// license:BSD-3-Clause // copyright-holders:R. Belmont, M. Capdeville /*************************************************************************** tk2000.cpp - Microdigital TK2000 Driver by R. Belmont This system is only vaguely Apple II compatible. The keyboard works entirely differently, which is a big deal. TODO: emulate expansion connector (not wholly Apple II compatible) $C05A - banks RAM from c100-ffff $C05B - banks ROM from c100-ffff Added Multitech MPF-II support ( another not so apple2 compatible ) ************************************************************************/ #include "emu.h" #include "video/apple2.h" #include "cpu/m6502/m6502.h" #include "bus/centronics/ctronics.h" #include "imagedev/cassette.h" #include "machine/74259.h" #include "machine/bankdev.h" #include "machine/ram.h" #include "machine/timer.h" #include "sound/spkrdev.h" #include "emupal.h" #include "screen.h" #include "speaker.h" #include "formats/ap2_dsk.h" #define A2_CPU_TAG "maincpu" #define A2_BUS_TAG "a2bus" #define A2_SPEAKER_TAG "speaker" #define A2_CASSETTE_TAG "tape" #define A2_UPPERBANK_TAG "inhbank" #define A2_VIDEO_TAG "a2video" class tk2000_state : public driver_device { public: tk2000_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_maincpu(*this, A2_CPU_TAG), m_ram(*this, RAM_TAG), m_screen(*this, "screen"), m_video(*this, A2_VIDEO_TAG), m_row(*this, "ROW%u", 0U), m_kbspecial(*this, "keyb_special"), m_sysconfig(*this, "a2_config"), m_speaker(*this, A2_SPEAKER_TAG), m_cassette(*this, A2_CASSETTE_TAG), m_upperbank(*this, A2_UPPERBANK_TAG), m_softlatch(*this, "softlatch"), m_printer(*this, "printer") { } void tk2000(machine_config &config); protected: virtual void machine_start() override; virtual void machine_reset() override; private: required_device m_maincpu; required_device m_ram; required_device m_screen; required_device m_video; required_ioport_array<8> m_row; required_ioport m_kbspecial; required_ioport m_sysconfig; required_device m_speaker; required_device m_cassette; required_device m_upperbank; required_device m_softlatch; required_device m_printer; int m_speaker_state; int m_cassette_state; uint8_t m_kbout; uint8_t *m_ram_ptr; int m_ram_size; bool m_printer_busy; bool m_ctrl_key; TIMER_DEVICE_CALLBACK_MEMBER(apple2_interrupt); uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); uint8_t ram_r(offs_t offset); void ram_w(offs_t offset, uint8_t data); DECLARE_WRITE_LINE_MEMBER(printer_busy_w); void kbout_w(uint8_t data); uint8_t kbin_r(); uint8_t casout_r(); void casout_w(uint8_t data); uint8_t snd_r(); void snd_w(uint8_t data); uint8_t switches_r(offs_t offset); uint8_t cassette_r(); DECLARE_WRITE_LINE_MEMBER(color_w); DECLARE_WRITE_LINE_MEMBER(motor_a_w); DECLARE_WRITE_LINE_MEMBER(motor_b_w); DECLARE_WRITE_LINE_MEMBER(rom_ram_w); DECLARE_WRITE_LINE_MEMBER(ctrl_key_w); uint8_t c080_r(offs_t offset); void c080_w(offs_t offset, uint8_t data); uint8_t c100_r(offs_t offset); void c100_w(offs_t offset, uint8_t data); void apple2_map(address_map &map); void inhbank_map(address_map &map); uint8_t read_floatingbus(); }; /*************************************************************************** START/RESET ***************************************************************************/ void tk2000_state::machine_start() { m_ram_ptr = m_ram->pointer(); m_ram_size = m_ram->size(); m_speaker_state = 0; m_speaker->level_w(m_speaker_state); m_cassette_state = 0; m_cassette->output(-1.0f); m_printer_busy = false; m_ctrl_key = false; // setup save states save_item(NAME(m_speaker_state)); save_item(NAME(m_cassette_state)); save_item(NAME(m_kbout)); save_item(NAME(m_printer_busy)); save_item(NAME(m_ctrl_key)); // setup video pointers m_video->m_ram_ptr = m_ram_ptr; m_video->m_aux_ptr = m_ram_ptr; m_video->m_char_ptr = nullptr; m_video->m_char_size = 0; } void tk2000_state::machine_reset() { m_kbout = 0; } /*************************************************************************** VIDEO ***************************************************************************/ TIMER_DEVICE_CALLBACK_MEMBER(tk2000_state::apple2_interrupt) { int scanline = param; if((scanline % 8) == 0) m_screen->update_partial(m_screen->vpos()); // update the video system's shadow copy of the system config at the end of the frame if (scanline == 192) { m_video->m_sysconfig = m_sysconfig->read(); } } uint32_t tk2000_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { m_video->hgr_update(screen, bitmap, cliprect, 0, 191); return 0; } /*************************************************************************** I/O ***************************************************************************/ WRITE_LINE_MEMBER(tk2000_state::printer_busy_w) { m_printer_busy = state; } void tk2000_state::kbout_w(uint8_t data) { // write row mask for keyboard scan m_kbout = data; m_printer->write_data0(BIT(data, 0)); m_printer->write_data1(BIT(data, 1)); m_printer->write_data2(BIT(data, 2)); m_printer->write_data3(BIT(data, 3)); m_printer->write_data4(BIT(data, 4)); m_printer->write_data5(BIT(data, 5)); m_printer->write_data6(BIT(data, 6)); m_printer->write_data7(BIT(data, 7)); } uint8_t tk2000_state::kbin_r() { uint8_t kbin = 0; for (int i = 0; i < 8; i++) if (BIT(m_kbout, i)) kbin |= m_row[i]->read(); if (m_ctrl_key) kbin |= m_kbspecial->read(); return kbin | (m_printer_busy ? 0x40 : 0); } uint8_t tk2000_state::casout_r() { if (!machine().side_effects_disabled()) casout_w(0); return read_floatingbus(); } void tk2000_state::casout_w(uint8_t data) { m_cassette_state ^= 1; m_cassette->output(m_cassette_state ? 1.0f : -1.0f); } uint8_t tk2000_state::snd_r() { if (!machine().side_effects_disabled()) snd_w(0); return read_floatingbus(); } void tk2000_state::snd_w(uint8_t data) { m_speaker_state ^= 1; m_speaker->level_w(m_speaker_state); } uint8_t tk2000_state::switches_r(offs_t offset) { if (!machine().side_effects_disabled()) m_softlatch->write_bit((offset & 0x0e) >> 1, offset & 0x01); return read_floatingbus(); } uint8_t tk2000_state::cassette_r() { return (m_cassette->input() > 0.0 ? 0x80 : 0) | (read_floatingbus() & 0x7f); } WRITE_LINE_MEMBER(tk2000_state::color_w) { // 0 = color, 1 = black/white } WRITE_LINE_MEMBER(tk2000_state::motor_a_w) { } WRITE_LINE_MEMBER(tk2000_state::motor_b_w) { } WRITE_LINE_MEMBER(tk2000_state::rom_ram_w) { // 0 = ROM, 1 = RAM m_upperbank->set_bank(state); } WRITE_LINE_MEMBER(tk2000_state::ctrl_key_w) { m_ctrl_key = state; } uint8_t tk2000_state::c080_r(offs_t offset) { return read_floatingbus(); } void tk2000_state::c080_w(offs_t offset, uint8_t data) { } uint8_t tk2000_state::c100_r(offs_t offset) { return m_ram_ptr[offset + 0xc100]; } void tk2000_state::c100_w(offs_t offset, uint8_t data) { m_ram_ptr[offset + 0xc100] = data; } // floating bus code from old machine/apple2: needs to be reworked based on real beam position to enable e.g. Bob Bishop's screen splitter uint8_t tk2000_state::read_floatingbus() { enum { // scanner types kScannerNone = 0, kScannerApple2, kScannerApple2e, // scanner constants kHBurstClock = 53, // clock when Color Burst starts kHBurstClocks = 4, // clocks per Color Burst duration kHClock0State = 0x18, // H[543210] = 011000 kHClocks = 65, // clocks per horizontal scan (including HBL) kHPEClock = 40, // clock when HPE (horizontal preset enable) goes low kHPresetClock = 41, // clock when H state presets kHSyncClock = 49, // clock when HSync starts kHSyncClocks = 4, // clocks per HSync duration kNTSCScanLines = 262, // total scan lines including VBL (NTSC) kNTSCVSyncLine = 224, // line when VSync starts (NTSC) kPALScanLines = 312, // total scan lines including VBL (PAL) kPALVSyncLine = 264, // line when VSync starts (PAL) kVLine0State = 0x100, // V[543210CBA] = 100000000 kVPresetLine = 256, // line when V state presets kVSyncLines = 4, // lines per VSync duration kClocksPerVSync = kHClocks * kNTSCScanLines // FIX: NTSC only? }; // vars // int i, Hires, Mixed, Page2, _80Store, ScanLines, /* VSyncLine, ScanCycles,*/ h_clock, h_state, h_0, h_1, h_2, h_3, h_4, h_5, v_line, v_state, v_A, v_B, v_C, v_0, v_1, v_2, v_3, v_4, /* v_5, */ _hires, addend0, addend1, addend2, sum, address; // video scanner data // i = m_maincpu->total_cycles() % kClocksPerVSync; // cycles into this VSync // machine state switches // Hires = 1; //m_video->m_hires ? 1 : 0; Mixed = 0; //m_video->m_mix ? 1 : 0; Page2 = m_video->m_page2 ? 1 : 0; _80Store = 0; // calculate video parameters according to display standard // ScanLines = 1 ? kNTSCScanLines : kPALScanLines; // FIX: NTSC only? // VSyncLine = 1 ? kNTSCVSyncLine : kPALVSyncLine; // FIX: NTSC only? // ScanCycles = ScanLines * kHClocks; // calculate horizontal scanning state // h_clock = (i + kHPEClock) % kHClocks; // which horizontal scanning clock h_state = kHClock0State + h_clock; // H state bits if (h_clock >= kHPresetClock) // check for horizontal preset { h_state -= 1; // correct for state preset (two 0 states) } h_0 = (h_state >> 0) & 1; // get horizontal state bits h_1 = (h_state >> 1) & 1; h_2 = (h_state >> 2) & 1; h_3 = (h_state >> 3) & 1; h_4 = (h_state >> 4) & 1; h_5 = (h_state >> 5) & 1; // calculate vertical scanning state // v_line = i / kHClocks; // which vertical scanning line v_state = kVLine0State + v_line; // V state bits if ((v_line >= kVPresetLine)) // check for previous vertical state preset { v_state -= ScanLines; // compensate for preset } v_A = (v_state >> 0) & 1; // get vertical state bits v_B = (v_state >> 1) & 1; v_C = (v_state >> 2) & 1; v_0 = (v_state >> 3) & 1; v_1 = (v_state >> 4) & 1; v_2 = (v_state >> 5) & 1; v_3 = (v_state >> 6) & 1; v_4 = (v_state >> 7) & 1; //v_5 = (v_state >> 8) & 1; // calculate scanning memory address // _hires = Hires; if (Hires && Mixed && (v_4 & v_2)) { _hires = 0; // (address is in text memory) } addend0 = 0x68; // 1 1 0 1 addend1 = (h_5 << 5) | (h_4 << 4) | (h_3 << 3); addend2 = (v_4 << 6) | (v_3 << 5) | (v_4 << 4) | (v_3 << 3); sum = (addend0 + addend1 + addend2) & (0x0F << 3); address = 0; address |= h_0 << 0; // a0 address |= h_1 << 1; // a1 address |= h_2 << 2; // a2 address |= sum; // a3 - aa6 address |= v_0 << 7; // a7 address |= v_1 << 8; // a8 address |= v_2 << 9; // a9 address |= ((_hires) ? v_A : (1 ^ (Page2 & (1 ^ _80Store)))) << 10; // a10 address |= ((_hires) ? v_B : (Page2 & (1 ^ _80Store))) << 11; // a11 if (_hires) // hires? { // Y: insert hires only address bits // address |= v_C << 12; // a12 address |= (1 ^ (Page2 & (1 ^ _80Store))) << 13; // a13 address |= (Page2 & (1 ^ _80Store)) << 14; // a14 } else { // N: text, so no higher address bits unless Apple ][, not Apple //e // if ((1) && // Apple ][? // FIX: check for Apple ][? (FB is most useful in old games) (kHPEClock <= h_clock) && // Y: HBL? (h_clock <= (kHClocks - 1))) { address |= 1 << 12; // Y: a12 (add $1000 to address!) } } return m_ram_ptr[address % m_ram_size]; // FIX: this seems to work, but is it right!? } /*************************************************************************** ADDRESS MAP ***************************************************************************/ uint8_t tk2000_state::ram_r(offs_t offset) { if (offset < m_ram_size) { return m_ram_ptr[offset]; } return 0xff; } void tk2000_state::ram_w(offs_t offset, uint8_t data) { if (offset < m_ram_size) { m_ram_ptr[offset] = data; } } void tk2000_state::apple2_map(address_map &map) { map(0x0000, 0xbfff).rw(FUNC(tk2000_state::ram_r), FUNC(tk2000_state::ram_w)); map(0xc000, 0xc000).w(FUNC(tk2000_state::kbout_w)).nopr(); map(0xc010, 0xc010).r(FUNC(tk2000_state::kbin_r)); map(0xc020, 0xc020).rw(FUNC(tk2000_state::casout_r), FUNC(tk2000_state::casout_w)); map(0xc030, 0xc030).rw(FUNC(tk2000_state::snd_r), FUNC(tk2000_state::snd_w)); map(0xc050, 0xc05f).r(FUNC(tk2000_state::switches_r)).w(m_softlatch, FUNC(addressable_latch_device::write_a0)); map(0xc060, 0xc060).mirror(8).r(FUNC(tk2000_state::cassette_r)); map(0xc080, 0xc0ff).rw(FUNC(tk2000_state::c080_r), FUNC(tk2000_state::c080_w)); map(0xc100, 0xffff).m(m_upperbank, FUNC(address_map_bank_device::amap8)); } void tk2000_state::inhbank_map(address_map &map) { map(0x0000, 0x3eff).rom().region("maincpu", 0x100); map(0x4000, 0x7eff).rw(FUNC(tk2000_state::c100_r), FUNC(tk2000_state::c100_w)); } /*************************************************************************** INPUT PORTS ***************************************************************************/ /* TK2000 matrix: 0 1 2 3 4 5 6 7 0SHIF B V C X Z 1 G F D S A 2 SPC T R E W Q 3 LFT 5 4 3 2 1 4 RGT 6 7 8 9 0 5 DWN Y U I O P 6 UP H J K L : 7 RTN N M , . ? write row mask 1/2/4/8/10/20/40/80 to $C000 read column at $C010 If $C05F is written, the Ctrl key is read in bit 0 of $C010 immediately afterwards. */ static INPUT_PORTS_START( tk2000 ) PORT_START("ROW0") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('B') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('V') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('C') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('X') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('Z') PORT_START("ROW1") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_UNUSED) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('G') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('F') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('D') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('S') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('A') PORT_START("ROW2") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('T') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('R') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('E') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('W') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('Q') PORT_START("ROW3") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(UTF8_LEFT) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT)) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('"') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') PORT_START("ROW4") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(UTF8_RIGHT) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR('*') PORT_START("ROW5") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(UTF8_DOWN) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(10) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('Y') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('U') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('I') PORT_CHAR('-') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('O') PORT_CHAR('=') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('P') PORT_CHAR('+') PORT_START("ROW6") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(UTF8_UP) PORT_CODE(KEYCODE_UP) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('H') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('J') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('K') PORT_CHAR('^') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('L') PORT_CHAR('@') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(':') PORT_CHAR(';') PORT_START("ROW7") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Return") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('N') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('M') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('?') PORT_CHAR('/') PORT_START("keyb_special") PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Control") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_SHIFT_2) PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_UNUSED) PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_UNUSED) PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_UNUSED) PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_UNUSED) PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_UNUSED) PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_UNUSED) PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNUSED) PORT_START("a2_config") PORT_CONFNAME(0x03, 0x00, "Composite monitor type") PORT_CONFSETTING(0x00, "Color") PORT_CONFSETTING(0x01, "B&W") PORT_CONFSETTING(0x02, "Green") PORT_CONFSETTING(0x03, "Amber") INPUT_PORTS_END void tk2000_state::tk2000(machine_config &config) { /* basic machine hardware */ M6502(config, m_maincpu, 1021800); /* close to actual CPU frequency of 1.020484 MHz */ m_maincpu->set_addrmap(AS_PROGRAM, &tk2000_state::apple2_map); TIMER(config, "scantimer").configure_scanline(FUNC(tk2000_state::apple2_interrupt), "screen", 0, 1); config.set_maximum_quantum(attotime::from_hz(60)); APPLE2_VIDEO(config, m_video, XTAL(14'318'181)).set_screen(m_screen); SCREEN(config, m_screen, SCREEN_TYPE_RASTER); m_screen->set_refresh_hz(60); m_screen->set_vblank_time(ATTOSECONDS_IN_USEC(2500)); /* not accurate */ m_screen->set_size(280*2, 262); m_screen->set_visarea(0, (280*2)-1,0,192-1); m_screen->set_screen_update(FUNC(tk2000_state::screen_update)); m_screen->set_palette(m_video); /* sound hardware */ SPEAKER(config, "mono").front_center(); SPEAKER_SOUND(config, m_speaker).add_route(ALL_OUTPUTS, "mono", 1.00); /* /INH banking */ ADDRESS_MAP_BANK(config, A2_UPPERBANK_TAG).set_map(&tk2000_state::inhbank_map).set_options(ENDIANNESS_LITTLE, 8, 32, 0x4000); LS259(config, m_softlatch); // U36 m_softlatch->q_out_cb<0>().set(FUNC(tk2000_state::color_w)); m_softlatch->q_out_cb<1>().set(FUNC(tk2000_state::motor_a_w)); m_softlatch->q_out_cb<2>().set(m_video, FUNC(a2_video_device::scr_w)); m_softlatch->q_out_cb<3>().set(FUNC(tk2000_state::motor_b_w)); m_softlatch->q_out_cb<4>().set(m_printer, FUNC(centronics_device::write_strobe)); m_softlatch->q_out_cb<5>().set(FUNC(tk2000_state::rom_ram_w)); m_softlatch->q_out_cb<7>().set(FUNC(tk2000_state::ctrl_key_w)); RAM(config, RAM_TAG).set_default_size("64K"); CASSETTE(config, m_cassette); m_cassette->set_default_state(CASSETTE_STOPPED); m_cassette->add_route(ALL_OUTPUTS, "mono", 0.05); CENTRONICS(config, m_printer, centronics_devices, nullptr); m_printer->busy_handler().set(FUNC(tk2000_state::printer_busy_w)); } /*************************************************************************** Game driver(s) ***************************************************************************/ ROM_START(tk2000) ROM_REGION(0x4000,"maincpu",0) ROM_LOAD( "tk2000.rom", 0x000000, 0x004000, CRC(dfdbacc3) SHA1(bb37844c31616046630868a4399ee3d55d6df277) ) ROM_END ROM_START(mpf2) ROM_REGION(0x4000,"maincpu",0) ROM_LOAD( "mpf_ii.rom", 0x000000, 0x004000, CRC(8780189f) SHA1(92378b0db561632b58a9b36a85f8fb00796198bb) ) ROM_END /* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME */ COMP( 1984, tk2000, 0, 0, tk2000, tk2000, tk2000_state, empty_init, "Microdigital", "TK2000 Color Computer", MACHINE_NOT_WORKING ) COMP( 1982, mpf2, tk2000, 0, tk2000, tk2000, tk2000_state, empty_init, "Multitech", "Microprofessor II", MACHINE_NOT_WORKING )