// license:LGPL-2.1+ // copyright-holders:Angelo Salese, David Haywood /********************************************************************************************************* Double Dealer (c)NMK 1991 driver by Angelo Salese & David Haywood, based on early work by Tomasz Slanina Appears to be a down-grade of the nmk16 HW TODO: - Fix MCU simulation for credit subtractions & add coinage settings (currently set to free play for convenience); - Understand better the video emulation and convert it to tilemaps; - 2 players mode gameplay is way too slow (protection related?) - Decap + emulate MCU, required if the random number generation is going to be accurate; ========================================================================================================== -- pcb marked GD91071 68000P10 YM2203C 91071-3 (Mask ROM) NMK-110 8131 ( Mitsubishi M50747 MCU ?) NMK 901 NMK 902 NMK 903 x2 82S135N ("5") 82S129N ("6") xtals 16.000 MHz and 6.000 MHz DSW x2 -- Few words about protection: - Work RAM at $fe000 - $fffff is shared with MCU . Maybe whole $f0000-$fffff is shared ... - After boot, game writes random-looking data to work RAM: 00052C: 33FC 1234 000F E086 move.w #$1234, $fe086.l 000534: 33FC 5678 000F E164 move.w #$5678, $fe164.l 00053C: 33FC 9CA3 000F E62E move.w #$9ca3, $fe62e.l 000544: 33FC ABA2 000F E734 move.w #$aba2, $fe734.l 00054C: 33FC B891 000F E828 move.w #$b891, $fe828.l 000554: 33FC C760 000F E950 move.w #$c760, $fe950.l 00055C: 33FC D45F 000F EA7C move.w #$d45f, $fea7c.l 000564: 33FC E32E 000F ED4A move.w #$e32e, $fed4a.l Some (or maybe all ?) of above enables random generator at $fe010 - $fe017 - There's also MCU response (write/read/test) test just after these writes. (probably data used in the check depends on above writes). It's similar to jalmah.cpp tests, but num of responses is different, and shared ram is used to communicate with MCU - After last check (or maybe during tests ... no idea) MCU writes $4ef900000604 (jmp $604) to $fe000 and game jumps to this address. - code at $604 writes $20.w to $fe018 and $1.w to $fe01e. As result shared ram $fe000 - $fe007 is cleared. Also many, many other reads/writes from/to shared mem. Few checks every interrupt: interrupt, lvl1 000796: 007C 0700 ori #$700, SR 00079A: 48E7 FFFE movem.l D0-D7/A0-A6, -(A7) 00079E: 33FC 0001 000F E006 move.w #$1, $fe006.l ; shared ram W (watchdog ?) 0007A6: 4A79 000F E000 tst.w $fe000.l ; shared ram R 0007AC: 6600 0012 bne $7c0 0007B0: 4A79 000F 02FE tst.w $f02fe.l 0007B6: 6600 0008 bne $7c0 0007BA: 4279 000F C880 clr.w $fc880.l +-0007C0: 6100 0236 bsr $9f8 | 0007C4: 4EB9 0003 0056 jsr $30056.l | 0007CA: 33FC 00FF 000F C880 move.w #$ff, $fc880.l | 0007D2: 007C 2000 ori #$2000, SR | 0007D6: 4CDF 7FFF movem.l (A7)+, D0-D7/A0-A6 | 0007DA: 4E73 rte | | +->0009F8: 4A79 000F 02C0 tst.w $f02c0.l 0009FE: 6700 0072 beq $a72 000A02: 4A79 000F 02F6 tst.w $f02f6.l 000A08: 6600 0068 bne $a72 000A0C: 3439 000F E002 move.w $fe002.l, D2 ; shared ram R 000A12: 3602 move.w D2, D3 000A14: 0242 00FF andi.w #$ff, D2 000A18: 0243 FF00 andi.w #$ff00, D3 000A1C: E04B lsr.w #8, D3 000A1E: 3039 000F E000 move.w $fe000.l, D0 ; shared ram R 000A24: 3239 000F 0010 move.w $f0010.l, D1 000A2A: B041 cmp.w D1, D0 000A2C: 6200 002A bhi $a58 000A30: 6600 002E bne $a60 000A34: 3039 000F 0012 move.w $f0012.l, D0 000A3A: B440 cmp.w D0, D2 000A3C: 6200 001A bhi $a58 000A40: 6600 001E bne $a60 000A44: 3039 000F 0014 move.w $f0014.l, D0 000A4A: B640 cmp.w D0, D3 000A4C: 6200 000A bhi $a58 000A50: 6600 000E bne $a60 000A54: 6000 001C bra $a72 000A58: 33FC 0007 000F C880 move.w #$7, $fc880.l ; used later in the code... 000A60: 33C0 000F 0010 move.w D0, $f0010.l ;update mem, used in next test 000A66: 33C2 000F 0012 move.w D2, $f0012.l 000A6C: 33C3 000F 0014 move.w D3, $f0014.l 000A72: 4E75 rts *********************************************************************************************************/ #include "emu.h" #include "cpu/m68000/m68000.h" #include "machine/timer.h" #include "sound/2203intf.h" #include "emupal.h" #include "screen.h" #include "speaker.h" class ddealer_state : public driver_device { public: ddealer_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_vregs(*this, "vregs"), m_left_fg_vram_top(*this, "left_fg_vratop"), m_right_fg_vram_top(*this, "right_fg_vratop"), m_left_fg_vram_bottom(*this, "left_fg_vrabot"), m_right_fg_vram_bottom(*this, "right_fg_vrabot"), m_back_vram(*this, "back_vram"), m_work_ram(*this, "work_ram"), m_mcu_shared_ram(*this, "mcu_shared_ram"), m_maincpu(*this, "maincpu"), m_gfxdecode(*this, "gfxdecode"), m_palette(*this, "palette") { } void ddealer(machine_config &config); void init_ddealer(); private: DECLARE_WRITE16_MEMBER(flipscreen_w); DECLARE_WRITE16_MEMBER(back_vram_w); DECLARE_WRITE16_MEMBER(mcu_shared_w); DECLARE_READ16_MEMBER(mcu_r); TILE_GET_INFO_MEMBER(get_back_tile_info); void draw_video_layer(uint16_t* vreg_base, uint16_t* top, uint16_t* bottom, bitmap_ind16 &bitmap, const rectangle &cliprect, int flipy); uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); TIMER_DEVICE_CALLBACK_MEMBER(mcu_sim); void ddealer_map(address_map &map); virtual void machine_start() override; virtual void machine_reset() override; virtual void video_start() override; // memory pointers required_shared_ptr m_vregs; required_shared_ptr m_left_fg_vram_top; required_shared_ptr m_right_fg_vram_top; required_shared_ptr m_left_fg_vram_bottom; required_shared_ptr m_right_fg_vram_bottom; required_shared_ptr m_back_vram; required_shared_ptr m_work_ram; required_shared_ptr m_mcu_shared_ram; // devices required_device m_maincpu; required_device m_gfxdecode; required_device m_palette; // video-related tilemap_t *m_back_tilemap; // MCU sim related int m_respcount; uint8_t m_input_pressed; uint16_t m_coin_input; }; WRITE16_MEMBER(ddealer_state::flipscreen_w) { flip_screen_set(data & 0x01); } TILE_GET_INFO_MEMBER(ddealer_state::get_back_tile_info) { int code = m_back_vram[tile_index]; SET_TILE_INFO_MEMBER(0, code & 0xfff, code >> 12, 0); } void ddealer_state::video_start() { m_back_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(ddealer_state::get_back_tile_info),this), TILEMAP_SCAN_COLS, 8, 8, 64, 32); } void ddealer_state::draw_video_layer(uint16_t* vreg_base, uint16_t* top, uint16_t* bottom, bitmap_ind16 &bitmap, const rectangle &cliprect, int flipy) { gfx_element *gfx = m_gfxdecode->gfx(1); int16_t sx, sy; int x,y, count; uint16_t* src; sx = ((vreg_base[0x4 / 2] & 0xff)); sx |= ((vreg_base[0x2 / 2] & 0xff) << 8); sx &= 0x7ff; if (sx & 0x400) sx -= 0x800; sy = ((vreg_base[0x8 / 2] & 0xff)); sy |= ((vreg_base[0x6 / 2] & 0xff) << 8); if (!flipy) { sx -= 64; // video shift /* the tilemaps seems to be split into top / bottom pieces */ count = 0; src = top; for (x = 0; x < 128; x++) { for (y = 0; y < 16; y++) { uint16_t tile = (src[count] & 0x0fff); uint16_t colr = (src[count] & 0xf000) >> 12; count++; gfx->transpen(bitmap,cliprect, tile, colr, 0, flipy, (x * 16) - sx, (y * 16) - sy, 15); } } count = 0; src = bottom; sy -= 256; for (x = 0; x < 128; x++) { for (y = 0; y < 16; y++) { uint16_t tile = (src[count] & 0x0fff); uint16_t colr = (src[count] & 0xf000) >> 12; count++; gfx->transpen(bitmap,cliprect, tile, colr, 0, flipy, (x * 16) - sx, (y * 16) - sy, 15); } } } else { sx -= 0x6d0; sy -= 16; /* the tilemaps seems to be split into top / bottom pieces */ count = 0; src = top; for (x = 128; x > 0; x--) { for (y = 16; y > 0; y--) { uint16_t tile = (src[count] & 0x0fff); uint16_t colr = (src[count] & 0xf000) >> 12; count++; gfx->transpen(bitmap,cliprect, tile, colr, flipy, flipy, (x * 16) + sx, (y * 16) + sy, 15); } } count = 0; src = bottom; sy -= 256; for (x = 128; x > 0; x--) { for (y = 16; y > 0; y--) { uint16_t tile = (src[count] & 0x0fff); uint16_t colr = (src[count] & 0xf000) >> 12; count++; gfx->transpen(bitmap,cliprect, tile, colr, flipy, flipy, (x * 16) + sx, (y * 16) + sy, 15); } } } } uint32_t ddealer_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { m_back_tilemap->set_scrollx(0, -64); m_back_tilemap->draw(screen, bitmap, cliprect, 0, 0); /* the fg tilemap handling is a little hacky right now, I'm not sure if it should be a single tilemap with rowscroll / linescroll, or two tilemaps which can be combined, the flipscreen case makes things more difficult to understand */ bool const flip = flip_screen(); if (!flip) { if (m_vregs[0xcc / 2] & 0x80) { draw_video_layer(&m_vregs[0x1e0 / 2], m_left_fg_vram_top, m_left_fg_vram_bottom, bitmap, cliprect, flip); draw_video_layer(&m_vregs[0xcc / 2], m_right_fg_vram_top, m_right_fg_vram_bottom, bitmap, cliprect, flip); } else { draw_video_layer(&m_vregs[0x1e0 / 2], m_left_fg_vram_top, m_left_fg_vram_bottom, bitmap, cliprect, flip); } } else { if (m_vregs[0xcc / 2] & 0x80) { draw_video_layer(&m_vregs[0xcc / 2], m_left_fg_vram_top, m_left_fg_vram_bottom, bitmap, cliprect, flip); draw_video_layer(&m_vregs[0x1e0 / 2], m_right_fg_vram_top, m_right_fg_vram_bottom, bitmap, cliprect, flip); } else { draw_video_layer(&m_vregs[0x1e0 / 2], m_left_fg_vram_top, m_left_fg_vram_bottom, bitmap, cliprect, flip); } } return 0; } // TODO: identify how game signals game overs to the MCU // maybe it reads areas 0x3000 (for p1) and 0x5000 (for p2)? // [+0x2c] bit 12 is active when continue screen occur. TIMER_DEVICE_CALLBACK_MEMBER(ddealer_state::mcu_sim) { /*coin/credit simulation*/ /*$fe002 is used,might be for multiple coins for one credit settings.*/ // TODO: I'm not bothering with coin/credit settings until this actually work properly // (game is currently hardwired to free play) m_coin_input = (~(ioport("IN0")->read())); if (m_coin_input & 0x01)//coin 1 { if((m_input_pressed & 0x01) == 0) m_mcu_shared_ram[0x000 / 2]++; m_input_pressed = (m_input_pressed & 0xfe) | 1; } else m_input_pressed = (m_input_pressed & 0xfe); if (m_coin_input & 0x02)//coin 2 { if ((m_input_pressed & 0x02) == 0) m_mcu_shared_ram[0x000 / 2]++; m_input_pressed = (m_input_pressed & 0xfd) | 2; } else m_input_pressed = (m_input_pressed & 0xfd); if (m_coin_input & 0x04)//service 1 { if ((m_input_pressed & 0x04) == 0) m_mcu_shared_ram[0x000 / 2]++; m_input_pressed = (m_input_pressed & 0xfb) | 4; } else m_input_pressed = (m_input_pressed & 0xfb); /*0x104/2 is some sort of "start-lock",i.e. used on the girl selection. Without it, the game "steals" one credit if you press the start button on that.*/ if (m_mcu_shared_ram[0x000 / 2] > 0 && m_work_ram[0x104 / 2] & 1) { if (m_coin_input & 0x08)//start 1 { if ((m_input_pressed & 0x08) == 0 && (~(m_work_ram[0x100 / 2] & 1))) m_mcu_shared_ram[0x000 / 2]--; m_input_pressed = (m_input_pressed & 0xf7) | 8; } else m_input_pressed = (m_input_pressed & 0xf7); if (m_coin_input & 0x10)//start 2 { if((m_input_pressed & 0x10) == 0 && (~(m_work_ram[0x100 / 2] & 2))) m_mcu_shared_ram[0x000 / 2]--; m_input_pressed = (m_input_pressed & 0xef) | 0x10; } else m_input_pressed = (m_input_pressed & 0xef); } /*random number generators, controls order of cards*/ m_mcu_shared_ram[0x10 / 2] = machine().rand() & 0xffff; m_mcu_shared_ram[0x12 / 2] = machine().rand() & 0xffff; m_mcu_shared_ram[0x14 / 2] = machine().rand() & 0xffff; m_mcu_shared_ram[0x16 / 2] = machine().rand() & 0xffff; } WRITE16_MEMBER(ddealer_state::back_vram_w) { COMBINE_DATA(&m_back_vram[offset]); m_back_tilemap->mark_tile_dirty(offset); } /****************************************************************************************************** Protection handling, identical to Hacha Mecha Fighter / Thunder Dragon with different vectors. ******************************************************************************************************/ #define PROT_JSR(_offs_,_protvalue_,_pc_) \ if(m_mcu_shared_ram[(_offs_)/2] == _protvalue_) \ { \ m_mcu_shared_ram[(_offs_)/2] = 0xffff; /*(MCU job done)*/ \ m_mcu_shared_ram[(_offs_+2-0x10)/2] = 0x4ef9;/*JMP*/\ m_mcu_shared_ram[(_offs_+4-0x10)/2] = 0x0000;/*HI-DWORD*/\ m_mcu_shared_ram[(_offs_+6-0x10)/2] = _pc_; /*LO-DWORD*/\ } #define PROT_INPUT(_offs_,_protvalue_,_protinput_,_input_) \ if(m_mcu_shared_ram[_offs_] == _protvalue_) \ {\ m_mcu_shared_ram[_protinput_] = ((_input_ & 0xffff0000)>>16);\ m_mcu_shared_ram[_protinput_+1] = (_input_ & 0x0000ffff);\ } WRITE16_MEMBER(ddealer_state::mcu_shared_w) { COMBINE_DATA(&m_mcu_shared_ram[offset]); switch(offset) { case 0x086/2: PROT_INPUT(0x086/2,0x1234,0x100/2,0x80000); break; case 0x164/2: PROT_INPUT(0x164/2,0x5678,0x104/2,0x80002); break; case 0x62e/2: PROT_INPUT(0x62e/2,0x9ca3,0x108/2,0x80008); break; case 0x734/2: PROT_INPUT(0x734/2,0xaba2,0x10c/2,0x8000a); break; /*These enables something for sure, maybe the random number generator?*/ //00054C: 33FC B891 000F E828 move.w #$b891, $fe828.l //000554: 33FC C760 000F E950 move.w #$c760, $fe950.l //00055C: 33FC D45F 000F EA7C move.w #$d45f, $fea7c.l //000564: 33FC E32E 000F ED4A move.w #$e32e, $fed4a.l case 0x40e/2: PROT_JSR(0x40e,0x8011,0x6992); break;//score case 0x41e/2: break;//unused case 0x42e/2: PROT_JSR(0x42e,0x8007,0x6004); break;//cards on playfield/hand (ram side) case 0x43e/2: PROT_JSR(0x43e,0x801d,0x6176); break;//second player sub-routine case 0x44e/2: PROT_JSR(0x44e,0x8028,0x6f68); break;//"gun card" logic case 0x45e/2: PROT_JSR(0x45e,0x803e,0x6f90); break;//card delete case 0x46e/2: PROT_JSR(0x46e,0x8033,0x93c2); break;//card movements case 0x47e/2: PROT_JSR(0x47e,0x8026,0x67a0); break;//cards on playfield (vram side) case 0x48e/2: PROT_JSR(0x48e,0x8012,0x6824); break;//cards on hand (vram side) case 0x49e/2: PROT_JSR(0x49e,0x8004,0x9696); break;//write to text layer case 0x4ae/2: PROT_JSR(0x4ae,0x8035,0x95fe); break;//write to scroll layer case 0x4be/2: PROT_JSR(0x4be,0x8009,0x9634); break;//show girls sub-routine case 0x4ce/2: PROT_JSR(0x4ce,0x802a,0x9656); break; case 0x4de/2: PROT_JSR(0x4de,0x803b,0x96c2); break; case 0x4ee/2: PROT_JSR(0x4ee,0x800c,0x5ca4); break;//palette ram buffer case 0x4fe/2: PROT_JSR(0x4fe,0x8018,0x9818); break; /*Start-up vector, I think that only the first ram address can be written by the main CPU, or it is a whole sequence.*/ case 0x000/2: if (m_mcu_shared_ram[0x000 / 2] == 0x60fe) { m_mcu_shared_ram[0x000 / 2] = 0x0000;//coin counter m_mcu_shared_ram[0x002 / 2] = 0x0000;//coin counter "decimal point" m_mcu_shared_ram[0x004 / 2] = 0x4ef9; } break; case 0x002/2: case 0x004/2: if (m_mcu_shared_ram[0x002 / 2] == 0x0000 && m_mcu_shared_ram[0x004 / 2] == 0x0214) m_mcu_shared_ram[0x004 / 2] = 0x4ef9; break; case 0x008/2: if (m_mcu_shared_ram[0x008 / 2] == 0x000f) m_mcu_shared_ram[0x008 / 2] = 0x0604; break; case 0x00c/2: if (m_mcu_shared_ram[0x00c / 2] == 0x000f) m_mcu_shared_ram[0x00c / 2] = 0x0000; break; } } void ddealer_state::ddealer_map(address_map &map) { map(0x000000, 0x03ffff).rom(); map(0x080000, 0x080001).portr("IN0"); map(0x080002, 0x080003).portr("IN1"); map(0x080006, 0x080007).portr("UNK"); map(0x080008, 0x080009).portr("DSW1"); map(0x084000, 0x084003).w("ymsnd", FUNC(ym2203_device::write)).umask16(0x00ff); // ym ? map(0x088000, 0x0883ff).ram().w(m_palette, FUNC(palette_device::write16)).share("palette"); map(0x08c000, 0x08c1ff).ram().share("vregs"); // video registers /* this might actually be 1 tilemap with some funky rowscroll / columnscroll enabled, I'm not sure */ // certainly seems derivative of the design used in Urashima Mahjong (jalmah.cpp), not identical tho map(0x090000, 0x090fff).ram().share("left_fg_vratop"); map(0x091000, 0x091fff).ram().share("right_fg_vratop"); map(0x092000, 0x092fff).ram().share("left_fg_vrabot"); map(0x093000, 0x093fff).ram().share("right_fg_vrabot"); // map(0x094000, 0x094001).noprw(); // Set at POST via clr.w, unused afterwards map(0x098000, 0x098001).w(FUNC(ddealer_state::flipscreen_w)); map(0x09c000, 0x09cfff).ram().w(FUNC(ddealer_state::back_vram_w)).share("back_vram"); // bg tilemap map(0x0f0000, 0x0fdfff).ram().share("work_ram"); map(0x0fe000, 0x0fefff).ram().w(FUNC(ddealer_state::mcu_shared_w)).share("mcu_shared_ram"); map(0x0ff000, 0x0fffff).ram(); } static INPUT_PORTS_START( ddealer ) PORT_START("IN0") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN2 ) PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_SERVICE1 ) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START1 ) PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_START2 ) PORT_SERVICE( 0x20, IP_ACTIVE_LOW ) //used, "test" in service mode, unknown purpose PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_START("IN1") PORT_BIT( 0x0001, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(1) PORT_BIT( 0x0002, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(1) PORT_BIT( 0x0004, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(1) PORT_BIT( 0x0008, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(1) PORT_BIT( 0x0010, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(1) PORT_BIT( 0x0020, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(1) PORT_BIT( 0x0040, IP_ACTIVE_HIGH, IPT_UNKNOWN ) PORT_BIT( 0x0080, IP_ACTIVE_HIGH, IPT_UNKNOWN ) PORT_BIT( 0x0100, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(2) PORT_BIT( 0x0200, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(2) PORT_BIT( 0x0400, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(2) PORT_BIT( 0x0800, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(2) PORT_BIT( 0x1000, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(2) PORT_BIT( 0x2000, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_PLAYER(2) PORT_BIT( 0x4000, IP_ACTIVE_HIGH, IPT_UNKNOWN ) PORT_BIT( 0x8000, IP_ACTIVE_HIGH, IPT_UNKNOWN ) PORT_START("DSW1") PORT_DIPUNUSED_DIPLOC( 0x0001, IP_ACTIVE_LOW, "SW1:8" ) /* Listed as "Always Off" */ PORT_DIPUNUSED_DIPLOC( 0x0002, IP_ACTIVE_LOW, "SW1:7" ) /* Listed as "Always Off" */ PORT_DIPNAME( 0x001c, 0x0000, DEF_STR( Coin_B ) ) PORT_DIPLOCATION("SW1:6,5,4") PORT_DIPSETTING( 0x0010, DEF_STR( 4C_1C ) ) PORT_DIPSETTING( 0x0008, DEF_STR( 3C_1C ) ) PORT_DIPSETTING( 0x0018, DEF_STR( 2C_1C ) ) PORT_DIPSETTING( 0x001c, DEF_STR( 1C_1C ) ) PORT_DIPSETTING( 0x000c, DEF_STR( 1C_2C ) ) PORT_DIPSETTING( 0x0014, DEF_STR( 1C_3C ) ) PORT_DIPSETTING( 0x0004, DEF_STR( 1C_4C ) ) PORT_DIPSETTING( 0x0000, DEF_STR( Free_Play ) ) PORT_DIPNAME( 0x00e0, 0x0000, DEF_STR( Coin_A ) ) PORT_DIPLOCATION("SW1:3,2,1") PORT_DIPSETTING( 0x0080, DEF_STR( 4C_1C ) ) PORT_DIPSETTING( 0x0040, DEF_STR( 3C_1C ) ) PORT_DIPSETTING( 0x00c0, DEF_STR( 2C_1C ) ) PORT_DIPSETTING( 0x00e0, DEF_STR( 1C_1C ) ) PORT_DIPSETTING( 0x0060, DEF_STR( 1C_2C ) ) PORT_DIPSETTING( 0x00a0, DEF_STR( 1C_3C ) ) PORT_DIPSETTING( 0x0020, DEF_STR( 1C_4C ) ) PORT_DIPSETTING( 0x0000, DEF_STR( Free_Play ) ) /* Not listed in "dips" text, but current effect is FREE PLAY. Is this correct? */ PORT_DIPNAME( 0x0100, 0x0100, DEF_STR( Flip_Screen ) ) PORT_DIPLOCATION("SW2:8") PORT_DIPSETTING( 0x0100, DEF_STR( Off ) ) PORT_DIPSETTING( 0x0000, DEF_STR( On ) ) PORT_DIPNAME( 0x0200, 0x0000, DEF_STR( Demo_Sounds ) ) PORT_DIPLOCATION("SW2:7") PORT_DIPSETTING( 0x0200, DEF_STR( Off ) ) PORT_DIPSETTING( 0x0000, DEF_STR( On ) ) PORT_DIPNAME( 0x0400, 0x0000, DEF_STR( Language ) ) PORT_DIPLOCATION("SW2:6") PORT_DIPSETTING( 0x0400, DEF_STR( Japanese ) ) PORT_DIPSETTING( 0x0000, DEF_STR( English ) ) PORT_DIPNAME( 0x1800, 0x1800, DEF_STR( Difficulty ) ) PORT_DIPLOCATION("SW2:5,4") PORT_DIPSETTING( 0x0800, DEF_STR( Easy ) ) PORT_DIPSETTING( 0x1800, DEF_STR( Normal ) ) PORT_DIPSETTING( 0x1000, DEF_STR( Hard ) ) PORT_DIPSETTING( 0x0000, DEF_STR( Hardest ) ) PORT_DIPNAME( 0x2000, 0x2000, "Lady Stripping" ) PORT_DIPLOCATION("SW2:3") PORT_DIPSETTING( 0x0000, DEF_STR( Off ) ) PORT_DIPSETTING( 0x2000, DEF_STR( On ) ) PORT_DIPUNUSED_DIPLOC( 0x4000, IP_ACTIVE_LOW, "SW2:2" ) /* Listed as "Always Off" */ PORT_DIPUNUSED_DIPLOC( 0x8000, IP_ACTIVE_LOW, "SW2:1" ) /* Listed as "Always Off" */ PORT_START("UNK") PORT_BIT( 0x00ff, IP_ACTIVE_HIGH, IPT_UNKNOWN ) // MCU port? PORT_BIT( 0xff00, IP_ACTIVE_LOW, IPT_UNUSED ) INPUT_PORTS_END static const gfx_layout charlayout = { 8,8, RGN_FRAC(1,1), 4, { 0, 1, 2, 3 }, { 0*4, 1*4, 2*4, 3*4, 4*4, 5*4, 6*4, 7*4 }, { 0*32, 1*32, 2*32, 3*32, 4*32, 5*32, 6*32, 7*32 }, 32*8 }; static const gfx_layout tilelayout = { 16,16, RGN_FRAC(1,1), 4, { 0, 1, 2, 3 }, { 0*4, 1*4, 2*4, 3*4, 4*4, 5*4, 6*4, 7*4, 16*32+0*4, 16*32+1*4, 16*32+2*4, 16*32+3*4, 16*32+4*4, 16*32+5*4, 16*32+6*4, 16*32+7*4 }, { 0*32, 1*32, 2*32, 3*32, 4*32, 5*32, 6*32, 7*32, 8*32, 9*32, 10*32, 11*32, 12*32, 13*32, 14*32, 15*32 }, 32*32 }; static GFXDECODE_START( gfx_ddealer ) GFXDECODE_ENTRY( "gfx1", 0, charlayout, 0x000, 16 ) GFXDECODE_ENTRY( "gfx2", 0, tilelayout, 0x100, 16 ) GFXDECODE_END void ddealer_state::machine_start() { save_item(NAME(m_respcount)); save_item(NAME(m_input_pressed)); save_item(NAME(m_coin_input)); } void ddealer_state::machine_reset() { m_respcount = 0; m_input_pressed = 0; m_coin_input = 0; } MACHINE_CONFIG_START(ddealer_state::ddealer) MCFG_DEVICE_ADD("maincpu" , M68000, XTAL(16'000'000)/2) /* 8MHz */ MCFG_DEVICE_PROGRAM_MAP(ddealer_map) MCFG_DEVICE_VBLANK_INT_DRIVER("screen", ddealer_state, irq4_line_hold) MCFG_DEVICE_PERIODIC_INT_DRIVER(ddealer_state, irq1_line_hold, 90)//guess, controls music tempo, 112 is way too fast // M50747 or NMK-110 8131 MCU MCFG_DEVICE_ADD("gfxdecode", GFXDECODE, "palette", gfx_ddealer) MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_REFRESH_RATE(60) MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0)) MCFG_SCREEN_SIZE(512, 256) MCFG_SCREEN_VISIBLE_AREA(0*8, 48*8-1, 2*8, 30*8-1) MCFG_SCREEN_UPDATE_DRIVER(ddealer_state, screen_update) MCFG_SCREEN_PALETTE("palette") MCFG_PALETTE_ADD("palette", 0x200) MCFG_PALETTE_FORMAT(RRRRGGGGBBBBRGBx) MCFG_TIMER_DRIVER_ADD_PERIODIC("coinsim", ddealer_state, mcu_sim, attotime::from_hz(10000)) SPEAKER(config, "mono").front_center(); MCFG_DEVICE_ADD("ymsnd", YM2203, XTAL(6'000'000) / 8) /* 7.5KHz */ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.40) MACHINE_CONFIG_END READ16_MEMBER(ddealer_state::mcu_r) { static const int resp[] = { 0x00, /* performs a clr.l when doing the ram test, triggering a read here */ 0x93, 0xc7, 0x00, 0x8000, 0x2d, 0x6d, 0x00, 0x8000, 0x99, 0xc7, 0x00, 0x8000, 0x2a, 0x6a, 0x00, 0x8000, 0x8e, 0xc7, 0x00, 0x8000, -1}; int res; res = resp[m_respcount++]; if (resp[m_respcount] < 0) m_respcount = 0; return res; } void ddealer_state::init_ddealer() { m_maincpu->space(AS_PROGRAM).install_read_handler(0xfe01c, 0xfe01d, read16_delegate(FUNC(ddealer_state::mcu_r), this)); } ROM_START( ddealer ) ROM_REGION( 0x40000, "maincpu", 0 ) /* 68000 Code */ ROM_LOAD16_BYTE( "1.ic6", 0x00001, 0x20000, CRC(ce0dff50) SHA1(2d7a03f6b9609aea7511a4dc49560a901b0b9f19) ) ROM_LOAD16_BYTE( "2.ic28", 0x00000, 0x20000, CRC(f00c346f) SHA1(bd73efb19d5f9efc88210d92a82a3f4595b41097) ) ROM_REGION( 0x40000, "mcu", 0 ) /* M50747? MCU Code */ ROM_LOAD( "mcu", 0x0000, 0x1000, NO_DUMP ) // might be NMK-110 8131 chip ROM_REGION( 0x20000, "gfx1", 0 ) /* BG0 */ ROM_LOAD( "4.ic65", 0x00000, 0x20000, CRC(4939ff1b) SHA1(af2f2feeef5520d775731a58cbfc8fcc913b7348) ) ROM_REGION( 0x80000, "gfx2", 0 ) /* BG1 */ ROM_LOAD( "3.ic64", 0x00000, 0x80000, CRC(660e367c) SHA1(54827a8998c58c578c594126d5efc18a92363eaa)) ROM_REGION( 0x200, "user1", 0 ) /* Proms */ ROM_LOAD( "5.ic67", 0x000, 0x100, NO_DUMP ) ROM_LOAD( "6.ic86", 0x100, 0x100, NO_DUMP ) ROM_END GAME( 1991, ddealer, 0, ddealer, ddealer, ddealer_state, init_ddealer, ROT0, "NMK", "Double Dealer", MACHINE_SUPPORTS_SAVE | MACHINE_UNEMULATED_PROTECTION )