williams.c

这个是延伸mame的在wince平台下的游戏模拟器的代码

			64                      /* interrupts per frame (64 times/frame for video counter) */
		},
		{
			CPU_M6808 | CPU_AUDIO_CPU,
			894750, /* 0.89475 Mhz (3.579 / 4) */
			2,      /* memory region #2 */
			sound_readmem,sound_writemem,0,0,
			ignore_interrupt,1      /* interrupts are triggered by the main CPU */
		}
	},
	60, DEFAULT_60HZ_VBLANK_DURATION,	/* frames per second, vblank duration */
	1,	/* 1 CPU slice per frame - interleaving is forced when a sound command is written */
	robotron_init_machine,          /* init machine routine */

	/* video hardware */
	304, 256,                               /* screen_width, screen_height */
	{ 6, 298-1, 7, 247-1 },                 /* struct rectangle visible_area */
	0,                          /* GfxDecodeInfo * */
	16,                                  /* total colors */
	0,                                      /* color table length */
	williams_vh_convert_color_prom,         /* convert color prom routine */

	VIDEO_TYPE_RASTER|VIDEO_MODIFIES_PALETTE|VIDEO_SUPPORTS_DIRTY,
	0,                                      /* vh_init routine */
	williams_vh_start,                      /* vh_start routine */
	williams_vh_stop,                       /* vh_stop routine */
	williams_vh_screenrefresh,              /* vh_update routine */

	/* sound hardware */
	0,0,0,0,
	{
		{
			SOUND_DAC,
			&dac_interface
		}
	}
};


/*
 *   Joust driver
 */

static struct MachineDriver joust_machine_driver =
{
	/* basic machine hardware  */
	{
		{
			CPU_M6809,
			1000000,                /* ? Mhz */
			0,                      /* memory region */
			joust_readmem,          /* MemoryReadAddress */
			williams_writemem,      /* MemoryWriteAddress */
			0,                      /* IOReadPort */
			0,                      /* IOWritePort */
			williams_interrupt,     /* interrupt routine */
			64                      /* interrupts per frame (64 times/frame for video counter) */
		},
		{
			CPU_M6808 | CPU_AUDIO_CPU,
			894750, /* 0.89475 Mhz (3.579 / 4) */
			2,      /* memory region #2 */
			sound_readmem,sound_writemem,0,0,
			ignore_interrupt,1      /* interrupts are triggered by the main CPU */
		}
	},
	60, DEFAULT_60HZ_VBLANK_DURATION,	/* frames per second, vblank duration */
	1,	/* 1 CPU slice per frame - interleaving is forced when a sound command is written */
	joust_init_machine,          /* init machine routine */

	/* video hardware */
	304, 256,                               /* screen_width, screen_height */
	{ 6, 298-1, 7, 247-1 },                 /* struct rectangle visible_area */
	0,                          /* GfxDecodeInfo * */
	16,                                  /* total colors */
	0,                                      /* color table length */
	williams_vh_convert_color_prom,         /* convert color prom routine */

	VIDEO_TYPE_RASTER|VIDEO_MODIFIES_PALETTE|VIDEO_SUPPORTS_DIRTY,
	0,                                      /* vh_init routine */
	williams_vh_start,                      /* vh_start routine */
	williams_vh_stop,                       /* vh_stop routine */
	williams_vh_screenrefresh,              /* vh_update routine */

	/* sound hardware */
	0,0,0,0,
	{
		{
			SOUND_DAC,
			&dac_interface
		}
	}
};



/*
 *   Stargate driver
 */

static struct MachineDriver stargate_machine_driver =
{
	/* basic machine hardware  */
	{
		{
			CPU_M6809,
			1000000,                /* ? Mhz */
			0,                      /* memory region */
			stargate_readmem,       /* MemoryReadAddress */
			williams_writemem,      /* MemoryWriteAddress */
			0,                      /* IOReadPort */
			0,                      /* IOWritePort */
			williams_interrupt,     /* interrupt routine */
			64                      /* interrupts per frame (64 times/frame for video counter) */
		},
		{
			CPU_M6808 | CPU_AUDIO_CPU,
			894750, /* 0.89475 Mhz (3.579 / 4) */
			2,      /* memory region #2 */
			sound_readmem,sound_writemem,0,0,
			ignore_interrupt,1      /* interrupts are triggered by the main CPU */
		}
	},
	60, DEFAULT_60HZ_VBLANK_DURATION,	/* frames per second, vblank duration */
	1,	/* 1 CPU slice per frame - interleaving is forced when a sound command is written */
	stargate_init_machine,          /* init machine routine */

	/* video hardware */
	304, 256,                               /* screen_width, screen_height */
	{ 6, 298-1, 7, 247-1 },                 /* struct rectangle visible_area */
	0,                          /* GfxDecodeInfo * */
	16,                                  /* total colors */
	0,                                      /* color table length */
	williams_vh_convert_color_prom,         /* convert color prom routine */

	VIDEO_TYPE_RASTER|VIDEO_MODIFIES_PALETTE|VIDEO_SUPPORTS_DIRTY,
	0,                                      /* vh_init routine */
	williams_vh_start,                      /* vh_start routine */
	williams_vh_stop,                       /* vh_stop routine */
	williams_vh_screenrefresh,              /* vh_update routine */

	/* sound hardware */
	0,0,0,0,
	{
		{
			SOUND_DAC,
			&dac_interface
		}
	}
};


/*
 *   Bubbles driver
 */

static struct MachineDriver bubbles_machine_driver =
{
	/* basic machine hardware  */
	{
		{
			CPU_M6809,
			1000000,                /* ? Mhz */
			0,                      /* memory region */
			bubbles_readmem,        /* MemoryReadAddress */
			williams_writemem,      /* MemoryWriteAddress */
			0,                      /* IOReadPort */
			0,                      /* IOWritePort */
			williams_interrupt,     /* interrupt routine */
			64                      /* interrupts per frame (64 times/frame for video counter) */
		},
		{
			CPU_M6808 | CPU_AUDIO_CPU,
			894750, /* 0.89475 Mhz (3.579 / 4) */
			2,      /* memory region #2 */
			sound_readmem,sound_writemem,0,0,
			ignore_interrupt,1      /* interrupts are triggered by the main CPU */
		}
	},
	60, DEFAULT_60HZ_VBLANK_DURATION,	/* frames per second, vblank duration */
	1,	/* 1 CPU slice per frame - interleaving is forced when a sound command is written */
	bubbles_init_machine,          /* init machine routine */

	/* video hardware */
	304, 256,                               /* screen_width, screen_height */
	{ 6, 298-1, 7, 247-1 },                 /* struct rectangle visible_area */
	0,                          /* GfxDecodeInfo * */
	16,                                  /* total colors */
	0,                                      /* color table length */
	williams_vh_convert_color_prom,         /* convert color prom routine */

	VIDEO_TYPE_RASTER|VIDEO_MODIFIES_PALETTE|VIDEO_SUPPORTS_DIRTY,
	0,                                      /* vh_init routine */
	williams_vh_start,                      /* vh_start routine */
	williams_vh_stop,                       /* vh_stop routine */
	williams_vh_screenrefresh,              /* vh_update routine */

	/* sound hardware */
	0,0,0,0,
	{
		{
			SOUND_DAC,
			&dac_interface
		}
	}
};


/*
 *   Sinistar driver
 */

static struct Samplesinterface sinistar_samples_interface =
{
	1	/* 1 channel */
};

static struct MachineDriver sinistar_machine_driver =
{
	/* basic machine hardware  */
	{
		{
			CPU_M6809,
			1000000,                /* ? Mhz */ /*Sinistar do not like 1 mhz*/
			0,                      /* memory region */
			sinistar_readmem,       /* MemoryReadAddress */
			sinistar_writemem,      /* MemoryWriteAddress */
			0,                      /* IOReadPort */
			0,                      /* IOWritePort */
			williams_interrupt,     /* interrupt routine */
			64                      /* interrupts per frame (64 times/frame for video counter) */
		},
		{
			CPU_M6808 | CPU_AUDIO_CPU,
			894750, /* 0.89475 Mhz (3.579 / 4) */
			2,      /* memory region #2 */
			sound_readmem,sound_writemem,0,0,
			ignore_interrupt,1      /* interrupts are triggered by the main CPU */
		}
	},
	60, DEFAULT_60HZ_VBLANK_DURATION,	/* frames per second, vblank duration */
	1,	/* 1 CPU slice per frame - interleaving is forced when a sound command is written */
	sinistar_init_machine,          /* init machine routine */

	/* video hardware */
	304, 256,                               /* screen_width, screen_height */
	{ 6, 298-1, 7, 247-1 },                 /* struct rectangle visible_area */
	0,                          /* GfxDecodeInfo * */
	16,                                  /* total colors */
	0,                                      /* color table length */
	williams_vh_convert_color_prom,         /* convert color prom routine */

	VIDEO_TYPE_RASTER|VIDEO_MODIFIES_PALETTE|VIDEO_SUPPORTS_DIRTY,
	0,                                      /* vh_init routine */
	sinistar_vh_start,                      /* vh_start routine */
	williams_vh_stop,                       /* vh_stop routine */
	williams_vh_screenrefresh,              /* vh_update routine */

	/* sound hardware */
	0,0,0,0,
	{
		{
			SOUND_DAC,
			&dac_interface
		},
		{
			SOUND_SAMPLES,
			&sinistar_samples_interface
		}
	}
};


/*
 *   Defender driver
 */

static struct MachineDriver defender_machine_driver =
{
	/* basic machine hardware  */
	{
		{
			CPU_M6809,
			1200000,                /* ? Mhz */ /*Defender do not like 1 mhz. Collect at least 9 humans, when you depose them, the game stuck */
			0,                      /* memory region */
			defender_readmem,       /* MemoryReadAddress */
			defender_writemem,      /* MemoryWriteAddress */
			0,                      /* IOReadPort */
			0,                      /* IOWritePort */
			williams_interrupt,     /* interrupt routine */
			64                      /* interrupts per frame (64 times/frame for video counter) */
		},
		{
			CPU_M6808 | CPU_AUDIO_CPU,
			894750, /* 0.89475 Mhz (3.579 / 4) */
			2,      /* memory region #2 */
			sound_readmem,sound_writemem,0,0,
			ignore_interrupt,1      /* interrupts are triggered by the main CPU */
		}
	},
	60, DEFAULT_60HZ_VBLANK_DURATION,	/* frames per second, vblank duration */
	1,	/* 1 CPU slice per frame - interleaving is forced when a sound command is written */
	defender_init_machine,          /* init machine routine */

	/* video hardware */
	304, 256,                               /* screen_width, screen_height */
	{ 6, 298-1, 7, 247-1 },                 /* struct rectangle visible_area */
	0,                          /* GfxDecodeInfo * */
	16,                                  /* total colors */
	0,                                      /* color table length */
	williams_vh_convert_color_prom,         /* convert color prom routine */

	VIDEO_TYPE_RASTER|VIDEO_MODIFIES_PALETTE|VIDEO_SUPPORTS_DIRTY,
	0,                                      /* vh_init routine */
	williams_vh_start,                      /* vh_start routine */
	williams_vh_stop,                       /* vh_stop routine */
	williams_vh_screenrefresh,              /* vh_update routine */

	/* sound hardware */
	0,0,0,0,
	{
		{
			SOUND_DAC,
			&dac_interface
		}
	}
};


/*
 *   Splat driver
 */

static struct MachineDriver splat_machine_driver =
{
	/* basic machine hardware  */
	{
		{
			CPU_M6809,
			1000000,                /* ? Mhz */
			0,                      /* memory region */
			splat_readmem,          /* MemoryReadAddress */
			splat_writemem,         /* MemoryWriteAddress */
			0,                      /* IOReadPort */
			0,                      /* IOWritePort */
			williams_interrupt,     /* interrupt routine */
			64                      /* interrupts per frame (64 times/frame for video counter) */
		},
		{
			CPU_M6808 | CPU_AUDIO_CPU,
			894750, /* 0.89475 Mhz (3.579 / 4) */
			2,      /* memory region #2 */
			sound_readmem,sound_writemem,0,0,
			ignore_interrupt,1      /* interrupts are triggered by the main CPU */
		}
	},
	60, DEFAULT_60HZ_VBLANK_DURATION,	/* frames per second, vblank duration */
	1,	/* 1 CPU slice per frame - interleaving is forced when a sound command is written */
	splat_init_machine,          /* init machine routine */

	/* video hardware */
	304, 256,                               /* screen_width, screen_height */
	{ 6, 298-1, 7, 247-1 },                 /* struct rectangle visible_area */
	0,                          /* GfxDecodeInfo * */
	16,                                  /* total colors */
	0,                                      /* color table length */
	williams_vh_convert_color_prom,         /* convert color prom routine */

	VIDEO_TYPE_RASTER|VIDEO_MODIFIES_PALETTE|VIDEO_SUPPORTS_DIRTY,
	0,                                      /* vh_init routine */
	williams_vh_start_sc2,                  /* vh_start routine */
	williams_vh_stop,                       /* vh_stop routine */
	williams_vh_screenrefresh,              /* vh_update routine */

	/* sound hardware */
	0,0,0,0,
	{
		{
			SOUND_DAC,
			&dac_interface
		}
	}
};


/*
 *   Blaster driver
 */