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author stephh <stephh@users.noreply.github.com>2012-04-03 23:33:08 +0000
committer stephh <stephh@users.noreply.github.com>2012-04-03 23:33:08 +0000
commitca9d78932f30f2b3c4dc18e3ef68d6e9ab0ba700 (patch)
tree5aabe79cd7a7e25bd53a502a44316efc24009dad
parent7acfdb031a7b2bcb1e43a2477e2de986c8428b43 (diff)
Remove unnecessary notes (nw)
-rw-r--r--src/mame/drivers/mirax.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/src/mame/drivers/mirax.c b/src/mame/drivers/mirax.c
index c05c9bcfc0c..cf28da649de 100644
--- a/src/mame/drivers/mirax.c
+++ b/src/mame/drivers/mirax.c
@@ -96,9 +96,6 @@ Stephh's notes (based on the games Z80 code and some tests) :
- Same ingame bug as in 'mirax' when you reach level 100 (of course, it will display
"LUXORI UNIT" instead of "MIRAX CITY" on "presentation" screen).
-MIRAX / RUTHIN / GORGAN / PEMBAY / URMIA / VENLO / OHRE / DESBOM / XELUN / MURBO
-LUXORI / " / " / " / " / " / " / DESCOM / " / "
-
************************************************
*/
>134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553
// license:LGPL-2.1+
// copyright-holders:Angelo Salese
/************************************************************************************************

    Sharp X1Twin = Sharp X1 + NEC PC Engine All-in-One

    Both systems doesn't interact at all, according to info on the net they just shares the
    same "house". It doesn't even do super-imposing, not even with the in-built X1 feature apparently

    TODO:
    - Find 100% trusted info about it.
    - inherit pce_state into x1twin_state
    - Needs video mods

************************************************************************************************/

#include "emu.h"
#include "includes/x1.h"
#include "includes/pce.h"

#include "rendlay.h"
#include "screen.h"
#include "softlist.h"
#include "speaker.h"


class x1twin_state : public x1_state
{
public:
	x1twin_state(const machine_config &mconfig, device_type type, const char *tag)
		: x1_state(mconfig, type, tag)
	{ }

	void x1twin(machine_config &config);

	DECLARE_INPUT_CHANGED_MEMBER(ipl_reset);
	DECLARE_INPUT_CHANGED_MEMBER(nmi_reset);

private:
	uint32_t screen_update_x1pce(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
	void pce_io(address_map &map);
	void pce_mem(address_map &map);
	void x1_io(address_map &map);
	void x1_mem(address_map &map);
};


#define X1_MAIN_CLOCK 16_MHz_XTAL
#define VDP_CLOCK  42.954545_MHz_XTAL
#define MCU_CLOCK  6_MHz_XTAL
#define PCE_MAIN_CLOCK      VDP_CLOCK / 2

uint32_t x1twin_state::screen_update_x1pce(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
	return 0;
}

void x1twin_state::x1_mem(address_map &map)
{
	map.unmap_value_high();
	map(0x0000, 0xffff).rw(FUNC(x1twin_state::x1_mem_r), FUNC(x1twin_state::x1_mem_w));
}

void x1twin_state::x1_io(address_map &map)
{
	map.unmap_value_high();
	map(0x0000, 0xffff).m(m_iobank, FUNC(address_map_bank_device::amap8));
}

#if 0
void x1twin_state::pce_mem(address_map &map)
{
	map(0x000000, 0x09FFFF).rom();
	map(0x1F0000, 0x1F1FFF).ram().mirror(0x6000);
	map(0x1FE000, 0x1FE3FF).rw(FUNC(x1twin_state::vdc_r), FUNC(x1twin_state::vdc_w));
	map(0x1FE400, 0x1FE7FF).rw(FUNC(x1twin_state::vce_r), FUNC(x1twin_state::vce_w));
}

void x1twin_state::pce_io(address_map &map)
{
	map(0x00, 0x03).rw(FUNC(x1twin_state::vdc_r), FUNC(x1twin_state::vdc_w));
}
#endif

/*************************************
 *
 *  Inputs
 *
 *************************************/

INPUT_CHANGED_MEMBER(x1twin_state::ipl_reset)
{
	//address_space &space = m_maincpu->space(AS_PROGRAM);

	m_maincpu->set_input_line(INPUT_LINE_RESET, newval ? CLEAR_LINE : ASSERT_LINE);

	m_ram_bank = 0x00;
	if(m_is_turbo) { m_ex_bank = 0x10; }
	//anything else?
}

/* Apparently most games doesn't support this (not even the Konami ones!), one that does is...177 :o */
INPUT_CHANGED_MEMBER(x1twin_state::nmi_reset)
{
	m_maincpu->set_input_line(INPUT_LINE_NMI, newval ? CLEAR_LINE : ASSERT_LINE);
}

INPUT_PORTS_START( x1twin )
	PORT_START("FP_SYS") //front panel buttons, hard-wired with the soft reset/NMI lines
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CHANGED_MEMBER(DEVICE_SELF, x1twin_state, ipl_reset,0) PORT_NAME("IPL reset")
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_OTHER ) PORT_CHANGED_MEMBER(DEVICE_SELF, x1twin_state, nmi_reset,0) PORT_NAME("NMI reset")

	PORT_START("SOUND_SW") //FIXME: this is X1Turbo specific
	PORT_DIPNAME( 0x80, 0x80, "OPM Sound Setting?" )
	PORT_DIPSETTING(    0x80, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )

	PORT_START("IOSYS") //TODO: implement front-panel DIP-SW here
	PORT_DIPNAME( 0x01, 0x01, "IOSYS" )
	PORT_DIPSETTING(    0x01, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x02, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x04, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x08, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x10, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x20, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) )
	PORT_DIPSETTING(    0x40, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
	PORT_DIPNAME( 0x80, 0x80, "Sound Setting?" )
	PORT_DIPSETTING(    0x80, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )

	PORT_START("P1")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON1 )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON2 )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )

	PORT_START("P2")
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(2)
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(2)
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(2)
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(2)
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2)
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2)
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )

	PORT_START("key1") //0x00-0x1f
	PORT_BIT(0x00000001,IP_ACTIVE_HIGH,IPT_UNUSED) //0x00 null
	PORT_BIT(0x00000002,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("0-2") /*PORT_CODE(KEYCODE_1) PORT_CHAR('1')*/
	PORT_BIT(0x00000004,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("0-3") /*PORT_CODE(KEYCODE_2) PORT_CHAR('2')*/
	PORT_BIT(0x00000008,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("0-4") /*PORT_CODE(KEYCODE_3) PORT_CHAR('3')*/
	PORT_BIT(0x00000010,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("0-5") /*PORT_CODE(KEYCODE_4) PORT_CHAR('4')*/
	PORT_BIT(0x00000020,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("0-6") /*PORT_CODE(KEYCODE_5) PORT_CHAR('5')*/
	PORT_BIT(0x00000040,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("0-7") /*PORT_CODE(KEYCODE_6) PORT_CHAR('6')*/
	PORT_BIT(0x00000080,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("0-8") /*PORT_CODE(KEYCODE_7) PORT_CHAR('7')*/
	PORT_BIT(0x00000100,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Backspace") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8)
	PORT_BIT(0x00000200,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tab") PORT_CODE(KEYCODE_TAB) PORT_CHAR(9)
	PORT_BIT(0x00000400,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("1-3") /*PORT_CODE(KEYCODE_2) PORT_CHAR('2')*/
	PORT_BIT(0x00000800,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("1-4") /*PORT_CODE(KEYCODE_3) PORT_CHAR('3')*/
	PORT_BIT(0x00001000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("1-5") /*PORT_CODE(KEYCODE_4) PORT_CHAR('4')*/
	PORT_BIT(0x00002000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("RETURN") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(27)
	PORT_BIT(0x00004000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("1-7") /*PORT_CODE(KEYCODE_4) PORT_CHAR('4')*/
	PORT_BIT(0x00008000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("1-8") /*PORT_CODE(KEYCODE_4) PORT_CHAR('4')*/
	PORT_BIT(0x00010000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("2-1") /*PORT_CODE(KEYCODE_1) PORT_CHAR('1')*/
	PORT_BIT(0x00020000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("2-2") /*PORT_CODE(KEYCODE_1) PORT_CHAR('1')*/
	PORT_BIT(0x00040000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("2-3") /*PORT_CODE(KEYCODE_2) PORT_CHAR('2')*/
	PORT_BIT(0x00080000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("2-4") /*PORT_CODE(KEYCODE_3) PORT_CHAR('3')*/
	PORT_BIT(0x00100000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("2-5") /*PORT_CODE(KEYCODE_4) PORT_CHAR('4')*/
	PORT_BIT(0x00200000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("2-6") /*PORT_CODE(KEYCODE_5) PORT_CHAR('5')*/
	PORT_BIT(0x00400000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("2-7") /*PORT_CODE(KEYCODE_4) PORT_CHAR('4')*/
	PORT_BIT(0x00800000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("2-8") /*PORT_CODE(KEYCODE_5) PORT_CHAR('5')*/
	PORT_BIT(0x01000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("3-1") /*PORT_CODE(KEYCODE_1) PORT_CHAR('1')*/
	PORT_BIT(0x02000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("3-2") /*PORT_CODE(KEYCODE_1) PORT_CHAR('1')*/
	PORT_BIT(0x04000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("3-3") /*PORT_CODE(KEYCODE_2) PORT_CHAR('2')*/
	PORT_BIT(0x08000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("ESC") PORT_CODE(KEYCODE_ESC) PORT_CHAR(27)
	PORT_BIT(0x10000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Right") PORT_CODE(KEYCODE_RIGHT)
	PORT_BIT(0x20000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Left") PORT_CODE(KEYCODE_LEFT)
	PORT_BIT(0x40000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Up") PORT_CODE(KEYCODE_UP)
	PORT_BIT(0x80000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Down") PORT_CODE(KEYCODE_DOWN)

	PORT_START("key2") //0x20-0x3f
	PORT_BIT(0x00000001,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Space") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
	PORT_BIT(0x00000002,IP_ACTIVE_HIGH,IPT_UNUSED) //0x21 !
	PORT_BIT(0x00000004,IP_ACTIVE_HIGH,IPT_UNUSED) //0x22 "
	PORT_BIT(0x00000008,IP_ACTIVE_HIGH,IPT_UNUSED) //0x23 #
	PORT_BIT(0x00000010,IP_ACTIVE_HIGH,IPT_UNUSED) //0x24 $
	PORT_BIT(0x00000020,IP_ACTIVE_HIGH,IPT_UNUSED) //0x25 %
	PORT_BIT(0x00000040,IP_ACTIVE_HIGH,IPT_UNUSED) //0x26 &
	PORT_BIT(0x00000080,IP_ACTIVE_HIGH,IPT_UNUSED) //0x27 '
	PORT_BIT(0x00000100,IP_ACTIVE_HIGH,IPT_UNUSED) //0x28 (
	PORT_BIT(0x00000200,IP_ACTIVE_HIGH,IPT_UNUSED) //0x29 )
	PORT_BIT(0x00000400,IP_ACTIVE_HIGH,IPT_UNUSED) //0x2a *
	PORT_BIT(0x00000800,IP_ACTIVE_HIGH,IPT_UNUSED) //0x2b +
	PORT_BIT(0x00001000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x2c ,
	PORT_BIT(0x00002000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("-") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-')
	PORT_BIT(0x00004000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x2e .
	PORT_BIT(0x00008000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x2f /

	PORT_BIT(0x00010000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0')
	PORT_BIT(0x00020000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CHAR('1')
	PORT_BIT(0x00040000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CHAR('2')
	PORT_BIT(0x00080000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CHAR('3')
	PORT_BIT(0x00100000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CHAR('4')
	PORT_BIT(0x00200000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CHAR('5')
	PORT_BIT(0x00400000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CHAR('6')
	PORT_BIT(0x00800000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CHAR('7')
	PORT_BIT(0x01000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CHAR('8')
	PORT_BIT(0x02000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CHAR('9')
	PORT_BIT(0x04000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME(":") PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(':')
	PORT_BIT(0x08000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME(";") PORT_CODE(KEYCODE_COLON) PORT_CHAR(';')
	PORT_BIT(0x10000000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x3c <
	PORT_BIT(0x20000000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x3d =
	PORT_BIT(0x40000000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x3e >
	PORT_BIT(0x80000000,IP_ACTIVE_HIGH,IPT_UNUSED) //0x3f ?

	PORT_START("key3") //0x40-0x5f
	PORT_BIT(0x00000001,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("@") PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('@')
	PORT_BIT(0x00000002,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('A')
	PORT_BIT(0x00000004,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('B')
	PORT_BIT(0x00000008,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('C')
	PORT_BIT(0x00000010,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('D')
	PORT_BIT(0x00000020,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('E')
	PORT_BIT(0x00000040,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('F')
	PORT_BIT(0x00000080,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("G") PORT_CODE(KEYCODE_G) PORT_CHAR('G')
	PORT_BIT(0x00000100,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("H") PORT_CODE(KEYCODE_H) PORT_CHAR('H')
	PORT_BIT(0x00000200,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("I") PORT_CODE(KEYCODE_I) PORT_CHAR('I')
	PORT_BIT(0x00000400,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("J") PORT_CODE(KEYCODE_J) PORT_CHAR('J')
	PORT_BIT(0x00000800,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("K") PORT_CODE(KEYCODE_K) PORT_CHAR('K')
	PORT_BIT(0x00001000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_CHAR('L')
	PORT_BIT(0x00002000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("M") PORT_CODE(KEYCODE_M) PORT_CHAR('M')
	PORT_BIT(0x00004000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("N") PORT_CODE(KEYCODE_N) PORT_CHAR('N')
	PORT_BIT(0x00008000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("O") PORT_CODE(KEYCODE_O) PORT_CHAR('O')
	PORT_BIT(0x00010000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("P") PORT_CODE(KEYCODE_P) PORT_CHAR('P')
	PORT_BIT(0x00020000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q) PORT_CHAR('Q')
	PORT_BIT(0x00040000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("R") PORT_CODE(KEYCODE_R) PORT_CHAR('R')
	PORT_BIT(0x00080000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S) PORT_CHAR('S')
	PORT_BIT(0x00100000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("T") PORT_CODE(KEYCODE_T) PORT_CHAR('T')
	PORT_BIT(0x00200000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("U") PORT_CODE(KEYCODE_U) PORT_CHAR('U')
	PORT_BIT(0x00400000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("V") PORT_CODE(KEYCODE_V) PORT_CHAR('V')
	PORT_BIT(0x00800000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("W") PORT_CODE(KEYCODE_W) PORT_CHAR('W')
	PORT_BIT(0x01000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("X") PORT_CODE(KEYCODE_X) PORT_CHAR('X')
	PORT_BIT(0x02000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Y") PORT_CODE(KEYCODE_Y) PORT_CHAR('Y')
	PORT_BIT(0x04000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z) PORT_CHAR('Z')
	PORT_BIT(0x08000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("[") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('[')
	PORT_BIT(0x10000000,IP_ACTIVE_HIGH,IPT_UNUSED)
	PORT_BIT(0x20000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("]") PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR(']')
	PORT_BIT(0x40000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("^") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('^')
	PORT_BIT(0x80000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("_")

	PORT_START("f_keys")
	PORT_BIT(0x00000001,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("F1") PORT_CODE(KEYCODE_F1)
	PORT_BIT(0x00000002,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("F2") PORT_CODE(KEYCODE_F2)
	PORT_BIT(0x00000004,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("F3") PORT_CODE(KEYCODE_F3)
	PORT_BIT(0x00000008,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("F4") PORT_CODE(KEYCODE_F4)
	PORT_BIT(0x00000010,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("F5") PORT_CODE(KEYCODE_F5)

	PORT_START("tenkey")
	PORT_BIT(0x00000001,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey 0") PORT_CODE(KEYCODE_0_PAD)
	PORT_BIT(0x00000002,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey 1") PORT_CODE(KEYCODE_1_PAD)
	PORT_BIT(0x00000004,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey 2") PORT_CODE(KEYCODE_2_PAD)
	PORT_BIT(0x00000008,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey 3") PORT_CODE(KEYCODE_3_PAD)
	PORT_BIT(0x00000010,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey 4") PORT_CODE(KEYCODE_4_PAD)
	PORT_BIT(0x00000020,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey 5") PORT_CODE(KEYCODE_5_PAD)
	PORT_BIT(0x00000040,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey 6") PORT_CODE(KEYCODE_6_PAD)
	PORT_BIT(0x00000080,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey 7") PORT_CODE(KEYCODE_7_PAD)
	PORT_BIT(0x00000100,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey 8") PORT_CODE(KEYCODE_8_PAD)
	PORT_BIT(0x00000200,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey 9") PORT_CODE(KEYCODE_9_PAD)
	PORT_BIT(0x00000400,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey -") PORT_CODE(KEYCODE_MINUS_PAD)
	PORT_BIT(0x00000800,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey +") PORT_CODE(KEYCODE_PLUS_PAD)
	PORT_BIT(0x00001000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey *") PORT_CODE(KEYCODE_ASTERISK)
	// TODO: add other numpad keys

	PORT_START("key_modifiers")
	PORT_BIT(0x00000001,IP_ACTIVE_LOW,IPT_KEYBOARD) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LCONTROL)
	PORT_BIT(0x00000002,IP_ACTIVE_LOW,IPT_KEYBOARD) PORT_NAME("SHIFT") PORT_CODE(KEYCODE_LSHIFT)
	PORT_BIT(0x00000004,IP_ACTIVE_LOW,IPT_KEYBOARD) PORT_NAME("KANA") PORT_CODE(KEYCODE_RCONTROL)
	PORT_BIT(0x00000008,IP_ACTIVE_LOW,IPT_KEYBOARD) PORT_NAME("CAPS") PORT_CODE(KEYCODE_CAPSLOCK) PORT_TOGGLE
	PORT_BIT(0x00000010,IP_ACTIVE_LOW,IPT_KEYBOARD) PORT_NAME("GRPH") PORT_CODE(KEYCODE_LALT)

#if 0
	PORT_BIT(0x00020000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME(",") PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',')
	PORT_BIT(0x00040000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME(".") PORT_CODE(KEYCODE_STOP) PORT_CHAR('.')
	PORT_BIT(0x00080000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("/") PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/')
	PORT_BIT(0x00400000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey *") PORT_CODE(KEYCODE_ASTERISK)
	PORT_BIT(0x00800000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey /") PORT_CODE(KEYCODE_SLASH_PAD)
	PORT_BIT(0x01000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey +") PORT_CODE(KEYCODE_PLUS_PAD)
	PORT_BIT(0x02000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey -") PORT_CODE(KEYCODE_MINUS_PAD)
	PORT_BIT(0x04000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey 7") PORT_CODE(KEYCODE_7_PAD)
	PORT_BIT(0x08000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey 8") PORT_CODE(KEYCODE_8_PAD)
	PORT_BIT(0x10000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey 9") PORT_CODE(KEYCODE_9_PAD)
	PORT_BIT(0x20000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey =")
	PORT_BIT(0x40000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey 4") PORT_CODE(KEYCODE_4_PAD)
	PORT_BIT(0x80000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey 5") PORT_CODE(KEYCODE_5_PAD)
	PORT_BIT(0x10000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("\xEF\xBF\xA5")

	PORT_START("key3")
	PORT_BIT(0x00000001,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey 6") PORT_CODE(KEYCODE_6_PAD)
	PORT_BIT(0x00000002,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey ,")
	PORT_BIT(0x00000004,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey 1") PORT_CODE(KEYCODE_1_PAD)
	PORT_BIT(0x00000008,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey 2") PORT_CODE(KEYCODE_2_PAD)
	PORT_BIT(0x00000010,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey 3") PORT_CODE(KEYCODE_3_PAD)
	PORT_BIT(0x00000020,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey Enter") PORT_CODE(KEYCODE_ENTER_PAD)
	PORT_BIT(0x00000040,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey 0") PORT_CODE(KEYCODE_0_PAD)
	PORT_BIT(0x00000080,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Tenkey .") PORT_CODE(KEYCODE_DEL_PAD)
	PORT_BIT(0x00000100,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("INS") PORT_CODE(KEYCODE_INSERT)
	PORT_BIT(0x00000200,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("EL") PORT_CODE(KEYCODE_PGUP)
	PORT_BIT(0x00000400,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("CLS") PORT_CODE(KEYCODE_PGDN)
	PORT_BIT(0x00000800,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("DEL") PORT_CODE(KEYCODE_DEL)
	PORT_BIT(0x00001000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("DUP") PORT_CODE(KEYCODE_END)
	PORT_BIT(0x00002000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Up") PORT_CODE(KEYCODE_UP)
	PORT_BIT(0x00004000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("HOME") PORT_CODE(KEYCODE_HOME)
	PORT_BIT(0x00008000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Left") PORT_CODE(KEYCODE_LEFT)
	PORT_BIT(0x00010000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Down") PORT_CODE(KEYCODE_DOWN)
	PORT_BIT(0x00020000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Right") PORT_CODE(KEYCODE_RIGHT)
	PORT_BIT(0x00040000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("BREAK") PORT_CODE(KEYCODE_ESC)
	PORT_BIT(0x01000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("PF6") PORT_CODE(KEYCODE_F6)
	PORT_BIT(0x02000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("PF7") PORT_CODE(KEYCODE_F7)
	PORT_BIT(0x04000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("PF8") PORT_CODE(KEYCODE_F8)
	PORT_BIT(0x08000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("PF9") PORT_CODE(KEYCODE_F9)
	PORT_BIT(0x10000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("PF10") PORT_CODE(KEYCODE_F10)

#endif
INPUT_PORTS_END


/*************************************
 *
 *  GFX decoding
 *
 *************************************/

static const gfx_layout x1_chars_8x8 =
{
	8,8,
	RGN_FRAC(1,1),
	1,
	{ 0 },
	{ 0, 1, 2, 3, 4, 5, 6, 7 },
	{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
	8*8
};

static const gfx_layout x1_chars_8x16 =
{
	8,16,
	RGN_FRAC(1,1),
	1,
	{ 0 },
	{ 0, 1, 2, 3, 4, 5, 6, 7 },
	{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8,8*8,9*8,10*8,11*8,12*8,13*8,14*8,15*8 },
	8*16
};

static const gfx_layout x1_pcg_8x8 =
{
	8,8,
	RGN_FRAC(1,3),
	3,
	{ RGN_FRAC(2,3),RGN_FRAC(1,3),RGN_FRAC(0,3) },
	{ 0, 1, 2, 3, 4, 5, 6, 7 },
	{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
	8*8
};

static const gfx_layout x1_chars_16x16 =
{
	8,16,
	RGN_FRAC(1,1),
	1,
	{ 0 },
	{ 0, 1, 2, 3, 4, 5, 6, 7 },
	{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8,8*8, 9*8, 10*8, 11*8, 12*8, 13*8, 14*8, 15*8 },
	8*16
};

/* decoded for debugging purpose, this will be nuked in the end... */
static GFXDECODE_START( gfx_x1 )
	GFXDECODE_ENTRY( "cgrom",   0x00000, x1_chars_8x8,    0, 1 )
	GFXDECODE_ENTRY( "pcg",     0x00000, x1_pcg_8x8,      0, 1 )
	GFXDECODE_ENTRY( "font",    0x00000, x1_chars_8x16,   0, 1 )
	GFXDECODE_ENTRY( "kanji",   0x00000, x1_chars_16x16,  0, 1 )
GFXDECODE_END

static const z80_daisy_config x1_daisy[] =
{
	{ "x1kb" },
	{ "ctc" },
	{ nullptr }
};

static void x1_floppies(device_slot_interface &device)
{
	device.option_add("dd", FLOPPY_525_DD);
}

MACHINE_CONFIG_START(x1twin_state::x1twin)
	/* basic machine hardware */
	Z80(config, m_maincpu, X1_MAIN_CLOCK/4);
	m_maincpu->set_addrmap(AS_PROGRAM, &x1twin_state::x1_mem);
	m_maincpu->set_addrmap(AS_IO, &x1twin_state::x1_io);
	m_maincpu->set_daisy_config(x1_daisy);

	ADDRESS_MAP_BANK(config, "iobank").set_map(&x1_state::x1_io_banks).set_options(ENDIANNESS_LITTLE, 8, 17, 0x10000);

	MCFG_DEVICE_ADD("ctc", Z80CTC, MAIN_CLOCK/4)
	MCFG_Z80CTC_INTR_CB(INPUTLINE("x1_cpu", INPUT_LINE_IRQ0))
	MCFG_Z80CTC_ZC0_CB(WRITELINE("ctc", z80ctc_device, trg3))
	MCFG_Z80CTC_ZC1_CB(WRITELINE("ctc", z80ctc_device, trg1))
	MCFG_Z80CTC_ZC2_CB(WRITELINE("ctc", z80ctc_device, trg2))

	MCFG_DEVICE_ADD("x1kb", X1_KEYBOARD, 0)

	MCFG_DEVICE_ADD("ppi8255_0", I8255A, 0)
	MCFG_I8255_IN_PORTA_CB(READ8(*this, x1_state, x1_porta_r))
	MCFG_I8255_OUT_PORTA_CB(WRITE8(*this, x1_state, x1_porta_w))
	MCFG_I8255_IN_PORTB_CB(READ8(*this, x1_state, x1_portb_r))
	MCFG_I8255_OUT_PORTB_CB(WRITE8(*this, x1_state, x1_portb_w))
	MCFG_I8255_IN_PORTC_CB(READ8(*this, x1_state, x1_portc_r))
	MCFG_I8255_OUT_PORTC_CB(WRITE8(*this, x1_state, x1_portc_w))

	MCFG_MACHINE_START_OVERRIDE(x1twin_state,x1)
	MCFG_MACHINE_RESET_OVERRIDE(x1twin_state,x1)

	#if 0
	H6280(config, m_maincpu, PCE_MAIN_CLOCK/3);
	m_maincpu->set_addrmap(AS_PROGRAM, pce_mem);
	m_maincpu->set_addrmap(AS_IO, pce_io);
	m_maincpu->port_in_cb().set(FUNC(x1twin_state::pce_joystick_r));
	m_maincpu->port_out_cb().set(FUNC(x1twin_state::pce_joystick_w));
	m_maincpu->add_route(0, "pce_l", 0.5);
	m_maincpu->add_route(1, "pce_r", 0.5);

	MCFG_TIMER_ADD_SCANLINE("scantimer", pce_interrupt, "pce_screen", 0, 1)
	#endif

	config.set_default_layout(layout_dualhsxs);
	/* video hardware */
	MCFG_SCREEN_ADD("screen", RASTER)
	MCFG_SCREEN_REFRESH_RATE(60)
	MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */
	MCFG_SCREEN_SIZE(640, 480)
	MCFG_SCREEN_VISIBLE_AREA(0, 640-1, 0, 480-1)
	MCFG_SCREEN_UPDATE_DRIVER(x1twin_state, screen_update_x1)

	MCFG_SCREEN_ADD("pce_screen", RASTER)
	MCFG_SCREEN_REFRESH_RATE(60)
	MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */
	MCFG_SCREEN_RAW_PARAMS(PCE_MAIN_CLOCK/2, huc6260_device::WPF, 70, 70 + 512 + 32, huc6260_device::LPF, 14, 14+242)
	MCFG_SCREEN_UPDATE_DRIVER(x1twin_state, screen_update_x1pce)

	MCFG_MC6845_ADD("crtc", H46505, "screen", (VDP_CLOCK/48)) //unknown divider
	MCFG_MC6845_SHOW_BORDER_AREA(true)
	MCFG_MC6845_CHAR_WIDTH(8)

	MCFG_PALETTE_ADD("palette", 0x10+0x1000)
	MCFG_PALETTE_INIT_OWNER(x1twin_state,x1)

	MCFG_DEVICE_ADD("gfxdecode", GFXDECODE, "palette", gfx_x1)

	MCFG_VIDEO_START_OVERRIDE(x1twin_state,x1)

	MCFG_DEVICE_ADD("fdc", MB8877, MAIN_CLOCK / 16)
	// TODO: guesswork, try to implicitily start the motor
	MCFG_WD_FDC_HLD_CALLBACK(WRITELINE(*this, x1_state, hdl_w))

	MCFG_FLOPPY_DRIVE_ADD("fdc:0", x1_floppies, "dd", x1_state::floppy_formats)
	MCFG_FLOPPY_DRIVE_ADD("fdc:1", x1_floppies, "dd", x1_state::floppy_formats)
	MCFG_FLOPPY_DRIVE_ADD("fdc:2", x1_floppies, "dd", x1_state::floppy_formats)
	MCFG_FLOPPY_DRIVE_ADD("fdc:3", x1_floppies, "dd", x1_state::floppy_formats)

	MCFG_SOFTWARE_LIST_ADD("flop_list","x1_flop")

	MCFG_GENERIC_CARTSLOT_ADD("cartslot", generic_plain_slot, "x1_cart")
	MCFG_GENERIC_EXTENSIONS("bin,rom")

	SPEAKER(config, "x1_l").front_left();
	SPEAKER(config, "x1_r").front_right();
	SPEAKER(config, "pce_l").front_left();
	SPEAKER(config, "pce_r").front_right();

//  SPEAKER(config, "lspeaker").front_left();
//  SPEAKER(config, "rspeaker").front_right();

	/* TODO:is the AY mono or stereo? Also volume balance isn't right. */
	MCFG_DEVICE_ADD("ay", AY8910, MAIN_CLOCK/8)
	MCFG_AY8910_PORT_A_READ_CB(IOPORT("P1"))
	MCFG_AY8910_PORT_B_READ_CB(IOPORT("P2"))
	MCFG_SOUND_ROUTE(0, "x1_l",  0.25)
	MCFG_SOUND_ROUTE(0, "x1_r", 0.25)
	MCFG_SOUND_ROUTE(1, "x1_l",  0.5)
	MCFG_SOUND_ROUTE(2, "x1_r", 0.5)
	WAVE(config, "wave", "cassette").add_route(ALL_OUTPUTS, "x1_l", 0.25).add_route(ALL_OUTPUTS, "x1_r", 0.10);

	MCFG_CASSETTE_ADD("cassette")
	MCFG_CASSETTE_FORMATS(x1_cassette_formats)
	MCFG_CASSETTE_DEFAULT_STATE(CASSETTE_STOPPED | CASSETTE_MOTOR_DISABLED | CASSETTE_SPEAKER_ENABLED)
	MCFG_CASSETTE_INTERFACE("x1_cass")

	MCFG_SOFTWARE_LIST_ADD("cass_list","x1_cass")

	MCFG_TIMER_DRIVER_ADD_PERIODIC("keyboard_timer", x1twin_state, x1_keyboard_callback, attotime::from_hz(250))
	MCFG_TIMER_DRIVER_ADD_PERIODIC("cmt_wind_timer", x1twin_state, x1_cmt_wind_timer, attotime::from_hz(16))
MACHINE_CONFIG_END

ROM_START( x1twin )
	ROM_REGION( 0x10000, "x1_cpu", ROMREGION_ERASEFF )

	ROM_REGION( 0x8000, "ipl", ROMREGION_ERASEFF )
	ROM_LOAD( "ipl.rom", 0x0000, 0x1000, CRC(e70011d3) SHA1(d3395e9aeb5b8bbba7654dd471bcd8af228ee69a) )

	ROM_REGION( 0x10000, "wram", ROMREGION_ERASE00 )

	ROM_REGION(0x1000, "mcu", ROMREGION_ERASEFF) //MCU for the Keyboard, "sub cpu"
	ROM_LOAD( "80c48", 0x0000, 0x1000, NO_DUMP )

	ROM_REGION( 0x1000000, "emm", ROMREGION_ERASEFF )

	ROM_REGION(0x1800, "pcg", ROMREGION_ERASEFF)

	ROM_REGION(0x1000, "font", 0) //TODO: this contains 8x16 charset only, maybe it's possible that it derivates a 8x8 charset by skipping gfx lines?
	ROM_LOAD( "ank16.rom", 0x0000, 0x1000, CRC(8f9fb213) SHA1(4f06d20c997a79ee6af954b69498147789bf1847) )

	ROM_REGION(0x1800, "cgrom", 0)
	ROM_LOAD("ank8.rom", 0x00000, 0x00800, CRC(e3995a57) SHA1(1c1a0d8c9f4c446ccd7470516b215ddca5052fb2) )
	ROM_COPY("font",     0x00000, 0x00800, 0x1000 )

	ROM_REGION(0x20000, "kanji", ROMREGION_ERASEFF)

	ROM_REGION(0x20000, "raw_kanji", ROMREGION_ERASEFF) // these comes from x1 turbo
	ROM_LOAD("kanji4.rom", 0x00000, 0x8000, BAD_DUMP CRC(3e39de89) SHA1(d3fd24892bb1948c4697dedf5ff065ff3eaf7562) )
	ROM_LOAD("kanji2.rom", 0x08000, 0x8000, BAD_DUMP CRC(e710628a) SHA1(103bbe459dc8da27a9400aa45b385255c18fcc75) )
	ROM_LOAD("kanji3.rom", 0x10000, 0x8000, BAD_DUMP CRC(8cae13ae) SHA1(273f3329c70b332f6a49a3a95e906bbfe3e9f0a1) )
	ROM_LOAD("kanji1.rom", 0x18000, 0x8000, BAD_DUMP CRC(5874f70b) SHA1(dad7ada1b70c45f1e9db11db273ef7b385ef4f17) )
ROM_END

COMP( 1986, x1twin, x1, 0, x1twin, x1twin, x1twin_state, init_x1_kanji, "Sharp", "X1 Twin (CZ-830C)", MACHINE_NOT_WORKING )