#if !defined (__MIPS_CPU_H__) #define __MIPS_CPU_H__ #define TARGET_HAS_ICE 1 #define ELF_MACHINE EM_MIPS #include "config.h" #include "mips-defs.h" #include "cpu-defs.h" #include "softfloat.h" // uint_fast8_t and uint_fast16_t not in // XXX: move that elsewhere #if defined(HOST_SOLARIS) && SOLARISREV < 10 typedef unsigned char uint_fast8_t; typedef unsigned int uint_fast16_t; #endif typedef union fpr_t fpr_t; union fpr_t { float64 fd; /* ieee double precision */ float32 fs[2];/* ieee single precision */ uint64_t d; /* binary single fixed-point */ uint32_t w[2]; /* binary single fixed-point */ }; /* define FP_ENDIAN_IDX to access the same location * in the fpr_t union regardless of the host endianess */ #if defined(WORDS_BIGENDIAN) # define FP_ENDIAN_IDX 1 #else # define FP_ENDIAN_IDX 0 #endif #if defined(MIPS_USES_R4K_TLB) typedef struct tlb_t tlb_t; struct tlb_t { target_ulong VPN; uint32_t PageMask; uint_fast8_t ASID; uint_fast16_t G:1; uint_fast16_t C0:3; uint_fast16_t C1:3; uint_fast16_t V0:1; uint_fast16_t V1:1; uint_fast16_t D0:1; uint_fast16_t D1:1; target_ulong PFN[2]; }; #endif typedef struct CPUMIPSState CPUMIPSState; struct CPUMIPSState { /* General integer registers */ target_ulong gpr[32]; /* Special registers */ target_ulong PC; #if TARGET_LONG_BITS > HOST_LONG_BITS target_ulong t0; target_ulong t1; target_ulong t2; #endif target_ulong HI, LO; uint32_t DCR; /* ? */ /* Floating point registers */ fpr_t fpr[16]; #define FPR(cpu, n) ((fpr_t*)&(cpu)->fpr[(n) / 2]) #define FPR_FD(cpu, n) (FPR(cpu, n)->fd) #define FPR_FS(cpu, n) (FPR(cpu, n)->fs[((n) & 1) ^ FP_ENDIAN_IDX]) #define FPR_D(cpu, n) (FPR(cpu, n)->d) #define FPR_W(cpu, n) (FPR(cpu, n)->w[((n) & 1) ^ FP_ENDIAN_IDX]) #ifndef USE_HOST_FLOAT_REGS fpr_t ft0; fpr_t ft1; fpr_t ft2; #endif float_status fp_status; /* fpu implementation/revision register */ uint32_t fcr0; /* fcsr */ uint32_t fcr31; #define SET_FP_COND(reg) do { (reg) |= (1<<23); } while(0) #define CLEAR_FP_COND(reg) do { (reg) &= ~(1<<23); } while(0) #define IS_FP_COND_SET(reg) (((reg) & (1<<23)) != 0) #define GET_FP_CAUSE(reg) (((reg) >> 12) & 0x3f) #define GET_FP_ENABLE(reg) (((reg) >> 7) & 0x1f) #define GET_FP_FLAGS(reg) (((reg) >> 2) & 0x1f) #define SET_FP_CAUSE(reg,v) do { (reg) = ((reg) & ~(0x3f << 12)) | ((v) << 12); } while(0) #define SET_FP_ENABLE(reg,v) do { (reg) = ((reg) & ~(0x1f << 7)) | ((v) << 7); } while(0) #define SET_FP_FLAGS(reg,v) do { (reg) = ((reg) & ~(0x1f << 2)) | ((v) << 2); } while(0) #define FP_INEXACT 1 #define FP_UNDERFLOW 2 #define FP_OVERFLOW 4 #define FP_DIV0 8 #define FP_INVALID 16 #define FP_UNIMPLEMENTED 32 #if defined(MIPS_USES_R4K_TLB) tlb_t tlb[MIPS_TLB_MAX]; uint32_t tlb_in_use; #endif int32_t CP0_Index; int32_t CP0_Random; target_ulong CP0_EntryLo0; target_ulong CP0_EntryLo1; target_ulong CP0_Context; int32_t CP0_PageMask; int32_t CP0_PageGrain; int32_t CP0_Wired; int32_t CP0_HWREna; target_ulong CP0_BadVAddr; int32_t CP0_Count; target_ulong CP0_EntryHi; int32_t CP0_Compare; int32_t CP0_Status; #define CP0St_CU3 31 #define CP0St_CU2 30 #define CP0St_CU1 29 #define CP0St_CU0 28 #define CP0St_RP 27 #define CP0St_FR 26 #define CP0St_RE 25 #define CP0St_MX 24 #define CP0St_PX 23 #define CP0St_BEV 22 #define CP0St_TS 21 #define CP0St_SR 20 #define CP0St_NMI 19 #define CP0St_IM 8 #define CP0St_KX 7 #define CP0St_SX 6 #define CP0St_UX 5 #define CP0St_UM 4 #define CP0St_R0 3 #define CP0St_ERL 2 #define CP0St_EXL 1 #define CP0St_IE 0 int32_t CP0_IntCtl; int32_t CP0_SRSCtl; int32_t CP0_SRSMap; int32_t CP0_Cause; #define CP0Ca_BD 31 #define CP0Ca_TI 30 #define CP0Ca_CE 28 #define CP0Ca_DC 27 #define CP0Ca_PCI 26 #define CP0Ca_IV 23 #define CP0Ca_WP 22 #define CP0Ca_IP 8 #define CP0Ca_IP_mask 0x0000FF00 #define CP0Ca_EC 2 target_ulong CP0_EPC; int32_t CP0_PRid; int32_t CP0_EBase; int32_t CP0_Config0; #define CP0C0_M 31 #define CP0C0_K23 28 #define CP0C0_KU 25 #define CP0C0_MDU 20 #define CP0C0_MM 17 #define CP0C0_BM 16 #define CP0C0_BE 15 #define CP0C0_AT 13 #define CP0C0_AR 10 #define CP0C0_MT 7 #define CP0C0_VI 3 #define CP0C0_K0 0 int32_t CP0_Config1; #define CP0C1_M 31 #define CP0C1_MMU 25 #define CP0C1_IS 22 #define CP0C1_IL 19 #define CP0C1_IA 16 #define CP0C1_DS 13 #define CP0C1_DL 10 #define CP0C1_DA 7 #define CP0C1_C2 6 #define CP0C1_MD 5 #define CP0C1_PC 4 #define CP0C1_WR 3 #define CP0C1_CA 2 #define CP0C1_EP 1 #define CP0C1_FP 0 int32_t CP0_Config2; #define CP0C2_M 31 #define CP0C2_TU 28 #define CP0C2_TS 24 #define CP0C2_TL 20 #define CP0C2_TA 16 #define CP0C2_SU 12 #define CP0C2_SS 8 #define CP0C2_SL 4 #define CP0C2_SA 0 int32_t CP0_Config3; #define CP0C3_M 31 #define CP0C3_DSPP 10 #define CP0C3_LPA 7 #define CP0C3_VEIC 6 #define CP0C3_VInt 5 #define CP0C3_SP 4 #define CP0C3_MT 2 #define CP0C3_SM 1 #define CP0C3_TL 0 target_ulong CP0_LLAddr; target_ulong CP0_WatchLo; int32_t CP0_WatchHi; target_ulong CP0_XContext; int32_t CP0_Framemask; int32_t CP0_Debug; #define CPDB_DBD 31 #define CP0DB_DM 30 #define CP0DB_LSNM 28 #define CP0DB_Doze 27 #define CP0DB_Halt 26 #define CP0DB_CNT 25 #define CP0DB_IBEP 24 #define CP0DB_DBEP 21 #define CP0DB_IEXI 20 #define CP0DB_VER 15 #define CP0DB_DEC 10 #define CP0DB_SSt 8 #define CP0DB_DINT 5 #define CP0DB_DIB 4 #define CP0DB_DDBS 3 #define CP0DB_DDBL 2 #define CP0DB_DBp 1 #define CP0DB_DSS 0 target_ulong CP0_DEPC; int32_t CP0_Performance0; int32_t CP0_TagLo; int32_t CP0_DataLo; int32_t CP0_TagHi; int32_t CP0_DataHi; target_ulong CP0_ErrorEPC; int32_t CP0_DESAVE; /* Qemu */ int interrupt_request; jmp_buf jmp_env; int exception_index; int error_code; int user_mode_only; /* user mode only simulation */ uint32_t hflags; /* CPU State */ /* TMASK defines different execution modes */ #define MIPS_HFLAG_TMASK 0x007F #define MIPS_HFLAG_MODE 0x001F /* execution modes */ #define MIPS_HFLAG_UM 0x0001 /* user mode */ #define MIPS_HFLAG_ERL 0x0002 /* Error mode */ #define MIPS_HFLAG_EXL 0x0004 /* Exception mode */ #define MIPS_HFLAG_DM 0x0008 /* Debug mode */ #define MIPS_HFLAG_SM 0x0010 /* Supervisor mode */ #define MIPS_HFLAG_RE 0x0040 /* Reversed endianness */ /* If translation is interrupted between the branch instruction and * the delay slot, record what type of branch it is so that we can * resume translation properly. It might be possible to reduce * this from three bits to two. */ #define MIPS_HFLAG_BMASK 0x0380 #define MIPS_HFLAG_B 0x0080 /* Unconditional branch */ #define MIPS_HFLAG_BC 0x0100 /* Conditional branch */ #define MIPS_HFLAG_BL 0x0180 /* Likely branch */ #define MIPS_HFLAG_BR 0x0200 /* branch to register (can't link TB) */ target_ulong btarget; /* Jump / branch target */ int bcond; /* Branch condition (if needed) */ int halted; /* TRUE if the CPU is in suspend state */ int SYNCI_Step; /* Address step size for SYNCI */ int CCRes; /* Cycle count resolution/divisor */ #if defined(CONFIG_USER_ONLY) target_ulong tls_value; #endif CPU_COMMON int ram_size; const char *kernel_filename; const char *kernel_cmdline; const char *initrd_filename; struct QEMUTimer *timer; /* Internal timer */ }; #include "cpu-all.h" /* Memory access type : * may be needed for precise access rights control and precise exceptions. */ enum { /* 1 bit to define user level / supervisor access */ ACCESS_USER = 0x00, ACCESS_SUPER = 0x01, /* 1 bit to indicate direction */ ACCESS_STORE = 0x02, /* Type of instruction that generated the access */ ACCESS_CODE = 0x10, /* Code fetch access */ ACCESS_INT = 0x20, /* Integer load/store access */ ACCESS_FLOAT = 0x30, /* floating point load/store access */ }; /* Exceptions */ enum { EXCP_NONE = -1, EXCP_RESET = 0, EXCP_SRESET, EXCP_DSS, EXCP_DINT, EXCP_NMI, EXCP_MCHECK, EXCP_EXT_INTERRUPT, EXCP_DFWATCH, EXCP_DIB, /* 8 */ EXCP_IWATCH, EXCP_AdEL, EXCP_AdES, EXCP_TLBF, EXCP_IBE, EXCP_DBp, EXCP_SYSCALL, EXCP_BREAK, /* 16 */ EXCP_CpU, EXCP_RI, EXCP_OVERFLOW, EXCP_TRAP, EXCP_DDBS, EXCP_DWATCH, EXCP_LAE, EXCP_SAE, /* 24 */ EXCP_LTLBL, EXCP_TLBL, EXCP_TLBS, EXCP_DBE, EXCP_DDBL, EXCP_MTCP0 = 0x104, /* mtmsr instruction: */ /* may change privilege level */ EXCP_BRANCH = 0x108, /* branch instruction */ EXCP_ERET = 0x10C, /* return from interrupt */ EXCP_SYSCALL_USER = 0x110, /* System call in user mode only */ EXCP_FLUSH = 0x109, }; int cpu_mips_exec(CPUMIPSState *s); CPUMIPSState *cpu_mips_init(void); uint32_t cpu_mips_get_clock (void); #endif /* !defined (__MIPS_CPU_H__) */