diff options
Diffstat (limited to 'src/devices/bus/coleco/cartridge/exp.cpp')
-rw-r--r-- | src/devices/bus/coleco/cartridge/exp.cpp | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/src/devices/bus/coleco/cartridge/exp.cpp b/src/devices/bus/coleco/cartridge/exp.cpp new file mode 100644 index 00000000000..eaf3f144322 --- /dev/null +++ b/src/devices/bus/coleco/cartridge/exp.cpp @@ -0,0 +1,144 @@ +// license:BSD-3-Clause +// copyright-holders:Curt Coder +/********************************************************************** + + ColecoVision cartridge port emulation + +**********************************************************************/ + +#include "emu.h" +#include "exp.h" + + + +//************************************************************************** +// DEVICE DEFINITIONS +//************************************************************************** + +DEFINE_DEVICE_TYPE(COLECOVISION_CARTRIDGE_SLOT, colecovision_cartridge_slot_device, "coleco_cartridge_port", "ColecoVision cartridge port") + + + +//************************************************************************** +// DEVICE C64_EXPANSION CARD INTERFACE +//************************************************************************** + +//------------------------------------------------- +// device_colecovision_cartridge_interface - constructor +//------------------------------------------------- + +device_colecovision_cartridge_interface::device_colecovision_cartridge_interface(const machine_config &mconfig, device_t &device) : + device_slot_card_interface(mconfig, device), + m_rom(nullptr), + m_rom_size(0) +{ + m_slot = dynamic_cast<colecovision_cartridge_slot_device *>(device.owner()); +} + +void device_colecovision_cartridge_interface::rom_alloc(size_t size) +{ + if (m_rom == nullptr) + { + m_rom = device().machine().memory().region_alloc(":coleco_cart:rom", size, 1, ENDIANNESS_LITTLE)->base(); + m_rom_size = size; + } +} + + +//************************************************************************** +// LIVE DEVICE +//************************************************************************** + +//------------------------------------------------- +// colecovision_cartridge_slot_device - constructor +//------------------------------------------------- + +colecovision_cartridge_slot_device::colecovision_cartridge_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : + device_t(mconfig, COLECOVISION_CARTRIDGE_SLOT, tag, owner, clock), + device_slot_interface(mconfig, *this), + device_image_interface(mconfig, *this), + m_card(nullptr) +{ +} + + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void colecovision_cartridge_slot_device::device_start() +{ + m_card = dynamic_cast<device_colecovision_cartridge_interface *>(get_card_device()); +} + + +//------------------------------------------------- +// call_load - +//------------------------------------------------- + +image_init_result colecovision_cartridge_slot_device::call_load() +{ + if (m_card) + { + size_t size = !loaded_through_softlist() ? length() : get_software_region_length("rom"); + m_card->rom_alloc(size); + + if (!loaded_through_softlist()) + { + fread(m_card->m_rom, size); + } + else + { + // TODO 8000/a000/c000/e000 + memcpy(m_card->m_rom, get_software_region("rom"), size); + } + } + + return image_init_result::PASS; +} + + +//------------------------------------------------- +// get_default_card_software - +//------------------------------------------------- + +std::string colecovision_cartridge_slot_device::get_default_card_software(get_default_card_software_hook &hook) const +{ + if (hook.image_file()) + { + uint32_t length = hook.image_file()->size(); + if (length == 0x100000 || length == 0x200000) + return software_get_default_slot("xin1"); + } + return software_get_default_slot("standard"); +} + + +//------------------------------------------------- +// bd_r - cartridge data read +//------------------------------------------------- + +uint8_t colecovision_cartridge_slot_device::bd_r(offs_t offset, uint8_t data, int _8000, int _a000, int _c000, int _e000) +{ + if (m_card != nullptr) + { + data = m_card->bd_r(offset, data, _8000, _a000, _c000, _e000); + } + + return data; +} + + +//------------------------------------------------- +// SLOT_INTERFACE( colecovision_cartridges ) +//------------------------------------------------- + +#include "std.h" +#include "xin1.h" + +void colecovision_cartridges(device_slot_interface &device) +{ + // the following need ROMs from the software list + device.option_add_internal("standard", COLECOVISION_STANDARD); + device.option_add_internal("xin1", COLECOVISION_XIN1); +} |