diff options
Diffstat (limited to 'src/mame/drivers/xorworld.c')
-rw-r--r-- | src/mame/drivers/xorworld.c | 276 |
1 files changed, 276 insertions, 0 deletions
diff --git a/src/mame/drivers/xorworld.c b/src/mame/drivers/xorworld.c new file mode 100644 index 00000000000..6851dbb1263 --- /dev/null +++ b/src/mame/drivers/xorworld.c @@ -0,0 +1,276 @@ +/*************************************************************************** + +XOR WORLD (c) 1990 Gaelco + +Driver by Manuel Abadia <manu@teleline.es> + +Memory Map: +----------- +0x000000-0x01ffff ROM +0x200000-0x200001 Input #1 +0x400000-0x400001 Input #2 +0x600000-0x600001 DIPSW #1 + EEPROM read +0x800000-0x800001 Philips SAA1099P write register +0x800002-0x800003 Philips SAA1099P control register +0xa00008-0xa0000d EEPROM write/ctrl +0xffc000-0xffc7ff Screen (8x8 tiles 32x32 (256x256)) +0xffc800-0xffc87f Sprite RAM +0xffc884-0xffffff Work RAM + +Interrupts: + Level 2 INT updates the timer + Level 6 INT drives the game + +Unmapped addresses in the driver: + +0xffc800-0xffc801 INT 2 ACK\Watchdog timer +0xffc802-0xffc803 INT 6 ACK/Watchdog timer + +EEPROM chip: 93C46 + +***************************************************************************/ + +#include "driver.h" +#include "machine/eeprom.h" +#include "cpu/m68000/m68000.h" +#include "sound/saa1099.h" + + +extern WRITE16_HANDLER(xorworld_videoram16_w); + +extern PALETTE_INIT( xorworld ); +extern VIDEO_START( xorworld ); +extern VIDEO_UPDATE( xorworld ); + + +/**************************************************************** + NVRAM load/save/init +****************************************************************/ +static NVRAM_HANDLER( xorworld ) +{ + if (read_or_write) + { + EEPROM_save(file); + } + else + { + EEPROM_init(&eeprom_interface_93C46); + + if (file) + { + EEPROM_load(file); + } + } +} + +/**************************************************************** + Init machine +****************************************************************/ + + + +/**************************************************************** + EEPROM read/write/control +****************************************************************/ + +/* the EEPROM is read thru bit 4 */ +static READ16_HANDLER( xorworld_input_r ) +{ + return readinputport(0) | ((EEPROM_read_bit() & 0x01) << 4); +} + +static WRITE16_HANDLER( eeprom_chip_select_w ) +{ + /* bit 0 is CS (active low) */ + EEPROM_set_cs_line((data & 0x01) ? CLEAR_LINE : ASSERT_LINE); +} + +static WRITE16_HANDLER( eeprom_serial_clock_w ) +{ + /* bit 0 is SK (active high) */ + EEPROM_set_clock_line((data & 0x01) ? ASSERT_LINE : CLEAR_LINE); +} + +static WRITE16_HANDLER( eeprom_data_w ) +{ + /* bit 0 is EEPROM data (DIN) */ + EEPROM_write_bit(data & 0x01); +} + + +static ADDRESS_MAP_START( xorworld_map, ADDRESS_SPACE_PROGRAM, 16 ) + AM_RANGE(0x000000, 0x01ffff) AM_ROM + AM_RANGE(0x200000, 0x200001) AM_READ(input_port_1_word_r) + AM_RANGE(0x400000, 0x400001) AM_READ(input_port_2_word_r) + AM_RANGE(0x600000, 0x600001) AM_READ(xorworld_input_r) // DIPSW #1 + EEPROM data + AM_RANGE(0x800000, 0x800001) AM_WRITE(saa1099_write_port_0_lsb_w) + AM_RANGE(0x800002, 0x800003) AM_WRITE(saa1099_control_port_0_lsb_w) + AM_RANGE(0xa00008, 0xa00009) AM_WRITE(eeprom_chip_select_w) + AM_RANGE(0xa0000a, 0xa0000b) AM_WRITE(eeprom_serial_clock_w) + AM_RANGE(0xa0000c, 0xa0000d) AM_WRITE(eeprom_data_w) + AM_RANGE(0xffc000, 0xffc7ff) AM_RAM AM_WRITE(xorworld_videoram16_w) AM_BASE(&videoram16) + AM_RANGE(0xffc800, 0xffc87f) AM_RAM AM_BASE(&spriteram16) + AM_RANGE(0xffc880, 0xffc881) AM_WRITENOP + AM_RANGE(0xffc882, 0xffc883) AM_WRITENOP + AM_RANGE(0xffc884, 0xffffff) AM_RAM +ADDRESS_MAP_END + + +static INPUT_PORTS_START( xorworld ) + PORT_START // DSW0 + PORT_DIPNAME( 0x07, 0x07, DEF_STR( Coinage ) ) + PORT_DIPSETTING( 0x00, DEF_STR( 3C_1C ) ) + PORT_DIPSETTING( 0x01, DEF_STR( 2C_2C ) ) + PORT_DIPSETTING( 0x07, DEF_STR( 1C_1C ) ) + PORT_DIPSETTING( 0x06, DEF_STR( 1C_2C ) ) + PORT_DIPSETTING( 0x05, DEF_STR( 1C_3C ) ) + PORT_DIPSETTING( 0x04, DEF_STR( 1C_4C ) ) + PORT_DIPSETTING( 0x03, DEF_STR( 1C_5C ) ) + PORT_DIPSETTING( 0x02, DEF_STR( 1C_6C ) ) + PORT_DIPNAME( 0x08, 0x00, DEF_STR( Demo_Sounds ) ) + PORT_DIPSETTING( 0x08, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + //PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_SPECIAL ) // used for accessing the NVRAM + PORT_DIPNAME( 0x60, 0x40, DEF_STR( Difficulty ) ) + PORT_DIPSETTING( 0x40, DEF_STR( Easy ) ) + PORT_DIPSETTING( 0x60, DEF_STR( Normal ) ) + PORT_DIPSETTING( 0x20, DEF_STR( Hard ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Hardest ) ) + PORT_SERVICE( 0x80, IP_ACTIVE_LOW ) + + PORT_START // IN0 + PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(1) + PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(1) + PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(1) + PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(1) + PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1) // xor + PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1) // rotate + PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_COIN1 ) + PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_COIN2 ) + + PORT_START // IN1 + PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(2) + PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(2) + PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(2) + PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(2) + PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2) + PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2) + PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_START1 ) + PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_START2 ) +INPUT_PORTS_END + + +static const gfx_layout tilelayout = +{ + 8,8, /* 8x8 tiles */ + 0x10000/16, /* 4096 tiles */ + 4, /* 4 bpp */ + { 1*0x10000*8, 1*0x10000*8+4, 0, 4 }, /* plane offsets */ + { 0*8, 0*8+1, 0*8+2, 0*8+3, 1*8+0, 1*8+1, 1*8+2, 1*8+3 }, + { 0*16, 1*16, 2*16, 3*16, 4*16, 5*16, 6*16, 7*16 }, + 16*8 +}; + +static const gfx_layout spritelayout = +{ + 16,16, /* 16x16 sprites */ + 0x10000/64, /* 1024 sprites */ + 4, /* 4 bpp */ + { 1*0x10000*8, 1*0x10000*8+4, 0, 4 }, /* plane offsets */ + { 0*8, 0*8+1, 0*8+2, 0*8+3, 1*8+0, 1*8+1, 1*8+2, 1*8+3, + 32*8+0, 32*8+1, 32*8+2, 32*8+3, 33*8+0, 33*8+1, 33*8+2, 33*8+3}, + { 0*16, 1*16, 2*16, 3*16, 4*16, 5*16, 6*16, 7*16, + 8*16, 9*16, 10*16, 11*16, 12*16, 13*16, 14*16, 15*16 }, + 64*8 +}; + + +static GFXDECODE_START( xorworld ) + GFXDECODE_ENTRY( REGION_GFX1, 0x000000, tilelayout, 0, 64 ) + GFXDECODE_ENTRY( REGION_GFX1, 0x000000, spritelayout, 0, 64 ) +GFXDECODE_END + + +static INTERRUPT_GEN( xorworld_interrupt ) +{ + if (cpu_getiloops() == 0) + { + cpunum_set_input_line(0, 2, HOLD_LINE); + } + else if (cpu_getiloops() % 2) + { + cpunum_set_input_line(0, 6, HOLD_LINE); + } +} + + +static MACHINE_DRIVER_START( xorworld ) + // basic machine hardware + MDRV_CPU_ADD(M68000, 10000000) // 10 MHz + MDRV_CPU_PROGRAM_MAP(xorworld_map, 0) + MDRV_CPU_VBLANK_INT(xorworld_interrupt, 4) // 1 IRQ2 + 1 IRQ4 + 1 IRQ6 + + MDRV_SCREEN_REFRESH_RATE(60) + MDRV_SCREEN_VBLANK_TIME(DEFAULT_REAL_60HZ_VBLANK_DURATION) + MDRV_INTERLEAVE(1) + + MDRV_NVRAM_HANDLER(xorworld) + + // video hardware + MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER) + MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16) + MDRV_SCREEN_SIZE(32*8, 32*8) + MDRV_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 2*8, 30*8-1) + MDRV_GFXDECODE(xorworld) + MDRV_PALETTE_LENGTH(256) + + MDRV_PALETTE_INIT(xorworld) + MDRV_VIDEO_START(xorworld) + MDRV_VIDEO_UPDATE(xorworld) + + // sound hardware + MDRV_SPEAKER_STANDARD_MONO("mono") + MDRV_SOUND_ADD(SAA1099, 8000000 /* guess */) + MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0) +MACHINE_DRIVER_END + + +ROM_START( xorworld ) + ROM_REGION( 0x100000, REGION_CPU1, 0 ) /* 68000 code */ + ROM_LOAD16_BYTE( "c13.bin", 0x000000, 0x010000, CRC(615a864d) SHA1(db07eef19d26a4daa0bcc17ac24d237483f93bf6) ) + ROM_LOAD16_BYTE( "b13.bin", 0x000001, 0x010000, CRC(632e8ee5) SHA1(ec53e632c762f72ad1fe3fab85111bdcc1e818ae) ) + + ROM_REGION( 0x020000, REGION_GFX1, ROMREGION_DISPOSE ) + ROM_LOAD( "d9.bin", 0x000000, 0x010000, CRC(da8d4d65) SHA1(41bcc15f26066bd820b44c0f258e70d0102953c9) ) + ROM_LOAD( "d10.bin", 0x010000, 0x010000, CRC(3b1d6f24) SHA1(bedf60a4cbf20492b8a846b6a7b578f8fe8dbde9) ) + + ROM_REGION( 0x0300, REGION_PROMS, 0 ) + ROM_LOAD( "b4.bin", 0x0000, 0x0100, CRC(75e468af) SHA1(b5fd1a086c27ca2e837cbbf1b7e57dfdd369b0d0) ) /* Red palette ROM (4 bits) */ + ROM_LOAD( "b7.bin", 0x0100, 0x0100, CRC(7e1cd146) SHA1(fd26a28f90c50ffcb0fe7718820c81eb9fe79e66) ) /* Green palette ROM (4 bits) */ + ROM_LOAD( "b5.bin", 0x0200, 0x0100, CRC(c1b9d9f9) SHA1(c4b02bf60db449fb308a5eb3e41c43299ad8e3e3) ) /* Blue palette ROM (4 bits) */ +ROM_END + + +#define PATCH(data) *rom = data; rom++ + +static DRIVER_INIT( xorworld ) +{ + /* patch some strange protection (without this, strange characters appear + after level 5 and some pieces don't rotate properly some times) */ + + UINT16 *rom = (UINT16 *)(memory_region(REGION_CPU1) + 0x1390); + + PATCH(0x4239); PATCH(0x00ff); PATCH(0xe196); /* clr.b $ffe196 */ + PATCH(0x4239); PATCH(0x00ff); PATCH(0xe197); /* clr.b $ffe197 */ + PATCH(0x4239); PATCH(0x00ff); PATCH(0xe0bc); /* clr.b $ffe0bc */ + PATCH(0x41f9); PATCH(0x00ff); PATCH(0xcfce); /* lea $ffcfce,A0 */ + PATCH(0x3e3c); PATCH(0x000f); /* move #$f,D7 */ + PATCH(0x4218); /* clr.b (A0)+ */ + PATCH(0x51cf); PATCH(0xfffc); /* dbra D7,$13ac */ + PATCH(0x4e75); /* rts */ + + PATCH(0x31ff); /* adjust checksum */ +} + + +GAME( 1990, xorworld, 0, xorworld, xorworld, xorworld, ROT0, "Gaelco", "Xor World (prototype)", 0 ) |