/**************************\ * * SunPlus u'nSP emulator * * by Harmony * \**************************/ #pragma once #ifndef __UNSP_H__ #define __UNSP_H__ enum { UNSP_SP = 1, UNSP_R1, UNSP_R2, UNSP_R3, UNSP_R4, UNSP_BP, UNSP_SR, UNSP_PC, UNSP_GPR_COUNT = UNSP_PC, UNSP_IRQ, UNSP_FIQ, UNSP_SB, }; enum { UNSP_IRQ0_LINE = 0, UNSP_IRQ1_LINE, UNSP_IRQ2_LINE, UNSP_IRQ3_LINE, UNSP_IRQ4_LINE, UNSP_IRQ5_LINE, UNSP_IRQ6_LINE, UNSP_IRQ7_LINE, UNSP_FIQ_LINE, UNSP_BRK_LINE, UNSP_NUM_LINES }; class unsp_device : public cpu_device { public: // construction/destruction unsp_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 2; } 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; UINT16 m_r[16]; UINT8 m_irq; UINT8 m_fiq; UINT16 m_curirq; UINT16 m_sirq; UINT8 m_sb; UINT8 m_saved_sb; address_space *m_program; int m_icount; UINT32 m_debugger_temp; void unimplemented_opcode(UINT16 op); inline UINT16 READ16(UINT32 address); inline void WRITE16(UINT32 address, UINT16 data); inline void unsp_update_nz(UINT32 value); inline void unsp_update_nzsc(UINT32 value, UINT16 r0, UINT16 r1); inline void unsp_push(UINT16 value, UINT16 *reg); inline UINT16 unsp_pop(UINT16 *reg); }; extern const device_type UNSP; #endif /* __UNSP_H__ */