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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Bondwell 2 Expansion Port emulation
**********************************************************************
5V 1 26 12V
D3 2 27 12V
A1 3 28 A3
A2 4 29 A4
_CTSB 5 30 A5
_RST 6 31 A6
_MODSEL 7 32 A7
16MHZ 8 33 A8
_IORQ 9 34 A9
_RD 10 35 A10
D0 11 36 A11
D1 12 37 A12
D2 13 38 A13
A0 14 39 A14
D4 15 40 _RAM6
D5 16 41 _RAM5
D6 17 42 _RFSH
D7 18 43 _WR
DCDB 19 44 SELECT
_DTRB 20 45 _RAM2
_RTSB 21 46 _RAM3
_DSRB 22 47 _RAM4
TXDB 23 48 _SLOT
RXDB 24 49 GND
GND 25 50 5V
**********************************************************************/
#ifndef MAME_BUS_BW2_EXP_H
#define MAME_BUS_BW2_EXP_H
#pragma once
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> bw2_expansion_slot_device
class device_bw2_expansion_slot_interface;
class bw2_expansion_slot_device : public device_t,
public device_single_card_slot_interface<device_bw2_expansion_slot_interface>
{
public:
// construction/destruction
template <typename T>
bw2_expansion_slot_device(machine_config const &mconfig, char const *tag, device_t *owner, const XTAL &clock, T &&opts, char const *dflt)
: bw2_expansion_slot_device(mconfig, tag, owner, clock)
{
option_reset();
opts(*this);
set_default_option(dflt);
set_fixed(false);
}
bw2_expansion_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock);
virtual ~bw2_expansion_slot_device();
// computer interface
uint8_t cd_r(offs_t offset, uint8_t data, int ram2, int ram3, int ram4, int ram5, int ram6);
void cd_w(offs_t offset, uint8_t data, int ram2, int ram3, int ram4, int ram5, int ram6);
uint8_t slot_r(offs_t offset);
void slot_w(offs_t offset, uint8_t data);
uint8_t modsel_r(offs_t offset);
void modsel_w(offs_t offset, uint8_t data);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
device_bw2_expansion_slot_interface *m_cart;
};
// ======================> device_bw2_expansion_slot_interface
// class representing interface-specific live bw2_expansion card
class device_bw2_expansion_slot_interface : public device_interface
{
public:
// construction/destruction
virtual ~device_bw2_expansion_slot_interface();
virtual uint8_t bw2_cd_r(offs_t offset, uint8_t data, int ram2, int ram3, int ram4, int ram5, int ram6) { return data; }
virtual void bw2_cd_w(offs_t offset, uint8_t data, int ram2, int ram3, int ram4, int ram5, int ram6) { }
virtual uint8_t bw2_slot_r(offs_t offset) { return 0xff; }
virtual void bw2_slot_w(offs_t offset, uint8_t data) { }
virtual uint8_t bw2_modsel_r(offs_t offset) { return 0xff; }
virtual void bw2_modsel_w(offs_t offset, uint8_t data) { }
protected:
device_bw2_expansion_slot_interface(const machine_config &mconfig, device_t &device);
bw2_expansion_slot_device *m_slot;
};
// device type definition
DECLARE_DEVICE_TYPE(BW2_EXPANSION_SLOT, bw2_expansion_slot_device)
void bw2_expansion_cards(device_slot_interface &device);
#endif // MAME_BUS_BW2_EXP_H
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