source/src/vm/jr800/jr800.cpp

   1 /*
   2         National JR-800 Emulator 'eJR-800'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2017.03.13-
   6
   7         [ virtual machine ]
   8 */
   9
  10 #include "jr800.h"
  11 #include "../../emu.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14
  15 #include "../datarec.h"
  16 #include "../hd44102.h"
  17 //#include "../mc6800.h"
  18 #include "../hd6301.h"
  19 #include "../memory.h"
  20 #include "../noise.h"
  21 #include "../pcm1bit.h"
  22
  23 #ifdef USE_DEBUGGER
  24 #include "../debugger.h"
  25 #endif
  26
  27 #include "./io.h"
  28 using JR800::IO;
  29
  30 // ----------------------------------------------------------------------------
  31 // initialize
  32 // ----------------------------------------------------------------------------
  33
  34 VM::VM(EMU* parent_emu) : VM_TEMPLATE(parent_emu)
  35 {
  36         // create devices
  37         first_device = last_device = NULL;
  38         dummy = new DEVICE(this, emu);  // must be 1st device
  39         event = new EVENT(this, emu);   // must be 2nd device
  40
  41         drec = new DATAREC(this, emu);
  42         drec->set_context_noise_play(new NOISE(this, emu));
  43         drec->set_context_noise_stop(new NOISE(this, emu));
  44         drec->set_context_noise_fast(new NOISE(this, emu));
  45         for(int i = 0; i < 8; i++) {
  46                 lcd[i] = new HD44102(this, emu);
  47         }
  48 //      cpu = new MC6800(this, emu);
  49         cpu = new HD6301(this, emu);
  50         memory = new MEMORY(this, emu);
  51         pcm = new PCM1BIT(this, emu);
  52
  53         io = new IO(this, emu);
  54
  55         // set contexts
  56         event->set_context_cpu(cpu);
  57         event->set_context_sound(drec);
  58         event->set_context_sound(pcm);
  59         event->set_context_sound(drec->get_context_noise_play());
  60         event->set_context_sound(drec->get_context_noise_stop());
  61         event->set_context_sound(drec->get_context_noise_fast());
  62
  63 //      cpu->set_context_port1(drec, SIG_DATAREC_MIC, 0x01, 0);
  64         cpu->set_context_port1(pcm, SIG_PCM1BIT_ON, 0x08, 0);
  65         cpu->set_context_port1(pcm, SIG_PCM1BIT_SIGNAL, 0x10, 0);
  66
  67         for(int i = 0; i < 8; i++) {
  68                 io->set_context_lcd(i, lcd[i]);
  69         }
  70
  71         // cpu bus
  72         cpu->set_context_mem(memory);
  73 #ifdef USE_DEBUGGER
  74         cpu->set_context_debugger(new DEBUGGER(this, emu));
  75 #endif
  76
  77         // memory bus
  78         memset(ram, 0x00, sizeof(ram));
  79         memset(rom, 0xff, sizeof(rom));
  80
  81         memory->read_bios(_T("BASIC.ROM"), rom, sizeof(rom));
  82
  83         memory->set_memory_rw(0x2000, 0x7fff, ram);
  84         memory->set_memory_r(0x8000, 0xffff, rom);
  85         memory->set_memory_mapped_io_rw(0x0a00, 0x0bff, io);
  86         memory->set_memory_mapped_io_rw(0x0d00, 0x0fff, io);
  87
  88         // initialize all devices
  89 #if defined(__GIT_REPO_VERSION)
  90         strncpy(_git_revision, __GIT_REPO_VERSION, sizeof(_git_revision) - 1);
  91 #endif
  92         for(DEVICE* device = first_device; device; device = device->next_device) {
  93                 device->initialize();
  94         }
  95 }
  96
  97 VM::~VM()
  98 {
  99         // delete all devices
 100         for(DEVICE* device = first_device; device;) {
 101                 DEVICE *next_device = device->next_device;
 102                 device->release();
 103                 delete device;
 104                 device = next_device;
 105         }
 106 }
 107
 108 DEVICE* VM::get_device(int id)
 109 {
 110         for(DEVICE* device = first_device; device; device = device->next_device) {
 111                 if(device->this_device_id == id) {
 112                         return device;
 113                 }
 114         }
 115         return NULL;
 116 }
 117
 118 // ----------------------------------------------------------------------------
 119 // drive virtual machine
 120 // ----------------------------------------------------------------------------
 121
 122 void VM::reset()
 123 {
 124         // reset all devices
 125         for(DEVICE* device = first_device; device; device = device->next_device) {
 126                 device->reset();
 127         }
 128         cpu->write_signal(SIG_MC6801_PORT_1, 0x00, 0xff);
 129         cpu->write_signal(SIG_MC6801_PORT_2, 0x00, 0xff);
 130         cpu->write_signal(SIG_MC6801_PORT_3, 0x00, 0xff);
 131         cpu->write_signal(SIG_MC6801_PORT_4, 0x00, 0xff);
 132 }
 133
 134 void VM::run()
 135 {
 136         event->drive();
 137 }
 138
 139 // ----------------------------------------------------------------------------
 140 // debugger
 141 // ----------------------------------------------------------------------------
 142
 143 #ifdef USE_DEBUGGER
 144 DEVICE *VM::get_cpu(int index)
 145 {
 146         if(index == 0) {
 147                 return cpu;
 148         }
 149         return NULL;
 150 }
 151 #endif
 152
 153 // ----------------------------------------------------------------------------
 154 // draw screen
 155 // ----------------------------------------------------------------------------
 156
 157 void VM::draw_screen()
 158 {
 159         for(int y = 0; y < 2; y++) {
 160                 for(int x = 0; x < 4; x++) {
 161                         lcd[x + 4 * y]->screen_update(50 * x - 4, 32 * y, y == 0);
 162                 }
 163         }
 164 }
 165
 166 // ----------------------------------------------------------------------------
 167 // soud manager
 168 // ----------------------------------------------------------------------------
 169
 170 void VM::initialize_sound(int rate, int samples)
 171 {
 172         // init sound manager
 173         event->initialize_sound(rate, samples);
 174
 175         // init sound gen
 176         pcm->initialize_sound(rate, 8000);
 177 }
 178
 179 uint16_t* VM::create_sound(int* extra_frames)
 180 {
 181         return event->create_sound(extra_frames);
 182 }
 183
 184 int VM::get_sound_buffer_ptr()
 185 {
 186         return event->get_sound_buffer_ptr();
 187 }
 188
 189 #ifdef USE_SOUND_VOLUME
 190 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 191 {
 192         if(ch == 0) {
 193                 pcm->set_volume(0, decibel_l, decibel_r);
 194         } if(ch == 1) {
 195                 drec->set_volume(0, decibel_l, decibel_r);
 196         } else if(ch == 2) {
 197                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 198                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 199                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 200         }
 201 }
 202 #endif
 203
 204 // ----------------------------------------------------------------------------
 205 // user interface
 206 // ----------------------------------------------------------------------------
 207
 208 void VM::play_tape(int drv, const _TCHAR* file_path)
 209 {
 210         drec->play_tape(file_path);
 211 //      drec->set_remote(true);
 212 }
 213
 214 void VM::rec_tape(int drv, const _TCHAR* file_path)
 215 {
 216         drec->rec_tape(file_path);
 217 //      drec->set_remote(true);
 218 }
 219
 220 void VM::close_tape(int drv)
 221 {
 222         emu->lock_vm();
 223         drec->close_tape();
 224         emu->unlock_vm();
 225 //      drec->set_remote(false);
 226 }
 227
 228 bool VM::is_tape_inserted(int drv)
 229 {
 230         return drec->is_tape_inserted();
 231 }
 232
 233 bool VM::is_tape_playing(int drv)
 234 {
 235         return drec->is_tape_playing();
 236 }
 237
 238 bool VM::is_tape_recording(int drv)
 239 {
 240         return drec->is_tape_recording();
 241 }
 242
 243 int VM::get_tape_position(int drv)
 244 {
 245         return drec->get_tape_position();
 246 }
 247
 248 const _TCHAR* VM::get_tape_message(int drv)
 249 {
 250         return drec->get_message();
 251 }
 252
 253 void VM::push_play(int drv)
 254 {
 255         drec->set_ff_rew(0);
 256         drec->set_remote(true);
 257 }
 258
 259 void VM::push_stop(int drv)
 260 {
 261         drec->set_remote(false);
 262 }
 263
 264 void VM::push_fast_forward(int drv)
 265 {
 266         drec->set_ff_rew(1);
 267         drec->set_remote(true);
 268 }
 269
 270 void VM::push_fast_rewind(int drv)
 271 {
 272         drec->set_ff_rew(-1);
 273         drec->set_remote(true);
 274 }
 275
 276 bool VM::is_frame_skippable()
 277 {
 278         return event->is_frame_skippable();
 279 }
 280
 281 void VM::update_config()
 282 {
 283         for(DEVICE* device = first_device; device; device = device->next_device) {
 284                 device->update_config();
 285         }
 286 }
 287
 288 #define STATE_VERSION   3
 289
 290 bool VM::process_state(FILEIO* state_fio, bool loading)
 291 {
 292         if(!state_fio->StateCheckUint32(STATE_VERSION)) {
 293                 return false;
 294         }
 295         for(DEVICE* device = first_device; device; device = device->next_device) {
 296                 // Note: typeid(foo).name is fixed by recent ABI.Not dec 6.
 297                 // const char *name = typeid(*device).name();
 298                 //       But, using get_device_name() instead of typeid(foo).name() 20181008 K.O
 299                 const char *name = device->get_device_name();
 300                 int len = strlen(name);
 301
 302                 if(!state_fio->StateCheckInt32(len)) {
 303                         if(loading) {
 304                                 printf("Class name len Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 305                         }
 306                         return false;
 307                 }
 308                 if(!state_fio->StateCheckBuffer(name, len, 1)) {
 309                         if(loading) {
 310                                 printf("Class name Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 311                         }
 312                         return false;
 313                 }
 314                 if(!device->process_state(state_fio, loading)) {
 315                         if(loading) {
 316                                 printf("Data loading Error: DEVID=%d\n", device->this_device_id);
 317                         }
 318                         return false;
 319                 }
 320         }
 321         state_fio->StateBuffer(ram, sizeof(ram), 1);
 322         return true;
 323 }