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Diffstat (limited to 'src/devices/bus/coleco/exp.h')
-rw-r--r-- | src/devices/bus/coleco/exp.h | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/src/devices/bus/coleco/exp.h b/src/devices/bus/coleco/exp.h new file mode 100644 index 00000000000..a4bf724c6e7 --- /dev/null +++ b/src/devices/bus/coleco/exp.h @@ -0,0 +1,121 @@ +// license:BSD-3-Clause +// copyright-holders:Curt Coder +/********************************************************************** + + ColecoVision cartridge port emulation + +********************************************************************** + + D2 1 2 /C000 + D1 3 4 D3 + D0 5 6 D4 + A0 7 8 D5 + A1 9 10 D6 + A2 11 12 D7 + SHLD 13 14 A11 + A3 15 16 A10 + A4 17 18 /8000 + A13 19 20 A14 + A5 21 22 /A000 + A6 23 24 A12 + A7 25 26 A9 + /E000 27 28 A8 + GND 29 30 +5V + + +**********************************************************************/ + +#ifndef MAME_BUS_COLECO_EXP_H +#define MAME_BUS_COLECO_EXP_H + +#pragma once + +#include "softlist_dev.h" + + +//************************************************************************** +// CONSTANTS +//************************************************************************** + +#define COLECOVISION_CARTRIDGE_SLOT_TAG "cartslot" + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +// ======================> colecovision_cartridge_slot_device + +class device_colecovision_cartridge_interface; + +class colecovision_cartridge_slot_device : public device_t, + public device_slot_interface, + public device_image_interface +{ +public: + // construction/destruction + template <typename T> + colecovision_cartridge_slot_device(machine_config const &mconfig, char const *tag, device_t *owner, T &&opts, char const *dflt) + : colecovision_cartridge_slot_device(mconfig, tag, owner, (uint32_t)0) + { + option_reset(); + opts(*this); + set_default_option(dflt); + set_fixed(false); + } + colecovision_cartridge_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); + + // computer interface + uint8_t bd_r(address_space &space, offs_t offset, uint8_t data, int _8000, int _a000, int _c000, int _e000); + +protected: + // device-level overrides + virtual void device_start() override; + + // image-level overrides + virtual image_init_result call_load() override; + virtual const software_list_loader &get_software_list_loader() const override { return rom_software_list_loader::instance(); } + + virtual iodevice_t image_type() const override { return IO_CARTSLOT; } + + virtual bool is_readable() const override { return 1; } + virtual bool is_writeable() const override { return 0; } + virtual bool is_creatable() const override { return 0; } + virtual bool must_be_loaded() const override { return 0; } + virtual bool is_reset_on_load() const override { return 1; } + virtual const char *image_interface() const override { return "coleco_cart"; } + virtual const char *file_extensions() const override { return "rom,col,bin"; } + + // slot interface overrides + virtual std::string get_default_card_software(get_default_card_software_hook &hook) const override; + + device_colecovision_cartridge_interface *m_card; +}; + + +// ======================> device_colecovision_cartridge_interface + +class device_colecovision_cartridge_interface : public device_slot_card_interface +{ + friend class colecovision_cartridge_slot_device; + +public: + virtual uint8_t bd_r(address_space &space, offs_t offset, uint8_t data, int _8000, int _a000, int _c000, int _e000) { return 0xff; } + + void rom_alloc(size_t size); + +protected: + // construction/destruction + device_colecovision_cartridge_interface(const machine_config &mconfig, device_t &device); + + uint8_t *m_rom; + size_t m_rom_size; + + colecovision_cartridge_slot_device *m_slot; +}; + +// device type definition +DECLARE_DEVICE_TYPE(COLECOVISION_CARTRIDGE_SLOT, colecovision_cartridge_slot_device) + +void colecovision_cartridges(device_slot_interface &device); + +#endif // MAME_BUS_COLECO_EXP_H |