mirror of
https://github.com/holub/mame
synced 2025-04-16 13:34:55 +03:00
76 lines
2.3 KiB
C++
76 lines
2.3 KiB
C++
// license:BSD-3-Clause
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// copyright-holders:Curt Coder
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/**********************************************************************
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CST Q+4 emulation
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Copyright MESS Team.
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Visit http://mamedev.org for licensing and usage restrictions.
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**********************************************************************/
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#pragma once
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#ifndef __CST_Q_PLUS4__
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#define __CST_Q_PLUS4__
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#include "exp.h"
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#include "machine/6821pia.h"
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//**************************************************************************
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// TYPE DEFINITIONS
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//**************************************************************************
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// ======================> cst_q_plus4_t
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class cst_q_plus4_t : public device_t,
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public device_ql_expansion_card_interface
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{
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public:
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// construction/destruction
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cst_q_plus4_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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cst_q_plus4_t(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source, int ram_size);
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// optional information overrides
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virtual const rom_entry *device_rom_region() const;
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virtual machine_config_constructor device_mconfig_additions() const;
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DECLARE_WRITE_LINE_MEMBER( exp1_extintl_w ) { m_exp1_extinl = state; update_extintl(); }
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DECLARE_WRITE_LINE_MEMBER( exp2_extintl_w ) { m_exp2_extinl = state; update_extintl(); }
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DECLARE_WRITE_LINE_MEMBER( exp3_extintl_w ) { m_exp3_extinl = state; update_extintl(); }
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DECLARE_WRITE_LINE_MEMBER( exp4_extintl_w ) { m_exp4_extinl = state; update_extintl(); }
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protected:
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// device-level overrides
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virtual void device_start();
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// device_ql_expansion_card_interface overrides
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virtual UINT8 read(address_space &space, offs_t offset, UINT8 data);
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virtual void write(address_space &space, offs_t offset, UINT8 data);
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private:
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void update_extintl() { m_slot->extintl_w(m_exp1_extinl || m_exp2_extinl || m_exp3_extinl || m_exp4_extinl); }
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required_device<ql_expansion_slot_t> m_exp1;
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required_device<ql_expansion_slot_t> m_exp2;
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required_device<ql_expansion_slot_t> m_exp3;
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required_device<ql_expansion_slot_t> m_exp4;
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required_memory_region m_rom;
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int m_exp1_extinl;
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int m_exp2_extinl;
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int m_exp3_extinl;
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int m_exp4_extinl;
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};
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// device type definition
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extern const device_type CST_Q_PLUS4;
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#endif
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