// license:BSD-3-Clause // copyright-holders:David Haywood /* Intersecti No names on the pcb and the only ascii text is in the sound rom "Intersecti". Has a daughterboard with "Serai-Padova-1" on it Having disassembled the 1911 code roms, I'd guess that there is a rom in the epoxy block. I've not had a chance to wire up the board yet, but it might be possible to write a trojan to display the rom(s) at $8000 */ #include "emu.h" #include "cpu/z80/z80.h" #include "screen.h" class intrscti_state : public driver_device { public: intrscti_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_maincpu(*this,"maincpu"), m_subcpu(*this,"subcpu"), m_vram(*this, "vram"), m_gfxdecode(*this, "gfxdecode"), m_palette(*this, "palette") { } required_device m_maincpu; required_device m_subcpu; required_shared_ptr m_vram; required_device m_gfxdecode; required_device m_palette; void init_intrscti(); virtual void video_start() override; uint32_t screen_update_intrscti(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); void intrscti(machine_config &config); void intrscti_io_map(address_map &map); void intrscti_map(address_map &map); void intrscti_sub_io_map(address_map &map); void intrscti_sub_map(address_map &map); }; void intrscti_state::video_start() { } uint32_t intrscti_state::screen_update_intrscti(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { int y,x; int count; bitmap.fill(m_palette->black_pen(), cliprect); count = 0; for (y=0;y<32;y++) { for (x=0;x<32;x++) { int dat; dat = m_vram[count]; m_gfxdecode->gfx(0)->transpen(bitmap,cliprect,dat/*+0x100*/,0,0,0,x*8,y*8,0); count++; } } count = 0x400; for (y=0;y<32;y++) { for (x=0;x<32;x++) { int dat; dat = m_vram[count]; m_gfxdecode->gfx(0)->transpen(bitmap,cliprect,dat+0x100,0,0,0,x*8,y*8,0); count++; } } return 0; } void intrscti_state::intrscti_map(address_map &map) { map(0x0000, 0x1fff).rom(); map(0x6000, 0x67ff).ram(); map(0x7000, 0x77ff).ram().share("vram"); map(0x8000, 0x8fff).rom(); } void intrscti_state::intrscti_io_map(address_map &map) { map.global_mask(0xff); map(0x00, 0x00).portr("IN0"); map(0x01, 0x01).portr("IN1"); } void intrscti_state::intrscti_sub_map(address_map &map) { map(0x0000, 0x07ff).rom(); map(0x2000, 0x23ff).ram(); // AM_RANGE(0x0000, 0xffff) AM_WRITENOP } void intrscti_state::intrscti_sub_io_map(address_map &map) { map.global_mask(0xff); // AM_RANGE(0x00, 0xff) AM_NOP } static INPUT_PORTS_START( intrscti ) PORT_START("IN0") PORT_DIPNAME( 0x01, 0x01, "DSWA" ) PORT_DIPSETTING( 0x01, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x02, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x04, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x08, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x10, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x20, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x40, 0x00, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x40, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x80, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_START("IN1") PORT_DIPNAME( 0x01, 0x01, "DSWA" ) PORT_DIPSETTING( 0x01, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x02, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x04, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x08, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x10, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x20, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x40, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x80, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, 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_intrscti ) GFXDECODE_ENTRY( "gfx1", 0, tiles8x8_layout, 0, 16 ) GFXDECODE_END MACHINE_CONFIG_START(intrscti_state::intrscti) /* basic machine hardware */ MCFG_DEVICE_ADD("maincpu", Z80, 4000000) /* ? MHz */ MCFG_DEVICE_PROGRAM_MAP(intrscti_map) MCFG_DEVICE_IO_MAP(intrscti_io_map) MCFG_DEVICE_VBLANK_INT_DRIVER("screen", intrscti_state, irq0_line_hold) MCFG_DEVICE_ADD("subcpu", Z80, 4000000) /* ? MHz */ MCFG_DEVICE_PROGRAM_MAP(intrscti_sub_map) MCFG_DEVICE_IO_MAP(intrscti_sub_io_map) /* video hardware */ MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_REFRESH_RATE(60) MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0)) MCFG_SCREEN_SIZE(256, 256) MCFG_SCREEN_VISIBLE_AREA(0, 256-1, 0, 256-1) MCFG_SCREEN_UPDATE_DRIVER(intrscti_state, screen_update_intrscti) MCFG_SCREEN_PALETTE("palette") MCFG_DEVICE_ADD("gfxdecode", GFXDECODE, "palette", gfx_intrscti) MCFG_PALETTE_ADD("palette", 0x100) MACHINE_CONFIG_END ROM_START( intrscti ) ROM_REGION( 0x10000, "maincpu", 0 ) ROM_LOAD( "1911_1.7g", 0x0000, 0x1000, CRC(8940e6ee) SHA1(50da11a6fab8f31c72c08dbf374268fff18a74e3) ) ROM_LOAD( "1911_2.8g", 0x1000, 0x1000, CRC(a461031e) SHA1(338c8cd79b98c666edd204150dea65ce4b9ec288) ) ROM_LOAD( "epoxy_block", 0x8000,0x1000, NO_DUMP ) ROM_REGION( 0x10000, "subcpu", 0 ) ROM_LOAD( "ok.13b", 0x00000, 0x800, CRC(cbfa3eba) SHA1(b5a81a4535e7883a3ff8fb4021ddd7dbfaf3c7ae) ) ROM_REGION( 0x3000, "gfx1", 0 ) ROM_LOAD( "r.5c", 0x0000, 0x1000, CRC(092cc8f2) SHA1(f0c717128e0ac6adc032616a8cafaec88aa0fb90) ) ROM_LOAD( "g.5b", 0x1000, 0x1000, CRC(2d7cf465) SHA1(70fcb5818f2dfe499bb52501403449660837557d) ) ROM_LOAD( "b.5a", 0x2000, 0x1000, CRC(8951fb7e) SHA1(c423bf0536e3a09453814172e31b47f9c3c3324c) ) ROM_END void intrscti_state::init_intrscti() { uint8_t *cpu = memregion( "maincpu" )->base(); for (int i = 0; i < 0x1000; i++) cpu[i+0x8000]=0xc9; // ret /* 0x8208 -> string copy (hl = pointer to videoram, de = pointer to epoxy block ROM) */ /* one of the protection sub-routines does this */ for (int i = 0; i < 0x400; i++) { m_vram[i+0x000] = 0x0e; m_vram[i+0x400] = 0xff; } } GAME( 19??, intrscti, 0, intrscti, intrscti, intrscti_state, init_intrscti, ROT0, "", "Intersecti", MACHINE_NOT_WORKING | MACHINE_UNEMULATED_PROTECTION | MACHINE_NO_SOUND )