summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/video/upd7220.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/devices/video/upd7220.cpp')
-rw-r--r--src/devices/video/upd7220.cpp13
1 files changed, 6 insertions, 7 deletions
diff --git a/src/devices/video/upd7220.cpp b/src/devices/video/upd7220.cpp
index f7174ae4543..16bbc507a5a 100644
--- a/src/devices/video/upd7220.cpp
+++ b/src/devices/video/upd7220.cpp
@@ -408,15 +408,14 @@ inline void upd7220_device::recompute_parameters()
attoseconds_t refresh = HZ_TO_ATTOSECONDS(clock() * 8) * horiz_pix_total * vert_pix_total;
- rectangle visarea;
-
- visarea.min_x = 0; //(m_hs + m_hbp) * 8;
- visarea.min_y = m_vbp; //m_vs + m_vbp;
- visarea.max_x = m_aw * horiz_mult - 1;//horiz_pix_total - (m_hfp * 8) - 1;
- visarea.max_y = m_al * vert_mult + m_vbp - 1;//vert_pix_total - m_vfp - 1;
+ rectangle visarea(
+ 0, //(m_hs + m_hbp) * 8;
+ m_aw * horiz_mult - 1,//horiz_pix_total - (m_hfp * 8) - 1;
+ m_vbp, //m_vs + m_vbp;
+ m_al * vert_mult + m_vbp - 1);//vert_pix_total - m_vfp - 1;
LOG("uPD7220 Screen: %u x %u @ %f Hz\n", horiz_pix_total, vert_pix_total, 1 / ATTOSECONDS_TO_DOUBLE(refresh));
- LOG("Visible Area: (%u, %u) - (%u, %u)\n", visarea.min_x, visarea.min_y, visarea.max_x, visarea.max_y);
+ LOG("Visible Area: (%u, %u) - (%u, %u)\n", visarea.left(), visarea.top(), visarea.right(), visarea.bottom());
LOG("%d %d %d %d %d\n",m_hs,m_hbp,m_aw,m_hfp,m_pitch);
LOG("%d %d %d %d\n",m_vs,m_vbp,m_al,m_vfp);
0 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705
/***************************************************************************

    Xexex  (c) 1991 Konami - GX067


Change Log
----------

(ATXXXX03)

Hooked up missing memory handler, emulated object DMA, revised IRQ,
rewrote the K053250(LVC) effect generator, ported tilemaps to use the
K056832 emulation(the K054157 is a complete subset of the K056832),
corrected a few K054539 PCM chip misbehaviors, etc.


The following bugs appear to be fixed:

General:

- game doesn't slow down like the arcade
    IRQ 5 is the "OBJDMA end interrupt" and shouldn't be triggered
    if DMA didn't complete within the frame.

    * game speed may not be 100% correct but close to that on the
    Gamest video especially in stage 6. Xexex is 384x256 which suggests
    an 8Mhz horizontal dotclock and DMA delay can range up to 32.0us(clear)
    + 256.0us(transfer). Increase XE_DMADELAY if emulation runs faster
    than the original or use cheat to overclock CPU 0 if you prefer faster
    gameplay.

- sprite lag, dithering, flicking (DMA)
- line effects go out of sync (K053250 also does DMA)
- inconsistent reverb (maths bug)
- lasers don't change color (IRQ masking)
- xexex057gre_1 (delayed sfx, missing speech, Xexexj only: random 1-up note)
- xexex057gre_2 (reversed stereo)
- xexex065gre (coin up problems, IRQ order)

- L1: xexex067gre (tilemap boundary), misaligned bosses (swapXY)
- L2: xexex061gre (K054157 offset)
- L4: half the foreground missing (LVC no-wraparound)
- L5: poly-face boss missing (coordinate masking)
- L6: sticky galaxies (LVC scroll bug)
- L7: misaligned ship patches (swapXY)


Unresolved Issues:

- random 1-up notes still pop up in the world version (filtered temporarily)
- mono/stereo softdip has no effect (xexex057gre_3, external mixing?)
- K053250 shows a one-frame glitch at stage 1 boss (DMA timing?)
- stage 3 intro missing alpha effect (known K054338 deficiency)
- the stage 4 boss(tentacles) sometimes appears darker (palette update timing?)
- the furthest layer in stage 5 shakes when scrolling up or down (needs verification)
- Elaine's end-game graphics has wrong masking effect (known non-zoomed pdrawgfx issue)

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

#include "emu.h"
#include "cpu/m68000/m68000.h"
#include "deprecat.h"
#include "video/konicdev.h"
#include "cpu/z80/z80.h"
#include "machine/eeprom.h"
#include "sound/k054539.h"
#include "sound/2151intf.h"
#include "sound/flt_vol.h"
#include "includes/xexex.h"
#include "includes/konamipt.h"

#define XE_DEBUG      0
#define XE_SKIPIDLE   1
#define XE_DMADELAY   attotime::from_usec(256)

static const eeprom_interface eeprom_intf =
{
	7,				/* address bits */
	8,				/* data bits */
	"011000",		/*  read command */
	"011100",		/* write command */
	"0100100000000",/* erase command */
	"0100000000000",/* lock command */
	"0100110000000" /* unlock command */
};

#if 0 // (for reference; do not remove)

/* the interface with the 053247 is weird. The chip can address only 0x1000 bytes */
/* of RAM, but they put 0x8000 there. The CPU can access them all. Address lines */
/* A1, A5 and A6 don't go to the 053247. */
static READ16_HANDLER( K053247_scattered_word_r )
{
	xexex_state *state = space->machine->driver_data<xexex_state>();

	if (offset & 0x0031)
		return state->spriteram[offset];
	else
	{
		offset = ((offset & 0x000e) >> 1) | ((offset & 0x3fc0) >> 3);
		return k053247_word_r(state->k053246, offset, mem_mask);
	}
}

static WRITE16_HANDLER( K053247_scattered_word_w )
{
	xexex_state *state = space->machine->driver_data<xexex_state>();

	if (offset & 0x0031)
		COMBINE_DATA(state->spriteram + offset);
	else
	{
		offset = ((offset & 0x000e) >> 1) | ((offset & 0x3fc0) >> 3);
		k053247_word_w(state->k053246, offset, data, mem_mask);
	}
}

#endif


static void xexex_objdma( running_machine *machine, int limiter )
{
	xexex_state *state = machine->driver_data<xexex_state>();
	int counter, num_inactive;
	UINT16 *src, *dst;

	counter = state->frame;
	state->frame = machine->primary_screen->frame_number();
	if (limiter && counter == state->frame)
		return; // make sure we only do DMA transfer once per frame

	k053247_get_ram(state->k053246, &dst);
	counter = k053247_get_dy(state->k053246);
	src = state->spriteram;
	num_inactive = counter = 256;

	do
	{
		if (*src & 0x8000)
		{
			dst[0] = src[0x0];  dst[1] = src[0x2];
			dst[2] = src[0x4];  dst[3] = src[0x6];
			dst[4] = src[0x8];  dst[5] = src[0xa];
			dst[6] = src[0xc];  dst[7] = src[0xe];
			dst += 8;
			num_inactive--;
		}
		src += 0x40;
	}
	while (--counter);

	if (num_inactive) do { *dst = 0; dst += 8; } while (--num_inactive);
}

static READ16_HANDLER( spriteram_mirror_r )
{
	xexex_state *state = space->machine->driver_data<xexex_state>();
	return state->spriteram[offset];
}

static WRITE16_HANDLER( spriteram_mirror_w )
{
	xexex_state *state = space->machine->driver_data<xexex_state>();
	COMBINE_DATA(state->spriteram + offset);
}

static READ16_HANDLER( xexex_waitskip_r )
{
	xexex_state *state = space->machine->driver_data<xexex_state>();

	if (cpu_get_pc(space->cpu) == 0x1158)
	{
		cpu_spinuntil_trigger(space->cpu, state->resume_trigger);
		state->suspension_active = 1;
	}

	return state->workram[0x14/2];
}


static void parse_control2( running_machine *machine )
{
	xexex_state *state = machine->driver_data<xexex_state>();

	/* bit 0  is data */
	/* bit 1  is cs (active low) */
	/* bit 2  is clock (active high) */
	/* bit 5  is enable irq 6 */
	/* bit 6  is enable irq 5 */
	/* bit 11 is watchdog */
	input_port_write(machine, "EEPROMOUT", state->cur_control2, 0xff);

	/* bit 8 = enable sprite ROM reading */
	k053246_set_objcha_line(state->k053246, (state->cur_control2 & 0x0100) ? ASSERT_LINE : CLEAR_LINE);

	/* bit 9 = disable alpha channel on K054157 plane 0 (under investigation) */
	state->cur_alpha = !(state->cur_control2 & 0x200);
}

static READ16_HANDLER( control2_r )
{
	xexex_state *state = space->machine->driver_data<xexex_state>();
	return state->cur_control2;
}

static WRITE16_HANDLER( control2_w )
{
	xexex_state *state = space->machine->driver_data<xexex_state>();
	COMBINE_DATA(&state->cur_control2);
	parse_control2(space->machine);
}


static WRITE16_HANDLER( sound_cmd1_w )
{
	xexex_state *state = space->machine->driver_data<xexex_state>();

	if(ACCESSING_BITS_0_7)
	{
		// anyone knows why 0x1a keeps lurking the sound queue in the world version???
		if (state->strip_0x1a)
			if (soundlatch2_r(space, 0) == 1 && data == 0x1a)
				return;

		soundlatch_w(space, 0, data & 0xff);
	}
}

static WRITE16_HANDLER( sound_cmd2_w )
{
	if (ACCESSING_BITS_0_7)
		soundlatch2_w(space, 0, data & 0xff);
}

static WRITE16_HANDLER( sound_irq_w )
{
	xexex_state *state = space->machine->driver_data<xexex_state>();
	cpu_set_input_line(state->audiocpu, 0, HOLD_LINE);
}

static READ16_HANDLER( sound_status_r )
{
	return soundlatch3_r(space, 0);
}

static void reset_sound_region(running_machine *machine)
{
	xexex_state *state = machine->driver_data<xexex_state>();
	memory_set_bank(machine, "bank2", state->cur_sound_region & 0x07);
}

static WRITE8_HANDLER( sound_bankswitch_w )
{
	xexex_state *state = space->machine->driver_data<xexex_state>();
	state->cur_sound_region = data & 7;
	reset_sound_region(space->machine);
}

static void ym_set_mixing(device_t *device, double left, double right)
{
	xexex_state *state = device->machine->driver_data<xexex_state>();
	flt_volume_set_volume(state->filter1l, (71.0 * left) / 55.0);
	flt_volume_set_volume(state->filter1r, (71.0 * right) / 55.0);
	flt_volume_set_volume(state->filter2l, (71.0 * left) / 55.0);
	flt_volume_set_volume(state->filter2r, (71.0 * right) / 55.0);
}

static TIMER_CALLBACK( dmaend_callback )
{
	xexex_state *state = machine->driver_data<xexex_state>();

	if (state->cur_control2 & 0x0040)
	{
		// foul-proof (CPU0 could be deactivated while we wait)
		if (state->suspension_active)
		{
			state->suspension_active = 0;
			cpuexec_trigger(machine, state->resume_trigger);
		}

		// IRQ 5 is the "object DMA end interrupt" and shouldn't be triggered
		// if object data isn't ready for DMA within the frame.
		cpu_set_input_line(state->maincpu, 5, HOLD_LINE);
	}
}

static INTERRUPT_GEN( xexex_interrupt )
{
	xexex_state *state = device->machine->driver_data<xexex_state>();

	if (state->suspension_active)
	{
		state->suspension_active = 0;
		cpuexec_trigger(device->machine, state->resume_trigger);
	}

	switch (cpu_getiloops(device))
	{
		case 0:
			// IRQ 6 is for test mode only
			if (state->cur_control2 & 0x0020)
				cpu_set_input_line(device, 6, HOLD_LINE);
		break;

		case 1:
			if (k053246_is_irq_enabled(state->k053246))
			{
				// OBJDMA starts at the beginning of V-blank
				xexex_objdma(device->machine, 0);

				// schedule DMA end interrupt
				timer_adjust_oneshot(state->dmadelay_timer, XE_DMADELAY, 0);
			}

			// IRQ 4 is the V-blank interrupt. It controls color, sound and
			// vital game logics that shouldn't be interfered by frame-drop.
			if (state->cur_control2 & 0x0800)
				cpu_set_input_line(device, 4, HOLD_LINE);
		break;
	}
}


static ADDRESS_MAP_START( main_map, ADDRESS_SPACE_PROGRAM, 16 )
	AM_RANGE(0x000000, 0x07ffff) AM_ROM
	AM_RANGE(0x080000, 0x08ffff) AM_RAM AM_BASE_MEMBER(xexex_state, workram)			// work RAM

#if XE_SKIPIDLE
	AM_RANGE(0x080014, 0x080015) AM_READ(xexex_waitskip_r)				// helps sound CPU by giving back control as early as possible
#endif

	AM_RANGE(0x090000, 0x097fff) AM_RAM AM_BASE_MEMBER(xexex_state, spriteram)			// K053247 sprite RAM
	AM_RANGE(0x098000, 0x09ffff) AM_READWRITE(spriteram_mirror_r, spriteram_mirror_w)	// K053247 sprite RAM mirror read
	AM_RANGE(0x0c0000, 0x0c003f) AM_DEVWRITE("k056832", k056832_word_w)				// VACSET (K054157)
	AM_RANGE(0x0c2000, 0x0c2007) AM_DEVWRITE("k053246", k053246_word_w)				// OBJSET1
	AM_RANGE(0x0c4000, 0x0c4001) AM_DEVREAD("k053246", k053246_word_r)				// Passthrough to sprite roms
	AM_RANGE(0x0c6000, 0x0c7fff) AM_DEVREADWRITE("k053250", k053250_ram_r, k053250_ram_w)	// K053250 "road" RAM
	AM_RANGE(0x0c8000, 0x0c800f) AM_DEVREADWRITE("k053250", k053250_r, k053250_w)
	AM_RANGE(0x0ca000, 0x0ca01f) AM_DEVWRITE("k054338", k054338_word_w)				// CLTC
	AM_RANGE(0x0cc000, 0x0cc01f) AM_DEVWRITE("k053251", k053251_lsb_w)				// priority encoder
	AM_RANGE(0x0d0000, 0x0d001f) AM_DEVWRITE("k053252", k053252_word_w)				// CCU
	AM_RANGE(0x0d4000, 0x0d4001) AM_WRITE(sound_irq_w)
	AM_RANGE(0x0d600c, 0x0d600d) AM_WRITE(sound_cmd1_w)
	AM_RANGE(0x0d600e, 0x0d600f) AM_WRITE(sound_cmd2_w)
	AM_RANGE(0x0d6014, 0x0d6015) AM_READ(sound_status_r)
	AM_RANGE(0x0d6000, 0x0d601f) AM_RAM									// sound regs fall through
	AM_RANGE(0x0d8000, 0x0d8007) AM_DEVWRITE("k056832", k056832_b_word_w)				// VSCCS regs
	AM_RANGE(0x0da000, 0x0da001) AM_READ_PORT("P1")
	AM_RANGE(0x0da002, 0x0da003) AM_READ_PORT("P2")
	AM_RANGE(0x0dc000, 0x0dc001) AM_READ_PORT("SYSTEM")
	AM_RANGE(0x0dc002, 0x0dc003) AM_READ_PORT("EEPROM")
	AM_RANGE(0x0de000, 0x0de001) AM_READWRITE(control2_r, control2_w)
	AM_RANGE(0x100000, 0x17ffff) AM_ROM
	AM_RANGE(0x180000, 0x181fff) AM_DEVREADWRITE("k056832", k056832_ram_word_r, k056832_ram_word_w)
	AM_RANGE(0x182000, 0x183fff) AM_DEVREADWRITE("k056832", k056832_ram_word_r, k056832_ram_word_w)
	AM_RANGE(0x190000, 0x191fff) AM_DEVREAD("k056832", k056832_rom_word_r)		// Passthrough to tile roms
	AM_RANGE(0x1a0000, 0x1a1fff) AM_DEVREAD("k053250", k053250_rom_r)
	AM_RANGE(0x1b0000, 0x1b1fff) AM_RAM_WRITE(paletteram16_xrgb_word_be_w) AM_BASE_GENERIC(paletteram)

#if XE_DEBUG
	AM_RANGE(0x0c0000, 0x0c003f) AM_DEVREAD("k056832", k056832_word_r)
	AM_RANGE(0x0c2000, 0x0c2007) AM_DEVREAD("k053246", k053246_reg_word_r)
	AM_RANGE(0x0ca000, 0x0ca01f) AM_DEVREAD("k054338", k054338_word_r)
	AM_RANGE(0x0cc000, 0x0cc01f) AM_DEVREAD("k053251", k053251_lsb_r)
	AM_RANGE(0x0d0000, 0x0d001f) AM_DEVREAD("k053252", k053252_word_r)
	AM_RANGE(0x0d8000, 0x0d8007) AM_DEVREAD("k056832", k056832_b_word_r)
#endif

ADDRESS_MAP_END


static ADDRESS_MAP_START( sound_map, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x8000, 0xbfff) AM_ROMBANK("bank2")
	AM_RANGE(0x0000, 0xbfff) AM_ROM
	AM_RANGE(0xc000, 0xdfff) AM_RAM
	AM_RANGE(0xe000, 0xe22f) AM_DEVREADWRITE("k054539", k054539_r, k054539_w)
	AM_RANGE(0xec00, 0xec01) AM_DEVREADWRITE("ymsnd", ym2151_r, ym2151_w)
	AM_RANGE(0xf000, 0xf000) AM_WRITE(soundlatch3_w)
	AM_RANGE(0xf002, 0xf002) AM_READ(soundlatch_r)
	AM_RANGE(0xf003, 0xf003) AM_READ(soundlatch2_r)
	AM_RANGE(0xf800, 0xf800) AM_WRITE(sound_bankswitch_w)
ADDRESS_MAP_END


static INPUT_PORTS_START( xexex )
	PORT_START("SYSTEM")
	PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_COIN1 )
	PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_COIN2 )
	PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_SERVICE1 )
	PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_SERVICE2 )
	PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0xff00, IP_ACTIVE_LOW, IPT_UNKNOWN )

	PORT_START("P1")
	KONAMI16_LSB(1, IPT_UNKNOWN, IPT_START1 )

	PORT_START("P2")
	KONAMI16_LSB(2, IPT_UNKNOWN, IPT_START2 )

	PORT_START("EEPROM")
	PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_READ_LINE_DEVICE("eeprom", eeprom_read_bit)
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_SPECIAL )	/* EEPROM ready (always 1) */
	PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_SERVICE_NO_TOGGLE( 0x08, IP_ACTIVE_LOW )
	PORT_BIT( 0xf0, IP_ACTIVE_HIGH, IPT_UNKNOWN )

	PORT_START( "EEPROMOUT" )
	PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_OUTPUT ) PORT_WRITE_LINE_DEVICE("eeprom", eeprom_write_bit)
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_OUTPUT ) PORT_WRITE_LINE_DEVICE("eeprom", eeprom_set_cs_line)
	PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_OUTPUT ) PORT_WRITE_LINE_DEVICE("eeprom", eeprom_set_clock_line)
INPUT_PORTS_END



static const k054539_interface k054539_config =
{
	NULL,
	ym_set_mixing
};

static const k054338_interface xexex_k054338_intf =
{
	"screen",
	0,
	"none"
};


static const k053250_interface xexex_k053250_intf =
{
	"screen",
	"gfx3",
	-5, -16
};

static const k056832_interface xexex_k056832_intf =
{
	"gfx1", 0,
	K056832_BPP_4,
	1, 0,
	KONAMI_ROM_DEINTERLEAVE_2,
	xexex_tile_callback, "none"
};

static const k053247_interface xexex_k053246_intf =
{
	"screen",
	"gfx2", 1,
	NORMAL_PLANE_ORDER,
	-48, 32,
	KONAMI_ROM_DEINTERLEAVE_4,
	xexex_sprite_callback
};

static STATE_POSTLOAD( xexex_postload )
{
	parse_control2(machine);
	reset_sound_region(machine);
}

static MACHINE_START( xexex )
{
	xexex_state *state = machine->driver_data<xexex_state>();
	UINT8 *ROM = machine->region("audiocpu")->base();

	memory_configure_bank(machine, "bank2", 0, 8, &ROM[0x10000], 0x4000);
	memory_set_bank(machine, "bank2", 0);

	state->maincpu = machine->device("maincpu");
	state->audiocpu = machine->device("audiocpu");
	state->k053246 = machine->device("k053246");
	state->k053250 = machine->device("k053250");
	state->k053251 = machine->device("k053251");
	state->k053252 = machine->device("k053252");
	state->k056832 = machine->device("k056832");
	state->k054338 = machine->device("k054338");
	state->k054539 = machine->device("k054539");
	state->filter1l = machine->device("filter1l");
	state->filter1r = machine->device("filter1r");
	state->filter2l = machine->device("filter2l");
	state->filter2r = machine->device("filter2r");

	state_save_register_global(machine, state->cur_alpha);
	state_save_register_global(machine, state->sprite_colorbase);
	state_save_register_global_array(machine, state->layer_colorbase);
	state_save_register_global_array(machine, state->layerpri);

	state_save_register_global(machine, state->suspension_active);
	state_save_register_global(machine, state->frame);

	state_save_register_global(machine, state->cur_control2);
	state_save_register_global(machine, state->cur_sound_region);
	state_save_register_postload(machine, xexex_postload, NULL);

	state->dmadelay_timer = timer_alloc(machine, dmaend_callback, NULL);
}

static MACHINE_RESET( xexex )
{
	xexex_state *state = machine->driver_data<xexex_state>();
	int i;

	for (i = 0; i < 4; i++)
	{
		state->layerpri[i] = 0;
		state->layer_colorbase[i] = 0;
	}

	state->sprite_colorbase = 0;

	state->cur_control2 = 0;
	state->cur_sound_region = 0;
	state->suspension_active = 0;
	state->resume_trigger = 1000;
	state->frame = -1;
	k054539_init_flags(machine->device("k054539"), K054539_REVERSE_STEREO);
}

static MACHINE_CONFIG_START( xexex, xexex_state )

	/* basic machine hardware */
	MCFG_CPU_ADD("maincpu", M68000, 16000000)	// 16MHz (32MHz xtal)
	MCFG_CPU_PROGRAM_MAP(main_map)
	MCFG_CPU_VBLANK_INT_HACK(xexex_interrupt,2)

	// 8MHz (PCB shows one 32MHz/18.432MHz xtal, reference: www.system16.com)
	// more likely 32MHz since 18.432MHz yields 4.608MHz(too slow) or 9.216MHz(too fast) with integer divisors
	MCFG_CPU_ADD("audiocpu", Z80, 8000000)
	MCFG_CPU_PROGRAM_MAP(sound_map)

	MCFG_QUANTUM_TIME(attotime::from_hz(1920))

	MCFG_MACHINE_START(xexex)
	MCFG_MACHINE_RESET(xexex)

	MCFG_EEPROM_ADD("eeprom", eeprom_intf)

	/* video hardware */
	MCFG_VIDEO_ATTRIBUTES(VIDEO_HAS_SHADOWS | VIDEO_HAS_HIGHLIGHTS | VIDEO_UPDATE_BEFORE_VBLANK)

	MCFG_SCREEN_ADD("screen", RASTER)
//  MCFG_SCREEN_REFRESH_RATE(8000000/512/288)
	MCFG_SCREEN_RAW_PARAMS(8000000, 384+33+40+55, 0, 383, 256+12+6+14, 0, 255)
	MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
	MCFG_SCREEN_FORMAT(BITMAP_FORMAT_RGB32)
	MCFG_SCREEN_SIZE(64*8, 32*8)
	MCFG_SCREEN_VISIBLE_AREA(40, 40+384-1, 0, 0+256-1)

	MCFG_PALETTE_LENGTH(2048)

	MCFG_VIDEO_START(xexex)
	MCFG_VIDEO_UPDATE(xexex)

	MCFG_K056832_ADD("k056832", xexex_k056832_intf)
	MCFG_K053246_ADD("k053246", xexex_k053246_intf)
	MCFG_K053250_ADD("k053250", xexex_k053250_intf)
	MCFG_K053251_ADD("k053251")
	MCFG_K053252_ADD("k053252")
	MCFG_K054338_ADD("k054338", xexex_k054338_intf)

	/* sound hardware */
	MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker")

	MCFG_SOUND_ADD("ymsnd", YM2151, 4000000)
	MCFG_SOUND_ROUTE(0, "filter1l", 0.50)
	MCFG_SOUND_ROUTE(0, "filter1r", 0.50)
	MCFG_SOUND_ROUTE(1, "filter2l", 0.50)
	MCFG_SOUND_ROUTE(1, "filter2r", 0.50)

	MCFG_SOUND_ADD("k054539", K054539, 48000)
	MCFG_SOUND_CONFIG(k054539_config)
	MCFG_SOUND_ROUTE(0, "lspeaker", 1.0)
	MCFG_SOUND_ROUTE(0, "rspeaker", 1.0)
	MCFG_SOUND_ROUTE(1, "lspeaker", 1.0)
	MCFG_SOUND_ROUTE(1, "rspeaker", 1.0)

	MCFG_SOUND_ADD("filter1l", FILTER_VOLUME, 0)
	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 1.0)
	MCFG_SOUND_ADD("filter1r", FILTER_VOLUME, 0)
	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 1.0)
	MCFG_SOUND_ADD("filter2l", FILTER_VOLUME, 0)
	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 1.0)
	MCFG_SOUND_ADD("filter2r", FILTER_VOLUME, 0)
	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 1.0)
MACHINE_CONFIG_END


ROM_START( xexex ) /* Europe, Version AA */
	ROM_REGION( 0x180000, "maincpu", 0 )
	ROM_LOAD16_BYTE( "067eaa01.16d", 0x000000, 0x40000, CRC(3ebcb066) SHA1(83a20433d9fdcc8b8d7133991f9a8164dddb61f3) )
	ROM_LOAD16_BYTE( "067eaa02.16f", 0x000001, 0x40000, CRC(36ea7a48) SHA1(34f8046d7ecf5ea66c59c5bc0d7627942c28fd3b) )
	ROM_LOAD16_BYTE( "067_b03.rom",  0x100000, 0x40000, CRC(97833086) SHA1(a564f7b1b52c774d78a59f4418c7ecccaf94ad41) )
	ROM_LOAD16_BYTE( "067_b04.rom",  0x100001, 0x40000, CRC(26ec5dc8) SHA1(9da62683bfa8f16607cbea2d59a1446ec8588c5b) )

	ROM_REGION( 0x030000, "audiocpu", 0 )
	ROM_LOAD( "067eaa05.4e", 0x000000, 0x020000, CRC(0e33d6ec) SHA1(4dd68cb78c779e2d035e43fec35a7672ed1c259b) )
	ROM_RELOAD(              0x010000, 0x020000 )

	ROM_REGION( 0x200000, "gfx1", 0 )
	ROM_LOAD( "067_b14.rom", 0x000000, 0x100000, CRC(02a44bfa) SHA1(ad95df4dbf8842820ef20f54407870afb6d0e4a3) )
	ROM_LOAD( "067_b13.rom", 0x100000, 0x100000, CRC(633c8eb5) SHA1(a11f78003a1dffe2d8814d368155059719263082) )

	ROM_REGION( 0x400000, "gfx2", 0 )
	ROM_LOAD( "067_b12.rom", 0x000000, 0x100000, CRC(08d611b0) SHA1(9cac60131e0411f173acd8ef3f206e5e58a7e5d2) )
	ROM_LOAD( "067_b11.rom", 0x100000, 0x100000, CRC(a26f7507) SHA1(6bf717cb9fcad59a2eafda967f14120b9ebbc8c5) )
	ROM_LOAD( "067_b10.rom", 0x200000, 0x100000, CRC(ee31db8d) SHA1(c41874fb8b401ea9cdd327ee6239b5925418cf7b) )
	ROM_LOAD( "067_b09.rom", 0x300000, 0x100000, CRC(88f072ef) SHA1(7ecc04dbcc29b715117e970cc96e11137a21b83a) )

	ROM_REGION( 0x100000, "gfx3", 0 ) // NOTE: region must be 2xROM size for unpacking
	ROM_LOAD( "067_b08.rom", 0x000000, 0x080000, CRC(ca816b7b) SHA1(769ce3700e41200c34adec98598c0fe371fe1e6d) )

	ROM_REGION( 0x300000, "k054539", 0 )
	ROM_LOAD( "067_b06.rom", 0x000000, 0x200000, CRC(3b12fce4) SHA1(c69172d9965b8da8a539812fac92d5f1a3c80d17) )
	ROM_LOAD( "067_b07.rom", 0x200000, 0x100000, CRC(ec87fe1b) SHA1(ec9823aea5a1fc5c47c8262e15e10b28be87231c) )

	ROM_REGION( 0x80, "eeprom", 0 ) // default eeprom to prevent game booting upside down with error
	ROM_LOAD( "xexex.nv", 0x0000, 0x080, CRC(155624cc) SHA1(457f921e3a5d053c53e4f1a44941eb0a1f22e1b2) )
ROM_END

ROM_START( xexexa ) /* Asia, Version AA */
	ROM_REGION( 0x180000, "maincpu", 0 )
	ROM_LOAD16_BYTE( "067aaa01.16d", 0x000000, 0x40000, CRC(cf557144) SHA1(4ce587580d953b88864652dd66485d49ca719ec5) )
	ROM_LOAD16_BYTE( "067aaa02.16f", 0x000001, 0x40000, CRC(b7b98d52) SHA1(ca2343bf37f779699b6782772e559ea5662c1742) )
	ROM_LOAD16_BYTE( "067_b03.rom",  0x100000, 0x40000, CRC(97833086) SHA1(a564f7b1b52c774d78a59f4418c7ecccaf94ad41) )
	ROM_LOAD16_BYTE( "067_b04.rom",  0x100001, 0x40000, CRC(26ec5dc8) SHA1(9da62683bfa8f16607cbea2d59a1446ec8588c5b) )

	ROM_REGION( 0x030000, "audiocpu", 0 )
	ROM_LOAD( "067eaa05.4e", 0x000000, 0x020000, CRC(0e33d6ec) SHA1(4dd68cb78c779e2d035e43fec35a7672ed1c259b) )
	ROM_RELOAD(              0x010000, 0x020000 )

	ROM_REGION( 0x200000, "gfx1", 0 )
	ROM_LOAD( "067_b14.rom", 0x000000, 0x100000, CRC(02a44bfa) SHA1(ad95df4dbf8842820ef20f54407870afb6d0e4a3) )
	ROM_LOAD( "067_b13.rom", 0x100000, 0x100000, CRC(633c8eb5) SHA1(a11f78003a1dffe2d8814d368155059719263082) )

	ROM_REGION( 0x400000, "gfx2", 0 )
	ROM_LOAD( "067_b12.rom", 0x000000, 0x100000, CRC(08d611b0) SHA1(9cac60131e0411f173acd8ef3f206e5e58a7e5d2) )
	ROM_LOAD( "067_b11.rom", 0x100000, 0x100000, CRC(a26f7507) SHA1(6bf717cb9fcad59a2eafda967f14120b9ebbc8c5) )
	ROM_LOAD( "067_b10.rom", 0x200000, 0x100000, CRC(ee31db8d) SHA1(c41874fb8b401ea9cdd327ee6239b5925418cf7b) )
	ROM_LOAD( "067_b09.rom", 0x300000, 0x100000, CRC(88f072ef) SHA1(7ecc04dbcc29b715117e970cc96e11137a21b83a) )

	ROM_REGION( 0x100000, "gfx3", 0 ) // NOTE: region must be 2xROM size for unpacking
	ROM_LOAD( "067_b08.rom", 0x000000, 0x080000, CRC(ca816b7b) SHA1(769ce3700e41200c34adec98598c0fe371fe1e6d) )

	ROM_REGION( 0x300000, "k054539", 0 )
	ROM_LOAD( "067_b06.rom", 0x000000, 0x200000, CRC(3b12fce4) SHA1(c69172d9965b8da8a539812fac92d5f1a3c80d17) )
	ROM_LOAD( "067_b07.rom", 0x200000, 0x100000, CRC(ec87fe1b) SHA1(ec9823aea5a1fc5c47c8262e15e10b28be87231c) )

	ROM_REGION( 0x80, "eeprom", 0 ) // default eeprom to prevent game booting upside down with error
	ROM_LOAD( "xexexa.nv", 0x0000, 0x080, CRC(051c14c6) SHA1(23addbaa2ce323c06551b343ca45dea4fd2b9eee) )
ROM_END

ROM_START( xexexj ) /* Japan, Version AA */
	ROM_REGION( 0x180000, "maincpu", 0 )
	ROM_LOAD16_BYTE( "067jaa01.16d", 0x000000, 0x40000, CRC(06e99784) SHA1(d53fe3724608992a6938c36aa2719dc545d6b89e) )
	ROM_LOAD16_BYTE( "067jaa02.16f", 0x000001, 0x40000, CRC(30ae5bc4) SHA1(60491e31eef64a9206d1372afa32d83c6c0968b3) )
	ROM_LOAD16_BYTE( "067_b03.rom",  0x100000, 0x40000, CRC(97833086) SHA1(a564f7b1b52c774d78a59f4418c7ecccaf94ad41) )
	ROM_LOAD16_BYTE( "067_b04.rom",  0x100001, 0x40000, CRC(26ec5dc8) SHA1(9da62683bfa8f16607cbea2d59a1446ec8588c5b) )

	ROM_REGION( 0x030000, "audiocpu", 0 )
	ROM_LOAD( "067jaa05.4e", 0x000000, 0x020000, CRC(2f4dd0a8) SHA1(bfa76c9c968f1beba648a2911510e3d666a8fe3a) )
	ROM_RELOAD(              0x010000, 0x020000 )

	ROM_REGION( 0x200000, "gfx1", 0 )
	ROM_LOAD( "067_b14.rom", 0x000000, 0x100000, CRC(02a44bfa) SHA1(ad95df4dbf8842820ef20f54407870afb6d0e4a3) )
	ROM_LOAD( "067_b13.rom", 0x100000, 0x100000, CRC(633c8eb5) SHA1(a11f78003a1dffe2d8814d368155059719263082) )

	ROM_REGION( 0x400000, "gfx2", 0 )
	ROM_LOAD( "067_b12.rom", 0x000000, 0x100000, CRC(08d611b0) SHA1(9cac60131e0411f173acd8ef3f206e5e58a7e5d2) )
	ROM_LOAD( "067_b11.rom", 0x100000, 0x100000, CRC(a26f7507) SHA1(6bf717cb9fcad59a2eafda967f14120b9ebbc8c5) )
	ROM_LOAD( "067_b10.rom", 0x200000, 0x100000, CRC(ee31db8d) SHA1(c41874fb8b401ea9cdd327ee6239b5925418cf7b) )
	ROM_LOAD( "067_b09.rom", 0x300000, 0x100000, CRC(88f072ef) SHA1(7ecc04dbcc29b715117e970cc96e11137a21b83a) )

	ROM_REGION( 0x100000, "gfx3", 0 ) // NOTE: region must be 2xROM size for unpacking
	ROM_LOAD( "067_b08.rom", 0x000000, 0x080000, CRC(ca816b7b) SHA1(769ce3700e41200c34adec98598c0fe371fe1e6d) )

	ROM_REGION( 0x300000, "k054539", 0 )
	ROM_LOAD( "067_b06.rom", 0x000000, 0x200000, CRC(3b12fce4) SHA1(c69172d9965b8da8a539812fac92d5f1a3c80d17) )
	ROM_LOAD( "067_b07.rom", 0x200000, 0x100000, CRC(ec87fe1b) SHA1(ec9823aea5a1fc5c47c8262e15e10b28be87231c) )

	ROM_REGION( 0x80, "eeprom", 0 ) // default eeprom to prevent game booting upside down with error
	ROM_LOAD( "xexexj.nv", 0x0000, 0x080, CRC(79a79c7b) SHA1(02eb235226949af0147d6d0fd2bd3d7a68083ae6) )
ROM_END


static DRIVER_INIT( xexex )
{
	xexex_state *state = machine->driver_data<xexex_state>();

	state->strip_0x1a = 0;

	if (!strcmp(machine->gamedrv->name, "xexex"))
	{
		// Invulnerability
//      *(UINT16 *)(machine->region("maincpu")->base() + 0x648d4) = 0x4a79;
//      *(UINT16 *)(machine->region("maincpu")->base() + 0x00008) = 0x5500;
		state->strip_0x1a = 1;
	}
}

GAME( 1991, xexex,  0,     xexex, xexex, xexex, ROT0, "Konami", "Xexex (ver EAA)", GAME_SUPPORTS_SAVE )
GAME( 1991, xexexa, xexex, xexex, xexex, xexex, ROT0, "Konami", "Xexex (ver AAA)", GAME_SUPPORTS_SAVE )
GAME( 1991, xexexj, xexex, xexex, xexex, xexex, ROT0, "Konami", "Xexex (ver JAA)", GAME_SUPPORTS_SAVE )