bagman.c

这个是延伸mame的在wince平台下的游戏模拟器的代码

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

Bagman memory map (preliminary)

0000-5fff ROM
6000-67ff RAM
9000-93ff Video RAM
9800-9bff Color RAM
9800-981f Sprites (hidden portion of color RAM)
9c00-9fff ? (filled with 3f, not used otherwise)
c000-ffff ROM (Super Bagman only)

memory mapped ports:

read:
a000      PAL16r6 output.
a800      ? (read only in one place, not used)
b000      DSW
b800      watchdog reset?

write:
a000      interrupt enable
a001      \ horizontal and vertical flip, I don't know which is which
a002      /
a003      video enable??
a004      coin counter
a007      ?
a800-a805 PAL16r6 inputs. This chip is custom logic used for guards controlling.
b000      ?
b800      ?

I/O ports:

I/O 8  ;AY-3-8910 Control Reg.
I/O 9  ;AY-3-8910 Data Write Reg.
I/O C  ;AY-3-8910 Data Read Reg.
        Port A of the 8910 is connected to IN0
        Port B of the 8910 is connected to IN1

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

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



int bagman_pal16r6_r(int offset);
void bagman_machine_init(void);
void bagman_pal16r6_w(int offset, int data);


extern unsigned char *bagman_video_enable;
void bagman_flipscreen_w(int offset,int data);
void bagman_vh_screenrefresh(struct osd_bitmap *bitmap,int full_refresh);
void bagman_vh_convert_color_prom(unsigned char *palette, unsigned short *colortable, const unsigned char *color_prom);



static struct MemoryReadAddress readmem[] =
{
	{ 0x0000, 0x5fff, MRA_ROM },
	{ 0x6000, 0x67ff, MRA_RAM },
	{ 0x9000, 0x93ff, MRA_RAM },
	{ 0x9800, 0x9bff, MRA_RAM },
	{ 0xa000, 0xa000, bagman_pal16r6_r },
	{ 0xa800, 0xa800, MRA_NOP },
	{ 0xb000, 0xb000, input_port_2_r },	/* DSW */
	{ 0xb800, 0xb800, MRA_NOP },
	{ 0xc000, 0xffff, MRA_ROM },	/* Super Bagman only */
	{ -1 }	/* end of table */
};

static struct MemoryWriteAddress writemem[] =
{
	{ 0x0000, 0x5fff, MWA_ROM },
	{ 0x6000, 0x67ff, MWA_RAM },
	{ 0x9000, 0x93ff, videoram_w, &videoram, &videoram_size },
	{ 0x9800, 0x9bff, colorram_w, &colorram },
	{ 0xa000, 0xa000, interrupt_enable_w },
	{ 0xa001, 0xa002, bagman_flipscreen_w },
	{ 0xa003, 0xa003, MWA_RAM, &bagman_video_enable },
	{ 0xc000, 0xffff, MWA_ROM },	/* Super Bagman only */
	{ 0x9800, 0x981f, MWA_RAM, &spriteram, &spriteram_size },	/* hidden portion of color RAM */
									/* here only to initialize the pointer, */
	{ 0xa7ff, 0xa805, bagman_pal16r6_w },	/* PAL16r6 custom logic */
														/* writes are handled by colorram_w */
	{ 0x9c00, 0x9fff, MWA_NOP },	/* written to, but unused */
	{ 0xa004, 0xa004, coin_counter_w },
#if 0
	{ 0xa007, 0xa007, MWA_NOP },	/* ???? */
	{ 0xb000, 0xb000, MWA_NOP },	/* ???? */
	{ 0xb800, 0xb800, MWA_NOP },	/* ???? */
#endif
	{ -1 }	/* end of table */
};

static struct MemoryReadAddress pickin_readmem[] =
{
	{ 0x0000, 0x5fff, MRA_ROM },
	{ 0x7000, 0x77ff, MRA_RAM },
	{ 0x8800, 0x8bff, MRA_RAM },
	{ 0x9800, 0x9bff, MRA_RAM },
	{ 0xa800, 0xa800, input_port_2_r },
	{ 0xb800, 0xb800, MRA_NOP },
	{ -1 }	/* end of table */
};

static struct MemoryWriteAddress pickin_writemem[] =
{
	{ 0x0000, 0x5fff, MWA_ROM },
	{ 0x7000, 0x77ff, MWA_RAM },
	{ 0x8800, 0x8bff, videoram_w, &videoram, &videoram_size },
	{ 0x9800, 0x9bff, colorram_w, &colorram },
	{ 0xa000, 0xa000, interrupt_enable_w },
	{ 0xa001, 0xa002, bagman_flipscreen_w },
	{ 0xa003, 0xa003, MWA_RAM, &bagman_video_enable },
	{ 0x9800, 0x981f, MWA_RAM, &spriteram, &spriteram_size },	/* hidden portion of color RAM */
									/* here only to initialize the pointer, */
														/* writes are handled by colorram_w */
	{ 0x9c00, 0x9fff, MWA_NOP },	/* written to, but unused */
	{ 0xa004, 0xa004, coin_counter_w },
#if 0
	{ 0xa007, 0xa007, MWA_NOP },	/* ???? */
	{ 0xb000, 0xb000, MWA_NOP },	/* ???? */
	{ 0xb800, 0xb800, MWA_NOP },	/* ???? */
#endif
	{ -1 }	/* end of table */
};

static struct IOReadPort readport[] =
{
	{ 0x0c, 0x0c, AY8910_read_port_0_r },
	{ -1 }	/* end of table */
};

static struct IOWritePort writeport[] =
{
	{ 0x08, 0x08, AY8910_control_port_0_w },
	{ 0x09, 0x09, AY8910_write_port_0_w },
	{ -1 }	/* end of table */
};



INPUT_PORTS_START( bagman_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_START1 )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_8WAY )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_8WAY )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_8WAY )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_8WAY )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON1 )

	PORT_START	/* IN1 */
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN3 )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN4 )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_START2 )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_8WAY | IPF_COCKTAIL )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_8WAY | IPF_COCKTAIL )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_8WAY | IPF_COCKTAIL )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_8WAY | IPF_COCKTAIL )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON1 | IPF_COCKTAIL )

	PORT_START	/* DSW */
	PORT_DIPNAME( 0x03, 0x02, "Lives", IP_KEY_NONE )
	PORT_DIPSETTING(    0x03, "2" )
	PORT_DIPSETTING(    0x02, "3" )
	PORT_DIPSETTING(    0x01, "4" )
	PORT_DIPSETTING(    0x00, "5" )
	PORT_DIPNAME( 0x04, 0x04, "Coinage", IP_KEY_NONE )
	PORT_DIPSETTING(    0x00, "2 Coins/1 Credit" )
	PORT_DIPSETTING(    0x04, "1 Coin/1 Credit" )
	PORT_DIPNAME( 0x18, 0x18, "Difficulty", IP_KEY_NONE )
	PORT_DIPSETTING(    0x18, "Easy" )
	PORT_DIPSETTING(    0x10, "Medium" )
	PORT_DIPSETTING(    0x08, "Hard" )
	PORT_DIPSETTING(    0x00, "Hardest" )
	PORT_DIPNAME( 0x20, 0x20, "Language", IP_KEY_NONE )
	PORT_DIPSETTING(    0x20, "English" )
	PORT_DIPSETTING(    0x00, "French" )
	PORT_DIPNAME( 0x40, 0x40, "Bonus Life", IP_KEY_NONE )
	PORT_DIPSETTING(    0x40, "30000" )
	PORT_DIPSETTING(    0x00, "40000" )
	PORT_DIPNAME( 0x80, 0x80, "Cabinet", IP_KEY_NONE )
	PORT_DIPSETTING(    0x80, "Upright" )
	PORT_DIPSETTING(    0x00, "Cocktail" )
INPUT_PORTS_END

/* EXACTLY the same as bagman, the only difference is that the START1 button */
/* also acts as the shoot button. */
INPUT_PORTS_START( sbagman_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_START1 )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON2 )	/* double-function button, start and shoot */
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_8WAY )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_8WAY )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_8WAY )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_8WAY )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON1 )

	PORT_START	/* IN1 */
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN3 )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN4 )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_START2 )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON2 | IPF_COCKTAIL )	/* double-function button, start and shoot */
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_8WAY | IPF_COCKTAIL )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_8WAY | IPF_COCKTAIL )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_8WAY | IPF_COCKTAIL )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_8WAY | IPF_COCKTAIL )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON1 | IPF_COCKTAIL )

	PORT_START	/* DSW */
	PORT_DIPNAME( 0x03, 0x02, "Lives", IP_KEY_NONE )
	PORT_DIPSETTING(    0x03, "2" )
	PORT_DIPSETTING(    0x02, "3" )
	PORT_DIPSETTING(    0x01, "4" )
	PORT_DIPSETTING(    0x00, "5" )
	PORT_DIPNAME( 0x04, 0x04, "Coinage", IP_KEY_NONE )
	PORT_DIPSETTING(    0x00, "2 Coins/1 Credit" )
	PORT_DIPSETTING(    0x04, "1 Coin/1 Credit" )
	PORT_DIPNAME( 0x18, 0x18, "Difficulty", IP_KEY_NONE )
	PORT_DIPSETTING(    0x18, "Easy" )
	PORT_DIPSETTING(    0x10, "Medium" )
	PORT_DIPSETTING(    0x08, "Hard" )
	PORT_DIPSETTING(    0x00, "Hardest" )
	PORT_DIPNAME( 0x20, 0x20, "Language", IP_KEY_NONE )
	PORT_DIPSETTING(    0x20, "English" )
	PORT_DIPSETTING(    0x00, "French" )
	PORT_DIPNAME( 0x40, 0x40, "Bonus Life", IP_KEY_NONE )
	PORT_DIPSETTING(    0x40, "30000" )
	PORT_DIPSETTING(    0x00, "40000" )
	PORT_DIPNAME( 0x80, 0x80, "Cabinet", IP_KEY_NONE )
	PORT_DIPSETTING(    0x80, "Upright" )
	PORT_DIPSETTING(    0x00, "Cocktail" )
INPUT_PORTS_END

INPUT_PORTS_START( pickin_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_START1 )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_8WAY )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_8WAY )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_8WAY )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_8WAY )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON1 )

	PORT_START	/* IN1 */
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN3 )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN4 )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_START2 )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_8WAY | IPF_COCKTAIL )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_8WAY | IPF_COCKTAIL )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_8WAY | IPF_COCKTAIL )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_8WAY | IPF_COCKTAIL )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON1 | IPF_COCKTAIL )

	PORT_START	/* DSW */
	PORT_DIPNAME( 0x01, 0x01, "Coinage", IP_KEY_NONE )
	PORT_DIPSETTING(    0x00, "2C/1C 1C/1C 1C/3C 1C/7C" )
	PORT_DIPSETTING(    0x01, "1C/1C 1C/2C 1C/6C 1C/14C" )
	PORT_DIPNAME( 0x06, 0x04, "Lives", IP_KEY_NONE )
	PORT_DIPSETTING(    0x06, "2" )
	PORT_DIPSETTING(    0x04, "3" )
	PORT_DIPSETTING(    0x02, "4" )
	PORT_DIPSETTING(    0x00, "5" )
	PORT_DIPNAME( 0x08, 0x08, "Free Play", IP_KEY_NONE )
	PORT_DIPSETTING(    0x08, "Off" )
	PORT_DIPSETTING(    0x00, "On" )
	PORT_DIPNAME( 0x10, 0x10, "Unknown", IP_KEY_NONE )
	PORT_DIPSETTING(    0x10, "Off" )
	PORT_DIPSETTING(    0x00, "On" )
	PORT_DIPNAME( 0x20, 0x20, "Unknown", IP_KEY_NONE )
	PORT_DIPSETTING(    0x20, "Off" )
	PORT_DIPSETTING(    0x00, "On" )
	PORT_DIPNAME( 0x40, 0x40, "Language", IP_KEY_NONE )
	PORT_DIPSETTING(    0x40, "English" )
	PORT_DIPSETTING(    0x00, "French" )
	PORT_DIPNAME( 0x80, 0x80, "Cabinet", IP_KEY_NONE )
	PORT_DIPSETTING(    0x80, "Upright" )
	PORT_DIPSETTING(    0x00, "Cocktail" )
INPUT_PORTS_END



static struct GfxLayout charlayout =
{
	8,8,	/* 8*8 characters */
	512,	/* 512 characters */
	2,	/* 2 bits per pixel */
	{ 0, 512*8*8 },	/* the two bitplanes are separated */
	{ 0, 1, 2, 3, 4, 5, 6, 7 },	/* pretty straightforward layout */
	{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
	8*8	/* every char takes 8 consecutive bytes */
};
static struct GfxLayout spritelayout =
{
	16,16,	/* 16*16 sprites */
	128,	/* 128 sprites */
	2,	/* 2 bits per pixel */
	{ 0, 128*16*16 },	/* the two bitplanes are separated */
	{ 0, 1, 2, 3, 4, 5, 6, 7,	/* pretty straightforward layout */
			8*8+0, 8*8+1, 8*8+2, 8*8+3, 8*8+4, 8*8+5, 8*8+6, 8*8+7 },
	{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8,
			16*8, 17*8, 18*8, 19*8, 20*8, 21*8, 22*8, 23*8 },
	32*8	/* every sprite takes 32 consecutive bytes */
};



static struct GfxDecodeInfo gfxdecodeinfo[] =
{
	{ 1, 0x0000, &charlayout,      0, 16 },	/* char set #1 */
	{ 1, 0x2000, &charlayout,      0, 16 },	/* char set #2 */
	{ 1, 0x0000, &spritelayout,    0, 16 },	/* sprites */
	{ -1 } /* end of array */
};



static struct AY8910interface ay8910_interface =
{
	1,	/* 1 chip */
	1500000,	/* 1.5 MHz??? */
	{ 255 },
	{ input_port_0_r },
	{ input_port_1_r },
	{ 0 },
	{ 0 }
};



static struct MachineDriver machine_driver =
{
	/* basic machine hardware */
	{
		{
			CPU_Z80,
			3072000,	/* 3.072 Mhz (?) */
			0,
			readmem,writemem,readport,writeport,
			interrupt,1
		}
	},
	60, DEFAULT_60HZ_VBLANK_DURATION,	/* frames per second, vblank duration */
	1,	/* single CPU, no need for interleaving */
	bagman_machine_init,

	/* video hardware */
	32*8, 32*8, { 0*8, 32*8-1, 2*8, 30*8-1 },
	gfxdecodeinfo,
	64,64,
	bagman_vh_convert_color_prom,

	VIDEO_TYPE_RASTER|VIDEO_SUPPORTS_DIRTY,
	0,
	generic_vh_start,
	generic_vh_stop,
	bagman_vh_screenrefresh,

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

static struct MachineDriver pickin_machine_driver =
{
	/* basic machine hardware */
	{
		{
			CPU_Z80,
			3072000,	/* 3.072 Mhz (?) */
			0,
			pickin_readmem,pickin_writemem,readport,writeport,
			interrupt,1
		}
	},
	60, DEFAULT_60HZ_VBLANK_DURATION,	/* frames per second, vblank duration */
	1,	/* single CPU, no need for interleaving */
	bagman_machine_init,

	/* video hardware */
	32*8, 32*8, { 0*8, 32*8-1, 2*8, 30*8-1 },
	gfxdecodeinfo,
	64,64,
	bagman_vh_convert_color_prom,

	VIDEO_TYPE_RASTER|VIDEO_SUPPORTS_DIRTY,
	0,
	generic_vh_start,
	generic_vh_stop,
	bagman_vh_screenrefresh,

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