// license:BSD-3-Clause // copyright-holders:AJR /********************************************************************** NEC 78K/III series 16/8-bit single-chip microcontrollers **********************************************************************/ #ifndef MAME_CPU_UPD78K_UPD78K3_H #define MAME_CPU_UPD78K_UPD78K3_H #pragma once //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> upd78k3_device class upd78k3_device : public cpu_device { public: enum { UPD78K3_PC, UPD78K3_PSW, UPD78K3_PSWL, UPD78K3_PSWH, UPD78K3_RBS, UPD78K3_SP, UPD78K3_RP0, UPD78K3_RP1, UPD78K3_RP2, UPD78K3_RP3, UPD78K3_RP4, UPD78K3_RP5, UPD78K3_RP6, UPD78K3_RP7, UPD78K3_AX, UPD78K3_BC, UPD78K3_VP, UPD78K3_UP, UPD78K3_DE, UPD78K3_HL, UPD78K3_R0, UPD78K3_R1, UPD78K3_R2, UPD78K3_R3, UPD78K3_R4, UPD78K3_R5, UPD78K3_R6, UPD78K3_R7, UPD78K3_R8, UPD78K3_R9, UPD78K3_R10, UPD78K3_R11, UPD78K3_R12, UPD78K3_R13, UPD78K3_R14, UPD78K3_R15, UPD78K3_X, UPD78K3_A, UPD78K3_C, UPD78K3_B, UPD78K3_VPL, UPD78K3_VPH, UPD78K3_UPL, UPD78K3_UPH, UPD78K3_E, UPD78K3_D, UPD78K3_L, UPD78K3_H }; // TODO: callbacks and configuration thereof protected: upd78k3_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock, address_map_constructor mem_map, address_map_constructor sfr_map); // device-level overrides virtual void device_start() override ATTR_COLD; virtual void device_reset() override ATTR_COLD; // device_execute_interface overrides virtual void execute_run() override; virtual u64 execute_clocks_to_cycles(u64 clocks) const noexcept override { return (clocks + 2 - 1) / 2; } virtual u64 execute_cycles_to_clocks(u64 cycles) const noexcept override { return (cycles * 2); } // device_memory_interface overrides virtual space_config_vector memory_space_config() const override; // device_state_interface overrides virtual void state_string_export(const device_state_entry &entry, std::string &str) const override; virtual void state_add_psw(); private: // internal memory map void iram_map(address_map &map) ATTR_COLD; // internal helpers inline u8 register_base() const noexcept; protected: u8 iram_byte_r(offs_t offset); void iram_byte_w(offs_t offset, u8 data); private: // address spaces, caches & configuration address_space_config m_program_config; address_space_config m_iram_config; address_space_config m_sfr_config; required_shared_ptr m_iram; memory_access<16, 0, 0, ENDIANNESS_LITTLE>::cache m_program_cache; memory_access< 8, 1, 0, ENDIANNESS_LITTLE>::cache m_iram_cache; memory_access<16, 0, 0, ENDIANNESS_LITTLE>::specific m_program_space; memory_access< 8, 1, 0, ENDIANNESS_LITTLE>::specific m_sfr_space; // core registers and execution state u16 m_pc; u16 m_ppc; protected: u16 m_psw; private: u16 m_sp; s32 m_icount; }; // ======================> upd78312_device class upd78312_device : public upd78k3_device { public: // device type constructor upd78312_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); protected: upd78312_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock, address_map_constructor map); // device_disasm_interface overrides virtual std::unique_ptr create_disassembler() override; // device_state_interface overrides virtual void state_string_export(const device_state_entry &entry, std::string &str) const override; // upd78k3_device overrides virtual void state_add_psw() override; private: // type-specific internal memory maps void mem_map(address_map &map) ATTR_COLD; void sfr_map(address_map &map) ATTR_COLD; }; // ======================> upd78310_device class upd78310_device : public upd78312_device { public: // device type constructor upd78310_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); }; // device type declarations DECLARE_DEVICE_TYPE(UPD78310, upd78310_device) DECLARE_DEVICE_TYPE(UPD78312, upd78312_device) #endif // MAME_CPU_UPD78K_UPD7832_H