/*************************************************************************** Vector06c driver by Miodrag Milanovic 10/07/2008 Preliminary driver. ****************************************************************************/ #include "includes/vector06.h" READ8_MEMBER( vector06_state::vector06_8255_portb_r ) { UINT8 key = 0xff; if (BIT(m_keyboard_mask, 0)) key &= ioport("LINE0")->read(); if (BIT(m_keyboard_mask, 1)) key &= ioport("LINE1")->read(); if (BIT(m_keyboard_mask, 2)) key &= ioport("LINE2")->read(); if (BIT(m_keyboard_mask, 3)) key &= ioport("LINE3")->read(); if (BIT(m_keyboard_mask, 4)) key &= ioport("LINE4")->read(); if (BIT(m_keyboard_mask, 5)) key &= ioport("LINE5")->read(); if (BIT(m_keyboard_mask, 6)) key &= ioport("LINE6")->read(); if (BIT(m_keyboard_mask, 7)) key &= ioport("LINE7")->read(); return key; } READ8_MEMBER( vector06_state::vector06_8255_portc_r ) { UINT8 ret = ioport("LINE8")->read(); if (m_cassette->input() > 0) ret |= 0x10; return ret; } WRITE8_MEMBER( vector06_state::vector06_8255_porta_w ) { m_keyboard_mask = data ^ 0xff; } void vector06_state::vector06_set_video_mode(int width) { rectangle visarea(0, width+64-1, 0, 256+64-1); machine().first_screen()->configure(width+64, 256+64, visarea, machine().first_screen()->frame_period().attoseconds); } WRITE8_MEMBER( vector06_state::vector06_8255_portb_w ) { m_color_index = data & 0x0f; if ((data & 0x10) != m_video_mode) { m_video_mode = data & 0x10; vector06_set_video_mode((m_video_mode==0x10) ? 512 : 256); } } WRITE8_MEMBER( vector06_state::vector06_color_set ) { UINT8 r = (data & 7) << 5; UINT8 g = ((data >> 3) & 7) << 5; UINT8 b = ((data >>6) & 3) << 6; m_palette->set_pen_color( m_color_index, rgb_t(r,g,b) ); } READ8_MEMBER( vector06_state::vector06_romdisk_portb_r ) { UINT8 *romdisk = memregion("maincpu")->base() + 0x18000; UINT16 addr = (m_romdisk_msb | m_romdisk_lsb) & 0x7fff; return romdisk[addr]; } WRITE8_MEMBER( vector06_state::vector06_romdisk_porta_w ) { m_romdisk_lsb = data; } WRITE8_MEMBER( vector06_state::vector06_romdisk_portc_w ) { m_romdisk_msb = data << 8; } READ8_MEMBER( vector06_state::vector06_8255_1_r ) { return m_ppi->read(space, offset^3); } WRITE8_MEMBER( vector06_state::vector06_8255_1_w ) { m_ppi->write(space, offset^3, data); } READ8_MEMBER( vector06_state::vector06_8255_2_r ) { return m_ppi2->read(space, offset^3); } WRITE8_MEMBER( vector06_state::vector06_8255_2_w ) { m_ppi2->write(space, offset^3, data); } INTERRUPT_GEN_MEMBER(vector06_state::vector06_interrupt) { m_vblank_state++; if (m_vblank_state>1) m_vblank_state=0; device.execute().set_input_line(0,m_vblank_state ? HOLD_LINE : CLEAR_LINE); } IRQ_CALLBACK_MEMBER(vector06_state::vector06_irq_callback) { // Interupt is RST 7 return 0xff; } TIMER_CALLBACK_MEMBER(vector06_state::reset_check_callback) { UINT8 val = ioport("RESET")->read(); if (BIT(val, 0)) { membank("bank1")->set_base(memregion("maincpu")->base() + 0x10000); m_maincpu->reset(); } if (BIT(val, 1)) { membank("bank1")->set_base(m_ram->pointer() + 0x0000); m_maincpu->reset(); } } WRITE8_MEMBER( vector06_state::vector06_disc_w ) { // something here needs to turn the motor on m_fdc->set_side (BIT(data, 2) ^ 1); m_fdc->set_drive(BIT(data, 0)); } void vector06_state::machine_start() { machine().scheduler().timer_pulse(attotime::from_hz(50), timer_expired_delegate(FUNC(vector06_state::reset_check_callback),this)); } void vector06_state::machine_reset() { address_space &space = m_maincpu->space(AS_PROGRAM); space.install_read_bank (0x0000, 0x7fff, "bank1"); space.install_write_bank(0x0000, 0x7fff, "bank2"); space.install_read_bank (0x8000, 0xffff, "bank3"); space.install_write_bank(0x8000, 0xffff, "bank4"); membank("bank1")->set_base(memregion("maincpu")->base() + 0x10000); membank("bank2")->set_base(m_ram->pointer() + 0x0000); membank("bank3")->set_base(m_ram->pointer() + 0x8000); membank("bank4")->set_base(m_ram->pointer() + 0x8000); m_keyboard_mask = 0; m_color_index = 0; m_video_mode = 0; }