// license:BSD-3-Clause // copyright-holders:David Haywood /* Royal Gum Main components - Big Black Box in the middle of the PCB. Contains the main CPU (some kind of M6502) and maybe the 6845 (not seen anywhere on PCB) - 24.000000 Mhz osc - 2 x M82C55A - AY38910A/P - NEC UPD7759 - MK48Z08B-10 - 1 8-dip bank - 1 4-dip bank TODO: - stuck at the play screen with 'attendere' (wait) message after coining up; - some devices aren't mapped and others may be mapped wrong. */ #include "emu.h" #include "cpu/m6502/m65c02.h" #include "machine/i8255.h" #include "machine/nvram.h" #include "sound/ay8910.h" #include "sound/upd7759.h" #include "video/mc6845.h" #include "emupal.h" #include "screen.h" #include "speaker.h" namespace { class rgum_state : public driver_device { public: rgum_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_vram(*this, "vram"), m_cram(*this, "cram"), m_maincpu(*this, "maincpu"), m_aysnd(*this, "aysnd"), m_upd(*this, "upd"), m_gfxdecode(*this, "gfxdecode"), m_palette(*this, "palette") { } void rgum(machine_config &config); DECLARE_READ_LINE_MEMBER(heartbeat_r); protected: virtual void video_start() override; virtual void machine_reset() override; private: required_shared_ptr m_vram; required_shared_ptr m_cram; required_device m_maincpu; required_device m_aysnd; required_device m_upd; required_device m_gfxdecode; required_device m_palette; uint8_t m_hbeat = 0; bool m_aysnd_data_next = false; bool m_aysnd_toggle_enabled = false; void aysnd_2000_w(uint8_t data); void aysnd_2002_w(uint8_t data); void upd_data_w(uint8_t data); uint8_t upd_ready_r(); uint8_t upd_busy_r(); uint8_t upd_reset_r(); uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect); void main_map(address_map &map); }; void rgum_state::video_start() { m_hbeat = 0; save_item(NAME(m_hbeat)); save_item(NAME(m_aysnd_data_next)); save_item(NAME(m_aysnd_toggle_enabled)); } void rgum_state::machine_reset() { m_aysnd_data_next = false; m_aysnd_toggle_enabled = false; } uint32_t rgum_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) { gfx_element *gfx = m_gfxdecode->gfx(0); int count = 0; for (int y = 0; y < 32; y++) { for (int x = 0;x < 66; x++) { int tile = m_vram[count] | ((m_cram[count] & 0xf) << 8); gfx->opaque(bitmap, cliprect, tile, 0, 0, 0, x * 8, y * 8); count++; } } return 0; } void rgum_state::aysnd_2000_w(uint8_t data) { m_aysnd_toggle_enabled = true; } void rgum_state::aysnd_2002_w(uint8_t data) { // AY-3-8910 interface is bizarre. Address is written to $2000 and then $2002 with successive instructions, then data is written to both $2000 and $2002. // Sound data contains many pairs where the address byte is $50. Do these control some other device? m_aysnd->address_data_w(m_aysnd_data_next, data); if (m_aysnd_toggle_enabled) { m_aysnd_data_next = !m_aysnd_data_next; m_aysnd_toggle_enabled = false; } } void rgum_state::upd_data_w(u8 data) { m_upd->port_w(data); m_upd->start_w(1); } uint8_t rgum_state::upd_ready_r() { if (!machine().side_effects_disabled()) { m_upd->reset_w(1); m_upd->start_w(0); } return 0; } uint8_t rgum_state::upd_busy_r() { return m_upd->busy_r() ? 0x80 : 0; } uint8_t rgum_state::upd_reset_r() { if (!machine().side_effects_disabled()) m_upd->reset_w(0); return 0; } void rgum_state::main_map(address_map &map) // TODO: map MK48Z08B-10 { map(0x0000, 0x07ff).ram(); // not all of it? map(0x0800, 0x0800).w("crtc", FUNC(mc6845_device::address_w)); map(0x0801, 0x0801).rw("crtc", FUNC(mc6845_device::register_r), FUNC(mc6845_device::register_w)); map(0x2000, 0x2000).w(FUNC(rgum_state::aysnd_2000_w)); map(0x2002, 0x2002).r("aysnd", FUNC(ay8910_device::data_r)).w(FUNC(rgum_state::aysnd_2002_w)); map(0x2800, 0x2800).w(FUNC(rgum_state::upd_data_w)); map(0x2801, 0x2801).r(FUNC(rgum_state::upd_ready_r)); map(0x2802, 0x2802).r(FUNC(rgum_state::upd_busy_r)); map(0x2803, 0x2803).r(FUNC(rgum_state::upd_reset_r)); map(0x2c00, 0x2c03).w("ppi8255_1", FUNC(i8255_device::write)); map(0x3000, 0x3003).rw("ppi8255_0", FUNC(i8255_device::read), FUNC(i8255_device::write)); map(0x4000, 0x47ff).ram().share(m_vram); map(0x5000, 0x57ff).ram().share(m_cram); map(0x8000, 0xffff).rom(); } READ_LINE_MEMBER(rgum_state::heartbeat_r) { return m_hbeat; } static INPUT_PORTS_START( rgum ) PORT_START("IN0") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_SLOT_STOP1 ) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_SLOT_STOP2 ) PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_SLOT_STOP3 ) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_SLOT_STOP4 ) PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_UNKNOWN ) // "PIN'S SW." PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_READ_LINE_MEMBER(rgum_state, heartbeat_r) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME("Stop Reel 5") PORT_CODE(KEYCODE_N) PORT_START("IN1") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNKNOWN ) // "GUM SW." PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_START1 ) PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_GAMBLE_PAYOUT ) // "PAY LOT" PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN ) 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("COIN") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_SERVICE1 ) // "COIN SERV" PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_COIN2 ) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_SERVICE ) PORT_START("DSW1") PORT_DIPNAME( 0x03, 0x00, "Game Level" ) PORT_DIPLOCATION("DSW1:1,2") // 'livello gioco' in test mode PORT_DIPSETTING( 0x00, "40" ) PORT_DIPSETTING( 0x01, "50" ) PORT_DIPSETTING( 0x02, "60" ) PORT_DIPSETTING( 0x03, "80" ) PORT_DIPNAME( 0x04, 0x00, DEF_STR( Language ) ) PORT_DIPLOCATION("DSW1:3") // seems buggy: Italian works as expected while French just puts some disclaimer strings in place of the winning combinations PORT_DIPSETTING( 0x00, DEF_STR( Italian ) ) PORT_DIPSETTING( 0x04, DEF_STR( French ) ) PORT_DIPNAME( 0x08, 0x00, DEF_STR( Unknown ) ) PORT_DIPLOCATION("DSW1:4") PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x08, DEF_STR( On ) ) PORT_DIPNAME( 0x10, 0x00, DEF_STR( Unknown ) ) PORT_DIPLOCATION("DSW1:5") PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x10, DEF_STR( On ) ) PORT_DIPNAME( 0x20, 0x00, DEF_STR( Unknown ) ) PORT_DIPLOCATION("DSW1:6") PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x20, DEF_STR( On ) ) PORT_DIPNAME( 0x40, 0x00, DEF_STR( Unknown ) ) PORT_DIPLOCATION("DSW1:7") PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x40, DEF_STR( On ) ) PORT_DIPNAME( 0x80, 0x00, DEF_STR( Unknown ) ) PORT_DIPLOCATION("DSW1:8") PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x80, DEF_STR( On ) ) PORT_START("DSW2") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) ) PORT_DIPLOCATION("DSW2:1") // must stay on at boot or the game will stop with 'switch 2 dip 1 off' message PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x10, DEF_STR( On ) ) PORT_DIPNAME( 0x20, 0x00, DEF_STR( Unknown ) ) PORT_DIPLOCATION("DSW2:2") PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x20, DEF_STR( On ) ) PORT_DIPNAME( 0x40, 0x00, DEF_STR( Unknown ) ) PORT_DIPLOCATION("DSW2:3") PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x40, DEF_STR( On ) ) PORT_DIPNAME( 0x80, 0x00, DEF_STR( Unknown ) ) PORT_DIPLOCATION("DSW2:4") PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x80, DEF_STR( On ) ) INPUT_PORTS_END static const gfx_layout tiles8x8_layout = { 8,8, RGN_FRAC(1,3), 3, { RGN_FRAC(0,3),RGN_FRAC(1,3),RGN_FRAC(2,3) }, { 0, 1,2,3,4,5,6,7 }, { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 }, 8*8 }; static GFXDECODE_START( gfx_rgum ) GFXDECODE_ENTRY( "tiles", 0, tiles8x8_layout, 0, 16 ) GFXDECODE_END void rgum_state::rgum(machine_config &config) { // basic machine hardware M65C02(config, m_maincpu, 24_MHz_XTAL / 16); // divisor not verified m_maincpu->set_addrmap(AS_PROGRAM, &rgum_state::main_map); // NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0); // MK48Z08 i8255_device &ppi(I8255A(config, "ppi8255_0")); ppi.in_pa_callback().set_ioport("IN0"); ppi.in_pb_callback().set_ioport("DSW1"); ppi.in_pc_callback().set_ioport("DSW2"); ppi.out_pc_callback().set([this](uint8_t data) { m_hbeat = BIT(data, 0); }); I8255A(config, "ppi8255_1"); // video hardware screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); screen.set_refresh_hz(60); screen.set_vblank_time(ATTOSECONDS_IN_USEC(0)); screen.set_size(256, 256); screen.set_visarea(0, 256-1, 0, 256-1); screen.set_screen_update(FUNC(rgum_state::screen_update)); mc6845_device &crtc(MC6845(config, "crtc", 24_MHz_XTAL / 16)); // unknown clock & type, hand tuned to get ~50 fps (?) crtc.set_screen("screen"); crtc.set_show_border_area(false); crtc.set_char_width(8); crtc.out_vsync_callback().set_inputline(m_maincpu, INPUT_LINE_NMI); GFXDECODE(config, m_gfxdecode, m_palette, gfx_rgum); PALETTE(config, m_palette).set_entries(0x100); SPEAKER(config, "mono").front_center(); ay8910_device &aysnd(AY8910(config, "aysnd", 24_MHz_XTAL / 16)); aysnd.add_route(ALL_OUTPUTS, "mono", 0.50); // guessed to use the same xtal as the crtc aysnd.port_a_read_callback().set_ioport("COIN"); aysnd.port_b_read_callback().set_ioport("IN1"); UPD7759(config, "upd").add_route(ALL_OUTPUTS, "mono", 0.50); } ROM_START( rgum ) // PCB SL65 V2 ROM_REGION( 0x10000, "maincpu", 0 ) ROM_LOAD( "rgum.u5", 0x00000, 0x10000, CRC(9d2d1681) SHA1(1c1da0d970ea2cf58f7961417ab6986cc667da5c) ) // first half is empty ROM_REGION( 0x2000, "nvram", 0 ) // MK48Z08B-10 ROM_LOAD( "rgum.u6", 0x0000, 0x2000, CRC(15a34117) SHA1(c7e0aef4007abfaaa533feb026148ba03230b79f) ) // near the data ROM, mostly empty ROM_REGION( 0x18000, "tiles", 0 ) ROM_LOAD( "rgum.u16", 0x00000, 0x8000, CRC(2a2c8d78) SHA1(2ce335b900dccbc34ad8ae7ae02ec7c75ffcd559) ) // first half empty ROM_CONTINUE(0x00000,0x8000) ROM_LOAD( "rgum.u17", 0x08000, 0x8000, CRC(fae4e41a) SHA1(421aac2b567040c3a56e01aa70880c94450eaf76) ) // first half empty ROM_CONTINUE(0x08000,0x8000) ROM_LOAD( "rgum.u18", 0x10000, 0x8000, CRC(79b17da7) SHA1(31e1845261b0152df56135c212e55c4048b7496f) ) // first half empty ROM_CONTINUE(0x10000,0x8000) ROM_REGION( 0x20000, "upd", 0 ) ROM_LOAD( "rgum.u47", 0x00000, 0x20000, CRC(fe410eb9) SHA1(25180ba336269279f251be5483c210a581d27197) ) // 2nd half empty, almost identical to the one of ladygum in videosaa.cpp ROM_REGION( 0x200, "proms", 0 ) ROM_LOAD( "n82s147n", 0x000, 0x200, NO_DUMP ) ROM_REGION( 0x200, "plds", 0 ) ROM_LOAD( "gal16v8b-25lp", 0x000, 0x117, NO_DUMP ) ROM_END } // Anonymous namespace GAME( 1993, rgum, 0, rgum, rgum, rgum_state, empty_init, ROT0, "", "Royal Gum (Italy)", MACHINE_NOT_WORKING )