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/*********************************\
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__ */
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