// license:BSD-3-Clause // copyright-holders:David Haywood /* 68307 */ #ifndef MAME_MACHINE_68307_H #define MAME_MACHINE_68307_H #pragma once #include "cpu/m68000/m68000.h" #include "machine/mc68681.h" /* trampolines so we can specify the 68681 serial configuration when adding the CPU */ #define MCFG_MC68307_SERIAL_A_TX_CALLBACK(_cb) \ downcast(*device).set_a_tx_cb(DEVCB_##_cb); #define MCFG_MC68307_SERIAL_B_TX_CALLBACK(_cb) \ downcast(*device).set_b_tx_cb(DEVCB_##_cb); // deprecated: use ipX_w() instead #define MCFG_MC68307_SERIAL_INPORT_CALLBACK(_cb) \ downcast(*device).set_inport_cb(DEVCB_##_cb); #define MCFG_MC68307_SERIAL_OUTPORT_CALLBACK(_cb) \ downcast(*device).set_outport_cb(DEVCB_##_cb); class m68307_cpu_device : public m68000_device { public: typedef device_delegate porta_read_delegate; typedef device_delegate porta_write_delegate; typedef device_delegate portb_read_delegate; typedef device_delegate portb_write_delegate; m68307_cpu_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); /* trampolines so we can specify the 68681 serial configuration when adding the CPU */ template devcb_base &set_irq_cb(Object &&cb) { return m_write_irq.set_callback(std::forward(cb)); } template devcb_base &set_a_tx_cb(Object &&cb) { return m_write_a_tx.set_callback(std::forward(cb)); } template devcb_base &set_b_tx_cb(Object &&cb) { return m_write_b_tx.set_callback(std::forward(cb)); } template devcb_base &set_inport_cb(Object &&cb) { return m_read_inport.set_callback(std::forward(cb)); } template devcb_base &set_outport_cb(Object &&cb) { return m_write_outport.set_callback(std::forward(cb)); } /* callbacks for internal ports */ void set_port_callbacks(porta_read_delegate &&porta_r, porta_write_delegate &&porta_w, portb_read_delegate &&portb_r, portb_write_delegate &&portb_w); uint16_t get_cs(offs_t address); void licr2_interrupt(); protected: class m68307_sim; class m68307_mbus; class m68307_timer; virtual void device_start() override; virtual void device_reset() override; virtual void device_add_mconfig(machine_config &config) override; virtual uint32_t execute_min_cycles() const override { return 4; } virtual uint32_t execute_max_cycles() const override { return 158; } private: void set_interrupt(int level, int vector); void timer0_interrupt(); void timer1_interrupt(); void serial_interrupt(int vector); void mbus_interrupt(); DECLARE_WRITE_LINE_MEMBER(m68307_duart_irq_handler); DECLARE_WRITE_LINE_MEMBER(m68307_duart_txa) { m_write_a_tx(state); } DECLARE_WRITE_LINE_MEMBER(m68307_duart_txb) { m_write_b_tx(state); } DECLARE_READ8_MEMBER(m68307_duart_input_r) { return m_read_inport(); } DECLARE_WRITE8_MEMBER(m68307_duart_output_w) { m_write_outport(data); } void init16_m68307(address_space &space); int calc_cs(offs_t address) const; DECLARE_READ16_MEMBER( m68307_internal_base_r ); DECLARE_WRITE16_MEMBER( m68307_internal_base_w ); DECLARE_READ16_MEMBER( m68307_internal_timer_r ); DECLARE_WRITE16_MEMBER( m68307_internal_timer_w ); DECLARE_READ16_MEMBER( m68307_internal_sim_r ); DECLARE_WRITE16_MEMBER( m68307_internal_sim_w ); DECLARE_READ8_MEMBER( m68307_internal_serial_r ); DECLARE_WRITE8_MEMBER( m68307_internal_serial_w ); DECLARE_READ8_MEMBER( m68307_internal_mbus_r ); DECLARE_WRITE8_MEMBER( m68307_internal_mbus_w ); void m68307_internal_map(address_map &map); devcb_write_line m_write_irq, m_write_a_tx, m_write_b_tx; devcb_read8 m_read_inport; devcb_write8 m_write_outport; /* 68307 peripheral modules */ m68307_sim* m_m68307SIM; m68307_mbus* m_m68307MBUS; // m68307_serial* m_m68307SERIAL; m68307_timer* m_m68307TIMER; uint16_t m_m68307_base; uint16_t m_m68307_scrhigh; uint16_t m_m68307_scrlow; int m_m68307_currentcs; porta_read_delegate m_porta_r; porta_write_delegate m_porta_w; portb_read_delegate m_portb_r; portb_write_delegate m_portb_w; required_device m_duart; }; DECLARE_DEVICE_TYPE(M68307, m68307_cpu_device) #endif // MAME_MACHINE_68307_H