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// license:BSD-3-Clause
// copyright-holders:David Haywood
#ifndef MAME_MACHINE_ELAN_EU3A05COMMONSYS_H
#define MAME_MACHINE_ELAN_EU3A05COMMONSYS_H
#include "cpu/m6502/m6502.h"
#include "machine/bankdev.h"
class elan_eu3a05commonsys_device : public device_t
{
public:
elan_eu3a05commonsys_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
elan_eu3a05commonsys_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
template <typename T> void set_cpu(T &&tag) { m_cpu.set_tag(std::forward<T>(tag)); }
template <typename T> void set_addrbank(T &&tag) { m_bank.set_tag(std::forward<T>(tag)); }
void set_pal(void) { m_is_pal = true; }
void disable_timer_irq(void) { m_allow_timer_irq = false; }
void generate_custom_interrupt(int level);
virtual void map(address_map& map);
uint8_t nmi_vector_r(offs_t offset);
uint8_t irq_vector_r(offs_t offset);
void set_alt_timer() { m_whichtimer = 1; }
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
required_device<m6502_device> m_cpu;
required_device<address_map_bank_device> m_bank;
uint8_t m_intmask[2];
int m_custom_irq;
int m_custom_nmi;
uint16_t m_custom_irq_vector;
uint16_t m_custom_nmi_vector;
uint8_t m_rombank_hi;
uint8_t m_rombank_lo;
bool m_is_pal; // this is usually a jumper connected to the chip that the software can read (clocks also differ on PAL units)
bool m_allow_timer_irq;
private:
uint8_t intmask_r(offs_t offset);
void intmask_w(offs_t offset, uint8_t data);
void elan_eu3a05_rombank_w(offs_t offset, uint8_t data);
uint8_t elan_eu3a05_rombank_r(offs_t offset);
uint8_t elan_eu3a05_5003_r();
uint8_t elan_eu3a05_pal_ntsc_r();
void elan_eu3a05_500b_unk_w(uint8_t data);
uint8_t radica_5009_unk_r() { return machine().rand(); };
emu_timer *m_unk_timer;
static const device_timer_id TIMER_UNK = 0;
int m_whichtimer;
};
DECLARE_DEVICE_TYPE(ELAN_EU3A05_COMMONSYS, elan_eu3a05commonsys_device)
#endif // MAME_MACHINE_ELAN_EU3A05COMMONSYS_H
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