2 Gijutsu-Hyoron-Sha Babbage-2nd Emulator 'eBabbage-2nd'
4 Author : Takeda.Toshiya
10 #include "babbage2nd.h"
11 #include "../../emu.h"
12 #include "../device.h"
16 #include "../memory.h"
18 #include "../z80ctc.h"
19 #include "../z80pio.h"
24 // ----------------------------------------------------------------------------
26 // ----------------------------------------------------------------------------
28 VM::VM(EMU* parent_emu) : emu(parent_emu)
31 first_device = last_device = NULL;
32 dummy = new DEVICE(this, emu); // must be 1st device
33 event = new EVENT(this, emu); // must be 2nd device
35 io = new IO(this, emu);
36 memory = new MEMORY(this, emu);
37 cpu = new Z80(this, emu);
38 ctc = new Z80CTC(this, emu);
39 pio1 = new Z80PIO(this, emu);
40 pio2 = new Z80PIO(this, emu);
42 display = new DISPLAY(this, emu);
43 keyboard = new KEYBOARD(this, emu);
46 event->set_context_cpu(cpu);
48 pio2->set_context_port_b(display, SIG_DISPLAY_7SEG_LED, 0xff, 0);
49 keyboard->set_context_pio(pio2);
51 ctc->set_context_zc2(ctc, SIG_Z80CTC_TRIG_1, 1);
52 ctc->set_context_zc1(ctc, SIG_Z80CTC_TRIG_0, 1);
54 pio1->set_context_port_b(display, SIG_DISPLAY_8BIT_LED, 0xff, 0);
55 //pio1->set_context_port_b(pio1, SIG_Z80PIO_PORT_A, 0xff, 0);
58 cpu->set_context_mem(memory);
59 cpu->set_context_io(io);
60 cpu->set_context_intr(ctc);
62 // z80 family daisy chain
63 ctc->set_context_intr(cpu, 0);
64 ctc->set_context_child(pio1);
65 pio1->set_context_intr(cpu, 1);
66 pio1->set_context_child(pio2);
67 pio2->set_context_intr(cpu, 2);
70 memset(ram, 0, sizeof(ram));
71 memset(rom, 0xff, sizeof(rom));
73 memory->read_bios(_T("MON.ROM"), rom, sizeof(rom));
75 memory->set_memory_r(0x0000, 0x07ff, rom);
76 memory->set_memory_rw(0x1000, 0x17ff, ram);
79 io->set_iomap_range_rw(0x00, 0x03, ctc);
80 io->set_iomap_range_rw(0x10, 0x13, pio1);
81 io->set_iomap_range_rw(0x20, 0x23, pio2);
83 // initialize all devices
84 for(DEVICE* device = first_device; device; device = device->next_device) {
92 for(DEVICE* device = first_device; device;) {
93 DEVICE *next_device = device->next_device;
100 DEVICE* VM::get_device(int id)
102 for(DEVICE* device = first_device; device; device = device->next_device) {
103 if(device->this_device_id == id) {
110 // ----------------------------------------------------------------------------
111 // drive virtual machine
112 // ----------------------------------------------------------------------------
117 for(DEVICE* device = first_device; device; device = device->next_device) {
127 // ----------------------------------------------------------------------------
129 // ----------------------------------------------------------------------------
131 void VM::draw_screen()
133 display->draw_screen();
136 // ----------------------------------------------------------------------------
138 // ----------------------------------------------------------------------------
140 void VM::initialize_sound(int rate, int samples)
142 // init sound manager
143 event->initialize_sound(rate, samples);
146 uint16* VM::create_sound(int* extra_frames)
148 return event->create_sound(extra_frames);
151 int VM::sound_buffer_ptr()
153 return event->sound_buffer_ptr();
156 // ----------------------------------------------------------------------------
158 // ----------------------------------------------------------------------------
160 void VM::key_down(int code, bool repeat)
162 keyboard->key_down(code);
165 void VM::key_up(int code)
167 //keyboard->key_up(code);
170 // ----------------------------------------------------------------------------
172 // ----------------------------------------------------------------------------
174 void VM::load_binary(int drv, const _TCHAR* file_path)
177 memory->read_image(file_path, ram, sizeof(ram));
181 void VM::save_binary(int drv, const _TCHAR* file_path)
184 memory->write_image(file_path, ram, sizeof(ram));
190 return event->now_skip();
193 void VM::update_config()
195 for(DEVICE* device = first_device; device; device = device->next_device) {
196 device->update_config();