scramble.c

这个是延伸mame的在wince平台下的游戏模拟器的代码

	1,	/* 1 bit per pixel */
	{ 0 },
	{ 3, 0, 0, 0, 0, 0, 0 },	/* I "know" that this bit of the */
	{ 0 },						/* graphics ROMs is 1 */
	0	/* no use */
};
static struct GfxLayout theend_bulletlayout =
{
	/* there is no gfx ROM for this one, it is generated by the hardware */
	7,1,	/* 4*1 line, I think - 7*1 to position it correctly */
	1,	/* just one */
	1,	/* 1 bit per pixel */
	{ 0 },
	{ 2, 2, 2, 2, 0, 0, 0 },	/* I "know" that this bit of the */
	{ 0 },						/* graphics ROMs is 1 */
	0	/* no use */
};


static struct GfxDecodeInfo scramble_gfxdecodeinfo[] =
{
	{ 1, 0x0000, &charlayout,     0, 8 },
	{ 1, 0x0000, &spritelayout,   0, 8 },
	{ 1, 0x0000, &bulletlayout, 8*4, 1 },	/* 1 color code instead of 2, so all */
											/* shots will be yellow */
	{ -1 } /* end of array */
};

static struct GfxDecodeInfo theend_gfxdecodeinfo[] =
{
	{ 1, 0x0000, &charlayout,     0, 8 },
	{ 1, 0x0000, &spritelayout,   0, 8 },
	{ 1, 0x0000, &theend_bulletlayout, 8*4, 2 },
	{ -1 } /* end of array */
};



/* this is NOT the original color PROM - it's the Scramble one */
static unsigned char wrong_color_prom[] =
{
	0x00,0x17,0xC7,0xF6,0x00,0x17,0xC0,0x3F,0x00,0x07,0xC0,0x3F,0x00,0xC0,0xC4,0x07,
	0x00,0xC7,0x31,0x17,0x00,0x31,0xC7,0x3F,0x00,0xF6,0x07,0xF0,0x00,0x3F,0x07,0xC4
};



static struct AY8910interface scramble_ay8910_interface =
{
	2,	/* 2 chips */
	14318000/8,	/* 1.78975 MHz */
	{ 0x30ff, 0x30ff },
	{ soundlatch_r },
	{ scramble_portB_r },
	{ 0 },
	{ 0 }
};

static struct AY8910interface frogger_ay8910_interface =
{
	1,	/* 1 chip */
	14318000/8,	/* 1.78975 MHz */
	{ 0x30ff },
	{ soundlatch_r },
	{ frogger_portB_r },
	{ 0 },
	{ 0 }
};



static struct MachineDriver scramble_machine_driver =
{
	/* basic machine hardware */
	{
		{
			CPU_Z80,
			18432000/6,	/* 3.072 MHz */
			0,
			scramble_readmem,writemem,0,0,
			scramble_vh_interrupt,1
		},
		{
			CPU_Z80 | CPU_AUDIO_CPU,
			14318000/8,	/* 1.78975 MHz */
			3,	/* memory region #3 */
			sound_readmem,sound_writemem,sound_readport,sound_writeport,
			ignore_interrupt,1	/* interrupts are triggered by the main CPU */
		}
	},
	60, 2500,	/* frames per second, vblank duration */
	1,	/* 1 CPU slice per frame - interleaving is forced when a sound command is written */
	0,

	/* video hardware */
	32*8, 32*8, { 0*8, 32*8-1, 2*8, 30*8-1 },
	scramble_gfxdecodeinfo,
	32+64,8*4+2*2,	/* 32 for the characters, 64 for the stars */
	galaxian_vh_convert_color_prom,

	VIDEO_TYPE_RASTER,
	0,
	scramble_vh_start,
	generic_vh_stop,
	galaxian_vh_screenrefresh,

	/* sound hardware */
	0,0,0,0,
	{
		{
			SOUND_AY8910,
			&scramble_ay8910_interface
		}
	}
};

/* same as Scramble, the only differences are gfxdecodeinfo and readmem */
static struct MachineDriver theend_machine_driver =
{
	/* basic machine hardware */
	{
		{
			CPU_Z80,
			18432000/6,	/* 3.072 MHz */
			0,
			readmem,writemem,0,0,
			scramble_vh_interrupt,1
		},
		{
			CPU_Z80 | CPU_AUDIO_CPU,
			14318000/8,	/* 1.78975 MHz */
			3,	/* memory region #3 */
			sound_readmem,sound_writemem,sound_readport,sound_writeport,
			ignore_interrupt,1	/* interrupts are triggered by the main CPU */
		}
	},
	60, 2500,	/* frames per second, vblank duration */
	1,	/* 1 CPU slice per frame - interleaving is forced when a sound command is written */
	0,

	/* video hardware */
	32*8, 32*8, { 0*8, 32*8-1, 2*8, 30*8-1 },
	theend_gfxdecodeinfo,
	32+64,8*4+2*2,	/* 32 for the characters, 64 for the stars */
	galaxian_vh_convert_color_prom,

	VIDEO_TYPE_RASTER,
	0,
	scramble_vh_start,
	generic_vh_stop,
	galaxian_vh_screenrefresh,

	/* sound hardware */
	0,0,0,0,
	{
		{
			SOUND_AY8910,
			&scramble_ay8910_interface
		}
	}
};

static struct MachineDriver froggers_machine_driver =
{
	/* basic machine hardware */
	{
		{
			CPU_Z80,
			18432000/6,	/* 3.072 MHz */
			0,
			readmem,writemem,0,0,
			scramble_vh_interrupt,1
		},
		{
			CPU_Z80 | CPU_AUDIO_CPU,
			14318000/8,	/* 1.78975 MHz */
			3,	/* memory region #3 */
			froggers_sound_readmem,froggers_sound_writemem,froggers_sound_readport,froggers_sound_writeport,
			ignore_interrupt,1	/* interrupts are triggered by the main CPU */
		}
	},
	60, 2500,	/* frames per second, vblank duration */
	1,	/* 1 CPU slice per frame - interleaving is forced when a sound command is written */
	0,

	/* video hardware */
	32*8, 32*8, { 0*8, 32*8-1, 2*8, 30*8-1 },
	scramble_gfxdecodeinfo,
	32+64,8*4+2*2,	/* 32 for the characters, 64 for the stars */
	galaxian_vh_convert_color_prom,

	VIDEO_TYPE_RASTER,
	0,
	scramble_vh_start,
	generic_vh_stop,
	galaxian_vh_screenrefresh,

	/* sound hardware */
	0,0,0,0,
	{
		{
			SOUND_AY8910,
			&frogger_ay8910_interface
		}
	}
};



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

  Game driver(s)

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

ROM_START( scramble_rom )
	ROM_REGION(0x10000)	/* 64k for code */
	ROM_LOAD( "2d",           0x0000, 0x0800, 0xb89207a1 )
	ROM_LOAD( "2e",           0x0800, 0x0800, 0xe9b4b9eb )
	ROM_LOAD( "2f",           0x1000, 0x0800, 0xa1f14f4c )
	ROM_LOAD( "2h",           0x1800, 0x0800, 0x591bc0d9 )
	ROM_LOAD( "2j",           0x2000, 0x0800, 0x22f11b6b )
	ROM_LOAD( "2l",           0x2800, 0x0800, 0x705ffe49 )
	ROM_LOAD( "2m",           0x3000, 0x0800, 0xea26c35c )
	ROM_LOAD( "2p",           0x3800, 0x0800, 0x94d8f5e3 )

	ROM_REGION_DISPOSE(0x1000)	/* temporary space for graphics (disposed after conversion) */
	ROM_LOAD( "5f",           0x0000, 0x0800, 0x5f30311a )
	ROM_LOAD( "5h",           0x0800, 0x0800, 0x516e029e )

	ROM_REGION(0x0020)	/* color prom */
	ROM_LOAD( "scramble.clr", 0x0000, 0x0020, 0x4e3caeab )

	ROM_REGION(0x10000)	/* 64k for the audio CPU */
	ROM_LOAD( "5c",           0x0000, 0x0800, 0xbcd297f0 )
	ROM_LOAD( "5d",           0x0800, 0x0800, 0xde7912da )
	ROM_LOAD( "5e",           0x1000, 0x0800, 0xba2fa933 )
ROM_END

ROM_START( atlantis_rom )
	ROM_REGION(0x10000)	/* 64k for code */
	ROM_LOAD( "2c",           0x0000, 0x0800, 0x0e485b9a )
	ROM_LOAD( "2e",           0x0800, 0x0800, 0xc1640513 )
	ROM_LOAD( "2f",           0x1000, 0x0800, 0xeec265ee )
	ROM_LOAD( "2h",           0x1800, 0x0800, 0xa5d2e442 )
	ROM_LOAD( "2j",           0x2000, 0x0800, 0x45f7cf34 )
	ROM_LOAD( "2l",           0x2800, 0x0800, 0xf335b96b )

	ROM_REGION_DISPOSE(0x1000)	/* temporary space for graphics (disposed after conversion) */
	ROM_LOAD( "5f",           0x0000, 0x0800, 0x57f9c6b9 )
	ROM_LOAD( "5h",           0x0800, 0x0800, 0xe989f325 )

	ROM_REGION(0x0020)	/* color prom */

	ROM_REGION(0x10000)	/* 64k for the audio CPU */
	ROM_LOAD( "5c",           0x0000, 0x0800, 0xbcd297f0 )
	ROM_LOAD( "5d",           0x0800, 0x0800, 0xde7912da )
	ROM_LOAD( "5e",           0x1000, 0x0800, 0xba2fa933 )
ROM_END

ROM_START( theend_rom )
	ROM_REGION(0x10000)	/* 64k for code */
	ROM_LOAD( "ic13",         0x0000, 0x0800, 0x90e5ab14 )
	ROM_LOAD( "ic14",         0x0800, 0x0800, 0x950f0a07 )
	ROM_LOAD( "ic15",         0x1000, 0x0800, 0x6786bcf5 )
	ROM_LOAD( "ic16",         0x1800, 0x0800, 0x380a0017 )
	ROM_LOAD( "ic17",         0x2000, 0x0800, 0xaf067b7f )
	ROM_LOAD( "ic18",         0x2800, 0x0800, 0xa0411b93 )

	ROM_REGION_DISPOSE(0x1000)	/* temporary space for graphics (disposed after conversion) */
	ROM_LOAD( "ic30",         0x0000, 0x0800, 0x527fd384 )
	ROM_LOAD( "ic31",         0x0800, 0x0800, 0xaf6d09b6 )

	ROM_REGION(0x0020)	/* color prom */
	ROM_LOAD( "6331-1j.86",   0x0000, 0x0020, 0x24652bc4 )

	ROM_REGION(0x10000)	/* 64k for the audio CPU */
	ROM_LOAD( "ic56",         0x0000, 0x0800, 0x3b2c2f70 )
	ROM_LOAD( "ic55",         0x0800, 0x0800, 0xe0429e50 )
ROM_END

ROM_START( froggers_rom )
	ROM_REGION(0x10000)	/* 64k for code */
	ROM_LOAD( "vid_d2.bin",   0x0000, 0x0800, 0xc103066e )
	ROM_LOAD( "vid_e2.bin",   0x0800, 0x0800, 0xf08bc094 )
	ROM_LOAD( "vid_f2.bin",   0x1000, 0x0800, 0x637a2ff8 )
	ROM_LOAD( "vid_h2.bin",   0x1800, 0x0800, 0x04c027a5 )
	ROM_LOAD( "vid_j2.bin",   0x2000, 0x0800, 0xfbdfbe74 )
	ROM_LOAD( "vid_l2.bin",   0x2800, 0x0800, 0x8a4389e1 )

	ROM_REGION_DISPOSE(0x1000)	/* temporary space for graphics (disposed after conversion) */
	ROM_LOAD( "vid_f5.bin",   0x0000, 0x0800, 0x658745f8 )
	ROM_LOAD( "vid_h5.bin",   0x0800, 0x0800, 0x05f7d883 )

	ROM_REGION(0x0020)	/* color PROMs */
	ROM_LOAD( "vid_e6.bin",   0x0000, 0x0020, 0x0b878b54 )

	ROM_REGION(0x10000)	/* 64k for the audio CPU */
	ROM_LOAD( "snd_c5.bin",   0x0000, 0x0800, 0xe8ab0256 )
	ROM_LOAD( "snd_d5.bin",   0x0800, 0x0800, 0x7380a48f )
	ROM_LOAD( "snd_e5.bin",   0x1000, 0x0800, 0x31d7eb27 )
ROM_END

ROM_START( amidars_rom )
	ROM_REGION(0x10000)	/* 64k for code */
	ROM_LOAD( "am2d",         0x0000, 0x0800, 0x24b79547 )
	ROM_LOAD( "am2e",         0x0800, 0x0800, 0x4c64161e )
	ROM_LOAD( "am2f",         0x1000, 0x0800, 0xb3987a72 )
	ROM_LOAD( "am2h",         0x1800, 0x0800, 0x29873461 )
	ROM_LOAD( "am2j",         0x2000, 0x0800, 0x0fdd54d8 )
	ROM_LOAD( "am2l",         0x2800, 0x0800, 0x5382f7ed )
	ROM_LOAD( "am2m",         0x3000, 0x0800, 0x1d7109e9 )
	ROM_LOAD( "am2p",         0x3800, 0x0800, 0xc9163ac6 )

	ROM_REGION_DISPOSE(0x1000)	/* temporary space for graphics (disposed after conversion) */
	ROM_LOAD( "am5f",         0x0000, 0x0800, 0x2082ad0a )
	ROM_LOAD( "am5h",         0x0800, 0x0800, 0x3029f94f )

	ROM_REGION(0x0020)	/* color prom */
	ROM_LOAD( "amidar.clr",   0x0000, 0x0020, 0xf940dcc3 )

	ROM_REGION(0x10000)	/* 64k for the audio CPU */
	ROM_LOAD( "am5c",         0x0000, 0x1000, 0x8ca7b750 )
	ROM_LOAD( "am5d",         0x1000, 0x1000, 0x9b5bdc0a )
ROM_END



static void froggers_decode(void)
{
	int A;
	unsigned char *RAM;


	/* the first ROM of the second CPU has data lines D0 and D1 swapped. Decode it. */
	RAM = Machine->memory_region[Machine->drv->cpu[1].memory_region];
	for (A = 0;A < 0x0800;A++)
		RAM[A] = (RAM[A] & 0xfc) | ((RAM[A] & 1) << 1) | ((RAM[A] & 2) >> 1);
}



static int scramble_hiload(void)
{
	unsigned char *RAM = Machine->memory_region[Machine->drv->cpu[0].memory_region];


	/* check if the hi score table has already been initialized */
        if ((memcmp(&RAM[0x4200],"\x00\x00\x01",3) == 0) &&
		(memcmp(&RAM[0x421B],"\x00\x00\x01",3) == 0))
	{
		void *f;


		if ((f = osd_fopen(Machine->gamedrv->name,0,OSD_FILETYPE_HIGHSCORE,0)) != 0)
		{
			osd_fread(f,&RAM[0x4200],0x1E);
			/* copy high score */
			memcpy(&RAM[0x40A8],&RAM[0x4200],3);
			osd_fclose(f);
		}

		return 1;
	}
	else return 0;	/* we can't load the hi scores yet */
}



static void scramble_hisave(void)
{
	void *f;
	unsigned char *RAM = Machine->memory_region[Machine->drv->cpu[0].memory_region];


	if ((f = osd_fopen(Machine->gamedrv->name,0,OSD_FILETYPE_HIGHSCORE,1)) != 0)
	{
		osd_fwrite(f,&RAM[0x4200],0x1E);
		osd_fclose(f);
	}

}


static int atlantis_hiload(void)
{
	unsigned char *RAM = Machine->memory_region[Machine->drv->cpu[0].memory_region];


	/* check if the hi score table has already been initialized */
        if (memcmp(&RAM[0x403D],"\x00\x00\x00",3) == 0)
	{
		void *f;


		if ((f = osd_fopen(Machine->gamedrv->name,0,OSD_FILETYPE_HIGHSCORE,0)) != 0)
		{
			osd_fread(f,&RAM[0x403D],4*11);
			osd_fclose(f);
		}

		return 1;
	}
	else return 0;	/* we can't load the hi scores yet */
}



static void atlantis_hisave(void)
{
	void *f;
	unsigned char *RAM = Machine->memory_region[Machine->drv->cpu[0].memory_region];


	if ((f = osd_fopen(Machine->gamedrv->name,0,OSD_FILETYPE_HIGHSCORE,1)) != 0)
	{
		osd_fwrite(f,&RAM[0x403D],4*11);
		osd_fclose(f);
	}

}

static int theend_hiload(void)
{
	static int loop = 0;
	unsigned char *RAM = Machine->memory_region[Machine->drv->cpu[0].memory_region];


	/* check if the hi score table has already been initialized */
	/* the high score table is intialized to all 0, so first of all */
	/* we dirty it, then we wait for it to be cleared again */