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// license:BSD-3-Clause
// copyright-holders:Devin Acker
/***************************************************************************
gew12.h
Yamaha GEW12 (65c02-based)
***************************************************************************/
#ifndef MAME_CPU_M6502_GEW12_H
#define MAME_CPU_M6502_GEW12_H
#include "m6502mcu.h"
#include "w65c02.h"
class gew12_device : public m6502_mcu_device_base<w65c02_device>, public device_mixer_interface {
public:
gew12_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
template<offs_t Num> auto port_in_cb() { return m_in_cb[Num].bind(); }
template<offs_t Num> auto port_out_cb() { return m_out_cb[Num].bind(); }
protected:
virtual void device_add_mconfig(machine_config &config) override ATTR_COLD;
virtual void device_start() override ATTR_COLD;
virtual void device_reset() override ATTR_COLD;
virtual void internal_update(u64 current_time) override;
using m6502_mcu_device_base<w65c02_device>::internal_update;
enum
{
INTERNAL_IRQ_TIMER0,
INTERNAL_IRQ_TIMER1,
INTERNAL_IRQ_MIDI_TX,
INTERNAL_IRQ_MIDI_RX
};
u8 irq_stat_r();
void irq_en_w(u8 data);
void timer_stat_w(u8 data);
u8 timer_count_r(offs_t offset);
void timer_count_w(offs_t offset, u8 data);
u64 timer_update(int num, u64 current_time);
u8 port_r(offs_t offset);
void port_w(offs_t offset, u8 data);
u8 port_ddr_r(offs_t offset);
void port_ddr_w(offs_t offset, u8 data);
template<int Num>
void internal_irq(int state) { internal_irq(Num, state); }
void internal_irq(int num, int state);
void irq_update();
void internal_map(address_map &map) ATTR_COLD;
u8 m_irq_pending, m_irq_enable;
u16 m_timer_count[2];
u64 m_timer_base[2];
devcb_read8::array<6> m_in_cb;
devcb_write8::array<6> m_out_cb;
u8 m_port_data[6];
u8 m_port_ddr[6];
required_memory_region m_rom;
required_memory_bank_array<2> m_bank;
u8 m_bank_mask;
};
DECLARE_DEVICE_TYPE(GEW12, gew12_device)
#endif // MAME_CPU_M6502_GEW12_H
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