/********************************************************************** Triton QD TDOS cartridge emulation Copyright MESS Team. Visit http://mamedev.org for licensing and usage restrictions. **********************************************************************/ /* PCB Layout ---------- XM-2206-A (top) XM-2205-A (bottom) |===========================| | CN4 | | | | ULA | | | | 6.5MHz | | | | SSDA | | LS175 | | LS367 | | CN3 | |=========|||||||||=========| ||||||||| |=============|||||||||============| | CN2 | | LS00 LS02 LS138 | |=======| | |=| LS245 ROM | |=| | |=| | |=| CN1| |=| | |=| | |=| | |=| SW1 | |==========================================| ROM - Hitachi HN482764G 8Kx8 EPROM "TDOS 1.2" ULA - Ferranti ULA5RB073E1 XZ-2085-1 custom (?) SSDA - Motorola MC68A52P SSDA CN1 - C64 expansion connector (pass-thru) CN2,3 - 19x1 flat ribbon cable to other PCB CN4 - 9 wires to 3" drive SW1 - cartridge on/off switch */ #include "c64_tdos.h" //************************************************************************** // MACROS/CONSTANTS //************************************************************************** #define MC68A52P_TAG "mc6852" //************************************************************************** // DEVICE DEFINITIONS //************************************************************************** const device_type C64_TDOS = &device_creator; //------------------------------------------------- // MC6852_INTERFACE( ssda_intf ) //------------------------------------------------- static MC6852_INTERFACE( ssda_intf ) { 0, 0, DEVCB_NULL, DEVCB_NULL, DEVCB_NULL, DEVCB_NULL, DEVCB_NULL, DEVCB_NULL, DEVCB_NULL }; //------------------------------------------------- // MACHINE_CONFIG_FRAGMENT( c64_multiscreen ) //------------------------------------------------- static MACHINE_CONFIG_FRAGMENT( c64_tdos ) MCFG_MC6852_ADD(MC68A52P_TAG, XTAL_6_5MHz, ssda_intf) MCFG_C64_PASSTHRU_EXPANSION_SLOT_ADD() MACHINE_CONFIG_END //------------------------------------------------- // machine_config_additions - device-specific // machine configurations //------------------------------------------------- machine_config_constructor c64_tdos_cartridge_device::device_mconfig_additions() const { return MACHINE_CONFIG_NAME( c64_tdos ); } //************************************************************************** // LIVE DEVICE //************************************************************************** //------------------------------------------------- // c64_tdos_cartridge_device - constructor //------------------------------------------------- c64_tdos_cartridge_device::c64_tdos_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : device_t(mconfig, C64_TDOS, "C64 TDOS cartridge", tag, owner, clock, "c64_tdos", __FILE__), device_c64_expansion_card_interface(mconfig, *this), m_ssda(*this, MC68A52P_TAG), m_exp(*this, C64_EXPANSION_SLOT_TAG) { } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void c64_tdos_cartridge_device::device_start() { } //------------------------------------------------- // device_reset - device-specific reset //------------------------------------------------- void c64_tdos_cartridge_device::device_reset() { } //------------------------------------------------- // c64_cd_r - cartridge data read //------------------------------------------------- UINT8 c64_tdos_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) { data = m_exp->cd_r(space, offset, data, sphi2, ba, roml, romh, io1, io2); // TODO return data; } //------------------------------------------------- // c64_cd_w - cartridge data write //------------------------------------------------- void c64_tdos_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) { // TODO m_exp->cd_w(space, offset, data, sphi2, ba, roml, romh, io1, io2); } //------------------------------------------------- // c64_game_r - GAME read //------------------------------------------------- int c64_tdos_cartridge_device::c64_game_r(offs_t offset, int sphi2, int ba, int rw, int hiram) { return m_exp->game_r(offset, sphi2, ba, rw, hiram); } //------------------------------------------------- // c64_exrom_r - EXROM read //------------------------------------------------- int c64_tdos_cartridge_device::c64_exrom_r(offs_t offset, int sphi2, int ba, int rw, int hiram) { return m_exp->exrom_r(offset, sphi2, ba, rw, hiram); }