mirror of
https://github.com/holub/mame
synced 2025-06-04 20:06:28 +03:00
143 lines
3.6 KiB
C++
143 lines
3.6 KiB
C++
/**********************************************************************
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Luxor ABC-55/77 keyboard 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 __ABC77__
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#define __ABC77__
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#include "emu.h"
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#include "cpu/mcs48/mcs48.h"
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#include "sound/discrete.h"
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#include "sound/speaker.h"
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//**************************************************************************
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// MACROS / CONSTANTS
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//**************************************************************************
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#define ABC77_TAG "abc77"
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//**************************************************************************
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// INTERFACE CONFIGURATION MACROS
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//**************************************************************************
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#define MCFG_ABC55_ADD(_config) \
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MCFG_DEVICE_ADD(ABC77_TAG, ABC55, 0) \
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MCFG_DEVICE_CONFIG(_config)
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#define MCFG_ABC77_ADD(_config) \
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MCFG_DEVICE_ADD(ABC77_TAG, ABC77, 0) \
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MCFG_DEVICE_CONFIG(_config)
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#define ABC77_INTERFACE(_name) \
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const abc77_interface (_name) =
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//**************************************************************************
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// TYPE DEFINITIONS
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//**************************************************************************
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// ======================> abc77_interface
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struct abc77_interface
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{
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devcb_write_line m_out_clock_cb;
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devcb_write_line m_out_keydown_cb;
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};
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// ======================> abc77_device
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class abc77_device : public device_t,
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public abc77_interface
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{
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public:
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// construction/destruction
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abc77_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock);
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abc77_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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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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virtual ioport_constructor device_input_ports() const;
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DECLARE_INPUT_CHANGED_MEMBER( keyboard_reset );
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DECLARE_READ8_MEMBER( p1_r );
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DECLARE_WRITE8_MEMBER( p2_w );
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DECLARE_READ8_MEMBER( t1_r );
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DECLARE_WRITE8_MEMBER( prog_w );
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DECLARE_WRITE8_MEMBER( j3_w );
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DECLARE_WRITE_LINE_MEMBER( rxd_w );
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DECLARE_READ_LINE_MEMBER( txd_r );
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DECLARE_WRITE_LINE_MEMBER( reset_w );
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protected:
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// device-level overrides
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virtual void device_start();
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virtual void device_reset();
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virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
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virtual void device_config_complete();
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static const device_timer_id TIMER_SERIAL = 0;
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static const device_timer_id TIMER_RESET = 1;
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inline void serial_output(int state);
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inline void serial_clock();
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inline void key_down(int state);
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devcb_resolved_write_line m_out_clock_func;
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devcb_resolved_write_line m_out_keydown_func;
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required_device<cpu_device> m_maincpu;
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required_device<device_t> m_discrete;
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int m_txd; // transmit data
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int m_keylatch; // keyboard row latch
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int m_keydown; // key down
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int m_clock; // transmit clock
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int m_hys; // hysteresis
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int m_reset; // reset
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int m_stb; // strobe
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UINT8 m_j3;
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// timers
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emu_timer *m_serial_timer;
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emu_timer *m_reset_timer;
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};
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class abc55_device : public abc77_device
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{
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public:
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// construction/destruction
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abc55_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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// optional information overrides
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virtual ioport_constructor device_input_ports() const;
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};
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// device type definition
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extern const device_type ABC77;
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extern const device_type ABC55;
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#endif
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