// license:BSD-3-Clause // copyright-holders:Olivier Galibert #ifndef MAME_CPU_M6502_M5074X_H #define MAME_CPU_M6502_M5074X_H #pragma once #include "m740.h" //************************************************************************** // CONSTANTS //************************************************************************** // internal ROM region #define M5074X_INTERNAL_ROM_REGION "internal" #define M5074X_INTERNAL_ROM(_tag) (_tag ":" M5074X_INTERNAL_ROM_REGION) //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> m5074x_device class m5074x_device : public m740_device { friend class m50740_device; friend class m50741_device; enum { M5074X_INT1_LINE = INPUT_LINE_IRQ0, M5074X_SET_OVERFLOW = M740_SET_OVERFLOW }; enum { TIMER_1 = 0, TIMER_2, TIMER_X, NUM_TIMERS }; public: const address_space_config m_program_config; template auto read_p() { return m_read_p[Bit].bind(); } template auto write_p() { return m_write_p[Bit].bind(); } uint8_t ports_r(offs_t offset); void ports_w(offs_t offset, uint8_t data); uint8_t tmrirq_r(offs_t offset); void tmrirq_w(offs_t offset, uint8_t data); bool are_port_bits_output(uint8_t port, uint8_t mask) { return ((m_ddrs[port] & mask) == mask) ? true : false; } protected: // construction/destruction m5074x_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock, address_map_constructor internal_map); // 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; virtual void execute_set_input(int inputnum, int state) override; virtual space_config_vector memory_space_config() const override; void send_port(uint8_t offset, uint8_t data); uint8_t read_port(uint8_t offset); void recalc_irqs(); void recalc_timer(int timer); devcb_read8::array<4> m_read_p; devcb_write8::array<4> m_write_p; uint8_t m_ports[6], m_ddrs[6]; uint8_t m_intctrl, m_tmrctrl; uint8_t m_tmr12pre, m_tmr1, m_tmr2, m_tmrxpre, m_tmrx; uint8_t m_tmr1latch, m_tmr2latch, m_tmrxlatch; uint8_t m_last_all_ints; private: emu_timer *m_timers[NUM_TIMERS]; }; class m50740_device : public m5074x_device { public: m50740_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); void m50740_map(address_map &map); protected: m50740_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock); }; class m50741_device : public m5074x_device { public: m50741_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); void m50741_map(address_map &map); protected: m50741_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock); }; DECLARE_DEVICE_TYPE(M50740, m50740_device) DECLARE_DEVICE_TYPE(M50741, m50741_device) #endif // MAME_CPU_M6502_M5074X_H