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

Contra/Gryzor (c) 1987 Konami

Notes:
    Press 1P and 2P together to advance through tests.

Credits:
    Carlos A. Lozano: CPU emulation
    Phil Stroffolino: video driver
    Jose Tejada Gomez (of Grytra fame) for precious information on sprites
    Eric Hustvedt: palette optimizations and cocktail support

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

#include "driver.h"
#include "vidhrdw/generic.h"
#include "cpu/m6809/m6809.h"

extern unsigned char *contra_fg_vram,*contra_fg_cram;
extern unsigned char *contra_bg_vram,*contra_bg_cram;
extern unsigned char *contra_text_vram,*contra_text_cram;

PALETTE_INIT( contra );

WRITE8_HANDLER( contra_fg_vram_w );
WRITE8_HANDLER( contra_fg_cram_w );
WRITE8_HANDLER( contra_bg_vram_w );
WRITE8_HANDLER( contra_bg_cram_w );
WRITE8_HANDLER( contra_text_vram_w );
WRITE8_HANDLER( contra_text_cram_w );

WRITE8_HANDLER( contra_K007121_ctrl_0_w );
WRITE8_HANDLER( contra_K007121_ctrl_1_w );
VIDEO_UPDATE( contra );
VIDEO_START( contra );


WRITE8_HANDLER( contra_bankswitch_w )
{
	int bankaddress;
	unsigned char *RAM = memory_region(REGION_CPU1);


	bankaddress = 0x10000 + (data & 0x0f) * 0x2000;
	if (bankaddress < 0x28000)	/* for safety */
		cpu_setbank(1,&RAM[bankaddress]);
}

WRITE8_HANDLER( contra_sh_irqtrigger_w )
{
	cpunum_set_input_line(1,M6809_IRQ_LINE,HOLD_LINE);
}

WRITE8_HANDLER( contra_coin_counter_w )
{
	if (data & 0x01) coin_counter_w(0,data & 0x01);
	if (data & 0x02) coin_counter_w(1,(data & 0x02) >> 1);
}

static WRITE8_HANDLER( cpu_sound_command_w )
{
	soundlatch_w(offset,data);
}



static ADDRESS_MAP_START( readmem, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0010, 0x0010) AM_READ(input_port_0_r)		/* IN0 */
	AM_RANGE(0x0011, 0x0011) AM_READ(input_port_1_r)		/* IN1 */
	AM_RANGE(0x0012, 0x0012) AM_READ(input_port_2_r)		/* IN2 */

	AM_RANGE(0x0014, 0x0014) AM_READ(input_port_3_r)		/* DIPSW1 */
	AM_RANGE(0x0015, 0x0015) AM_READ(input_port_4_r)		/* DIPSW2 */
	AM_RANGE(0x0016, 0x0016) AM_READ(input_port_5_r)		/* DIPSW3 */

	AM_RANGE(0x0c00, 0x0cff) AM_READ(MRA8_RAM)
	AM_RANGE(0x1000, 0x5fff) AM_READ(MRA8_RAM)
	AM_RANGE(0x6000, 0x7fff) AM_READ(MRA8_BANK1)
	AM_RANGE(0x8000, 0xffff) AM_READ(MRA8_ROM)
ADDRESS_MAP_END

static ADDRESS_MAP_START( writemem, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x0007) AM_WRITE(contra_K007121_ctrl_0_w)
	AM_RANGE(0x0018, 0x0018) AM_WRITE(contra_coin_counter_w)
	AM_RANGE(0x001a, 0x001a) AM_WRITE(contra_sh_irqtrigger_w)
	AM_RANGE(0x001c, 0x001c) AM_WRITE(cpu_sound_command_w)
	AM_RANGE(0x001e, 0x001e) AM_WRITE(MWA8_NOP)	/* ? */
	AM_RANGE(0x0060, 0x0067) AM_WRITE(contra_K007121_ctrl_1_w)
	AM_RANGE(0x0c00, 0x0cff) AM_WRITE(paletteram_xBBBBBGGGGGRRRRR_w) AM_BASE(&paletteram)
	AM_RANGE(0x1000, 0x1fff) AM_WRITE(MWA8_RAM)
	AM_RANGE(0x2000, 0x23ff) AM_WRITE(contra_fg_cram_w) AM_BASE(&contra_fg_cram)
	AM_RANGE(0x2400, 0x27ff) AM_WRITE(contra_fg_vram_w) AM_BASE(&contra_fg_vram)
	AM_RANGE(0x2800, 0x2bff) AM_WRITE(contra_text_cram_w) AM_BASE(&contra_text_cram)
	AM_RANGE(0x2c00, 0x2fff) AM_WRITE(contra_text_vram_w) AM_BASE(&contra_text_vram)
	AM_RANGE(0x3000, 0x37ff) AM_WRITE(MWA8_RAM) AM_BASE(&spriteram)/* 2nd bank is at 0x5000 */
	AM_RANGE(0x3800, 0x3fff) AM_WRITE(MWA8_RAM) /* second sprite buffer */
	AM_RANGE(0x4000, 0x43ff) AM_WRITE(contra_bg_cram_w) AM_BASE(&contra_bg_cram)
	AM_RANGE(0x4400, 0x47ff) AM_WRITE(contra_bg_vram_w) AM_BASE(&contra_bg_vram)
	AM_RANGE(0x4800, 0x5fff) AM_WRITE(MWA8_RAM)
	AM_RANGE(0x6000, 0x6fff) AM_WRITE(MWA8_ROM)
 	AM_RANGE(0x7000, 0x7000) AM_WRITE(contra_bankswitch_w)
	AM_RANGE(0x7001, 0xffff) AM_WRITE(MWA8_ROM)
ADDRESS_MAP_END

static ADDRESS_MAP_START( readmem_sound, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x0000, 0x0000) AM_READ(soundlatch_r)
	AM_RANGE(0x2001, 0x2001) AM_READ(YM2151_status_port_0_r)
	AM_RANGE(0x6000, 0x67ff) AM_READ(MRA8_RAM)
	AM_RANGE(0x8000, 0xffff) AM_READ(MRA8_ROM)
ADDRESS_MAP_END

static ADDRESS_MAP_START( writemem_sound, ADDRESS_SPACE_PROGRAM, 8 )
	AM_RANGE(0x2000, 0x2000) AM_WRITE(YM2151_register_port_0_w)
	AM_RANGE(0x2001, 0x2001) AM_WRITE(YM2151_data_port_0_w)
	AM_RANGE(0x4000, 0x4000) AM_WRITE(MWA8_NOP) /* read triggers irq reset and latch read (in the hardware only). */
	AM_RANGE(0x6000, 0x67ff) AM_WRITE(MWA8_RAM)
	AM_RANGE(0x8000, 0xffff) AM_WRITE(MWA8_ROM)
ADDRESS_MAP_END



INPUT_PORTS_START( contra )
	PORT_START	/* IN0 */
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN2 )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_COIN3 )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START1 )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_START2 )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )

	PORT_START	/* IN1 */
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )

	PORT_START	/* IN2 */
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(2)
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(2)
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(2)
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(2)
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2)
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2)
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )

	PORT_START	/* DSW0 */
	PORT_DIPNAME( 0x0f, 0x0f, DEF_STR( Coin_A ) )
	PORT_DIPSETTING(    0x02, DEF_STR( 4C_1C ) )
	PORT_DIPSETTING(    0x05, DEF_STR( 3C_1C ) )
	PORT_DIPSETTING(    0x08, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x04, DEF_STR( 3C_2C ) )
	PORT_DIPSETTING(    0x01, DEF_STR( 4C_3C ) )
	PORT_DIPSETTING(    0x0f, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x03, DEF_STR( 3C_4C ) )
	PORT_DIPSETTING(    0x07, DEF_STR( 2C_3C ) )
	PORT_DIPSETTING(    0x0e, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0x06, DEF_STR( 2C_5C ) )
	PORT_DIPSETTING(    0x0d, DEF_STR( 1C_3C ) )
	PORT_DIPSETTING(    0x0c, DEF_STR( 1C_4C ) )
	PORT_DIPSETTING(    0x0b, DEF_STR( 1C_5C ) )
	PORT_DIPSETTING(    0x0a, DEF_STR( 1C_6C ) )
	PORT_DIPSETTING(    0x09, DEF_STR( 1C_7C ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Free_Play ) )
	PORT_DIPNAME( 0xf0, 0xf0, DEF_STR( Coin_B ) )
	PORT_DIPSETTING(    0x20, DEF_STR( 4C_1C ) )
	PORT_DIPSETTING(    0x50, DEF_STR( 3C_1C ) )
	PORT_DIPSETTING(    0x80, DEF_STR( 2C_1C ) )
	PORT_DIPSETTING(    0x40, DEF_STR( 3C_2C ) )
	PORT_DIPSETTING(    0x10, DEF_STR( 4C_3C ) )
	PORT_DIPSETTING(    0xf0, DEF_STR( 1C_1C ) )
	PORT_DIPSETTING(    0x30, DEF_STR( 3C_4C ) )
	PORT_DIPSETTING(    0x70, DEF_STR( 2C_3C ) )
	PORT_DIPSETTING(    0xe0, DEF_STR( 1C_2C ) )
	PORT_DIPSETTING(    0x60, DEF_STR( 2C_5C ) )
	PORT_DIPSETTING(    0xd0, DEF_STR( 1C_3C ) )
	PORT_DIPSETTING(    0xc0, DEF_STR( 1C_4C ) )
	PORT_DIPSETTING(    0xb0, DEF_STR( 1C_5C ) )
	PORT_DIPSETTING(    0xa0, DEF_STR( 1C_6C ) )
	PORT_DIPSETTING(    0x90, DEF_STR( 1C_7C ) )/*marvins.c */
	/* 0x00 is invalid */

	PORT_START	/* DSW1 */
	PORT_DIPNAME( 0x03, 0x02, DEF_STR( Lives ) )
	PORT_DIPSETTING(    0x03, "2" )
	PORT_DIPSETTING(    0x02, "3" )
	PORT_DIPSETTING(    0x01, "5" )
	PORT_DIPSETTING(    0x00, "7" )
	PORT_DIPNAME( 0x04, 0x00, DEF_STR( Cabinet ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Upright ) )
	PORT_DIPSETTING(    0x04, DEF_STR( Cocktail ) )
	PORT_DIPNAME( 0x18, 0x18, DEF_STR( Bonus_Life ) )
	PORT_DIPSETTING(    0x18, "30000 70000" )
	PORT_DIPSETTING(    0x10, "40000 80000" )
	PORT_DIPSETTING(    0x08, "40000" )
	PORT_DIPSETTING(    0x00, "50000" )
	PORT_DIPNAME( 0x60, 0x60, DEF_STR( Difficulty ) )
	PORT_DIPSETTING(    0x60, DEF_STR( Easy ) )
	PORT_DIPSETTING(    0x40, DEF_STR( Normal ) )
	PORT_DIPSETTING(    0x20, DEF_STR( Hard ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Hardest ) )
	PORT_DIPNAME( 0x80, 0x00, DEF_STR( Demo_Sounds ) )
	PORT_DIPSETTING(    0x80, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x00, DEF_STR( On ) )

	PORT_START	/* DSW2 */
	PORT_DIPNAME( 0x01, 0x01, DEF_STR( Flip_Screen ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Off ) )
	PORT_DIPSETTING(    0x01, DEF_STR( On ) )
	PORT_DIPNAME( 0x02, 0x02, "Upright Controls" )
	PORT_DIPSETTING(    0x02, DEF_STR( Single ) )
	PORT_DIPSETTING(    0x00, DEF_STR( Dual ) )
	PORT_SERVICE( 0x04, IP_ACTIVE_LOW )
	PORT_DIPNAME( 0x08, 0x08, "Sound" )
	PORT_DIPSETTING(    0x00, DEF_STR( Mono ) )
	PORT_DIPSETTING(    0x08, DEF_STR( Stereo ) )
INPUT_PORTS_END



static struct GfxLayout gfx_layout =
{
	8,8,
	0x4000,
	4,
	{ 0, 1, 2, 3 },
	{ 0, 4, 8, 12, 16, 20, 24, 28 },
	{ 0*32, 1*32, 2*32, 3*32, 4*32, 5*32, 6*32, 7*32 },
	32*8
};

static struct GfxDecodeInfo gfxdecodeinfo[] =
{
	{ REGION_GFX1, 0, &gfx_layout,       0, 8*16 },
	{ REGION_GFX2, 0, &gfx_layout, 8*16*16, 8*16 },
	{ -1 }
};



static struct YM2151interface ym2151_interface =
{
	1,			/* 1 chip */
	3582071,	/* seems to be the standard */
	{ YM3012_VOL(60,MIXER_PAN_RIGHT,60,MIXER_PAN_LEFT) },
	{ 0 }
};



static MACHINE_DRIVER_START( contra )

	/* basic machine hardware */
 	MDRV_CPU_ADD(M6809, 1500000)
	MDRV_CPU_PROGRAM_MAP(readmem,writemem)
	MDRV_CPU_VBLANK_INT(irq0_line_hold,1)

 	MDRV_CPU_ADD(M6809, 2000000)
	MDRV_CPU_FLAGS(CPU_AUDIO_CPU)
	MDRV_CPU_PROGRAM_MAP(readmem_sound,writemem_sound)

	MDRV_FRAMES_PER_SECOND(60)
	MDRV_VBLANK_DURATION(DEFAULT_REAL_60HZ_VBLANK_DURATION)
	MDRV_INTERLEAVE(10)	/* 10 CPU slices per frame - enough for the sound CPU to read all commands */

	/* video hardware */
	MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER)
	MDRV_SCREEN_SIZE(37*8, 32*8)
	MDRV_VISIBLE_AREA(0*8, 35*8-1, 2*8, 30*8-1)
	MDRV_GFXDECODE(gfxdecodeinfo)
	MDRV_PALETTE_LENGTH(128)
	MDRV_COLORTABLE_LENGTH(2*8*16*16)

	MDRV_PALETTE_INIT(contra)
	MDRV_VIDEO_START(contra)
	MDRV_VIDEO_UPDATE(contra)

	/* sound hardware */
	MDRV_SOUND_ATTRIBUTES(SOUND_SUPPORTS_STEREO)
	MDRV_SOUND_ADD(YM2151, ym2151_interface)
MACHINE_DRIVER_END



#if 0
	/* bootleg versions use smaller gfx ROMs, but the data is the same */
	ROM_LOAD( "g-7.rom",      0x00000, 0x10000, CRC(57f467d2) )
	ROM_LOAD( "g-10.rom",     0x10000, 0x10000, CRC(e6db9685) )
	ROM_LOAD( "g-9.rom",      0x20000, 0x10000, CRC(875c61de) )
	ROM_LOAD( "g-8.rom",      0x30000, 0x10000, CRC(642765d6) )
	ROM_LOAD( "g-15.rom",     0x40000, 0x10000, CRC(daa2324b) )
	ROM_LOAD( "g-16.rom",     0x50000, 0x10000, CRC(e27cc835) )
	ROM_LOAD( "g-17.rom",     0x60000, 0x10000, CRC(ce4330b9) )
	ROM_LOAD( "g-18.rom",     0x70000, 0x10000, CRC(1571ce42) )
	ROM_LOAD( "g-4.rom",      0x80000, 0x10000, CRC(2cc7e52c) )
	ROM_LOAD( "g-5.rom",      0x90000, 0x10000, CRC(e01a5b9c) )
	ROM_LOAD( "g-6.rom",      0xa0000, 0x10000, CRC(aeea6744) )
	ROM_LOAD( "g-14.rom",     0xb0000, 0x10000, CRC(fca77c5a) )
	ROM_LOAD( "g-11.rom",     0xc0000, 0x10000, CRC(bd9ba92c) )
	ROM_LOAD( "g-12.rom",     0xd0000, 0x10000, CRC(d0be7ec2) )
	ROM_LOAD( "g-13.rom",     0xe0000, 0x10000, CRC(2b513d12) )
#endif


ROM_START( contra )
	ROM_REGION( 0x28000, REGION_CPU1, 0 )	/* 64k for code + 96k for banked ROMs */
	ROM_LOAD( "633e03.18a",   0x20000, 0x08000, CRC(7fc0d8cf) SHA1(cf1cf15646a4e5dc72671e957bc51ca44d30995c) )
	ROM_CONTINUE(			  0x08000, 0x08000 )
	ROM_LOAD( "633e02.17a",   0x10000, 0x10000, CRC(b2f7bd9a) SHA1(6c29568419bc49f0be3995b0c34edd9038f6f8d9) )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )	/* 64k for SOUND code */
	ROM_LOAD( "633e01.12a",   0x08000, 0x08000, CRC(d1549255) SHA1(d700c7de36746ba247e3a5d0410b7aa036aa4073) )

	ROM_REGION( 0x80000, REGION_GFX1, ROMREGION_DISPOSE )
	ROM_LOAD16_BYTE( "633e04.7d",    0x00000, 0x40000, CRC(14ddc542) SHA1(c7d8592672a6e50c2fe6b0670001c340022f16f9) )
	ROM_LOAD16_BYTE( "633e05.7f",    0x00001, 0x40000, CRC(42185044) SHA1(a6e2598d766e6995c1a912e4a04987e6f4d547ff) )

	ROM_REGION( 0x80000, REGION_GFX2, ROMREGION_DISPOSE )
	ROM_LOAD16_BYTE( "633e06.16d",   0x00000, 0x40000, CRC(9cf6faae) SHA1(9ab79c06cb541ce6fdac322886b8a14a2f3f5cf7) )
	ROM_LOAD16_BYTE( "633e07.16f",   0x00001, 0x40000, CRC(f2d06638) SHA1(0fa0fbfc53ab5c31b9de22f90153d9af37ff22ce) )

	ROM_REGION( 0x0400, REGION_PROMS, 0 )
	ROM_LOAD( "633e08.10g",   0x0000, 0x0100, CRC(9f0949fa) SHA1(7c8fefdcae4523d008a7d39062194c7a80aa3500) )	/* 007121 #0 sprite lookup table */
	ROM_LOAD( "633e09.12g",   0x0100, 0x0100, CRC(14ca5e19) SHA1(eeee2f8b3d1e4acf47de1e74c4e507ff924591e7) )	/* 007121 #0 char lookup table */
	ROM_LOAD( "633f10.18g",   0x0200, 0x0100, CRC(2b244d84) SHA1(c3bde7afb501bae58d07721c637dc06938c22150) )	/* 007121 #1 sprite lookup table */
	ROM_LOAD( "633f11.20g",   0x0300, 0x0100, CRC(14ca5e19) SHA1(eeee2f8b3d1e4acf47de1e74c4e507ff924591e7) )	/* 007121 #1 char lookup table */
ROM_END

ROM_START( contrab )
	ROM_REGION( 0x28000, REGION_CPU1, 0 )	/* 64k for code + 96k for banked ROMs */
	ROM_LOAD( "contra.20",    0x20000, 0x08000, CRC(d045e1da) SHA1(ec781e98a6efb14861223250c6239b06ec98ed0b) )
	ROM_CONTINUE(             0x08000, 0x08000 )
	ROM_LOAD( "633e02.17a",   0x10000, 0x10000, CRC(b2f7bd9a) SHA1(6c29568419bc49f0be3995b0c34edd9038f6f8d9) )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )	/* 64k for SOUND code */
	ROM_LOAD( "633e01.12a",   0x08000, 0x08000, CRC(d1549255) SHA1(d700c7de36746ba247e3a5d0410b7aa036aa4073) )

	ROM_REGION( 0x80000, REGION_GFX1, ROMREGION_DISPOSE )
	ROM_LOAD16_BYTE( "633e04.7d",    0x00000, 0x40000, CRC(14ddc542) SHA1(c7d8592672a6e50c2fe6b0670001c340022f16f9) )
	ROM_LOAD16_BYTE( "633e05.7f",    0x00001, 0x40000, CRC(42185044) SHA1(a6e2598d766e6995c1a912e4a04987e6f4d547ff) )

	ROM_REGION( 0x80000, REGION_GFX2, ROMREGION_DISPOSE )
	ROM_LOAD16_BYTE( "633e06.16d",   0x00000, 0x40000, CRC(9cf6faae) SHA1(9ab79c06cb541ce6fdac322886b8a14a2f3f5cf7) )
	ROM_LOAD16_BYTE( "633e07.16f",   0x00001, 0x40000, CRC(f2d06638) SHA1(0fa0fbfc53ab5c31b9de22f90153d9af37ff22ce) )

	ROM_REGION( 0x0500, REGION_PROMS, 0 )
	ROM_LOAD( "633e08.10g",   0x0000, 0x0100, CRC(9f0949fa) SHA1(7c8fefdcae4523d008a7d39062194c7a80aa3500) )	/* 007121 #0 sprite lookup table */
	ROM_LOAD( "633e09.12g",   0x0100, 0x0100, CRC(14ca5e19) SHA1(eeee2f8b3d1e4acf47de1e74c4e507ff924591e7) )	/* 007121 #0 char lookup table */
	ROM_LOAD( "633f10.18g",   0x0200, 0x0100, CRC(2b244d84) SHA1(c3bde7afb501bae58d07721c637dc06938c22150) )	/* 007121 #1 sprite lookup table */
	ROM_LOAD( "633f11.20g",   0x0300, 0x0100, CRC(14ca5e19) SHA1(eeee2f8b3d1e4acf47de1e74c4e507ff924591e7) )	/* 007121 #1 char lookup table */
	ROM_LOAD( "conprom.53",   0x0400, 0x0100, CRC(05a1da7e) SHA1(ec0bdfc9da05c99e6a283014769db6d641f1a0aa) )	/* unknown (only present in this bootleg) */
ROM_END

ROM_START( contraj )
	ROM_REGION( 0x28000, REGION_CPU1, 0 )	/* 64k for code + 96k for banked ROMs */
	ROM_LOAD( "633n03.18a",   0x20000, 0x08000, CRC(fedab568) SHA1(7fd4546335bdeef7f8326d4cbde7fa36d74e5cfc) )
	ROM_CONTINUE(             0x08000, 0x08000 )
	ROM_LOAD( "633k02.17a",   0x10000, 0x10000, CRC(5d5f7438) SHA1(489fe56ca57ef4f6a7792fba07a9656009f3f285) )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )	/* 64k for SOUND code */
	ROM_LOAD( "633e01.12a",   0x08000, 0x08000, CRC(d1549255) SHA1(d700c7de36746ba247e3a5d0410b7aa036aa4073) )

	ROM_REGION( 0x80000, REGION_GFX1, ROMREGION_DISPOSE )
	ROM_LOAD16_BYTE( "633e04.7d",    0x00000, 0x40000, CRC(14ddc542) SHA1(c7d8592672a6e50c2fe6b0670001c340022f16f9) )
	ROM_LOAD16_BYTE( "633e05.7f",    0x00001, 0x40000, CRC(42185044) SHA1(a6e2598d766e6995c1a912e4a04987e6f4d547ff) )

	ROM_REGION( 0x80000, REGION_GFX2, ROMREGION_DISPOSE )
	ROM_LOAD16_BYTE( "633e06.16d",   0x00000, 0x40000, CRC(9cf6faae) SHA1(9ab79c06cb541ce6fdac322886b8a14a2f3f5cf7) )
	ROM_LOAD16_BYTE( "633e07.16f",   0x00001, 0x40000, CRC(f2d06638) SHA1(0fa0fbfc53ab5c31b9de22f90153d9af37ff22ce) )

	ROM_REGION( 0x0400, REGION_PROMS, 0 )
	ROM_LOAD( "633e08.10g",   0x0000, 0x0100, CRC(9f0949fa) SHA1(7c8fefdcae4523d008a7d39062194c7a80aa3500) )	/* 007121 #0 sprite lookup table */
	ROM_LOAD( "633e09.12g",   0x0100, 0x0100, CRC(14ca5e19) SHA1(eeee2f8b3d1e4acf47de1e74c4e507ff924591e7) )	/* 007121 #0 char lookup table */
	ROM_LOAD( "633f10.18g",   0x0200, 0x0100, CRC(2b244d84) SHA1(c3bde7afb501bae58d07721c637dc06938c22150) )	/* 007121 #1 sprite lookup table */
	ROM_LOAD( "633f11.20g",   0x0300, 0x0100, CRC(14ca5e19) SHA1(eeee2f8b3d1e4acf47de1e74c4e507ff924591e7) )	/* 007121 #1 char lookup table */
ROM_END

ROM_START( contrajb )
	ROM_REGION( 0x28000, REGION_CPU1, 0 )	/* 64k for code + 96k for banked ROMs */
	ROM_LOAD( "g-2.rom",      0x20000, 0x08000, CRC(bdb9196d) SHA1(fad170e8fda94c9c9d7b82433daa30b80af12efc) )
	ROM_CONTINUE(             0x08000, 0x08000 )
	ROM_LOAD( "633k02.17a",   0x10000, 0x10000, CRC(5d5f7438) SHA1(489fe56ca57ef4f6a7792fba07a9656009f3f285) )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )	/* 64k for SOUND code */
	ROM_LOAD( "633e01.12a",   0x08000, 0x08000, CRC(d1549255) SHA1(d700c7de36746ba247e3a5d0410b7aa036aa4073) )

	ROM_REGION( 0x80000, REGION_GFX1, ROMREGION_DISPOSE )
	ROM_LOAD16_BYTE( "633e04.7d",    0x00000, 0x40000, CRC(14ddc542) SHA1(c7d8592672a6e50c2fe6b0670001c340022f16f9) )
	ROM_LOAD16_BYTE( "633e05.7f",    0x00001, 0x40000, CRC(42185044) SHA1(a6e2598d766e6995c1a912e4a04987e6f4d547ff) )

	ROM_REGION( 0x80000, REGION_GFX2, ROMREGION_DISPOSE )
	ROM_LOAD16_BYTE( "633e06.16d",   0x00000, 0x40000, CRC(9cf6faae) SHA1(9ab79c06cb541ce6fdac322886b8a14a2f3f5cf7) )
	ROM_LOAD16_BYTE( "633e07.16f",   0x00001, 0x40000, CRC(f2d06638) SHA1(0fa0fbfc53ab5c31b9de22f90153d9af37ff22ce) )

	ROM_REGION( 0x0400, REGION_PROMS, 0 )
	ROM_LOAD( "633e08.10g",   0x0000, 0x0100, CRC(9f0949fa) SHA1(7c8fefdcae4523d008a7d39062194c7a80aa3500) )	/* 007121 #0 sprite lookup table */
	ROM_LOAD( "633e09.12g",   0x0100, 0x0100, CRC(14ca5e19) SHA1(eeee2f8b3d1e4acf47de1e74c4e507ff924591e7) )	/* 007121 #0 char lookup table */
	ROM_LOAD( "633f10.18g",   0x0200, 0x0100, CRC(2b244d84) SHA1(c3bde7afb501bae58d07721c637dc06938c22150) )	/* 007121 #1 sprite lookup table */
	ROM_LOAD( "633f11.20g",   0x0300, 0x0100, CRC(14ca5e19) SHA1(eeee2f8b3d1e4acf47de1e74c4e507ff924591e7) )	/* 007121 #1 char lookup table */
ROM_END

ROM_START( gryzor )
	ROM_REGION( 0x28000, REGION_CPU1, 0 )	/* 64k for code + 96k for banked ROMs */
	ROM_LOAD( "g2",           0x20000, 0x08000, CRC(92ca77bd) SHA1(3a56f51a617edff9f2a60df0141dff040881b82a) )
	ROM_CONTINUE(             0x08000, 0x08000 )
	ROM_LOAD( "g3",           0x10000, 0x10000, CRC(bbd9e95e) SHA1(fd5de1bcc485de7b8fc2e321351c2e3ddd25d053) )

	ROM_REGION( 0x10000, REGION_CPU2, 0 )	/* 64k for SOUND code */
	ROM_LOAD( "633e01.12a",   0x08000, 0x08000, CRC(d1549255) SHA1(d700c7de36746ba247e3a5d0410b7aa036aa4073) )

	ROM_REGION( 0x80000, REGION_GFX1, ROMREGION_DISPOSE )
	ROM_LOAD16_BYTE( "633e04.7d",    0x00000, 0x40000, CRC(14ddc542) SHA1(c7d8592672a6e50c2fe6b0670001c340022f16f9) )
	ROM_LOAD16_BYTE( "633e05.7f",    0x00001, 0x40000, CRC(42185044) SHA1(a6e2598d766e6995c1a912e4a04987e6f4d547ff) )

	ROM_REGION( 0x80000, REGION_GFX2, ROMREGION_DISPOSE )
	ROM_LOAD16_BYTE( "633e06.16d",   0x00000, 0x40000, CRC(9cf6faae) SHA1(9ab79c06cb541ce6fdac322886b8a14a2f3f5cf7) )
	ROM_LOAD16_BYTE( "633e07.16f",   0x00001, 0x40000, CRC(f2d06638) SHA1(0fa0fbfc53ab5c31b9de22f90153d9af37ff22ce) )

	ROM_REGION( 0x0400, REGION_PROMS, 0 )
	ROM_LOAD( "633e08.10g",   0x0000, 0x0100, CRC(9f0949fa) SHA1(7c8fefdcae4523d008a7d39062194c7a80aa3500) )	/* 007121 #0 sprite lookup table */
	ROM_LOAD( "633e09.12g",   0x0100, 0x0100, CRC(14ca5e19) SHA1(eeee2f8b3d1e4acf47de1e74c4e507ff924591e7) )	/* 007121 #0 char lookup table */
	ROM_LOAD( "633f10.18g",   0x0200, 0x0100, CRC(2b244d84) SHA1(c3bde7afb501bae58d07721c637dc06938c22150) )	/* 007121 #1 sprite lookup table */
	ROM_LOAD( "633f11.20g",   0x0300, 0x0100, CRC(14ca5e19) SHA1(eeee2f8b3d1e4acf47de1e74c4e507ff924591e7) )	/* 007121 #1 char lookup table */
ROM_END



GAME( 1987, contra,   0,      contra, contra, 0, ROT90, "Konami", "Contra (US)" )
GAME( 1987, contrab,  contra, contra, contra, 0, ROT90, "bootleg", "Contra (US bootleg)" )
GAME( 1987, contraj,  contra, contra, contra, 0, ROT90, "Konami", "Contra (Japan)" )
GAME( 1987, contrajb, contra, contra, contra, 0, ROT90, "bootleg", "Contra (Japan bootleg)" )
GAME( 1987, gryzor,   contra, contra, contra, 0, ROT90, "Konami", "Gryzor" )
