nemesis.c

这个是延伸mame的在wince平台下的游戏模拟器的代码

	PORT_BITX(    0x04, 0x04, IPT_DIPSWITCH_NAME | IPF_TOGGLE, "Service Mode", OSD_KEY_F2, IP_JOY_NONE, 0 )
	PORT_DIPSETTING(    0x04, "Off" )
	PORT_DIPSETTING(    0x00, "On" )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN )
	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	/* DSW0 */
	PORT_DIPNAME( 0x0f, 0x0f, "Coin A", IP_KEY_NONE )
	PORT_DIPSETTING(    0x02, "4 Coins/1 Credit" )
	PORT_DIPSETTING(    0x05, "3 Coins/1 Credit" )
	PORT_DIPSETTING(    0x08, "2 Coins/1 Credit" )
	PORT_DIPSETTING(    0x04, "3 Coins/2 Credits" )
	PORT_DIPSETTING(    0x01, "4 Coins/3 Credits" )
	PORT_DIPSETTING(    0x0f, "1 Coin/1 Credit" )
	PORT_DIPSETTING(    0x03, "3 Coins/4 Credits" )
	PORT_DIPSETTING(    0x07, "2 Coins/3 Credits" )
	PORT_DIPSETTING(    0x0e, "1 Coin/2 Credits" )
	PORT_DIPSETTING(    0x06, "2 Coins/5 Credits" )
	PORT_DIPSETTING(    0x0d, "1 Coin/3 Credits" )
	PORT_DIPSETTING(    0x0c, "1 Coin/4 Credits" )
	PORT_DIPSETTING(    0x0b, "1 Coin/5 Credits" )
	PORT_DIPSETTING(    0x0a, "1 Coin/6 Credits" )
	PORT_DIPSETTING(    0x09, "1 Coin/7 Credits" )
	PORT_DIPSETTING(    0x00, "Free Play" )
	PORT_DIPNAME( 0xf0, 0xf0, "Coin B", IP_KEY_NONE )
	PORT_DIPSETTING(    0x20, "4 Coins/1 Credit" )
	PORT_DIPSETTING(    0x50, "3 Coins/1 Credit" )
	PORT_DIPSETTING(    0x80, "2 Coins/1 Credit" )
	PORT_DIPSETTING(    0x40, "3 Coins/2 Credits" )
	PORT_DIPSETTING(    0x10, "4 Coins/3 Credits" )
	PORT_DIPSETTING(    0xf0, "1 Coin/1 Credit" )
	PORT_DIPSETTING(    0x30, "3 Coins/4 Credits" )
	PORT_DIPSETTING(    0x70, "2 Coins/3 Credits" )
	PORT_DIPSETTING(    0xe0, "1 Coin/2 Credits" )
	PORT_DIPSETTING(    0x60, "2 Coins/5 Credits" )
	PORT_DIPSETTING(    0xd0, "1 Coin/3 Credits" )
	PORT_DIPSETTING(    0xc0, "1 Coin/4 Credits" )
	PORT_DIPSETTING(    0xb0, "1 Coin/5 Credits" )
	PORT_DIPSETTING(    0xa0, "1 Coin/6 Credits" )
	PORT_DIPSETTING(    0x90, "1 Coin/7 Credits" )
	PORT_DIPSETTING(    0x00, "Disable" )

	PORT_START	/* DSW1 */
	PORT_DIPNAME( 0x03, 0x01, "Lives", IP_KEY_NONE )
	PORT_DIPSETTING(    0x03, "1" )
	PORT_DIPSETTING(    0x02, "2" )
	PORT_DIPSETTING(    0x01, "3" )
	PORT_DIPSETTING(    0x00, "7" )
	PORT_DIPNAME( 0x04, 0x00, "Unknown", IP_KEY_NONE )
	PORT_DIPSETTING(    0x00, "On" )
	PORT_DIPSETTING(    0x04, "Off" )
	PORT_DIPNAME( 0x18, 0x18, "Bonus Life", IP_KEY_NONE )
	PORT_DIPSETTING(    0x18, "30k and every 70k" )
	PORT_DIPSETTING(    0x10, "40k and every 80k" )
	PORT_DIPSETTING(    0x08, "50k and every 100k" )
	PORT_DIPSETTING(    0x00, "100k and every 100k" )
	PORT_DIPNAME( 0x60, 0x60, "Difficulty", IP_KEY_NONE )
	PORT_DIPSETTING(    0x60, "Easy" )
	PORT_DIPSETTING(    0x40, "Normal" )
	PORT_DIPSETTING(    0x20, "Difficult" )
	PORT_DIPSETTING(    0x00, "Very Difficult" )
	PORT_DIPNAME( 0x80, 0x80, "Demo Sounds", IP_KEY_NONE )
	PORT_DIPSETTING(    0x80, "Off" )
	PORT_DIPSETTING(    0x00, "On" )
INPUT_PORTS_END


INPUT_PORTS_START( gradius_input_ports )
	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 | IPF_8WAY )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_8WAY )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_8WAY )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_8WAY )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON3 )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON1 )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )

	PORT_START	/* IN2 */
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_8WAY | IPF_PLAYER2 )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_8WAY | IPF_PLAYER2 )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_8WAY | IPF_PLAYER2 )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_8WAY | 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_BUTTON3 | IPF_PLAYER2 )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )

	PORT_START	/* TEST */
	PORT_DIPNAME( 0x01, 0x01, "Flip Screen", IP_KEY_NONE )
	PORT_DIPSETTING(    0x01, "Off" )
	PORT_DIPSETTING(    0x00, "On" )
	PORT_DIPNAME( 0x02, 0x02, "Version", IP_KEY_NONE )
	PORT_DIPSETTING(    0x02, "Normal" )
	PORT_DIPSETTING(    0x00, "Vs" )
	PORT_BITX(    0x04, 0x04, IPT_DIPSWITCH_NAME | IPF_TOGGLE, "Service Mode", OSD_KEY_F2, IP_JOY_NONE, 0 )
	PORT_DIPSETTING(    0x04, "Off" )
	PORT_DIPSETTING(    0x00, "On" )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN )
	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	/* DSW0 */
	PORT_DIPNAME( 0x0f, 0x0f, "Coin A", IP_KEY_NONE )
	PORT_DIPSETTING(    0x02, "4 Coins/1 Credit" )
	PORT_DIPSETTING(    0x05, "3 Coins/1 Credit" )
	PORT_DIPSETTING(    0x08, "2 Coins/1 Credit" )
	PORT_DIPSETTING(    0x04, "3 Coins/2 Credits" )
	PORT_DIPSETTING(    0x01, "4 Coins/3 Credits" )
	PORT_DIPSETTING(    0x0f, "1 Coin/1 Credit" )
	PORT_DIPSETTING(    0x03, "3 Coins/4 Credits" )
	PORT_DIPSETTING(    0x07, "2 Coins/3 Credits" )
	PORT_DIPSETTING(    0x0e, "1 Coin/2 Credits" )
	PORT_DIPSETTING(    0x06, "2 Coins/5 Credits" )
	PORT_DIPSETTING(    0x0d, "1 Coin/3 Credits" )
	PORT_DIPSETTING(    0x0c, "1 Coin/4 Credits" )
	PORT_DIPSETTING(    0x0b, "1 Coin/5 Credits" )
	PORT_DIPSETTING(    0x0a, "1 Coin/6 Credits" )
	PORT_DIPSETTING(    0x09, "1 Coin/7 Credits" )
	PORT_DIPSETTING(    0x00, "Free Play" )
	PORT_DIPNAME( 0xf0, 0xf0, "Coin B", IP_KEY_NONE )
	PORT_DIPSETTING(    0x20, "4 Coins/1 Credit" )
	PORT_DIPSETTING(    0x50, "3 Coins/1 Credit" )
	PORT_DIPSETTING(    0x80, "2 Coins/1 Credit" )
	PORT_DIPSETTING(    0x40, "3 Coins/2 Credits" )
	PORT_DIPSETTING(    0x10, "4 Coins/3 Credits" )
	PORT_DIPSETTING(    0xf0, "1 Coin/1 Credit" )
	PORT_DIPSETTING(    0x30, "3 Coins/4 Credits" )
	PORT_DIPSETTING(    0x70, "2 Coins/3 Credits" )
	PORT_DIPSETTING(    0xe0, "1 Coin/2 Credits" )
	PORT_DIPSETTING(    0x60, "2 Coins/5 Credits" )
	PORT_DIPSETTING(    0xd0, "1 Coin/3 Credits" )
	PORT_DIPSETTING(    0xc0, "1 Coin/4 Credits" )
	PORT_DIPSETTING(    0xb0, "1 Coin/5 Credits" )
	PORT_DIPSETTING(    0xa0, "1 Coin/6 Credits" )
	PORT_DIPSETTING(    0x90, "1 Coin/7 Credits" )
	PORT_DIPSETTING(    0x00, "Disable" )

	PORT_START	/* DSW1 */
	PORT_DIPNAME( 0x03, 0x01, "Lives", IP_KEY_NONE )
	PORT_DIPSETTING(    0x03, "3" )
	PORT_DIPSETTING(    0x02, "4" )
	PORT_DIPSETTING(    0x01, "5" )
	PORT_DIPSETTING(    0x00, "7" )
	PORT_DIPNAME( 0x04, 0x00, "Cabinet", IP_KEY_NONE )
	PORT_DIPSETTING(    0x00, "Upright" )
	PORT_DIPSETTING(    0x04, "Cocktail" )
	PORT_DIPNAME( 0x18, 0x18, "Bonus Life", IP_KEY_NONE )
	PORT_DIPSETTING(    0x18, "20k and every 70k" )
	PORT_DIPSETTING(    0x08, "20k only" )
	PORT_DIPSETTING(    0x10, "30k and every 80k" )
	PORT_DIPSETTING(    0x00, "30k only" )
	PORT_DIPNAME( 0x60, 0x60, "Difficulty", IP_KEY_NONE )
	PORT_DIPSETTING(    0x60, "Easy" )
	PORT_DIPSETTING(    0x40, "Normal" )
	PORT_DIPSETTING(    0x20, "Difficult" )
	PORT_DIPSETTING(    0x00, "Very Difficult" )
	PORT_DIPNAME( 0x80, 0x00, "Demo Sounds", IP_KEY_NONE )
	PORT_DIPSETTING(    0x80, "Off" )
	PORT_DIPSETTING(    0x00, "On" )
INPUT_PORTS_END


static struct GfxLayout charlayout =
{
	8,8,	/* 8*8 characters */
	2048,	/* 2048 characters */
	4,	/* 4 bits per pixel */
	{ 0, 1, 2, 3 }, /* the two bitplanes are merged in the same nibble */
	{ 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 */
	512,	/* 512 sprites */
	4,	/* 4 bits per pixel */
	{ 0, 1, 2, 3 }, /* the two bitplanes are merged in the same nibble */
	{ 0*4, 1*4, 2*4, 3*4, 4*4, 5*4, 6*4, 7*4,
			8*4, 9*4, 10*4, 11*4, 12*4, 13*4, 14*4, 15*4 },
	{ 0*64, 1*64, 2*64, 3*64, 4*64, 5*64, 6*64, 7*64,
			8*64, 9*64, 10*64, 11*64, 12*64, 13*64, 14*64, 15*64 },
	128*8     /* every sprite takes 128 consecutive bytes */
};

static struct GfxLayout spritelayout3216 =
{
	32,16,	/* 32*16 sprites */
	256,	/* 256 sprites */
	4,	/* 4 bits per pixel */
	{ 0, 1, 2, 3 }, /* the two bitplanes are merged in the same nibble */
	{ 0*4, 1*4, 2*4, 3*4, 4*4, 5*4, 6*4, 7*4,
			8*4, 9*4, 10*4, 11*4, 12*4, 13*4, 14*4, 15*4,
		   16*4,17*4, 18*4, 19*4, 20*4, 21*4, 22*4, 23*4,
		   24*4,25*4, 26*4, 27*4, 28*4, 29*4, 30*4, 31*4},
	{ 0*128, 1*128, 2*128, 3*128, 4*128, 5*128, 6*128, 7*128,
			8*128, 9*128, 10*128, 11*128, 12*128, 13*128, 14*128, 15*128 },
	256*8     /* every sprite takes 128 consecutive bytes */
};

static struct GfxLayout spritelayout1632 =
{
	16,32,	/* 16*32 sprites */
	256,	/* 256 sprites */
	4,	/* 4 bits per pixel */
	{ 0, 1, 2, 3 }, /* the two bitplanes are merged in the same nibble */
	{ 0*4, 1*4, 2*4, 3*4, 4*4, 5*4, 6*4, 7*4,
			8*4, 9*4, 10*4, 11*4, 12*4, 13*4, 14*4, 15*4},
	{ 0*64,  1*64,  2*64,  3*64,  4*64,  5*64,  6*64,  7*64,
	  8*64,  9*64, 10*64, 11*64, 12*64, 13*64, 14*64, 15*64,
	 16*64, 17*64, 18*64, 19*64, 20*64, 21*64, 22*64, 23*64,
	 24*64, 25*64, 26*64, 27*64, 28*64, 29*64, 30*64, 31*64},
	256*8     /* every sprite takes 128 consecutive bytes */
};

static struct GfxLayout spritelayout3232 =
{
	32,32,	/* 32*32 sprites */
	129,	/* 128 sprites */
	4,	/* 4 bits per pixel */
	{ 0, 1, 2, 3 }, /* the two bitplanes are merged in the same nibble */
	{ 0*4, 1*4, 2*4, 3*4, 4*4, 5*4, 6*4, 7*4,
			8*4, 9*4, 10*4, 11*4, 12*4, 13*4, 14*4, 15*4,
		   16*4,17*4, 18*4, 19*4, 20*4, 21*4, 22*4, 23*4,
		   24*4,25*4, 26*4, 27*4, 28*4, 29*4, 30*4, 31*4},
	{ 0*128, 1*128, 2*128, 3*128, 4*128, 5*128, 6*128, 7*128,
			8*128,  9*128, 10*128, 11*128, 12*128, 13*128, 14*128, 15*128,
		   16*128, 17*128, 18*128, 19*128, 20*128, 21*128, 22*128, 23*128,
		   24*128, 25*128, 26*128, 27*128, 28*128, 29*128, 30*128, 31*128},
	512*8     /* every sprite takes 128 consecutive bytes */
};

static struct GfxLayout spritelayout816 =
{
	8,16,	/* 16*16 sprites */
	1024,	/* 512 sprites */
	4,	/* 4 bits per pixel */
	{ 0, 1, 2, 3 }, /* the two bitplanes are merged in the same nibble */
	{ 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,
			8*32, 9*32, 10*32, 11*32, 12*32, 13*32, 14*32, 15*32 },
	64*8     /* every sprite takes 128 consecutive bytes */
};


static struct GfxDecodeInfo gfxdecodeinfo[] =
{
    { 0, 0x0, &charlayout,   0, 0x80 },	/* the game dynamically modifies this */
    { 0, 0x0, &spritelayout, 0, 0x80 },	/* the game dynamically modifies this */
    { 0, 0x0, &spritelayout3216, 0, 0x80 },	/* the game dynamically modifies this */
    { 0, 0x0, &spritelayout816, 0, 0x80 },	/* the game dynamically modifies this */
    { 0, 0x0, &spritelayout3232, 0, 0x80 },	/* the game dynamically modifies this */
    { 0, 0x0, &spritelayout1632, 0, 0x80 },	/* the game dynamically modifies this */
	{ -1 }
};



static struct AY8910interface ay8910_interface =
{
	2,	/* 2 chip */
	14318000/8,	/* 1.78975 Mhz?? */
	{ 0x20ff, 0x20ff },
	{ nemesis_portA_r, 0 },
	{ 0, 0 },
	{ 0, 0 },
	{ 0, 0 }
};



static struct MachineDriver nemesis_machine_driver =
{
	/* basic machine hardware */
	{
		{
			CPU_M68000,
			14318180/2,	/* ??? guess */
			0,
			readmem,writemem,0,0,
			nemesis_interrupt,1
		},
		{
			CPU_Z80 | CPU_AUDIO_CPU,
			3579545,	/* 3.579545 MHz */
			2,
			sound_readmem,sound_writemem,0,0,
			ignore_interrupt,1	/* interrupts are triggered by the main CPU */
		},
	},

	60, DEFAULT_REAL_60HZ_VBLANK_DURATION,
	1,	/* 1 CPU slice per frame - interleaving is forced when a sound command is written */
	nemesis_init_machine,

	/* video hardware */
	32*8, 32*8, { 0*8, 32*8-1, 2*8, 30*8-1 },
	gfxdecodeinfo,
	2048, 2048,
	0,

	VIDEO_TYPE_RASTER | VIDEO_MODIFIES_PALETTE,
	0,
	nemesis_vh_start,
	nemesis_vh_stop,
	nemesis_vh_screenrefresh,

	/* sound hardware */
	0,0,0,0,
	{
		{
			SOUND_AY8910,
			&ay8910_interface
		}
	}
};


static struct MachineDriver konamigt_machine_driver =
{
	/* basic machine hardware */
	{
		{
			CPU_M68000,
			14318180/2,	/* ??? guess */
			0,
			konamigt_readmem,konamigt_writemem,0,0,
			konamigt_interrupt,2
		},
		{
			CPU_Z80 | CPU_AUDIO_CPU,
			3579545,	/* 3.579545 MHz */
			2,
			sound_readmem,sound_writemem,0,0,
			ignore_interrupt,1	/* interrupts are triggered by the main CPU */
		},
	},

	60, DEFAULT_REAL_60HZ_VBLANK_DURATION,
	1,	/* 1 CPU slice per frame - interleaving is forced when a sound command is written */
	nemesis_init_machine,

	/* video hardware */
	32*8, 32*8, { 0*8, 32*8-1, 2*8, 30*8-1 },
	gfxdecodeinfo,
	2048, 2048,
	0,

	VIDEO_TYPE_RASTER | VIDEO_MODIFIES_PALETTE,
	0,
	nemesis_vh_start,
	nemesis_vh_stop,
	nemesis_vh_screenrefresh,