// license:BSD-3-Clause // copyright-holders:AJR /********************************************************************** NEC 78K/IV series 16/8-bit single-chip microcontrollers **********************************************************************/ #ifndef MAME_CPU_UPD78K_UPD78K4_H #define MAME_CPU_UPD78K_UPD78K4_H #pragma once //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> upd78k4_device class upd78k4_device : public cpu_device { public: enum { UPD78K4_PC, UPD78K4_PSW, UPD78K4_PSWL, UPD78K4_PSWH, UPD78K4_RBS, UPD78K4_SP, UPD78K4_VVP, UPD78K4_UUP, UPD78K4_TDE, UPD78K4_WHL, UPD78K4_RP0, UPD78K4_RP1, UPD78K4_RP2, UPD78K4_RP3, UPD78K4_RP4, UPD78K4_RP5, UPD78K4_RP6, UPD78K4_RP7, UPD78K4_AX, UPD78K4_BC, UPD78K4_VP, UPD78K4_UP, UPD78K4_DE, UPD78K4_HL, UPD78K4_R0, UPD78K4_R1, UPD78K4_R2, UPD78K4_R3, UPD78K4_R4, UPD78K4_R5, UPD78K4_R6, UPD78K4_R7, UPD78K4_R8, UPD78K4_R9, UPD78K4_R10, UPD78K4_R11, UPD78K4_R12, UPD78K4_R13, UPD78K4_R14, UPD78K4_R15, UPD78K4_X, UPD78K4_A, UPD78K4_C, UPD78K4_B, UPD78K4_VPL, UPD78K4_VPH, UPD78K4_UPL, UPD78K4_UPH, UPD78K4_E, UPD78K4_D, UPD78K4_L, UPD78K4_H, UPD78K4_V, UPD78K4_U, UPD78K4_T, UPD78K4_W }; // TODO: callbacks and configuration thereof protected: upd78k4_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, const XTAL &clock, address_map_constructor mem_map, address_map_constructor sfr_map); // device-level overrides virtual void device_start() override; virtual void device_reset() override; // 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; private: // internal memory map void iram_map(address_map &map); // internal helpers inline u16 register_base() const noexcept; 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<20, 0, 0, ENDIANNESS_LITTLE>::cache m_program_cache; memory_access< 9, 1, 0, ENDIANNESS_LITTLE>::cache m_iram_cache; memory_access<20, 0, 0, ENDIANNESS_LITTLE>::specific m_program_space; memory_access< 8, 1, 0, ENDIANNESS_LITTLE>::specific m_sfr_space; // core registers and execution state u32 m_pc; u32 m_ppc; u16 m_psw; u32 m_sp; u8 m_exp_reg[4]; s32 m_icount; }; // ======================> upd784031_device class upd784031_device : public upd78k4_device { public: // device type constructor upd784031_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock); protected: // device_disasm_interface overrides virtual std::unique_ptr create_disassembler() override; private: // type-specific internal memory maps void mem_map(address_map &map); void sfr_map(address_map &map); }; // device type declaration DECLARE_DEVICE_TYPE(UPD784031, upd784031_device) #endif // MAME_CPU_UPD78K_UPD78K4_H