/**************************************************************************** * * * Project 64 - A Nintendo 64 emulator. * * http://www.pj64-emu.com/ * * Copyright (C) 2012 Project64. All rights reserved. * * * * License: * * GNU/GPLv2 http://www.gnu.org/licenses/gpl-2.0.html * * * ****************************************************************************/ #pragma once //CPO registers by name class CP0registers { protected: CP0registers (uint32_t * _CP0); public: uint32_t & INDEX_REGISTER; uint32_t & RANDOM_REGISTER; uint32_t & ENTRYLO0_REGISTER; uint32_t & ENTRYLO1_REGISTER; uint32_t & CONTEXT_REGISTER; uint32_t & PAGE_MASK_REGISTER; uint32_t & WIRED_REGISTER; uint32_t & BAD_VADDR_REGISTER; uint32_t & COUNT_REGISTER; uint32_t & ENTRYHI_REGISTER; uint32_t & COMPARE_REGISTER; uint32_t & STATUS_REGISTER; uint32_t & CAUSE_REGISTER; uint32_t & EPC_REGISTER; uint32_t & CONFIG_REGISTER; uint32_t & TAGLO_REGISTER; uint32_t & TAGHI_REGISTER; uint32_t & ERROREPC_REGISTER; uint32_t & FAKE_CAUSE_REGISTER; private: CP0registers(); // Disable default constructor CP0registers(const CP0registers&); // Disable copy constructor CP0registers& operator=(const CP0registers&); // Disable assignment }; //CPO register flags enum { //Status Register STATUS_IE = 0x00000001, STATUS_EXL = 0x00000002, STATUS_ERL = 0x00000004, STATUS_IP0 = 0x00000100, STATUS_IP1 = 0x00000200, STATUS_IP2 = 0x00000400, STATUS_IP3 = 0x00000800, STATUS_IP4 = 0x00001000, STATUS_IP5 = 0x00002000, STATUS_IP6 = 0x00004000, STATUS_IP7 = 0x00008000, STATUS_BEV = 0x00400000, STATUS_FR = 0x04000000, STATUS_CU0 = 0x10000000, STATUS_CU1 = 0x20000000, //Cause Flags CAUSE_EXC_CODE = 0xFF, CAUSE_IP0 = 0x100, CAUSE_IP1 = 0x200, CAUSE_IP2 = 0x400, CAUSE_IP3 = 0x800, CAUSE_IP4 = 0x1000, CAUSE_IP5 = 0x2000, CAUSE_IP6 = 0x4000, CAUSE_IP7 = 0x8000, CAUSE_BD = 0x80000000, //Cause exception ID's EXC_INT = 0, /* interrupt */ EXC_MOD = 4, /* TLB mod */ EXC_RMISS = 8, /* Read TLB Miss */ EXC_WMISS = 12, /* Write TLB Miss */ EXC_RADE = 16, /* Read Address Error */ EXC_WADE = 20, /* Write Address Error */ EXC_IBE = 24, /* Instruction Bus Error */ EXC_DBE = 28, /* Data Bus Error */ EXC_SYSCALL = 32, /* SYSCALL */ EXC_BREAK = 36, /* BREAKpoint */ EXC_II = 40, /* Illegal Instruction */ EXC_CPU = 44, /* CoProcessor Unusable */ EXC_OV = 48, /* OVerflow */ EXC_TRAP = 52, /* Trap exception */ EXC_VCEI = 56, /* Virt. Coherency on Inst. fetch */ EXC_FPE = 60, /* Floating Point Exception */ EXC_WATCH = 92, /* Watchpoint reference */ EXC_VCED = 124,/* Virt. Coherency on data read */ }; //Float point control status register flags enum { FPCSR_FS = 0x01000000, /* flush denorm to zero */ FPCSR_C = 0x00800000, /* condition bit */ FPCSR_CE = 0x00020000, /* cause: unimplemented operation */ FPCSR_CV = 0x00010000, /* cause: invalid operation */ FPCSR_CZ = 0x00008000, /* cause: division by zero */ FPCSR_CO = 0x00004000, /* cause: overflow */ FPCSR_CU = 0x00002000, /* cause: underflow */ FPCSR_CI = 0x00001000, /* cause: inexact operation */ FPCSR_EV = 0x00000800, /* enable: invalid operation */ FPCSR_EZ = 0x00000400, /* enable: division by zero */ FPCSR_EO = 0x00000200, /* enable: overflow */ FPCSR_EU = 0x00000100, /* enable: underflow */ FPCSR_EI = 0x00000080, /* enable: inexact operation */ FPCSR_FV = 0x00000040, /* flag: invalid operation */ FPCSR_FZ = 0x00000020, /* flag: division by zero */ FPCSR_FO = 0x00000010, /* flag: overflow */ FPCSR_FU = 0x00000008, /* flag: underflow */ FPCSR_FI = 0x00000004, /* flag: inexact operation */ FPCSR_RM_MASK = 0x00000003, /* rounding mode mask */ FPCSR_RM_RN = 0x00000000, /* round to nearest */ FPCSR_RM_RZ = 0x00000001, /* round to zero */ FPCSR_RM_RP = 0x00000002, /* round to positive infinity */ FPCSR_RM_RM = 0x00000003, /* round to negative infinity */ }; //Rdram Registers class Rdram_InterfaceReg { protected: Rdram_InterfaceReg (uint32_t * _RdramInterface); public: uint32_t & RDRAM_CONFIG_REG; uint32_t & RDRAM_DEVICE_TYPE_REG; uint32_t & RDRAM_DEVICE_ID_REG; uint32_t & RDRAM_DELAY_REG; uint32_t & RDRAM_MODE_REG; uint32_t & RDRAM_REF_INTERVAL_REG; uint32_t & RDRAM_REF_ROW_REG; uint32_t & RDRAM_RAS_INTERVAL_REG; uint32_t & RDRAM_MIN_INTERVAL_REG; uint32_t & RDRAM_ADDR_SELECT_REG; uint32_t & RDRAM_DEVICE_MANUF_REG; private: Rdram_InterfaceReg(); // Disable default constructor Rdram_InterfaceReg(const Rdram_InterfaceReg&); // Disable copy constructor Rdram_InterfaceReg& operator=(const Rdram_InterfaceReg&); // Disable assignment }; //Mips interface registers class Mips_InterfaceReg { protected: Mips_InterfaceReg (uint32_t * _MipsInterface); public: uint32_t & MI_INIT_MODE_REG; uint32_t & MI_MODE_REG; uint32_t & MI_VERSION_REG; uint32_t & MI_NOOP_REG; uint32_t & MI_INTR_REG; uint32_t & MI_INTR_MASK_REG; private: Mips_InterfaceReg(); // Disable default constructor Mips_InterfaceReg(const Mips_InterfaceReg&); // Disable copy constructor Mips_InterfaceReg& operator=(const Mips_InterfaceReg&); // Disable assignment }; //Mips interface flags enum { MI_MODE_INIT = 0x0080, /* Bit 7: init mode */ MI_MODE_EBUS = 0x0100, /* Bit 8: ebus test mode */ MI_MODE_RDRAM = 0x0200, /* Bit 9: RDRAM reg mode */ MI_CLR_INIT = 0x0080, /* Bit 7: clear init mode */ MI_SET_INIT = 0x0100, /* Bit 8: set init mode */ MI_CLR_EBUS = 0x0200, /* Bit 9: clear ebus test */ MI_SET_EBUS = 0x0400, /* Bit 10: set ebus test mode */ MI_CLR_DP_INTR = 0x0800, /* Bit 11: clear dp interrupt */ MI_CLR_RDRAM = 0x1000, /* Bit 12: clear RDRAM reg */ MI_SET_RDRAM = 0x2000, /* Bit 13: set RDRAM reg mode */ //Flags for writing to MI_INTR_MASK_REG MI_INTR_MASK_CLR_SP = 0x0001, /* Bit 0: clear SP mask */ MI_INTR_MASK_SET_SP = 0x0002, /* Bit 1: set SP mask */ MI_INTR_MASK_CLR_SI = 0x0004, /* Bit 2: clear SI mask */ MI_INTR_MASK_SET_SI = 0x0008, /* Bit 3: set SI mask */ MI_INTR_MASK_CLR_AI = 0x0010, /* Bit 4: clear AI mask */ MI_INTR_MASK_SET_AI = 0x0020, /* Bit 5: set AI mask */ MI_INTR_MASK_CLR_VI = 0x0040, /* Bit 6: clear VI mask */ MI_INTR_MASK_SET_VI = 0x0080, /* Bit 7: set VI mask */ MI_INTR_MASK_CLR_PI = 0x0100, /* Bit 8: clear PI mask */ MI_INTR_MASK_SET_PI = 0x0200, /* Bit 9: set PI mask */ MI_INTR_MASK_CLR_DP = 0x0400, /* Bit 10: clear DP mask */ MI_INTR_MASK_SET_DP = 0x0800, /* Bit 11: set DP mask */ //Flags for reading from MI_INTR_MASK_REG MI_INTR_MASK_SP = 0x01, /* Bit 0: SP intr mask */ MI_INTR_MASK_SI = 0x02, /* Bit 1: SI intr mask */ MI_INTR_MASK_AI = 0x04, /* Bit 2: AI intr mask */ MI_INTR_MASK_VI = 0x08, /* Bit 3: VI intr mask */ MI_INTR_MASK_PI = 0x10, /* Bit 4: PI intr mask */ MI_INTR_MASK_DP = 0x20, /* Bit 5: DP intr mask */ MI_INTR_SP = 0x01, /* Bit 0: SP intr */ MI_INTR_SI = 0x02, /* Bit 1: SI intr */ MI_INTR_AI = 0x04, /* Bit 2: AI intr */ MI_INTR_VI = 0x08, /* Bit 3: VI intr */ MI_INTR_PI = 0x10, /* Bit 4: PI intr */ MI_INTR_DP = 0x20, /* Bit 5: DP intr */ }; //Mips interface registers class Video_InterfaceReg { protected: Video_InterfaceReg (uint32_t * _VideoInterface); public: uint32_t & VI_STATUS_REG; uint32_t & VI_CONTROL_REG; uint32_t & VI_ORIGIN_REG; uint32_t & VI_DRAM_ADDR_REG; uint32_t & VI_WIDTH_REG; uint32_t & VI_H_WIDTH_REG; uint32_t & VI_INTR_REG; uint32_t & VI_V_INTR_REG; uint32_t & VI_CURRENT_REG; uint32_t & VI_V_CURRENT_LINE_REG; uint32_t & VI_BURST_REG; uint32_t & VI_TIMING_REG; uint32_t & VI_V_SYNC_REG; uint32_t & VI_H_SYNC_REG; uint32_t & VI_LEAP_REG; uint32_t & VI_H_SYNC_LEAP_REG; uint32_t & VI_H_START_REG; uint32_t & VI_H_VIDEO_REG; uint32_t & VI_V_START_REG; uint32_t & VI_V_VIDEO_REG; uint32_t & VI_V_BURST_REG; uint32_t & VI_X_SCALE_REG; uint32_t & VI_Y_SCALE_REG; private: Video_InterfaceReg(); // Disable default constructor Video_InterfaceReg(const Video_InterfaceReg&); // Disable copy constructor Video_InterfaceReg& operator=(const Video_InterfaceReg&); // Disable assignment }; //Display Processor Control Registers class DisplayControlReg { protected: DisplayControlReg (uint32_t * _DisplayProcessor); public: uint32_t & DPC_START_REG; uint32_t & DPC_END_REG; uint32_t & DPC_CURRENT_REG; uint32_t & DPC_STATUS_REG; uint32_t & DPC_CLOCK_REG; uint32_t & DPC_BUFBUSY_REG; uint32_t & DPC_PIPEBUSY_REG; uint32_t & DPC_TMEM_REG; private: DisplayControlReg(); // Disable default constructor DisplayControlReg(const DisplayControlReg&); // Disable copy constructor DisplayControlReg& operator=(const DisplayControlReg&); // Disable assignment }; enum { DPC_CLR_XBUS_DMEM_DMA = 0x0001, /* Bit 0: clear xbus_dmem_dma */ DPC_SET_XBUS_DMEM_DMA = 0x0002, /* Bit 1: set xbus_dmem_dma */ DPC_CLR_FREEZE = 0x0004, /* Bit 2: clear freeze */ DPC_SET_FREEZE = 0x0008, /* Bit 3: set freeze */ DPC_CLR_FLUSH = 0x0010, /* Bit 4: clear flush */ DPC_SET_FLUSH = 0x0020, /* Bit 5: set flush */ DPC_CLR_TMEM_CTR = 0x0040, /* Bit 6: clear tmem ctr */ DPC_CLR_PIPE_CTR = 0x0080, /* Bit 7: clear pipe ctr */ DPC_CLR_CMD_CTR = 0x0100, /* Bit 8: clear cmd ctr */ DPC_CLR_CLOCK_CTR = 0x0200, /* Bit 9: clear clock ctr */ DPC_STATUS_XBUS_DMEM_DMA = 0x001, /* Bit 0: xbus_dmem_dma */ DPC_STATUS_FREEZE = 0x002, /* Bit 1: freeze */ DPC_STATUS_FLUSH = 0x004, /* Bit 2: flush */ DPC_STATUS_START_GCLK = 0x008, /* Bit 3: start gclk */ DPC_STATUS_TMEM_BUSY = 0x010, /* Bit 4: tmem busy */ DPC_STATUS_PIPE_BUSY = 0x020, /* Bit 5: pipe busy */ DPC_STATUS_CMD_BUSY = 0x040, /* Bit 6: cmd busy */ DPC_STATUS_CBUF_READY = 0x080, /* Bit 7: cbuf ready */ DPC_STATUS_DMA_BUSY = 0x100, /* Bit 8: dma busy */ DPC_STATUS_END_VALID = 0x200, /* Bit 9: end valid */ DPC_STATUS_START_VALID = 0x400, /* Bit 10: start valid */ }; /* //Audio Interface registers; */ class AudioInterfaceReg { protected: AudioInterfaceReg (uint32_t * _AudioInterface); public: uint32_t & AI_DRAM_ADDR_REG; uint32_t & AI_LEN_REG; uint32_t & AI_CONTROL_REG; uint32_t & AI_STATUS_REG; uint32_t & AI_DACRATE_REG; uint32_t & AI_BITRATE_REG; private: AudioInterfaceReg(); // Disable default constructor AudioInterfaceReg(const AudioInterfaceReg&); // Disable copy constructor AudioInterfaceReg& operator=(const AudioInterfaceReg&); // Disable assignment }; enum { AI_STATUS_FIFO_FULL = 0x80000000, /* Bit 31: full */ AI_STATUS_DMA_BUSY = 0x40000000, /* Bit 30: busy */ }; //Audio Interface registers; class PeripheralInterfaceReg { protected: PeripheralInterfaceReg (uint32_t * PeripheralInterface); public: uint32_t & PI_DRAM_ADDR_REG; uint32_t & PI_CART_ADDR_REG; uint32_t & PI_RD_LEN_REG; uint32_t & PI_WR_LEN_REG; uint32_t & PI_STATUS_REG; uint32_t & PI_BSD_DOM1_LAT_REG; uint32_t & PI_DOMAIN1_REG; uint32_t & PI_BSD_DOM1_PWD_REG; uint32_t & PI_BSD_DOM1_PGS_REG; uint32_t & PI_BSD_DOM1_RLS_REG; uint32_t & PI_BSD_DOM2_LAT_REG; uint32_t & PI_DOMAIN2_REG; uint32_t & PI_BSD_DOM2_PWD_REG; uint32_t & PI_BSD_DOM2_PGS_REG; uint32_t & PI_BSD_DOM2_RLS_REG; private: PeripheralInterfaceReg(); // Disable default constructor PeripheralInterfaceReg(const PeripheralInterfaceReg&); // Disable copy constructor PeripheralInterfaceReg& operator=(const PeripheralInterfaceReg&); // Disable assignment }; class RDRAMInt_InterfaceReg { protected: RDRAMInt_InterfaceReg (uint32_t * RdramInterface); public: uint32_t & RI_MODE_REG; uint32_t & RI_CONFIG_REG; uint32_t & RI_CURRENT_LOAD_REG; uint32_t & RI_SELECT_REG; uint32_t & RI_COUNT_REG; uint32_t & RI_REFRESH_REG; uint32_t & RI_LATENCY_REG; uint32_t & RI_RERROR_REG; uint32_t & RI_WERROR_REG; private: RDRAMInt_InterfaceReg(); // Disable default constructor RDRAMInt_InterfaceReg(const RDRAMInt_InterfaceReg&); // Disable copy constructor RDRAMInt_InterfaceReg& operator=(const RDRAMInt_InterfaceReg&); // Disable assignment }; //Signal Processor Interface; class SigProcessor_InterfaceReg { protected: SigProcessor_InterfaceReg (uint32_t * _SignalProcessorInterface); public: uint32_t & SP_MEM_ADDR_REG; uint32_t & SP_DRAM_ADDR_REG; uint32_t & SP_RD_LEN_REG; uint32_t & SP_WR_LEN_REG; uint32_t & SP_STATUS_REG; uint32_t & SP_DMA_FULL_REG; uint32_t & SP_DMA_BUSY_REG; uint32_t & SP_SEMAPHORE_REG; uint32_t & SP_PC_REG; uint32_t & SP_IBIST_REG; private: SigProcessor_InterfaceReg(); // Disable default constructor SigProcessor_InterfaceReg(const SigProcessor_InterfaceReg&); // Disable copy constructor SigProcessor_InterfaceReg& operator=(const SigProcessor_InterfaceReg&); // Disable assignment }; //Signal Processor interface flags enum { SP_CLR_HALT = 0x00001, /* Bit 0: clear halt */ SP_SET_HALT = 0x00002, /* Bit 1: set halt */ SP_CLR_BROKE = 0x00004, /* Bit 2: clear broke */ SP_CLR_INTR = 0x00008, /* Bit 3: clear intr */ SP_SET_INTR = 0x00010, /* Bit 4: set intr */ SP_CLR_SSTEP = 0x00020, /* Bit 5: clear sstep */ SP_SET_SSTEP = 0x00040, /* Bit 6: set sstep */ SP_CLR_INTR_BREAK = 0x00080, /* Bit 7: clear intr on break */ SP_SET_INTR_BREAK = 0x00100, /* Bit 8: set intr on break */ SP_CLR_SIG0 = 0x00200, /* Bit 9: clear signal 0 */ SP_SET_SIG0 = 0x00400, /* Bit 10: set signal 0 */ SP_CLR_SIG1 = 0x00800, /* Bit 11: clear signal 1 */ SP_SET_SIG1 = 0x01000, /* Bit 12: set signal 1 */ SP_CLR_SIG2 = 0x02000, /* Bit 13: clear signal 2 */ SP_SET_SIG2 = 0x04000, /* Bit 14: set signal 2 */ SP_CLR_SIG3 = 0x08000, /* Bit 15: clear signal 3 */ SP_SET_SIG3 = 0x10000, /* Bit 16: set signal 3 */ SP_CLR_SIG4 = 0x20000, /* Bit 17: clear signal 4 */ SP_SET_SIG4 = 0x40000, /* Bit 18: set signal 4 */ SP_CLR_SIG5 = 0x80000, /* Bit 19: clear signal 5 */ SP_SET_SIG5 = 0x100000, /* Bit 20: set signal 5 */ SP_CLR_SIG6 = 0x200000, /* Bit 21: clear signal 6 */ SP_SET_SIG6 = 0x400000, /* Bit 22: set signal 6 */ SP_CLR_SIG7 = 0x800000, /* Bit 23: clear signal 7 */ SP_SET_SIG7 = 0x1000000, /* Bit 24: set signal 7 */ SP_STATUS_HALT = 0x001, /* Bit 0: halt */ SP_STATUS_BROKE = 0x002, /* Bit 1: broke */ SP_STATUS_DMA_BUSY = 0x004, /* Bit 2: dma busy */ SP_STATUS_DMA_FULL = 0x008, /* Bit 3: dma full */ SP_STATUS_IO_FULL = 0x010, /* Bit 4: io full */ SP_STATUS_SSTEP = 0x020, /* Bit 5: single step */ SP_STATUS_INTR_BREAK = 0x040, /* Bit 6: interrupt on break */ SP_STATUS_SIG0 = 0x080, /* Bit 7: signal 0 set */ SP_STATUS_SIG1 = 0x100, /* Bit 8: signal 1 set */ SP_STATUS_SIG2 = 0x200, /* Bit 9: signal 2 set */ SP_STATUS_SIG3 = 0x400, /* Bit 10: signal 3 set */ SP_STATUS_SIG4 = 0x800, /* Bit 11: signal 4 set */ SP_STATUS_SIG5 = 0x1000, /* Bit 12: signal 5 set */ SP_STATUS_SIG6 = 0x2000, /* Bit 13: signal 6 set */ SP_STATUS_SIG7 = 0x4000, /* Bit 14: signal 7 set */ }; //Peripheral Interface flags enum { PI_STATUS_DMA_BUSY = 0x01, PI_STATUS_IO_BUSY = 0x02, PI_STATUS_ERROR = 0x04, PI_SET_RESET = 0x01, PI_CLR_INTR = 0x02, }; class Serial_InterfaceReg { protected: Serial_InterfaceReg (uint32_t * SerialInterface); public: uint32_t & SI_DRAM_ADDR_REG; uint32_t & SI_PIF_ADDR_RD64B_REG; uint32_t & SI_PIF_ADDR_WR64B_REG; uint32_t & SI_STATUS_REG; private: Serial_InterfaceReg(); // Disable default constructor Serial_InterfaceReg(const Serial_InterfaceReg&); // Disable copy constructor Serial_InterfaceReg& operator=(const Serial_InterfaceReg&); // Disable assignment }; //Serial Interface flags enum { SI_STATUS_DMA_BUSY = 0x0001, SI_STATUS_RD_BUSY = 0x0002, SI_STATUS_DMA_ERROR = 0x0008, SI_STATUS_INTERRUPT = 0x1000, }; enum ROUNDING_MODE { ROUND_NEAR = 0x00000000, // _RC_NEAR ROUND_DOWN = 0x00000100, // _RC_DOWN ROUND_UP = 0x00000200, // _RC_UP ROUND_CHOP = 0x00000300, // _RC_CHOP }; class CRegName { public: static const char *GPR[32]; static const char *GPR_Hi[32]; static const char *GPR_Lo[32]; static const char *Cop0[32]; static const char *FPR[32]; static const char *FPR_Ctrl[32]; }; class CSystemRegisters { protected: static uint32_t * _PROGRAM_COUNTER; static MIPS_DWORD * _GPR; static MIPS_DWORD * _FPR; static uint32_t * _CP0; static MIPS_DWORD * _RegHI; static MIPS_DWORD * _RegLO; static float ** _FPR_S; static double ** _FPR_D; static uint32_t * _FPCR; static uint32_t * _LLBit; static ROUNDING_MODE * _RoundingModel; }; class CN64System; class CSystemEvents; class CRegisters : private CDebugSettings, private CGameSettings, protected CSystemRegisters, public CP0registers, public Rdram_InterfaceReg, public Mips_InterfaceReg, public Video_InterfaceReg, public AudioInterfaceReg, public PeripheralInterfaceReg, public RDRAMInt_InterfaceReg, public SigProcessor_InterfaceReg, public DisplayControlReg, public Serial_InterfaceReg { public: CRegisters(CN64System * System, CSystemEvents * SystemEvents); //General Registers uint32_t m_PROGRAM_COUNTER; MIPS_DWORD m_GPR[32]; uint32_t m_CP0[33]; MIPS_DWORD m_HI; MIPS_DWORD m_LO; uint32_t m_LLBit; //Floating point registers/information uint32_t m_FPCR[32]; ROUNDING_MODE m_RoundingModel; MIPS_DWORD m_FPR[32]; float * m_FPR_S[32]; double * m_FPR_D[32]; //Memory Mapped N64 registers uint32_t m_RDRAM_Registers[10]; uint32_t m_SigProcessor_Interface[10]; uint32_t m_Display_ControlReg[10]; uint32_t m_Mips_Interface[4]; uint32_t m_Video_Interface[14]; uint32_t m_Audio_Interface[6]; uint32_t m_Peripheral_Interface[13]; uint32_t m_RDRAM_Interface[8]; uint32_t m_SerialInterface[4]; uint32_t m_AudioIntrReg; uint32_t m_GfxIntrReg; uint32_t m_RspIntrReg; void CheckInterrupts (); void DoAddressError ( bool DelaySlot, uint32_t BadVaddr, bool FromRead ); void DoBreakException ( bool DelaySlot ); void DoCopUnusableException ( bool DelaySlot, int32_t Coprocessor ); bool DoIntrException ( bool DelaySlot ); void DoTLBReadMiss ( bool DelaySlot, uint32_t BadVaddr ); void DoSysCallException ( bool DelaySlot); void FixFpuLocations (); void Reset (); void SetAsCurrentSystem (); private: CRegisters(); // Disable default constructor CRegisters(const CRegisters&); // Disable copy constructor CRegisters& operator=(const CRegisters&); // Disable assignment bool m_FirstInterupt; CN64System * m_System; CSystemEvents * m_SystemEvents; };