/********************************************************************** COMX-35 Expansion Slot emulation Copyright MESS Team. Visit http://mamedev.org for licensing and usage restrictions. ********************************************************************** GND 1 A GND NC 2 B DS +5V 3 C V+ D0 4 D D1 D2 5 E D3 D4 6 F D5 D6 7 H D7 _DP 8 J Q _CLEAR 9 K _MRD TPA 10 L N0 N1 11 M N2 _RAS 12 N _INT _WAIT 13 P CLOCK SC1 14 R SC0 _EF4 15 S _CASE TPB 16 T _A15 _MWR 17 U A14 MA7 18 V _A14 MA5 19 W MA6 MA4 20 X MA3 MA2 21 Y _EXTROM MA1 22 Z MA0 **********************************************************************/ #pragma once #ifndef __COMX35_EXPANSION_SLOT__ #define __COMX35_EXPANSION_SLOT__ #include "emu.h" //************************************************************************** // CONSTANTS //************************************************************************** #define COMX_EXPANSION_BUS_TAG "comxexp" //************************************************************************** // INTERFACE CONFIGURATION MACROS //************************************************************************** #define COMX_EXPANSION_INTERFACE(_name) \ const comx_expansion_slot_interface (_name) = #define MCFG_COMX_EXPANSION_SLOT_ADD(_tag, _config, _slot_intf, _def_slot, _def_inp) \ MCFG_DEVICE_ADD(_tag, COMX_EXPANSION_SLOT, 0) \ MCFG_DEVICE_CONFIG(_config) \ MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, _def_inp, false) //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> comx_expansion_slot_interface struct comx_expansion_slot_interface { devcb_write_line m_out_int_cb; devcb_write_line m_out_wait_cb; devcb_write_line m_out_clear_cb; }; // ======================> comx_expansion_slot_device class device_comx_expansion_card_interface; class comx_expansion_slot_device : public device_t, public comx_expansion_slot_interface, public device_slot_interface { public: // construction/destruction comx_expansion_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); virtual ~comx_expansion_slot_device(); UINT8 mrd_r(address_space &space, offs_t offset, int *extrom); void mwr_w(address_space &space, offs_t offset, UINT8 data); UINT8 io_r(address_space &space, offs_t offset); void io_w(address_space &space, offs_t offset, UINT8 data); DECLARE_READ_LINE_MEMBER( ef4_r ); DECLARE_WRITE_LINE_MEMBER( ds_w ); DECLARE_WRITE_LINE_MEMBER( q_w ); DECLARE_WRITE_LINE_MEMBER( int_w ); DECLARE_WRITE_LINE_MEMBER( wait_w ); DECLARE_WRITE_LINE_MEMBER( clear_w ); UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); protected: // device-level overrides virtual void device_start(); virtual void device_reset(); virtual void device_config_complete(); devcb_resolved_write_line m_out_int_func; devcb_resolved_write_line m_out_wait_func; devcb_resolved_write_line m_out_clear_func; device_comx_expansion_card_interface *m_card; }; // ======================> device_comx_expansion_card_interface // class representing interface-specific live comx_expansion card class device_comx_expansion_card_interface : public device_slot_card_interface { friend class comx_expansion_slot_device; public: // construction/destruction device_comx_expansion_card_interface(const machine_config &mconfig, device_t &device); virtual ~device_comx_expansion_card_interface(); protected: // signals virtual int comx_ef4_r() { return CLEAR_LINE; } virtual void comx_ds_w(int state) { m_ds = state; }; virtual void comx_q_w(int state) { }; // memory access virtual UINT8 comx_mrd_r(address_space &space, offs_t offset, int *extrom) { return 0; }; virtual void comx_mwr_w(address_space &space, offs_t offset, UINT8 data) { }; // I/O access virtual UINT8 comx_io_r(address_space &space, offs_t offset) { return 0; }; virtual void comx_io_w(address_space &space, offs_t offset, UINT8 data) { }; comx_expansion_slot_device *m_slot; int m_ds; }; // device type definition extern const device_type COMX_EXPANSION_SLOT; #endif