// license: BSD-3-Clause // copyright-holders: Dirk Best /*************************************************************************** Informer 213 (IBM 374/SNA V.22) Informer 213 AE (VT-100) Hardware: - EF68B09EP - 2x TC5564PL-15 [8k] (next to CG ROM) - 1x TC5565APL-15 [8k] + 2x TMS4464-15NL [32k] (next to CPU) - Z0853006PSC SCC - ASIC (INFORMER 44223) - 18.432 MHz XTAL TODO: - Figure out the ASIC and how it's connected ***************************************************************************/ #include "emu.h" #include "cpu/m6809/m6809.h" #include "machine/nvram.h" #include "machine/z80scc.h" #include "machine/informer_213_kbd.h" #include "bus/rs232/rs232.h" #include "bus/rs232/printer.h" #include "sound/beep.h" #include "emupal.h" #include "screen.h" #include "speaker.h" //************************************************************************** // TYPE DEFINITIONS //************************************************************************** class informer_213_state : public driver_device { public: informer_213_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_maincpu(*this, "maincpu"), m_nvram(*this, "nvram%u", 0U), m_screen(*this, "screen"), m_palette(*this, "palette"), m_scc(*this, "scc"), m_beep(*this, "beep"), m_nvram_bank(*this, "banked"), m_vram(*this, "vram"), m_aram(*this, "aram"), m_chargen(*this, "chargen") { } void informer_213(machine_config &config); protected: void machine_start() override; void machine_reset() override; private: required_device m_maincpu; required_device_array m_nvram; required_device m_screen; required_device m_palette; required_device m_scc; required_device m_beep; required_memory_bank m_nvram_bank; required_shared_ptr m_vram; required_shared_ptr m_aram; required_region_ptr m_chargen; void mem_map(address_map &map); uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect); void vblank_w(int state); void vram_start_addr_w(offs_t offset, uint8_t data); void vram_end_addr_w(offs_t offset, uint8_t data); void vram_start_addr2_w(offs_t offset, uint8_t data); void cursor_addr_w(offs_t offset, uint8_t data); void cursor_start_w(uint8_t data); void cursor_end_w(uint8_t data); void screen_ctrl_w(uint8_t data); void bell_w(uint8_t data); void kbd_int_w(int state); uint8_t firq_vector_r(); std::unique_ptr m_banked_ram; uint16_t m_vram_start_addr; uint16_t m_vram_end_addr; uint16_t m_vram_start_addr2; uint8_t m_cursor_start; uint8_t m_cursor_end; uint16_t m_cursor_addr; uint8_t m_screen_ctrl; uint8_t m_firq_vector; memory_access<16, 0, 0, ENDIANNESS_BIG>::specific m_program; }; //************************************************************************** // ADDRESS MAPS //************************************************************************** void informer_213_state::mem_map(address_map &map) { map(0x0000, 0x0000).rw("kbd", FUNC(informer_213_kbd_hle_device::read), FUNC(informer_213_kbd_hle_device::write)); map(0x0006, 0x0007).unmapr().w(FUNC(informer_213_state::vram_start_addr_w)); map(0x0008, 0x0009).unmapr().w(FUNC(informer_213_state::vram_end_addr_w)); map(0x000a, 0x000b).unmapr().w(FUNC(informer_213_state::vram_start_addr2_w)); map(0x000d, 0x000d).unmapr().w(FUNC(informer_213_state::cursor_start_w)); map(0x000e, 0x000e).unmapr().w(FUNC(informer_213_state::cursor_end_w)); map(0x000f, 0x0010).unmapr().w(FUNC(informer_213_state::cursor_addr_w)); map(0x0021, 0x0021).w(FUNC(informer_213_state::screen_ctrl_w)); map(0x0040, 0x0043).rw(m_scc, FUNC(scc85c30_device::ab_dc_r), FUNC(scc85c30_device::ab_dc_w)); map(0x0060, 0x0060).w(FUNC(informer_213_state::bell_w)); map(0x0100, 0x03ff).ram().share("nvram0"); // might not be all nvram map(0x0400, 0x07ff).bankrw("banked"); // unknown size, data written 0x540 to 0x749 map(0x0800, 0x5fff).ram(); map(0x6000, 0x6fff).ram().share("vram"); map(0x7000, 0x7fff).ram().share("aram"); map(0x8000, 0xffff).rom().region("maincpu", 0); map(0xfff7, 0xfff7).r(FUNC(informer_213_state::firq_vector_r)); map(0xfff9, 0xfff9).lr8(NAME([this] () { return m_scc->m1_r(); })); // irq vector } //************************************************************************** // INPUT PORT DEFINITIONS //************************************************************************** static INPUT_PORTS_START( informer_213 ) INPUT_PORTS_END //************************************************************************** // VIDEO EMULATION //************************************************************************** uint32_t informer_213_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) { offs_t chargen_base = (m_chargen.bytes() == 0x4000) ? 0x2000 : 0; // line at which vram splits into two windows int split = 24 - ((m_vram_start_addr2 - m_vram_start_addr) / 80); for (int y = 0; y < 26; y++) { uint8_t line_attr = 0; for (int x = 0; x < 80; x++) { uint16_t addr; // vram is split into 3 areas: display window 1, display window 2, status bar if (y >= 24) addr = 0x6000 + (y - 24) * 80 + x; else if (y >= split) addr = m_vram_start_addr + (y - split) * 80 + x; else addr = m_vram_start_addr2 + y * 80 + x; uint8_t code = m_program.read_byte(addr); uint8_t attr = m_program.read_byte(addr+0x1000); //logerror("%02d.%02d %04x %02x %02x\n", x, y, addr, code, attr); if (code == 0xc0 || code == 0xe8) line_attr = attr; // draw 9 lines for (int i = 0; i < 9; i++) { uint8_t data = m_chargen[chargen_base | ((code << 4) + i)]; // conceal if (line_attr & 0x08 || attr & 0x08) data = 0x00; // reverse video if (line_attr & 0x10 || attr & 0x10) data ^= 0xff; // underline (not supported by terminal?) if (line_attr & 0x20 || attr & 0x20) data = +data; // blink (todo: timing) if (line_attr & 0x40 || attr & 0x40) data = m_screen->frame_number() & 0x20 ? 0x00 :data; if (code == 0xc0 || code == 0xe8) data = 0; if (BIT(m_screen_ctrl, 5)) data ^= 0xff; // cursor if (BIT(m_cursor_start, 5) == 1 && addr == m_cursor_addr && y < 24) if (i >= (m_cursor_start & 0x0f) && i < (m_cursor_end & 0x0f)) if (!(BIT(m_screen_ctrl, 4) == 0 && (m_screen->frame_number() & 0x20))) data = 0xff; // 6 pixels of the character bitmap.pix(y * 9 + i, x * 6 + 0) = BIT(data, 7) ? rgb_t::white() : rgb_t::black(); bitmap.pix(y * 9 + i, x * 6 + 1) = BIT(data, 6) ? rgb_t::white() : rgb_t::black(); bitmap.pix(y * 9 + i, x * 6 + 2) = BIT(data, 5) ? rgb_t::white() : rgb_t::black(); bitmap.pix(y * 9 + i, x * 6 + 3) = BIT(data, 4) ? rgb_t::white() : rgb_t::black(); bitmap.pix(y * 9 + i, x * 6 + 4) = BIT(data, 3) ? rgb_t::white() : rgb_t::black(); bitmap.pix(y * 9 + i, x * 6 + 5) = BIT(data, 2) ? rgb_t::white() : rgb_t::black(); } } } return 0; } void informer_213_state::vram_start_addr_w(offs_t offset, uint8_t data) { if (offset) m_vram_start_addr = (m_vram_start_addr & 0xff00) | (data << 0); else m_vram_start_addr = (m_vram_start_addr & 0x00ff) | (data << 8); if (offset) logerror("vram_start_addr_w: %04x\n", m_vram_start_addr); } void informer_213_state::vram_end_addr_w(offs_t offset, uint8_t data) { if (offset) m_vram_end_addr = (m_vram_end_addr & 0xff00) | (data << 0); else m_vram_end_addr = (m_vram_end_addr & 0x00ff) | (data << 8); if (offset) logerror("vram_end_addr_w: %04x\n", m_vram_end_addr); } void informer_213_state::vram_start_addr2_w(offs_t offset, uint8_t data) { if (offset) m_vram_start_addr2 = (m_vram_start_addr2 & 0xff00) | (data << 0); else m_vram_start_addr2 = (m_vram_start_addr2 & 0x00ff) | (data << 8); if (offset) logerror("vram_start_addr2_w: %04x\n", m_vram_start_addr2); } void informer_213_state::cursor_start_w(uint8_t data) { logerror("cursor_start_w: %02x\n", data); // 76------ unknown // --5----- cursor visible // ---4---- unknown // ----3210 cursor starting line, values seen: 0 (block/off), 6 (underline) m_cursor_start = data; } void informer_213_state::cursor_end_w(uint8_t data) { logerror("cursor_end_w: %02x\n", data); // 7654---- unknown // ----3210 cursor ending line, values seen: 9 (block), 8 (underline), 1 (off) m_cursor_end = data; } void informer_213_state::cursor_addr_w(offs_t offset, uint8_t data) { if (offset) m_cursor_addr = (m_cursor_addr & 0xff00) | (data << 0); else m_cursor_addr = (m_cursor_addr & 0x00ff) | (data << 8); if (offset) logerror("cursor_addr_w: %04x\n", m_cursor_addr); } void informer_213_state::screen_ctrl_w(uint8_t data) { logerror("screen_ctrl_w: %02x\n", data); // 76------ unknown // --5----- screen reverse // ---4---- cursor blink/steady // ----3210 unknown m_screen_ctrl = data; } void informer_213_state::vblank_w(int state) { if (state) { // real source if this interrupt is unknown, deactivated for now #if 0 m_firq_vector = 0x10; m_maincpu->set_input_line(M6809_FIRQ_LINE, HOLD_LINE); #endif } } static const gfx_layout char_layout = { 6,9, RGN_FRAC(1,1), 1, { 0 }, { 0, 1, 2, 3, 4, 5 }, { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8 }, 8*16 }; static GFXDECODE_START(chars) GFXDECODE_ENTRY("chargen", 0, char_layout, 0, 1) GFXDECODE_END //************************************************************************** // MACHINE EMULATION //************************************************************************** void informer_213_state::bell_w(uint8_t data) { logerror("bell_w: %02x\n", data); // 7654---- unknown // ----3--- ram bank // -----2-- beeper // ------10 unknown m_beep->set_state(BIT(data, 2)); m_nvram_bank->set_entry(BIT(data, 3)); } void informer_213_state::kbd_int_w(int state) { m_firq_vector = 0x14; m_maincpu->set_input_line(M6809_FIRQ_LINE, HOLD_LINE); } uint8_t informer_213_state::firq_vector_r() { uint8_t tmp = m_firq_vector; m_firq_vector = 0x00; return tmp; } void informer_213_state::machine_start() { m_banked_ram = make_unique_clear(0x800); membank("banked")->configure_entries(0, 2, m_banked_ram.get(), 0x400); m_nvram[1]->set_base(m_banked_ram.get(), 0x800); m_maincpu->space(AS_PROGRAM).specific(m_program); // register for save states save_item(NAME(m_vram_start_addr)); save_item(NAME(m_vram_start_addr2)); save_item(NAME(m_vram_end_addr)); save_item(NAME(m_cursor_addr)); save_item(NAME(m_screen_ctrl)); save_item(NAME(m_firq_vector)); save_item(NAME(m_cursor_start)); save_item(NAME(m_cursor_end)); } void informer_213_state::machine_reset() { m_firq_vector = 0x00; m_vram_start_addr = 0x0084; m_vram_start_addr2 = 0x0084; m_vram_end_addr = 0xffff; m_cursor_start = 0x20; m_cursor_end = 0x09; m_cursor_addr = 0xffff; m_screen_ctrl = 0x18; } //************************************************************************** // MACHINE DEFINTIONS //************************************************************************** void in213_printer_devices(device_slot_interface &device) { device.option_add("printer", SERIAL_PRINTER); } void informer_213_state::informer_213(machine_config &config) { MC6809(config, m_maincpu, 18.432_MHz_XTAL / 4); // unknown clock m_maincpu->set_addrmap(AS_PROGRAM, &informer_213_state::mem_map); NVRAM(config, m_nvram[0], nvram_device::DEFAULT_ALL_0); NVRAM(config, m_nvram[1], nvram_device::DEFAULT_ALL_0); SCC8530N(config, m_scc, 18.432_MHz_XTAL / 5); m_scc->out_txda_callback().set("host", FUNC(rs232_port_device::write_txd)); m_scc->out_dtra_callback().set("host", FUNC(rs232_port_device::write_dtr)); m_scc->out_rtsa_callback().set("host", FUNC(rs232_port_device::write_rts)); m_scc->out_txdb_callback().set("printer", FUNC(rs232_port_device::write_txd)); m_scc->out_int_callback().set_inputline(m_maincpu, M6809_IRQ_LINE); rs232_port_device &rs232_host(RS232_PORT(config, "host", default_rs232_devices, nullptr)); rs232_host.rxd_handler().set(m_scc, FUNC(scc85c30_device::rxa_w)); rs232_host.dcd_handler().set(m_scc, FUNC(scc85c30_device::dcda_w)); rs232_host.cts_handler().set(m_scc, FUNC(scc85c30_device::ctsa_w)); RS232_PORT(config, "printer", in213_printer_devices, nullptr); // video SCREEN(config, m_screen, SCREEN_TYPE_LCD); m_screen->set_color(rgb_t::amber()); m_screen->set_size(480, 234); m_screen->set_visarea_full(); m_screen->set_refresh_hz(60); m_screen->set_vblank_time(ATTOSECONDS_IN_USEC(2500)); // not accurate // m_screen->set_raw(18.432_MHz_XTAL, 0, 0, 0, 0, 0, 0); m_screen->set_screen_update(FUNC(informer_213_state::screen_update)); m_screen->screen_vblank().set(FUNC(informer_213_state::vblank_w)); PALETTE(config, m_palette, palette_device::MONOCHROME); GFXDECODE(config, "gfxdecode", m_palette, chars); // sound SPEAKER(config, "mono").front_center(); BEEP(config, "beep", 500).add_route(ALL_OUTPUTS, "mono", 0.50); // frequency unknown informer_213_kbd_hle_device &kbd(INFORMER_213_KBD_HLE(config, "kbd")); kbd.int_handler().set(FUNC(informer_213_state::kbd_int_w)); } //************************************************************************** // ROM DEFINITIONS //************************************************************************** ROM_START( in213 ) ROM_REGION(0x8000, "maincpu", 0) ROM_DEFAULT_BIOS("26") ROM_SYSTEM_BIOS(0, "21", "v2.1") // 79687-101 213 SNA 201C CK=1C22 V2.1 (checksum matches) ROMX_LOAD("79687-101.bin", 0x0000, 0x8000, CRC(1ff023f3) SHA1(cbb027769d7744072045e60b020826f4f4bfe1b6), ROM_BIOS(0)) ROM_SYSTEM_BIOS(1, "26", "v2.6") // 79687-305 PTF02 SNA V2.6 CK=24EE (checksum matches) ROMX_LOAD("79687-305.bin", 0x0000, 0x8000, CRC(0638c6d6) SHA1(1906f835f255d595c5743b453614ba21acb5acae), ROM_BIOS(1)) ROM_REGION(0x2000, "chargen", 0) // 79688-003 ICT 213/CG. CK=C4E0 (checksum matches) // 79688-003 ICT 213/374 CK = C4E0 (checksum matches) ROM_LOAD("79688-003.bin", 0x0000, 0x2000, CRC(75e0da94) SHA1(c10c71fcf980a5f868a85bc264661183fa69fa72)) ROM_END ROM_START( in213ae ) ROM_REGION(0x8000, "maincpu", 0) ROM_DEFAULT_BIOS("17") ROM_SYSTEM_BIOS(0, "16", "v1.6") // 79750-304-213AE_V1.6_CK-B1B8 ROMX_LOAD("79750-304.bin", 0x0000, 0x8000, CRC(82ffe69e) SHA1(3803100aeb8f5e484bc9f4c533ef4f25223c9023), ROM_BIOS(0)) ROM_SYSTEM_BIOS(1, "17", "v1.7") // 79750-305 213 AE V.32 CK=9D06 (checksum matches) ROMX_LOAD("79750-305.bin", 0x0000, 0x8000, CRC(322edc85) SHA1(7e8d95ef8550d133163ffc89dd75ed80883dee0c), ROM_BIOS(1)) ROM_REGION(0x4000, "chargen", 0) // 79747-002 V.32 ME C.G. V3.1 CK=D68C (checksum matches) ROM_LOAD("79747-002.bin", 0x0000, 0x4000, CRC(7425327f) SHA1(e3e67305b3b8936683724d1347a451fffe96bf0e)) ROM_END //************************************************************************** // SYSTEM DRIVERS //************************************************************************** // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS COMP( 1990, in213 , 0, 0, informer_213, informer_213, informer_213_state, empty_init, "Informer", "Informer 213", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE ) COMP( 1992, in213ae, 0, 0, informer_213, informer_213, informer_213_state, empty_init, "Informer", "Informer 213 AE", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )