// license:BSD-3-Clause // copyright-holders:Robbbert /*************************************************************************** Goldstar FC-100 (FC stands for Famicom) 2014/04/20 Skeleton driver. Known chips: M5C6847P, AY-3-8910, 8251. XTALS 7.15909, 4.9152 No manuals or schematics available. Shift-Run to BREAK out of CLOAD. Cassette uses the uart. There is an inbuilt Monitor. MON to enter. Commands are D,G,M,R,S,X. Test of semigraphic 6 10 SCREEN 2:CLS 20 FOR I=0 TO 360 30 PSET(128+SIN(I)*90,91-COS(I)*90), 1 40 NEXT RUN TODO: - Cassette can be 600 or 1200 baud, how is 600 baud selected? - Hookup Graphics modes and colours - Unknown i/o ports - Need cart software (current code is just a guess) ****************************************************************************/ #include "emu.h" #include "cpu/z80/z80.h" #include "video/mc6847.h" #include "machine/i8251.h" #include "machine/clock.h" #include "sound/ay8910.h" #include "imagedev/cassette.h" #include "sound/wave.h" #include "formats/fc100_cas.h" #include "machine/buffer.h" #include "bus/centronics/ctronics.h" #include "bus/generic/slot.h" #include "bus/generic/carts.h" class fc100_state : public driver_device { public: fc100_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") , m_vdg(*this, "vdg") , m_p_videoram(*this, "videoram") , m_cass(*this, "cassette") , m_cart(*this, "cartslot") , m_uart(*this, "uart") , m_centronics(*this, "centronics") , m_keyboard(*this, "KEY") { } DECLARE_READ8_MEMBER(mc6847_videoram_r); DECLARE_READ8_MEMBER(port00_r); DECLARE_WRITE8_MEMBER(port31_w); DECLARE_WRITE8_MEMBER(port33_w); DECLARE_WRITE8_MEMBER(port43_w); DECLARE_WRITE8_MEMBER(port60_w); DECLARE_WRITE8_MEMBER(port70_w); DECLARE_WRITE_LINE_MEMBER(txdata_callback); DECLARE_WRITE_LINE_MEMBER(uart_clock_w); DECLARE_DRIVER_INIT(fc100); TIMER_DEVICE_CALLBACK_MEMBER(timer_c); TIMER_DEVICE_CALLBACK_MEMBER(timer_p); TIMER_DEVICE_CALLBACK_MEMBER(timer_k); UINT8 *m_p_chargen; MC6847_GET_CHARROM_MEMBER(get_char_rom) { return m_p_chargen[(ch * 16 + line) & 0xfff]; } private: virtual void machine_start() override; virtual void machine_reset() override; // graphics signals UINT8 m_ag; UINT8 m_gm2; UINT8 m_gm1; UINT8 m_gm0; UINT8 m_as; UINT8 m_css; UINT8 m_intext; UINT8 m_inv; UINT8 m_cass_data[4]; bool m_cass_state; bool m_cassold; UINT8 m_key_pressed; bool m_banksw_unlocked; required_device m_maincpu; required_device m_vdg; required_shared_ptr m_p_videoram; required_device m_cass; required_device m_cart; required_device m_uart; required_device m_centronics; required_ioport_array<16> m_keyboard; }; static ADDRESS_MAP_START( fc100_mem, AS_PROGRAM, 8, fc100_state ) ADDRESS_MAP_UNMAP_HIGH AM_RANGE( 0x0000, 0x5fff ) AM_ROM AM_REGION("roms", 0) //AM_RANGE(0x6000, 0x6fff) // mapped by the cartslot AM_RANGE( 0x7800, 0x7fff ) AM_READ_BANK("bankr") AM_WRITE_BANK("bankw") // Banked RAM/ROM AM_RANGE( 0x8000, 0xbfff ) AM_RAM // expansion ram pack - if omitted you get a 'Pages?' prompt at boot AM_RANGE( 0xc000, 0xffff ) AM_RAM AM_SHARE("videoram") ADDRESS_MAP_END static ADDRESS_MAP_START( fc100_io, AS_IO, 8, fc100_state ) ADDRESS_MAP_UNMAP_HIGH ADDRESS_MAP_GLOBAL_MASK(0xff) AM_RANGE(0x00, 0x0F) AM_READ(port00_r) // AM_RANGE(0x10, 0x10) AM_WRITE(port10_w) // vdg, unknown effects AM_RANGE(0x21, 0x21) AM_DEVWRITE("psg", ay8910_device, data_w) AM_RANGE(0x22, 0x22) AM_DEVREAD("psg", ay8910_device, data_r) AM_RANGE(0x23, 0x23) AM_DEVWRITE("psg", ay8910_device, address_w) AM_RANGE(0x31, 0x31) AM_WRITE(port31_w) AM_RANGE(0x33, 0x33) AM_WRITE(port33_w) AM_RANGE(0x40, 0x40) AM_DEVWRITE("cent_data_out", output_latch_device, write) AM_RANGE(0x42, 0x42) AM_WRITENOP // bit 0 could be printer select AM_RANGE(0x43, 0x43) AM_WRITE(port43_w) AM_RANGE(0x44, 0x44) AM_DEVREAD("cent_status_in", input_buffer_device, read) AM_RANGE(0x60, 0x61) AM_WRITE(port60_w) AM_RANGE(0x70, 0x71) AM_WRITE(port70_w) AM_RANGE(0xb0, 0xb0) AM_DEVREADWRITE("uart", i8251_device, data_r, data_w) AM_RANGE(0xb8, 0xb8) AM_DEVREADWRITE("uart", i8251_device, status_r, control_w) ADDRESS_MAP_END static INPUT_PORTS_START( fc100 ) PORT_START("KEY.0") PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LALT) PORT_NAME("Graph") // does nothing PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_NAME("Shift") PORT_CHAR(UCHAR_SHIFT_1) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) PORT_NAME("Ctrl") PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_CAPSLOCK) PORT_TOGGLE PORT_NAME("Caps") PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_NAME("[") PORT_CHAR('[') PORT_CHAR('{') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_NAME("]") PORT_CHAR(']') PORT_CHAR('}') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_NAME("P") PORT_CHAR('P') PORT_CHAR('p') PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_NAME("O") PORT_CHAR('O') PORT_CHAR('o') PORT_START("KEY.1") PORT_BIT(0xF0, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH) PORT_NAME("\\") PORT_CHAR('\\') PORT_CHAR('|') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSPACE) PORT_NAME("Backspace") PORT_CHAR(8) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_NAME("=") PORT_CHAR('=') PORT_CHAR('+') PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_NAME("Enter") PORT_CHAR(13) PORT_START("KEY.2") PORT_BIT(0xF0, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_LEFT) PORT_NAME("Left") PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_DOWN) PORT_NAME("Down") PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_RIGHT) PORT_NAME("Right") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_UP) PORT_NAME("Up") PORT_START("KEY.3") PORT_BIT(0xF0, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_NAME("9") PORT_CHAR('9') PORT_CHAR('(') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_NAME(";") PORT_CHAR(';') PORT_CHAR(':') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_NAME("'") PORT_CHAR('\'') PORT_CHAR('"') PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TAB) PORT_NAME("Tab") PORT_CHAR(9) PORT_START("KEY.4") PORT_BIT(0xF0, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_NAME("5") PORT_CHAR('5') PORT_CHAR('^') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_NAME("6") PORT_CHAR('6') PORT_CHAR('&') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_NAME("7") PORT_CHAR('7') PORT_CHAR('%') PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_NAME("8") PORT_CHAR('8') PORT_CHAR('*') PORT_START("KEY.5") PORT_BIT(0xF0, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_NAME("1") PORT_CHAR('1') PORT_CHAR('!') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_NAME("2") PORT_CHAR('2') PORT_CHAR('@') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_NAME("3") PORT_CHAR('3') PORT_CHAR('#') PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_NAME("4") PORT_CHAR('4') PORT_CHAR('$') PORT_START("KEY.6") PORT_BIT(0xF0, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F5) PORT_NAME("F5") PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_NAME("Space") PORT_CHAR(32) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_PGDN) PORT_NAME("Run") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_NAME("0") PORT_CHAR('0') PORT_CHAR(')') PORT_START("KEY.7") PORT_BIT(0xF0, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F1) PORT_NAME("F1") PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F2) PORT_NAME("F2") PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F3) PORT_NAME("F3") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F4) PORT_NAME("F4") PORT_START("KEY.8") PORT_BIT(0xF0, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_NAME("-") PORT_CHAR('-') PORT_CHAR('_') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_NAME("/") PORT_CHAR('/') PORT_CHAR('?') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_NAME(".") PORT_CHAR('.') PORT_CHAR('>') PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_NAME(",") PORT_CHAR(',') PORT_CHAR('<') PORT_START("KEY.9") PORT_BIT(0xF0, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_HOME) PORT_NAME("Home") PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_INSERT) PORT_NAME("Ins") PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_DEL) PORT_NAME("Del") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ESC) PORT_NAME("Esc") PORT_CHAR(27) PORT_START("KEY.10") PORT_BIT(0xF0, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_NAME("B") PORT_CHAR('B') PORT_CHAR('b') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_NAME("N") PORT_CHAR('N') PORT_CHAR('n') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_NAME("M") PORT_CHAR('M') PORT_CHAR('m') PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_NAME("L") PORT_CHAR('L') PORT_CHAR('l') PORT_START("KEY.11") PORT_BIT(0xF0, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_NAME("Z") PORT_CHAR('Z') PORT_CHAR('z') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_NAME("X") PORT_CHAR('X') PORT_CHAR('x') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_NAME("C") PORT_CHAR('C') PORT_CHAR('c') PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_NAME("V") PORT_CHAR('V') PORT_CHAR('v') PORT_START("KEY.12") PORT_BIT(0xF0, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_NAME("G") PORT_CHAR('G') PORT_CHAR('g') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_NAME("H") PORT_CHAR('H') PORT_CHAR('h') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_NAME("J") PORT_CHAR('J') PORT_CHAR('j') PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_NAME("K") PORT_CHAR('K') PORT_CHAR('k') PORT_START("KEY.13") PORT_BIT(0xF0, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_NAME("A") PORT_CHAR('A') PORT_CHAR('a') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_NAME("S") PORT_CHAR('S') PORT_CHAR('s') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_NAME("D") PORT_CHAR('D') PORT_CHAR('d') PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_NAME("F") PORT_CHAR('F') PORT_CHAR('f') PORT_START("KEY.14") PORT_BIT(0xF0, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_NAME("T") PORT_CHAR('T') PORT_CHAR('t') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_NAME("Y") PORT_CHAR('Y') PORT_CHAR('y') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_NAME("U") PORT_CHAR('U') PORT_CHAR('u') PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_NAME("I") PORT_CHAR('I') PORT_CHAR('i') PORT_START("KEY.15") PORT_BIT(0xF0, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_NAME("Q") PORT_CHAR('Q') PORT_CHAR('q') PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_NAME("W") PORT_CHAR('W') PORT_CHAR('w') PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_NAME("E") PORT_CHAR('E') PORT_CHAR('e') PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_NAME("R") PORT_CHAR('R') PORT_CHAR('r') PORT_START("JOY0") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(1) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(1) PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(1) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(1) PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_START("JOY1") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(2) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(2) PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(2) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(2) PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) INPUT_PORTS_END READ8_MEMBER( fc100_state::port00_r ) { return m_keyboard[offset]->read(); } // The timer frequency controls the auto-repeat delay and speed // m_key_pressed: // 0 = no key pressed, nothing to do // 1 = key pressed, generate IRQ. // 2 = key released, generate IRQ. TIMER_DEVICE_CALLBACK_MEMBER( fc100_state::timer_k) { /* scan the keyboard */ UINT8 i; for (i = 0; i < 16; i++) { if (m_keyboard[i]->read() < 255) { // IRQ if key pressed m_key_pressed = 1; m_maincpu->set_input_line(0, HOLD_LINE); return; } } if (m_key_pressed == 1) // IRQ for key released { m_key_pressed = 2; m_maincpu->set_input_line(0, HOLD_LINE); return; } else if (m_key_pressed == 2) // release IRQ { m_key_pressed = 0; m_maincpu->set_input_line(0, CLEAR_LINE); } } //********************* AUDIO ********************************** #if 0 WRITE8_MEMBER( fc100_state::ay_port_a_w ) { m_ag = BIT(data, 4); m_gm2 = BIT(data, 6); m_gm1 = BIT(data, 3); m_gm0 = BIT(data, 3); m_css = m_ag; m_vdg->ag_w( m_ag ? ASSERT_LINE : CLEAR_LINE ); m_vdg->gm2_w( m_gm2 ? ASSERT_LINE : CLEAR_LINE ); m_vdg->gm1_w( m_gm1 ? ASSERT_LINE : CLEAR_LINE ); m_vdg->gm0_w( m_gm0 ? ASSERT_LINE : CLEAR_LINE ); m_vdg->css_w( m_css ? ASSERT_LINE : CLEAR_LINE ); m_vdg->hack_black_becomes_blue( BIT(data, 1) ); } #endif //******************** VIDEO ********************************** READ8_MEMBER( fc100_state::mc6847_videoram_r ) { if (offset == ~0) return 0xff; if ( m_ag ) { if ( m_gm2 ) { // 256 x 192 / 6KB offset = ( ( offset & 0x1fc0 ) >> 1 ) | ( offset & 0x1f ); return m_p_videoram[offset % 0xc00]; } else { // 256 x 96 / 3KB return m_p_videoram[offset % 0xc00]; } } // Standard text UINT8 data = m_p_videoram[offset]; UINT8 attr = m_p_videoram[offset+0x200]; // unknown bits 1,2,4,7 m_vdg->inv_w( BIT( attr, 0 )); m_vdg->css_w( BIT( attr, 1)); // guess m_vdg->as_w( BIT( attr, 6 )); return data; } /* F4 Character Displayer */ static const gfx_layout u53_charlayout = { 7, 15, /* 7 x 15 characters */ 256, /* 256 characters */ 1, /* 1 bits per pixel */ { 0 }, /* no bitplanes */ /* x offsets */ { 1, 2, 3, 4, 5, 6, 7 }, /* y offsets */ { 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8, 9*8, 10*8, 11*8, 12*8, 13*8, 14*8, 15*8 }, 8*16 /* every char takes 16 bytes */ }; static GFXDECODE_START( fc100 ) GFXDECODE_ENTRY( "chargen", 0x0000, u53_charlayout, 0, 1 ) GFXDECODE_END //********************** CENTRONICS PRINTER *********************************** WRITE8_MEMBER( fc100_state::port43_w ) { m_centronics->write_strobe(BIT(data, 2)); m_centronics->write_init(BIT(data, 3)); } //********************** UART/CASSETTE *********************************** WRITE8_MEMBER( fc100_state::port31_w ) { if (data == 8) m_cass->change_state(CASSETTE_MOTOR_ENABLED, CASSETTE_MASK_MOTOR); } WRITE8_MEMBER( fc100_state::port33_w ) { if (data == 0) m_cass->change_state(CASSETTE_MOTOR_DISABLED, CASSETTE_MASK_MOTOR); } WRITE_LINE_MEMBER( fc100_state::txdata_callback ) { m_cass_state = state; } WRITE_LINE_MEMBER( fc100_state::uart_clock_w ) { m_uart->write_txc(state); m_uart->write_rxc(state); } TIMER_DEVICE_CALLBACK_MEMBER( fc100_state::timer_c ) { m_cass_data[3]++; if (m_cass_state != m_cassold) { m_cass_data[3] = 0; m_cassold = m_cass_state; } if (m_cass_state) m_cass->output(BIT(m_cass_data[3], 0) ? -1.0 : +1.0); // 2400Hz else m_cass->output(BIT(m_cass_data[3], 1) ? -1.0 : +1.0); // 1200Hz } TIMER_DEVICE_CALLBACK_MEMBER( fc100_state::timer_p) { /* cassette - turn 1200/2400Hz to a bit */ m_cass_data[1]++; UINT8 cass_ws = (m_cass->input() > +0.03) ? 1 : 0; if (cass_ws != m_cass_data[0]) { m_cass_data[0] = cass_ws; m_uart->write_rxd((m_cass_data[1] < 12) ? 1 : 0); m_cass_data[1] = 0; } } //******************** MACHINE ****************************** void fc100_state::machine_start() { m_ag = 0; m_gm2 = 0; m_gm1 = 0; m_gm0 = 0; m_as = 0; m_css = 0; m_intext = 0; m_inv = 0; if (m_cart->exists()) m_maincpu->space(AS_PROGRAM).install_read_handler(0x6000, 0x6fff, read8_delegate(FUNC(generic_slot_device::read_rom),(generic_slot_device*)m_cart)); save_item(NAME(m_ag)); save_item(NAME(m_gm2)); save_item(NAME(m_gm1)); save_item(NAME(m_gm0)); save_item(NAME(m_as)); save_item(NAME(m_css)); save_item(NAME(m_intext)); save_item(NAME(m_inv)); } void fc100_state::machine_reset() { m_p_chargen = memregion("chargen")->base(); m_cass_data[0] = m_cass_data[1] = m_cass_data[2] = m_cass_data[3] = 0; m_cass_state = 0; m_cassold = 0; m_key_pressed = 0; membank("bankr")->set_entry(0); membank("bankw")->set_entry(0); } WRITE8_MEMBER( fc100_state::port60_w ) { if (m_banksw_unlocked) membank("bankr")->set_entry(offset); } WRITE8_MEMBER( fc100_state::port70_w ) { m_banksw_unlocked = (bool)offset; } DRIVER_INIT_MEMBER( fc100_state, fc100 ) { UINT8 *ram = memregion("ram")->base(); UINT8 *cgen = memregion("chargen")->base()+0x800; membank("bankr")->configure_entry(0, &cgen[0]); membank("bankw")->configure_entry(0, &ram[0]); membank("bankr")->configure_entry(1, &ram[0]); } static MACHINE_CONFIG_START( fc100, fc100_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu",Z80, XTAL_7_15909MHz/2) MCFG_CPU_PROGRAM_MAP(fc100_mem) MCFG_CPU_IO_MAP(fc100_io) /* video hardware */ MCFG_DEVICE_ADD("vdg", M5C6847P1, XTAL_7_15909MHz/3) // Clock not verified MCFG_MC6847_INPUT_CALLBACK(READ8(fc100_state, mc6847_videoram_r)) MCFG_MC6847_CHARROM_CALLBACK(fc100_state, get_char_rom) MCFG_MC6847_FIXED_MODE(MC6847_MODE_INTEXT) // other lines not connected MCFG_SCREEN_MC6847_NTSC_ADD("screen", "vdg") MCFG_GFXDECODE_ADD("gfxdecode", "f4palette", fc100) MCFG_PALETTE_ADD_MONOCHROME("f4palette") /* sound hardware */ MCFG_SPEAKER_STANDARD_MONO("mono") MCFG_SOUND_WAVE_ADD(WAVE_TAG, "cassette") MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.05) MCFG_SOUND_ADD("psg", AY8910, XTAL_7_15909MHz/3/2) /* AY-3-8910 - clock not verified */ MCFG_AY8910_PORT_A_READ_CB(IOPORT("JOY0")) MCFG_AY8910_PORT_B_READ_CB(IOPORT("JOY1")) //MCFG_AY8910_PORT_A_WRITE_CB(WRITE8(fc100_state, ay_port_a_w)) //MCFG_AY8910_PORT_B_WRITE_CB(WRITE8(fc100_state, ay_port_b_w)) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.50) /* Devices */ MCFG_CASSETTE_ADD("cassette") MCFG_CASSETTE_FORMATS(fc100_cassette_formats) MCFG_CASSETTE_DEFAULT_STATE(CASSETTE_PLAY | CASSETTE_MOTOR_DISABLED | CASSETTE_SPEAKER_ENABLED) MCFG_DEVICE_ADD("uart", I8251, 0) MCFG_I8251_TXD_HANDLER(WRITELINE(fc100_state, txdata_callback)) MCFG_DEVICE_ADD("uart_clock", CLOCK, XTAL_4_9152MHz/16/16) // gives 19200 MCFG_CLOCK_SIGNAL_HANDLER(WRITELINE(fc100_state, uart_clock_w)) MCFG_TIMER_DRIVER_ADD_PERIODIC("timer_c", fc100_state, timer_c, attotime::from_hz(4800)) // cass write MCFG_TIMER_DRIVER_ADD_PERIODIC("timer_p", fc100_state, timer_p, attotime::from_hz(40000)) // cass read MCFG_TIMER_DRIVER_ADD_PERIODIC("timer_k", fc100_state, timer_k, attotime::from_hz(300)) // keyb scan MCFG_GENERIC_CARTSLOT_ADD("cartslot", generic_plain_slot, "fc100_cart") MCFG_CENTRONICS_ADD("centronics", centronics_devices, "printer") MCFG_CENTRONICS_ACK_HANDLER(DEVWRITELINE("cent_status_in", input_buffer_device, write_bit4)) MCFG_CENTRONICS_BUSY_HANDLER(DEVWRITELINE("cent_status_in", input_buffer_device, write_bit5)) MCFG_CENTRONICS_OUTPUT_LATCH_ADD("cent_data_out", "centronics") MCFG_DEVICE_ADD("cent_status_in", INPUT_BUFFER, 0) MACHINE_CONFIG_END /* ROM definition */ ROM_START( fc100 ) ROM_REGION( 0x6000, "roms", 0 ) ROM_LOAD( "08-01.u48", 0x0000, 0x2000, CRC(24e78e75) SHA1(13121706544256a702635448ed2950a75c13f491) ) ROM_LOAD( "08-02.u49", 0x2000, 0x2000, CRC(e14fc7e9) SHA1(9c5821e65c1efe698e25668d24c36929ea4c3ad7) ) ROM_LOAD( "06-03.u50", 0x4000, 0x2000, CRC(d783c84e) SHA1(6d1bf53995e08724d5ecc24198cdda4442eb2eb9) ) ROM_REGION( 0x800, "ram", ROMREGION_ERASE00 ) ROM_REGION( 0x1000, "chargen", 0 ) ROM_LOAD( "cg-04-01.u53", 0x0000, 0x1000, CRC(2de75b7f) SHA1(464369d98cbae92ffa322ebaa4404cf5b26825f1) ) ROM_END /* Driver */ /* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */ CONS( 1982, fc100, 0, 0, fc100, fc100, fc100_state, fc100, "Goldstar", "FC-100", MACHINE_NOT_WORKING )