galpanic.c

这个是延伸mame的在wince平台下的游戏模拟器的代码

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


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

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



extern unsigned char *galpanic_bgvideoram,*galpanic_fgvideoram;
extern int galpanic_fgvideoram_size;

int galpanic_bgvideoram_r(int offset);
void galpanic_bgvideoram_w(int offset,int data);
int galpanic_fgvideoram_r(int offset);
void galpanic_fgvideoram_w(int offset,int data);
int galpanic_paletteram_r(int offset);
void galpanic_paletteram_w(int offset,int data);
int galpanic_spriteram_r(int offset);
void galpanic_spriteram_w(int offset,int data);
int galpanic_vh_start(void);
void galpanic_vh_stop(void);
void galpanic_vh_screenrefresh(struct osd_bitmap *bitmap,int full_refresh);




int galpanic_interrupt(void)
{
	/* IRQ 3 drives the game, IRQ 5 updates the palette */
	if (cpu_getiloops() != 0) return 5;
	else return 3;
}

void galpanic_6295_bankswitch_w(int offset,int data)
{
	static unsigned char bank[2]={0,0};
	/*int bankaddress;*/
	unsigned char *RAM = Machine->memory_region[2];


	COMBINE_WORD_MEM(bank,data);

	memcpy(&RAM[0x30000],&RAM[0x40000 + ((data >> 8) & 0x0f) * 0x10000],0x10000);
}



static struct MemoryReadAddress readmem[] =
{
	{ 0x000000, 0x3fffff, MRA_ROM },
	{ 0x400000, 0x400001, OKIM6295_status_r },
	{ 0x500000, 0x51ffff, galpanic_fgvideoram_r },
	{ 0x520000, 0x53ffff, galpanic_bgvideoram_r },
	{ 0x600000, 0x6007ff, galpanic_paletteram_r },
	{ 0x700000, 0x7047ff, galpanic_spriteram_r },
	{ 0x800000, 0x800001, input_port_0_r },
	{ 0x800002, 0x800003, input_port_1_r },
	{ 0x800004, 0x800005, input_port_2_r },
	{ -1 }  /* end of table */
};

static struct MemoryWriteAddress writemem[] =
{
	{ 0x000000, 0x3fffff, MWA_ROM },
	{ 0x400000, 0x400001, OKIM6295_data_w },
	{ 0x500000, 0x51ffff, galpanic_fgvideoram_w, &galpanic_fgvideoram, &galpanic_fgvideoram_size },
	{ 0x520000, 0x53ffff, galpanic_bgvideoram_w, &galpanic_bgvideoram },	/* + work RAM */
	{ 0x600000, 0x6007ff, galpanic_paletteram_w, &paletteram },	/* 1024 colors, but only 512 seem to be used */
	{ 0x700000, 0x7047ff, galpanic_spriteram_w, &spriteram, &spriteram_size },
	{ 0x900000, 0x900001, galpanic_6295_bankswitch_w },
	{ 0xa00000, 0xa00001, MWA_NOP },	/* ??? */
	{ 0xb00000, 0xb00001, MWA_NOP },	/* ??? */
	{ 0xc00000, 0xc00001, MWA_NOP },	/* ??? */
	{ -1 }  /* end of table */
};



INPUT_PORTS_START( input_ports )
	PORT_START
	PORT_DIPNAME( 0x0001, 0x0001, "Unknown", IP_KEY_NONE )
	PORT_DIPSETTING(      0x0001, "Off" )
	PORT_DIPSETTING(      0x0000, "On" )
	PORT_DIPNAME( 0x0002, 0x0002, "Unknown", IP_KEY_NONE )
	PORT_DIPSETTING(      0x0002, "Off" )
	PORT_DIPSETTING(      0x0000, "On" )
	PORT_BITX(    0x0004, 0x0004, IPT_DIPSWITCH_NAME | IPF_TOGGLE, "Service Mode", OSD_KEY_F2, IP_JOY_NONE, 0 )
	PORT_DIPSETTING(      0x0004, "Off" )
	PORT_DIPSETTING(      0x0000, "On" )
	PORT_DIPNAME( 0x0008, 0x0008, "Unknown", IP_KEY_NONE )
	PORT_DIPSETTING(      0x0008, "Off" )
	PORT_DIPSETTING(      0x0000, "On" )
	PORT_DIPNAME( 0x0030, 0x0030, "Coin A", IP_KEY_NONE )
	PORT_DIPSETTING(      0x0000, "4 Coins/1 Credit" )
	PORT_DIPSETTING(      0x0010, "3 Coins/1 Credit" )
	PORT_DIPSETTING(      0x0020, "2 Coins/1 Credit" )
	PORT_DIPSETTING(      0x0030, "1 Coin/1 Credit" )
	PORT_DIPNAME( 0x00c0, 0x00c0, "Coin B", IP_KEY_NONE )
	PORT_DIPSETTING(      0x00c0, "1 Coin/2 Credits" )
	PORT_DIPSETTING(      0x0080, "1 Coin/3 Credits" )
	PORT_DIPSETTING(      0x0040, "1 Coin/4 Credits" )
	PORT_DIPSETTING(      0x0000, "1 Coin/6 Credits" )
	PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_4WAY )
	PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_4WAY )
	PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_4WAY )
	PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_4WAY )
	PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_BUTTON1 )
	PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_UNKNOWN )

	PORT_START
	PORT_DIPNAME( 0x0003, 0x0003, "Difficulty?", IP_KEY_NONE )
	PORT_DIPSETTING(      0x0002, "Easy?" )
	PORT_DIPSETTING(      0x0003, "Normal?" )
	PORT_DIPSETTING(      0x0001, "Hard?" )
	PORT_DIPSETTING(      0x0000, "Hardest?" )
	PORT_DIPNAME( 0x0004, 0x0004, "Unknown", IP_KEY_NONE )
	PORT_DIPSETTING(      0x0004, "Off" )
	PORT_DIPSETTING(      0x0000, "On" )
	PORT_DIPNAME( 0x0008, 0x0008, "Unknown", IP_KEY_NONE )
	PORT_DIPSETTING(      0x0008, "Off" )
	PORT_DIPSETTING(      0x0000, "On" )
	PORT_DIPNAME( 0x0030, 0x0030, "Lives", IP_KEY_NONE )
	PORT_DIPSETTING(      0x0010, "2" )
	PORT_DIPSETTING(      0x0030, "3" )
	PORT_DIPSETTING(      0x0020, "4" )
	PORT_DIPSETTING(      0x0000, "5" )
	PORT_DIPNAME( 0x0040, 0x0040, "Unknown", IP_KEY_NONE )
	PORT_DIPSETTING(      0x0040, "Off" )
	PORT_DIPSETTING(      0x0000, "On" )
	PORT_DIPNAME( 0x0080, 0x0080, "Test Mode", IP_KEY_NONE )
	PORT_DIPSETTING(      0x0080, "Off" )
	PORT_DIPSETTING(      0x0000, "On" )
	PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_4WAY | IPF_COCKTAIL )
	PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_4WAY | IPF_COCKTAIL )
	PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_4WAY | IPF_COCKTAIL )
	PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_4WAY | IPF_COCKTAIL )
	PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_BUTTON1 | IPF_COCKTAIL )
	PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_UNKNOWN )

	PORT_START
	PORT_BIT( 0x00ff, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_START1 )
	PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_START2 )
	PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_COIN1 )
	PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_COIN2 )
	PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_UNKNOWN )
	PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_TILT )
	PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_COIN3 )
	PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_UNKNOWN )
INPUT_PORTS_END



static struct GfxLayout spritelayout =
{
	16,16,	/* 16*16 sprites */
	8192,	/* 8192 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,
			64*4, 65*4, 66*4, 67*4, 68*4, 69*4, 70*4, 71*4 },
	{ 0*32, 1*32, 2*32, 3*32, 4*32, 5*32, 6*32, 7*32,
			16*32, 17*32, 18*32, 19*32, 20*32, 21*32, 22*32, 23*32 },
	128*8	/* every sprite takes 128 consecutive bytes */
};

static struct GfxDecodeInfo gfxdecodeinfo[] =
{
	{ 1, 0x000000, &spritelayout,  256, 16 },
	{ -1 } /* end of array */
};



static struct OKIM6295interface okim6295_interface =
{
	1,              /* 1 chip */
	12000,          /* 12000Hz frequency */
	2,              /* memory region 2 */
	{ 100 }
};



static struct MachineDriver machine_driver =
{
	/* basic machine hardware */
	{
		{
			CPU_M68000,
			8000000,	/* 8 Mhz ??? */
			0,
			readmem,writemem,0,0,
			galpanic_interrupt,2
		}
	},
	60, DEFAULT_60HZ_VBLANK_DURATION,	/* frames per second, vblank duration */
	1,	/* single CPU, no need for interleaving */
	0,

	/* video hardware */
	256, 256, { 0, 256-1, 0, 224-1 },
	gfxdecodeinfo,
	1024, 1024,
	0,

	VIDEO_TYPE_RASTER | VIDEO_MODIFIES_PALETTE | VIDEO_SUPPORTS_16BIT,
	0,
	galpanic_vh_start,
	galpanic_vh_stop,
	galpanic_vh_screenrefresh,

	/* sound hardware */
	0,0,0,0,
	{
		{
			SOUND_OKIM6295,
			&okim6295_interface
		}
	}
};



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

  Game driver(s)

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

ROM_START( galpanic_rom )
	ROM_REGION(0x400000)	/* 68000 code */
	ROM_LOAD_EVEN( "pm110.4m2",    0x000000, 0x080000, 0xae6b17a8 )
	ROM_LOAD_ODD ( "pm109.4m1",    0x000000, 0x080000, 0xb85d792d )
	/* The above two ROMs contain valid 68000 code, but the game doesn't */
	/* work. I think there might be a protection (addressed at e00000). */
	/* The two following ROMs replace the code with a working version. */
	ROM_LOAD_EVEN( "pm112.6",      0x000000, 0x020000, 0x7b972b58 )
	ROM_LOAD_ODD ( "pm111.5",      0x000000, 0x020000, 0x4eb7298d )
	ROM_LOAD_ODD ( "pm004e.8",     0x100000, 0x080000, 0xd3af52bc )
	ROM_LOAD_EVEN( "pm005e.7",     0x100000, 0x080000, 0xd7ec650c )
	ROM_LOAD_ODD ( "pm000e.15",    0x200000, 0x080000, 0x5d220f3f )
	ROM_LOAD_EVEN( "pm001e.14",    0x200000, 0x080000, 0x90433eb1 )
	ROM_LOAD_ODD ( "pm002e.17",    0x300000, 0x080000, 0x713ee898 )
	ROM_LOAD_EVEN( "pm003e.16",    0x300000, 0x080000, 0x6bb060fd )

	ROM_REGION_DISPOSE(0x100000)	/* temporary space for graphics (disposed after conversion) */
	ROM_LOAD( "pm006e.67",    0x000000, 0x100000, 0x57aec037 )

	ROM_REGION(0x140000)	/* 1024k for ADPCM samples - sound chip is OKIM6295 */
	/* 00000-2ffff is fixed, 30000-3ffff is bank switched from all the ROMs */
	ROM_LOAD( "pm008e.l",     0x00000, 0x80000, 0xd9379ba8 )
	ROM_RELOAD(               0x40000, 0x80000 )
	ROM_LOAD( "pm007e.u",     0xc0000, 0x80000, 0xc7ed7950 )
ROM_END



struct GameDriver galpanic_driver =
{
	__FILE__,
	0,
	"galpanic",
	"Gals Panic",
	"1990",
	"Kaneko",
	"Nicola Salmoria",
	0,
	&machine_driver,
	0,

	galpanic_rom,
	0, 0,
	0,
	0,	/* sound_prom */

	input_ports,

	0, 0, 0,
	ORIENTATION_ROTATE_90,
	0, 0
};