📄 sprint2.c

📁 这个是延伸mame的在wince平台下的游戏模拟器的代码
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/***************************************************************************

Atari Sprint2 Driver

Memory Map:
        0000-03FF       WRAM
        0400-07FF       R: RAM and DISPLAY, W: DISPLAY
        0800-0BFF       R: SWITCH
        0C00-0FFF       R: SYNC
        0C00-0C0F       W: ATTRACT
        0C10-0C1F       W: SKID1
        0C20-0C2F       W: SKID2
        0C30-0C3F       W: LAMP1
        0C40-0C4F       W: LAMP2
        0C60-0C6F       W: SPARE
        0C80-0CFF       W: TIMER RESET (Watchdog)
        0D00-0D7F       W: COLLISION RESET 1
        0D80-0DFF       W: COLLISION RESET 2
        0E00-0E7F       W: STEERING RESET 1
        0E80-0EFF       W: STEERING RESET 2
        0F00-0F7F       W: NOISE RESET
        1000-13FF       R: COLLISION1
        1400-17FF       R: COLLISION2
        2000-23FF       PROM1 (Playfield ROM1)
        2400-27FF       PROM2 (Playfield ROM1)
        2800-2BFF       PROM3 (Playfield ROM2)
        2C00-2FFF       PROM4 (Playfield ROM2)
        3000-33FF       PROM5 (Program ROM1)
        3400-37FF       PROM6 (Program ROM1)
        3800-3BFF       PROM7 (Program ROM2)
        3C00-3FFF       PROM8 (Program ROM2)
       (FC00-FFFF)      PROM8 (Program ROM2) - only needed for the 6502 vectors

If you have any questions about how this driver works, don't hesitate to
ask.  - Mike Balfour (mab22@po.cwru.edu)
***************************************************************************/

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

/* vidhrdw/sprint2.c */
extern void sprint1_vh_screenrefresh(struct osd_bitmap *bitmap,int full_refresh);
extern void sprint2_vh_screenrefresh(struct osd_bitmap *bitmap,int full_refresh);
extern int sprint2_vh_start(void);
extern void sprint2_vh_stop(void);
extern unsigned char *sprint2_vert_car_ram;
extern unsigned char *sprint2_horiz_ram;

/* machine/sprint2.c */
int sprint1_read_ports(int offset);
int sprint2_read_ports(int offset);
int sprint2_read_sync(int offset);
int sprint2_coins(int offset);
int sprint2_steering1(int offset);
int sprint2_steering2(int offset);
int sprint2_collision1(int offset);
int sprint2_collision2(int offset);
void sprint2_collision_reset1(int offset, int value);
void sprint2_collision_reset2(int offset, int value);
void sprint2_steering_reset1(int offset, int value);
void sprint2_steering_reset2(int offset, int value);
void sprint2_lamp1(int offset, int value);
void sprint2_lamp2(int offset, int value);


static struct MemoryReadAddress readmem[] =
{
	{ 0x0010, 0x0013, MRA_RAM, &sprint2_horiz_ram }, /* WRAM */
	{ 0x0018, 0x001f, MRA_RAM, &sprint2_vert_car_ram }, /* WRAM */
	{ 0x0000, 0x03ff, MRA_RAM }, /* WRAM */
	{ 0x0400, 0x07ff, MRA_RAM }, /* DISPLAY RAM */
	{ 0x0800, 0x083f, sprint2_read_ports }, /* SWITCH */
	{ 0x0840, 0x087f, sprint2_coins },
	{ 0x0880, 0x08bf, sprint2_steering1 },
	{ 0x08c0, 0x08ff, sprint2_steering2 },
	{ 0x0900, 0x093f, sprint2_read_ports }, /* SWITCH */
	{ 0x0940, 0x097f, sprint2_coins },
	{ 0x0980, 0x09bf, sprint2_steering1 },
	{ 0x09c0, 0x09ff, sprint2_steering2 },
	{ 0x0a00, 0x0a3f, sprint2_read_ports }, /* SWITCH */
	{ 0x0a40, 0x0a7f, sprint2_coins },
	{ 0x0a80, 0x0abf, sprint2_steering1 },
	{ 0x0ac0, 0x0aff, sprint2_steering2 },
	{ 0x0b00, 0x0b3f, sprint2_read_ports }, /* SWITCH */
	{ 0x0b40, 0x0b7f, sprint2_coins },
	{ 0x0b80, 0x0bbf, sprint2_steering1 },
	{ 0x0bc0, 0x0bff, sprint2_steering2 },
	{ 0x0c00, 0x0fff, sprint2_read_sync }, /* SYNC */
	{ 0x1000, 0x13ff, sprint2_collision1 }, /* COLLISION 1 */
	{ 0x1400, 0x17ff, sprint2_collision2 }, /* COLLISION 2 */
	{ 0x2000, 0x3fff, MRA_ROM }, /* PROM1-PROM8 */
	{ 0xfff0, 0xffff, MRA_ROM }, /* PROM8 for 6502 vectors */
	{ -1 }	/* end of table */
};

static struct MemoryWriteAddress writemem[] =
{
	{ 0x0000, 0x03ff, MWA_RAM }, /* WRAM */
	{ 0x0400, 0x07ff, videoram_w, &videoram, &videoram_size }, /* DISPLAY */
	{ 0x0c00, 0x0c0f, MWA_RAM }, /* ATTRACT */
	{ 0x0c10, 0x0c1f, MWA_RAM }, /* SKID1 */
	{ 0x0c20, 0x0c2f, MWA_RAM }, /* SKID2 */
	{ 0x0c30, 0x0c3f, sprint2_lamp1 }, /* LAMP1 */
	{ 0x0c40, 0x0c4f, sprint2_lamp2 }, /* LAMP2 */
	{ 0x0c60, 0x0c6f, MWA_RAM }, /* SPARE */
	{ 0x0c80, 0x0cff, MWA_NOP }, /* TIMER RESET (watchdog) */
	{ 0x0d00, 0x0d7f, sprint2_collision_reset1 }, /* COLLISION RESET 1 */
	{ 0x0d80, 0x0dff, sprint2_collision_reset2 }, /* COLLISION RESET 2 */
	{ 0x0e00, 0x0e7f, sprint2_steering_reset1 }, /* STEERING RESET 1 */
	{ 0x0e80, 0x0eff, sprint2_steering_reset2 }, /* STEERING RESET 2 */
	{ 0x0f00, 0x0f7f, MWA_RAM }, /* NOISE RESET */
	{ 0x2000, 0x3fff, MWA_ROM }, /* PROM1-PROM8 */
	{ -1 }	/* end of table */
};

/* The only difference is that we use "sprint1_read_ports" */
static struct MemoryReadAddress sprint1_readmem[] =
{
	{ 0x0010, 0x0013, MRA_RAM, &sprint2_horiz_ram }, /* WRAM */
	{ 0x0018, 0x001f, MRA_RAM, &sprint2_vert_car_ram }, /* WRAM */
	{ 0x0000, 0x03ff, MRA_RAM }, /* WRAM */
	{ 0x0400, 0x07ff, MRA_RAM }, /* DISPLAY RAM */
	{ 0x0800, 0x083f, sprint1_read_ports }, /* SWITCH */
	{ 0x0840, 0x087f, sprint2_coins },
	{ 0x0880, 0x08bf, sprint2_steering1 },
	{ 0x08c0, 0x08ff, sprint2_steering2 },
	{ 0x0900, 0x093f, sprint1_read_ports }, /* SWITCH */
	{ 0x0940, 0x097f, sprint2_coins },
	{ 0x0980, 0x09bf, sprint2_steering1 },
	{ 0x09c0, 0x09ff, sprint2_steering2 },
	{ 0x0a00, 0x0a3f, sprint1_read_ports }, /* SWITCH */
	{ 0x0a40, 0x0a7f, sprint2_coins },
	{ 0x0a80, 0x0abf, sprint2_steering1 },
	{ 0x0ac0, 0x0aff, sprint2_steering2 },
	{ 0x0b00, 0x0b3f, sprint1_read_ports }, /* SWITCH */
	{ 0x0b40, 0x0b7f, sprint2_coins },
	{ 0x0b80, 0x0bbf, sprint2_steering1 },
	{ 0x0bc0, 0x0bff, sprint2_steering2 },
	{ 0x0c00, 0x0fff, sprint2_read_sync }, /* SYNC */
	{ 0x1000, 0x13ff, sprint2_collision1 }, /* COLLISION 1 */
	{ 0x1400, 0x17ff, sprint2_collision2 }, /* COLLISION 2 */
	{ 0x2000, 0x3fff, MRA_ROM }, /* PROM1-PROM8 */
	{ 0xfff0, 0xffff, MRA_ROM }, /* PROM8 for 6502 vectors */
	{ -1 }	/* end of table */
};

INPUT_PORTS_START( sprint2_input_ports )
	PORT_START      /* DSW - fake port, gets mapped to Sprint2 ports */
	PORT_DIPNAME( 0x01, 0x01, "Misc.", IP_KEY_NONE )
	PORT_DIPSETTING(    0x01, "Cycle 12 Tracks" )
	PORT_DIPSETTING(    0x00, "Show Easy Track" )
	PORT_DIPNAME( 0x02, 0x00, "Misc.", IP_KEY_NONE )
	PORT_DIPSETTING(    0x02, "No Oil Slicks" )
	PORT_DIPSETTING(    0x00, "Oil Slicks" )
	PORT_DIPNAME( 0x0C, 0x00, "Cost", IP_KEY_NONE )
	PORT_DIPSETTING(    0x0C, "Free" )
	PORT_DIPSETTING(    0x08, "2 coins/player" )
	PORT_DIPSETTING(    0x04, "1 coin/2 players" )
	PORT_DIPSETTING(    0x00, "1 coin/player" )
	PORT_DIPNAME( 0x10, 0x10, "Ext. Play", IP_KEY_NONE )
	PORT_DIPSETTING(    0x10, "None" )
	PORT_DIPSETTING(    0x00, "30% of game length" )
	PORT_DIPNAME( 0xC0, 0xC0, "Game Length", IP_KEY_NONE )
	PORT_DIPSETTING(    0xC0, "60 seconds" )
	PORT_DIPSETTING(    0x80, "90 seconds" )
	PORT_DIPSETTING(    0x40, "120 seconds" )
	PORT_DIPSETTING(    0x00, "150 seconds" )

	PORT_START      /* IN0 - fake port, gets mapped to Sprint2 ports */
	PORT_BITX(0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN, "1st gear (P1)", IP_KEY_DEFAULT, IP_JOY_DEFAULT, 0 )
	PORT_BITX(0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT, "2nd gear (P1)", IP_KEY_DEFAULT, IP_JOY_DEFAULT, 0 )
	PORT_BITX(0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT, "3rd gear (P1)", IP_KEY_DEFAULT, IP_JOY_DEFAULT, 0 )
	PORT_BITX(0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP, "4th gear (P1)", IP_KEY_DEFAULT, IP_JOY_DEFAULT, 0 )
	PORT_BITX(0x10, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN | IPF_PLAYER2, "1st gear (P2)", IP_KEY_DEFAULT, IP_JOY_DEFAULT, 0 )
	PORT_BITX(0x20, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT | IPF_PLAYER2, "2nd gear (P2)", IP_KEY_DEFAULT, IP_JOY_DEFAULT, 0 )
	PORT_BITX(0x40, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT | IPF_PLAYER2, "3rd gear (P2)", IP_KEY_DEFAULT, IP_JOY_DEFAULT, 0 )
	PORT_BITX(0x80, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP | IPF_PLAYER2, "4th gear (P2)", IP_KEY_DEFAULT, IP_JOY_DEFAULT, 0 )

	PORT_START      /* IN1 - fake port, gets mapped to Sprint2 ports */
	PORT_BITX(0x01, IP_ACTIVE_LOW, IPT_BUTTON1, "Gas (P1)", IP_KEY_DEFAULT, IP_JOY_DEFAULT, 0 )
	PORT_BITX(0x02, IP_ACTIVE_LOW, IPT_BUTTON1 | IPF_PLAYER2, "Gas (P2)", IP_KEY_DEFAULT, IP_JOY_DEFAULT, 0 )
	PORT_BITX(0x04, IP_ACTIVE_LOW, IPT_SERVICE, "Self Test", OSD_KEY_F2, IP_JOY_NONE, 0 )
	PORT_BIT ( 0x08, IP_ACTIVE_LOW, IPT_START1 )
	PORT_BIT ( 0x10, IP_ACTIVE_LOW, IPT_START2 )
	PORT_BITX(0x20, IP_ACTIVE_LOW, IPT_BUTTON2, "Track Select", IP_KEY_DEFAULT, IP_JOY_DEFAULT, 0 )

	PORT_START      /* IN2 */
	PORT_BIT ( 0x40, IP_ACTIVE_LOW, IPT_VBLANK )
	PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )

	PORT_START      /* IN3 */
	PORT_BIT ( 0x40, IP_ACTIVE_LOW, IPT_COIN1 )
	PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_COIN2 )

	PORT_START      /* IN4 */
	PORT_ANALOG ( 0xff, 0x00, IPT_DIAL, 100, 0, 0, 0 )


	PORT_START      /* IN5 */
	PORT_ANALOG ( 0xff, 0x00, IPT_DIAL | IPF_PLAYER2, 100, 0, 0, 0 )
INPUT_PORTS_END


INPUT_PORTS_START( sprint1_input_ports )
	PORT_START      /* DSW - fake port, gets mapped to Sprint2 ports */
	PORT_DIPNAME( 0x01, 0x01, "Misc.", IP_KEY_NONE )
	PORT_DIPSETTING(    0x01, "Cycle Tracks Every Lap" )
	PORT_DIPSETTING(    0x00, "Cycle Tracks Every 2 Laps" )
	PORT_DIPNAME( 0x02, 0x00, "Misc.", IP_KEY_NONE )
	PORT_DIPSETTING(    0x02, "No Oil Slicks" )
	PORT_DIPSETTING(    0x00, "Oil Slicks" )
	PORT_DIPNAME( 0x0C, 0x00, "Cost", IP_KEY_NONE )
	PORT_DIPSETTING(    0x0C, "Free" )
	PORT_DIPSETTING(    0x08, "2 coins/game" )
	PORT_DIPSETTING(    0x04, "2 games/coin" )
	PORT_DIPSETTING(    0x00, "1 coin/game" )
	PORT_DIPNAME( 0x10, 0x10, "Ext. Play", IP_KEY_NONE )
	PORT_DIPSETTING(    0x10, "None" )
	PORT_DIPSETTING(    0x00, "30% of game length" )
	PORT_DIPNAME( 0xC0, 0xC0, "Game Length", IP_KEY_NONE )
	PORT_DIPSETTING(    0xC0, "60 seconds" )
	PORT_DIPSETTING(    0x80, "90 seconds" )
	PORT_DIPSETTING(    0x40, "120 seconds" )
	PORT_DIPSETTING(    0x00, "150 seconds" )

	PORT_START      /* IN0 - fake port, gets mapped to Sprint2 ports */
	PORT_BITX(0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN, "1st gear", IP_KEY_DEFAULT, IP_JOY_DEFAULT, 0 )
	PORT_BITX(0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT, "2nd gear", IP_KEY_DEFAULT, IP_JOY_DEFAULT, 0 )
	PORT_BITX(0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT, "3rd gear", IP_KEY_DEFAULT, IP_JOY_DEFAULT, 0 )
	PORT_BITX(0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP, "4th gear", IP_KEY_DEFAULT, IP_JOY_DEFAULT, 0 )
	PORT_BIT (0xF0, IP_ACTIVE_HIGH, IPT_UNKNOWN )

	PORT_START      /* IN1 - fake port, gets mapped to Sprint2 ports */
	PORT_BITX(0x01, IP_ACTIVE_LOW, IPT_BUTTON1, "Gas", IP_KEY_DEFAULT, IP_JOY_DEFAULT, 0 )
	PORT_BITX(0x02, IP_ACTIVE_LOW, IPT_SERVICE, "Self Test", OSD_KEY_F2, IP_JOY_NONE, 0 )
	PORT_BIT (0x04, IP_ACTIVE_LOW, IPT_START1 )

	PORT_START      /* IN2 */
	PORT_BIT ( 0x40, IP_ACTIVE_LOW, IPT_VBLANK )
	PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )

	PORT_START      /* IN3 */
	PORT_BIT ( 0x40, IP_ACTIVE_LOW, IPT_COIN1 )
	PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_COIN2 )

	PORT_START      /* IN4 */
	PORT_ANALOG ( 0xff, 0x00, IPT_DIAL, 100, 0, 0, 0 )


	PORT_START      /* IN5 */
	PORT_BIT ( 0xff, IP_ACTIVE_LOW, IPT_UNKNOWN )
INPUT_PORTS_END


static struct GfxLayout charlayout =
{
	8,8,	/* 8*8 characters */
        64,     /* 64 characters */
        1,      /* 1 bit per pixel */
        { 0 },        /* no separation in 1 bpp */
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