source/src/vm/jr100/jr100.cpp

   1 /*
   2         National JR-100 Emulator 'eJR-100'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2015.08.27-
   6
   7         [ virtual machine ]
   8 */
   9
  10 #include "jr100.h"
  11 #include "../../emu.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14
  15 #include "../datarec.h"
  16 //#include "../mc6800.h"
  17 #include "../mb8861.h"
  18 #include "../noise.h"
  19 #include "../not.h"
  20 #include "../pcm1bit.h"
  21 #include "../sy6522.h"
  22
  23 #ifdef USE_DEBUGGER
  24 #include "../debugger.h"
  25 #endif
  26
  27 #include "./memory.h"
  28
  29 using JR100::MEMORY;
  30 // ----------------------------------------------------------------------------
  31 // initialize
  32 // ----------------------------------------------------------------------------
  33
  34 VM::VM(EMU_TEMPLATE* 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         dummy->set_device_name(_T("1st Dummy"));
  41
  42         drec = new DATAREC(this, emu);
  43         drec->set_context_noise_play(new NOISE(this, emu));
  44         drec->set_context_noise_stop(new NOISE(this, emu));
  45         drec->set_context_noise_fast(new NOISE(this, emu));
  46         //cpu = new MC6800(this, emu);  // MB8861N
  47         cpu = new MB8861(this, emu);    // MB8861N
  48         not_mic = new NOT(this, emu);
  49         not_mic->set_device_name(_T("NOT Gate (Mic)"));
  50         not_ear = new NOT(this, emu);
  51         not_ear->set_device_name(_T("NOT Gate (Ear)"));
  52         pcm = new PCM1BIT(this, emu);
  53         via = new SY6522(this, emu);
  54
  55         memory = new MEMORY(this, emu);
  56         // set contexts
  57         event->set_context_cpu(cpu);
  58         event->set_context_sound(pcm);
  59         event->set_context_sound(drec);
  60         event->set_context_sound(drec->get_context_noise_play());
  61         event->set_context_sound(drec->get_context_noise_stop());
  62         event->set_context_sound(drec->get_context_noise_fast());
  63
  64         via->set_context_port_a(memory, SIG_MEMORY_VIA_PORT_A, 0xff, 0);
  65         via->set_context_port_b(memory, SIG_MEMORY_VIA_PORT_B, 0xff, 0);
  66         via->set_context_port_b(pcm, SIG_PCM1BIT_SIGNAL, 0x80, 0);      // PB7 -> Speaker
  67         via->set_context_port_b(via, SIG_MEMORY_VIA_PORT_B, 0x80, -1);  // PB7 -> PB6
  68         via->set_context_cb2(not_mic, SIG_NOT_INPUT, 1);                // CB2 -> NOT -> MIC
  69         via->set_constant_clock(CPU_CLOCKS >> 2);
  70         not_mic->set_context_out(drec, SIG_DATAREC_MIC, 1);
  71         drec->set_context_ear(not_ear, SIG_NOT_INPUT, 1);               // EAR -> NOT -> CA1,CB1
  72         not_ear->set_context_out(via, SIG_SY6522_PORT_CA1, 1);
  73         not_ear->set_context_out(via, SIG_SY6522_PORT_CB1, 1);
  74         // Sound:: Force realtime rendering. This is temporally fix. 20161024 K.O
  75         //pcm->set_realtime_render(true);
  76
  77         memory->set_context_via(via);
  78
  79         // cpu bus
  80         cpu->set_context_mem(memory);
  81 #ifdef USE_DEBUGGER
  82         cpu->set_context_debugger(new DEBUGGER(this, emu));
  83 //      pcm->set_context_debugger(new DEBUGGER(this, emu));
  84 #endif
  85
  86         // initialize all devices
  87 #if defined(__GIT_REPO_VERSION)
  88         set_git_repo_version(__GIT_REPO_VERSION);
  89 #endif
  90         initialize_devices();
  91 }
  92
  93 VM::~VM()
  94 {
  95         // delete all devices
  96         for(DEVICE* device = first_device; device;) {
  97                 DEVICE *next_device = device->next_device;
  98                 device->release();
  99                 delete device;
 100                 device = next_device;
 101         }
 102 }
 103
 104 DEVICE* VM::get_device(int id)
 105 {
 106         for(DEVICE* device = first_device; device; device = device->next_device) {
 107                 if(device->this_device_id == id) {
 108                         return device;
 109                 }
 110         }
 111         return NULL;
 112 }
 113
 114 // ----------------------------------------------------------------------------
 115 // drive virtual machine
 116 // ----------------------------------------------------------------------------
 117
 118 void VM::reset()
 119 {
 120         // reset all devices
 121         for(DEVICE* device = first_device; device; device = device->next_device) {
 122                 device->reset();
 123         }
 124 }
 125
 126 void VM::special_reset(int num)
 127 {
 128         // reset all devices
 129         for(DEVICE* device = first_device; device; device = device->next_device) {
 130                 device->reset();
 131         }
 132 }
 133
 134 void VM::run()
 135 {
 136         event->drive();
 137 }
 138
 139 double VM::get_frame_rate()
 140 {
 141         return event->get_frame_rate();
 142 }
 143
 144 // ----------------------------------------------------------------------------
 145 // debugger
 146 // ----------------------------------------------------------------------------
 147
 148 #ifdef USE_DEBUGGER
 149 DEVICE *VM::get_cpu(int index)
 150 {
 151         if(index == 0) {
 152                 return cpu;
 153         }
 154         return NULL;
 155 }
 156 #endif
 157
 158 // ----------------------------------------------------------------------------
 159 // draw screen
 160 // ----------------------------------------------------------------------------
 161
 162 void VM::draw_screen()
 163 {
 164         memory->draw_screen();
 165 }
 166
 167 // ----------------------------------------------------------------------------
 168 // soud manager
 169 // ----------------------------------------------------------------------------
 170
 171 void VM::initialize_sound(int rate, int samples)
 172 {
 173         // init sound manager
 174         event->initialize_sound(rate, samples);
 175
 176         // init sound gen
 177         pcm->initialize_sound(rate, 5000);
 178 }
 179
 180 uint16_t* VM::create_sound(int* extra_frames)
 181 {
 182         return event->create_sound(extra_frames);
 183 }
 184
 185 int VM::get_sound_buffer_ptr()
 186 {
 187         return event->get_sound_buffer_ptr();
 188 }
 189
 190 #ifdef USE_SOUND_VOLUME
 191 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 192 {
 193         if(ch == 0) {
 194                 pcm->set_volume(0, decibel_l, decibel_r);
 195         } else if(ch == 1) {
 196                 drec->set_volume(0, decibel_l, decibel_r);
 197         } else if(ch == 2) {
 198                 drec->get_context_noise_play()->set_volume(0, decibel_l, decibel_r);
 199                 drec->get_context_noise_stop()->set_volume(0, decibel_l, decibel_r);
 200                 drec->get_context_noise_fast()->set_volume(0, decibel_l, decibel_r);
 201         }
 202 }
 203 #endif
 204
 205 // ----------------------------------------------------------------------------
 206 // user interface
 207 // ----------------------------------------------------------------------------
 208
 209 void VM::play_tape(int drv, const _TCHAR* file_path)
 210 {
 211         bool remote = drec->get_remote();
 212
 213         if(drec->play_tape(file_path) && remote) {
 214                 // if machine already sets remote on, start playing now
 215                 push_play(drv);
 216         }
 217 }
 218
 219 void VM::rec_tape(int drv, const _TCHAR* file_path)
 220 {
 221         bool remote = drec->get_remote();
 222
 223         if(drec->rec_tape(file_path) && remote) {
 224                 // if machine already sets remote on, start recording now
 225                 push_play(drv);
 226         }
 227 }
 228
 229 void VM::close_tape(int drv)
 230 {
 231         emu->lock_vm();
 232         drec->close_tape();
 233         emu->unlock_vm();
 234         drec->set_remote(false);
 235 }
 236
 237 bool VM::is_tape_inserted(int drv)
 238 {
 239         return drec->is_tape_inserted();
 240 }
 241
 242 bool VM::is_tape_playing(int drv)
 243 {
 244         return drec->is_tape_playing();
 245 }
 246
 247 bool VM::is_tape_recording(int drv)
 248 {
 249         return drec->is_tape_recording();
 250 }
 251
 252 int VM::get_tape_position(int drv)
 253 {
 254         return drec->get_tape_position();
 255 }
 256
 257 const _TCHAR* VM::get_tape_message(int drv)
 258 {
 259         return drec->get_message();
 260 }
 261
 262 void VM::push_play(int drv)
 263 {
 264         drec->set_remote(false);
 265         drec->set_ff_rew(0);
 266         drec->set_remote(true);
 267 }
 268
 269 void VM::push_stop(int drv)
 270 {
 271         drec->set_remote(false);
 272 }
 273
 274 void VM::push_fast_forward(int drv)
 275 {
 276         drec->set_remote(false);
 277         drec->set_ff_rew(1);
 278         drec->set_remote(true);
 279 }
 280
 281 void VM::push_fast_rewind(int drv)
 282 {
 283         drec->set_remote(false);
 284         drec->set_ff_rew(-1);
 285         drec->set_remote(true);
 286 }
 287
 288 bool VM::is_frame_skippable()
 289 {
 290         return event->is_frame_skippable();
 291 }
 292
 293 void VM::update_config()
 294 {
 295         for(DEVICE* device = first_device; device; device = device->next_device) {
 296                 device->update_config();
 297         }
 298 }
 299
 300 double VM::get_current_usec()
 301 {
 302         if(event == NULL) return 0.0;
 303         return event->get_current_usec();
 304 }
 305
 306 uint64_t VM::get_current_clock_uint64()
 307 {
 308                 if(event == NULL) return (uint64_t)0;
 309                 return event->get_current_clock_uint64();
 310 }
 311
 312 #define STATE_VERSION   3
 313
 314 bool VM::process_state(FILEIO* state_fio, bool loading)
 315 {
 316         if(!(VM_TEMPLATE::process_state_core(state_fio, loading, STATE_VERSION))) {
 317                 return false;
 318         }
 319         return true;
 320 }