diff options
Diffstat (limited to 'src/devices/bus/vtech/memexp/memexp.h')
-rw-r--r-- | src/devices/bus/vtech/memexp/memexp.h | 52 |
1 files changed, 41 insertions, 11 deletions
diff --git a/src/devices/bus/vtech/memexp/memexp.h b/src/devices/bus/vtech/memexp/memexp.h index 28c7453be4a..a4ab93e92f7 100644 --- a/src/devices/bus/vtech/memexp/memexp.h +++ b/src/devices/bus/vtech/memexp/memexp.h @@ -1,5 +1,5 @@ -// license:GPL-2.0+ -// copyright-holders:Dirk Best +// license: GPL-2.0+ +// copyright-holders: Dirk Best /*************************************************************************** VTech Laser/VZ Memory Expansion Slot @@ -36,9 +36,12 @@ #pragma once +#include "machine/bankdev.h" + // include here so drivers don't need to #include "carts.h" + //************************************************************************** // TYPE DEFINITIONS //************************************************************************** @@ -61,8 +64,8 @@ public: vtech_memexp_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); virtual ~vtech_memexp_slot_device(); - template <typename T> void set_program_space(T &&tag, int spacenum) { m_program.set_tag(std::forward<T>(tag), spacenum); } - template <typename T> void set_io_space(T &&tag, int spacenum) { m_io.set_tag(std::forward<T>(tag), spacenum); } + template <typename T> void set_memspace(T &&tag, int spacenum) { m_memspace.set_tag(std::forward<T>(tag), spacenum); } + template <typename T> void set_iospace(T &&tag, int spacenum) { m_iospace.set_tag(std::forward<T>(tag), spacenum); } // callbacks auto int_handler() { return m_int_handler.bind(); } @@ -76,16 +79,17 @@ public: protected: // device-level overrides - virtual void device_config_complete() override; virtual void device_start() override; - required_address_space m_program; - required_address_space m_io; - private: + required_address_space m_memspace; + required_address_space m_iospace; + devcb_write_line m_int_handler; devcb_write_line m_nmi_handler; devcb_write_line m_reset_handler; + + device_vtech_memexp_interface *m_module; }; // class representing interface-specific live memexp device @@ -96,13 +100,39 @@ public: device_vtech_memexp_interface(const machine_config &mconfig, device_t &device); virtual ~device_vtech_memexp_interface(); -protected: - address_space &program_space() { return *m_slot->m_program; } - address_space &io_space() { return *m_slot->m_io; } + virtual uint8_t mreq_r(offs_t offset) { return 0xff; } + virtual void mreq_w(offs_t offset, uint8_t data) { } + virtual uint8_t iorq_r(offs_t offset) { return 0xff; } + virtual void iorq_w(offs_t offset, uint8_t data) { } +protected: vtech_memexp_slot_device *m_slot; }; +// base memory expansion device +class vtech_memexp_device : public device_t, public device_vtech_memexp_interface +{ +public: + // construction/destruction + vtech_memexp_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock); + + // from host + virtual uint8_t mreq_r(offs_t offset) override; + virtual void mreq_w(offs_t offset, uint8_t data) override; + virtual uint8_t iorq_r(offs_t offset) override; + virtual void iorq_w(offs_t offset, uint8_t data) override; + +protected: + virtual void device_add_mconfig(machine_config &config) override; + virtual void device_start() override; + + virtual void mem_map(address_map &map) { }; + virtual void io_map(address_map &map) { }; + + required_device<address_map_bank_device> m_mem; + required_device<address_map_bank_device> m_io; +}; + // device type definition DECLARE_DEVICE_TYPE(VTECH_MEMEXP_SLOT, vtech_memexp_slot_device) |