#include "emu.h" #include "korean.h" const device_type MSX_CART_KOREAN_80IN1 = &device_creator; const device_type MSX_CART_KOREAN_90IN1 = &device_creator; const device_type MSX_CART_KOREAN_126IN1 = &device_creator; msx_cart_korean_80in1::msx_cart_korean_80in1(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : device_t(mconfig, MSX_CART_KOREAN_80IN1, "MSX Cartridge - Korean 80-in-1", tag, owner, clock, "msx_cart_korean_80in1", __FILE__) , msx_cart_interface(mconfig, *this) , m_bank_mask(0) { for (int i = 0; i < 4; i++) { m_selected_bank[i] = i; m_bank_base[i] = NULL; } } void msx_cart_korean_80in1::device_start() { save_item(NAME(m_selected_bank)); machine().save().register_postload(save_prepost_delegate(FUNC(msx_cart_korean_80in1::restore_banks), this)); } void msx_cart_korean_80in1::setup_bank(UINT8 bank) { m_bank_base[bank] = get_rom_base() + ( m_selected_bank[bank] & m_bank_mask ) * 0x2000; } void msx_cart_korean_80in1::restore_banks() { for (int i = 0; i < 4; i++) { setup_bank(i); } } void msx_cart_korean_80in1::device_reset() { for (int i = 0; i < 4; i++) { m_selected_bank[i] = i; } } void msx_cart_korean_80in1::initialize_cartridge() { UINT32 size = get_rom_size(); if ( size > 256 * 0x2000 ) { fatalerror("korean_80in1: ROM is too big\n"); } UINT16 banks = size / 0x2000; if (size != banks * 0x2000 || (~(banks - 1) % banks)) { fatalerror("korean_80in1: Invalid ROM size\n"); } m_bank_mask = banks - 1; restore_banks(); } READ8_MEMBER(msx_cart_korean_80in1::read_cart) { if (offset >= 0x4000 && offset < 0xc000) { return m_bank_base[(offset - 0x4000) >> 13][offset & 0x1fff]; } return 0xff; } WRITE8_MEMBER(msx_cart_korean_80in1::write_cart) { if (offset >= 0x4000 && offset < 0x4004) { UINT8 bank = offset & 3; m_selected_bank[bank] = data; setup_bank(bank); } } msx_cart_korean_90in1::msx_cart_korean_90in1(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : device_t(mconfig, MSX_CART_KOREAN_90IN1, "MSX Cartridge - Korean 90-in-1", tag, owner, clock, "msx_cart_korean_90in1", __FILE__) , msx_cart_interface(mconfig, *this) , m_bank_mask(0) , m_selected_bank(0) { for (int i = 0; i < 4; i++) { m_bank_base[i] = NULL; } } void msx_cart_korean_90in1::device_start() { save_item(NAME(m_selected_bank)); machine().save().register_postload(save_prepost_delegate(FUNC(msx_cart_korean_90in1::restore_banks), this)); // Install IO read/write handlers address_space &space = machine().device("maincpu")->space(AS_IO); space.install_write_handler(0x77, 0x77, write8_delegate(FUNC(msx_cart_korean_90in1::banking), this)); } void msx_cart_korean_90in1::restore_banks() { UINT8 *base = get_rom_base(); switch (m_selected_bank & 0xc0) { case 0x80: base += (m_selected_bank & 0x3e & m_bank_mask) * 0x4000; m_bank_base[0] = base; m_bank_base[1] = base + 0x2000; m_bank_base[2] = base + 0x4000; m_bank_base[3] = base + 0x6000; break; case 0xc0: base += (m_selected_bank & m_bank_mask) * 0x4000; m_bank_base[0] = base; m_bank_base[1] = base + 0x2000; m_bank_base[2] = base + 0x2000; m_bank_base[3] = base; break; default: base += (m_selected_bank & m_bank_mask) * 0x4000; m_bank_base[0] = base; m_bank_base[1] = base + 0x2000; m_bank_base[2] = base; m_bank_base[3] = base + 0x2000; break; } } void msx_cart_korean_90in1::device_reset() { m_selected_bank = 0; } void msx_cart_korean_90in1::initialize_cartridge() { UINT32 size = get_rom_size(); if ( size > 64 * 0x4000 ) { fatalerror("korean_90in1: ROM is too big\n"); } UINT16 banks = size / 0x4000; if (size != banks * 0x4000 || (~(banks - 1) % banks)) { fatalerror("korean_90in1: Invalid ROM size\n"); } m_bank_mask = banks - 1; restore_banks(); } READ8_MEMBER(msx_cart_korean_90in1::read_cart) { if (offset >= 0x4000 && offset < 0xc000) { return m_bank_base[(offset - 0x4000) >> 13][offset & 0x1fff]; } return 0xff; } WRITE8_MEMBER(msx_cart_korean_90in1::banking) { m_selected_bank = data; restore_banks(); } msx_cart_korean_126in1::msx_cart_korean_126in1(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : device_t(mconfig, MSX_CART_KOREAN_126IN1, "MSX Cartridge - Korean 126-in-1", tag, owner, clock, "msx_cart_korean_126in1", __FILE__) , msx_cart_interface(mconfig, *this) , m_bank_mask(0) { for (int i = 0; i < 2; i++) { m_selected_bank[i] = i; m_bank_base[i] = NULL; } } void msx_cart_korean_126in1::device_start() { save_item(NAME(m_selected_bank)); machine().save().register_postload(save_prepost_delegate(FUNC(msx_cart_korean_126in1::restore_banks), this)); } void msx_cart_korean_126in1::setup_bank(UINT8 bank) { m_bank_base[bank] = get_rom_base() + ( m_selected_bank[bank] & m_bank_mask ) * 0x4000; } void msx_cart_korean_126in1::restore_banks() { for (int i = 0; i < 2; i++) { setup_bank(i); } } void msx_cart_korean_126in1::device_reset() { for (int i = 0; i < 2; i++) { m_selected_bank[i] = i; } } void msx_cart_korean_126in1::initialize_cartridge() { UINT32 size = get_rom_size(); if ( size > 256 * 0x4000 ) { fatalerror("korean_126in1: ROM is too big\n"); } UINT16 banks = size / 0x4000; if (size != banks * 0x4000 || (~(banks - 1) % banks)) { fatalerror("korean_126in1: Invalid ROM size\n"); } m_bank_mask = banks - 1; restore_banks(); } READ8_MEMBER(msx_cart_korean_126in1::read_cart) { if (offset >= 0x4000 && offset < 0xc000) { return m_bank_base[offset >> 15][offset & 0x3fff]; } return 0xff; } WRITE8_MEMBER(msx_cart_korean_126in1::write_cart) { if (offset >= 0x4000 && offset < 0x4002) { UINT8 bank = offset & 1; m_selected_bank[bank] = data; setup_bank(bank); } }