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// license:BSD-3-Clause
// copyright-holders:Nigel Barnes
/**********************************************************************
ATPL Sidewise ROM/RAM Expansion board
https://www.retro-kit.co.uk/page.cfm/content/ATPL-Sidewise-Sideways-ROM-board/
ATPL Sidewise+
http://chrisacorns.computinghistory.org.uk/8bit_Upgrades/ATPL_Sidewise+.html
**********************************************************************/
#ifndef MAME_BUS_BBC_INTERNAL_ATPL_H
#define MAME_BUS_BBC_INTERNAL_ATPL_H
#include "internal.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
class bbc_atplsw_device :
public device_t,
public device_bbc_internal_interface
{
public:
// construction/destruction
bbc_atplsw_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
// device-level overrides
virtual void device_start() override;
// optional information overrides
virtual void device_add_mconfig(machine_config &config) override;
virtual ioport_constructor device_input_ports() const override;
virtual bool overrides_rom() override { return true; }
virtual void romsel_w(offs_t offset, uint8_t data) override { m_romsel = data & 0x0f; }
virtual uint8_t paged_r(offs_t offset) override;
virtual void paged_w(offs_t offset, uint8_t data) override;
private:
optional_device_array<bbc_romslot_device, 16> m_rom;
required_ioport m_wp;
uint8_t m_romsel;
};
class bbc_atplswp_device :
public device_t,
public device_bbc_internal_interface
{
public:
// construction/destruction
bbc_atplswp_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
// device-level overrides
virtual void device_start() override;
// optional information overrides
virtual void device_add_mconfig(machine_config &config) override;
virtual bool overrides_rom() override { return true; }
virtual void romsel_w(offs_t offset, uint8_t data) override { m_romsel = data & 0x0f; }
virtual uint8_t paged_r(offs_t offset) override;
virtual void paged_w(offs_t offset, uint8_t data) override;
private:
optional_device_array<bbc_romslot_device, 16> m_rom;
uint8_t m_romsel;
};
// device type definition
DECLARE_DEVICE_TYPE(BBC_ATPLSW, bbc_atplsw_device);
DECLARE_DEVICE_TYPE(BBC_ATPLSWP, bbc_atplswp_device);
#endif /* MAME_BUS_BBC_INTERNAL_ATPL_H */
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