2 NEC PC-100 Emulator 'ePC-100'
4 Author : Takeda.Toshiya
11 #include "../../emu.h"
12 #include "../device.h"
23 #include "../memory.h"
24 #include "../msm58321.h"
26 #include "../pcm1bit.h"
27 #include "../upd765a.h"
30 #include "../debugger.h"
37 // ----------------------------------------------------------------------------
39 // ----------------------------------------------------------------------------
41 VM::VM(EMU* parent_emu) : emu(parent_emu)
44 first_device = last_device = NULL;
45 dummy = new DEVICE(this, emu); // must be 1st device
46 event = new EVENT(this, emu); // must be 2nd device
48 and_drq = new AND(this, emu);
49 beep = new BEEP(this, emu);
50 sio = new I8251(this, emu);
51 pio0 = new I8255(this, emu);
52 pio0->set_device_name(_T("8255 PIO (RTC)"));
53 pio1 = new I8255(this, emu);
54 pio1->set_device_name(_T("8255 PIO (CRTC)"));
55 pic = new I8259(this, emu);
56 cpu = new I286(this, emu);
57 io = new IO(this, emu);
58 memory = new MEMORY(this, emu);
59 rtc = new MSM58321(this, emu);
60 pcm = new PCM1BIT(this, emu);
61 fdc = new UPD765A(this, emu);
62 fdc->set_context_noise_seek(new NOISE(this, emu));
63 fdc->set_context_noise_head_down(new NOISE(this, emu));
64 fdc->set_context_noise_head_up(new NOISE(this, emu));
66 crtc = new CRTC(this, emu);
67 ioctrl = new IOCTRL(this, emu);
68 kanji = new KANJI(this, emu);
71 event->set_context_cpu(cpu);
72 event->set_context_sound(beep);
73 event->set_context_sound(pcm);
74 event->set_context_sound(fdc->get_context_noise_seek());
75 event->set_context_sound(fdc->get_context_noise_head_down());
76 event->set_context_sound(fdc->get_context_noise_head_up());
78 and_drq->set_context_out(cpu, SIG_CPU_NMI, 1);
79 and_drq->set_mask(SIG_AND_BIT_0 | SIG_AND_BIT_1);
80 sio->set_context_rxrdy(pic, SIG_I8259_IR1, 1);
81 pio0->set_context_port_a(rtc, SIG_MSM58321_READ, 1, 0);
82 pio0->set_context_port_a(rtc, SIG_MSM58321_WRITE, 2, 0);
83 pio0->set_context_port_a(rtc, SIG_MSM58321_ADDR_WRITE, 4, 0);
84 pio0->set_context_port_c(rtc, SIG_MSM58321_DATA, 0x0f, 0);
85 pio1->set_context_port_a(crtc, SIG_CRTC_BITMASK_LOW, 0xff, 0);
86 pio1->set_context_port_b(crtc, SIG_CRTC_BITMASK_HIGH, 0xff, 0);
87 pio1->set_context_port_c(crtc, SIG_CRTC_VRAM_PLANE, 0x3f, 0);
88 pio1->set_context_port_c(and_drq, SIG_AND_BIT_0, 0x80, 0);
89 pio1->set_context_port_c(ioctrl, SIG_IOCTRL_RESET, 0x40, 0);
90 pic->set_context_cpu(cpu);
91 rtc->set_context_data(pio0, SIG_I8255_PORT_C, 0x0f, 0);
92 rtc->set_context_busy(pio0, SIG_I8255_PORT_C, 0x10);
93 fdc->set_context_irq(cpu, SIG_CPU_NMI, 1);
94 fdc->set_context_drq(and_drq, SIG_AND_BIT_1, 1);
96 crtc->set_context_pic(pic);
97 ioctrl->set_context_pic(pic);
98 ioctrl->set_context_fdc(fdc);
99 ioctrl->set_context_beep(beep);
100 ioctrl->set_context_pcm(pcm);
103 cpu->set_context_mem(memory);
104 cpu->set_context_io(io);
105 cpu->set_context_intr(pic);
107 cpu->set_context_debugger(new DEBUGGER(this, emu));
111 memset(ram, 0, sizeof(ram));
112 memset(ipl, 0xff, sizeof(ipl));
114 memory->read_bios(_T("IPL.ROM"), ipl, sizeof(ipl));
116 memory->set_memory_rw(0x00000, 0xbffff, ram);
117 memory->set_memory_mapped_io_rw(0xc0000, 0xdffff, crtc);
118 memory->set_memory_r(0xf8000, 0xfffff, ipl);
121 io->set_iomap_alias_rw(0x00, pic, 0);
122 io->set_iomap_alias_rw(0x02, pic, 1);
123 // io->set_iomap_alias_rw(0x04, dma, 0);
124 // io->set_iomap_alias_rw(0x06, dma, 1);
125 io->set_iomap_alias_r(0x08, fdc, 0);
126 io->set_iomap_alias_rw(0x0a, fdc, 1);
127 io->set_iomap_alias_rw(0x10, pio0, 0);
128 io->set_iomap_alias_rw(0x12, pio0, 1);
129 io->set_iomap_alias_rw(0x14, pio0, 2);
130 io->set_iomap_alias_rw(0x16, pio0, 3);
131 io->set_iomap_alias_rw(0x18, pio1, 0);
132 io->set_iomap_alias_rw(0x1a, pio1, 1);
133 io->set_iomap_alias_rw(0x1c, pio1, 2);
134 io->set_iomap_alias_rw(0x1e, pio1, 3);
135 io->set_iomap_single_r(0x20, ioctrl);
136 io->set_iomap_single_rw(0x22, ioctrl);
137 io->set_iomap_single_w(0x24, ioctrl);
138 io->set_iomap_alias_rw(0x28, sio, 0);
139 io->set_iomap_alias_rw(0x2a, sio, 1);
140 io->set_iomap_single_rw(0x30, crtc);
141 io->set_iomap_single_rw(0x38, crtc);
142 io->set_iomap_single_rw(0x3a, crtc);
143 io->set_iomap_single_rw(0x3c, crtc);
144 io->set_iomap_single_rw(0x3e, crtc);
145 for(int i = 0x40; i < 0x62; i++) {
146 io->set_iomap_single_rw(i, crtc);
148 io->set_iomap_single_rw(0x80, kanji);
149 io->set_iomap_single_rw(0x81, kanji);
150 io->set_iomap_single_w(0x84, kanji);
151 io->set_iomap_single_w(0x86, kanji);
153 // initialize all devices
154 for(DEVICE* device = first_device; device; device = device->next_device) {
155 device->initialize();
162 // delete all devices
163 for(DEVICE* device = first_device; device;) {
164 DEVICE *next_device = device->next_device;
167 device = next_device;
171 DEVICE* VM::get_device(int id)
173 for(DEVICE* device = first_device; device; device = device->next_device) {
174 if(device->this_device_id == id) {
181 // ----------------------------------------------------------------------------
182 // drive virtual machine
183 // ----------------------------------------------------------------------------
188 for(DEVICE* device = first_device; device; device = device->next_device) {
191 for(int i = 0; i < 4; i++) {
192 if(config.drive_type) {
193 fdc->set_drive_type(i, DRIVE_TYPE_2DD);
195 fdc->set_drive_type(i, DRIVE_TYPE_2D);
205 // ----------------------------------------------------------------------------
207 // ----------------------------------------------------------------------------
210 DEVICE *VM::get_cpu(int index)
219 // ----------------------------------------------------------------------------
221 // ----------------------------------------------------------------------------
223 void VM::draw_screen()
228 // ----------------------------------------------------------------------------
230 // ----------------------------------------------------------------------------
232 void VM::initialize_sound(int rate, int samples)
234 // init sound manager
235 event->initialize_sound(rate, samples);
238 beep->initialize_sound(rate, 2400, 8000);
239 pcm->initialize_sound(rate, 8000);
242 uint16_t* VM::create_sound(int* extra_frames)
244 return event->create_sound(extra_frames);
247 int VM::get_sound_buffer_ptr()
249 return event->get_sound_buffer_ptr();
252 #ifdef USE_SOUND_VOLUME
253 void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
256 beep->set_volume(0, decibel_l, decibel_r);
258 pcm->set_volume(0, decibel_l, decibel_r);
260 fdc->get_context_noise_seek()->set_volume(0, decibel_l, decibel_r);
261 fdc->get_context_noise_head_down()->set_volume(0, decibel_l, decibel_r);
262 fdc->get_context_noise_head_up()->set_volume(0, decibel_l, decibel_r);
267 // ----------------------------------------------------------------------------
269 // ----------------------------------------------------------------------------
271 void VM::key_down(int code, bool repeat)
273 ioctrl->key_down(code);
276 void VM::key_up(int code)
278 ioctrl->key_up(code);
281 bool VM::get_caps_locked()
283 return ioctrl->get_caps_locked();
286 bool VM::get_kana_locked()
288 return ioctrl->get_kana_locked();
291 // ----------------------------------------------------------------------------
293 // ----------------------------------------------------------------------------
295 void VM::open_floppy_disk(int drv, const _TCHAR* file_path, int bank)
297 fdc->open_disk(drv, file_path, bank);
300 void VM::close_floppy_disk(int drv)
302 fdc->close_disk(drv);
305 bool VM::is_floppy_disk_inserted(int drv)
307 return fdc->is_disk_inserted(drv);
310 void VM::is_floppy_disk_protected(int drv, bool value)
312 fdc->is_disk_protected(drv, value);
315 bool VM::is_floppy_disk_protected(int drv)
317 return fdc->is_disk_protected(drv);
320 uint32_t VM::is_floppy_disk_accessed()
322 return fdc->read_signal(0);
325 bool VM::is_frame_skippable()
327 return event->is_frame_skippable();
330 void VM::update_config()
332 for(DEVICE* device = first_device; device; device = device->next_device) {
333 device->update_config();
337 #define STATE_VERSION 3
339 #include "../../statesub.h"
341 void VM::decl_state(void)
343 state_entry = new csp_state_utils(STATE_VERSION, 0, (_TCHAR *)(_T("CSP::PC_100_HEAD")));
344 DECL_STATE_ENTRY_MULTI(void, ram, sizeof(ram));
345 for(DEVICE* device = first_device; device; device = device->next_device) {
346 device->decl_state();
350 void VM::save_state(FILEIO* state_fio)
352 //state_fio->FputUint32(STATE_VERSION);
354 if(state_entry != NULL) {
355 state_entry->save_state(state_fio);
357 for(DEVICE* device = first_device; device; device = device->next_device) {
358 device->save_state(state_fio);
360 //state_fio->Fwrite(ram, sizeof(ram), 1);
363 bool VM::load_state(FILEIO* state_fio)
365 //if(state_fio->FgetUint32() != STATE_VERSION) {
369 if(state_entry != NULL) {
370 mb = state_entry->load_state(state_fio);
373 emu->out_debug_log("INFO: HEADER DATA ERROR");
376 for(DEVICE* device = first_device; device; device = device->next_device) {
377 if(!device->load_state(state_fio)) {
381 state_fio->Fread(ram, sizeof(ram), 1);