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AmigActive 10
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AACD 10.iso
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gundealr.c
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C/C++ Source or Header
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2000-04-23
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17KB
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519 lines
/***************************************************************************
Gun Dealer memory map
driver by Nicola Salmoria
Yam! Yam!? runs on the same hardware but has a protection device which can
access RAM at e000. Program writes to e000 and expects a value back
at e001, then jumps to subroutines at e010 and e020. Also, the
player and coin inputs appear magically at e004-e006.
0000-7fff ROM
8000-bfff ROM (banked)
c400-c7ff palette RAM
c800-cfff background video RAM
d000-dfff foreground (scrollable) video RAM.
e000-ffff work RAM
read:
c000 DSW0
c001 DSW1
c004 COIN (Gun Dealer only)
c005 IN1 (Gun Dealer only)
c006 IN0 (Gun Dealer only)
write:
c010-c011 foreground scroll x lo-hi (Yam Yam)
c012-c013 foreground scroll y lo-hi (Yam Yam)
c014 flip screen
c015 Yam Yam only, maybe reset protection device
c016 ROM bank selector
c020-c021 foreground scroll x hi-lo (Gun Dealer)
c022-c023 foreground scroll y hi-lo (Gun Dealer)
I/O:
read:
01 YM2203 read
write:
00 YM2203 control
01 YM2203 write
Interrupts:
Runs in interrupt mode 0, the interrupt vectors are 0xcf (RST 08h) and
0xd7 (RST 10h)
***************************************************************************/
#include "driver.h"
extern unsigned char *gundealr_bg_videoram,*gundealr_fg_videoram;
WRITE_HANDLER( gundealr_paletteram_w );
WRITE_HANDLER( gundealr_bg_videoram_w );
WRITE_HANDLER( gundealr_fg_videoram_w );
WRITE_HANDLER( gundealr_fg_scroll_w );
WRITE_HANDLER( yamyam_fg_scroll_w );
WRITE_HANDLER( gundealr_flipscreen_w );
void gundealr_vh_screenrefresh(struct osd_bitmap *bitmap,int full_refresh);
int gundealr_vh_start(void);
static int input_ports_hack;
static int yamyam_interrupt(void)
{
if (cpu_getiloops() == 0)
{
if (input_ports_hack)
{
unsigned char *RAM = memory_region(REGION_CPU1);
RAM[0xe004] = readinputport(4); /* COIN */
RAM[0xe005] = readinputport(3); /* IN1 */
RAM[0xe006] = readinputport(2); /* IN0 */
}
return 0xd7; /* RST 10h vblank */
}
if ((cpu_getiloops() & 1) == 1) return 0xcf; /* RST 08h sound (hand tuned) */
else return ignore_interrupt();
}
static WRITE_HANDLER( yamyam_bankswitch_w )
{
int bankaddress;
unsigned char *RAM = memory_region(REGION_CPU1);
bankaddress = 0x10000 + (data & 0x07) * 0x4000;
cpu_setbank(1,&RAM[bankaddress]);
}
static WRITE_HANDLER( yamyam_protection_w )
{
unsigned char *RAM = memory_region(REGION_CPU1);
logerror("e000 = %02x\n",RAM[0xe000]);
RAM[0xe000] = data;
if (data == 0x03) RAM[0xe001] = 0x03;
if (data == 0x04) RAM[0xe001] = 0x04;
if (data == 0x05) RAM[0xe001] = 0x05;
if (data == 0x0a) RAM[0xe001] = 0x08;
if (data == 0x0d) RAM[0xe001] = 0x07;
if (data == 0x03)
{
/*
read dip switches
3a 00 c0 ld a,($c000)
47 ld b,a
3a 01 c0 ld a,($c001)
c9 ret
*/
RAM[0xe010] = 0x3a;
RAM[0xe011] = 0x00;
RAM[0xe012] = 0xc0;
RAM[0xe013] = 0x47;
RAM[0xe014] = 0x3a;
RAM[0xe015] = 0x01;
RAM[0xe016] = 0xc0;
RAM[0xe017] = 0xc9;
}
if (data == 0x05)
{
/*
add a to hl
c5 push bc
010000 ld bc,#0000
4f ld c,a
09 add hl,bc
c1 pop bc
c9 ret
*/
RAM[0xe020] = 0xc5;
RAM[0xe021] = 0x01;
RAM[0xe022] = 0x00;
RAM[0xe023] = 0x00;
RAM[0xe024] = 0x4f;
RAM[0xe025] = 0x09;
RAM[0xe026] = 0xc1;
RAM[0xe027] = 0xc9;
/*
lookup data in table
cd20e0 call #e020
7e ld a,(hl)
c9 ret
*/
RAM[0xe010] = 0xcd;
RAM[0xe011] = 0x20;
RAM[0xe012] = 0xe0;
RAM[0xe013] = 0x7e;
RAM[0xe014] = 0xc9;
}
}
static void init_gundealr(void)
{
input_ports_hack = 0;
}
static void init_yamyam(void)
{
input_ports_hack = 1;
install_mem_write_handler(0, 0xe000, 0xe000, yamyam_protection_w);
}
static struct MemoryReadAddress readmem[] =
{
{ 0x0000, 0x7fff, MRA_ROM },
{ 0x8000, 0xbfff, MRA_BANK1 },
{ 0xc000, 0xc000, input_port_0_r }, /* DSW0 */
{ 0xc001, 0xc001, input_port_1_r }, /* DSW1 */
{ 0xc004, 0xc004, input_port_2_r }, /* COIN (Gun Dealer only) */
{ 0xc005, 0xc005, input_port_3_r }, /* IN1 (Gun Dealer only) */
{ 0xc006, 0xc006, input_port_4_r }, /* IN0 (Gun Dealer only) */
{ 0xc400, 0xffff, MRA_RAM },
{ -1 } /* end of table */
};
static struct MemoryWriteAddress writemem[] =
{
{ 0x0000, 0xbfff, MWA_ROM },
{ 0xc010, 0xc013, yamyam_fg_scroll_w }, /* Yam Yam only */
{ 0xc014, 0xc014, gundealr_flipscreen_w },
{ 0xc016, 0xc016, yamyam_bankswitch_w },
{ 0xc020, 0xc023, gundealr_fg_scroll_w }, /* Gun Dealer only */
{ 0xc400, 0xc7ff, gundealr_paletteram_w, &paletteram },
{ 0xc800, 0xcfff, gundealr_bg_videoram_w, &gundealr_bg_videoram },
{ 0xd000, 0xdfff, gundealr_fg_videoram_w, &gundealr_fg_videoram },
{ 0xe000, 0xffff, MWA_RAM },
{ -1 } /* end of table */
};
static struct IOReadPort readport[] =
{
{ 0x01, 0x01, YM2203_read_port_0_r },
{ -1 } /* end of table */
};
static struct IOWritePort writeport[] =
{
{ 0x00, 0x00, YM2203_control_port_0_w },
{ 0x01, 0x01, YM2203_write_port_0_w },
{ -1 } /* end of table */
};
INPUT_PORTS_START( gundealr )
PORT_START /* DSW0 */
PORT_DIPNAME( 0x01, 0x01, DEF_STR( Unknown ) )
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( 0x0c, 0x0c, DEF_STR( Difficulty ) )
PORT_DIPSETTING( 0x0c, "Easy" )
PORT_DIPSETTING( 0x08, "Medium" )
PORT_DIPSETTING( 0x04, "Hard" )
PORT_DIPSETTING( 0x00, "Hardest" )
PORT_DIPNAME( 0x10, 0x00, DEF_STR( Demo_Sounds ) )
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, 0x00, DEF_STR( Cabinet ) )
PORT_DIPSETTING( 0x00, DEF_STR( Upright ) )
PORT_DIPSETTING( 0x40, DEF_STR( Cocktail ) )
PORT_DIPNAME( 0x80, 0x00, DEF_STR( Flip_Screen ) )
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x80, DEF_STR( On ) )
PORT_START /* DSW1 */
PORT_DIPNAME( 0x07, 0x07, DEF_STR( Coin_A ) )
PORT_DIPSETTING( 0x00, DEF_STR( 5C_1C ) )
PORT_DIPSETTING( 0x01, DEF_STR( 4C_1C ) )
PORT_DIPSETTING( 0x02, DEF_STR( 3C_1C ) )
PORT_DIPSETTING( 0x03, DEF_STR( 2C_1C ) )
PORT_DIPSETTING( 0x07, DEF_STR( 1C_1C ) )
PORT_DIPSETTING( 0x06, DEF_STR( 1C_2C ) )
PORT_DIPSETTING( 0x05, DEF_STR( 1C_3C ) )
PORT_DIPSETTING( 0x04, DEF_STR( 1C_4C ) )
PORT_DIPNAME( 0x38, 0x38, DEF_STR( Coin_B ) )
PORT_DIPSETTING( 0x00, DEF_STR( 5C_1C ) )
PORT_DIPSETTING( 0x08, DEF_STR( 4C_1C ) )
PORT_DIPSETTING( 0x10, DEF_STR( 3C_1C ) )
PORT_DIPSETTING( 0x18, DEF_STR( 2C_1C ) )
PORT_DIPSETTING( 0x38, DEF_STR( 1C_1C ) )
PORT_DIPSETTING( 0x30, DEF_STR( 1C_2C ) )
PORT_DIPSETTING( 0x28, DEF_STR( 1C_3C ) )
PORT_DIPSETTING( 0x20, DEF_STR( 1C_4C ) )
PORT_DIPNAME( 0xc0, 0xc0, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x00, "0" )
PORT_DIPSETTING( 0x40, "1" )
PORT_DIPSETTING( 0x80, "2" )
PORT_DIPSETTING( 0xc0, "3" )
PORT_START /* COIN */
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_RIGHT | IPF_4WAY | IPF_PLAYER2 )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_4WAY | IPF_PLAYER2 )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_4WAY | IPF_PLAYER2 )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_4WAY | IPF_PLAYER2 )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 | IPF_PLAYER2 )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 | IPF_PLAYER2 )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* probably unused */
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* probably unused */
PORT_START /* IN0 */
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_4WAY | IPF_PLAYER1 )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_4WAY | IPF_PLAYER1 )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_4WAY | IPF_PLAYER1 )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_4WAY | IPF_PLAYER1 )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 | IPF_PLAYER1 )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 | IPF_PLAYER1 )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* probably unused */
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* probably unused */
INPUT_PORTS_END
INPUT_PORTS_START( yamyam )
PORT_START /* DSW0 */
PORT_DIPNAME( 0x03, 0x00, DEF_STR( Lives ) )
PORT_DIPSETTING( 0x00, "3" )
PORT_DIPSETTING( 0x01, "4" )
PORT_DIPSETTING( 0x02, "5" )
PORT_DIPSETTING( 0x03, "6" )
PORT_DIPNAME( 0x0c, 0x00, "Difficulty?" )
PORT_DIPSETTING( 0x00, "Easy?" )
PORT_DIPSETTING( 0x04, "Medium?" )
PORT_DIPSETTING( 0x08, "Hard?" )
PORT_DIPSETTING( 0x0c, "Hardest?" )
PORT_DIPNAME( 0x10, 0x00, DEF_STR( Demo_Sounds ) )
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( Cabinet ) )
PORT_DIPSETTING( 0x40, DEF_STR( Upright ) )
PORT_DIPSETTING( 0x00, DEF_STR( Cocktail ) )
PORT_DIPNAME( 0x80, 0x00, DEF_STR( Flip_Screen ) )
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x80, DEF_STR( On ) )
PORT_START /* DSW1 */
PORT_DIPNAME( 0x07, 0x00, DEF_STR( Coin_A ) )
PORT_DIPSETTING( 0x07, DEF_STR( 5C_1C ) )
PORT_DIPSETTING( 0x06, DEF_STR( 4C_1C ) )
PORT_DIPSETTING( 0x05, DEF_STR( 3C_1C ) )
PORT_DIPSETTING( 0x04, DEF_STR( 2C_1C ) )
/* PORT_DIPSETTING( 0x03, DEF_STR( 1C_1C ) ) */
/* PORT_DIPSETTING( 0x02, DEF_STR( 1C_1C ) ) */
/* PORT_DIPSETTING( 0x01, DEF_STR( 1C_1C ) ) */
PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C ) )
PORT_DIPNAME( 0x38, 0x00, DEF_STR( Coin_B ) )
PORT_DIPSETTING( 0x38, DEF_STR( 5C_1C ) )
PORT_DIPSETTING( 0x30, DEF_STR( 4C_1C ) )
PORT_DIPSETTING( 0x28, DEF_STR( 3C_1C ) )
PORT_DIPSETTING( 0x20, DEF_STR( 2C_1C ) )
/* PORT_DIPSETTING( 0x18, DEF_STR( 1C_1C ) ) */
/* PORT_DIPSETTING( 0x10, DEF_STR( 1C_1C ) ) */
/* PORT_DIPSETTING( 0x08, DEF_STR( 1C_1C ) ) */
PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C ) )
PORT_DIPNAME( 0x40, 0x00, DEF_STR( Free_Play ) )
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x40, DEF_STR( On ) )
PORT_SERVICE( 0x80, IP_ACTIVE_LOW )
PORT_START /* COIN */
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_TILT ) /* "TEST" */
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_RIGHT | IPF_4WAY | IPF_PLAYER2 )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_4WAY | IPF_PLAYER2 )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_4WAY | IPF_PLAYER2 )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_4WAY | IPF_PLAYER2 )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 | IPF_PLAYER2 )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 | IPF_PLAYER2 )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* probably unused */
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* probably unused */
PORT_START /* IN0 */
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_4WAY | IPF_PLAYER1 )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_4WAY | IPF_PLAYER1 )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_4WAY | IPF_PLAYER1 )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_4WAY | IPF_PLAYER1 )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 | IPF_PLAYER1 )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 | IPF_PLAYER1 )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* probably unused */
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* probably unused */
INPUT_PORTS_END
static struct GfxLayout charlayout =
{
8,8, /* 8*8 characters */
2048, /* 2048 characters */
4, /* 4 bits per pixel */
{ 0, 1, 2, 3 },
{ 0*4, 1*4, 2*4, 3*4, 4*4, 5*4, 6*4, 7*4 },
{ 0*32, 1*32, 2*32, 3*32, 4*32, 5*32, 6*32, 7*32 },
32*8 /* every char takes 32 consecutive bytes */
};
static struct GfxLayout spritelayout =
{
16,16, /* 16*16 sprites */
1024, /* 1024 sprites */
4, /* 4 bits per pixel */
{ 0, 1, 2, 3 },
{ 0*4, 1*4, 2*4, 3*4, 4*4, 5*4, 6*4, 7*4,
16*32+0*4, 16*32+1*4, 16*32+2*4, 16*32+3*4, 16*32+4*4, 16*32+5*4, 16*32+6*4, 16*32+7*4 },
{ 0*32, 1*32, 2*32, 3*32, 4*32, 5*32, 6*32, 7*32,
8*32, 9*32, 10*32, 11*32, 12*32, 13*32, 14*32, 15*32 },
128*8 /* every sprite takes 128 consecutive bytes */
};
static struct GfxDecodeInfo gfxdecodeinfo[] =
{
{ REGION_GFX1, 0, &charlayout, 0, 16 }, /* colors 0-255 */
{ REGION_GFX2, 0, &spritelayout, 256, 16 }, /* colors 256-511 */
{ -1 } /* end of array */
};
static struct YM2203interface ym2203_interface =
{
1, /* 1 chip */
1500000, /* 1.5 MHz ?????? */
{ YM2203_VOL(25,25) },
{ 0 },
{ 0 },
{ 0 },
{ 0 }
};
static struct MachineDriver machine_driver_gundealr =
{
/* basic machine hardware */
{
{
CPU_Z80,
8000000, /* 8 Mhz ??? */
readmem,writemem,readport,writeport,
yamyam_interrupt,4 /* ? */
}
},
60, DEFAULT_60HZ_VBLANK_DURATION, /* frames per second, vblank duration */
1, /* single CPU, no need for interleaving */
0,
/* video hardware */
32*8, 32*8, { 0*8, 32*8-1, 2*8, 30*8-1 },
gfxdecodeinfo,
512, 512,
0,
VIDEO_TYPE_RASTER | VIDEO_MODIFIES_PALETTE,
0,
gundealr_vh_start,
0,
gundealr_vh_screenrefresh,
/* sound hardware */
0,0,0,0,
{
{
SOUND_YM2203,
&ym2203_interface
}
}
};
/***************************************************************************
Game driver(s)
***************************************************************************/
ROM_START( gundealr )
ROM_REGION( 0x30000, REGION_CPU1 ) /* 64k for code + 128k for banks */
ROM_LOAD( "gundealr.1", 0x00000, 0x10000, 0x5797e830 )
ROM_RELOAD( 0x10000, 0x10000 ) /* banked at 0x8000-0xbfff */
ROM_REGION( 0x10000, REGION_GFX1 | REGIONFLAG_DISPOSE )
ROM_LOAD( "gundealr.3", 0x00000, 0x10000, 0x01f99de2 )
ROM_REGION( 0x20000, REGION_GFX2 | REGIONFLAG_DISPOSE )
ROM_LOAD( "gundealr.2", 0x00000, 0x20000, 0x7874ec41 )
ROM_END
ROM_START( gundeala )
ROM_REGION( 0x30000, REGION_CPU1 ) /* 64k for code + 128k for banks */
ROM_LOAD( "gundeala.1", 0x00000, 0x10000, 0xd87e24f1 )
ROM_RELOAD( 0x10000, 0x10000 ) /* banked at 0x8000-0xbfff */
ROM_REGION( 0x10000, REGION_GFX1 | REGIONFLAG_DISPOSE )
ROM_LOAD( "gundeala.3", 0x00000, 0x10000, 0x836cf1a3 )
ROM_REGION( 0x20000, REGION_GFX2 | REGIONFLAG_DISPOSE )
ROM_LOAD( "gundeala.2", 0x00000, 0x20000, 0x4b5fb53c )
ROM_END
ROM_START( yamyam )
ROM_REGION( 0x30000, REGION_CPU1 ) /* 64k for code + 128k for banks */
ROM_LOAD( "b3.f10", 0x00000, 0x20000, 0x96ae9088 )
ROM_RELOAD( 0x10000, 0x20000 ) /* banked at 0x8000-0xbfff */
ROM_REGION( 0x10000, REGION_GFX1 | REGIONFLAG_DISPOSE )
ROM_LOAD( "b2.d16", 0x00000, 0x10000, 0xcb4f84ee )
ROM_REGION( 0x20000, REGION_GFX2 | REGIONFLAG_DISPOSE )
ROM_LOAD( "b1.a16", 0x00000, 0x20000, 0xb122828d )
ROM_END
/* only gfx are different, code is the same */
ROM_START( wiseguy )
ROM_REGION( 0x30000, REGION_CPU1 ) /* 64k for code + 128k for banks */
ROM_LOAD( "b3.f10", 0x00000, 0x20000, 0x96ae9088 )
ROM_RELOAD( 0x10000, 0x20000 ) /* banked at 0x8000-0xbfff */
ROM_REGION( 0x10000, REGION_GFX1 | REGIONFLAG_DISPOSE )
ROM_LOAD( "wguyb2.bin", 0x00000, 0x10000, 0x1c684c46 )
ROM_REGION( 0x20000, REGION_GFX2 | REGIONFLAG_DISPOSE )
ROM_LOAD( "b1.a16", 0x00000, 0x20000, 0xb122828d )
ROM_END
GAME( 1990, gundealr, 0, gundealr, gundealr, gundealr, ROT270, "Dooyong", "Gun Dealer (set 1)" )
GAME( ????, gundeala, gundealr, gundealr, gundealr, gundealr, ROT270, "Dooyong", "Gun Dealer (set 2)" )
GAME( 1990, yamyam, 0, gundealr, yamyam, yamyam, ROT0, "Dooyong", "Yam! Yam!?" )
GAME( 1990, wiseguy, yamyam, gundealr, yamyam, yamyam, ROT0, "Dooyong", "Wise Guy" )