mame/src/mess/machine/cpcexp.h
2013-01-11 07:32:46 +00:00

132 lines
3.4 KiB
C++

/*
* cpcexp.h -- Amstrad CPC Expansion port
*
* Created on: 16/07/2011
*
* Pinout from CPC6128 User's Manual
* SOUND 1 2 GND
* A15 3 4 A14
* A13 5 6 A12
* A11 7 8 A10
* A9 9 10 A8
* A7 11 12 A6
* A5 13 14 A4
* A3 15 16 A2
* A1 17 18 A0
* D7 19 20 D6
* D5 21 22 D4
* D3 23 24 D2
* D1 25 26 D0
* +5v 27 28 _MREQ
* _M1 29 30 _RFSH
* _IORQ 31 32 _RD
* _WR 33 34 _HALT
* _INT 35 36 _NMI
* _BUSR2 37 38 _BUSAK
* READY 39 40 _BUS RESET
* _RESET 41 42 _ROMEN
* ROMDIS 43 44 _RAMRD
* RAMDIS 45 46 CURSOR
* L.PEN 47 48 _EXP
* GND 49 50 CLOCK
*/
#pragma once
#ifndef CPCEXP_H_
#define CPCEXP_H_
#include "emu.h"
//**************************************************************************
// CONSTANTS
//**************************************************************************
#define CPC_EXP_SLOT_TAG "cpcexp"
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define CPC_EXPANSION_INTERFACE(_name) \
const cpc_expansion_slot_interface (_name) =
#define MCFG_CPC_EXPANSION_SLOT_ADD(_tag, _config, _slot_intf, _def_slot, _def_inp) \
MCFG_DEVICE_ADD(_tag, CPC_EXPANSION_SLOT, 0) \
MCFG_DEVICE_CONFIG(_config) \
MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, _def_inp, false)
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// expansion slot interface
struct cpc_expansion_slot_interface
{
devcb_write_line m_out_irq_cb;
devcb_write_line m_out_nmi_cb;
devcb_write_line m_out_reset_cb;
devcb_write_line m_out_romdis_cb;
devcb_write_line m_out_romen_cb;
};
// ======================> device_cpc_expansion_card_interface
// class representing interface-specific live cpc_expansion card
class device_cpc_expansion_card_interface : public device_slot_card_interface
{
public:
// construction/destruction
device_cpc_expansion_card_interface(const machine_config &mconfig, device_t &device);
virtual ~device_cpc_expansion_card_interface();
// reset
virtual void cpc_reset_w() { };
};
// ======================> cpc_expansion_slot_device
class cpc_expansion_slot_device : public device_t,
public cpc_expansion_slot_interface,
public device_slot_interface
{
public:
// construction/destruction
cpc_expansion_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
virtual ~cpc_expansion_slot_device();
DECLARE_WRITE_LINE_MEMBER( irq_w );
DECLARE_WRITE_LINE_MEMBER( nmi_w );
DECLARE_WRITE_LINE_MEMBER( reset_w );
DECLARE_WRITE_LINE_MEMBER( romdis_w );
DECLARE_WRITE_LINE_MEMBER( romen_w );
protected:
// device-level overrides
virtual void device_start();
virtual void device_reset();
virtual void device_config_complete();
devcb_resolved_write_line m_out_irq_func;
devcb_resolved_write_line m_out_nmi_func;
devcb_resolved_write_line m_out_reset_func;
devcb_resolved_write_line m_out_romdis_func;
devcb_resolved_write_line m_out_romen_func;
device_cpc_expansion_card_interface *m_card;
};
// device type definition
extern const device_type CPC_EXPANSION_SLOT;
#endif /* CPCEXP_H_ */