-/*\r
- NEC PC-100 Emulator 'ePC-100'\r
-\r
- Author : Takeda.Toshiya\r
- Date : 2008.07.12 -\r
-\r
- [ virtual machine ]\r
-*/\r
-\r
-#include "pc100.h"\r
-#include "../../emu.h"\r
-#include "../device.h"\r
-#include "../event.h"\r
-\r
-#include "../and.h"\r
-#include "../beep.h"\r
-#include "../disk.h"\r
-#include "../i8251.h"\r
-#include "../i8255.h"\r
-#include "../i8259.h"\r
-#include "../i286.h"\r
-#include "../io.h"\r
-#include "../memory.h"\r
-#include "../msm58321.h"\r
-#include "../pcm1bit.h"\r
-#include "../upd765a.h"\r
-\r
-#ifdef USE_DEBUGGER\r
-#include "../debugger.h"\r
-#endif\r
-\r
-#include "crtc.h"\r
-#include "ioctrl.h"\r
-#include "kanji.h"\r
-\r
-#include "../../fileio.h"\r
-\r
-// ----------------------------------------------------------------------------\r
-// initialize\r
-// ----------------------------------------------------------------------------\r
-\r
-VM::VM(EMU* parent_emu) : emu(parent_emu)\r
-{\r
- // create devices\r
- first_device = last_device = NULL;\r
- dummy = new DEVICE(this, emu); // must be 1st device\r
- event = new EVENT(this, emu); // must be 2nd device\r
- \r
- and = new AND(this, emu);\r
- beep = new BEEP(this, emu);\r
- sio = new I8251(this, emu);\r
- pio0 = new I8255(this, emu);\r
- pio1 = new I8255(this, emu);\r
- pic = new I8259(this, emu);\r
- cpu = new I286(this, emu);\r
- io = new IO(this, emu);\r
- memory = new MEMORY(this, emu);\r
- rtc = new MSM58321(this, emu);\r
- pcm = new PCM1BIT(this, emu);\r
- fdc = new UPD765A(this, emu);\r
- \r
- crtc = new CRTC(this, emu);\r
- ioctrl = new IOCTRL(this, emu);\r
- kanji = new KANJI(this, emu);\r
- \r
- // set contexts\r
- event->set_context_cpu(cpu);\r
- event->set_context_sound(beep);\r
- event->set_context_sound(pcm);\r
- \r
- and->set_context_out(cpu, SIG_CPU_NMI, 1);\r
- and->set_mask(SIG_AND_BIT_0 | SIG_AND_BIT_1);\r
- sio->set_context_rxrdy(pic, SIG_I8259_IR1, 1);\r
- pio0->set_context_port_a(rtc, SIG_MSM58321_READ, 1, 0);\r
- pio0->set_context_port_a(rtc, SIG_MSM58321_WRITE, 2, 0);\r
- pio0->set_context_port_a(rtc, SIG_MSM58321_ADDR_WRITE, 4, 0);\r
- pio0->set_context_port_c(rtc, SIG_MSM58321_DATA, 0x0f, 0);\r
- pio1->set_context_port_a(crtc, SIG_CRTC_BITMASK_LOW, 0xff, 0);\r
- pio1->set_context_port_b(crtc, SIG_CRTC_BITMASK_HIGH, 0xff, 0);\r
- pio1->set_context_port_c(crtc, SIG_CRTC_VRAM_PLANE, 0x3f, 0);\r
- pio1->set_context_port_c(and, SIG_AND_BIT_0, 0x80, 0);\r
- pio1->set_context_port_c(ioctrl, SIG_IOCTRL_RESET, 0x40, 0);\r
- pic->set_context_cpu(cpu);\r
- rtc->set_context_data(pio0, SIG_I8255_PORT_C, 0x0f, 0);\r
- rtc->set_context_busy(pio0, SIG_I8255_PORT_C, 0x10);\r
- fdc->set_context_irq(cpu, SIG_CPU_NMI, 1);\r
- fdc->set_context_drq(and, SIG_AND_BIT_1, 1);\r
- \r
- crtc->set_context_pic(pic);\r
- ioctrl->set_context_pic(pic);\r
- ioctrl->set_context_fdc(fdc);\r
- ioctrl->set_context_beep(beep);\r
- ioctrl->set_context_pcm(pcm);\r
- \r
- // cpu bus\r
- cpu->set_context_mem(memory);\r
- cpu->set_context_io(io);\r
- cpu->set_context_intr(pic);\r
-#ifdef USE_DEBUGGER\r
- cpu->set_context_debugger(new DEBUGGER(this, emu));\r
-#endif\r
- \r
- // memory bus\r
- memset(ram, 0, sizeof(ram));\r
- memset(ipl, 0xff, sizeof(ipl));\r
- \r
- memory->read_bios(_T("IPL.ROM"), ipl, sizeof(ipl));\r
- \r
- memory->set_memory_rw(0x00000, 0xbffff, ram);\r
- memory->set_memory_mapped_io_rw(0xc0000, 0xdffff, crtc);\r
- memory->set_memory_r(0xf8000, 0xfffff, ipl);\r
- \r
- // i/o bus\r
- io->set_iomap_alias_rw(0x00, pic, 0);\r
- io->set_iomap_alias_rw(0x02, pic, 1);\r
-// io->set_iomap_alias_rw(0x04, dma, 0);\r
-// io->set_iomap_alias_rw(0x06, dma, 1);\r
- io->set_iomap_alias_r(0x08, fdc, 0);\r
- io->set_iomap_alias_rw(0x0a, fdc, 1);\r
- io->set_iomap_alias_rw(0x10, pio0, 0);\r
- io->set_iomap_alias_rw(0x12, pio0, 1);\r
- io->set_iomap_alias_rw(0x14, pio0, 2);\r
- io->set_iomap_alias_rw(0x16, pio0, 3);\r
- io->set_iomap_alias_rw(0x18, pio1, 0);\r
- io->set_iomap_alias_rw(0x1a, pio1, 1);\r
- io->set_iomap_alias_rw(0x1c, pio1, 2);\r
- io->set_iomap_alias_rw(0x1e, pio1, 3);\r
- io->set_iomap_single_r(0x20, ioctrl);\r
- io->set_iomap_single_rw(0x22, ioctrl);\r
- io->set_iomap_single_w(0x24, ioctrl);\r
- io->set_iomap_alias_rw(0x28, sio, 0);\r
- io->set_iomap_alias_rw(0x2a, sio, 1);\r
- io->set_iomap_single_rw(0x30, crtc);\r
- io->set_iomap_single_rw(0x38, crtc);\r
- io->set_iomap_single_rw(0x3a, crtc);\r
- io->set_iomap_single_rw(0x3c, crtc);\r
- io->set_iomap_single_rw(0x3e, crtc);\r
- for(int i = 0x40; i < 0x62; i++) {\r
- io->set_iomap_single_rw(i, crtc);\r
- }\r
- io->set_iomap_single_rw(0x80, kanji);\r
- io->set_iomap_single_rw(0x81, kanji);\r
- io->set_iomap_single_w(0x84, kanji);\r
- io->set_iomap_single_w(0x86, kanji);\r
- \r
- // initialize all devices\r
- for(DEVICE* device = first_device; device; device = device->next_device) {\r
- device->initialize();\r
- }\r
- for(int i = 0; i < 4; i++) {\r
- fdc->set_drive_type(i, DRIVE_TYPE_2D);\r
- }\r
-}\r
-\r
-VM::~VM()\r
-{\r
- // delete all devices\r
- for(DEVICE* device = first_device; device;) {\r
- DEVICE *next_device = device->next_device;\r
- device->release();\r
- delete device;\r
- device = next_device;\r
- }\r
-}\r
-\r
-DEVICE* VM::get_device(int id)\r
-{\r
- for(DEVICE* device = first_device; device; device = device->next_device) {\r
- if(device->this_device_id == id) {\r
- return device;\r
- }\r
- }\r
- return NULL;\r
-}\r
-\r
-// ----------------------------------------------------------------------------\r
-// drive virtual machine\r
-// ----------------------------------------------------------------------------\r
-\r
-void VM::reset()\r
-{\r
- // reset all devices\r
- for(DEVICE* device = first_device; device; device = device->next_device) {\r
- device->reset();\r
- }\r
-}\r
-\r
-void VM::run()\r
-{\r
- event->drive();\r
-}\r
-\r
-// ----------------------------------------------------------------------------\r
-// debugger\r
-// ----------------------------------------------------------------------------\r
-\r
-#ifdef USE_DEBUGGER\r
-DEVICE *VM::get_cpu(int index)\r
-{\r
- if(index == 0) {\r
- return cpu;\r
- }\r
- return NULL;\r
-}\r
-#endif\r
-\r
-// ----------------------------------------------------------------------------\r
-// draw screen\r
-// ----------------------------------------------------------------------------\r
-\r
-void VM::draw_screen()\r
-{\r
- crtc->draw_screen();\r
-}\r
-\r
-int VM::access_lamp()\r
-{\r
- uint32 status = fdc->read_signal(0);\r
- return (status & (1 | 4)) ? 1 : (status & (2 | 8)) ? 2 : 0;\r
-}\r
-\r
-// ----------------------------------------------------------------------------\r
-// soud manager\r
-// ----------------------------------------------------------------------------\r
-\r
-void VM::initialize_sound(int rate, int samples)\r
-{\r
- // init sound manager\r
- event->initialize_sound(rate, samples);\r
- \r
- // init sound gen\r
- beep->init(rate, 2400, 8000);\r
- pcm->init(rate, 8000);\r
-}\r
-\r
-uint16* VM::create_sound(int* extra_frames)\r
-{\r
- return event->create_sound(extra_frames);\r
-}\r
-\r
-int VM::sound_buffer_ptr()\r
-{\r
- return event->sound_buffer_ptr();\r
-}\r
-\r
-// ----------------------------------------------------------------------------\r
-// notify key\r
-// ----------------------------------------------------------------------------\r
-\r
-void VM::key_down(int code, bool repeat)\r
-{\r
- ioctrl->key_down(code);\r
-}\r
-\r
-void VM::key_up(int code)\r
-{\r
- ioctrl->key_up(code);\r
-}\r
-\r
-// ----------------------------------------------------------------------------\r
-// user interface\r
-// ----------------------------------------------------------------------------\r
-\r
-void VM::open_disk(int drv, _TCHAR* file_path, int offset)\r
-{\r
- fdc->open_disk(drv, file_path, offset);\r
-}\r
-\r
-void VM::close_disk(int drv)\r
-{\r
- fdc->close_disk(drv);\r
-}\r
-\r
-bool VM::disk_inserted(int drv)\r
-{\r
- return fdc->disk_inserted(drv);\r
-}\r
-\r
-bool VM::now_skip()\r
-{\r
- return event->now_skip();\r
-}\r
-\r
-void VM::update_config()\r
-{\r
- for(DEVICE* device = first_device; device; device = device->next_device) {\r
- device->update_config();\r
- }\r
-}\r
-\r
-#define STATE_VERSION 1\r
-\r
-void VM::save_state(FILEIO* state_fio)\r
-{\r
- state_fio->FputUint32(STATE_VERSION);\r
- \r
- for(DEVICE* device = first_device; device; device = device->next_device) {\r
- device->save_state(state_fio);\r
- }\r
- state_fio->Fwrite(ram, sizeof(ram), 1);\r
-}\r
-\r
-bool VM::load_state(FILEIO* state_fio)\r
-{\r
- if(state_fio->FgetUint32() != STATE_VERSION) {\r
- return false;\r
- }\r
- for(DEVICE* device = first_device; device; device = device->next_device) {\r
- if(!device->load_state(state_fio)) {\r
- return false;\r
- }\r
- }\r
- state_fio->Fread(ram, sizeof(ram), 1);\r
- return true;\r
-}\r
-\r
+/*
+ NEC PC-100 Emulator 'ePC-100'
+
+ Author : Takeda.Toshiya
+ Date : 2008.07.12 -
+
+ [ virtual machine ]
+*/
+
+#include "pc100.h"
+#include "../../emu.h"
+#include "../device.h"
+#include "../event.h"
+
+#include "../and.h"
+#include "../beep.h"
+#include "../disk.h"
+#include "../i8251.h"
+#include "../i8255.h"
+#include "../i8259.h"
+#include "../i286.h"
+#include "../io.h"
+#include "../memory.h"
+#include "../msm58321.h"
+#include "../pcm1bit.h"
+#include "../upd765a.h"
+
+#ifdef USE_DEBUGGER
+#include "../debugger.h"
+#endif
+
+#include "crtc.h"
+#include "ioctrl.h"
+#include "kanji.h"
+
+// ----------------------------------------------------------------------------
+// initialize
+// ----------------------------------------------------------------------------
+
+VM::VM(EMU* parent_emu) : emu(parent_emu)
+{
+ // create devices
+ first_device = last_device = NULL;
+ dummy = new DEVICE(this, emu); // must be 1st device
+ event = new EVENT(this, emu); // must be 2nd device
+#if defined(_USE_QT)
+ dummy->set_device_name(_T("1st Dummy"));
+ event->set_device_name(_T("EVENT"));
+#endif
+
+ and_drq = new AND(this, emu);
+ beep = new BEEP(this, emu);
+ sio = new I8251(this, emu);
+ pio0 = new I8255(this, emu);
+ pio1 = new I8255(this, emu);
+ pic = new I8259(this, emu);
+ cpu = new I286(this, emu);
+ io = new IO(this, emu);
+ memory = new MEMORY(this, emu);
+ rtc = new MSM58321(this, emu);
+ pcm = new PCM1BIT(this, emu);
+ fdc = new UPD765A(this, emu);
+#if defined(_USE_QT)
+ and_drq->set_device_name(_T("AND GATE(FDC DRQ)"));
+ pio0->set_device_name(_T("i8255 PIO(MSM5832 RTC)"));
+ pio1->set_device_name(_T("i8255 PIO(CRTC)"));
+ cpu->set_device_name(_T("CPU(i8086)"));
+#endif
+
+ crtc = new CRTC(this, emu);
+ ioctrl = new IOCTRL(this, emu);
+ kanji = new KANJI(this, emu);
+#if defined(_USE_QT)
+ crtc->set_device_name(_T("CRTC"));
+ ioctrl->set_device_name(_T("I/O CONTROL"));
+ kanji->set_device_name(_T("KANJI I/F"));
+#endif
+ // set contexts
+ event->set_context_cpu(cpu);
+ event->set_context_sound(beep);
+ event->set_context_sound(pcm);
+#if defined(USE_SOUND_FILES)
+ if(fdc->load_sound_data(UPD765A_SND_TYPE_SEEK, _T("FDDSEEK.WAV"))) {
+ event->set_context_sound(fdc);
+ }
+#endif
+
+ and_drq->set_context_out(cpu, SIG_CPU_NMI, 1);
+ and_drq->set_mask(SIG_AND_BIT_0 | SIG_AND_BIT_1);
+ sio->set_context_rxrdy(pic, SIG_I8259_IR1, 1);
+ pio0->set_context_port_a(rtc, SIG_MSM58321_READ, 1, 0);
+ pio0->set_context_port_a(rtc, SIG_MSM58321_WRITE, 2, 0);
+ pio0->set_context_port_a(rtc, SIG_MSM58321_ADDR_WRITE, 4, 0);
+ pio0->set_context_port_c(rtc, SIG_MSM58321_DATA, 0x0f, 0);
+ pio1->set_context_port_a(crtc, SIG_CRTC_BITMASK_LOW, 0xff, 0);
+ pio1->set_context_port_b(crtc, SIG_CRTC_BITMASK_HIGH, 0xff, 0);
+ pio1->set_context_port_c(crtc, SIG_CRTC_VRAM_PLANE, 0x3f, 0);
+ pio1->set_context_port_c(and_drq, SIG_AND_BIT_0, 0x80, 0);
+ pio1->set_context_port_c(ioctrl, SIG_IOCTRL_RESET, 0x40, 0);
+ pic->set_context_cpu(cpu);
+ rtc->set_context_data(pio0, SIG_I8255_PORT_C, 0x0f, 0);
+ rtc->set_context_busy(pio0, SIG_I8255_PORT_C, 0x10);
+ fdc->set_context_irq(cpu, SIG_CPU_NMI, 1);
+ fdc->set_context_drq(and_drq, SIG_AND_BIT_1, 1);
+
+ crtc->set_context_pic(pic);
+ ioctrl->set_context_pic(pic);
+ ioctrl->set_context_fdc(fdc);
+ ioctrl->set_context_beep(beep);
+ ioctrl->set_context_pcm(pcm);
+
+ // cpu bus
+ cpu->set_context_mem(memory);
+ cpu->set_context_io(io);
+ cpu->set_context_intr(pic);
+#ifdef USE_DEBUGGER
+ cpu->set_context_debugger(new DEBUGGER(this, emu));
+#endif
+
+ // memory bus
+ memset(ram, 0, sizeof(ram));
+ memset(ipl, 0xff, sizeof(ipl));
+
+ memory->read_bios(_T("IPL.ROM"), ipl, sizeof(ipl));
+
+ memory->set_memory_rw(0x00000, 0xbffff, ram);
+ memory->set_memory_mapped_io_rw(0xc0000, 0xdffff, crtc);
+ memory->set_memory_r(0xf8000, 0xfffff, ipl);
+
+ // i/o bus
+ io->set_iomap_alias_rw(0x00, pic, 0);
+ io->set_iomap_alias_rw(0x02, pic, 1);
+// io->set_iomap_alias_rw(0x04, dma, 0);
+// io->set_iomap_alias_rw(0x06, dma, 1);
+ io->set_iomap_alias_r(0x08, fdc, 0);
+ io->set_iomap_alias_rw(0x0a, fdc, 1);
+ io->set_iomap_alias_rw(0x10, pio0, 0);
+ io->set_iomap_alias_rw(0x12, pio0, 1);
+ io->set_iomap_alias_rw(0x14, pio0, 2);
+ io->set_iomap_alias_rw(0x16, pio0, 3);
+ io->set_iomap_alias_rw(0x18, pio1, 0);
+ io->set_iomap_alias_rw(0x1a, pio1, 1);
+ io->set_iomap_alias_rw(0x1c, pio1, 2);
+ io->set_iomap_alias_rw(0x1e, pio1, 3);
+ io->set_iomap_single_r(0x20, ioctrl);
+ io->set_iomap_single_rw(0x22, ioctrl);
+ io->set_iomap_single_w(0x24, ioctrl);
+ io->set_iomap_alias_rw(0x28, sio, 0);
+ io->set_iomap_alias_rw(0x2a, sio, 1);
+ io->set_iomap_single_rw(0x30, crtc);
+ io->set_iomap_single_rw(0x38, crtc);
+ io->set_iomap_single_rw(0x3a, crtc);
+ io->set_iomap_single_rw(0x3c, crtc);
+ io->set_iomap_single_rw(0x3e, crtc);
+ for(int i = 0x40; i < 0x62; i++) {
+ io->set_iomap_single_rw(i, crtc);
+ }
+ io->set_iomap_single_rw(0x80, kanji);
+ io->set_iomap_single_rw(0x81, kanji);
+ io->set_iomap_single_w(0x84, kanji);
+ io->set_iomap_single_w(0x86, kanji);
+
+ // initialize all devices
+ for(DEVICE* device = first_device; device; device = device->next_device) {
+ device->initialize();
+ }
+ for(int i = 0; i < 4; i++) {
+ fdc->set_drive_type(i, DRIVE_TYPE_2D);
+ }
+}
+
+VM::~VM()
+{
+ // delete all devices
+ for(DEVICE* device = first_device; device;) {
+ DEVICE *next_device = device->next_device;
+ device->release();
+ delete device;
+ device = next_device;
+ }
+}
+
+DEVICE* VM::get_device(int id)
+{
+ for(DEVICE* device = first_device; device; device = device->next_device) {
+ if(device->this_device_id == id) {
+ return device;
+ }
+ }
+ return NULL;
+}
+
+// ----------------------------------------------------------------------------
+// drive virtual machine
+// ----------------------------------------------------------------------------
+
+void VM::reset()
+{
+ // reset all devices
+ for(DEVICE* device = first_device; device; device = device->next_device) {
+ device->reset();
+ }
+}
+
+void VM::run()
+{
+ event->drive();
+}
+
+// ----------------------------------------------------------------------------
+// debugger
+// ----------------------------------------------------------------------------
+
+#ifdef USE_DEBUGGER
+DEVICE *VM::get_cpu(int index)
+{
+ if(index == 0) {
+ return cpu;
+ }
+ return NULL;
+}
+#endif
+
+// ----------------------------------------------------------------------------
+// draw screen
+// ----------------------------------------------------------------------------
+
+void VM::draw_screen()
+{
+ crtc->draw_screen();
+}
+
+uint32_t VM::get_access_lamp_status()
+{
+ uint32_t status = fdc->read_signal(0);
+ return (status & (1 | 4)) ? 1 : (status & (2 | 8)) ? 2 : 0;
+}
+
+// ----------------------------------------------------------------------------
+// soud manager
+// ----------------------------------------------------------------------------
+
+void VM::initialize_sound(int rate, int samples)
+{
+ // init sound manager
+ event->initialize_sound(rate, samples);
+
+ // init sound gen
+ beep->initialize_sound(rate, 2400, 8000);
+ pcm->initialize_sound(rate, 8000);
+}
+
+uint16_t* VM::create_sound(int* extra_frames)
+{
+ return event->create_sound(extra_frames);
+}
+
+int VM::get_sound_buffer_ptr()
+{
+ return event->get_sound_buffer_ptr();
+}
+
+#ifdef USE_SOUND_VOLUME
+void VM::set_sound_device_volume(int ch, int decibel_l, int decibel_r)
+{
+ if(ch == 0) {
+ beep->set_volume(0, decibel_l, decibel_r);
+ } else if(ch == 1) {
+ pcm->set_volume(0, decibel_l, decibel_r);
+ }
+#if defined(USE_SOUND_FILES)
+ else if(ch == 2) {
+ fdc->set_volume(0, decibel_l, decibel_r);
+ }
+#endif
+}
+#endif
+
+// ----------------------------------------------------------------------------
+// notify key
+// ----------------------------------------------------------------------------
+
+void VM::key_down(int code, bool repeat)
+{
+ ioctrl->key_down(code);
+}
+
+void VM::key_up(int code)
+{
+ ioctrl->key_up(code);
+}
+
+// ----------------------------------------------------------------------------
+// user interface
+// ----------------------------------------------------------------------------
+
+void VM::open_floppy_disk(int drv, const _TCHAR* file_path, int bank)
+{
+ fdc->open_disk(drv, file_path, bank);
+}
+
+void VM::close_floppy_disk(int drv)
+{
+ fdc->close_disk(drv);
+}
+
+bool VM::is_floppy_disk_inserted(int drv)
+{
+ return fdc->is_disk_inserted(drv);
+}
+
+void VM::is_floppy_disk_protected(int drv, bool value)
+{
+ fdc->is_disk_protected(drv, value);
+}
+
+bool VM::is_floppy_disk_protected(int drv)
+{
+ return fdc->is_disk_protected(drv);
+}
+
+bool VM::is_frame_skippable()
+{
+ return event->is_frame_skippable();
+}
+
+void VM::update_config()
+{
+ for(DEVICE* device = first_device; device; device = device->next_device) {
+ device->update_config();
+ }
+}
+
+#define STATE_VERSION 1
+
+void VM::save_state(FILEIO* state_fio)
+{
+ state_fio->FputUint32(STATE_VERSION);
+
+ for(DEVICE* device = first_device; device; device = device->next_device) {
+ device->save_state(state_fio);
+ }
+ state_fio->Fwrite(ram, sizeof(ram), 1);
+}
+
+bool VM::load_state(FILEIO* state_fio)
+{
+ if(state_fio->FgetUint32() != STATE_VERSION) {
+ return false;
+ }
+ for(DEVICE* device = first_device; device; device = device->next_device) {
+ if(!device->load_state(state_fio)) {
+ return false;
+ }
+ }
+ state_fio->Fread(ram, sizeof(ram), 1);
+ return true;
+}
+
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