// license:BSD-3-Clause // copyright-holders:Olivier Galibert /*************************************************************************** i8x9x.h MCS96, 8x9x branch, the original version ***************************************************************************/ #ifndef __I8X9X_H__ #define __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 }; i8x9x_device(const machine_config &mconfig, device_type type, std::string name, std::string tag, device_t *owner, UINT32 clock, std::string shortname, std::string source); void serial_w(UINT8 val); protected: virtual void device_start() override; virtual void device_reset() override; virtual const address_space_config *memory_space_config(address_spacenum spacenum = AS_0) const override; static const disasm_entry disasm_entries[0x100]; virtual offs_t disasm_disassemble(char *buffer, offs_t pc, const UINT8 *oprom, const UINT8 *opram, UINT32 options) override; virtual void do_exec_full() override; virtual void do_exec_partial() override; virtual void internal_update(UINT64 current_time) override; virtual void io_w8(UINT8 adr, UINT8 data) override; virtual void io_w16(UINT8 adr, UINT16 data) override; virtual UINT8 io_r8(UINT8 adr) override; virtual UINT16 io_r16(UINT8 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 command; UINT16 time; }; address_space_config io_config; address_space *io; hso_cam_entry hso_info[8]; hso_cam_entry hso_cam_hold; UINT64 base_timer2, ad_done; UINT8 hso_command, ad_command; UINT16 hso_time, ad_result; UINT8 ios0, ios1, ioc0, ioc1; UINT8 sbuf, sp_stat; UINT8 serial_send_buf; UINT64 serial_send_timer; UINT16 timer_value(int timer, UINT64 current_time) const; UINT64 timer_time_until(int timer, UINT64 current_time, UINT16 timer_value) const; void commit_hso_cam(); void trigger_cam(int id, UINT64 current_time); void ad_start(UINT64 current_time); void serial_send(UINT8 data); void serial_send_done(); }; class c8095_device : public i8x9x_device { public: c8095_device(const machine_config &mconfig, std::string tag, device_t *owner, UINT32 clock); }; class p8098_device : public i8x9x_device { public: p8098_device(const machine_config &mconfig, std::string tag, device_t *owner, UINT32 clock); }; extern const device_type C8095; extern const device_type P8098; #endif