1 // license:BSD-3-Clause 2 // copyright-holders:Olivier Galibert 3 #ifndef MAME_CPU_M6502_M5074X_H 4 #define MAME_CPU_M6502_M5074X_H 5 6 #pragma once 7 8 #include "m740.h" 9 10 //************************************************************************** 11 // TYPE DEFINITIONS 12 //************************************************************************** 13 14 // ======================> m5074x_device 15 16 class m5074x_device : public m740_device 17 { 18 friend class m50740_device; 19 friend class m50741_device; 20 friend class m50753_device; 21 22 enum 23 { 24 M5074X_INT1_LINE = INPUT_LINE_IRQ0, 25 26 M5074X_SET_OVERFLOW = M740_SET_OVERFLOW 27 }; 28 29 enum 30 { 31 TIMER_1 = 0, 32 TIMER_2, 33 TIMER_X, 34 35 NUM_TIMERS 36 }; 37 38 public: 39 const address_space_config m_program_config; 40 read_p()41 template <std::size_t Bit> auto read_p() { return m_read_p[Bit].bind(); } write_p()42 template <std::size_t Bit> auto write_p() { return m_write_p[Bit].bind(); } 43 44 uint8_t ports_r(offs_t offset); 45 void ports_w(offs_t offset, uint8_t data); 46 uint8_t tmrirq_r(offs_t offset); 47 void tmrirq_w(offs_t offset, uint8_t data); 48 are_port_bits_output(uint8_t port,uint8_t mask)49 bool are_port_bits_output(uint8_t port, uint8_t mask) { return ((m_ddrs[port] & mask) == mask) ? true : false; } 50 51 protected: 52 // construction/destruction 53 m5074x_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock, int addrbits, address_map_constructor internal_map); 54 55 // device-level overrides 56 virtual void device_start() override; 57 virtual void device_reset() override; 58 virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override; 59 virtual void execute_set_input(int inputnum, int state) override; 60 virtual space_config_vector memory_space_config() const override; 61 62 void send_port(uint8_t offset, uint8_t data); 63 uint8_t read_port(uint8_t offset); 64 65 void recalc_irqs(); 66 void recalc_timer(int timer); 67 68 devcb_read8::array<5> m_read_p; 69 devcb_write8::array<5> m_write_p; 70 71 uint8_t m_ports[5], m_ddrs[5]; 72 uint8_t m_intctrl, m_tmrctrl; 73 uint8_t m_tmr12pre, m_tmr1, m_tmr2, m_tmrxpre, m_tmrx; 74 uint8_t m_tmr1latch, m_tmr2latch, m_tmrxlatch; 75 uint8_t m_last_all_ints; 76 77 private: 78 emu_timer *m_timers[NUM_TIMERS]; 79 }; 80 81 class m50740_device : public m5074x_device 82 { 83 public: 84 m50740_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); 85 86 protected: 87 m50740_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock); 88 89 private: 90 void m50740_map(address_map &map); 91 }; 92 93 class m50741_device : public m5074x_device 94 { 95 public: 96 m50741_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); 97 98 protected: 99 m50741_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock); 100 101 private: 102 void m50741_map(address_map &map); 103 }; 104 105 class m50753_device : public m5074x_device 106 { 107 public: 108 m50753_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); 109 110 enum 111 { 112 M50753_INT1_LINE = INPUT_LINE_IRQ0, 113 M50753_INT2_LINE = INPUT_LINE_IRQ1, 114 115 M5074X_SET_OVERFLOW = M740_SET_OVERFLOW 116 }; 117 ad_in()118 template <std::size_t Bit> auto ad_in() { return m_ad_in[Bit].bind(); } 119 120 protected: 121 m50753_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock); 122 123 // device-level overrides 124 virtual void device_start() override; 125 virtual void device_reset() override; 126 127 virtual void execute_set_input(int inputnum, int state) override; 128 129 private: 130 void m50753_map(address_map &map); 131 132 uint8_t ad_r(); 133 void ad_start_w(uint8_t data); 134 uint8_t ad_control_r(); 135 void ad_control_w(uint8_t data); 136 uint8_t pwm_control_r(); 137 void pwm_control_w(uint8_t data); 138 139 devcb_read8::array<8> m_ad_in; 140 141 uint8_t m_ad_control; 142 bool m_pwm_enabled; 143 }; 144 145 DECLARE_DEVICE_TYPE(M50740, m50740_device) 146 DECLARE_DEVICE_TYPE(M50741, m50741_device) 147 DECLARE_DEVICE_TYPE(M50753, m50753_device) 148 149 #endif // MAME_CPU_M6502_M5074X_H 150