// license:BSD-3-Clause // copyright-holders:Miodrag Milanovic, MetalliC /*************************************************************************** Vector06c driver by Miodrag Milanovic 10/07/2008 Preliminary driver. ****************************************************************************/ #include "emu.h" #include "includes/vector06.h" #include "screen.h" READ8_MEMBER( vector06_state::vector06_8255_portb_r ) { uint8_t key = 0xff; if (BIT(m_keyboard_mask, 0)) key &= m_line[0]->read(); if (BIT(m_keyboard_mask, 1)) key &= m_line[1]->read(); if (BIT(m_keyboard_mask, 2)) key &= m_line[2]->read(); if (BIT(m_keyboard_mask, 3)) key &= m_line[3]->read(); if (BIT(m_keyboard_mask, 4)) key &= m_line[4]->read(); if (BIT(m_keyboard_mask, 5)) key &= m_line[5]->read(); if (BIT(m_keyboard_mask, 6)) key &= m_line[6]->read(); if (BIT(m_keyboard_mask, 7)) key &= m_line[7]->read(); return key; } READ8_MEMBER( vector06_state::vector06_8255_portc_r ) { uint8_t ret = m_line[8]->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); m_screen->configure(width+64, 256+64, visarea, m_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_t r = (data & 7) << 5; uint8_t g = ((data >> 3) & 7) << 5; uint8_t 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 ) { uint16_t addr = ((m_romdisk_msb & 0x7f) << 8) | m_romdisk_lsb; if ((m_romdisk_msb & 0x80) && m_cart->exists() && addr < m_cart->get_rom_size()) return m_cart->read_rom(space, addr); else return m_ay->data_r(); } WRITE8_MEMBER(vector06_state::vector06_romdisk_portb_w) { m_aylatch = data; } WRITE8_MEMBER( vector06_state::vector06_romdisk_porta_w ) { m_romdisk_lsb = data; } WRITE8_MEMBER( vector06_state::vector06_romdisk_portc_w ) { if (data & 4) m_ay->address_data_w(space, (data >> 1) & 1, m_aylatch); m_romdisk_msb = data; } INTERRUPT_GEN_MEMBER(vector06_state::vector06_interrupt) { device.execute().set_input_line(0, HOLD_LINE); } IRQ_CALLBACK_MEMBER(vector06_state::vector06_irq_callback) { // Interrupt is RST 7 return 0xff; } TIMER_CALLBACK_MEMBER(vector06_state::reset_check_callback) { uint8_t val = m_reset->read(); if (BIT(val, 0)) { m_romen = true; update_mem(); m_maincpu->reset(); } if (BIT(val, 1)) { m_romen = false; update_mem(); m_maincpu->reset(); } } WRITE8_MEMBER( vector06_state::vector06_disc_w ) { floppy_image_device *floppy = nullptr; switch (data & 0x01) { case 0: floppy = m_floppy0->get_device(); break; case 1: floppy = m_floppy1->get_device(); break; } m_fdc->set_floppy(floppy); if (floppy) { // something here needs to turn the motor on floppy->mon_w(0); floppy->ss_w(!BIT(data, 2)); } } void vector06_state::update_mem() { if ((m_rambank & 0x10) && m_stack_state) { int sentry = ((m_rambank >> 2) & 3) + 1; m_bank1->set_entry(sentry); m_bank3->set_entry(sentry); m_bank2->set_base(m_ram->pointer() + sentry * 0x10000); } else { m_bank1->set_entry(0); int ventry = 0; if (m_rambank & 0x20) ventry = (m_rambank & 3) + 1; m_bank3->set_entry(ventry); if (m_romen) m_bank2->set_base(m_region_maincpu->base() + 0x10000); else m_bank2->set_base(m_ram->pointer()); } } WRITE8_MEMBER(vector06_state::vector06_ramdisk_w) { const uint8_t oldbank = m_rambank; m_rambank = data; if (oldbank != m_rambank) update_mem(); } WRITE8_MEMBER(vector06_state::vector06_status_callback) { const bool oldstate = m_stack_state; m_stack_state = bool(data & i8080_cpu_device::STATUS_STACK); if (oldstate != m_stack_state && (m_rambank & 0x10)) update_mem(); } WRITE_LINE_MEMBER(vector06_state::speaker_w) { m_speaker->level_w(state); } void vector06_state::machine_start() { m_reset_check_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(vector06_state::reset_check_callback), this)); m_reset_check_timer->adjust(attotime::from_hz(50), 0, attotime::from_hz(50)); } void vector06_state::machine_reset() { m_stack_state = false; m_rambank = 0; m_romen = true; m_bank1->configure_entries(0, 5, m_ram->pointer(), 0x10000); for (int i = 0; i < 5; i++) m_bank3->configure_entry(i, m_ram->pointer() + 0x10000 * i + 0xa000); update_mem(); m_keyboard_mask = 0; m_color_index = 0; m_video_mode = 0; }