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vendetta.c
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C/C++ Source or Header
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2000-04-23
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15KB
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513 lines
/***************************************************************************
Vendetta (GX081) (c) 1991 Konami
Preliminary driver by:
Ernesto Corvi
someone@secureshell.com
Notes:
- collision detection is handled by a protection chip. Its emulation might
not be 100% accurate.
***************************************************************************/
#include "driver.h"
#include "vidhrdw/generic.h"
#include "vidhrdw/konamiic.h"
#include "cpu/konami/konami.h" /* for the callback and the firq irq definition */
#include "machine/eeprom.h"
/* prototypes */
static void vendetta_init_machine( void );
static void vendetta_banking( int lines );
static void vendetta_video_banking( int select );
int vendetta_vh_start(void);
void vendetta_vh_stop(void);
void vendetta_vh_screenrefresh(struct osd_bitmap *bitmap,int full_refresh);
/***************************************************************************
EEPROM
***************************************************************************/
static int init_eeprom_count;
static struct EEPROM_interface eeprom_interface =
{
7, /* address bits */
8, /* data bits */
"011000", /* read command */
"011100", /* write command */
0, /* erase command */
"0100000000000",/* lock command */
"0100110000000" /* unlock command */
};
static void nvram_handler(void *file,int read_or_write)
{
if (read_or_write)
EEPROM_save(file);
else
{
EEPROM_init(&eeprom_interface);
if (file)
{
init_eeprom_count = 0;
EEPROM_load(file);
}
else
init_eeprom_count = 1000;
}
}
static READ_HANDLER( vendetta_eeprom_r )
{
int res;
res = EEPROM_read_bit();
res |= 0x02;//konami_eeprom_ack() << 5; /* add the ack */
res |= readinputport( 3 ) & 0x0c; /* test switch */
if (init_eeprom_count)
{
init_eeprom_count--;
res &= 0xfb;
}
return res;
}
static int irq_enabled;
static WRITE_HANDLER( vendetta_eeprom_w )
{
/* bit 0 - VOC0 - Video banking related */
/* bit 1 - VOC1 - Video banking related */
/* bit 2 - MSCHNG - Mono Sound select (Amp) */
/* bit 3 - EEPCS - Eeprom CS */
/* bit 4 - EEPCLK - Eeprom CLK */
/* bit 5 - EEPDI - Eeprom data */
/* bit 6 - IRQ enable */
/* bit 7 - Unused */
if ( data == 0xff ) /* this is a bug in the eeprom write code */
return;
/* EEPROM */
EEPROM_write_bit(data & 0x20);
EEPROM_set_clock_line((data & 0x10) ? ASSERT_LINE : CLEAR_LINE);
EEPROM_set_cs_line((data & 0x08) ? CLEAR_LINE : ASSERT_LINE);
irq_enabled = ( data >> 6 ) & 1;
vendetta_video_banking( data & 1 );
}
/********************************************/
static READ_HANDLER( vendetta_K052109_r ) { return K052109_r( offset + 0x2000 ); }
static WRITE_HANDLER( vendetta_K052109_w ) { K052109_w( offset + 0x2000, data ); }
static void vendetta_video_banking( int select )
{
if ( select & 1 )
{
cpu_setbankhandler_r( 2, paletteram_r );
cpu_setbankhandler_w( 2, paletteram_xBBBBBGGGGGRRRRR_swap_w );
cpu_setbankhandler_r( 3, K053247_r );
cpu_setbankhandler_w( 3, K053247_w );
}
else
{
cpu_setbankhandler_r( 2, vendetta_K052109_r );
cpu_setbankhandler_w( 2, vendetta_K052109_w );
cpu_setbankhandler_r( 3, K052109_r );
cpu_setbankhandler_w( 3, K052109_w );
}
}
static WRITE_HANDLER( vendetta_5fe0_w )
{
//char baf[40];
//sprintf(baf,"5fe0 = %02x",data);
//usrintf_showmessage(baf);
/* bit 0,1 coin counters */
coin_counter_w(0,data & 0x01);
coin_counter_w(1,data & 0x02);
/* bit 2 = BRAMBK ?? */
/* bit 3 = enable char ROM reading through the video RAM */
K052109_set_RMRD_line((data & 0x08) ? ASSERT_LINE : CLEAR_LINE);
/* bit 4 = INIT ?? */
/* bit 5 = enable sprite ROM reading */
K053246_set_OBJCHA_line((data & 0x20) ? ASSERT_LINE : CLEAR_LINE);
}
static READ_HANDLER( speedup_r )
{
unsigned char *RAM = memory_region(REGION_CPU1);
int data = ( RAM[0x28d2] << 8 ) | RAM[0x28d3];
if ( data < memory_region_length(REGION_CPU1) )
{
data = ( RAM[data] << 8 ) | RAM[data + 1];
if ( data == 0xffff )
cpu_spinuntil_int();
}
return RAM[0x28d2];
}
static void z80_nmi_callback( int param )
{
cpu_set_nmi_line( 1, ASSERT_LINE );
}
static WRITE_HANDLER( z80_arm_nmi_w )
{
cpu_set_nmi_line( 1, CLEAR_LINE );
timer_set( TIME_IN_USEC( 50 ), 0, z80_nmi_callback );
}
static WRITE_HANDLER( z80_irq_w )
{
cpu_cause_interrupt( 1, 0xff );
}
READ_HANDLER( vendetta_sound_interrupt_r )
{
cpu_cause_interrupt( 1, 0xff );
return 0x00;
}
READ_HANDLER( vendetta_sound_r )
{
/* If the sound CPU is running, read the status, otherwise
just make it pass the test */
if (Machine->sample_rate != 0) return K053260_r(2 + offset);
else
{
static int res = 0x00;
res = ((res + 1) & 0x07);
return offset ? res : 0x00;
}
}
/********************************************/
static struct MemoryReadAddress readmem[] =
{
{ 0x0000, 0x1fff, MRA_BANK1 },
{ 0x28d2, 0x28d2, speedup_r },
{ 0x2000, 0x3fff, MRA_RAM },
{ 0x5f80, 0x5f9f, K054000_r },
{ 0x5fc0, 0x5fc0, input_port_0_r },
{ 0x5fc1, 0x5fc1, input_port_1_r },
{ 0x5fd0, 0x5fd0, vendetta_eeprom_r }, /* vblank, service */
{ 0x5fd1, 0x5fd1, input_port_2_r },
{ 0x5fe4, 0x5fe4, vendetta_sound_interrupt_r },
{ 0x5fe6, 0x5fe7, vendetta_sound_r },
{ 0x5fe8, 0x5fe9, K053246_r },
{ 0x5fea, 0x5fea, watchdog_reset_r },
{ 0x4000, 0x4fff, MRA_BANK3 },
{ 0x6000, 0x6fff, MRA_BANK2 },
{ 0x4000, 0x7fff, K052109_r },
{ 0x8000, 0xffff, MRA_ROM },
{ -1 } /* end of table */
};
static struct MemoryWriteAddress writemem[] =
{
{ 0x0000, 0x1fff, MWA_ROM },
{ 0x2000, 0x3fff, MWA_RAM },
{ 0x5f80, 0x5f9f, K054000_w },
{ 0x5fa0, 0x5faf, K053251_w },
{ 0x5fb0, 0x5fb7, K053246_w },
{ 0x5fe0, 0x5fe0, vendetta_5fe0_w },
{ 0x5fe2, 0x5fe2, vendetta_eeprom_w },
{ 0x5fe4, 0x5fe4, z80_irq_w },
{ 0x5fe6, 0x5fe7, K053260_w },
{ 0x4000, 0x4fff, MWA_BANK3 },
{ 0x6000, 0x6fff, MWA_BANK2 },
{ 0x4000, 0x7fff, K052109_w },
{ 0x8000, 0xffff, MWA_ROM },
{ -1 } /* end of table */
};
static struct MemoryReadAddress readmem_sound[] =
{
{ 0x0000, 0xefff, MRA_ROM },
{ 0xf000, 0xf7ff, MRA_RAM },
{ 0xf801, 0xf801, YM2151_status_port_0_r },
{ 0xfc00, 0xfc2f, K053260_r },
{ -1 } /* end of table */
};
static struct MemoryWriteAddress writemem_sound[] =
{
{ 0x0000, 0xefff, MWA_ROM },
{ 0xf000, 0xf7ff, MWA_RAM },
{ 0xf800, 0xf800, YM2151_register_port_0_w },
{ 0xf801, 0xf801, YM2151_data_port_0_w },
{ 0xfa00, 0xfa00, z80_arm_nmi_w },
{ 0xfc00, 0xfc2f, K053260_w },
{ -1 } /* end of table */
};
/***************************************************************************
Input Ports
***************************************************************************/
INPUT_PORTS_START( vendetta )
PORT_START
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_8WAY | IPF_PLAYER1 )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_8WAY | IPF_PLAYER1 )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_8WAY | IPF_PLAYER1 )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_8WAY | IPF_PLAYER1 )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_COIN1 )
PORT_START
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_8WAY | IPF_PLAYER2 )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT | IPF_8WAY | IPF_PLAYER2 )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_8WAY | IPF_PLAYER2 )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_8WAY | IPF_PLAYER2 )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 | IPF_PLAYER2 )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 | IPF_PLAYER2 )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_COIN2 )
PORT_START
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_START1 )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_START2 )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_COIN3 )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_START
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* EEPROM data */
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* EEPROM ready */
PORT_BITX(0x04, IP_ACTIVE_LOW, IPT_SERVICE, DEF_STR( Service_Mode ), KEYCODE_F2, IP_JOY_NONE )
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_VBLANK ) /* not really vblank, object related. Its timed, otherwise sprites flicker */
PORT_BIT( 0xf0, IP_ACTIVE_LOW, IPT_UNUSED )
INPUT_PORTS_END
/***************************************************************************
Machine Driver
***************************************************************************/
static struct YM2151interface ym2151_interface =
{
1, /* 1 chip */
3579545, /* 3.579545 MHz */
{ YM3012_VOL(35,MIXER_PAN_LEFT,35,MIXER_PAN_RIGHT) },
{ 0 }
};
static struct K053260_interface k053260_interface =
{
3579545,
REGION_SOUND1, /* memory region */
{ MIXER(75,MIXER_PAN_LEFT), MIXER(75,MIXER_PAN_RIGHT) },
0
};
static int vendetta_irq( void )
{
if (irq_enabled)
return KONAMI_INT_IRQ;
else
return ignore_interrupt();
}
static struct MachineDriver machine_driver_vendetta =
{
/* basic machine hardware */
{
{
CPU_KONAMI,
3000000, /* ? */
readmem,writemem,0,0,
vendetta_irq,1
},
{
CPU_Z80 | CPU_AUDIO_CPU,
3579545,
readmem_sound, writemem_sound,0,0,
ignore_interrupt,0 /* interrupts are triggered by the main CPU */
}
},
60, DEFAULT_REAL_60HZ_VBLANK_DURATION, /* frames per second, vblank duration */
1, /* 1 CPU slice per frame - interleaving is forced when a sound command is written */
vendetta_init_machine,
/* video hardware */
64*8, 32*8, { 13*8, (64-13)*8-1, 2*8, 30*8-1 },
0, /* gfx decoded by konamiic.c */
2048, 2048,
0,
VIDEO_TYPE_RASTER | VIDEO_MODIFIES_PALETTE,
0,
vendetta_vh_start,
vendetta_vh_stop,
vendetta_vh_screenrefresh,
/* sound hardware */
SOUND_SUPPORTS_STEREO,0,0,0,
{
{
SOUND_YM2151,
&ym2151_interface
},
{
SOUND_K053260,
&k053260_interface
}
},
nvram_handler
};
/***************************************************************************
Game ROMs
***************************************************************************/
ROM_START( vendetta )
ROM_REGION( 0x49000, REGION_CPU1 ) /* code + banked roms + banked ram */
ROM_LOAD( "081u01", 0x10000, 0x38000, 0xb4d9ade5 )
ROM_CONTINUE( 0x08000, 0x08000 )
ROM_REGION( 0x10000, REGION_CPU2 ) /* 64k for the sound CPU */
ROM_LOAD( "081b02", 0x000000, 0x10000, 0x4c604d9b )
ROM_REGION( 0x100000, REGION_GFX1 ) /* graphics ( don't dispose as the program can read them ) */
ROM_LOAD( "081a09", 0x000000, 0x080000, 0xb4c777a9 ) /* characters */
ROM_LOAD( "081a08", 0x080000, 0x080000, 0x272ac8d9 ) /* characters */
ROM_REGION( 0x400000, REGION_GFX2 ) /* graphics ( don't dispose as the program can read them ) */
ROM_LOAD( "081a04", 0x000000, 0x100000, 0x464b9aa4 ) /* sprites */
ROM_LOAD( "081a05", 0x100000, 0x100000, 0x4e173759 ) /* sprites */
ROM_LOAD( "081a06", 0x200000, 0x100000, 0xe9fe6d80 ) /* sprites */
ROM_LOAD( "081a07", 0x300000, 0x100000, 0x8a22b29a ) /* sprites */
ROM_REGION( 0x100000, REGION_SOUND1 ) /* 053260 samples */
ROM_LOAD( "081a03", 0x000000, 0x100000, 0x14b6baea )
ROM_END
ROM_START( vendett2 )
ROM_REGION( 0x49000, REGION_CPU1 ) /* code + banked roms + banked ram */
ROM_LOAD( "081d01", 0x10000, 0x38000, 0x335da495 )
ROM_CONTINUE( 0x08000, 0x08000 )
ROM_REGION( 0x10000, REGION_CPU2 ) /* 64k for the sound CPU */
ROM_LOAD( "081b02", 0x000000, 0x10000, 0x4c604d9b )
ROM_REGION( 0x100000, REGION_GFX1 ) /* graphics ( don't dispose as the program can read them ) */
ROM_LOAD( "081a09", 0x000000, 0x080000, 0xb4c777a9 ) /* characters */
ROM_LOAD( "081a08", 0x080000, 0x080000, 0x272ac8d9 ) /* characters */
ROM_REGION( 0x400000, REGION_GFX2 ) /* graphics ( don't dispose as the program can read them ) */
ROM_LOAD( "081a04", 0x000000, 0x100000, 0x464b9aa4 ) /* sprites */
ROM_LOAD( "081a05", 0x100000, 0x100000, 0x4e173759 ) /* sprites */
ROM_LOAD( "081a06", 0x200000, 0x100000, 0xe9fe6d80 ) /* sprites */
ROM_LOAD( "081a07", 0x300000, 0x100000, 0x8a22b29a ) /* sprites */
ROM_REGION( 0x100000, REGION_SOUND1 ) /* 053260 samples */
ROM_LOAD( "081a03", 0x000000, 0x100000, 0x14b6baea )
ROM_END
ROM_START( vendettj )
ROM_REGION( 0x49000, REGION_CPU1 ) /* code + banked roms + banked ram */
ROM_LOAD( "081p01", 0x10000, 0x38000, 0x5fe30242 )
ROM_CONTINUE( 0x08000, 0x08000 )
ROM_REGION( 0x10000, REGION_CPU2 ) /* 64k for the sound CPU */
ROM_LOAD( "081b02", 0x000000, 0x10000, 0x4c604d9b )
ROM_REGION( 0x100000, REGION_GFX1 ) /* graphics ( don't dispose as the program can read them ) */
ROM_LOAD( "081a09", 0x000000, 0x080000, 0xb4c777a9 ) /* characters */
ROM_LOAD( "081a08", 0x080000, 0x080000, 0x272ac8d9 ) /* characters */
ROM_REGION( 0x400000, REGION_GFX2 ) /* graphics ( don't dispose as the program can read them ) */
ROM_LOAD( "081a04", 0x000000, 0x100000, 0x464b9aa4 ) /* sprites */
ROM_LOAD( "081a05", 0x100000, 0x100000, 0x4e173759 ) /* sprites */
ROM_LOAD( "081a06", 0x200000, 0x100000, 0xe9fe6d80 ) /* sprites */
ROM_LOAD( "081a07", 0x300000, 0x100000, 0x8a22b29a ) /* sprites */
ROM_REGION( 0x100000, REGION_SOUND1 ) /* 053260 samples */
ROM_LOAD( "081a03", 0x000000, 0x100000, 0x14b6baea )
ROM_END
/***************************************************************************
Game driver(s)
***************************************************************************/
static void vendetta_banking( int lines )
{
unsigned char *RAM = memory_region(REGION_CPU1);
if ( lines >= 0x1c )
{
logerror("PC = %04x : Unknown bank selected %02x\n", cpu_get_pc(), lines );
}
else
cpu_setbank( 1, &RAM[ 0x10000 + ( lines * 0x2000 ) ] );
}
static void vendetta_init_machine( void )
{
konami_cpu_setlines_callback = vendetta_banking;
paletteram = &memory_region(REGION_CPU1)[0x48000];
irq_enabled = 0;
/* init banks */
cpu_setbank( 1, &memory_region(REGION_CPU1)[0x10000] );
vendetta_video_banking( 0 );
}
static void init_vendetta(void)
{
konami_rom_deinterleave_2(REGION_GFX1);
konami_rom_deinterleave_4(REGION_GFX2);
}
GAME( 1991, vendetta, 0, vendetta, vendetta, vendetta, ROT0, "Konami", "Vendetta (Asia set 1)" )
GAME( 1991, vendett2, vendetta, vendetta, vendetta, vendetta, ROT0, "Konami", "Vendetta (Asia set 2)" )
GAME( 1991, vendettj, vendetta, vendetta, vendetta, vendetta, ROT0, "Konami", "Crime Fighters 2 (Japan)" )