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aztarac.c
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C/C++ Source or Header
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2000-04-04
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6KB
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216 lines
/*
* Aztarac driver
*
* Jul 25 1999 by Mathis Rosenhauer
*
* Thanks to David Fish for additional hardware information.
*
*/
#include "driver.h"
#include "vidhrdw/vector.h"
/* from machine/foodf.c */
READ_HANDLER( foodf_nvram_r );
WRITE_HANDLER( foodf_nvram_w );
void foodf_nvram_handler(void *file,int read_or_write);
/* from vidhrdw/aztarac.c */
void aztarac_init_colors (unsigned char *palette, unsigned short *colortable,const unsigned char *color_prom);
int aztarac_vh_start (void);
WRITE_HANDLER( aztarac_ubr_w );
int aztarac_vg_interrupt(void);
extern UINT8 *aztarac_vectorram;
/* from sndhrdw/aztarac.c */
READ_HANDLER( aztarac_sound_r );
WRITE_HANDLER( aztarac_sound_w );
READ_HANDLER( aztarac_snd_command_r );
READ_HANDLER( aztarac_snd_status_r );
WRITE_HANDLER( aztarac_snd_status_w );
int aztarac_snd_timed_irq (void);
static READ_HANDLER( aztarac_joystick_r )
{
return (((input_port_0_r (offset) - 0xf) << 8) |
((input_port_1_r (offset) - 0xf) & 0xff));
}
static struct MemoryReadAddress readmem[] =
{
{ 0x000000, 0x00bfff, MRA_ROM },
{ 0x022000, 0x022fff, foodf_nvram_r },
{ 0x027000, 0x027001, aztarac_joystick_r },
{ 0x027004, 0x027005, input_port_3_r },
{ 0x027008, 0x027009, aztarac_sound_r },
{ 0x02700c, 0x02700d, input_port_2_r },
{ 0x02700e, 0x02700f, watchdog_reset_r },
{ 0xff8000, 0xffafff, MRA_BANK1 },
{ 0xffe000, 0xffffff, MRA_BANK2 },
{ -1 } /* end of table */
};
static struct MemoryWriteAddress writemem[] =
{
{ 0x000000, 0x00bfff, MWA_ROM },
{ 0x022000, 0x022fff, foodf_nvram_w },
{ 0x027008, 0x027009, aztarac_sound_w },
{ 0xff8000, 0xffafff, MWA_BANK1, &aztarac_vectorram },
{ 0xffb000, 0xffb001, aztarac_ubr_w },
{ 0xffe000, 0xffffff, MWA_BANK2 },
{ -1 } /* end of table */
};
static struct MemoryReadAddress sound_readmem[] =
{
{ 0x0000, 0x1fff, MRA_ROM },
{ 0x8000, 0x87ff, MRA_RAM },
{ 0x8800, 0x8800, aztarac_snd_command_r },
{ 0x8c00, 0x8c01, AY8910_read_port_0_r },
{ 0x8c02, 0x8c03, AY8910_read_port_1_r },
{ 0x8c04, 0x8c05, AY8910_read_port_2_r },
{ 0x8c06, 0x8c07, AY8910_read_port_3_r },
{ 0x9000, 0x9000, aztarac_snd_status_r },
{ -1 } /* end of table */
};
static struct MemoryWriteAddress sound_writemem[] =
{
{ 0x0000, 0x1fff, MWA_ROM },
{ 0x8000, 0x87ff, MWA_RAM },
{ 0x8c00, 0x8c00, AY8910_write_port_0_w },
{ 0x8c01, 0x8c01, AY8910_control_port_0_w },
{ 0x8c02, 0x8c02, AY8910_write_port_1_w },
{ 0x8c03, 0x8c03, AY8910_control_port_1_w },
{ 0x8c04, 0x8c04, AY8910_write_port_2_w },
{ 0x8c05, 0x8c05, AY8910_control_port_2_w },
{ 0x8c06, 0x8c06, AY8910_write_port_3_w },
{ 0x8c07, 0x8c07, AY8910_control_port_3_w },
{ 0x9000, 0x9000, aztarac_snd_status_w },
{ -1 } /* end of table */
};
INPUT_PORTS_START( aztarac )
PORT_START /* IN0 */
PORT_ANALOG( 0x1f, 0xf, IPT_AD_STICK_X | IPF_CENTER, 100, 1, 0, 0x1e )
PORT_START /* IN1 */
PORT_ANALOG( 0x1f, 0xf, IPT_AD_STICK_Y | IPF_CENTER | IPF_REVERSE, 100, 1, 0, 0x1e )
PORT_START /* IN2 */
PORT_ANALOGX( 0xff, 0x00, IPT_DIAL | IPF_REVERSE, 25, 10, 0, 0, KEYCODE_Z, KEYCODE_X, 0, 0 )
PORT_START /* IN3 */
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON1 )
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON2 )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_START1 )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START2 )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_COIN1 )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BITX(0x80, IP_ACTIVE_LOW, IPT_SERVICE, DEF_STR( Service_Mode ), KEYCODE_F2, IP_JOY_NONE )
INPUT_PORTS_END
static struct AY8910interface ay8910_interface =
{
4, /* 4 chips */
2000000, /* 2 MHz */
{ 15, 15, 15, 15 },
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 }
};
static struct MachineDriver machine_driver_aztarac =
{
/* basic machine hardware */
{
{
CPU_M68000,
8000000, /* 8 MHz */
readmem, writemem,0,0,
aztarac_vg_interrupt, 1
},
{
CPU_Z80 | CPU_AUDIO_CPU,
2000000, /* 2 MHz */
sound_readmem,sound_writemem, 0, 0,
0,0,
aztarac_snd_timed_irq, 100
}
},
40, 0, /* frames per second, vblank duration (vector game, so no vblank) */
1,
0,
/* video hardware */
400, 300, { 0, 1024-1, 0, 768-1 },
0,
256, 256,
aztarac_init_colors,
VIDEO_TYPE_VECTOR,
0,
aztarac_vh_start,
vector_vh_stop,
vector_vh_update,
/* sound hardware */
0,0,0,0,
{
{
SOUND_AY8910,
&ay8910_interface
}
},
foodf_nvram_handler
};
/***************************************************************************
Game driver(s)
***************************************************************************/
ROM_START( aztarac )
ROM_REGION( 0xc000, REGION_CPU1 )
ROM_LOAD_EVEN( "l8_6.bin", 0x000000, 0x001000, 0x25f8da18 )
ROM_LOAD_ODD ( "n8_0.bin", 0x000000, 0x001000, 0x04e20626 )
ROM_LOAD_EVEN( "l7_7.bin", 0x002000, 0x001000, 0x230e244c )
ROM_LOAD_ODD ( "n7_1.bin", 0x002000, 0x001000, 0x37b12697 )
ROM_LOAD_EVEN( "l6_8.bin", 0x004000, 0x001000, 0x1293fb9d )
ROM_LOAD_ODD ( "n6_2.bin", 0x004000, 0x001000, 0x712c206a )
ROM_LOAD_EVEN( "l5_9.bin", 0x006000, 0x001000, 0x743a6501 )
ROM_LOAD_ODD ( "n5_3.bin", 0x006000, 0x001000, 0xa65cbf99 )
ROM_LOAD_EVEN( "l4_a.bin", 0x008000, 0x001000, 0x9cf1b0a1 )
ROM_LOAD_ODD ( "n4_4.bin", 0x008000, 0x001000, 0x5f0080d5 )
ROM_LOAD_EVEN( "l3_b.bin", 0x00a000, 0x001000, 0x8cc7f7fa )
ROM_LOAD_ODD ( "n3_5.bin", 0x00a000, 0x001000, 0x40452376 )
ROM_REGION( 0x10000, REGION_CPU2 )
ROM_LOAD( "j4_c.bin", 0x0000, 0x1000, 0xe897dfcd )
ROM_LOAD( "j3_d.bin", 0x1000, 0x1000, 0x4016de77 )
ROM_END
static void init_aztarac(void)
{
unsigned char *rom = memory_region(REGION_CPU1);
/* patch IRQ vector 4 to autovector location */
WRITE_WORD(&rom[0x70], 0);
WRITE_WORD(&rom[0x72], 0x0c02);
}
GAME( 1983, aztarac, 0, aztarac, aztarac, aztarac, ROT0, "Centuri", "Aztarac" )