// license:BSD-3-Clause // copyright-holders:Curt Coder /********************************************************************** Dela 7x8K EPROM cartridge emulation Copyright MESS Team. Visit http://mamedev.org for licensing and usage restrictions. **********************************************************************/ #include "dela_ep7x8.h" //************************************************************************** // DEVICE DEFINITIONS //************************************************************************** const device_type C64_DELA_EP7X8 = &device_creator; //------------------------------------------------- // MACHINE_CONFIG_FRAGMENT( c64_dela_ep7x8 ) //------------------------------------------------- static MACHINE_CONFIG_FRAGMENT( c64_dela_ep7x8 ) MCFG_GENERIC_SOCKET_ADD("rom1", generic_linear_slot, NULL) MCFG_GENERIC_EXTENSIONS("bin,rom") MCFG_GENERIC_SOCKET_ADD("rom2", generic_linear_slot, NULL) MCFG_GENERIC_EXTENSIONS("bin,rom") MCFG_GENERIC_SOCKET_ADD("rom3", generic_linear_slot, NULL) MCFG_GENERIC_EXTENSIONS("bin,rom") MCFG_GENERIC_SOCKET_ADD("rom4", generic_linear_slot, NULL) MCFG_GENERIC_EXTENSIONS("bin,rom") MCFG_GENERIC_SOCKET_ADD("rom5", generic_linear_slot, NULL) MCFG_GENERIC_EXTENSIONS("bin,rom") MCFG_GENERIC_SOCKET_ADD("rom6", generic_linear_slot, NULL) MCFG_GENERIC_EXTENSIONS("bin,rom") MCFG_GENERIC_SOCKET_ADD("rom7", generic_linear_slot, NULL) MCFG_GENERIC_EXTENSIONS("bin,rom") MACHINE_CONFIG_END //------------------------------------------------- // machine_config_additions - device-specific // machine configurations //------------------------------------------------- machine_config_constructor c64_dela_ep7x8_cartridge_device::device_mconfig_additions() const { return MACHINE_CONFIG_NAME( c64_dela_ep7x8 ); } //************************************************************************** // LIVE DEVICE //************************************************************************** //------------------------------------------------- // c64_dela_ep7x8_cartridge_device - constructor //------------------------------------------------- c64_dela_ep7x8_cartridge_device::c64_dela_ep7x8_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : device_t(mconfig, C64_DELA_EP7X8, "C64 Dela 7x8KB EPROM cartridge", tag, owner, clock, "ep7x8", __FILE__), device_c64_expansion_card_interface(mconfig, *this), m_eprom1(*this, "rom1"), m_eprom2(*this, "rom2"), m_eprom3(*this, "rom3"), m_eprom4(*this, "rom4"), m_eprom5(*this, "rom5"), m_eprom6(*this, "rom6"), m_eprom7(*this, "rom7") { } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void c64_dela_ep7x8_cartridge_device::device_start() { // state saving save_item(NAME(m_bank)); } //------------------------------------------------- // device_reset - device-specific reset //------------------------------------------------- void c64_dela_ep7x8_cartridge_device::device_reset() { m_bank = 0xfe; m_exrom = 0; } //------------------------------------------------- // c64_cd_r - cartridge data read //------------------------------------------------- UINT8 c64_dela_ep7x8_cartridge_device::c64_cd_r(address_space &space, offs_t offset, UINT8 data, int sphi2, int ba, int roml, int romh, int io1, int io2) { if (!roml) { offs_t addr = offset & 0x1fff; if (!BIT(m_bank, 0)) data |= m_roml[addr]; if (!BIT(m_bank, 1)) data |= m_eprom1->read_rom(space, addr); if (!BIT(m_bank, 2)) data |= m_eprom2->read_rom(space, addr); if (!BIT(m_bank, 3)) data |= m_eprom3->read_rom(space, addr); if (!BIT(m_bank, 4)) data |= m_eprom4->read_rom(space, addr); if (!BIT(m_bank, 5)) data |= m_eprom5->read_rom(space, addr); if (!BIT(m_bank, 6)) data |= m_eprom6->read_rom(space, addr); if (!BIT(m_bank, 7)) data |= m_eprom7->read_rom(space, addr); } return data; } //------------------------------------------------- // c64_cd_w - cartridge data write //------------------------------------------------- void c64_dela_ep7x8_cartridge_device::c64_cd_w(address_space &space, offs_t offset, UINT8 data, int sphi2, int ba, int roml, int romh, int io1, int io2) { if (!io1) { m_bank = data; m_exrom = (data == 0xff); } }