// license:BSD-3-Clause // copyright-holders:AJR /********************************************************************** NEC 78K/0 series 8-bit single-chip microcontrollers **********************************************************************/ #ifndef MAME_CPU_UPD78K_UPD78K0_H #define MAME_CPU_UPD78K_UPD78K0_H #pragma once //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> upd78k0_device class upd78k0_device : public cpu_device { public: enum { UPD78K0_PC, UPD78K0_PSW, UPD78K0_RBS, UPD78K0_SP, UPD78K0_AX, UPD78K0_BC, UPD78K0_DE, UPD78K0_HL, UPD78K0_X, UPD78K0_A, UPD78K0_C, UPD78K0_B, UPD78K0_D, UPD78K0_E, UPD78K0_H, UPD78K0_L }; // configuration (TODO: callbacks) void set_subclock(u32 clock) { m_subclock = clock; } void set_subclock(const XTAL &xtal) { m_subclock = xtal.value(); } protected: upd78k0_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock, u16 iram_size, 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; // 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; inline u16 debug_register_base() const noexcept; // address spaces, caches & configuration address_space_config m_program_config; address_space_config m_iram_config; address_space_config m_sfr_config; const u16 m_iram_size; memory_access<16, 0, 0, ENDIANNESS_LITTLE>::cache m_program_cache; memory_access<10, 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; // miscellaneous configuration u32 m_subclock; // core registers and execution state u16 m_pc; u16 m_ppc; u8 m_psw; u16 m_sp; s32 m_icount; }; // ======================> upd78053_device class upd78053_device : public upd78k0_device { public: // device type constructors upd78053_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); template upd78053_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock, X &&subclock) : upd78053_device(mconfig, tag, owner, clock) { set_subclock(std::forward(subclock)); } 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(UPD78053, upd78053_device) #endif // MAME_CPU_UPD78K_UPD78K0_H