/*************************************************************************** Sigma Spiders hardware original driver by K.Wilkins May 1998 updates by Zsolt Vasvari Games Supported: * Spiders (2 sets) * Spinner (bootleg) Known bugs: * None at this time Memory map information ---------------------- Main CPU - Read Range $0000-$1bff Video Memory (bit0) $4000-$5bff Video Memory (bit1) $8000-$9bff Video Memory (bit2) $c000-$c001 6845 CRT Controller (mc6845) $c020-$c027 NVRAM $c044-$c047 MC6821 PIA 1 (Control input port - all input) $c048-$c04b MC6821 PIA 2 (Sprite data port - see machine/spiders.c) $c050-$c053 MC6821 PIA 3 (Sound control - all output) $c060 Dip Switch 1 $c080 Dip Switch 2 $c0a0 Dip Switch 3 $c100-ffff ROM SPACE Main CPU - Write Range $0000-$1bff Video Memory (bit0) $4000-$5bff Video Memory (bit1) $8000-$9bff Video Memory (bit2) $c000-$c001 6845 CRT Controller (mc6845) $c044-$c047 MC6821 PIA 1 $c048-$c04b MC6821 PIA 2 (Video port) $c050-$c053 MC6821 PIA 3 DIP SWITCH 1 ------------ 1 2 3 4 5 6 7 8 COIN/CREDIT ON ON ON FREE PLAY ON ON OFF 1/2 ON OFF ON 1/3 OFF ON ON 2/1 ON OFF OFF 4/5 OFF OFF OFF 1/1 DIP SWITCH 2 ------------ 1 2 3 4 5 6 7 8 ON ON MODE A A' ON OFF A B' OFF ON B A' OFF OFF B B' ON ON 14 # OF SPIDERS WHICH LAND TO ON OFF 20 COMPLETE SPIDER BELT OFF ON 26 OFF OFF 16 ON 4 # 0F SPARE GUNS OFF 3 ON ON NONE SCORE FOR BONUS GUN ON OFF 20K OFF ON 25K OFF OFF 15K ON GIANT SPIDER AFTER FIRST SCREEN OFF GIANT SPIDER AFTER EVERY SCREEN PATTERN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 MODE A 27 36 45 54 63 72 81 98 45 54 63 72 81 98 PCS MODE B 20 27 34 41 48 55 62 69 34 41 48 55 62 69 PCS MODE A' 1 1 1 3.5 3.5 4 4.5 5 1 3.5 3.5 4 4.5 5 SECONDS MODE B' .7 .7 .7 2 3 3.2 3.4 4 .7 2 3 2.3 3.4 4 SECONDS MODE A & B FOR THE NUMBER OF GROWABLE COCOONS MODE A' & B' FOR THE FREQUENCY OF SPIDERS APPEARANCE DIP SWITCH 3 ------------ 1 2 3 4 5 6 7 8 X VIDEO FLIP ON UPRIGHT OFF TABLE SWITCHES 3,4,5 FOR ADJUSTING PICTURE VERTICALLY SWITCHES 6,7,8 FOR ADJUSTING PICTURE HORIZONTALLY Unpopulated Switches -------------------- PS1 (Display Crosshatch) - Connected to PIA1 CB1 via pull-up PS2 (Coin input, bypass counter) - Connected to PIA1 PA1 via pull-up and invertor PS3 (Display coin counter) - Connected to PIA1 PA2 via pull-up and invertor Graphic notes ------------- Following roms appear to have graphic data * Mapped in main CPU space * SP1.BIN - Appears to have some sprites in it. * SP2.BIN - Appears to have some 16x16 sprites. (Includes the word SIGMA) * SP3.BIN - Appears to have 2-4 sprites 16x16 - spiders * SP4.BIN - CPU Code 6809 - Main SP5.BIN - Some 8x8 and 16x16 tiles/sprites SP6.BIN - Some 8x8 tiles SP7.BIN - Tiles/Sprites 8x8 SP8.BIN - Tiles/Sprites 8x8 SP9A.BIN - Tiles/Sprites 8x8 SP9B.BIN - Tiles/Sprites 8x8 SP10A.BIN - Tiles/Sprites 8x8 SP10B.BIN - CPU Code 6802 - Sound Spiders has a fully bitmapped display and all sprite drawing is handled by the CPU hence no gfxdecode is done on the sprite ROMS, the CPU accesses them via PIA2. Screen is arranged in three memory areas with three bits being combined from each area to produce a 3bit colour send directly to the screen. $0000-$1bff, $4000-$5bff, $8000-$9bff Bank 0 $2000-$3bff, %6000-$7bff, $a000-$bbff Bank 1 The game normally runs from bank 0 only, but when lots of screen changes are required e.g spider or explosion then it implements a double buffered scheme with bank 1. The ram bank for screens is continuous from $0000-$bfff but is physically arranged as 3 banks of 16k (8x16k DRAM!). The CPU stack/variables etc are stored in the unused spaces between screens. CODE NOTES ---------- 6809 Data page = $1c00 (DP=1c) Known data page contents $05 - Dip switch 1 copy $06 - Dip switch 2 copy (inverted) $07 - Dip switch 3 copy $18 - Bonus Gun Score $1d - Spiders to complete belt after dipsw decode $c496 - Wait for vblank ($c04a bit 7 goes high) $f9cf - Clear screen (Bank0&1) $c8c6 - RAM test of sorts, called from IRQ handler? $de2f - Delay loop. $f9bb - Memory clearance routine $c761 - Partial DipSW decode $F987 - Addresses table at $f98d containing four structs: 3c 0C 04 0D 80 (Inverted screen bank 0) 34 0C 00 0D 00 (Normal screen bank 0) 3C 0C 40 0D 80 (Inverted screen bank 1) 34 0C 44 0D 00 (Inverted screen bank 1) XX Written to PIA2 Reg 3 - B control XX XX Written to CRTC addr/data XX XX Written to CRTC addr/data These tables are used for frame flipping Video access port definition (On PIA 2) Bit 7 6 5 4 3 2 1 0 X Mode Setup/Read 1/0 X X Latch select (see below) X X X X Data nibble When in setup mode data is clocked into the latch by a read from port A When in read mode the read from port A auto increments the address. Latch 0 - Low byte low nibble 1 - Low byte high nibble 2 - High order low nibble 3 - High order high nibble ***************************************************************************/ #include "emu.h" #include "machine/rescap.h" #include "cpu/m6800/m6800.h" #include "cpu/m6809/m6809.h" #include "video/mc6845.h" #include "machine/6821pia.h" #include "machine/74123.h" #include "includes/spiders.h" #include "machine/nvram.h" #define MAIN_CPU_MASTER_CLOCK (11200000) #define PIXEL_CLOCK (MAIN_CPU_MASTER_CLOCK / 2) #define CRTC_CLOCK (MAIN_CPU_MASTER_CLOCK / 16) /************************************* * * Prototypes * *************************************/ static WRITE_LINE_DEVICE_HANDLER( flipscreen_w ); static WRITE8_DEVICE_HANDLER( gfx_rom_intf_w ); static READ8_DEVICE_HANDLER( gfx_rom_r ); /************************************* * * Interrupt generation * *************************************/ static WRITE_LINE_DEVICE_HANDLER( main_cpu_irq ) { pia6821_device *pia1 = device->machine().device("pia1"); pia6821_device *pia2 = device->machine().device("pia2"); pia6821_device *pia3 = device->machine().device("pia3"); int combined_state = pia1->irq_a_state() | pia1->irq_b_state() | pia2->irq_b_state() | pia3->irq_a_state() | pia3->irq_b_state(); cputag_set_input_line(device->machine(), "maincpu", M6809_IRQ_LINE, combined_state ? ASSERT_LINE : CLEAR_LINE); } static WRITE_LINE_DEVICE_HANDLER( main_cpu_firq ) { cputag_set_input_line(device->machine(), "maincpu", M6809_FIRQ_LINE, state ? ASSERT_LINE : CLEAR_LINE); } static WRITE_LINE_DEVICE_HANDLER( audio_cpu_irq ) { cputag_set_input_line(device->machine(), "audiocpu", M6800_IRQ_LINE, state ? ASSERT_LINE : CLEAR_LINE); } /************************************* * * PIA1 - Main CPU * *************************************/ static const pia6821_interface pia_1_intf = { DEVCB_INPUT_PORT("IN0"), /* port A in */ DEVCB_INPUT_PORT("IN1"), /* port B in */ DEVCB_NULL, /* line CA1 in */ DEVCB_NULL, /* line CB1 in */ DEVCB_NULL, /* line CA2 in */ DEVCB_NULL, /* line CB2 in */ DEVCB_NULL, /* port A out */ DEVCB_NULL, /* port B out */ DEVCB_NULL, /* line CA2 out */ DEVCB_NULL, /* port CB2 out */ DEVCB_LINE(main_cpu_irq), /* IRQA */ DEVCB_LINE(main_cpu_irq) /* IRQB */ }; static INTERRUPT_GEN( update_pia_1 ) { pia6821_device *pia1 = device->machine().device("pia1"); /* update the different PIA pins from the input ports */ /* CA1 - copy of PA1 (COIN1) */ pia1->ca1_w(input_port_read(device->machine(), "IN0") & 0x02); /* CA2 - copy of PA0 (SERVICE1) */ pia1->ca2_w(input_port_read(device->machine(), "IN0") & 0x01); /* CB1 - (crosshatch) */ pia1->cb1_w(input_port_read(device->machine(), "XHATCH")); /* CB2 - NOT CONNECTED */ } /************************************* * * PIA2 - Main CPU * *************************************/ static const pia6821_interface pia_2_intf = { DEVCB_HANDLER(gfx_rom_r), /* port A in */ DEVCB_NULL, /* port B in */ DEVCB_NULL, /* line CA1 in */ DEVCB_NULL, /* line CB1 in */ DEVCB_NULL, /* line CA2 in */ DEVCB_NULL, /* line CB2 in */ DEVCB_NULL, /* port A out */ DEVCB_HANDLER(gfx_rom_intf_w), /* port B out */ DEVCB_NULL, /* line CA2 out */ DEVCB_LINE(flipscreen_w), /* port CB2 out */ DEVCB_LINE(main_cpu_firq), /* IRQA */ DEVCB_LINE(main_cpu_irq) /* IRQB */ }; /************************************* * * PIA3 - Main CPU * *************************************/ static const pia6821_interface pia_3_intf = { DEVCB_NULL, /* port A in */ DEVCB_NULL, /* port B in */ DEVCB_NULL, /* line CA1 in */ DEVCB_NULL, /* line CB1 in */ DEVCB_NULL, /* line CA2 in */ DEVCB_NULL, /* line CB2 in */ DEVCB_DEVICE_HANDLER("discrete", spiders_audio_ctrl_w), /* port A out */ DEVCB_DEVICE_HANDLER("pia4", spiders_audio_command_w), /* port B out */ DEVCB_NULL, /* line CA2 out */ DEVCB_NULL, /* port CB2 out */ DEVCB_LINE(main_cpu_irq), /* IRQA */ DEVCB_LINE(main_cpu_irq) /* IRQB */ }; /************************************* * * PIA - Audio CPU * *************************************/ static const pia6821_interface pia_4_intf = { DEVCB_NULL, /* port A in */ DEVCB_NULL, /* port B in */ DEVCB_NULL, /* line CA1 in */ DEVCB_NULL, /* line CB1 in */ DEVCB_NULL, /* line CA2 in */ DEVCB_NULL, /* line CB2 in */ DEVCB_DEVICE_HANDLER("discrete", spiders_audio_a_w), /* port A out */ DEVCB_DEVICE_HANDLER("discrete", spiders_audio_b_w), /* port B out */ DEVCB_NULL, /* line CA2 out */ DEVCB_NULL, /* port CB2 out */ DEVCB_LINE(audio_cpu_irq), /* IRQA */ DEVCB_NULL /* IRQB */ }; /************************************* * * IC60 - 74123 * * This timer is responsible for * delaying the setting of PIA2's * CA1 line. This delay ensures that * CA1 is only changed in the VBLANK * region, but not in HBLANK * *************************************/ static WRITE8_DEVICE_HANDLER( ic60_74123_output_changed) { pia6821_device *pia2 = device->machine().device("pia2"); pia2->ca1_w(data); } static const ttl74123_interface ic60_intf = { TTL74123_GROUNDED, /* the hook up type */ RES_K(22), /* resistor connected to RCext */ CAP_U(0.01), /* capacitor connected to Cext and RCext */ 1, /* A pin - driven by the CRTC */ 1, /* B pin - pulled high */ 1, /* Clear pin - pulled high */ ic60_74123_output_changed }; /************************************* * * Machine start * *************************************/ static MACHINE_START( spiders ) { spiders_state *state = machine.driver_data(); /* setup for save states */ state_save_register_global(machine, state->m_flipscreen); state_save_register_global(machine, state->m_gfx_rom_address); state_save_register_global(machine, state->m_gfx_rom_ctrl_mode); state_save_register_global(machine, state->m_gfx_rom_ctrl_latch); state_save_register_global(machine, state->m_gfx_rom_ctrl_data); } /************************************* * * Video system * *************************************/ static WRITE_LINE_DEVICE_HANDLER( flipscreen_w ) { spiders_state *drvstate = device->machine().driver_data(); drvstate->m_flipscreen = state; } static MC6845_BEGIN_UPDATE( begin_update ) { spiders_state *state = device->machine().driver_data(); /* create the pens */ offs_t i; for (i = 0; i < NUM_PENS; i++) { state->m_pens[i] = MAKE_RGB(pal1bit(i >> 0), pal1bit(i >> 1), pal1bit(i >> 2)); } return state->m_pens; } static MC6845_UPDATE_ROW( update_row ) { spiders_state *state = device->machine().driver_data(); UINT8 cx; pen_t *pens = (pen_t *)param; UINT8 x = 0; for (cx = 0; cx < x_count; cx++) { int i; UINT8 data1, data2, data3; /* the memory is hooked up to the MA, RA lines this way */ offs_t offs = ((ma << 3) & 0x3f00) | ((ra << 5) & 0x00e0) | ((ma << 0) & 0x001f); if (state->m_flipscreen) offs = offs ^ 0x3fff; data1 = state->m_ram[0x0000 | offs]; data2 = state->m_ram[0x4000 | offs]; data3 = state->m_ram[0x8000 | offs]; for (i = 0; i < 8; i++) { UINT8 color; if (state->m_flipscreen) { color = ((data3 & 0x80) >> 5) | ((data2 & 0x80) >> 6) | ((data1 & 0x80) >> 7); data1 = data1 << 1; data2 = data2 << 1; data3 = data3 << 1; } else { color = ((data3 & 0x01) << 2) | ((data2 & 0x01) << 1) | ((data1 & 0x01) << 0); data1 = data1 >> 1; data2 = data2 >> 1; data3 = data3 >> 1; } *BITMAP_ADDR32(bitmap, y, x) = pens[color]; x = x + 1; } ma = ma + 1; } } static WRITE_LINE_DEVICE_HANDLER( display_enable_changed ) { ttl74123_a_w(device->machine().device("ic60"), 0, state); } static const mc6845_interface mc6845_intf = { "screen", /* screen we are acting on */ 8, /* number of pixels per video memory address */ begin_update, /* before pixel update callback */ update_row, /* row update callback */ NULL, /* after pixel update callback */ DEVCB_LINE(display_enable_changed), /* callback for display state changes */ DEVCB_NULL, /* callback for cursor state changes */ DEVCB_NULL, /* HSYNC callback */ DEVCB_NULL, /* VSYNC callback */ NULL /* update address callback */ }; static SCREEN_UPDATE( spiders ) { mc6845_device *mc6845 = screen->machine().device("crtc"); mc6845->update(bitmap, cliprect); return 0; } /************************************* * * Graphics ROM access - see the * comments section for description * *************************************/ static WRITE8_DEVICE_HANDLER( gfx_rom_intf_w ) { spiders_state *state = device->machine().driver_data(); state->m_gfx_rom_ctrl_mode = ( data >> 7) & 0x01; state->m_gfx_rom_ctrl_latch = ( data >> 4) & 0x03; state->m_gfx_rom_ctrl_data = (~data >> 0) & 0x0f; } static READ8_DEVICE_HANDLER( gfx_rom_r ) { spiders_state *state = device->machine().driver_data(); UINT8 ret; if (state->m_gfx_rom_ctrl_mode) { UINT8 *rom = device->machine().region("gfx1")->base(); ret = rom[state->m_gfx_rom_address]; state->m_gfx_rom_address = state->m_gfx_rom_address + 1; } else { UINT8 shift_count = state->m_gfx_rom_ctrl_latch << 2; state->m_gfx_rom_address = (state->m_gfx_rom_address & ~(0x0f << shift_count)) | (state->m_gfx_rom_ctrl_data << shift_count); ret = 0; } return ret; } /************************************* * * Memory handlers * *************************************/ static ADDRESS_MAP_START( spiders_main_map, AS_PROGRAM, 8 ) AM_RANGE(0x0000, 0xbfff) AM_RAM AM_BASE_MEMBER(spiders_state, m_ram) AM_RANGE(0xc000, 0xc000) AM_DEVWRITE_MODERN("crtc", mc6845_device, address_w) AM_RANGE(0xc001, 0xc001) AM_DEVREADWRITE_MODERN("crtc", mc6845_device, register_r, register_w) AM_RANGE(0xc020, 0xc027) AM_RAM AM_SHARE("nvram") AM_RANGE(0xc044, 0xc047) AM_DEVREADWRITE_MODERN("pia1", pia6821_device, read, write) AM_RANGE(0xc048, 0xc04b) AM_DEVREADWRITE_MODERN("pia2", pia6821_device, read_alt, write_alt) AM_RANGE(0xc050, 0xc053) AM_DEVREADWRITE_MODERN("pia3", pia6821_device, read, write) AM_RANGE(0xc060, 0xc060) AM_READ_PORT("DSW1") AM_RANGE(0xc080, 0xc080) AM_READ_PORT("DSW2") AM_RANGE(0xc0a0, 0xc0a0) AM_READ_PORT("DSW3") AM_RANGE(0xc100, 0xffff) AM_ROM ADDRESS_MAP_END static ADDRESS_MAP_START( spiders_audio_map, AS_PROGRAM, 8 ) AM_RANGE(0x0000, 0x007f) AM_RAM AM_RANGE(0x0080, 0x0083) AM_DEVREADWRITE_MODERN("pia4", pia6821_device, read, write) AM_RANGE(0xf800, 0xffff) AM_ROM ADDRESS_MAP_END /************************************* * * Port definition * *************************************/ static INPUT_PORTS_START( spiders ) /* PIA1 PA0 - PA7 */ PORT_START("IN0") /* IN0 */ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_SERVICE1 ) PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_COIN1 ) PORT_SERVICE_NO_TOGGLE( 0x04, IP_ACTIVE_HIGH ) PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(1) PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(2) PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_START1 ) PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_START2 ) PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_SERVICE2 ) /* PIA1 PB0 - PB7 */ PORT_START("IN1") /* IN1 */ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_PLAYER(2) PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_PLAYER(2) PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_PLAYER(1) PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_PLAYER(1) PORT_BIT( 0xf0, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_START("DSW1") /* IN2, DSW1 */ PORT_DIPNAME( 0x07, 0x07, DEF_STR( Coinage ) ) PORT_DIPLOCATION("SW1:1,2,3") PORT_DIPSETTING( 0x01, DEF_STR( 2C_1C ) ) PORT_DIPSETTING( 0x07, DEF_STR( 1C_1C ) ) PORT_DIPSETTING( 0x06, DEF_STR( 4C_5C ) ) PORT_DIPSETTING( 0x04, DEF_STR( 1C_2C ) ) PORT_DIPSETTING( 0x02, DEF_STR( 1C_3C ) ) PORT_DIPSETTING( 0x00, DEF_STR( Free_Play ) ) PORT_BIT( 0xf8, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_START("DSW2") /* IN3, DSW2 */ PORT_DIPNAME( 0x03, 0x03, "Play Mode" ) PORT_DIPLOCATION("SW2:1,2") PORT_DIPSETTING( 0x00, "A A'" ) PORT_DIPSETTING( 0x01, "A B'" ) PORT_DIPSETTING( 0x02, "B A'" ) PORT_DIPSETTING( 0x03, "B B'" ) PORT_DIPNAME( 0x0c, 0x0c, "Spiders to Complete Belt" ) PORT_DIPLOCATION("SW2:3,4") PORT_DIPSETTING( 0x00, "14" ) PORT_DIPSETTING( 0x0c, "16" ) PORT_DIPSETTING( 0x04, "20" ) PORT_DIPSETTING( 0x08, "26" ) PORT_DIPNAME( 0x10, 0x10, DEF_STR( Lives ) ) PORT_DIPLOCATION("SW2:5") PORT_DIPSETTING( 0x10, "3" ) PORT_DIPSETTING( 0x00, "4" ) PORT_DIPNAME( 0x60, 0x60, DEF_STR( Bonus_Life ) ) PORT_DIPLOCATION("SW2:6,7") PORT_DIPSETTING( 0x00, DEF_STR( None ) ) PORT_DIPSETTING( 0x60, "15K" ) PORT_DIPSETTING( 0x20, "20K" ) PORT_DIPSETTING( 0x40, "25K" ) PORT_DIPNAME( 0x80, 0x00, "Giant Spiders" ) PORT_DIPLOCATION("SW2:8") PORT_DIPSETTING( 0x00, "First Screen" ) PORT_DIPSETTING( 0x80, "Every Screen" ) PORT_START("DSW3") /* IN4, DSW3 */ PORT_DIPNAME( 0x01, 0x00, DEF_STR( Flip_Screen ) ) PORT_DIPLOCATION("SW3:1") PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x01, DEF_STR( On ) ) PORT_DIPNAME( 0x02, 0x00, DEF_STR( Cabinet ) ) PORT_DIPLOCATION("SW3:2") PORT_DIPSETTING( 0x00, DEF_STR( Upright ) ) PORT_DIPSETTING( 0x02, DEF_STR( Cocktail ) ) PORT_DIPNAME( 0x1c, 0x00, "Vertical Adjust" ) PORT_DIPLOCATION("SW3:3,4,5") PORT_DIPSETTING( 0x00, "0" ) PORT_DIPSETTING( 0x04, "1" ) PORT_DIPSETTING( 0x08, "2" ) PORT_DIPSETTING( 0x0c, "3" ) PORT_DIPSETTING( 0x10, "4" ) PORT_DIPSETTING( 0x14, "5" ) PORT_DIPSETTING( 0x18, "6" ) PORT_DIPSETTING( 0x1c, "7" ) PORT_DIPNAME( 0xe0, 0x00, "Horizontal Adjust" ) PORT_DIPLOCATION("SW3:6,7,8") PORT_DIPSETTING( 0x00, "0" ) PORT_DIPSETTING( 0x20, "1" ) PORT_DIPSETTING( 0x40, "2" ) PORT_DIPSETTING( 0x60, "3" ) PORT_DIPSETTING( 0x80, "4" ) PORT_DIPSETTING( 0xa0, "5" ) PORT_DIPSETTING( 0xc0, "6" ) PORT_DIPSETTING( 0xe0, "7" ) PORT_START("XHATCH") /* connected to PIA1 CB1 input */ PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME("PS1 (Crosshatch)") PORT_CODE(KEYCODE_F1) INPUT_PORTS_END /************************************* * * Machine driver * *************************************/ static MACHINE_CONFIG_START( spiders, spiders_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu", M6809, 2800000) MCFG_CPU_PROGRAM_MAP(spiders_main_map) MCFG_CPU_PERIODIC_INT(update_pia_1, 25) MCFG_CPU_ADD("audiocpu", M6802, 3000000) MCFG_CPU_PROGRAM_MAP(spiders_audio_map) MCFG_MACHINE_START(spiders) MCFG_NVRAM_ADD_0FILL("nvram") /* video hardware */ MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_FORMAT(BITMAP_FORMAT_RGB32) MCFG_SCREEN_RAW_PARAMS(PIXEL_CLOCK, 256, 0, 256, 256, 0, 256) /* temporary, CRTC will configure screen */ MCFG_SCREEN_UPDATE(spiders) MCFG_MC6845_ADD("crtc", MC6845, CRTC_CLOCK, mc6845_intf) /* 74LS123 */ MCFG_PIA6821_ADD("pia1", pia_1_intf) MCFG_PIA6821_ADD("pia2", pia_2_intf) MCFG_PIA6821_ADD("pia3", pia_3_intf) MCFG_PIA6821_ADD("pia4", pia_4_intf) MCFG_TTL74123_ADD("ic60", ic60_intf) /* audio hardware */ MCFG_FRAGMENT_ADD(spiders_audio) MACHINE_CONFIG_END /************************************* * * ROM definitions * *************************************/ ROM_START( spiders ) ROM_REGION( 0x10000, "maincpu", 0 ) ROM_LOAD( "sp-ic74", 0xc000, 0x1000, CRC(6a2578f6) SHA1(ddfe4fb2ccc925df7ae97821f8681b32e47630b4) ) ROM_LOAD( "sp-ic73", 0xd000, 0x1000, CRC(d69b2f21) SHA1(ea2b07d19bd50c3b57da8fd8e13b8ab0e8ca3084) ) ROM_LOAD( "sp-ic72", 0xe000, 0x1000, CRC(464125da) SHA1(94e9edd52e8bd72bbb5dc91b0aa11955e940799c) ) ROM_LOAD( "sp-ic71", 0xf000, 0x1000, CRC(a9539b18) SHA1(2d02343a78a4a65e5a1798552cd015f16ad5423a) ) ROM_REGION( 0x10000, "audiocpu", 0 ) ROM_LOAD( "sp-ic3", 0xf800, 0x0800, CRC(944d761e) SHA1(23b1f9234e0de678e96d1a6876d8d0a341150385) ) ROM_REGION( 0x10000, "gfx1", 0 ) ROM_LOAD( "sp-ic33", 0x0000, 0x1000, CRC(b6731baa) SHA1(b551030df417b40f4a8488fc82a8b5809d3d32f6) ) ROM_LOAD( "sp-ic25", 0x1000, 0x1000, CRC(baec64e7) SHA1(beb45e2e6270607c14cdf964c08fe320ce8236a0) ) ROM_LOAD( "sp-ic24", 0x2000, 0x1000, CRC(a40a5517) SHA1(3f524c7dbbfe8aad7860d15c38d2702732895681) ) ROM_LOAD( "sp-ic23", 0x3000, 0x1000, CRC(3ca08053) SHA1(20c5709d9650c426b91aed5318a9ab0a10009f17) ) ROM_LOAD( "sp-ic22", 0x4000, 0x1000, CRC(07ea073c) SHA1(2e57831092730db5fbdb97c2d78d8842868906f4) ) ROM_LOAD( "sp-ic21", 0x5000, 0x1000, CRC(41b344b4) SHA1(c0eac1e332da1eada062059ae742b666051da76c) ) ROM_LOAD( "sp-ic20", 0x6000, 0x1000, CRC(4d37da5a) SHA1(37567d19596506385e9dcc7a7c0cf65120189ae0) ) ROM_END ROM_START( spiders2 ) ROM_REGION( 0x10000, "maincpu", 0 ) ROM_LOAD( "sp-ic74", 0xc000, 0x1000, CRC(6a2578f6) SHA1(ddfe4fb2ccc925df7ae97821f8681b32e47630b4) ) ROM_LOAD( "sp2.bin", 0xd000, 0x1000, CRC(cf71d12b) SHA1(369e91f637e8cd898354ddee04e24d4894968f79) ) ROM_LOAD( "sp-ic72", 0xe000, 0x1000, CRC(464125da) SHA1(94e9edd52e8bd72bbb5dc91b0aa11955e940799c) ) ROM_LOAD( "sp4.bin", 0xf000, 0x1000, CRC(f3d126bb) SHA1(ecc9156a7da661fa7543d7656aa7da77274e0842) ) ROM_REGION( 0x10000, "audiocpu", 0 ) ROM_LOAD( "sp-ic3", 0xf800, 0x0800, CRC(944d761e) SHA1(23b1f9234e0de678e96d1a6876d8d0a341150385) ) ROM_REGION( 0x10000, "gfx1", 0 ) ROM_LOAD( "sp-ic33", 0x0000, 0x1000, CRC(b6731baa) SHA1(b551030df417b40f4a8488fc82a8b5809d3d32f6) ) ROM_LOAD( "sp-ic25", 0x1000, 0x1000, CRC(baec64e7) SHA1(beb45e2e6270607c14cdf964c08fe320ce8236a0) ) ROM_LOAD( "sp-ic24", 0x2000, 0x1000, CRC(a40a5517) SHA1(3f524c7dbbfe8aad7860d15c38d2702732895681) ) ROM_LOAD( "sp-ic23", 0x3000, 0x1000, CRC(3ca08053) SHA1(20c5709d9650c426b91aed5318a9ab0a10009f17) ) ROM_LOAD( "sp-ic22", 0x4000, 0x1000, CRC(07ea073c) SHA1(2e57831092730db5fbdb97c2d78d8842868906f4) ) ROM_LOAD( "sp-ic21", 0x5000, 0x1000, CRC(41b344b4) SHA1(c0eac1e332da1eada062059ae742b666051da76c) ) ROM_LOAD( "sp-ic20", 0x6000, 0x1000, CRC(4d37da5a) SHA1(37567d19596506385e9dcc7a7c0cf65120189ae0) ) ROM_END ROM_START( spinner ) ROM_REGION( 0x10000, "maincpu", 0 ) ROM_LOAD( "sp01-100.r1", 0xc000, 0x1000, CRC(e85faa36) SHA1(ef1c479d503ef6a833ae1f9d5a260f9e50c1f2d4) ) ROM_LOAD( "sp02-99.s1", 0xd000, 0x1000, CRC(4bcd2b35) SHA1(dff3c6e68cc5384863a123661422d929e7406dee) ) ROM_LOAD( "sp03-98.t1", 0xe000, 0x1000, CRC(fdabc5df) SHA1(a3276eb1f09f6a3c406721f89993a39c92fb7728) ) ROM_LOAD( "sp04-97.v1", 0xf000, 0x1000, CRC(62798f96) SHA1(1407a2ccb2b8f998f2ee494f52a471b627895dbe) ) ROM_REGION( 0x10000, "audiocpu", 0 ) ROM_LOAD( "sp41-28.d9", 0xf800, 0x0800, CRC(944d761e) SHA1(23b1f9234e0de678e96d1a6876d8d0a341150385) ) ROM_REGION( 0x10000, "gfx1", 0 ) ROM_LOAD( "sp05-25.k8", 0x0000, 0x1000, CRC(ccc696ee) SHA1(1d41e9eb0cae73b221327d7b6e02450275d056c6) ) ROM_LOAD( "sp06-17.k9", 0x1000, 0x1000, CRC(d3d06722) SHA1(da510ed162e5c310945123c9ce6d5648c7b0ae48) ) ROM_LOAD( "sp07-16.l9", 0x2000, 0x1000, CRC(a40a5517) SHA1(3f524c7dbbfe8aad7860d15c38d2702732895681) ) ROM_LOAD( "sp08-15.n9", 0x3000, 0x1000, CRC(3ca08053) SHA1(20c5709d9650c426b91aed5318a9ab0a10009f17) ) ROM_LOAD( "sp09-14.o9", 0x4000, 0x1000, CRC(07ea073c) SHA1(2e57831092730db5fbdb97c2d78d8842868906f4) ) ROM_LOAD( "sp10-13.q9", 0x5000, 0x1000, CRC(41b344b4) SHA1(c0eac1e332da1eada062059ae742b666051da76c) ) ROM_LOAD( "sp11-12.r9", 0x6000, 0x1000, CRC(4d37da5a) SHA1(37567d19596506385e9dcc7a7c0cf65120189ae0) ) ROM_END ROM_START( spiders3 ) ROM_REGION( 0x10000, "maincpu", 0 ) ROM_LOAD( "sp-ic74.bin", 0xc000, 0x1000, CRC(ed6b5dcd) SHA1(551fecb9adbab5cb5ac07fb27cc1fcfa03b5e832) ) ROM_LOAD( "sp-ic73.bin", 0xd000, 0x1000, CRC(bc04f779) SHA1(a6366461a120d978b27470dad34a2270aee71428) ) ROM_LOAD( "sp-ic72.bin", 0xe000, 0x1000, CRC(c7dd097d) SHA1(c7802ac33c1a67ffcb1891e74f0e43483f5b1016) ) ROM_LOAD( "sp-ic71.bin", 0xf000, 0x1000, CRC(593b43c4) SHA1(f0cf06a22be205f00a9d52f766c3aae1985f0090) ) ROM_REGION( 0x10000, "audiocpu", 0 ) ROM_LOAD( "sp-ic3.bin", 0xf800, 0x0800, CRC(153adee7) SHA1(45dbd756adb5d75562b066fc152c0af7925052de) ) ROM_REGION( 0x10000, "gfx1", 0 ) ROM_LOAD( "sp-ic33.bin", 0x0000, 0x1000, CRC(7209dacd) SHA1(142de81c013f4074a8eaedc5cd7e9498e6910eb9) ) ROM_LOAD( "sp-ic25.bin", 0x1000, 0x1000, CRC(d3d06722) SHA1(da510ed162e5c310945123c9ce6d5648c7b0ae48) ) ROM_LOAD( "sp-ic24", 0x2000, 0x1000, CRC(a40a5517) SHA1(3f524c7dbbfe8aad7860d15c38d2702732895681) ) ROM_LOAD( "sp-ic23", 0x3000, 0x1000, CRC(3ca08053) SHA1(20c5709d9650c426b91aed5318a9ab0a10009f17) ) ROM_LOAD( "sp-ic22", 0x4000, 0x1000, CRC(07ea073c) SHA1(2e57831092730db5fbdb97c2d78d8842868906f4) ) ROM_LOAD( "sp-ic21", 0x5000, 0x1000, CRC(41b344b4) SHA1(c0eac1e332da1eada062059ae742b666051da76c) ) ROM_LOAD( "sp-ic20", 0x6000, 0x1000, CRC(4d37da5a) SHA1(37567d19596506385e9dcc7a7c0cf65120189ae0) ) ROM_END /************************************* * * Game drivers * *************************************/ /* this is a newer version with just one bug fix */ GAME( 1981, spiders, 0, spiders, spiders, 0, ROT270, "Sigma Enterprises Inc.", "Spiders (set 1)", GAME_IMPERFECT_SOUND | GAME_SUPPORTS_SAVE) GAME( 1981, spiders2, spiders, spiders, spiders, 0, ROT270, "Sigma Enterprises Inc.", "Spiders (set 2)", GAME_IMPERFECT_SOUND | GAME_SUPPORTS_SAVE) GAME( 1981, spiders3, spiders, spiders, spiders, 0, ROT270, "Sigma Enterprises Inc.", "Spiders (set 3)", GAME_IMPERFECT_SOUND | GAME_SUPPORTS_SAVE) GAME( 1981, spinner, spiders, spiders, spiders, 0, ROT270, "bootleg", "Spinner", GAME_IMPERFECT_SOUND | GAME_SUPPORTS_SAVE)