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Diffstat (limited to 'src/devices/bus/vtech/memexp/memexp.h')
-rw-r--r-- | src/devices/bus/vtech/memexp/memexp.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/src/devices/bus/vtech/memexp/memexp.h b/src/devices/bus/vtech/memexp/memexp.h new file mode 100644 index 00000000000..d0de2049b5b --- /dev/null +++ b/src/devices/bus/vtech/memexp/memexp.h @@ -0,0 +1,125 @@ +// license:GPL-2.0+ +// copyright-holders:Dirk Best +/*************************************************************************** + + VTech Laser/VZ Memory Expansion Slot + + 44-pin slot + + 22 GND 23 NC + 21 +5VDC 24 A11 + 20 /IORQ 25 A12 + 19 /RD 26 A13 + 18 /NMI 27 A14 + 17 /WAIT 28 A15 + 16 /MI 29 CLK + 15 /RFSH 30 D4 + 14 D7 31 D3 + 13 D2 32 D5 + 12 A1 33 D6 + 11 A2 34 NC + 10 A3 35 A0 + 9 A4 36 D0 + 8 A5 37 D1 + 7 A6 38 /INT + 6 A7 39 /HALT + 5 A8 40 /MERQ + 4 A9 41 /WR + 3 A10 42 /NC + 2 /RESET 43 +9VDC + 1 GND 44 NC + +***************************************************************************/ + +#pragma once + +#ifndef __VTECH_MEMEXP_H__ +#define __VTECH_MEMEXP_H__ + +#include "emu.h" + + +//************************************************************************** +// INTERFACE CONFIGURATION MACROS +//************************************************************************** + +#define MCFG_MEMEXP_SLOT_ADD(_tag) \ + MCFG_DEVICE_ADD(_tag, MEMEXP_SLOT, 0) \ + MCFG_DEVICE_SLOT_INTERFACE(memexp_slot_carts, NULL, false) + +#define MCFG_MEMEXP_SLOT_INT_HANDLER(_devcb) \ + devcb = &memexp_device::set_int_handler(*device, DEVCB_##_devcb); + +#define MCFG_MEMEXP_SLOT_NMI_HANDLER(_devcb) \ + devcb = &memexp_device::set_nmi_handler(*device, DEVCB_##_devcb); + +#define MCFG_MEMEXP_SLOT_RESET_HANDLER(_devcb) \ + devcb = &memexp_device::set_reset_handler(*device, DEVCB_##_devcb); + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +class device_memexp_interface; + +class memexp_slot_device : public device_t, public device_slot_interface +{ +public: + // construction/destruction + memexp_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + virtual ~memexp_slot_device(); + + void set_program_space(address_space *program); + void set_io_space(address_space *io); + + // callbacks + template<class _Object> static devcb_base &set_int_handler(device_t &device, _Object object) + { return downcast<memexp_slot_device &>(device).m_int_handler.set_callback(object); } + + template<class _Object> static devcb_base &set_nmi_handler(device_t &device, _Object object) + { return downcast<memexp_slot_device &>(device).m_nmi_handler.set_callback(object); } + + template<class _Object> static devcb_base &set_reset_handler(device_t &device, _Object object) + { return downcast<memexp_slot_device &>(device).m_reset_handler.set_callback(object); } + + // called from cart device + DECLARE_WRITE_LINE_MEMBER( int_w ) { m_int_handler(state); } + DECLARE_WRITE_LINE_MEMBER( nmi_w ) { m_nmi_handler(state); } + DECLARE_WRITE_LINE_MEMBER( reset_w ) { m_reset_handler(state); } + + address_space *m_program; + address_space *m_io; + +protected: + // device-level overrides + virtual void device_start(); + virtual void device_reset(); + + device_memexp_interface *m_cart; + +private: + devcb_write_line m_int_handler; + devcb_write_line m_nmi_handler; + devcb_write_line m_reset_handler; +}; + +// class representing interface-specific live memexp device +class device_memexp_interface : public device_slot_card_interface +{ +public: + // construction/destruction + device_memexp_interface(const machine_config &mconfig, device_t &device); + virtual ~device_memexp_interface(); + +protected: + memexp_slot_device *m_slot; +}; + +// device type definition +extern const device_type MEMEXP_SLOT; + +// include here so drivers don't need to +#include "carts.h" + +#endif // __VTECH_MEMEXP_H__ |