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// license:BSD-3-Clause
// copyright-holders:hap
/******************************************************************************
*
* Chess King chess computer driver base class
*
******************************************************************************/
#pragma once
#ifndef MAME_INCLUDES_CKINGBASE_H
#define MAME_INCLUDES_CKINGBASE_H
#include "machine/timer.h"
class ckingbase_state : public driver_device
{
public:
ckingbase_state(const machine_config &mconfig, device_type type, const char *tag) :
driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_irq_on(*this, "irq_on"),
m_inp_matrix(*this, "IN.%u", 0),
m_out_x(*this, "%u.%u", 0U, 0U),
m_out_a(*this, "%u.a", 0U),
m_out_digit(*this, "digit%u", 0U),
m_display_wait(33),
m_display_maxy(1),
m_display_maxx(0)
{ }
// devices/pointers
required_device<cpu_device> m_maincpu;
optional_device<timer_device> m_irq_on;
optional_ioport_array<10> m_inp_matrix; // max 10
output_finder<0x20, 0x20> m_out_x;
output_finder<0x20> m_out_a;
output_finder<0x20> m_out_digit;
// misc common
u16 m_inp_mux; // multiplexed keypad mask
u16 m_led_select;
u16 m_led_data;
u16 read_inputs(int columns);
// periodic interrupts
template<int Line> TIMER_DEVICE_CALLBACK_MEMBER(irq_on) { m_maincpu->set_input_line(Line, ASSERT_LINE); }
template<int Line> TIMER_DEVICE_CALLBACK_MEMBER(irq_off) { m_maincpu->set_input_line(Line, CLEAR_LINE); }
// display common
int m_display_wait; // led/lamp off-delay in milliseconds (default 33ms)
int m_display_maxy; // display matrix number of rows
int m_display_maxx; // display matrix number of columns (max 31 for now)
u32 m_display_state[0x20]; // display matrix rows data (last bit is used for always-on)
u16 m_display_segmask[0x20]; // if not 0, display matrix row is a digit, mask indicates connected segments
u8 m_display_decay[0x20][0x20]; // (internal use)
TIMER_DEVICE_CALLBACK_MEMBER(display_decay_tick);
void display_update();
void set_display_size(int maxx, int maxy);
void display_matrix(int maxx, int maxy, u32 setx, u32 sety, bool update = true);
protected:
virtual void machine_start() override;
virtual void machine_reset() override;
};
INPUT_PORTS_EXTERN( cking_cb_buttons );
#endif // MAME_INCLUDES_CKINGBASE_H
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