// license:BSD-3-Clause // copyright-holders:Olivier Galibert /*************************************************************************** i8x9x.h MCS96, 8x9x branch, the original version ***************************************************************************/ #ifndef MAME_CPU_MCS96_I8X9X_H #define MAME_CPU_MCS96_I8X9X_H #include "mcs96.h" class i8x9x_device : public mcs96_device { public: enum { A0, A1, A2, A3, A4, A5, A6, A7, SERIAL, P0, P1, P2 }; void serial_w(uint8_t val); protected: i8x9x_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock); virtual void device_start() override; virtual void device_reset() override; virtual space_config_vector memory_space_config() const override; virtual util::disasm_interface *create_disassembler() override; virtual void do_exec_full() override; virtual void do_exec_partial() override; virtual void internal_update(uint64_t current_time) override; virtual void io_w8(uint8_t adr, uint8_t data) override; virtual void io_w16(uint8_t adr, uint16_t data) override; virtual uint8_t io_r8(uint8_t adr) override; virtual uint16_t io_r16(uint8_t adr) override; private: enum { IRQ_TIMER = 0x01, IRQ_AD = 0x02, IRQ_HSI = 0x04, IRQ_HSO = 0x08, IRQ_HSI0 = 0x10, IRQ_SOFT = 0x20, IRQ_SERIAL = 0x40, IRQ_EXTINT = 0x80 }; struct hso_cam_entry { bool active; uint8_t command; uint16_t time; }; address_space_config io_config; address_space *io; hso_cam_entry hso_info[8]; hso_cam_entry hso_cam_hold; uint64_t base_timer2, ad_done; uint8_t hso_command, ad_command; uint16_t hso_time, ad_result; uint8_t ios0, ios1, ioc0, ioc1; uint8_t sbuf, sp_stat; uint8_t serial_send_buf; uint64_t serial_send_timer; uint16_t timer_value(int timer, uint64_t current_time) const; uint64_t timer_time_until(int timer, uint64_t current_time, uint16_t timer_value) const; void commit_hso_cam(); void trigger_cam(int id, uint64_t current_time); void ad_start(uint64_t current_time); void serial_send(uint8_t data); void serial_send_done(); }; class c8095_device : public i8x9x_device { public: c8095_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); }; class p8098_device : public i8x9x_device { public: p8098_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); }; DECLARE_DEVICE_TYPE(C8095, c8095_device) DECLARE_DEVICE_TYPE(P8098, p8098_device) #endif // MAME_CPU_MCS96_I8X9X_H