAS_MODEM_SOUND
1045 //      if(ch >= 9) ch++;
1046 #endif
1047 #ifndef HAS_2ND_ADPCM
1048 //      if(ch >= 10) ch++;
1049 #endif
1050         if(ch == 0) { // BEEP
1051                 if(beep != nullptr) {
1052                         beep->set_volume(0, decibel_l, decibel_r);
1053                 }
1054         }
1055         else if(ch == 1) { // CD-ROM
1056                 if(e_volumes[1] != nullptr) {
1057                         e_volumes[1]->set_volumes(0, decibel_l, 1, decibel_r);
1058                 } else if(cdrom != nullptr) {
1059                         cdrom->set_volume(0, decibel_l, decibel_r);
1060                 }
1061         }
1062         else if(ch == 2) { // OPN2
1063                 if(opn2 != nullptr) {
1064                         opn2->set_volume(0, decibel_l, decibel_r);
1065                 }
1066         }
1067         else if(ch == 3) { // ADPCM
1068                 if(rf5c68 != nullptr) {
1069                         rf5c68->set_volume(0, decibel_l, decibel_r);
1070                 }
1071         }
1072         else if(ch == 4) { // SEEK, HEAD UP / DOWN
1073                 if(seek_sound != nullptr) {
1074                         seek_sound->set_volume(0, decibel_l, decibel_r);
1075                 }
1076                 if(head_up_sound != nullptr) {
1077                         head_up_sound->set_volume(0, decibel_l, decibel_r);
1078                 }
1079                 if(head_down_sound != nullptr) {
1080                         head_down_sound->set_volume(0, decibel_l, decibel_r);
1081                 }
1082         }
1083 }
1084 #endif
1085
1086 // ----------------------------------------------------------------------------
1087 // notify key
1088 // ----------------------------------------------------------------------------
1089
1090 void VM::key_down(int code, bool repeat)
1091 {
1092         __LIKELY_IF(keyboard != nullptr) {
1093                 keyboard->key_down(code);
1094         }
1095 }
1096
1097 void VM::key_up(int code)
1098 {
1099         __LIKELY_IF(keyboard != nullptr) {
1100                 keyboard->key_up(code);
1101         }
1102 }
1103
1104 // ----------------------------------------------------------------------------
1105 // user interface
1106 // ----------------------------------------------------------------------------
1107 void VM::open_cart(int drv, const _TCHAR* file_path)
1108 {
1109         switch(drv) {
1110         case 0:
1111                 if(iccard1 != nullptr) {
1112                         iccard1->open_cart(file_path);
1113                 }
1114                 break;
1115         case 1:
1116                 if(iccard2 != nullptr) {
1117                         iccard2->open_cart(file_path);
1118                 }
1119                 break;
1120         }
1121 }
1122
1123 void VM::close_cart(int drv)
1124 {
1125         switch(drv) {
1126         case 0:
1127                 if(iccard1 != nullptr) {
1128                         iccard1->close_cart();
1129                 }
1130                 break;
1131         case 1:
1132                 if(iccard2 != nullptr) {
1133                         iccard2->close_cart();
1134                 }
1135                 break;
1136         }
1137 }
1138
1139 bool VM::is_cart_inserted(int drv)
1140 {
1141         switch(drv) {
1142         case 0:
1143                 if(iccard1 != nullptr) {
1144                         return iccard1->is_cart_inserted();
1145                 }
1146                 break;
1147         case 1:
1148                 if(iccard2 != nullptr) {
1149                         return iccard2->is_cart_inserted();
1150                 }
1151                 break;
1152         }
1153         return false;
1154 }
1155
1156 void VM::open_floppy_disk(int drv, const _TCHAR* file_path, int bank)
1157 {
1158
1159         if(fdc != nullptr) {
1160                 fdc->open_disk(drv, file_path, bank);
1161                 floppy->change_disk(drv);
1162         }
1163 }
1164
1165 void VM::close_floppy_disk(int drv)
1166 {
1167         if(fdc != nullptr) {
1168                 fdc->close_disk(drv);
1169         //      floppy->change_disk(drv);
1170         }
1171 }
1172 uint32_t VM::is_floppy_disk_accessed()
1173 {
1174         uint32_t val = fdc->read_signal(0);
1175         process_boot_sequence(val);
1176         return val;
1177 }
1178
1179 bool VM::is_floppy_disk_inserted(int drv)
1180 {
1181         if(fdc != nullptr) {
1182                 return fdc->is_disk_inserted(drv);
1183         }
1184         return VM_TEMPLATE::is_floppy_disk_inserted(drv);
1185 }
1186
1187 void VM::is_floppy_disk_protected(int drv, bool value)
1188 {
1189         __LIKELY_IF(fdc != nullptr) {
1190                 fdc->is_disk_protected(drv, value);
1191         }
1192 }
1193
1194 bool VM::is_floppy_disk_protected(int drv)
1195 {
1196         __LIKELY_IF(fdc != nullptr) {
1197                 return fdc->is_disk_protected(drv);
1198         }
1199         return VM_TEMPLATE::is_floppy_disk_protected(drv);
1200 }
1201
1202 bool VM::is_frame_skippable()
1203 {
1204         __LIKELY_IF(event != nullptr) {
1205                 return event->is_frame_skippable();
1206         }
1207         return VM_TEMPLATE::is_frame_skippable();
1208 }
1209
1210
1211 double VM::get_current_usec()
1212 {
1213         __LIKELY_IF(event != nullptr) {
1214                 return event->get_current_usec();
1215         }
1216         return VM_TEMPLATE::get_current_usec();
1217 }
1218
1219 uint64_t VM::get_current_clock_uint64()
1220 {
1221         __LIKELY_IF(event != nullptr) {
1222                 return event->get_current_clock_uint64();
1223         }
1224         return VM_TEMPLATE::get_current_clock_uint64();
1225 }
1226
1227 #define STATE_VERSION   4
1228
1229 bool VM::process_state(FILEIO* state_fio, bool loading)
1230 {
1231         if(!(VM_TEMPLATE::process_state_core(state_fio, loading, STATE_VERSION))) {
1232                 return false;
1233         }
1234
1235         // Machine specified.
1236         state_fio->StateValue(boot_seq);
1237
1238         if(loading) {
1239                 update_config();
1240         }
1241         return true;
1242 }