source/src/vm/ex80/ex80.cpp

   1 /*
   2         TOSHIBA EX-80 Emulator 'eEX-80'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2015.12.10-
   6
   7         [ virtual machine ]
   8 */
   9
  10 #include "ex80.h"
  11 #include "../../emu.h"
  12 #include "../device.h"
  13 #include "../event.h"
  14
  15 #include "../i8080.h"
  16 #include "../i8251.h"
  17 #include "../i8255.h"
  18 #include "../io.h"
  19 #include "../pcm1bit.h"
  20
  21 #ifdef USE_DEBUGGER
  22 #include "../debugger.h"
  23 #endif
  24
  25 #include "./cmt.h"
  26 #include "./display.h"
  27 #include "./keyboard.h"
  28 #include "./memory.h"
  29
  30 using EX80::CMT;
  31 using EX80::DISPLAY;
  32 using EX80::KEYBOARD;
  33 using EX80::MEMORY;
  34
  35 // ----------------------------------------------------------------------------
  36 // initialize
  37 // ----------------------------------------------------------------------------
  38
  39 VM::VM(EMU* parent_emu) : VM_TEMPLATE(parent_emu)
  40 {
  41         // create devices
  42         first_device = last_device = NULL;
  43         dummy = new DEVICE(this, emu);  // must be 1st device
  44         event = new EVENT(this, emu);   // must be 2nd device
  45
  46         sio = new I8251(this, emu);
  47         pio = new I8255(this, emu);
  48         io = new IO(this, emu);
  49         pcm = new PCM1BIT(this, emu);
  50         cpu = new I8080(this, emu);
  51
  52         cmt = new CMT(this, emu);
  53         display = new DISPLAY(this, emu);
  54         keyboard = new KEYBOARD(this, emu);
  55         memory = new MEMORY(this, emu);
  56         // Set names
  57 #if defined(_USE_QT)
  58         dummy->set_device_name(_T("1st Dummy"));
  59
  60         pio->set_device_name(_T("i8255(SOUND/KEY/DISPLAY)"));
  61         sio->set_device_name(_T("i8251(CMT)"));
  62         pcm->set_device_name(_T("SOUND OUT"));
  63 #endif
  64
  65         // set contexts
  66         event->set_context_cpu(cpu);
  67         event->set_context_sound(pcm);
  68
  69         sio->set_context_out(cmt, SIG_CMT_OUT);
  70         pio->set_context_port_c(pcm, SIG_PCM1BIT_SIGNAL, 0x08, 0);
  71         pio->set_context_port_c(keyboard, SIG_KEYBOARD_COLUMN, 0x70, 0);
  72         pio->set_context_port_c(display, SIG_DISPLAY_DMA, 0x80, 0);
  73         // Sound:: Force realtime rendering. This is temporally fix. 20161024 K.O
  74         //pcm->set_realtime_render(true);
  75
  76         cmt->set_context_sio(sio);
  77         display->set_context_cpu(cpu);
  78         display->set_ram_ptr(memory->get_ram());
  79         keyboard->set_context_pio(pio);
  80         memory->set_context_cpu(cpu);
  81
  82         // cpu bus
  83         cpu->set_context_mem(memory);
  84         cpu->set_context_io(io);
  85         cpu->set_context_intr(dummy);
  86 #ifdef USE_DEBUGGER
  87         cpu->set_context_debugger(new DEBUGGER(this, emu));
  88 #endif
  89
  90         // io bus
  91         io->set_iomap_range_rw(0xdc, 0xdd, sio);
  92         io->set_iomap_range_rw(0xf8, 0xfb, pio);
  93
  94         // initialize all devices
  95 #if defined(__GIT_REPO_VERSION)
  96         strncpy(_git_revision, __GIT_REPO_VERSION, sizeof(_git_revision) - 1);
  97 #endif
  98         for(DEVICE* device = first_device; device; device = device->next_device) {
  99                 device->initialize();
 100         }
 101 }
 102
 103 VM::~VM()
 104 {
 105         // delete all devices
 106         for(DEVICE* device = first_device; device;) {
 107                 DEVICE *next_device = device->next_device;
 108                 device->release();
 109                 delete device;
 110                 device = next_device;
 111         }
 112 }
 113
 114 DEVICE* VM::get_device(int id)
 115 {
 116         for(DEVICE* device = first_device; device; device = device->next_device) {
 117                 if(device->this_device_id == id) {
 118                         return device;
 119                 }
 120         }
 121         return NULL;
 122 }
 123
 124 // ----------------------------------------------------------------------------
 125 // drive virtual machine
 126 // ----------------------------------------------------------------------------
 127
 128 void VM::reset()
 129 {
 130         // reset all devices
 131         for(DEVICE* device = first_device; device; device = device->next_device) {
 132                 device->reset();
 133         }
 134 }
 135
 136 void VM::run()
 137 {
 138         event->drive();
 139 }
 140
 141 // ----------------------------------------------------------------------------
 142 // debugger
 143 // ----------------------------------------------------------------------------
 144
 145 #ifdef USE_DEBUGGER
 146 DEVICE *VM::get_cpu(int index)
 147 {
 148         if(index == 0) {
 149                 return cpu;
 150         }
 151         return NULL;
 152 }
 153 #endif
 154
 155 // ----------------------------------------------------------------------------
 156 // draw screen
 157 // ----------------------------------------------------------------------------
 158
 159 void VM::draw_screen()
 160 {
 161         display->draw_screen();
 162 }
 163
 164 int VM::max_draw_ranges()
 165 {
 166         return (config.monitor_type == 0) ? 9 : 8;
 167 }
 168
 169 // ----------------------------------------------------------------------------
 170 // soud manager
 171 // ----------------------------------------------------------------------------
 172
 173 void VM::initialize_sound(int rate, int samples)
 174 {
 175         // init sound manager
 176         event->initialize_sound(rate, samples);
 177
 178         // init sound gen
 179         pcm->initialize_sound(rate, 8000);
 180 }
 181
 182 uint16_t* VM::create_sound(int* extra_frames)
 183 {
 184         return event->create_sound(extra_frames);
 185 }
 186
 187 int VM::get_sound_buffer_ptr()
 188 {
 189         return event->get_sound_buffer_ptr();
 190 }
 191
 192 #ifdef USE_SOUND_VOLUME
 193 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
 194 {
 195         if(ch == 0) {
 196                 pcm->set_volume(0, decibel_l, decibel_r);
 197         }
 198 }
 199 #endif
 200
 201 // ----------------------------------------------------------------------------
 202 // user interface
 203 // ----------------------------------------------------------------------------
 204
 205 void VM::load_binary(int drv, const _TCHAR* file_path)
 206 {
 207         if(drv == 0) {
 208                 memory->load_binary(file_path);
 209         }
 210 }
 211
 212 void VM::save_binary(int drv, const _TCHAR* file_path)
 213 {
 214         if(drv == 0) {
 215                 memory->save_binary(file_path);
 216         }
 217 }
 218
 219 void VM::play_tape(int drv, const _TCHAR* file_path)
 220 {
 221         cmt->play_tape(file_path);
 222 }
 223
 224 void VM::rec_tape(int drv, const _TCHAR* file_path)
 225 {
 226         cmt->rec_tape(file_path);
 227 }
 228
 229 void VM::close_tape(int drv)
 230 {
 231         cmt->close_tape();
 232 }
 233
 234 bool VM::is_tape_inserted(int drv)
 235 {
 236         return cmt->is_tape_inserted();
 237 }
 238
 239 bool VM::is_frame_skippable()
 240 {
 241         return event->is_frame_skippable();
 242 }
 243
 244 void VM::update_config()
 245 {
 246         for(DEVICE* device = first_device; device; device = device->next_device) {
 247                 device->update_config();
 248         }
 249 }
 250
 251 #define STATE_VERSION   2
 252
 253 bool VM::process_state(FILEIO* state_fio, bool loading)
 254 {
 255         if(!state_fio->StateCheckUint32(STATE_VERSION)) {
 256                 return false;
 257         }
 258         for(DEVICE* device = first_device; device; device = device->next_device) {
 259                 // Note: typeid(foo).name is fixed by recent ABI.Not dec 6.
 260                 // const char *name = typeid(*device).name();
 261                 //       But, using get_device_name() instead of typeid(foo).name() 20181008 K.O
 262                 const char *name = device->get_device_name();
 263                 int len = strlen(name);
 264
 265                 if(!state_fio->StateCheckInt32(len)) {
 266                         if(loading) {
 267                                 printf("Class name len Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 268                         }
 269                         return false;
 270                 }
 271                 if(!state_fio->StateCheckBuffer(name, len, 1)) {
 272                         if(loading) {
 273                                 printf("Class name Error: DEVID=%d EXPECT=%s\n", device->this_device_id, name);
 274                         }
 275                         return false;
 276                 }
 277                 if(!device->process_state(state_fio, loading)) {
 278                         if(loading) {
 279                                 printf("Data loading Error: DEVID=%d\n", device->this_device_id);
 280                         }
 281                         return false;
 282                 }
 283         }
 284         // Machine specified.
 285         return true;
 286 }
 287