// license:BSD-3-Clause // copyright-holders: Angelo Salese /*********************************************************************************** MOLECULAR Computer Notes: File Processor i/os 0x00 DMA 0x10-0x13 CTC 0x20-0x23 CTC (Serial A Clock, Serial B Clock, Parity Error IRQ, Bus IRQ) 0x40-0x43 SIO (Serial A Data, Serial A Control, Serial B Data, Serial B Control) 0x60-0x63 FDC (Control, Cylinder, Sector, Data) 0x70 PLOW Lower Parallel i/o 0x71 PHI Upper Parallel i/o 0x80-0x87 HDD (Status, Data, Result 0-5) Application Processor i/os 0x00-0x03 PIO (Parallel A Data, Parallel A Control, Parallel B Data, Parallel B Control) 0x20 DMA 0x30-0x33 CTC (Serial A Clock, Serial B Clock, Parity Error IRQ, Bus IRQ) 0x60-0x63 SIO (Serial A Data, Serial A Control, Serial B Data, Serial B Control) File Processor irqs: 0xf80c PIO Ch A 0xf80e PIO Ch B 0xf810-0xf81e SIO Vector N 0xf820-0xf826 CTC A, Channel N 0xf828-0xf82e CTC B, Channel N (do not use) 0xf830 DMA (do not use) Application Processor irqs: 0xf80c PIO Ch A 0xf80e PIO Ch B 0xf810 DMA (do not use) 0xf820-0xf82e SIO Vector N App Processor puts on sio port: "??250 INITIALIZING..." File Processor puts on sio port: "??FP RESTART" TODO: - Info on HW ports is pretty scarse, other than a trim i/o documentation and schematics ***********************************************************************************/ #include "emu.h" #include "cpu/i86/i86.h" #include "cpu/z80/z80.h" //#include "sound/ay8910.h" #include "emupal.h" #include "screen.h" #include "speaker.h" #define I86_CLOCK XTAL(24'000'000) #define Z80_CLOCK XTAL(16'000'000) class molecula_state : public driver_device { public: molecula_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_filecpu(*this, "filecpu") { } void molecula(machine_config &config); protected: // driver_device overrides virtual void machine_start() override; virtual void machine_reset() override; virtual void video_start() override; private: // devices required_device m_filecpu; uint8_t *m_file_rom; uint8_t *m_app_rom; std::unique_ptr m_file_ram; std::unique_ptr m_app_ram; // screen updates uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); DECLARE_READ8_MEMBER(file_r); DECLARE_WRITE8_MEMBER(file_w); DECLARE_READ8_MEMBER(app_r); DECLARE_WRITE8_MEMBER(app_w); DECLARE_WRITE8_MEMBER(file_output_w); DECLARE_WRITE8_MEMBER(app_output_w); DECLARE_READ8_MEMBER( sio_r ); DECLARE_WRITE8_MEMBER( sio_w ); uint8_t app_ram_enable; uint8_t file_ram_enable; void molecula_palette(palette_device &palette) const; void molecula_app_io(address_map &map); void molecula_app_map(address_map &map); void molecula_file_io(address_map &map); void molecula_file_map(address_map &map); }; void molecula_state::video_start() { } uint32_t molecula_state::screen_update( screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect ) { return 0; } READ8_MEMBER(molecula_state::file_r) { if(file_ram_enable) return m_file_ram[offset]; return m_file_rom[offset & 0x7ff]; } WRITE8_MEMBER(molecula_state::file_w) { m_file_ram[offset] = data; } READ8_MEMBER(molecula_state::app_r) { if(app_ram_enable) return m_app_ram[offset]; return m_app_rom[offset & 0x7ff]; } WRITE8_MEMBER(molecula_state::app_w) { m_app_ram[offset] = data; } WRITE8_MEMBER(molecula_state::file_output_w) { if(offset == 0) file_ram_enable = (data & 0x80) >> 7; if(data & 0x7f || offset) printf("FILE output -> %02x %02x\n",data,offset); } WRITE8_MEMBER(molecula_state::app_output_w) { app_ram_enable = (data & 0x80) >> 7; if(data & 0x7f) printf("APP 0x10 -> %02x\n",data); } READ8_MEMBER( molecula_state::sio_r) { if(offset == 1) return 4; return 0; } WRITE8_MEMBER( molecula_state::sio_w) { if(offset == 0) printf("%c\n",data); } void molecula_state::molecula_file_map(address_map &map) { map(0x0000, 0xffff).rw(FUNC(molecula_state::file_r), FUNC(molecula_state::file_w)); } void molecula_state::molecula_file_io(address_map &map) { map.global_mask(0xff); // map(0x40, 0x43).rw(FUNC(molecula_state::sio_r), FUNC(molecula_state::sio_w)); map(0x72, 0x73).w(FUNC(molecula_state::file_output_w)); // unknown } void molecula_state::molecula_app_map(address_map &map) { map(0x0000, 0xffff).rw(FUNC(molecula_state::app_r), FUNC(molecula_state::app_w)); } void molecula_state::molecula_app_io(address_map &map) { map.global_mask(0xff); map(0x10, 0x10).w(FUNC(molecula_state::app_output_w)); map(0x60, 0x63).rw(FUNC(molecula_state::sio_r), FUNC(molecula_state::sio_w)); } static INPUT_PORTS_START( molecula ) /* dummy active high structure */ PORT_START("SYSA") PORT_DIPNAME( 0x01, 0x00, "SYSA" ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x01, DEF_STR( On ) ) PORT_DIPNAME( 0x02, 0x00, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x02, DEF_STR( On ) ) PORT_DIPNAME( 0x04, 0x00, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x04, DEF_STR( On ) ) PORT_DIPNAME( 0x08, 0x00, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x08, DEF_STR( On ) ) PORT_DIPNAME( 0x10, 0x00, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x10, DEF_STR( On ) ) PORT_DIPNAME( 0x20, 0x00, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x20, DEF_STR( On ) ) PORT_DIPNAME( 0x40, 0x00, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x40, DEF_STR( On ) ) PORT_DIPNAME( 0x80, 0x00, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x80, DEF_STR( On ) ) /* dummy active low structure */ PORT_START("DSWA") 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 #if 0 static const gfx_layout charlayout = { 8,8, RGN_FRAC(1,1), 1, { RGN_FRAC(0,1) }, { 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 }; #endif static GFXDECODE_START( gfx_molecula ) // GFXDECODE_ENTRY( "gfx1", 0, charlayout, 0, 1 ) GFXDECODE_END void molecula_state::machine_start() { m_file_rom = memregion("fileipl")->base(); m_app_rom = memregion("appipl")->base(); m_file_ram = make_unique_clear(0x10000); m_app_ram = make_unique_clear(0x10000); } void molecula_state::machine_reset() { app_ram_enable = 0; file_ram_enable = 0; } void molecula_state::molecula_palette(palette_device &palette) const { } void molecula_state::molecula(machine_config &config) { /* basic machine hardware */ Z80(config, m_filecpu, Z80_CLOCK/2); m_filecpu->set_addrmap(AS_PROGRAM, &molecula_state::molecula_file_map); m_filecpu->set_addrmap(AS_IO, &molecula_state::molecula_file_io); m_filecpu->set_disable(); z80_device &appcpu(Z80(config, "appcpu", Z80_CLOCK/2)); appcpu.set_addrmap(AS_PROGRAM, &molecula_state::molecula_app_map); appcpu.set_addrmap(AS_IO, &molecula_state::molecula_app_io); // i8086_device &sub(I8086(config, "sub", I86_CLOCK/2)); // sub.set_addrmap(AS_PROGRAM, &molecula_state::molecula_map); // sub.set_addrmap(AS_IO, &molecula_state::molecula_io); // sub.set_disable(); /* video hardware */ screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); screen.set_refresh_hz(60); screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); screen.set_screen_update(FUNC(molecula_state::screen_update)); screen.set_size(32*8, 32*8); screen.set_visarea(0*8, 32*8-1, 0*8, 32*8-1); screen.set_palette("palette"); GFXDECODE(config, "gfxdecode", "palette", gfx_molecula); PALETTE(config, "palette", FUNC(molecula_state::molecula_palette), 8); /* sound hardware */ SPEAKER(config, "mono").front_center(); // AY8910(config, "aysnd", MAIN_CLOCK/4).add_route(ALL_OUTPUTS, "mono", 0.30); } /*************************************************************************** Game driver(s) ***************************************************************************/ ROM_START( molecula ) ROM_REGION( 0x10000, "fileipl", ROMREGION_ERASE00 ) ROM_LOAD( "sm32-111782-255-ff.bin", 0x000000, 0x000800, CRC(818f5f5a) SHA1(829b8fef99e6667d04d1944112823f3ea6a1a7e8) ) ROM_REGION( 0x10000, "appipl", ROMREGION_ERASE00 ) ROM_LOAD( "ap-111181-fa.bin", 0x000000, 0x000800, CRC(c289fc90) SHA1(2c0a17808971400e0289d65a11ef09e1f5eb90a0) ) ROM_REGION( 0x1000, "x86ipl", ROMREGION_ERASE00 ) ROM_LOAD16_BYTE( "ap86eve_2716.bin", 0x000000, 0x000800, CRC(d6484a11) SHA1(19cfea72afbc796e5b59c47095529d6d6350dd98) ) ROM_LOAD16_BYTE( "ap86odd_2716.bin", 0x000001, 0x000800, CRC(a4403c13) SHA1(2aeb07ad1f3381cbd1ec901e1f095ae737ded538) ) /* same as ap-111181-fa.bin, with a different & bad byte at [3]*/ ROM_REGION( 0x10000, "user2", ROMREGION_ERASE00 ) ROM_LOAD( "ap-111181-253-fd.bin", 0x000000, 0x000800, CRC(10f16080) SHA1(10f13a04c525cd4b67e2b6e1a3eed46c619a439c) ) /* proms */ ROM_REGION( 0x10000, "user3", ROMREGION_ERASE00 ) ROM_LOAD( "ms01_82s131.bin", 0x000000, 0x000200, CRC(433b139c) SHA1(32c1e853faacf85b11506a6903789ef129dd6adc) ) ROM_LOAD( "ms11_82s131.bin", 0x000200, 0x000200, CRC(cff86fed) SHA1(554ec15799afc6305c8cae0f9d55b32004479cdb) ) ROM_REGION( 0x10000, "misc", ROMREGION_ERASE00 ) ROM_LOAD( "mem_16r4.jed", 0x000000, 0x00caef, CRC(a8cfbdfe) SHA1(92be58ab3299e0d3ac37bd1e258054c881b9ad7f) ) ROM_LOAD( "rx_16r8.jed", 0x000000, 0x00caef, CRC(76f11ea8) SHA1(3ec41e5af04a89659f1b30270ee00e1fdf302ad6) ) ROM_LOAD( "tx_16r8.jed", 0x000000, 0x00caef, CRC(a91dcf0b) SHA1(16d261f064a4af29c3da58f3ae8a867bdc953ce6) ) ROM_LOAD( "wait_16r4.jed", 0x000000, 0x00caef, CRC(3aacfeb4) SHA1(1af1a8046e5a8a0337c85b55adceaef6e45702b7) ) ROM_END COMP( 1982, molecula, 0, 0, molecula, molecula, molecula_state, empty_init, "MOLECULAR", "MOLECULAR Computer", MACHINE_IS_SKELETON )