// license:GPL-2.0+ // copyright-holders:Raphael Nabet, Robbbert /* Experimental tm990/189 ("University Module") driver. The tm990/189 is a simple board built around a tms9980 at 2.0 MHz. The board features: * a calculator-like alphanumeric keyboard, a 10-digit 8-segment display, a sound buzzer and 4 status LEDs * a 4kb ROM socket (0x3000-0x3fff), and a 2kb ROM socket (0x0800-0x0fff) * 1kb of RAM expandable to 2kb (0x0000-0x03ff and 0x0400-0x07ff) * a tms9901 controlling a custom parallel I/O port (available for expansion) * an optional on-board serial interface (either TTY or RS232): TI ROMs support a terminal connected to this port * an optional tape interface * an optional bus extension port for adding additional custom devices (TI sold a video controller expansion built around a tms9918, which was supported by University Basic) One tms9901 is set up so that it handles tms9980 interrupts. The other tms9901, the tms9902, and extension cards can trigger interrupts on the interrupt-handling tms9901. TI sold two ROM sets for this machine: a monitor and assembler ("UNIBUG", packaged as one 4kb EPROM) and a Basic interpreter ("University BASIC", packaged as a 4kb and a 2kb EPROM). Users could burn and install custom ROM sets, too. This board was sold to universities to learn either assembly language or BASIC programming. A few hobbyists may have bought one of these, too. This board can actually be used as a development kit for the tms9980, but it was not supported as such (there was no EPROM programmer or mass storage system for the tm990/189, though you could definitively design your own and attach them to the extension port). - Raphael Nabet 2003 Bug - The input buffer of character segments isn't fully cleared. If you press Shift, then Z enough times, garbage appears. This is because the boot process should have set 18C-1CB to FF, but only sets up to 1B3. Need a dump of the UNIBUG rom. Demo programs for the 990189v: You can get impressive colour displays (with sprites) from the 4 included demos. Press the Enter key after each instruction, and wait for the READY prompt before proceeding to the next. NEW LOADx (where x = 0,1,2,3) RUN University BASIC fully supports the tms9918 videocard option. For example, enter COLOR x (where x = 1 to 15), to get a coloured background. - Robbbert 2011 ******************************************************************************************/ #include "emu.h" #include "cpu/tms9900/tms9980a.h" #include "imagedev/cassette.h" #include "machine/timer.h" #include "machine/tms9901.h" #include "machine/tms9902.h" #include "sound/spkrdev.h" #include "sound/wave.h" #include "video/tms9928a.h" #include "speaker.h" #include "tm990189.lh" #include "tm990189v.lh" #define TMS9901_0_TAG "tms9901_usr" #define TMS9901_1_TAG "tms9901_sys" class tm990189_state : public driver_device { public: tm990189_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_tms9980a(*this, "maincpu") , m_speaker(*this, "speaker") , m_cass(*this, "cassette") , m_tms9918(*this, "tms9918") , m_tms9901_usr(*this, TMS9901_0_TAG) , m_tms9901_sys(*this, TMS9901_1_TAG) , m_digits(*this, "digit%u", 0U) { } required_device m_tms9980a; required_device m_speaker; required_device m_cass; optional_device m_tms9918; DECLARE_READ8_MEMBER(video_vdp_r); DECLARE_WRITE8_MEMBER(video_vdp_w); DECLARE_READ8_MEMBER(video_joy_r); DECLARE_WRITE8_MEMBER(video_joy_w); int m_load_state; int m_digitsel; int m_segment; emu_timer *m_displayena_timer; uint8_t m_segment_state[10]; uint8_t m_old_segment_state[10]; uint8_t m_LED_state; emu_timer *m_joy1x_timer; emu_timer *m_joy1y_timer; emu_timer *m_joy2x_timer; emu_timer *m_joy2y_timer; device_image_interface *m_rs232_fp; uint8_t m_rs232_rts; emu_timer *m_rs232_input_timer; uint8_t m_bogus_read_save; DECLARE_WRITE8_MEMBER( external_operation ); DECLARE_INPUT_CHANGED_MEMBER( load_interrupt ); DECLARE_WRITE_LINE_MEMBER(usr9901_led0_w); DECLARE_WRITE_LINE_MEMBER(usr9901_led1_w); DECLARE_WRITE_LINE_MEMBER(usr9901_led2_w); DECLARE_WRITE_LINE_MEMBER(usr9901_led3_w); DECLARE_WRITE8_MEMBER(usr9901_interrupt_callback); DECLARE_WRITE8_MEMBER(sys9901_interrupt_callback); DECLARE_READ8_MEMBER(sys9901_r); DECLARE_WRITE_LINE_MEMBER(sys9901_digitsel0_w); DECLARE_WRITE_LINE_MEMBER(sys9901_digitsel1_w); DECLARE_WRITE_LINE_MEMBER(sys9901_digitsel2_w); DECLARE_WRITE_LINE_MEMBER(sys9901_digitsel3_w); DECLARE_WRITE_LINE_MEMBER(sys9901_segment0_w); DECLARE_WRITE_LINE_MEMBER(sys9901_segment1_w); DECLARE_WRITE_LINE_MEMBER(sys9901_segment2_w); DECLARE_WRITE_LINE_MEMBER(sys9901_segment3_w); DECLARE_WRITE_LINE_MEMBER(sys9901_segment4_w); DECLARE_WRITE_LINE_MEMBER(sys9901_segment5_w); DECLARE_WRITE_LINE_MEMBER(sys9901_segment6_w); DECLARE_WRITE_LINE_MEMBER(sys9901_segment7_w); DECLARE_WRITE_LINE_MEMBER(sys9901_dsplytrgr_w); DECLARE_WRITE_LINE_MEMBER(sys9901_shiftlight_w); DECLARE_WRITE_LINE_MEMBER(sys9901_spkrdrive_w); DECLARE_WRITE_LINE_MEMBER(sys9901_tapewdata_w); DECLARE_WRITE8_MEMBER( xmit_callback ); DECLARE_MACHINE_START(tm990_189); DECLARE_MACHINE_RESET(tm990_189); DECLARE_MACHINE_START(tm990_189_v); DECLARE_MACHINE_RESET(tm990_189_v); TIMER_DEVICE_CALLBACK_MEMBER(display_callback); TIMER_CALLBACK_MEMBER(clear_load); void hold_load(); void tm990_189_v(machine_config &config); void tm990_189(machine_config &config); void tm990_189_cru_map(address_map &map); void tm990_189_memmap(address_map &map); void tm990_189_v_memmap(address_map &map); private: void draw_digit(void); void led_set(int number, bool state); void segment_set(int offset, bool state); void digitsel(int offset, bool state); required_device m_tms9901_usr; required_device m_tms9901_sys; output_finder<10> m_digits; }; #define displayena_duration attotime::from_usec(4500) /* Can anyone confirm this? 74LS123 connected to C=0.1uF and R=100kOhm */ MACHINE_RESET_MEMBER(tm990189_state,tm990_189) { m_tms9980a->set_ready(ASSERT_LINE); m_tms9980a->set_hold(CLEAR_LINE); hold_load(); } MACHINE_START_MEMBER(tm990189_state,tm990_189) { m_digits.resolve(); m_displayena_timer = machine().scheduler().timer_alloc(timer_expired_delegate()); } MACHINE_START_MEMBER(tm990189_state,tm990_189_v) { m_digits.resolve(); m_displayena_timer = machine().scheduler().timer_alloc(timer_expired_delegate()); m_joy1x_timer = machine().scheduler().timer_alloc(timer_expired_delegate()); m_joy1y_timer = machine().scheduler().timer_alloc(timer_expired_delegate()); m_joy2x_timer = machine().scheduler().timer_alloc(timer_expired_delegate()); m_joy2y_timer = machine().scheduler().timer_alloc(timer_expired_delegate()); } MACHINE_RESET_MEMBER(tm990189_state,tm990_189_v) { m_tms9980a->set_ready(ASSERT_LINE); m_tms9980a->set_hold(CLEAR_LINE); hold_load(); } /* hold and debounce load line (emulation is inaccurate) */ TIMER_CALLBACK_MEMBER(tm990189_state::clear_load) { m_load_state = false; m_tms9980a->set_input_line(INT_9980A_LOAD, CLEAR_LINE); } void tm990189_state::hold_load() { m_load_state = true; m_tms9980a->set_input_line(INT_9980A_LOAD, ASSERT_LINE); machine().scheduler().timer_set(attotime::from_msec(100), timer_expired_delegate(FUNC(tm990189_state::clear_load),this)); } /* LOAD interrupt switch */ INPUT_CHANGED_MEMBER( tm990189_state::load_interrupt ) { // When depressed, fire LOAD (neg logic) if (newval==CLEAR_LINE) hold_load(); } /* tm990_189 video emulation. Has an integrated 10 digit 8-segment display. Supports EIA and TTY terminals, and an optional 9918 controller. */ void tm990189_state::draw_digit() { m_segment_state[m_digitsel] |= ~m_segment; } TIMER_DEVICE_CALLBACK_MEMBER(tm990189_state::display_callback) { uint8_t i; char ledname[8]; // since the segment data is cleared after being used, the old_segment is there // in case the segment data hasn't been refreshed yet. for (i = 0; i < 10; i++) { m_old_segment_state[i] |= m_segment_state[i]; m_digits[i] = m_old_segment_state[i]; m_old_segment_state[i] = m_segment_state[i]; m_segment_state[i] = 0; } for (i = 0; i < 7; i++) { sprintf(ledname,"led%d",i); output().set_value(ledname, !BIT(m_LED_state, i)); } } /* tms9901 code */ WRITE8_MEMBER( tm990189_state::usr9901_interrupt_callback ) { // Triggered by internal timer (set by ROM to 1.6 ms cycle) on level 3 // or by keyboard interrupt (level 6) if (!m_load_state) { m_tms9980a->set_input_line(offset & 7, ASSERT_LINE); } } void tm990189_state::led_set(int offset, bool state) { if (state) m_LED_state |= (1 << offset); else m_LED_state &= ~(1 << offset); } WRITE_LINE_MEMBER( tm990189_state::usr9901_led0_w ) { led_set(0, state); } WRITE_LINE_MEMBER( tm990189_state::usr9901_led1_w ) { led_set(1, state); } WRITE_LINE_MEMBER( tm990189_state::usr9901_led2_w ) { led_set(2, state); } WRITE_LINE_MEMBER( tm990189_state::usr9901_led3_w ) { led_set(3, state); } WRITE8_MEMBER( tm990189_state::sys9901_interrupt_callback ) { // machine().device("tms9901_0")->set_single_int(5, (data!=0)? ASSERT_LINE:CLEAR_LINE); // TODO: Check this m_tms9901_usr->set_single_int(5, (data!=0)? ASSERT_LINE:CLEAR_LINE); } READ8_MEMBER( tm990189_state::sys9901_r ) { uint8_t data = 0; if (offset == tms9901_device::CB_INT7) { static const char *const keynames[] = { "LINE0", "LINE1", "LINE2", "LINE3", "LINE4", "LINE5", "LINE6", "LINE7", "LINE8" }; /* keyboard read */ if (m_digitsel < 9) data |= ioport(keynames[m_digitsel])->read() << 1; /* tape input */ if (m_cass->input() > 0.0) data |= 0x40; } return data; } void tm990189_state::digitsel(int offset, bool state) { if (state) m_digitsel |= 1 << offset; else m_digitsel &= ~ (1 << offset); } WRITE_LINE_MEMBER( tm990189_state::sys9901_digitsel0_w ) { digitsel(0, state); } WRITE_LINE_MEMBER( tm990189_state::sys9901_digitsel1_w ) { digitsel(1, state); } WRITE_LINE_MEMBER( tm990189_state::sys9901_digitsel2_w ) { digitsel(2, state); } WRITE_LINE_MEMBER( tm990189_state::sys9901_digitsel3_w ) { digitsel(3, state); } void tm990189_state::segment_set(int offset, bool state) { if (state) m_segment |= 1 << offset; else { m_segment &= ~ (1 << offset); if ((m_displayena_timer->remaining() > attotime::zero) && (m_digitsel < 10)) draw_digit(); } } WRITE_LINE_MEMBER( tm990189_state::sys9901_segment0_w ) { segment_set(0, state); } WRITE_LINE_MEMBER( tm990189_state::sys9901_segment1_w ) { segment_set(1, state); } WRITE_LINE_MEMBER( tm990189_state::sys9901_segment2_w ) { segment_set(2, state); } WRITE_LINE_MEMBER( tm990189_state::sys9901_segment3_w ) { segment_set(3, state); } WRITE_LINE_MEMBER( tm990189_state::sys9901_segment4_w ) { segment_set(4, state); } WRITE_LINE_MEMBER( tm990189_state::sys9901_segment5_w ) { segment_set(5, state); } WRITE_LINE_MEMBER( tm990189_state::sys9901_segment6_w ) { segment_set(6, state); } WRITE_LINE_MEMBER( tm990189_state::sys9901_segment7_w ) { segment_set(7, state); } WRITE_LINE_MEMBER( tm990189_state::sys9901_dsplytrgr_w ) { if ((!state) && (m_digitsel < 10)) { m_displayena_timer->reset(displayena_duration); draw_digit(); } } WRITE_LINE_MEMBER( tm990189_state::sys9901_shiftlight_w ) { if (state) m_LED_state |= 0x10; else m_LED_state &= ~0x10; } WRITE_LINE_MEMBER( tm990189_state::sys9901_spkrdrive_w ) { m_speaker->level_w(state); } WRITE_LINE_MEMBER( tm990189_state::sys9901_tapewdata_w ) { m_cass->output(state ? +1.0 : -1.0); } class tm990_189_rs232_image_device : public device_t, public device_image_interface { public: // construction/destruction tm990_189_rs232_image_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); // image-level overrides virtual iodevice_t image_type() const override { return IO_SERIAL; } virtual bool is_readable() const override { return 1; } virtual bool is_writeable() const override { return 1; } virtual bool is_creatable() const override { return 1; } virtual bool must_be_loaded() const override { return 0; } virtual bool is_reset_on_load() const override { return 0; } virtual const char *file_extensions() const override { return ""; } virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override; virtual image_init_result call_load() override; virtual void call_unload() override; protected: // device-level overrides virtual void device_start() override; }; DEFINE_DEVICE_TYPE(TM990_189_RS232, tm990_189_rs232_image_device, "tm990_189_rs232_image", "TM990/189 RS232 port") tm990_189_rs232_image_device::tm990_189_rs232_image_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, TM990_189_RS232, tag, owner, clock) , device_image_interface(mconfig, *this) { } void tm990_189_rs232_image_device::device_start() { } void tm990_189_rs232_image_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) { //tm990189_state *state = machine.driver_data(); uint8_t buf; if (/*state->m_rs232_rts &&*/ /*(mame_ftell(state->m_rs232_fp) < mame_fsize(state->m_rs232_fp))*/1) { tms9902_device* tms9902 = static_cast(machine().device("tms9902")); if (fread(&buf, 1) == 1) tms9902->rcv_data(buf); } } image_init_result tm990_189_rs232_image_device::call_load() { tm990189_state *state = machine().driver_data(); tms9902_device* tms9902 = static_cast(machine().device("tms9902")); tms9902->rcv_dsr(ASSERT_LINE); state->m_rs232_input_timer = timer_alloc(); state->m_rs232_input_timer->adjust(attotime::zero, 0, attotime::from_msec(10)); return image_init_result::PASS; } void tm990_189_rs232_image_device::call_unload() { tm990189_state *state = machine().driver_data(); tms9902_device* tms9902 = static_cast(machine().device("tms9902")); tms9902->rcv_dsr(CLEAR_LINE); state->m_rs232_input_timer->reset(); /* FIXME - timers should only be allocated once */ } #define MCFG_TM990_189_RS232_ADD(_tag) \ MCFG_DEVICE_ADD(_tag, TM990_189_RS232, 0) /* static TMS9902_RTS_CALLBACK( rts_callback ) { tm990189 *state = device->machine().driver_data(); state->m_rs232_rts = RTS; tms9902->set_cts(RTS); } */ WRITE8_MEMBER( tm990189_state::xmit_callback ) { uint8_t buf = data; if (m_rs232_fp) m_rs232_fp->fwrite(&buf, 1); } /* External instruction decoding */ WRITE8_MEMBER( tm990189_state::external_operation ) { switch (offset) { case 2: // IDLE if (data) m_LED_state |= 0x40; else m_LED_state &= ~0x40; break; case 3: // RSET // Not used on the default board break; case 5: // CKON: set DECKCONTROL m_LED_state |= 0x20; m_cass->change_state(CASSETTE_MOTOR_ENABLED,CASSETTE_MASK_MOTOR); break; case 6: // CKOF: clear DECKCONTROL m_LED_state &= ~0x20; m_cass->change_state(CASSETTE_MOTOR_DISABLED,CASSETTE_MASK_MOTOR); break; case 7: // LREX: trigger LOAD hold_load(); break; default: // undefined break; } } /* Video Board handling */ READ8_MEMBER( tm990189_state::video_vdp_r ) { int reply = 0; /* When the tms9980 reads @>2000 or @>2001, it actually does a word access: it reads @>2000 first, then @>2001. According to schematics, both access are decoded to the VDP: read accesses are therefore bogus, all the more so since the two reads are too close (1us) for the VDP to be able to reload the read buffer: the read address pointer is probably incremented by 2, but only the first byte is valid. There is a work around for this problem: all you need is reloading the address pointer before each read. However, software always uses the second byte, which is very weird, particularly for the status port. Presumably, since the read buffer has not been reloaded, the second byte read from the memory read port is equal to the first; however, this explanation is not very convincing for the status port. Still, I do not have any better explanation, so I will stick with it. */ if (offset & 2) reply = m_tms9918->register_read(space, 0); else reply = m_tms9918->vram_read(space, 0); if (!(offset & 1)) m_bogus_read_save = reply; else reply = m_bogus_read_save; return reply; } WRITE8_MEMBER( tm990189_state::video_vdp_w ) { if (offset & 1) { if (offset & 2) m_tms9918->register_write(space, 0, data); else m_tms9918->vram_write(space, 0, data); } } READ8_MEMBER( tm990189_state::video_joy_r ) { uint8_t data = ioport("BUTTONS")->read(); if (m_joy1x_timer->remaining() < attotime::zero) data |= 0x01; if (m_joy1y_timer->remaining() < attotime::zero) data |= 0x02; if (m_joy2x_timer->remaining() < attotime::zero) data |= 0x08; if (m_joy2y_timer->remaining() < attotime::zero) data |= 0x10; return data; } WRITE8_MEMBER( tm990189_state::video_joy_w ) { m_joy1x_timer->reset(attotime::from_usec(ioport("JOY1_X")->read()*28+28)); m_joy1y_timer->reset(attotime::from_usec(ioport("JOY1_Y")->read()*28+28)); m_joy2x_timer->reset(attotime::from_usec(ioport("JOY2_X")->read()*28+28)); m_joy2y_timer->reset(attotime::from_usec(ioport("JOY2_Y")->read()*28+28)); } /* // user tms9901 setup static const tms9901_interface usr9901reset_param = { tms9901_device::INT1 | tms9901_device::INT2 | tms9901_device::INT3 | tms9901_device::INT4 | tms9901_device::INT5 | tms9901_device::INT6, // only input pins whose state is always known // Read handler. Covers all input lines (see tms9901.h) DEVCB_NOOP, // write handlers { DEVCB_DRIVER_LINE_MEMBER(tm990189_state, usr9901_led0_w), DEVCB_DRIVER_LINE_MEMBER(tm990189_state, usr9901_led1_w), DEVCB_DRIVER_LINE_MEMBER(tm990189_state, usr9901_led2_w), DEVCB_DRIVER_LINE_MEMBER(tm990189_state, usr9901_led3_w), DEVCB_NOOP, DEVCB_NOOP, DEVCB_NOOP, DEVCB_NOOP, DEVCB_NOOP, DEVCB_NOOP, DEVCB_NOOP, DEVCB_NOOP, DEVCB_NOOP, DEVCB_NOOP, DEVCB_NOOP, DEVCB_NOOP }, // interrupt handler DEVCB_DRIVER_MEMBER(tm990189_state, usr9901_interrupt_callback) }; */ /* // system tms9901 setup static const tms9901_interface sys9901reset_param = { 0, // only input pins whose state is always known // Read handler. Covers all input lines (see tms9901.h) DEVCB_DRIVER_MEMBER(tm990189_state, sys9901_r), // write handlers { DEVCB_DRIVER_LINE_MEMBER(tm990189_state, sys9901_digitsel0_w), DEVCB_DRIVER_LINE_MEMBER(tm990189_state, sys9901_digitsel1_w), DEVCB_DRIVER_LINE_MEMBER(tm990189_state, sys9901_digitsel2_w), DEVCB_DRIVER_LINE_MEMBER(tm990189_state, sys9901_digitsel3_w), DEVCB_DRIVER_LINE_MEMBER(tm990189_state, sys9901_segment0_w), DEVCB_DRIVER_LINE_MEMBER(tm990189_state, sys9901_segment1_w), DEVCB_DRIVER_LINE_MEMBER(tm990189_state, sys9901_segment2_w), DEVCB_DRIVER_LINE_MEMBER(tm990189_state, sys9901_segment3_w), DEVCB_DRIVER_LINE_MEMBER(tm990189_state, sys9901_segment4_w), DEVCB_DRIVER_LINE_MEMBER(tm990189_state, sys9901_segment5_w), DEVCB_DRIVER_LINE_MEMBER(tm990189_state, sys9901_segment6_w), DEVCB_DRIVER_LINE_MEMBER(tm990189_state, sys9901_segment7_w), DEVCB_DRIVER_LINE_MEMBER(tm990189_state, sys9901_dsplytrgr_w), DEVCB_DRIVER_LINE_MEMBER(tm990189_state, sys9901_shiftlight_w), DEVCB_DRIVER_LINE_MEMBER(tm990189_state, sys9901_spkrdrive_w), DEVCB_DRIVER_LINE_MEMBER(tm990189_state, sys9901_tapewdata_w) }, // interrupt handler DEVCB_DRIVER_MEMBER(tm990189_state, sys9901_interrupt_callback) }; */ /* Memory map: 0x0000-0x03ff: 1kb RAM 0x0400-0x07ff: 1kb onboard expansion RAM 0x0800-0x0bff or 0x0800-0x0fff: 1kb or 2kb onboard expansion ROM 0x1000-0x2fff: reserved for offboard expansion Only known card: Color Video Board 0x1000-0x17ff (R): Video board ROM 1 0x1800-0x1fff (R): Video board ROM 2 0x2000-0x27ff (R): tms9918 read ports (bogus) (address & 2) == 0: data port (bogus) (address & 2) == 1: status register (bogus) 0x2800-0x2fff (R): joystick read port d2: joy 2 switch d3: joy 2 Y (length of pulse after retrigger is proportional to axis position) d4: joy 2 X (length of pulse after retrigger is proportional to axis position) d2: joy 1 switch d3: joy 1 Y (length of pulse after retrigger is proportional to axis position) d4: joy 1 X (length of pulse after retrigger is proportional to axis position) 0x1801-0x1fff ((address & 1) == 1) (W): joystick write port (retrigger) 0x2801-0x2fff ((address & 1) == 1) (W): tms9918 write ports (address & 2) == 0: data port (address & 2) == 1: control register 0x3000-0x3fff: 4kb onboard ROM */ void tm990189_state::tm990_189_memmap(address_map &map) { map(0x0000, 0x07ff).ram(); /* RAM */ map(0x0800, 0x0fff).rom(); /* extra ROM - application programs with unibug, remaining 2kb of program for university basic */ map(0x1000, 0x2fff).noprw(); /* reserved for expansion (RAM and/or tms9918 video controller) */ map(0x3000, 0x3fff).rom(); /* main ROM - unibug or university basic */ } void tm990189_state::tm990_189_v_memmap(address_map &map) { map(0x0000, 0x07ff).ram(); /* RAM */ map(0x0800, 0x0fff).rom(); /* extra ROM - application programs with unibug, remaining 2kb of program for university basic */ map(0x1000, 0x17ff).rom().nopw(); /* video board ROM 1 */ map(0x1800, 0x1fff).rom().w(this, FUNC(tm990189_state::video_joy_w)); /* video board ROM 2 and joystick write port*/ map(0x2000, 0x27ff).r(this, FUNC(tm990189_state::video_vdp_r)).nopw(); /* video board tms9918 read ports (bogus) */ map(0x2800, 0x2fff).rw(this, FUNC(tm990189_state::video_joy_r), FUNC(tm990189_state::video_vdp_w)); /* video board joystick read port and tms9918 write ports */ map(0x3000, 0x3fff).rom(); /* main ROM - unibug or university basic */ } /* CRU map The board features one tms9901 for keyboard and sound I/O, another tms9901 to drive the parallel port and a few LEDs and handle tms9980 interrupts, and one optional tms9902 for serial I/O. * bits >000->1ff (R12=>000->3fe): first TMS9901: parallel port, a few LEDs, interrupts - CRU bits 1-5: UINT1* through UINT5* (jumper connectable to parallel port or COMINT from tms9902) - CRU bit 6: KBINT (interrupt request from second tms9901) - CRU bits 7-15: mirrors P15-P7 - CRU bits 16-31: P0-P15 (parallel port) (bits 16, 17, 18 and 19 control LEDs numbered 1, 2, 3 and 4, too) * bits >200->3ff (R12=>400->7fe): second TMS9901: display, keyboard and sound - CRU bits 1-5: KB1*-KB5* (inputs from current keyboard row) - CRU bit 6: RDATA (tape in) - CRU bits 7-15: mirrors P15-P7 - CRU bits 16-19: DIGITSELA-DIGITSELD (select current display digit and keyboard row) - CRU bits 20-27: SEGMENTA*-SEGMENTG* and SEGMENTP* (drives digit segments) - CRU bit 28: DSPLYTRGR*: used as an alive signal for a watchdog circuit which turns off the display when the program hangs and LED segments would continuously emit light - bit 29: SHIFTLIGHT (controls shift light) - bit 30: SPKRDRIVE (controls buzzer) - bit 31: WDATA (tape out) * bits >400->5ff (R12=>800->bfe): optional TMS9902 * bits >600->7ff (R12=>c00->ffe): reserved for expansion * write 0 to bits >1000->17ff: IDLE: flash IDLE LED * write 0 to bits >1800->1fff: RSET: not connected, but it is decoded and hackers can connect any device they like to this pin * write 1 to bits >0800->0fff: CKON: light FWD LED and activates DECKCONTROL* signal (part of tape interface) * write 1 to bits >1000->17ff: CKOF: light off FWD LED and deactivates DECKCONTROL* signal (part of tape interface) * write 1 to bits >1800->1fff: LREX: trigger load interrupt Keyboard map: see input ports Display segment designation: a ___ | | f| |b |___| | g | e| |c |___| .p d */ void tm990189_state::tm990_189_cru_map(address_map &map) { map(0x0000, 0x003f).r(m_tms9901_usr, FUNC(tms9901_device::read)); /* user I/O tms9901 */ map(0x0040, 0x006f).r(m_tms9901_sys, FUNC(tms9901_device::read)); /* system I/O tms9901 */ map(0x0080, 0x00cf).r("tms9902", FUNC(tms9902_device::cruread)); /* optional tms9902 */ map(0x0000, 0x01ff).w(m_tms9901_usr, FUNC(tms9901_device::write)); /* user I/O tms9901 */ map(0x0200, 0x03ff).w(m_tms9901_sys, FUNC(tms9901_device::write)); /* system I/O tms9901 */ map(0x0400, 0x05ff).w("tms9902", FUNC(tms9902_device::cruwrite)); /* optional tms9902 */ } MACHINE_CONFIG_START(tm990189_state::tm990_189) /* basic machine hardware */ MCFG_TMS99xx_ADD("maincpu", TMS9980A, 2000000, tm990_189_memmap, tm990_189_cru_map) MCFG_TMS99xx_EXTOP_HANDLER( WRITE8(*this, tm990189_state, external_operation) ) MCFG_MACHINE_START_OVERRIDE(tm990189_state, tm990_189 ) MCFG_MACHINE_RESET_OVERRIDE(tm990189_state, tm990_189 ) /* Video hardware */ MCFG_DEFAULT_LAYOUT(layout_tm990189) /* sound hardware */ SPEAKER(config, "mono").front_center(); WAVE(config, "wave", "cassette").add_route(ALL_OUTPUTS, "mono", 0.25); SPEAKER_SOUND(config, "speaker").add_route(ALL_OUTPUTS, "mono", 0.50); /* Devices */ MCFG_CASSETTE_ADD( "cassette" ) MCFG_DEVICE_ADD(TMS9901_0_TAG, TMS9901, 2000000) MCFG_TMS9901_P0_HANDLER( WRITELINE( *this, tm990189_state, usr9901_led0_w) ) MCFG_TMS9901_P1_HANDLER( WRITELINE( *this, tm990189_state, usr9901_led1_w) ) MCFG_TMS9901_P2_HANDLER( WRITELINE( *this, tm990189_state, usr9901_led2_w) ) MCFG_TMS9901_P3_HANDLER( WRITELINE( *this, tm990189_state, usr9901_led3_w) ) MCFG_TMS9901_INTLEVEL_HANDLER( WRITE8( *this, tm990189_state, usr9901_interrupt_callback) ) MCFG_DEVICE_ADD(TMS9901_1_TAG, TMS9901, 2000000) MCFG_TMS9901_READBLOCK_HANDLER( READ8(*this, tm990189_state, sys9901_r) ) MCFG_TMS9901_P0_HANDLER( WRITELINE( *this, tm990189_state, sys9901_digitsel0_w) ) MCFG_TMS9901_P1_HANDLER( WRITELINE( *this, tm990189_state, sys9901_digitsel1_w) ) MCFG_TMS9901_P2_HANDLER( WRITELINE( *this, tm990189_state, sys9901_digitsel2_w) ) MCFG_TMS9901_P3_HANDLER( WRITELINE( *this, tm990189_state, sys9901_digitsel3_w) ) MCFG_TMS9901_P4_HANDLER( WRITELINE( *this, tm990189_state, sys9901_segment0_w) ) MCFG_TMS9901_P5_HANDLER( WRITELINE( *this, tm990189_state, sys9901_segment1_w) ) MCFG_TMS9901_P6_HANDLER( WRITELINE( *this, tm990189_state, sys9901_segment2_w) ) MCFG_TMS9901_P7_HANDLER( WRITELINE( *this, tm990189_state, sys9901_segment3_w) ) MCFG_TMS9901_P8_HANDLER( WRITELINE( *this, tm990189_state, sys9901_segment4_w) ) MCFG_TMS9901_P9_HANDLER( WRITELINE( *this, tm990189_state, sys9901_segment5_w) ) MCFG_TMS9901_P10_HANDLER( WRITELINE( *this, tm990189_state, sys9901_segment6_w) ) MCFG_TMS9901_P11_HANDLER( WRITELINE( *this, tm990189_state, sys9901_segment7_w) ) MCFG_TMS9901_P12_HANDLER( WRITELINE( *this, tm990189_state, sys9901_dsplytrgr_w) ) MCFG_TMS9901_P13_HANDLER( WRITELINE( *this, tm990189_state, sys9901_shiftlight_w) ) MCFG_TMS9901_P14_HANDLER( WRITELINE( *this, tm990189_state, sys9901_spkrdrive_w) ) MCFG_TMS9901_P15_HANDLER( WRITELINE( *this, tm990189_state, sys9901_tapewdata_w) ) MCFG_TMS9901_INTLEVEL_HANDLER( WRITE8( *this, tm990189_state, sys9901_interrupt_callback) ) MCFG_DEVICE_ADD("tms9902", TMS9902, 2000000) // MZ: needs to be fixed once the RS232 support is complete MCFG_TMS9902_XMIT_CB(WRITE8(*this, tm990189_state, xmit_callback)) /* called when a character is transmitted */ MCFG_TM990_189_RS232_ADD("rs232") MCFG_TIMER_DRIVER_ADD_PERIODIC("display_timer", tm990189_state, display_callback, attotime::from_hz(30)) // Need to delay the timer, or it will spoil the initial LOAD // TODO: Fix this, probably inside CPU MCFG_TIMER_START_DELAY(attotime::from_msec(150)) MACHINE_CONFIG_END MACHINE_CONFIG_START(tm990189_state::tm990_189_v) /* basic machine hardware */ MCFG_TMS99xx_ADD("maincpu", TMS9980A, 2000000, tm990_189_v_memmap, tm990_189_cru_map) MCFG_TMS99xx_EXTOP_HANDLER( WRITE8(*this, tm990189_state, external_operation) ) MCFG_MACHINE_START_OVERRIDE(tm990189_state, tm990_189_v ) MCFG_MACHINE_RESET_OVERRIDE(tm990189_state, tm990_189_v ) /* video hardware */ MCFG_DEVICE_ADD( "tms9918", TMS9918, XTAL(10'738'635) / 2 ) MCFG_TMS9928A_VRAM_SIZE(0x4000) MCFG_TMS9928A_SCREEN_ADD_NTSC( "screen" ) MCFG_SCREEN_UPDATE_DEVICE( "tms9918", tms9918_device, screen_update ) MCFG_DEFAULT_LAYOUT(layout_tm990189v) /* sound hardware */ SPEAKER(config, "mono").front_center(); WAVE(config, "wave", "cassette").add_route(ALL_OUTPUTS, "mono", 0.25); SPEAKER_SOUND(config, "speaker").add_route(ALL_OUTPUTS, "mono", 0.50); /* one two-level buzzer */ /* Devices */ MCFG_CASSETTE_ADD( "cassette" ) MCFG_DEVICE_ADD(TMS9901_0_TAG, TMS9901, 2000000) MCFG_TMS9901_P0_HANDLER( WRITELINE( *this, tm990189_state, usr9901_led0_w) ) MCFG_TMS9901_P1_HANDLER( WRITELINE( *this, tm990189_state, usr9901_led1_w) ) MCFG_TMS9901_P2_HANDLER( WRITELINE( *this, tm990189_state, usr9901_led2_w) ) MCFG_TMS9901_P3_HANDLER( WRITELINE( *this, tm990189_state, usr9901_led3_w) ) MCFG_TMS9901_INTLEVEL_HANDLER( WRITE8( *this, tm990189_state, usr9901_interrupt_callback) ) MCFG_DEVICE_ADD(TMS9901_1_TAG, TMS9901, 2000000) MCFG_TMS9901_READBLOCK_HANDLER( READ8(*this, tm990189_state, sys9901_r) ) MCFG_TMS9901_P0_HANDLER( WRITELINE( *this, tm990189_state, sys9901_digitsel0_w) ) MCFG_TMS9901_P1_HANDLER( WRITELINE( *this, tm990189_state, sys9901_digitsel1_w) ) MCFG_TMS9901_P2_HANDLER( WRITELINE( *this, tm990189_state, sys9901_digitsel2_w) ) MCFG_TMS9901_P3_HANDLER( WRITELINE( *this, tm990189_state, sys9901_digitsel3_w) ) MCFG_TMS9901_P4_HANDLER( WRITELINE( *this, tm990189_state, sys9901_segment0_w) ) MCFG_TMS9901_P5_HANDLER( WRITELINE( *this, tm990189_state, sys9901_segment1_w) ) MCFG_TMS9901_P6_HANDLER( WRITELINE( *this, tm990189_state, sys9901_segment2_w) ) MCFG_TMS9901_P7_HANDLER( WRITELINE( *this, tm990189_state, sys9901_segment3_w) ) MCFG_TMS9901_P8_HANDLER( WRITELINE( *this, tm990189_state, sys9901_segment4_w) ) MCFG_TMS9901_P9_HANDLER( WRITELINE( *this, tm990189_state, sys9901_segment5_w) ) MCFG_TMS9901_P10_HANDLER( WRITELINE( *this, tm990189_state, sys9901_segment6_w) ) MCFG_TMS9901_P11_HANDLER( WRITELINE( *this, tm990189_state, sys9901_segment7_w) ) MCFG_TMS9901_P12_HANDLER( WRITELINE( *this, tm990189_state, sys9901_dsplytrgr_w) ) MCFG_TMS9901_P13_HANDLER( WRITELINE( *this, tm990189_state, sys9901_shiftlight_w) ) MCFG_TMS9901_P14_HANDLER( WRITELINE( *this, tm990189_state, sys9901_spkrdrive_w) ) MCFG_TMS9901_P15_HANDLER( WRITELINE( *this, tm990189_state, sys9901_tapewdata_w) ) MCFG_TMS9901_INTLEVEL_HANDLER( WRITE8( *this, tm990189_state, sys9901_interrupt_callback) ) MCFG_DEVICE_ADD("tms9902", TMS9902, 2000000) // MZ: needs to be fixed once the RS232 support is complete MCFG_TMS9902_XMIT_CB(WRITE8(*this, tm990189_state, xmit_callback)) /* called when a character is transmitted */ MCFG_TM990_189_RS232_ADD("rs232") MCFG_TIMER_DRIVER_ADD_PERIODIC("display_timer", tm990189_state, display_callback, attotime::from_hz(30)) MCFG_TIMER_START_DELAY(attotime::from_msec(150)) MACHINE_CONFIG_END /* ROM loading */ ROM_START(990189) /*CPU memory space*/ ROM_REGION(0x4000, "maincpu", 0 ) /* extra ROM */ ROM_LOAD("990-469.u32", 0x0800, 0x0800, CRC(08df7edb) SHA1(fa9751fd2e3e5d7ae03819fc9c7099e2ddd9fb53)) /* boot ROM */ ROM_LOAD("990-469.u33", 0x3000, 0x1000, CRC(e9b4ac1b) SHA1(96e88f4cb7a374033cdf3af0dc26ca5b1d55b9f9)) ROM_END ROM_START(990189v) /*CPU memory space*/ ROM_REGION(0x4000, "maincpu", 0 ) /* extra ROM */ ROM_LOAD("990-469.u32", 0x0800, 0x0800, CRC(08df7edb) SHA1(fa9751fd2e3e5d7ae03819fc9c7099e2ddd9fb53)) /* extension ROM */ ROM_LOAD_OPTIONAL("demo1000.u13", 0x1000, 0x0800, CRC(c0e16685) SHA1(d0d314134c42fa4682aafbace67f539f67f6ba65)) /* extension ROM */ ROM_LOAD_OPTIONAL("demo1800.u11", 0x1800, 0x0800, CRC(8737dc4b) SHA1(b87da7aa4d3f909e70f885c4b36999cc1abf5764)) /* boot ROM */ ROM_LOAD("990-469.u33", 0x3000, 0x1000, CRC(e9b4ac1b) SHA1(96e88f4cb7a374033cdf3af0dc26ca5b1d55b9f9)) /*ROM_LOAD("unibasic.bin", 0x3000, 0x1000, CRC(de4d9744))*/ /* older, partial dump of university BASIC */ ROM_END #define JOYSTICK_DELTA 10 #define JOYSTICK_SENSITIVITY 100 static INPUT_PORTS_START(tm990_189) PORT_START( "LOADINT") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Load interrupt") PORT_CODE(KEYCODE_PRTSCR) PORT_CHANGED_MEMBER(DEVICE_SELF, tm990189_state, load_interrupt, 1) /* 45-key calculator-like alphanumeric keyboard... */ PORT_START("LINE0") /* row 0 */ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Sp *") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') PORT_CHAR('*') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Ret '") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) PORT_CHAR('\'') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("$ =") PORT_CODE(KEYCODE_STOP) PORT_CHAR('$') PORT_CHAR('=') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(", <") PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') PORT_START("LINE1") /* row 1 */ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("+ (") PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('+') PORT_CHAR('(') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("- )") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('-') PORT_CHAR(')') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("@ /") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('@') PORT_CHAR('/') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("> %") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('>') PORT_CHAR('%') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("0 ^") PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR('^') PORT_START("LINE2") /* row 2 */ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("1 .") PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('.') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("2 ;") PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR(';') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("3 :") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR(':') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("4 ?") PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('?') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("5 !") PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('!') PORT_START("LINE3") /* row 3 */ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("6 _") PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('_') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("7 \"") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\"') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8 #") PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('#') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("9 (ESC)") PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("A (SOH)") PORT_CODE(KEYCODE_A) PORT_CHAR('A') PORT_START("LINE4") /* row 4 */ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("B (STH)") PORT_CODE(KEYCODE_B) PORT_CHAR('B') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("C (ETX)") PORT_CODE(KEYCODE_C) PORT_CHAR('C') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("D (EOT)") PORT_CODE(KEYCODE_D) PORT_CHAR('D') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("E (ENQ)") PORT_CODE(KEYCODE_E) PORT_CHAR('E') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F (ACK)") PORT_CODE(KEYCODE_F) PORT_CHAR('F') PORT_START("LINE5") /* row 5 */ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("G (BEL)") PORT_CODE(KEYCODE_G) PORT_CHAR('G') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("H (BS)") PORT_CODE(KEYCODE_H) PORT_CHAR('H') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("I (HT)") PORT_CODE(KEYCODE_I) PORT_CHAR('I') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("J (LF)") PORT_CODE(KEYCODE_J) PORT_CHAR('J') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("K (VT)") PORT_CODE(KEYCODE_K) PORT_CHAR('K') PORT_START("LINE6") /* row 6 */ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("L (FF)") PORT_CODE(KEYCODE_L) PORT_CHAR('L') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("M (DEL)") PORT_CODE(KEYCODE_M) PORT_CHAR('M') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("N (SO)") PORT_CODE(KEYCODE_N) PORT_CHAR('N') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("O (SI)") PORT_CODE(KEYCODE_O) PORT_CHAR('O') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("P (DLE)") PORT_CODE(KEYCODE_P) PORT_CHAR('P') PORT_START("LINE7") /* row 7 */ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Q (DC1)") PORT_CODE(KEYCODE_Q) PORT_CHAR('Q') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("R (DC2)") PORT_CODE(KEYCODE_R) PORT_CHAR('R') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("S (DC3)") PORT_CODE(KEYCODE_S) PORT_CHAR('S') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("T (DC4)") PORT_CODE(KEYCODE_T) PORT_CHAR('T') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("U (NAK)") PORT_CODE(KEYCODE_U) PORT_CHAR('U') PORT_START("LINE8") /* row 8 */ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("V <-D") PORT_CODE(KEYCODE_V) PORT_CHAR('V') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("W (ETB)") PORT_CODE(KEYCODE_W) PORT_CHAR('W') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("X (CAN)") PORT_CODE(KEYCODE_X) PORT_CHAR('X') PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Y (EM)") PORT_CODE(KEYCODE_Y) PORT_CHAR('Y') PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Z ->D") PORT_CODE(KEYCODE_Z) PORT_CHAR('Z') /* analog joysticks (video board only) */ PORT_START("BUTTONS") /* joystick 1 & 2 buttons */ PORT_BIT(0x0004, IP_ACTIVE_HIGH, IPT_BUTTON1) PORT_PLAYER(1) PORT_BIT(0x0020, IP_ACTIVE_HIGH, IPT_BUTTON1) PORT_PLAYER(2) PORT_START("JOY1_X") /* joystick 1, X axis */ PORT_BIT( 0x3ff, 0x1aa, IPT_AD_STICK_X) PORT_SENSITIVITY(JOYSTICK_SENSITIVITY) PORT_KEYDELTA(JOYSTICK_DELTA) PORT_MINMAX(0xd2,0x282 ) PORT_PLAYER(1) PORT_START("JOY1_Y") /* joystick 1, Y axis */ PORT_BIT( 0x3ff, 0x1aa, IPT_AD_STICK_Y) PORT_SENSITIVITY(JOYSTICK_SENSITIVITY) PORT_KEYDELTA(JOYSTICK_DELTA) PORT_MINMAX(0xd2,0x282 ) PORT_PLAYER(1) PORT_REVERSE PORT_START("JOY2_X") /* joystick 2, X axis */ PORT_BIT( 0x3ff, 0x180, IPT_AD_STICK_X) PORT_SENSITIVITY(JOYSTICK_SENSITIVITY) PORT_KEYDELTA(JOYSTICK_DELTA) PORT_MINMAX(0xd2,0x180 ) PORT_PLAYER(2) PORT_START("JOY2_Y") /* joystick 2, Y axis */ PORT_BIT( 0x3ff, 0x1aa, IPT_AD_STICK_Y) PORT_SENSITIVITY(JOYSTICK_SENSITIVITY) PORT_KEYDELTA(JOYSTICK_DELTA) PORT_MINMAX(0xd2,0x282 ) PORT_PLAYER(2) PORT_REVERSE INPUT_PORTS_END // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS COMP( 1978, 990189, 0, 0, tm990_189, tm990_189, tm990189_state, empty_init, "Texas Instruments", "TM 990/189 University Board microcomputer", 0 ) COMP( 1980, 990189v, 990189, 0, tm990_189_v, tm990_189, tm990189_state, empty_init, "Texas Instruments", "TM 990/189 University Board microcomputer with Video Board Interface", 0 )