// license:BSD-3-Clause // copyright-holders:David Haywood /*********************************\ ARCtangent (A4) core ARC == Argonaut RISC Core \*********************************/ #pragma once #ifndef __ARC_H__ #define __ARC_H__ class arc_device : public cpu_device { public: // construction/destruction arc_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); protected: // device-level overrides virtual void device_start(); virtual void device_reset(); // device_execute_interface overrides virtual UINT32 execute_min_cycles() const { return 5; } virtual UINT32 execute_max_cycles() const { return 5; } virtual UINT32 execute_input_lines() const { return 0; } virtual void execute_run(); virtual void execute_set_input(int inputnum, int state); // device_memory_interface overrides virtual const address_space_config *memory_space_config(address_spacenum spacenum = AS_0) const { return (spacenum == AS_PROGRAM) ? &m_program_config : NULL; } // device_state_interface overrides virtual void state_import(const device_state_entry &entry); virtual void state_export(const device_state_entry &entry); // device_disasm_interface overrides virtual UINT32 disasm_min_opcode_bytes() const { return 4; } virtual UINT32 disasm_max_opcode_bytes() const { return 4; } virtual offs_t disasm_disassemble(char *buffer, offs_t pc, const UINT8 *oprom, const UINT8 *opram, UINT32 options); private: address_space_config m_program_config; // 0 - 28 = r00 - r28 (General Purpose Registers) // 29 = r29 (ILINK1) // 30 = r30 (ILINE2) // 31 = r31 (BLINK) // 32- 59 = r32 - r59 (Reserved Registers) // 60 = LPCOUNT // 61 = Short Immediate Data Indicator Settings Flag // 62 = Long Immediate Data Indicator // 63 = Short Immediate Data Indicator NOT Settings Flag UINT32 m_pc; //UINT32 m_r[64]; address_space *m_program; int m_icount; UINT32 m_debugger_temp; void unimplemented_opcode(UINT16 op); inline UINT32 READ32(UINT32 address); inline void WRITE32(UINT32 address, UINT32 data); }; extern const device_type ARC; #endif /* __ARC_H__ */