void nes_state::machine_reset()
{
/* Reset the mapper variables. Will also mark the char-gen ram as dirty */
if (m_disk_expansion && m_cartslot && !m_cartslot->m_cart)
m_ppu->set_hblank_callback(ppu2c0x_hblank_delegate(FUNC(nes_state::fds_irq),this));
else if (m_cartslot)
m_cartslot->pcb_reset();
/* Reset the serial input ports */
m_in_0.shift = 0;
m_in_1.shift = 0;
m_maincpu->reset();
}
void nes_state::machine_reset()
{
/* Reset the mapper variables. Will also mark the char-gen ram as dirty */
if (m_disk_expansion && m_cartslot && !m_cartslot->m_cart)
m_ppu->set_hblank_callback(ppu2c0x_hblank_delegate(FUNC(nes_state::fds_irq),this));
else if (m_cartslot)
m_cartslot->pcb_reset();
m_maincpu->reset();
memset(m_pad_latch, 0, sizeof(m_pad_latch));
memset(m_zapper_latch, 0, sizeof(m_zapper_latch));
m_paddle_latch = 0;
m_paddle_btn_latch = 0;
}
void nes_state::machine_start()
{
for (int i = 0; i < 9; i++)
{
char str[7];
sprintf(str, "FCKEY%i", i);
m_io_fckey[i] = ioport(str);
}
for (int i = 0; i < 13; i++)
{
char str[9];
sprintf(str, "SUBKEY%i", i);
m_io_subkey[i] = ioport(str);
}
for (int i = 0; i < 4; i++)
{
char str[8];
sprintf(str, "PAD%i", i + 1);
m_io_pad[i] = ioport(str);
sprintf(str, "MAH%i", i);
m_io_mahjong[i] = ioport(str);
sprintf(str, "FT_COL%i", i);
m_io_ftrainer[i] = ioport(str);
}
m_io_ctrlsel = ioport("CTRLSEL");
m_io_exp = ioport("EXP");
m_io_paddle = ioport("PADDLE");
m_io_paddle_btn = ioport("PADDLE_BUTTON");
m_io_cc_left = ioport("CC_LEFT");
m_io_cc_right = ioport("CC_RIGHT");
m_io_zapper1_t = ioport("ZAPPER1_T");
m_io_zapper1_x = ioport("ZAPPER1_X");
m_io_zapper1_y = ioport("ZAPPER1_Y");
m_io_zapper2_t = ioport("ZAPPER2_T");
m_io_zapper2_x = ioport("ZAPPER2_X");
m_io_zapper2_y = ioport("ZAPPER2_Y");
m_io_powerpad[0] = ioport("POWERPAD1");
m_io_powerpad[1] = ioport("POWERPAD2");
address_space &space = m_maincpu->space(AS_PROGRAM);
// CIRAM (Character Internal RAM)
// NES has 2KB of internal RAM which can be used to fill the 4x1KB banks of PPU RAM at $2000-$2fff
// Line A10 is exposed to the carts, so that games can change CIRAM mapping in PPU (we emulate this with the set_nt_mirroring
// function). CIRAM can also be disabled by the game (if e.g. VROM or cart RAM has to be used in PPU...
m_ciram = auto_alloc_array(machine(), UINT8, 0x800);
// other pointers got set in the loading routine, because they 'belong' to the cart itself
if (m_cartslot && m_cartslot->m_cart)
{
// Set up memory handlers
space.install_read_handler(0x4100, 0x5fff, read8_delegate(FUNC(nes_cart_slot_device::read_l), (nes_cart_slot_device *)m_cartslot));
space.install_write_handler(0x4100, 0x5fff, write8_delegate(FUNC(nes_cart_slot_device::write_l), (nes_cart_slot_device *)m_cartslot));
space.install_read_handler(0x6000, 0x7fff, read8_delegate(FUNC(nes_cart_slot_device::read_m), (nes_cart_slot_device *)m_cartslot));
space.install_write_handler(0x6000, 0x7fff, write8_delegate(FUNC(nes_cart_slot_device::write_m), (nes_cart_slot_device *)m_cartslot));
space.install_read_bank(0x8000, 0x9fff, "prg0");
space.install_read_bank(0xa000, 0xbfff, "prg1");
space.install_read_bank(0xc000, 0xdfff, "prg2");
space.install_read_bank(0xe000, 0xffff, "prg3");
space.install_write_handler(0x8000, 0xffff, write8_delegate(FUNC(nes_cart_slot_device::write_h), (nes_cart_slot_device *)m_cartslot));
m_cartslot->pcb_start(m_ciram);
m_cartslot->m_cart->pcb_reg_postload(machine());
m_ppu->space(AS_PROGRAM).install_readwrite_handler(0, 0x1fff, read8_delegate(FUNC(device_nes_cart_interface::chr_r),m_cartslot->m_cart), write8_delegate(FUNC(device_nes_cart_interface::chr_w),m_cartslot->m_cart));
m_ppu->space(AS_PROGRAM).install_readwrite_handler(0x2000, 0x3eff, read8_delegate(FUNC(device_nes_cart_interface::nt_r),m_cartslot->m_cart), write8_delegate(FUNC(device_nes_cart_interface::nt_w),m_cartslot->m_cart));
m_ppu->set_scanline_callback(ppu2c0x_scanline_delegate(FUNC(device_nes_cart_interface::scanline_irq),m_cartslot->m_cart));
m_ppu->set_hblank_callback(ppu2c0x_hblank_delegate(FUNC(device_nes_cart_interface::hblank_irq),m_cartslot->m_cart));
m_ppu->set_latch(ppu2c0x_latch_delegate(FUNC(device_nes_cart_interface::ppu_latch),m_cartslot->m_cart));
// install additional handlers (read_h, read_ex, write_ex)
if (m_cartslot->get_pcb_id() == STD_EXROM || m_cartslot->get_pcb_id() == STD_NROM368
|| m_cartslot->get_pcb_id() == GG_NROM || m_cartslot->get_pcb_id() == CAMERICA_ALADDIN || m_cartslot->get_pcb_id() == SUNSOFT_DCS
|| m_cartslot->get_pcb_id() == BANDAI_DATACH || m_cartslot->get_pcb_id() == BANDAI_KARAOKE || m_cartslot->get_pcb_id() == BTL_2A03_PURITANS || m_cartslot->get_pcb_id() == AVE_MAXI15
|| m_cartslot->get_pcb_id() == KAISER_KS7022 || m_cartslot->get_pcb_id() == KAISER_KS7031 || m_cartslot->get_pcb_id() == BMC_VT5201
|| m_cartslot->get_pcb_id() == UNL_LH32 || m_cartslot->get_pcb_id() == UNL_LH10 || m_cartslot->get_pcb_id() == UNL_2708
|| m_cartslot->get_pcb_id() == UNL_43272 || m_cartslot->get_pcb_id() == BMC_G63IN1 || m_cartslot->get_pcb_id() == BMC_8157
|| m_cartslot->get_pcb_id() == BMC_GOLD150 || m_cartslot->get_pcb_id() == BMC_CH001
|| m_cartslot->get_pcb_id() == BMC_70IN1 || m_cartslot->get_pcb_id() == BMC_800IN1)
{
logerror("read_h installed!\n");
space.install_read_handler(0x8000, 0xffff, read8_delegate(FUNC(nes_cart_slot_device::read_h), (nes_cart_slot_device *)m_cartslot));
}
if (m_cartslot->get_pcb_id() == BTL_SMB2JB || m_cartslot->get_pcb_id() == UNL_AC08 || m_cartslot->get_pcb_id() == UNL_SMB2J || m_cartslot->get_pcb_id() == BTL_09034A)
{
logerror("write_ex installed!\n");
space.install_write_handler(0x4020, 0x40ff, write8_delegate(FUNC(nes_cart_slot_device::write_ex), (nes_cart_slot_device *)m_cartslot));
}
if (m_cartslot->get_pcb_id() == KAISER_KS7017 || m_cartslot->get_pcb_id() == UNL_603_5052)
{
logerror("write_ex & read_ex installed!\n");
space.install_read_handler(0x4020, 0x40ff, read8_delegate(FUNC(nes_cart_slot_device::read_ex), (nes_cart_slot_device *)m_cartslot));
space.install_write_handler(0x4020, 0x40ff, write8_delegate(FUNC(nes_cart_slot_device::write_ex), (nes_cart_slot_device *)m_cartslot));
}
}
else if (m_disk_expansion) // if there is Disk Expansion and no cart has been loaded, setup memory accordingly
{
m_ppu->space(AS_PROGRAM).install_readwrite_handler(0, 0x1fff, read8_delegate(FUNC(nes_state::fds_chr_r),this), write8_delegate(FUNC(nes_state::fds_chr_w),this));
m_ppu->space(AS_PROGRAM).install_readwrite_handler(0x2000, 0x3eff, read8_delegate(FUNC(nes_state::fds_nt_r),this), write8_delegate(FUNC(nes_state::fds_nt_w),this));
if (!m_fds_ram)
m_fds_ram = auto_alloc_array(machine(), UINT8, 0x8000);
if (!m_vram)
m_vram = auto_alloc_array(machine(), UINT8, 0x2000);
space.install_read_handler(0x4030, 0x403f, read8_delegate(FUNC(nes_state::nes_fds_r),this));
space.install_read_bank(0x6000, 0xdfff, "fdsram");
space.install_read_bank(0xe000, 0xffff, "bank1");
space.install_write_handler(0x4020, 0x402f, write8_delegate(FUNC(nes_state::nes_fds_w),this));
space.install_write_bank(0x6000, 0xdfff, "fdsram");
membank("bank1")->set_base(machine().root_device().memregion("maincpu")->base() + 0xe000);
membank("fdsram")->set_base(m_fds_ram);
}
state_register();
}
void nes_state::machine_start()
{
address_space &space = m_maincpu->space(AS_PROGRAM);
// CIRAM (Character Internal RAM)
// NES has 2KB of internal RAM which can be used to fill the 4x1KB banks of PPU RAM at $2000-$2fff
// Line A10 is exposed to the carts, so that games can change CIRAM mapping in PPU (we emulate this with the set_nt_mirroring
// function). CIRAM can also be disabled by the game (if e.g. VROM or cart RAM has to be used in PPU...
m_ciram = auto_alloc_array(machine(), UINT8, 0x800);
// other pointers got set in the loading routine, because they 'belong' to the cart itself
m_io_disksel = ioport("FLIPDISK");
if (m_cartslot && m_cartslot->m_cart)
{
// Set up memory handlers
space.install_read_handler(0x4100, 0x5fff, read8_delegate(FUNC(nes_cart_slot_device::read_l), (nes_cart_slot_device *)m_cartslot));
space.install_write_handler(0x4100, 0x5fff, write8_delegate(FUNC(nes_cart_slot_device::write_l), (nes_cart_slot_device *)m_cartslot));
space.install_read_handler(0x6000, 0x7fff, read8_delegate(FUNC(nes_cart_slot_device::read_m), (nes_cart_slot_device *)m_cartslot));
space.install_write_handler(0x6000, 0x7fff, write8_delegate(FUNC(nes_cart_slot_device::write_m), (nes_cart_slot_device *)m_cartslot));
space.install_read_bank(0x8000, 0x9fff, "prg0");
space.install_read_bank(0xa000, 0xbfff, "prg1");
space.install_read_bank(0xc000, 0xdfff, "prg2");
space.install_read_bank(0xe000, 0xffff, "prg3");
space.install_write_handler(0x8000, 0xffff, write8_delegate(FUNC(nes_cart_slot_device::write_h), (nes_cart_slot_device *)m_cartslot));
m_ppu->space(AS_PROGRAM).install_readwrite_handler(0, 0x1fff, read8_delegate(FUNC(device_nes_cart_interface::chr_r),m_cartslot->m_cart), write8_delegate(FUNC(device_nes_cart_interface::chr_w),m_cartslot->m_cart));
m_ppu->space(AS_PROGRAM).install_readwrite_handler(0x2000, 0x3eff, read8_delegate(FUNC(device_nes_cart_interface::nt_r),m_cartslot->m_cart), write8_delegate(FUNC(device_nes_cart_interface::nt_w),m_cartslot->m_cart));
m_ppu->set_scanline_callback(ppu2c0x_scanline_delegate(FUNC(device_nes_cart_interface::scanline_irq),m_cartslot->m_cart));
m_ppu->set_hblank_callback(ppu2c0x_hblank_delegate(FUNC(device_nes_cart_interface::hblank_irq),m_cartslot->m_cart));
m_ppu->set_latch(ppu2c0x_latch_delegate(FUNC(device_nes_cart_interface::ppu_latch),m_cartslot->m_cart));
// install additional handlers (read_h, read_ex, write_ex)
if (m_cartslot->get_pcb_id() == STD_EXROM || m_cartslot->get_pcb_id() == STD_NROM368 || m_cartslot->get_pcb_id() == STD_DISKSYS
|| m_cartslot->get_pcb_id() == GG_NROM || m_cartslot->get_pcb_id() == CAMERICA_ALADDIN || m_cartslot->get_pcb_id() == SUNSOFT_DCS
|| m_cartslot->get_pcb_id() == BANDAI_DATACH || m_cartslot->get_pcb_id() == BANDAI_KARAOKE || m_cartslot->get_pcb_id() == BTL_2A03_PURITANS || m_cartslot->get_pcb_id() == AVE_MAXI15
|| m_cartslot->get_pcb_id() == KAISER_KS7022 || m_cartslot->get_pcb_id() == KAISER_KS7031 || m_cartslot->get_pcb_id() == BMC_VT5201
|| m_cartslot->get_pcb_id() == UNL_LH32 || m_cartslot->get_pcb_id() == UNL_LH10 || m_cartslot->get_pcb_id() == UNL_2708
|| m_cartslot->get_pcb_id() == UNL_43272 || m_cartslot->get_pcb_id() == BMC_G63IN1 || m_cartslot->get_pcb_id() == BMC_8157
|| m_cartslot->get_pcb_id() == BMC_GOLD150 || m_cartslot->get_pcb_id() == BMC_CH001
|| m_cartslot->get_pcb_id() == BMC_70IN1 || m_cartslot->get_pcb_id() == BMC_800IN1)
{
logerror("read_h installed!\n");
space.install_read_handler(0x8000, 0xffff, read8_delegate(FUNC(nes_cart_slot_device::read_h), (nes_cart_slot_device *)m_cartslot));
}
if (m_cartslot->get_pcb_id() == BTL_SMB2JB || m_cartslot->get_pcb_id() == UNL_AC08 || m_cartslot->get_pcb_id() == UNL_SMB2J || m_cartslot->get_pcb_id() == BTL_09034A)
{
logerror("write_ex installed!\n");
space.install_write_handler(0x4020, 0x40ff, write8_delegate(FUNC(nes_cart_slot_device::write_ex), (nes_cart_slot_device *)m_cartslot));
}
if (m_cartslot->get_pcb_id() == KAISER_KS7017 || m_cartslot->get_pcb_id() == UNL_603_5052 || m_cartslot->get_pcb_id() == STD_DISKSYS)
{
logerror("write_ex & read_ex installed!\n");
space.install_read_handler(0x4020, 0x40ff, read8_delegate(FUNC(nes_cart_slot_device::read_ex), (nes_cart_slot_device *)m_cartslot));
space.install_write_handler(0x4020, 0x40ff, write8_delegate(FUNC(nes_cart_slot_device::write_ex), (nes_cart_slot_device *)m_cartslot));
}
m_cartslot->pcb_start(m_ciram);
m_cartslot->m_cart->pcb_reg_postload(machine());
}
// register saves
save_item(NAME(m_last_frame_flip));
save_pointer(NAME(m_ciram), 0x800);
}