// license:BSD-3-Clause // copyright-holders:Angelo Salese /*************************************************************************** Namco C148 - CPU Bus Manager ***************************************************************************/ #ifndef MAME_MACHINE_NAMCO_C148_H #define MAME_MACHINE_NAMCO_C148_H #pragma once //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> namco_c148_device class namco_c148_device : public device_t { public: // construction/destruction template namco_c148_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, T &&hostcpu, bool is_master) : namco_c148_device(mconfig, tag, owner, clock) { set_hostcpu(std::forward(hostcpu), is_master); } namco_c148_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); void map(address_map &map); template void set_hostcpu(T &&tag, bool is_master) { m_hostcpu.set_tag(std::forward(tag)); m_hostcpu_master = is_master; } template void link_c148_device(T &&tag) { m_linked_c148.set_tag(std::forward(tag)); } auto out_ext1_callback() { return m_out_ext1_cb.bind(); } auto out_ext2_callback() { return m_out_ext2_cb.bind(); } uint8_t vblank_irq_level_r(); void vblank_irq_level_w(uint8_t data); uint16_t vblank_irq_ack_r(); void vblank_irq_ack_w(uint16_t data); uint8_t pos_irq_level_r(); void pos_irq_level_w(uint8_t data); uint16_t pos_irq_ack_r(); void pos_irq_ack_w(uint16_t data); uint8_t cpu_irq_level_r(); void cpu_irq_level_w(uint8_t data); uint16_t cpu_irq_ack_r(); void cpu_irq_ack_w(uint16_t data); uint8_t ex_irq_level_r(); void ex_irq_level_w(uint8_t data); uint16_t ex_irq_ack_r(); void ex_irq_ack_w(uint16_t data); uint8_t sci_irq_level_r(); void sci_irq_level_w(uint8_t data); uint16_t sci_irq_ack_r(); void sci_irq_ack_w(uint16_t data); uint8_t ext_posirq_line_r(); void ext_posirq_line_w(uint8_t data); void cpu_irq_assert_w(uint16_t data); uint8_t bus_ctrl_r(); void bus_ctrl_w(uint8_t data); uint8_t ext_r(); void ext1_w(uint8_t data); void ext2_w(uint8_t data); void vblank_irq_trigger(); void pos_irq_trigger(); void ex_irq_trigger(); void sci_irq_trigger(); uint8_t get_posirq_line(); protected: void cpu_irq_trigger(); // device-level overrides virtual void device_validity_check(validity_checker &valid) const override; virtual void device_start() override; virtual void device_reset() override; private: devcb_write8 m_out_ext1_cb; devcb_write8 m_out_ext2_cb; required_device m_hostcpu; // reference to the host cpu optional_device m_linked_c148; // reference to linked master/slave c148 bool m_hostcpu_master; // define if host cpu is master struct{ uint8_t cpu; uint8_t ex; uint8_t sci; uint8_t pos; uint8_t vblank; }m_irqlevel; uint8_t m_posirq_line; uint8_t m_bus_reg; void flush_irq_acks(); }; // device type definition DECLARE_DEVICE_TYPE(NAMCO_C148, namco_c148_device) #endif // MAME_MACHINE_NAMCO_C148_H