// license:BSD-3-Clause // copyright-holders:David Haywood /* Dragon Master (c)1994 Unico the hardware seems to fall somewhere between the hardware playmark commonly used and the hardware unico used for zero point etc. PCB Layout ---------- DM1001 DM1002 6116 6116 DM1003 6295 6295 6116 *PLCC84 DM1004 6116 DM1005 PIC16C55 DM1006 6116 6116 DM1007 6116 6116 DM1008 6116 6116 TPC1020 DSW1 62256 62256 (PLCC84) DM1000A DM1000B DSW2 68000 TPC1020 62256 (PLCC84) 62256 12MHz 32MHz Notes: *: Unknown PLCC84 chip (surface scratched) VSync: 60Hz HSync: 15.625kHz 68K clock: 16MHz */ #include "emu.h" #include "includes/drgnmst.h" #include "cpu/m68000/m68000.h" #include "cpu/pic16c5x/pic16c5x.h" #include "sound/okim6295.h" #include "screen.h" #include "speaker.h" WRITE16_MEMBER(drgnmst_state::drgnmst_coin_w) { machine().bookkeeping().coin_counter_w(0, data & 0x100); machine().bookkeeping().coin_lockout_w(0, ~data & 0x400); machine().bookkeeping().coin_lockout_w(1, ~data & 0x800); } WRITE16_MEMBER(drgnmst_state::drgnmst_snd_command_w) { if (ACCESSING_BITS_0_7) { m_snd_command = (data & 0xff); m_maincpu->yield(); } } WRITE16_MEMBER(drgnmst_state::drgnmst_snd_flag_w) { /* Enables the following 68K write operation to latch through to the PIC */ if (ACCESSING_BITS_0_7) m_snd_flag = 1; } READ8_MEMBER(drgnmst_state::pic16c5x_port0_r) { return m_pic16c5x_port0; } READ8_MEMBER(drgnmst_state::drgnmst_snd_command_r) { int data = 0; switch (m_oki_control & 0x1f) { case 0x12: data = (m_oki_2->read(space, 0) & 0x0f); break; case 0x16: data = (m_oki_1->read(space, 0) & 0x0f); break; case 0x0b: case 0x0f: data = m_snd_command; break; default: break; } return data; } READ8_MEMBER(drgnmst_state::drgnmst_snd_flag_r) { if (m_snd_flag) { m_snd_flag = 0; return 0x40; } return 0x00; } WRITE8_MEMBER(drgnmst_state::drgnmst_pcm_banksel_w) { /* This is a 4 bit port. Each pair of bits is used in part of the OKI PCM ROM bank selectors. See the Port 2 write handler below (drgnmst_snd_control_w) for details. */ m_pic16c5x_port0 = data; } WRITE8_MEMBER(drgnmst_state::drgnmst_oki_w) { m_oki_command = data; } WRITE8_MEMBER(drgnmst_state::drgnmst_snd_control_w) { /* This port controls communications to and from the 68K, both OKI devices, and part of the OKI PCM ROM bank selection. bit legend 7w ROM bank select for OKI-1, bit 2. Bank bits 1 & 0 are on Port 0 6r Flag from 68K to notify the PIC that a command is coming 5w ROM bank select for OKI-0, bit 2. Bank bits 1 & 0 are on Port 0 4w Set Port 1 to read sound to play command from 68K. (active low) 3w OKI enable comms? (active low) 2w OKI chip select? (0=OKI-1, 1=OKI-0) 1w Latch write data to OKI? (active low) 0w Activate read signal to OKI? (active low) The PCM ROM bank selects are 3 bits wide. 2 bits for each OKI BANK selects are on Port 0, and the third most significant bit is here. The MSb is written here immediately after writing to Port 0 so we handle the bank switching here. The PIC16C55 only supports bank selections for: OKI0 from 1 to 5 (Each bank selection switches the $20000-3ffff area) OKI1 from 0 to 7 (Each bank selection switches the entire $40000 area) The OKI0 banks are pre-configured below in the driver init. */ int oki_new_bank; m_oki_control = data; oki_new_bank = ((m_pic16c5x_port0 & 0xc) >> 2) | ((m_oki_control & 0x80) >> 5); if (oki_new_bank != m_oki0_bank) { m_oki0_bank = oki_new_bank; if (m_oki0_bank) oki_new_bank--; m_oki_1->set_rom_bank(oki_new_bank); } oki_new_bank = ((m_pic16c5x_port0 & 0x3) >> 0) | ((m_oki_control & 0x20) >> 3); if (oki_new_bank != m_oki1_bank) { m_oki1_bank = oki_new_bank; m_oki_2->set_rom_bank(oki_new_bank); } switch (m_oki_control & 0x1f) { case 0x11: // logerror("Writing %02x to OKI1", m_oki_command); // logerror(", PortC=%02x, Code=%02x, Bank0=%01x, Bank1=%01x\n", m_oki_control, m_snd_command, m_oki0_bank, m_oki1_bank); m_oki_2->write(space, 0, m_oki_command); break; case 0x15: // logerror("Writing %02x to OKI0", m_oki_command); // logerror(", PortC=%02x, Code=%02x, Bank0=%01x, Bank1=%01x\n", m_oki_control, m_snd_command, m_oki0_bank, m_oki1_bank); m_oki_1->write(space, 0, m_oki_command); break; default: break; } } /***************************** 68000 Memory Map *****************************/ void drgnmst_state::drgnmst_main_map(address_map &map) { map(0x000000, 0x0fffff).rom(); map(0x800000, 0x800001).portr("P1_P2"); map(0x800018, 0x800019).portr("SYSTEM"); map(0x80001a, 0x80001b).portr("DSW1"); map(0x80001c, 0x80001d).portr("DSW2"); map(0x800030, 0x800031).w(this, FUNC(drgnmst_state::drgnmst_coin_w)); map(0x800100, 0x80011f).writeonly().share("vidregs"); map(0x800120, 0x800121).nopw(); map(0x80014a, 0x80014b).nopw(); map(0x800154, 0x800155).writeonly().share("vidregs2"); // seems to be priority control map(0x800176, 0x800177).portr("EXTRA"); map(0x800180, 0x800181).w(this, FUNC(drgnmst_state::drgnmst_snd_command_w)); map(0x800188, 0x800189).w(this, FUNC(drgnmst_state::drgnmst_snd_flag_w)); map(0x8001e0, 0x8001e1).nopw(); map(0x900000, 0x903fff).ram().w(this, FUNC(drgnmst_state::drgnmst_paletteram_w)).share("paletteram"); map(0x904000, 0x907fff).ram().w(this, FUNC(drgnmst_state::drgnmst_md_videoram_w)).share("md_videoram"); map(0x908000, 0x90bfff).ram().w(this, FUNC(drgnmst_state::drgnmst_bg_videoram_w)).share("bg_videoram"); map(0x90c000, 0x90ffff).ram().w(this, FUNC(drgnmst_state::drgnmst_fg_videoram_w)).share("fg_videoram"); map(0x920000, 0x923fff).ram().share("rowscrollram"); // rowscroll ram map(0x930000, 0x9307ff).ram().share("spriteram"); // Sprites map(0xff0000, 0xffffff).ram(); } static INPUT_PORTS_START( drgnmst ) PORT_START("P1_P2") PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(1) PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(1) PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(1) PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(1) PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1) PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1) PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(1) PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_BUTTON4 ) PORT_PLAYER(1) PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(2) PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(2) PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(2) PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) 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_BUTTON3 ) PORT_PLAYER(2) PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_BUTTON4 ) PORT_PLAYER(2) PORT_START("SYSTEM") PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_COIN2 ) PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_START1 ) PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_START2 ) PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_START("DSW1") /* Test mode screen shows 3 sets of dipswitches */ PORT_DIPNAME( 0x0700, 0x0700, DEF_STR( Coinage ) ) PORT_DIPLOCATION("SW1:1,2,3") /* PORT_DIPSETTING( 0x0300, DEF_STR( Off ) ) */ PORT_DIPSETTING( 0x0000, DEF_STR( 4C_1C ) ) PORT_DIPSETTING( 0x0100, DEF_STR( 3C_1C ) ) PORT_DIPSETTING( 0x0200, DEF_STR( 2C_1C ) ) PORT_DIPSETTING( 0x0700, DEF_STR( 1C_1C ) ) PORT_DIPSETTING( 0x0600, DEF_STR( 1C_2C ) ) PORT_DIPSETTING( 0x0500, DEF_STR( 1C_3C ) ) PORT_DIPSETTING( 0x0400, DEF_STR( 1C_4C ) ) PORT_DIPNAME( 0x0800, 0x0000, DEF_STR( Allow_Continue ) ) PORT_DIPLOCATION("SW1:4") PORT_DIPSETTING( 0x0800, DEF_STR( Off ) ) PORT_DIPSETTING( 0x0000, DEF_STR( On ) ) PORT_DIPNAME( 0x1000, 0x0000, DEF_STR( Demo_Sounds ) ) PORT_DIPLOCATION("SW1:5") PORT_DIPSETTING( 0x1000, DEF_STR( Off ) ) PORT_DIPSETTING( 0x0000, DEF_STR( On ) ) PORT_DIPNAME( 0x2000, 0x2000, "Two credits to start" ) PORT_DIPLOCATION("SW1:6") PORT_DIPSETTING( 0x2000, DEF_STR( Off ) ) PORT_DIPSETTING( 0x0000, DEF_STR( On ) ) PORT_DIPNAME( 0x4000, 0x4000, DEF_STR ( Free_Play ) ) PORT_DIPLOCATION("SW1:7") PORT_DIPSETTING( 0x4000, DEF_STR( Off ) ) PORT_DIPSETTING( 0x0000, DEF_STR( On ) ) PORT_DIPNAME( 0x8000, 0x8000, "Game Pause" ) PORT_DIPLOCATION("SW1:8") PORT_DIPSETTING( 0x8000, DEF_STR( Off ) ) PORT_DIPSETTING( 0x0000, DEF_STR( On ) ) PORT_START("DSW2") PORT_DIPNAME( 0x0700, 0x0400, DEF_STR( Difficulty ) ) PORT_DIPLOCATION("SW2:1,2,3") PORT_DIPSETTING( 0x0700, DEF_STR( Easiest ) ) PORT_DIPSETTING( 0x0600, DEF_STR( Easier ) ) PORT_DIPSETTING( 0x0500, DEF_STR( Easy ) ) PORT_DIPSETTING( 0x0400, DEF_STR( Normal ) ) PORT_DIPSETTING( 0x0300, DEF_STR( Medium ) ) PORT_DIPSETTING( 0x0200, DEF_STR( Hard ) ) PORT_DIPSETTING( 0x0100, DEF_STR( Harder ) ) PORT_DIPSETTING( 0x0000, DEF_STR( Hardest ) ) PORT_DIPNAME( 0x0800, 0x0800, DEF_STR( Language ) ) PORT_DIPLOCATION("SW2:4") PORT_DIPSETTING( 0x0800, DEF_STR( English ) ) PORT_DIPSETTING( 0x0000, DEF_STR( Korean ) ) PORT_DIPNAME( 0x1000, 0x1000, DEF_STR( Game_Time ) ) PORT_DIPLOCATION("SW2:5") PORT_DIPSETTING( 0x1000, DEF_STR( Normal ) ) PORT_DIPSETTING( 0x0000, "Short" ) PORT_DIPNAME( 0x2000, 0x2000, "Stage Skip" ) PORT_DIPLOCATION("SW2:6") PORT_DIPSETTING( 0x2000, DEF_STR( Off ) ) PORT_DIPSETTING( 0x0000, DEF_STR( On ) ) PORT_DIPNAME( 0x4000, 0x4000, "Spit Color" ) PORT_DIPLOCATION("SW2:7") PORT_DIPSETTING( 0x4000, "Grey" ) PORT_DIPSETTING( 0x0000, "Red" ) PORT_SERVICE_DIPLOC( 0x8000, IP_ACTIVE_LOW, "SW2:8" ) PORT_START("EXTRA") PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_BUTTON5 ) PORT_PLAYER(1) PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_BUTTON6 ) PORT_PLAYER(1) PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_BUTTON7 ) PORT_PLAYER(1) PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_BUTTON5 ) PORT_PLAYER(2) PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_BUTTON6 ) PORT_PLAYER(2) PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_BUTTON7 ) PORT_PLAYER(2) PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_UNKNOWN ) INPUT_PORTS_END static const gfx_layout drgnmst_char8x8_layout = { 8,8, RGN_FRAC(1,1), 4, { 24,8,16, 0 }, { 0,1,2,3,4,5,6,7 }, { 0*32, 1*32, 2*32, 3*32, 4*32, 5*32, 6*32, 7*32 }, 8*32 }; static const gfx_layout drgnmst_char16x16_layout = { 16,16, RGN_FRAC(1,2), 4, { 24, 8,16,0 }, { RGN_FRAC(1,2)+0,RGN_FRAC(1,2)+1,RGN_FRAC(1,2)+2,RGN_FRAC(1,2)+3,RGN_FRAC(1,2)+4,RGN_FRAC(1,2)+5,RGN_FRAC(1,2)+6,RGN_FRAC(1,2)+7, 0,1,2,3,4,5,6,7 }, { 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 }, 16*32 }; static const gfx_layout drgnmst_char32x32_layout = { 32,32, RGN_FRAC(1,2), 4, { 24,8, 16,0 }, { RGN_FRAC(1,2)+0,RGN_FRAC(1,2)+1,RGN_FRAC(1,2)+2,RGN_FRAC(1,2)+3,RGN_FRAC(1,2)+4,RGN_FRAC(1,2)+5,RGN_FRAC(1,2)+6,RGN_FRAC(1,2)+7, 0,1,2,3,4,5,6,7, RGN_FRAC(1,2)+32,RGN_FRAC(1,2)+33,RGN_FRAC(1,2)+34,RGN_FRAC(1,2)+35,RGN_FRAC(1,2)+36,RGN_FRAC(1,2)+37,RGN_FRAC(1,2)+38,RGN_FRAC(1,2)+39, 32,33,34,35,36,37,38,39 }, { 0*64, 1*64, 2*64, 3*64, 4*64, 5*64, 6*64, 7*64, 8*64, 9*64,10*64,11*64,12*64,13*64,14*64,15*64, 16*64,17*64,18*64,19*64,20*64,21*64,22*64,23*64, 24*64,25*64,26*64,27*64,28*64,29*64,30*64,31*64 }, 32*64 }; static GFXDECODE_START( gfx_drgnmst ) GFXDECODE_ENTRY( "gfx1", 0, drgnmst_char16x16_layout, 0, 0x200 ) /* sprite tiles */ GFXDECODE_ENTRY( "gfx2", 0, drgnmst_char8x8_layout, 0x200, 0x200 ) /* fg tiles */ GFXDECODE_ENTRY( "gfx2", 0, drgnmst_char16x16_layout, 0x0400, 0x200 ) /* md tiles */ GFXDECODE_ENTRY( "gfx2", 0, drgnmst_char32x32_layout, 0x0600, 0x200 ) /* bg tiles */ GFXDECODE_END void drgnmst_state::machine_start() { save_item(NAME(m_snd_flag)); save_item(NAME(m_snd_command)); save_item(NAME(m_oki_control)); save_item(NAME(m_oki_command)); save_item(NAME(m_pic16c5x_port0)); save_item(NAME(m_oki1_bank)); save_item(NAME(m_oki0_bank)); } void drgnmst_state::machine_reset() { m_snd_flag = 0; m_snd_command = 0; m_oki_control = 0; m_oki_command = 0; m_pic16c5x_port0 = 0; m_oki1_bank = 0; m_oki0_bank = 0; } MACHINE_CONFIG_START(drgnmst_state::drgnmst) MCFG_DEVICE_ADD("maincpu", M68000, 12000000) /* Confirmed */ MCFG_DEVICE_PROGRAM_MAP(drgnmst_main_map) MCFG_DEVICE_VBLANK_INT_DRIVER("screen", drgnmst_state, irq2_line_hold) MCFG_DEVICE_ADD("audiocpu", PIC16C55, 32000000/8) /* Confirmed */ MCFG_PIC16C5x_READ_A_CB(READ8(*this, drgnmst_state, pic16c5x_port0_r)) MCFG_PIC16C5x_WRITE_A_CB(WRITE8(*this, drgnmst_state, drgnmst_pcm_banksel_w)) MCFG_PIC16C5x_READ_B_CB(READ8(*this, drgnmst_state, drgnmst_snd_command_r)) MCFG_PIC16C5x_WRITE_B_CB(WRITE8(*this, drgnmst_state, drgnmst_oki_w)) MCFG_PIC16C5x_READ_C_CB(READ8(*this, drgnmst_state, drgnmst_snd_flag_r)) MCFG_PIC16C5x_WRITE_C_CB(WRITE8(*this, drgnmst_state, drgnmst_snd_control_w)) MCFG_DEVICE_ADD("gfxdecode", GFXDECODE, "palette", gfx_drgnmst) MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_REFRESH_RATE(60) MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0)) MCFG_SCREEN_SIZE(64*8, 32*8) MCFG_SCREEN_VISIBLE_AREA(8*8, 56*8-1, 2*8, 30*8-1) MCFG_SCREEN_UPDATE_DRIVER(drgnmst_state, screen_update_drgnmst) MCFG_SCREEN_PALETTE("palette") MCFG_PALETTE_ADD("palette", 0x2000) /* sound hardware */ SPEAKER(config, "mono").front_center(); MCFG_DEVICE_ADD("oki1", OKIM6295, 32000000/32, okim6295_device::PIN7_HIGH) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00) MCFG_DEVICE_ADD("oki2", OKIM6295, 32000000/32, okim6295_device::PIN7_HIGH) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00) MACHINE_CONFIG_END ROM_START( drgnmst ) ROM_REGION( 0x100000, "maincpu", 0 ) /* 68000 Code */ ROM_LOAD16_BYTE( "dm1000e", 0x00000, 0x80000, CRC(29467dac) SHA1(42ca42340ffd9b04be23853ca4e936d0528a66ee) ) ROM_LOAD16_BYTE( "dm1000o", 0x00001, 0x80000, CRC(ba48e9cf) SHA1(1107f927424107918bb10ff23f40c50579b23836) ) ROM_REGION( 0x400, "audiocpu", ROMREGION_ERASE00 ) /* PIC16C55 Code */ // ROM_LOAD( "pic16c55", 0x0000, 0x400, CRC(531c9f8d) SHA1(8ec180b0566f2ce1e08f0347e5ad402c73b44049) ) /* ROM will be copied here by the init code from the USER1 region */ ROM_REGION( 0x1000, "user1", 0 ) ROM_LOAD( "pic16c55.hex", 0x000, 0x0b7b, CRC(f17011e7) SHA1(8f3bd94ffb528f661eed77d89e5b772442d2f5a6) ) ROM_REGION( 0x140000, "oki1", 0 ) /* OKI-0 Samples */ ROM_LOAD( "dm1001", 0x00000, 0x100000, CRC(63566f7f) SHA1(0fe6cb67a5d99cd54e46e9889ea121097756b9ef) ) ROM_REGION( 0x200000, "oki2", 0 ) /* OKI-1 Samples */ ROM_LOAD( "dm1002", 0x00000, 0x200000, CRC(0f1a874e) SHA1(8efc39f8ff7e6e7138b19959bd083b9df002acca) ) ROM_REGION( 0x800000, "gfx1", 0 ) /* Sprites (16x16x4) */ ROM_LOAD16_BYTE( "dm1003", 0x000000, 0x080000, CRC(0ca10e81) SHA1(abebd8437764110278c8b7e583d846db27e205ec) ) ROM_CONTINUE(0x400000, 0x080000) ROM_CONTINUE(0x100000, 0x080000) ROM_CONTINUE(0x500000, 0x080000) ROM_LOAD16_BYTE( "dm1005", 0x000001, 0x080000, CRC(4c2b1db5) SHA1(35d799cd13540e2aca1d1164291fe4c9938ed0ce) ) ROM_CONTINUE(0x400001, 0x080000) ROM_CONTINUE(0x100001, 0x080000) ROM_CONTINUE(0x500001, 0x080000) ROM_LOAD16_BYTE( "dm1004", 0x200000, 0x040000, CRC(1a9ac249) SHA1(c15c7399dcb24dcab05887e3711e5b31bb7f31e8) ) ROM_CONTINUE(0x600000, 0x040000) ROM_LOAD16_BYTE( "dm1006", 0x200001, 0x040000, CRC(c46da6fc) SHA1(f2256f02c833bc1074681729bd2b95fa6f3350cf) ) ROM_CONTINUE(0x600001, 0x040000) ROM_REGION( 0x200000, "gfx2", 0 ) /* BG Tiles (8x8x4, 16x16x4 and 32x32x4) */ ROM_LOAD16_BYTE( "dm1007", 0x000001, 0x100000, CRC(d5ad81c4) SHA1(03df467b218682a02245a6e8f500ab83de382448) ) ROM_LOAD16_BYTE( "dm1008", 0x000000, 0x100000, CRC(b8572be3) SHA1(29aab76821e0a56033cf06b0a1890b11804da8d8) ) ROM_END uint8_t drgnmst_state::drgnmst_asciitohex( uint8_t data ) { /* Convert ASCII data to HEX */ if ((data >= 0x30) && (data < 0x3a)) data -= 0x30; data &= 0xdf; /* remove case sensitivity */ if ((data >= 0x41) && (data < 0x5b)) data -= 0x37; return data; } void drgnmst_state::init_drgnmst() { uint8_t *drgnmst_PICROM_HEX = memregion("user1")->base(); uint16_t *drgnmst_PICROM = (uint16_t *)memregion("audiocpu")->base(); uint8_t *drgnmst_PCM = memregion("oki1")->base(); uint16_t src_pos = 0; uint16_t dst_pos = 0; /* Configure the OKI-0 PCM data into a MAME friendly bank format */ /* $00000-1ffff is the same through all banks */ /* $20000-3ffff in each bank is actually the switched area */ for (int32_t offs = 0x1ffff; offs >= 0; offs--) { drgnmst_PCM[0x120000 + offs] = drgnmst_PCM[0xa0000 + offs]; drgnmst_PCM[0x100000 + offs] = drgnmst_PCM[0x00000 + offs]; drgnmst_PCM[0x0e0000 + offs] = drgnmst_PCM[0x80000 + offs]; drgnmst_PCM[0x0c0000 + offs] = drgnmst_PCM[0x00000 + offs]; drgnmst_PCM[0x0a0000 + offs] = drgnmst_PCM[0x60000 + offs]; drgnmst_PCM[0x080000 + offs] = drgnmst_PCM[0x00000 + offs]; drgnmst_PCM[0x060000 + offs] = drgnmst_PCM[0x40000 + offs]; drgnmst_PCM[0x040000 + offs] = drgnmst_PCM[0x00000 + offs]; } /**** Convert the PIC16C55 ASCII HEX dump to pure HEX ****/ do { if ((drgnmst_PICROM_HEX[src_pos + 0] == ':') && (drgnmst_PICROM_HEX[src_pos + 1] == '1') && (drgnmst_PICROM_HEX[src_pos + 2] == '0')) { src_pos += 9; for (int32_t offs = 0; offs < 32; offs += 4) { uint8_t data_hi = drgnmst_asciitohex((drgnmst_PICROM_HEX[src_pos + offs + 0])); uint8_t data_lo = drgnmst_asciitohex((drgnmst_PICROM_HEX[src_pos + offs + 1])); if ((data_hi <= 0x0f) && (data_lo <= 0x0f)) { int32_t data = (data_hi << 4) | (data_lo << 0); data_hi = drgnmst_asciitohex((drgnmst_PICROM_HEX[src_pos + offs + 2])); data_lo = drgnmst_asciitohex((drgnmst_PICROM_HEX[src_pos + offs + 3])); if ((data_hi <= 0x0f) && (data_lo <= 0x0f)) { data |= (data_hi << 12) | (data_lo << 8); drgnmst_PICROM[dst_pos] = data; dst_pos += 1; } } } src_pos += 32; } /* Get the PIC16C55 Config register data */ if ((drgnmst_PICROM_HEX[src_pos + 0] == ':') && (drgnmst_PICROM_HEX[src_pos + 1] == '0') && (drgnmst_PICROM_HEX[src_pos + 2] == '2') && (drgnmst_PICROM_HEX[src_pos + 3] == '1')) { src_pos += 9; uint8_t data_hi = drgnmst_asciitohex((drgnmst_PICROM_HEX[src_pos + 0])); uint8_t data_lo = drgnmst_asciitohex((drgnmst_PICROM_HEX[src_pos + 1])); int32_t data = (data_hi << 4) | (data_lo << 0); data_hi = drgnmst_asciitohex((drgnmst_PICROM_HEX[src_pos + 2])); data_lo = drgnmst_asciitohex((drgnmst_PICROM_HEX[src_pos + 3])); data |= (data_hi << 12) | (data_lo << 8); m_audiocpu->pic16c5x_set_config(data); src_pos = 0x7fff; /* Force Exit */ } src_pos += 1; } while (src_pos < 0x0b7b); /* 0x0b7b is the size of the HEX rom loaded */ } GAME( 1994, drgnmst, 0, drgnmst, drgnmst, drgnmst_state, init_drgnmst, ROT0, "Unico", "Dragon Master", MACHINE_SUPPORTS_SAVE )