source/src/vm/bmjr/bmjr.cpp

   1 /*
   2         HITACH BASIC Master Jr Emulator 'eBASICMasterJr'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2015.08.28-
   6
   7         [ virtual machine ]
   8 */
   9
  10 #include "bmjr.h"
  11 #include "../../emu.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14
  15 #include "../datarec.h"
  16 #include "../mc6800.h"
  17 #include "../mc6820.h"
  18 #include "../noise.h"
  19
  20 #ifdef USE_DEBUGGER
  21 #include "../debugger.h"
  22 #endif
  23
  24 #include "./memory.h"
  25
  26 // ----------------------------------------------------------------------------
  27 // initialize
  28 // ----------------------------------------------------------------------------
  29 using BMJR::MEMORY;
  30
  31 VM::VM(EMU* parent_emu) : VM_TEMPLATE(parent_emu)
  32 {
  33         // create devices
  34         first_device = last_device = NULL;
  35         dummy = new DEVICE(this, emu);  // must be 1st device
  36         event = new EVENT(this, emu);   // must be 2nd device
  37
  38         drec = new DATAREC(this, emu);
  39         drec->set_context_noise_play(new NOISE(this, emu));
  40         drec->set_context_noise_stop(new NOISE(this, emu));
  41         drec->set_context_noise_fast(new NOISE(this, emu));
  42         cpu = new MC6800(this, emu);
  43         pia = new MC6820(this, emu);
  44
  45         memory = new MEMORY(this, emu);
  46
  47         // Set names
  48 #if defined(_USE_QT)
  49         dummy->set_device_name(_T("1st Dummy"));
  50 #endif
  51         // set contexts
  52         event->set_context_cpu(cpu);
  53         event->set_context_sound(drec);
  54         event->set_context_sound(memory);
  55         event->set_context_sound(drec->get_context_noise_play());
  56         event->set_context_sound(drec->get_context_noise_stop());
  57         event->set_context_sound(drec->get_context_noise_fast());
  58
  59         drec->set_context_ear(memory, SIG_MEMORY_DATAREC_EAR, 1);
  60
  61         memory->set_context_drec(drec);
  62         memory->set_context_cpu(cpu);
  63         memory->set_context_pia(pia);
  64
  65         // cpu bus
  66         cpu->set_context_mem(memory);
  67 #ifdef USE_DEBUGGER
  68         cpu->set_context_debugger(new DEBUGGER(this, emu));
  69 #endif
  70
  71         // initialize all devices
  72 #if defined(__GIT_REPO_VERSION)
  73         strncpy(_git_revision, __GIT_REPO_VERSION, sizeof(_git_revision) - 1);
  74 #endif
  75         for(DEVICE* device = first_device; device; device = device->next_device) {
  76                 device->initialize();
  77         }
  78 }
  79
  80 VM::~VM()
  81 {
  82         // delete all devices
  83         for(DEVICE* device = first_device; device;) {
  84                 DEVICE *next_device = device->next_device;
  85                 device->release();
  86                 delete device;
  87                 device = next_device;
  88         }
  89 }
  90
  91 DEVICE* VM::get_device(int id)
  92 {
  93         for(DEVICE* device = first_device; device; device = device->next_device) {
  94                 if(device->this_device_id == id) {
  95                         return device;
  96                 }
  97         }
  98         return NULL;
  99 }
 100
 101 // ----------------------------------------------------------------------------
 102 // drive virtual machine
 103 // ----------------------------------------------------------------------------
 104
 105 void VM::reset()
 106 {
 107         // reset all devices
 108         for(DEVICE* device = first_device; device; device = device->next_device) {
 109                 device->reset();
 110         }
 111 }
 112
 113 void VM::special_reset()
 114 {
 115         // reset all devices
 116         for(DEVICE* device = first_device; device; device = device->next_device) {
 117                 device->reset();
 118         }
 119 }
 120
 121 void VM::run()
 122 {
 123         event->drive();
 124 }
 125
 126 double VM::get_frame_rate()
 127 {
 128         return event->get_frame_rate();
 129 }
 130
 131 // ----------------------------------------------------------------------------
 132 // debugger
 133 // ----------------------------------------------------------------------------
 134
 135 #ifdef USE_DEBUGGER
 136 DEVICE *VM::get_cpu(int index)
 137 {
 138         if(index == 0) {
 139                 return cpu;
 140         }
 141         return NULL;
 142 }
 143 #endif
 144
 145 // ----------------------------------------------------------------------------
 146 // draw screen
 147 // ----------------------------------------------------------------------------
 148
 149 void VM::draw_screen()
 150 {
 151         memory->draw_screen();
 152 }
 153
 154 // ----------------------------------------------------------------------------
 155 // soud manager
 156 // ----------------------------------------------------------------------------
 157
 158 void VM::initialize_sound(int rate, int samples)
 159 {
 160         // init sound manager
 161         event->initialize_sound(rate, samples);
 162 }
 163
 164 uint16_t* VM::create_sound(int* extra_frames)
 165 {
 166         return event->create_sound(extra_frames);
 167 }
 168
 169 int VM::get_sound_buffer_ptr()
 170 {
 171         return event->get_sound_buffer_ptr();
 172 }
 173
 174 #ifdef USE_SOUND_VOLUME
 175 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 176 {
 177         if(ch == 0) {
 178                 memory->set_volume(0, decibel_l, decibel_r);
 179         } else if(ch == 1) {
 180                 drec->set_volume(0, decibel_l, decibel_r);
 181         } else if(ch == 2) {
 182                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 183                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 184                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 185         }
 186 }
 187 #endif
 188
 189 // ----------------------------------------------------------------------------
 190 // notify key
 191 // ----------------------------------------------------------------------------
 192
 193 void VM::key_down(int code, bool repeat)
 194 {
 195         if(!repeat) {
 196                 memory->key_down(code);
 197         }
 198 }
 199
 200 void VM::key_up(int code)
 201 {
 202 }
 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
 291 bool VM::process_state(FILEIO* state_fio, bool loading)
 292 {
 293         if(!state_fio->StateCheckUint32(STATE_VERSION)) {
 294                 return false;
 295         }
 296         for(DEVICE* device = first_device; device; device = device->next_device) {
 297                 // Note: typeid(foo).name is fixed by recent ABI.Not dec 6.
 298                 // const char *name = typeid(*device).name();
 299                 //       But, using get_device_name() instead of typeid(foo).name() 20181008 K.O
 300                 const char *name = device->get_device_name();
 301                 int len = strlen(name);
 302
 303                 if(!state_fio->StateCheckInt32(len)) {
 304                         if(loading) {
 305                                 printf("Class name len Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 306                         }
 307                         return false;
 308                 }
 309                 if(!state_fio->StateCheckBuffer(name, len, 1)) {
 310                         if(loading) {
 311                                 printf("Class name Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 312                         }
 313                         return false;
 314                 }
 315                 if(!device->process_state(state_fio, loading)) {
 316                         if(loading) {
 317                                 printf("Data loading Error: DEVID=%d\n", device->this_device_id);
 318                         }
 319                         return false;
 320                 }
 321         }
 322         // Machine specified.
 323         if(loading) {
 324                 update_config();
 325         }
 326         return true;
 327 }