// license:BSD-3-Clause // copyright-holders:Wilbert Pol #include "emu.h" #include "halnote.h" namespace { class msx_cart_halnote_device : public device_t, public msx_cart_interface { public: msx_cart_halnote_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) : device_t(mconfig, MSX_CART_HALNOTE, tag, owner, clock) , msx_cart_interface(mconfig, *this) , m_rombank(*this, "rombank%u", 0U) , m_view{ {*this, "view0"}, {*this, "view1"} } { } virtual std::error_condition initialize_cartridge(std::string &message) override; protected: // device_t implementation virtual void device_start() override { } virtual void device_reset() override ATTR_COLD; private: static constexpr u8 BANK_MASK = (0x100000 / 0x2000) - 1; template void bank_w(u8 data); void bank0_w(u8 data); void bank1_w(u8 data); void bank2_w(u8 data); void bank3_w(u8 data); template void bank_small_w(u8 data); memory_bank_array_creator<6> m_rombank; memory_view m_view[2]; }; void msx_cart_halnote_device::device_reset() { for (int i = 0; i < 6; i++) m_rombank[i]->set_entry(0); m_view[0].disable(); m_view[1].select(0); } std::error_condition msx_cart_halnote_device::initialize_cartridge(std::string &message) { if (!cart_rom_region()) { message = "msx_cart_halnote_device: Required region 'rom' was not found."; return image_error::INTERNAL; } if (!cart_sram_region()) { message = "msx_cart_halnote_device: Required region 'sram' was not found."; return image_error::INTERNAL; } if (cart_rom_region()->bytes() != 0x100000) { message = "msx_cart_halnote_device: Region 'rom' has unsupported size."; return image_error::INVALIDLENGTH; } if (cart_sram_region()->bytes() < 0x4000) { message = "msx_cart_halnote_device: Region 'sram' has unsupported size."; return image_error::BADSOFTWARE; } for (int i = 0; i < 4; i++) { m_rombank[i]->configure_entries(0, 0x80, cart_rom_region()->base(), 0x2000); } m_rombank[4]->configure_entries(0, 0x100, cart_rom_region()->base() + 0x80000, 0x800); m_rombank[5]->configure_entries(0, 0x100, cart_rom_region()->base() + 0x80000, 0x800); page(0)->install_view(0x0000, 0x3fff, m_view[0]); m_view[0][0]; m_view[0][1].install_ram(0x0000, 0x3fff, cart_sram_region()->base()); page(1)->install_read_bank(0x4000, 0x5fff, m_rombank[0]); page(1)->install_write_handler(0x4fff, 0x4fff, emu::rw_delegate(*this, FUNC(msx_cart_halnote_device::bank_w<0>))); page(1)->install_view(0x6000, 0x7fff, m_view[1]); m_view[1][0].install_read_bank(0x6000, 0x7fff, m_rombank[1]); m_view[1][0].install_write_handler(0x6fff, 0x6fff, emu::rw_delegate(*this, FUNC(msx_cart_halnote_device::bank_w<1>))); m_view[1][0].install_write_handler(0x77ff, 0x77ff, emu::rw_delegate(*this, FUNC(msx_cart_halnote_device::bank_small_w<4>))); m_view[1][0].install_write_handler(0x7fff, 0x7fff, emu::rw_delegate(*this, FUNC(msx_cart_halnote_device::bank_small_w<5>))); m_view[1][1].install_read_bank(0x6000, 0x6fff, m_rombank[1]); m_view[1][1].install_write_handler(0x6fff, 0x6fff, emu::rw_delegate(*this, FUNC(msx_cart_halnote_device::bank_w<1>))); m_view[1][1].install_read_bank(0x7000, 0x77ff, m_rombank[4]); m_view[1][1].install_write_handler(0x77ff, 0x77ff, emu::rw_delegate(*this, FUNC(msx_cart_halnote_device::bank_small_w<4>))); m_view[1][1].install_read_bank(0x7800, 0x7fff, m_rombank[5]); m_view[1][1].install_write_handler(0x7fff, 0x7fff, emu::rw_delegate(*this, FUNC(msx_cart_halnote_device::bank_small_w<5>))); page(2)->install_read_bank(0x8000, 0x9fff, m_rombank[2]); page(2)->install_write_handler(0x8fff, 0x8fff, emu::rw_delegate(*this, FUNC(msx_cart_halnote_device::bank_w<2>))); page(2)->install_read_bank(0xa000, 0xbfff, m_rombank[3]); page(2)->install_write_handler(0xafff, 0xafff, emu::rw_delegate(*this, FUNC(msx_cart_halnote_device::bank_w<3>))); return std::error_condition(); } template void msx_cart_halnote_device::bank_w(u8 data) { m_rombank[Bank]->set_entry(data & 0x7f); if (Bank == 0 || Bank == 3) m_view[Bank ? 1 : 0].select(BIT(data, 7) ? 1 : 0); } template void msx_cart_halnote_device::bank_small_w(u8 data) { m_rombank[Bank]->set_entry(data); } } // anonymous namespace DEFINE_DEVICE_TYPE_PRIVATE(MSX_CART_HALNOTE, msx_cart_interface, msx_cart_halnote_device, "msx_cart_halnote", "MSX Cartridge - Halnote")