// license:BSD-3-Clause // copyright-holders:Robbbert /*************************************************************************** Savia 84 More data at : http://www.nostalcomp.cz/pdfka/savia84.pdf http://www.nostalcomp.cz/savia.php (use archive.org) 2011-02-05 Skeleton driver. 2011-10-11 Found a new rom. Working [Robbbert] I assume all the LEDs are red ones. The LEDs down the left side I assume to be bit 0 through 7 in that order. Pasting: 0-F : as is DA : ^ AD : - GO : X Here is a test program. Copy the text and Paste into the emulator. -1800^3E^55^D3^F9^76^XX1800^ ****************************************************************************/ #include "emu.h" #include "cpu/z80/z80.h" #include "machine/i8255.h" #include "video/pwm.h" #include "savia84.lh" class savia84_state : public driver_device { public: savia84_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") , m_ppi8255(*this, "ppi8255") , m_display(*this, "display") , m_io_keyboard(*this, "X%u", 0U) , m_leds(*this, "led%u", 0U) { } void savia84(machine_config &config); protected: virtual void machine_start() override; private: uint8_t ppi_portc_r(); void ppi_porta_w(uint8_t data); void ppi_portb_w(uint8_t data); void ppi_portc_w(uint8_t data); void io_map(address_map &map); void mem_map(address_map &map); uint8_t m_digit = 0U; uint8_t m_seg = 0U; required_device m_maincpu; required_device m_ppi8255; required_device m_display; required_ioport_array<9> m_io_keyboard; output_finder<8> m_leds; }; void savia84_state::mem_map(address_map &map) { map.unmap_value_high(); map.global_mask(0x7fff); // A15 not connected at the CPU map(0x0000, 0x07ff).rom(); map(0x1800, 0x1fff).ram(); } void savia84_state::io_map(address_map &map) { map.unmap_value_high(); map.global_mask(0x07); map(0x00, 0x03).rw(m_ppi8255, FUNC(i8255_device::read), FUNC(i8255_device::write)); // ports F8-FB } /* Input ports */ static INPUT_PORTS_START( savia84 ) PORT_START("X0") PORT_BIT( 0x9F, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_START("X1") PORT_BIT( 0x8F, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("S") PORT_CODE(KEYCODE_S) PORT_CHAR('S') PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_START("X2") PORT_BIT( 0x8F, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_CHAR('L') PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('A') PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_START("X3") PORT_BIT( 0x9F, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("R") PORT_CODE(KEYCODE_R) PORT_CHAR('R') PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("Ex") PORT_CODE(KEYCODE_X) PORT_CHAR('X') PORT_START("X4") PORT_BIT( 0x8F, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("BR") PORT_CODE(KEYCODE_Q) PORT_CHAR('Q') PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('F') PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('D') PORT_START("X5") PORT_BIT( 0x8F, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("AD") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('E') PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('C') PORT_START("X6") PORT_BIT( 0x9F, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('B') PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_START("X7") PORT_BIT( 0x9F, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_START("X8") PORT_BIT( 0x8F, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("DA") PORT_CODE(KEYCODE_UP) PORT_CHAR('^') PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CHAR('1') INPUT_PORTS_END void savia84_state::ppi_porta_w(uint8_t data) // OUT F8 - output segments on the selected digit { m_seg = ~data; m_display->matrix(1 << m_digit, m_seg); } void savia84_state::ppi_portb_w(uint8_t data) // OUT F9 - light the 8 leds down the left side { for (int i = 0; i < 8; i++) m_leds[i] = !BIT(data, i); } void savia84_state::ppi_portc_w(uint8_t data) // OUT FA - set keyboard scanning row; set digit to display { m_digit = data & 15; m_display->matrix(1 << m_digit, m_seg); } uint8_t savia84_state::ppi_portc_r() // IN FA - read keyboard { if (m_digit < 9) return m_io_keyboard[m_digit]->read(); else return 0xff; } void savia84_state::machine_start() { m_leds.resolve(); save_item(NAME(m_digit)); save_item(NAME(m_seg)); } void savia84_state::savia84(machine_config &config) { /* basic machine hardware */ Z80(config, m_maincpu, XTAL(4'000'000) / 2); m_maincpu->set_addrmap(AS_PROGRAM, &savia84_state::mem_map); m_maincpu->set_addrmap(AS_IO, &savia84_state::io_map); /* video hardware */ config.set_default_layout(layout_savia84); PWM_DISPLAY(config, m_display).set_size(9, 7); m_display->set_segmask(0x1fd, 0x7f); /* Devices */ I8255(config, m_ppi8255); m_ppi8255->out_pa_callback().set(FUNC(savia84_state::ppi_porta_w)); m_ppi8255->out_pb_callback().set(FUNC(savia84_state::ppi_portb_w)); m_ppi8255->in_pc_callback().set(FUNC(savia84_state::ppi_portc_r)); m_ppi8255->out_pc_callback().set(FUNC(savia84_state::ppi_portc_w)); } /* ROM definition */ ROM_START( savia84 ) ROM_REGION( 0x0800, "maincpu", 0 ) ROM_LOAD("savia84.bin", 0x0000, 0x0800, CRC(fa8f1fcf) SHA1(b08404469ed988d96c0413416b6a66f3e5b997a3)) // Note - the below is a bad dump and does not work //ROM_LOAD("savia84_1kb.bin", 0x0000, 0x0400, CRC(23a5c15e) SHA1(7e769ed8960d8c591a25cfe4effffcca3077c94b)) ROM_END /* Driver */ // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS COMP( 1984, savia84, 0, 0, savia84, savia84, savia84_state, empty_init, "J.T. Hyan", "Savia 84", MACHINE_NO_SOUND_HW | MACHINE_SUPPORTS_SAVE )