2 SHARP MZ-5500 Emulator 'EmuZ-5500'
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4 Author : Takeda.Toshiya
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11 #include "../../emu.h"
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12 #include "../device.h"
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13 #include "../event.h"
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15 #include "../disk.h"
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16 #include "../i8237.h"
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17 #include "../i8255.h"
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18 #include "../i8259.h"
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19 #include "../i286.h"
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21 #include "../ls393.h"
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22 #include "../rp5c01.h"
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23 #include "../upd7220.h"
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24 #include "../upd765a.h"
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25 #include "../ym2203.h"
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26 #include "../z80ctc.h"
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27 #include "../z80sio.h"
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30 #include "../debugger.h"
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33 #include "display.h"
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34 #include "keyboard.h"
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36 #include "sysport.h"
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38 // ----------------------------------------------------------------------------
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40 // ----------------------------------------------------------------------------
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42 VM::VM(EMU* parent_emu) : emu(parent_emu)
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45 first_device = last_device = NULL;
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46 dummy = new DEVICE(this, emu); // must be 1st device
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47 event = new EVENT(this, emu); // must be 2nd device
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49 dma = new I8237(this, emu);
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50 pio = new I8255(this, emu);
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51 pic = new I8259(this, emu);
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52 cpu = new I286(this, emu);
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53 io = new IO(this, emu);
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54 div = new LS393(this, emu);
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55 rtc = new RP5C01(this, emu);
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56 gdc = new UPD7220(this, emu);
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57 fdc = new UPD765A(this, emu);
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58 psg = new YM2203(this, emu); // AY-3-8912
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59 ctc0 = new Z80CTC(this, emu);
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60 #if defined(_MZ6500) || defined(_MZ6550)
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61 ctc1 = new Z80CTC(this, emu);
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63 sio = new Z80SIO(this, emu);
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65 display = new DISPLAY(this, emu);
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66 keyboard = new KEYBOARD(this, emu);
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67 memory = new MEMORY(this, emu);
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68 sysport = new SYSPORT(this, emu);
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71 event->set_context_cpu(cpu);
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72 event->set_context_sound(psg);
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74 dma->set_context_memory(memory);
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75 dma->set_context_ch1(fdc);
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76 pio->set_context_port_c(keyboard, SIG_KEYBOARD_INPUT, 3, 0);
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77 pic->set_context_cpu(cpu);
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78 div->set_context_2qb(ctc0, SIG_Z80CTC_TRIG_3, 1);
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79 #if defined(_MZ6500) || defined(_MZ6550)
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80 div->set_context_1qb(ctc1, SIG_Z80CTC_TRIG_0, 1);
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81 div->set_context_2qb(ctc1, SIG_Z80CTC_TRIG_1, 1);
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82 div->set_context_2qb(ctc1, SIG_Z80CTC_TRIG_2, 1);
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83 div->set_context_2qd(ctc1, SIG_Z80CTC_TRIG_3, 1);
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85 rtc->set_context_alarm(pic, SIG_I8259_IR0 | SIG_I8259_CHIP1, 1);
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86 gdc->set_vram_ptr(memory->get_vram(), 0x80000);
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87 gdc->set_context_vsync(pic, SIG_I8259_IR0 | SIG_I8259_CHIP0, 1);
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88 fdc->set_context_irq(pic, SIG_I8259_IR1 | SIG_I8259_CHIP1, 1);
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89 fdc->set_context_drq(dma, SIG_I8237_CH1, 1);
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90 psg->set_context_port_a(pic, SIG_I8259_IR7 | SIG_I8259_CHIP0, 0x20, 0);
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91 psg->set_context_port_a(pic, SIG_I8259_IR7 | SIG_I8259_CHIP1, 0x40, 0);
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92 psg->set_context_port_a(memory, SIG_MEMORY_BANK, 0xe0, 0);
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93 ctc0->set_context_intr(pic, SIG_I8259_IR5 | SIG_I8259_CHIP0);
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94 ctc0->set_context_zc0(div, SIG_LS393_CLK, 1);
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95 ctc0->set_context_zc1(sio, SIG_Z80SIO_TX_CLK_CH0, 1);
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96 ctc0->set_context_zc1(sio, SIG_Z80SIO_RX_CLK_CH0, 1);
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97 ctc0->set_context_zc2(sio, SIG_Z80SIO_TX_CLK_CH1, 1);
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98 ctc0->set_context_zc2(sio, SIG_Z80SIO_RX_CLK_CH1, 1);
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99 #if defined(_MZ6500) || defined(_MZ6550)
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100 ctc0->set_context_child(ctc1);
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101 ctc1->set_context_intr(pic, SIG_I8259_IR5 | SIG_I8259_CHIP0);
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103 sio->set_context_intr(pic, SIG_I8259_IR1 | SIG_I8259_CHIP0);
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105 display->set_vram_ptr(memory->get_vram());
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106 display->set_sync_ptr(gdc->get_sync());
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107 display->set_ra_ptr(gdc->get_ra());
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108 display->set_cs_ptr(gdc->get_cs());
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109 display->set_ead_ptr(gdc->get_ead());
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110 keyboard->set_context_pio(pio);
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111 keyboard->set_context_pic(pic);
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112 memory->set_context_cpu(cpu);
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113 sysport->set_context_fdc(fdc);
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114 sysport->set_context_ctc(ctc0);
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115 sysport->set_context_sio(sio);
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118 cpu->set_context_mem(memory);
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119 cpu->set_context_io(io);
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120 cpu->set_context_intr(pic);
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121 #ifdef SINGLE_MODE_DMA
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122 cpu->set_context_dma(dma);
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124 #ifdef USE_DEBUGGER
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125 cpu->set_context_debugger(new DEBUGGER(this, emu));
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129 io->set_iomap_range_rw(0x00, 0x0f, dma);
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130 io->set_iomap_range_rw(0x10, 0x1f, pio);
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131 io->set_iomap_range_rw(0x20, 0x2f, fdc);
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132 for(int i = 0x30; i < 0x40; i += 2) {
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133 io->set_iomap_alias_rw(i, pic, I8259_ADDR_CHIP0 | ((i >> 1) & 1));
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135 for(int i = 0x40; i < 0x50; i += 2) {
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136 io->set_iomap_alias_rw(i, pic, I8259_ADDR_CHIP1 | ((i >> 1) & 1));
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138 io->set_iomap_range_w(0x50, 0x5f, memory);
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139 io->set_iomap_range_r(0x60, 0x6f, sysport);
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140 io->set_iomap_range_w(0x70, 0x7f, sysport);
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141 #if defined(_MZ6500) || defined(_MZ6550)
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142 io->set_iomap_single_rw(0xcd, memory);
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144 for(int i = 0x100; i < 0x110; i += 2) {
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145 io->set_iomap_alias_rw(i, gdc, (i >> 1) & 1);
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147 io->set_iomap_range_rw(0x110, 0x17f, display);
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148 io->set_iomap_range_rw(0x200, 0x20f, sio);
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149 io->set_iomap_range_rw(0x210, 0x21f, ctc0);
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150 io->set_iomap_range_rw(0x220, 0x22f, rtc);
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151 for(int i = 0x230; i < 0x240; i++) {
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152 io->set_iomap_alias_rw(i, psg, ~i & 1);
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154 io->set_iomap_range_r(0x240, 0x25f, sysport);
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155 io->set_iomap_range_w(0x260, 0x26f, sysport);
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156 io->set_iomap_range_r(0x270, 0x27f, sysport);
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158 // initialize all devices
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159 for(DEVICE* device = first_device; device; device = device->next_device) {
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160 device->initialize();
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162 for(int i = 0; i < 4; i++) {
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163 #if defined(_MZ6500) || defined(_MZ6550)
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164 fdc->set_drive_type(i, DRIVE_TYPE_2HD);
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166 fdc->set_drive_type(i, DRIVE_TYPE_2D);
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173 // delete all devices
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174 for(DEVICE* device = first_device; device;) {
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175 DEVICE *next_device = device->next_device;
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178 device = next_device;
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182 DEVICE* VM::get_device(int id)
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184 for(DEVICE* device = first_device; device; device = device->next_device) {
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185 if(device->this_device_id == id) {
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192 // ----------------------------------------------------------------------------
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193 // drive virtual machine
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194 // ----------------------------------------------------------------------------
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198 // reset all devices
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199 for(DEVICE* device = first_device; device; device = device->next_device) {
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204 void VM::special_reset()
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207 cpu->write_signal(SIG_CPU_NMI, 1, 1);
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208 sysport->nmi_reset();
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216 double VM::frame_rate()
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218 return event->frame_rate();
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221 // ----------------------------------------------------------------------------
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223 // ----------------------------------------------------------------------------
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225 #ifdef USE_DEBUGGER
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226 DEVICE *VM::get_cpu(int index)
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235 // ----------------------------------------------------------------------------
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237 // ----------------------------------------------------------------------------
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239 void VM::draw_screen()
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241 display->draw_screen();
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244 int VM::access_lamp()
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246 uint32 status = fdc->read_signal(0);
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247 return (status & (1 | 4)) ? 1 : (status & (2 | 8)) ? 2 : 0;
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250 // ----------------------------------------------------------------------------
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252 // ----------------------------------------------------------------------------
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254 void VM::initialize_sound(int rate, int samples)
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256 // init sound manager
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257 event->initialize_sound(rate, samples);
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260 psg->init(rate, 4000000, samples, 0, 0);
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263 uint16* VM::create_sound(int* extra_frames)
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265 return event->create_sound(extra_frames);
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268 int VM::sound_buffer_ptr()
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270 return event->sound_buffer_ptr();
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273 // ----------------------------------------------------------------------------
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275 // ----------------------------------------------------------------------------
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277 void VM::key_down(int code, bool repeat)
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279 keyboard->key_down(code);
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282 void VM::key_up(int code)
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284 // keyboard->key_up(code);
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287 // ----------------------------------------------------------------------------
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289 // ----------------------------------------------------------------------------
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291 void VM::open_disk(int drv, _TCHAR* file_path, int offset)
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293 fdc->open_disk(drv, file_path, offset);
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296 void VM::close_disk(int drv)
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298 fdc->close_disk(drv);
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301 bool VM::disk_inserted(int drv)
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303 return fdc->disk_inserted(drv);
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306 bool VM::now_skip()
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308 return event->now_skip();
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311 void VM::update_config()
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313 for(DEVICE* device = first_device; device; device = device->next_device) {
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314 device->update_config();
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