frogger.c

这个是延伸mame的在wince平台下的游戏模拟器的代码

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

Frogger memory map (preliminary)

0000-3fff ROM
8000-87ff RAM
a800-abff Video RAM
b000-b0ff Object RAM
b000-b03f screen attributes
b040-b05f sprites
b060-b0ff unused?

read:
8800      Watchdog Reset
e000      IN0
e002      IN1
e004      IN2

*
 * IN0 (all bits are inverted)
 * bit 7 : COIN 1
 * bit 6 : COIN 2
 * bit 5 : LEFT player 1
 * bit 4 : RIGHT player 1
 * bit 3 : SHOOT 1 player 1
 * bit 2 : CREDIT
 * bit 1 : SHOOT 2 player 1
 * bit 0 : UP player 2 (TABLE only)
 *
*
 * IN1 (all bits are inverted)
 * bit 7 : START 1
 * bit 6 : START 2
 * bit 5 : LEFT player 2 (TABLE only)
 * bit 4 : RIGHT player 2 (TABLE only)
 * bit 3 : SHOOT 1 player 2 (TABLE only)
 * bit 2 : SHOOT 2 player 2 (TABLE only)
 * bit 1 :\ nr of lives
 * bit 0 :/ 00 = 3  01 = 5  10 = 7  11 = 256
*
 * IN2 (all bits are inverted)
 * bit 7 : unused
 * bit 6 : DOWN player 1
 * bit 5 : unused
 * bit 4 : UP player 1
 * bit 3 : COCKTAIL or UPRIGHT cabinet (0 = UPRIGHT)
 * bit 2 :\ coins per play
 * bit 1 :/
 * bit 0 : DOWN player 2 (TABLE only)
 *

write:
b808      interrupt enable
b80c      screen horizontal flip
b810      screen vertical flip
b818      coin counter 1
b81c      coin counter 2
d000      To AY-3-8910 port A (commands for the second Z80)
d002      trigger interrupt on sound CPU


SOUND BOARD:
0000-17ff ROM
4000-43ff RAM

I/0 ports:
read:
40      8910 #1  read

write
40      8910 #1  write
80      8910 #1  control

interrupts:
interrupt mode 1 triggered by the main CPU

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

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



extern unsigned char *frogger_attributesram;
void frogger_vh_convert_color_prom(unsigned char *palette, unsigned short *colortable,const unsigned char *color_prom);
void frogger_attributes_w(int offset,int data);
void frogger_vh_screenrefresh(struct osd_bitmap *bitmap,int full_refresh);
void frogger2_vh_screenrefresh(struct osd_bitmap *bitmap,int full_refresh);

int frogger_portB_r(int offset);
void frogger_sh_irqtrigger_w(int offset,int data);
void frogger2_sh_irqtrigger_w(int offset,int data);

static void frogger_counterb_w (int offset, int data)
{
	coin_counter_w (1, data);
}

static struct MemoryReadAddress readmem[] =
{
	{ 0x0000, 0x3fff, MRA_ROM },
	{ 0x8000, 0x87ff, MRA_RAM },
	{ 0x8800, 0x8800, watchdog_reset_r },
	{ 0xa800, 0xabff, MRA_RAM },	/* video RAM */
	{ 0xb000, 0xb05f, MRA_RAM },	/* screen attributes, sprites */
	{ 0xe000, 0xe000, input_port_0_r },	/* IN0 */
	{ 0xe002, 0xe002, input_port_1_r },	/* IN1 */
	{ 0xe004, 0xe004, input_port_2_r },	/* IN2 */
	{ -1 }	/* end of table */
};

static struct MemoryWriteAddress writemem[] =
{
	{ 0x0000, 0x3fff, MWA_ROM },
	{ 0x8000, 0x87ff, MWA_RAM },
	{ 0xa800, 0xabff, videoram_w, &videoram, &videoram_size },
	{ 0xb000, 0xb03f, frogger_attributes_w, &frogger_attributesram },
	{ 0xb040, 0xb05f, MWA_RAM, &spriteram, &spriteram_size },
	{ 0xb808, 0xb808, interrupt_enable_w },
	{ 0xb818, 0xb818, coin_counter_w },
	{ 0xb81c, 0xb81c, frogger_counterb_w },
	{ 0xd000, 0xd000, soundlatch_w },
	{ 0xd002, 0xd002, frogger_sh_irqtrigger_w },
	{ -1 }	/* end of table */
};

static struct MemoryReadAddress frogger2_readmem[] =
{
	{ 0x0000, 0x3fff, MRA_ROM },
	{ 0x8000, 0x87ff, MRA_RAM },
	{ 0x9000, 0x93ff, MRA_RAM },	/* video RAM */
	{ 0x9800, 0x985f, MRA_RAM },	/* screen attributes, sprites */
	{ 0xa000, 0xa000, input_port_0_r },	/* IN0 */
	{ 0xa800, 0xa800, input_port_1_r },	/* IN1 */
	{ 0xb000, 0xb000, input_port_2_r },	/* IN2 */
	{ 0xb800, 0xb800, watchdog_reset_r },
	{ -1 }	/* end of table */
};

static struct MemoryWriteAddress frogger2_writemem[] =
{
	{ 0x0000, 0x3fff, MWA_ROM },
	{ 0x8000, 0x87ff, MWA_RAM },
	{ 0x9000, 0x93ff, videoram_w, &videoram, &videoram_size },
	{ 0x9800, 0x983f, frogger_attributes_w, &frogger_attributesram },
	{ 0x9840, 0x985f, MWA_RAM, &spriteram, &spriteram_size },
	{ 0xa800, 0xa800, soundlatch_w },
	{ 0xb000, 0xb000, interrupt_enable_w },
	{ 0xb001, 0xb001, frogger2_sh_irqtrigger_w },
	{ -1 }	/* end of table */
};



static struct MemoryReadAddress sound_readmem[] =
{
	{ 0x0000, 0x17ff, MRA_ROM },
	{ 0x4000, 0x43ff, MRA_RAM },
	{ -1 }	/* end of table */
};

static struct MemoryWriteAddress sound_writemem[] =
{
	{ 0x0000, 0x17ff, MWA_ROM },
	{ 0x4000, 0x43ff, MWA_RAM },
	{ -1 }	/* end of table */
};



static struct IOReadPort sound_readport[] =
{
	{ 0x40, 0x40, AY8910_read_port_0_r },
	{ -1 }	/* end of table */
};

static struct IOWritePort sound_writeport[] =
{
	{ 0x80, 0x80, AY8910_control_port_0_w },
	{ 0x40, 0x40, AY8910_write_port_0_w },
	{ -1 }	/* end of table */
};



INPUT_PORTS_START( input_ports )
	PORT_START	/* IN0 */
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_4WAY | IPF_COCKTAIL )
	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* 1P shoot2 - unused */
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_COIN3 )
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* 1P shoot1 - unused */
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_4WAY )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_4WAY )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_COIN2 )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_COIN1 )

	PORT_START	/* IN1 */
	PORT_DIPNAME( 0x03, 0x00, "Lives", IP_KEY_NONE )
	PORT_DIPSETTING(    0x00, "3" )
	PORT_DIPSETTING(    0x01, "5" )
	PORT_DIPSETTING(    0x02, "7" )
	PORT_BITX( 0,       0x03, IPT_DIPSWITCH_SETTING | IPF_CHEAT, "256", IP_KEY_NONE, IP_JOY_NONE, 0 )
	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* 2P shoot2 - unused */
	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* 2P shoot1 - unused */
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_4WAY | IPF_COCKTAIL )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_4WAY | IPF_COCKTAIL )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_START2 )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_START1 )

	PORT_START	/* IN2 */
	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_4WAY | IPF_COCKTAIL )
	PORT_DIPNAME( 0x06, 0x00, "Coinage", IP_KEY_NONE )
	PORT_DIPSETTING(    0x02, "A 2/1 B 2/1 C 2/1" )
	PORT_DIPSETTING(    0x04, "A 2/1 B 1/3 C 2/1" )
	PORT_DIPSETTING(    0x00, "A 1/1 B 1/1 C 1/1" )
	PORT_DIPSETTING(    0x06, "A 1/1 B 1/6 C 1/1" )
	PORT_DIPNAME( 0x08, 0x00, "Cabinet", IP_KEY_NONE )
	PORT_DIPSETTING(    0x00, "Upright" )
	PORT_DIPSETTING(    0x08, "Cocktail" )
	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_4WAY )
	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_4WAY )
	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
INPUT_PORTS_END

INPUT_PORTS_START( frogger2_input_ports )
	PORT_START	/* IN0 */
	PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_COIN1 )
	PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_COIN2 )
	PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT | IPF_4WAY )
	PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT | IPF_4WAY )
	PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP | IPF_4WAY )
	PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN | IPF_4WAY )
	PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_COIN3 )

	PORT_START	/* IN1 */
	PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_START1 )
	PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_START2 )
	PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT | IPF_4WAY | IPF_COCKTAIL )
	PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT | IPF_4WAY | IPF_COCKTAIL )
	PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP | IPF_4WAY | IPF_COCKTAIL )
	PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN | IPF_4WAY | IPF_COCKTAIL )
	PORT_DIPNAME( 0xc0, 0xc0, "Lives", IP_KEY_NONE )
	PORT_DIPSETTING(    0xc0, "3" )
	PORT_DIPSETTING(    0x80, "5" )
	PORT_DIPSETTING(    0x40, "7" )
	PORT_BITX( 0,       0x00, IPT_DIPSWITCH_SETTING | IPF_CHEAT, "256", IP_KEY_NONE, IP_JOY_NONE, 0 )

	PORT_START	/* IN2 */
	PORT_DIPNAME( 0x01, 0x01, "Cabinet", IP_KEY_NONE )
	PORT_DIPSETTING(    0x01, "Upright" )
	PORT_DIPSETTING(    0x00, "Cocktail" )
	PORT_DIPNAME( 0x06, 0x06, "Coinage", IP_KEY_NONE )
	PORT_DIPSETTING(    0x02, "A 2/1 B 2/1 C 2/1" )
	PORT_DIPSETTING(    0x04, "A 2/1 B 1/3 C 2/1" )
	PORT_DIPSETTING(    0x06, "A 1/1 B 1/1 C 1/1" )
	PORT_DIPSETTING(    0x00, "A 1/1 B 1/6 C 1/1" )
	PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_UNKNOWN )
	PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNKNOWN )
INPUT_PORTS_END



static struct GfxLayout charlayout =
{
	8,8,	/* 8*8 characters */
	256,	/* 256 characters */
	2,	/* 2 bits per pixel */
	{ 256*8*8, 0 },	/* the two bitplanes are separated */
	{ 7*8, 6*8, 5*8, 4*8, 3*8, 2*8, 1*8, 0*8 },
	{ 0, 1, 2, 3, 4, 5, 6, 7 },
	8*8	/* every char takes 8 consecutive bytes */
};
static struct GfxLayout spritelayout =
{
	16,16,	/* 16*16 sprites */
	64,	/* 64 sprites */
	2,	/* 2 bits per pixel */
	{ 64*16*16, 0 },	/* the two bitplanes are separated */
	{ 23*8, 22*8, 21*8, 20*8, 19*8, 18*8, 17*8, 16*8,
			7*8, 6*8, 5*8, 4*8, 3*8, 2*8, 1*8, 0*8 },
	{ 0, 1, 2, 3, 4, 5, 6, 7,
			8*8+0, 8*8+1, 8*8+2, 8*8+3, 8*8+4, 8*8+5, 8*8+6, 8*8+7 },
	32*8	/* every sprite takes 32 consecutive bytes */
};



static struct GfxDecodeInfo gfxdecodeinfo[] =
{
	{ 1, 0x0000, &charlayout,     0, 16 },
	{ 1, 0x0000, &spritelayout,   0,  8 },
	{ -1 } /* end of array */
};



static struct AY8910interface ay8910_interface =
{
	1,	/* 1 chip */
	14318000/8,	/* 1.78975 Mhz */
	{ 0x2050 },
	{ soundlatch_r },
	{ frogger_portB_r },
	{ 0 },
	{ 0 }
};