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AmigActive 10
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AACD 10.iso
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bsktball.c
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C/C++ Source or Header
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2000-04-04
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11KB
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421 lines
/***************************************************************************
Atari Basketball Driver
Note: The original hardware uses the Player 1 and Player 2 Start buttons
as the Jump/Shoot buttons. I've taken button 1 and mapped it to the Start
buttons to keep people from getting confused.
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"
/* machine/bsktball.c */
WRITE_HANDLER( bsktball_nmion_w );
extern int bsktball_interrupt(void);
WRITE_HANDLER( bsktball_ld1_w );
WRITE_HANDLER( bsktball_ld2_w );
READ_HANDLER( bsktball_in0_r );
WRITE_HANDLER( bsktball_led1_w );
WRITE_HANDLER( bsktball_led2_w );
/* vidhrdw/bsktball.c */
extern unsigned char *bsktball_motion;
extern void bsktball_vh_screenrefresh(struct osd_bitmap *bitmap,int full_refresh);
/* sound hardware - temporary */
static int note_timer=255;
static int note_count=256;
static WRITE_HANDLER( bsktball_note_w );
static void bsktball_note_32H(int foo);
static void bsktball_noise_256H(int foo);
static int init_timer=1;
static int crowd_mask=0;
#define TIME_32H 10582*2
#define TIME_256H TIME_32H*4
static WRITE_HANDLER( bsktball_note_w )
{
note_timer=data;
note_count=256;
if ((init_timer) && (note_timer!=255))
{
timer_set (TIME_IN_NSEC(TIME_32H), 0, bsktball_note_32H);
init_timer=0;
}
}
static int noise_b10=0;
static int noise_a10=0;
static int noise=0;
static int noise_timer_set=0;
static WRITE_HANDLER( bsktball_noise_reset_w )
{
noise_a10=0;
noise_b10=0;
DAC_data_w(2,0);
if (!noise_timer_set)
timer_set (TIME_IN_NSEC(TIME_256H), 0, bsktball_noise_256H);
noise_timer_set=1;
}
static void bsktball_noise_256H(int foo)
{
int b10_input;
int a10_input;
b10_input = (noise_b10 & 0x01) ^ (((~noise_a10) & 0x40) >> 6);
a10_input = (noise_b10 & 0x80) >> 7;
noise_b10 = ((noise_b10 << 1) | b10_input) & 0xFF;
noise_a10 = ((noise_a10 << 1) | a10_input) & 0xFF;
noise = (noise_a10 & 0x80) >> 7;
if (noise)
DAC_data_w(2,crowd_mask);
else
DAC_data_w(2,0);
timer_set (TIME_IN_NSEC(TIME_256H), 0, bsktball_noise_256H);
noise_timer_set=1;
}
static void bsktball_note_32H(int foo)
{
note_count--;
if (note_count==note_timer)
note_count=256;
if (note_count > ((256-note_timer)>>1)+note_timer)
DAC_data_w(0,255); /* MB: Generate a square, 50% duty cycle _|-|_| */
else
DAC_data_w(0,0);
if (note_timer!=255)
timer_set (TIME_IN_NSEC(TIME_32H), 0, bsktball_note_32H);
else
init_timer=1;
}
static WRITE_HANDLER( bsktball_bounce_w )
{
/* D0-D3 = crowd */
crowd_mask = (data & 0x0F) << 4;
if (noise)
DAC_data_w(2,crowd_mask);
else
DAC_data_w(2,0);
/* D4 = bounce */
if (data & 0x10)
DAC_data_w(1,255);
else
DAC_data_w(1,0);
}
static struct MemoryReadAddress readmem[] =
{
{ 0x0000, 0x01ff, MRA_RAM }, /* Zero Page RAM */
{ 0x0800, 0x0800, bsktball_in0_r },
{ 0x0802, 0x0802, input_port_5_r },
{ 0x0803, 0x0803, input_port_6_r },
{ 0x1800, 0x1cff, MRA_RAM }, /* video ram */
{ 0x2000, 0x3fff, MRA_ROM }, /* PROGRAM */
{ 0xfff0, 0xffff, MRA_ROM }, /* PROM8 for 6502 vectors */
{ -1 } /* end of table */
};
static struct MemoryWriteAddress writemem[] =
{
{ 0x0000, 0x01ff, MWA_RAM }, /* WRAM */
{ 0x1000, 0x1000, MWA_RAM }, /* Timer Reset */
{ 0x1010, 0x101f, bsktball_bounce_w }, /* Crowd Amp / Bounce */
{ 0x1022, 0x1023, MWA_RAM }, /* Coin Counter */
{ 0x1024, 0x1025, bsktball_led1_w }, /* LED 1 */
{ 0x1026, 0x1027, bsktball_led2_w }, /* LED 2 */
{ 0x1028, 0x1029, bsktball_ld1_w }, /* LD 1 */
{ 0x102a, 0x102b, bsktball_ld2_w }, /* LD 2 */
{ 0x102c, 0x102d, bsktball_noise_reset_w }, /* Noise Reset */
{ 0x102e, 0x102f, bsktball_nmion_w }, /* NMI On */
{ 0x1030, 0x103f, bsktball_note_w }, /* Music Ckt Note Dvsr */
{ 0x1800, 0x1bbf, videoram_w, &videoram, &videoram_size }, /* DISPLAY */
{ 0x1bc0, 0x1bff, MWA_RAM, &bsktball_motion },
{ 0x2000, 0x3fff, MWA_ROM }, /* PROM1-PROM8 */
{ -1 } /* end of table */
};
INPUT_PORTS_START( bsktball )
PORT_START /* IN0 */
PORT_ANALOG( 0xFF, 0x00, IPT_TRACKBALL_X, 100, 10, 0, 0 ) /* Sensitivity, clip, min, max */
PORT_START /* IN0 */
PORT_ANALOG( 0xFF, 0x00, IPT_TRACKBALL_Y, 100, 10, 0, 0 )
PORT_START /* IN0 */
PORT_ANALOG( 0xFF, 0x00, IPT_TRACKBALL_X | IPF_PLAYER2, 100, 10, 0, 0 ) /* Sensitivity, clip, min, max */
PORT_START /* IN0 */
PORT_ANALOG( 0xFF, 0x00, IPT_TRACKBALL_Y | IPF_PLAYER2, 100, 10, 0, 0 )
PORT_START /* IN0 */
PORT_BIT ( 0x01, IP_ACTIVE_LOW, IPT_START1 )
PORT_BIT ( 0x02, IP_ACTIVE_LOW, IPT_START2 )
PORT_BIT ( 0x04, IP_ACTIVE_LOW, IPT_BUTTON1 ) /* SPARE */
PORT_BIT ( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 | IPF_PLAYER2 ) /* SPARE */
/* 0x10 - DR0 = PL2 H DIR */
/* 0x20 - DR1 = PL2 V DIR */
/* 0x40 - DR2 = PL1 H DIR */
/* 0x80 - DR3 = PL1 V DIR */
PORT_START /* IN2 */
PORT_BIT ( 0x01, IP_ACTIVE_HIGH, IPT_VBLANK )
PORT_BIT ( 0x02, IP_ACTIVE_LOW, IPT_TILT )
PORT_BIT ( 0x04, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* SPARE */
PORT_BIT ( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* TEST STEP */
PORT_SERVICE( 0x10, IP_ACTIVE_LOW )
PORT_BIT ( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* COIN 0 */
PORT_BIT ( 0x40, IP_ACTIVE_LOW, IPT_COIN2 ) /* COIN 1 */
PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_COIN1 ) /* COIN 2 */
PORT_START /* DSW */
PORT_DIPNAME( 0x07, 0x00, "Coin Mode" )
PORT_DIPSETTING( 0x07, DEF_STR( Free_Play ) )
PORT_DIPSETTING( 0x06, "2:30/Credit" )
PORT_DIPSETTING( 0x05, "2:00/Credit" )
PORT_DIPSETTING( 0x04, "1:30/Credit" )
PORT_DIPSETTING( 0x03, "1:15/Credit" )
PORT_DIPSETTING( 0x02, "0:45/Credit" )
PORT_DIPSETTING( 0x01, "0:30/Credit" )
PORT_DIPSETTING( 0x00, "1:00/Credit" )
PORT_DIPNAME( 0x18, 0x00, "Dollar Coin Mode" )
PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C ) )
PORT_DIPSETTING( 0x10, DEF_STR( 1C_4C ) )
PORT_DIPSETTING( 0x08, DEF_STR( 1C_5C ) )
PORT_DIPSETTING( 0x18, DEF_STR( 1C_6C ) )
PORT_DIPNAME( 0x20, 0x00, "Cost" )
PORT_DIPSETTING( 0x20, "Two Coin Minimum" )
PORT_DIPSETTING( 0x00, "One Coin Minimum" )
PORT_DIPNAME( 0xC0, 0x00, "Language" )
PORT_DIPSETTING( 0xC0, "German" )
PORT_DIPSETTING( 0x80, "French" )
PORT_DIPSETTING( 0x40, "Spanish" )
PORT_DIPSETTING( 0x00, "English" )
INPUT_PORTS_END
static struct GfxLayout charlayout =
{
8,8, /* 8*8 characters */
64, /* 64 characters */
2, /* 2 bits per pixel */
{ 0, 8*0x800 }, /* bitplanes separated by $800 bytes */
{ 0, 1, 2, 3, 4, 5, 6, 7 },
{ 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 motionlayout =
{
8,32, /* 8*32 characters */
64, /* 64 characters */
2, /* 2 bits per pixel */
{ 0, 8*0x800 }, /* bitplanes separated by $800 bytes */
{ 0, 1, 2, 3, 4, 5, 6, 7 },
{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8,
8*8, 9*8, 10*8, 11*8, 12*8, 13*8, 14*8, 15*8,
16*8, 17*8, 18*8, 19*8, 20*8, 21*8, 22*8, 23*8,
24*8, 25*8, 26*8, 27*8, 28*8, 29*8, 30*8, 31*8 },
32*8 /* every char takes 32 consecutive bytes */
};
static struct GfxDecodeInfo gfxdecodeinfo[] =
{
{ REGION_GFX1, 0x0600, &charlayout, 0x00, 0x02 },
{ REGION_GFX1, 0x0000, &motionlayout, 0x08, 0x40 },
{ -1 } /* end of array */
};
static unsigned char palette[] =
{
0x00,0x00,0x00, /* BLACK */
0x80,0x80,0x80, /* LIGHT GREY */
0x50,0x50,0x50, /* DARK GREY */
0xff,0xff,0xff, /* WHITE */
};
static unsigned short colortable[] =
{
/* Playfield */
0x01, 0x00, 0x00, 0x00,
0x01, 0x03, 0x03, 0x03,
/* Motion */
0x01, 0x00, 0x00, 0x00,
0x01, 0x00, 0x01, 0x00,
0x01, 0x00, 0x02, 0x00,
0x01, 0x00, 0x03, 0x00,
0x01, 0x01, 0x00, 0x00,
0x01, 0x01, 0x01, 0x00,
0x01, 0x01, 0x02, 0x00,
0x01, 0x01, 0x03, 0x00,
0x01, 0x02, 0x00, 0x00,
0x01, 0x02, 0x01, 0x00,
0x01, 0x02, 0x02, 0x00,
0x01, 0x02, 0x03, 0x00,
0x01, 0x03, 0x00, 0x00,
0x01, 0x03, 0x01, 0x00,
0x01, 0x03, 0x02, 0x00,
0x01, 0x03, 0x03, 0x00,
0x01, 0x00, 0x00, 0x01,
0x01, 0x00, 0x01, 0x01,
0x01, 0x00, 0x02, 0x01,
0x01, 0x00, 0x03, 0x01,
0x01, 0x01, 0x00, 0x01,
0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x02, 0x01,
0x01, 0x01, 0x03, 0x01,
0x01, 0x02, 0x00, 0x01,
0x01, 0x02, 0x01, 0x01,
0x01, 0x02, 0x02, 0x01,
0x01, 0x02, 0x03, 0x01,
0x01, 0x03, 0x00, 0x01,
0x01, 0x03, 0x01, 0x01,
0x01, 0x03, 0x02, 0x01,
0x01, 0x03, 0x03, 0x01,
0x01, 0x00, 0x00, 0x02,
0x01, 0x00, 0x01, 0x02,
0x01, 0x00, 0x02, 0x02,
0x01, 0x00, 0x03, 0x02,
0x01, 0x01, 0x00, 0x02,
0x01, 0x01, 0x01, 0x02,
0x01, 0x01, 0x02, 0x02,
0x01, 0x01, 0x03, 0x02,
0x01, 0x02, 0x00, 0x02,
0x01, 0x02, 0x01, 0x02,
0x01, 0x02, 0x02, 0x02,
0x01, 0x02, 0x03, 0x02,
0x01, 0x03, 0x00, 0x02,
0x01, 0x03, 0x01, 0x02,
0x01, 0x03, 0x02, 0x02,
0x01, 0x03, 0x03, 0x02,
0x01, 0x00, 0x00, 0x03,
0x01, 0x00, 0x01, 0x03,
0x01, 0x00, 0x02, 0x03,
0x01, 0x00, 0x03, 0x03,
0x01, 0x01, 0x00, 0x03,
0x01, 0x01, 0x01, 0x03,
0x01, 0x01, 0x02, 0x03,
0x01, 0x01, 0x03, 0x03,
0x01, 0x02, 0x00, 0x03,
0x01, 0x02, 0x01, 0x03,
0x01, 0x02, 0x02, 0x03,
0x01, 0x02, 0x03, 0x03,
0x01, 0x03, 0x00, 0x03,
0x01, 0x03, 0x01, 0x03,
0x01, 0x03, 0x02, 0x03,
0x01, 0x03, 0x03, 0x03,
};
static void init_palette(unsigned char *game_palette, unsigned short *game_colortable,const unsigned char *color_prom)
{
memcpy(game_palette,palette,sizeof(palette));
memcpy(game_colortable,colortable,sizeof(colortable));
}
static struct DACinterface dac_interface =
{
3,
{ 100, 100, 100 }
};
static struct MachineDriver machine_driver_bsktball =
{
/* basic machine hardware */
{
{
CPU_M6502,
750000, /* 750 KHz */
readmem,writemem,0,0,
bsktball_interrupt,8
}
},
60, DEFAULT_REAL_60HZ_VBLANK_DURATION, /* frames per second, vblank duration */
1, /* single CPU, no need for interleaving */
0,
/* video hardware */
32*8, 28*8, { 0*8, 32*8-1, 0*8, 28*8-1 },
gfxdecodeinfo,
sizeof(palette) / sizeof(palette[0]) / 3, sizeof(colortable) / sizeof(colortable[0]),
init_palette,
VIDEO_TYPE_RASTER,
0,
generic_vh_start,
generic_vh_stop,
bsktball_vh_screenrefresh,
/* sound hardware */
0,0,0,0,
{
{
SOUND_DAC,
&dac_interface
}
}
};
/***************************************************************************
Game driver(s)
***************************************************************************/
ROM_START( bsktball )
ROM_REGION( 0x10000, REGION_CPU1 ) /* 64k for code */
ROM_LOAD( "034765.d1", 0x2000, 0x0800, 0x798cea39 )
ROM_LOAD( "034764.c1", 0x2800, 0x0800, 0xa087109e )
ROM_LOAD( "034766.f1", 0x3000, 0x0800, 0xa82e9a9f )
ROM_LOAD( "034763.b1", 0x3800, 0x0800, 0x1fc69359 )
ROM_RELOAD( 0xf800, 0x0800 )
ROM_REGION( 0x1000, REGION_GFX1 | REGIONFLAG_DISPOSE )
ROM_LOAD( "034757.a6", 0x0000, 0x0800, 0x010e8ad3 )
ROM_LOAD( "034758.b6", 0x0800, 0x0800, 0xf7bea344 )
ROM_END
GAME( 1979, bsktball, 0, bsktball, bsktball, 0, ROT0, "Atari", "Basketball" )