target-sparc/cpu.h - qemu - Git at Google

 #ifndef CPU_SPARC_H
 #define CPU_SPARC_H

 #include "config.h"

 #if !defined(TARGET_SPARC64)
 #define TARGET_LONG_BITS 32
 #define TARGET_FPREGS 32
 #define TARGET_PAGE_BITS 12 /* 4k */
 #else
 #define TARGET_LONG_BITS 64
 #define TARGET_FPREGS 64
 #define TARGET_PAGE_BITS 13 /* 8k */
 #endif

 #define TARGET_PHYS_ADDR_BITS 64

 #include "cpu-defs.h"

 #include "softfloat.h"

 #define TARGET_HAS_ICE 1

 #if !defined(TARGET_SPARC64)
 #define ELF_MACHINE     EM_SPARC
 #else
 #define ELF_MACHINE     EM_SPARCV9
 #endif

 /*#define EXCP_INTERRUPT 0x100*/

 /* trap definitions */
 #ifndef TARGET_SPARC64
 #define TT_TFAULT   0x01
 #define TT_ILL_INSN 0x02
 #define TT_PRIV_INSN 0x03
 #define TT_NFPU_INSN 0x04
 #define TT_WIN_OVF  0x05
 #define TT_WIN_UNF  0x06
 #define TT_UNALIGNED 0x07
 #define TT_FP_EXCP  0x08
 #define TT_DFAULT   0x09
 #define TT_TOVF     0x0a
 #define TT_EXTINT   0x10
 #define TT_CODE_ACCESS 0x21
 #define TT_UNIMP_FLUSH 0x25
 #define TT_DATA_ACCESS 0x29
 #define TT_DIV_ZERO 0x2a
 #define TT_NCP_INSN 0x24
 #define TT_TRAP     0x80
 #else
 #define TT_TFAULT   0x08
 #define TT_CODE_ACCESS 0x0a
 #define TT_ILL_INSN 0x10
 #define TT_UNIMP_FLUSH TT_ILL_INSN
 #define TT_PRIV_INSN 0x11
 #define TT_NFPU_INSN 0x20
 #define TT_FP_EXCP  0x21
 #define TT_TOVF     0x23
 #define TT_CLRWIN   0x24
 #define TT_DIV_ZERO 0x28
 #define TT_DFAULT   0x30
 #define TT_DATA_ACCESS 0x32
 #define TT_UNALIGNED 0x34
 #define TT_PRIV_ACT 0x37
 #define TT_EXTINT   0x40
 #define TT_IVEC     0x60
 #define TT_TMISS    0x64
 #define TT_DMISS    0x68
 #define TT_DPROT    0x6c
 #define TT_SPILL    0x80
 #define TT_FILL     0xc0
 #define TT_WOTHER   0x10
 #define TT_TRAP     0x100
 #endif

 #define PSR_NEG_SHIFT 23
 #define PSR_NEG   (1 << PSR_NEG_SHIFT)
 #define PSR_ZERO_SHIFT 22
 #define PSR_ZERO  (1 << PSR_ZERO_SHIFT)
 #define PSR_OVF_SHIFT 21
 #define PSR_OVF   (1 << PSR_OVF_SHIFT)
 #define PSR_CARRY_SHIFT 20
 #define PSR_CARRY (1 << PSR_CARRY_SHIFT)
 #define PSR_ICC   (PSR_NEG|PSR_ZERO|PSR_OVF|PSR_CARRY)
 #define PSR_EF    (1<<12)
 #define PSR_PIL   0xf00
 #define PSR_S     (1<<7)
 #define PSR_PS    (1<<6)
 #define PSR_ET    (1<<5)
 #define PSR_CWP   0x1f

 /* Trap base register */
 #define TBR_BASE_MASK 0xfffff000

 #if defined(TARGET_SPARC64)
 #define PS_IG    (1<<11)
 #define PS_MG    (1<<10)
 #define PS_RMO   (1<<7)
 #define PS_RED   (1<<5)
 #define PS_PEF   (1<<4)
 #define PS_AM    (1<<3)
 #define PS_PRIV  (1<<2)
 #define PS_IE    (1<<1)
 #define PS_AG    (1<<0)

 #define FPRS_FEF (1<<2)

 #define HS_PRIV  (1<<2)
 #endif

 /* Fcc */
 #define FSR_RD1        (1ULL << 31)
 #define FSR_RD0        (1ULL << 30)
 #define FSR_RD_MASK    (FSR_RD1 | FSR_RD0)
 #define FSR_RD_NEAREST 0
 #define FSR_RD_ZERO    FSR_RD0
 #define FSR_RD_POS     FSR_RD1
 #define FSR_RD_NEG     (FSR_RD1 | FSR_RD0)

 #define FSR_NVM   (1ULL << 27)
 #define FSR_OFM   (1ULL << 26)
 #define FSR_UFM   (1ULL << 25)
 #define FSR_DZM   (1ULL << 24)
 #define FSR_NXM   (1ULL << 23)
 #define FSR_TEM_MASK (FSR_NVM | FSR_OFM | FSR_UFM | FSR_DZM | FSR_NXM)

 #define FSR_NVA   (1ULL << 9)
 #define FSR_OFA   (1ULL << 8)
 #define FSR_UFA   (1ULL << 7)
 #define FSR_DZA   (1ULL << 6)
 #define FSR_NXA   (1ULL << 5)
 #define FSR_AEXC_MASK (FSR_NVA | FSR_OFA | FSR_UFA | FSR_DZA | FSR_NXA)

 #define FSR_NVC   (1ULL << 4)
 #define FSR_OFC   (1ULL << 3)
 #define FSR_UFC   (1ULL << 2)
 #define FSR_DZC   (1ULL << 1)
 #define FSR_NXC   (1ULL << 0)
 #define FSR_CEXC_MASK (FSR_NVC | FSR_OFC | FSR_UFC | FSR_DZC | FSR_NXC)

 #define FSR_FTT2   (1ULL << 16)
 #define FSR_FTT1   (1ULL << 15)
 #define FSR_FTT0   (1ULL << 14)
 //gcc warns about constant overflow for ~FSR_FTT_MASK
 //#define FSR_FTT_MASK (FSR_FTT2 | FSR_FTT1 | FSR_FTT0)
 #ifdef TARGET_SPARC64
 #define FSR_FTT_NMASK      0xfffffffffffe3fffULL
 #define FSR_FTT_CEXC_NMASK 0xfffffffffffe3fe0ULL
 #define FSR_LDFSR_OLDMASK  0x0000003f000fc000ULL
 #define FSR_LDXFSR_MASK    0x0000003fcfc00fffULL
 #define FSR_LDXFSR_OLDMASK 0x00000000000fc000ULL
 #else
 #define FSR_FTT_NMASK      0xfffe3fffULL
 #define FSR_FTT_CEXC_NMASK 0xfffe3fe0ULL
 #define FSR_LDFSR_OLDMASK  0x000fc000ULL
 #endif
 #define FSR_LDFSR_MASK     0xcfc00fffULL
 #define FSR_FTT_IEEE_EXCP (1ULL << 14)
 #define FSR_FTT_UNIMPFPOP (3ULL << 14)
 #define FSR_FTT_SEQ_ERROR (4ULL << 14)
 #define FSR_FTT_INVAL_FPR (6ULL << 14)

 #define FSR_FCC1_SHIFT 11
 #define FSR_FCC1  (1ULL << FSR_FCC1_SHIFT)
 #define FSR_FCC0_SHIFT 10
 #define FSR_FCC0  (1ULL << FSR_FCC0_SHIFT)

 /* MMU */
 #define MMU_E     (1<<0)
 #define MMU_NF    (1<<1)

 #define PTE_ENTRYTYPE_MASK 3
 #define PTE_ACCESS_MASK    0x1c
 #define PTE_ACCESS_SHIFT   2
 #define PTE_PPN_SHIFT      7
 #define PTE_ADDR_MASK      0xffffff00

 #define PG_ACCESSED_BIT 5
 #define PG_MODIFIED_BIT 6
 #define PG_CACHE_BIT    7

 #define PG_ACCESSED_MASK (1 << PG_ACCESSED_BIT)
 #define PG_MODIFIED_MASK (1 << PG_MODIFIED_BIT)
 #define PG_CACHE_MASK    (1 << PG_CACHE_BIT)

 /* 3 <= NWINDOWS <= 32. */
 #define MIN_NWINDOWS 3
 #define MAX_NWINDOWS 32

 #if !defined(TARGET_SPARC64)
 #define NB_MMU_MODES 2
 #else
 #define NB_MMU_MODES 3
 typedef struct trap_state {
     uint64_t tpc;
     uint64_t tnpc;
     uint64_t tstate;
     uint32_t tt;
 } trap_state;
 #endif

 typedef struct sparc_def_t {
     const char *name;
     target_ulong iu_version;
     uint32_t fpu_version;
     uint32_t mmu_version;
     uint32_t mmu_bm;
     uint32_t mmu_ctpr_mask;
     uint32_t mmu_cxr_mask;
     uint32_t mmu_sfsr_mask;
     uint32_t mmu_trcr_mask;
     uint32_t mxcc_version;
     uint32_t features;
     uint32_t nwindows;
     uint32_t maxtl;
 } sparc_def_t;

 #define CPU_FEATURE_FLOAT    (1 << 0)
 #define CPU_FEATURE_FLOAT128 (1 << 1)
 #define CPU_FEATURE_SWAP     (1 << 2)
 #define CPU_FEATURE_MUL      (1 << 3)
 #define CPU_FEATURE_DIV      (1 << 4)
 #define CPU_FEATURE_FLUSH    (1 << 5)
 #define CPU_FEATURE_FSQRT    (1 << 6)
 #define CPU_FEATURE_FMUL     (1 << 7)
 #define CPU_FEATURE_VIS1     (1 << 8)
 #define CPU_FEATURE_VIS2     (1 << 9)
 #define CPU_FEATURE_FSMULD   (1 << 10)
 #define CPU_FEATURE_HYPV     (1 << 11)
 #define CPU_FEATURE_CMT      (1 << 12)
 #define CPU_FEATURE_GL       (1 << 13)
 #ifndef TARGET_SPARC64
 #define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP |  \
                               CPU_FEATURE_MUL | CPU_FEATURE_DIV |     \
                               CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT | \
                               CPU_FEATURE_FMUL | CPU_FEATURE_FSMULD)
 #else
 #define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP |  \
                               CPU_FEATURE_MUL | CPU_FEATURE_DIV |     \
                               CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT | \
                               CPU_FEATURE_FMUL | CPU_FEATURE_VIS1 |   \
                               CPU_FEATURE_VIS2 | CPU_FEATURE_FSMULD)
 enum {
     mmu_us_12, // Ultrasparc < III (64 entry TLB)
     mmu_us_3,  // Ultrasparc III (512 entry TLB)
     mmu_us_4,  // Ultrasparc IV (several TLBs, 32 and 256MB pages)
     mmu_sun4v, // T1, T2
 };
 #endif

 typedef struct CPUSPARCState {
     target_ulong gregs[8]; /* general registers */
     target_ulong *regwptr; /* pointer to current register window */
     target_ulong pc;       /* program counter */
     target_ulong npc;      /* next program counter */
     target_ulong y;        /* multiply/divide register */

     /* emulator internal flags handling */
     target_ulong cc_src, cc_src2;
     target_ulong cc_dst;

     target_ulong t0, t1; /* temporaries live across basic blocks */
     target_ulong cond; /* conditional branch result (XXX: save it in a
                           temporary register when possible) */

     uint32_t psr;      /* processor state register */
     target_ulong fsr;      /* FPU state register */
     float32 fpr[TARGET_FPREGS];  /* floating point registers */
     uint32_t cwp;      /* index of current register window (extracted
                           from PSR) */
     uint32_t wim;      /* window invalid mask */
     target_ulong tbr;  /* trap base register */
     int      psrs;     /* supervisor mode (extracted from PSR) */
     int      psrps;    /* previous supervisor mode */
     int      psret;    /* enable traps */
     uint32_t psrpil;   /* interrupt blocking level */
     uint32_t pil_in;   /* incoming interrupt level bitmap */
     int      psref;    /* enable fpu */
     target_ulong version;
     int interrupt_index;
     uint32_t nwindows;
     /* NOTE: we allow 8 more registers to handle wrapping */
     target_ulong regbase[MAX_NWINDOWS * 16 + 8];

     CPU_COMMON

     /* MMU regs */
 #if defined(TARGET_SPARC64)
     uint64_t lsu;
 #define DMMU_E 0x8
 #define IMMU_E 0x4
     uint64_t immuregs[16];
     uint64_t dmmuregs[16];
     uint64_t itlb_tag[64];
     uint64_t itlb_tte[64];
     uint64_t dtlb_tag[64];
     uint64_t dtlb_tte[64];
     uint32_t mmu_version;
 #else
     uint32_t mmuregs[32];
     uint64_t mxccdata[4];
     uint64_t mxccregs[8];
     uint64_t mmubpregs[4];
     uint64_t prom_addr;
 #endif
     /* temporary float registers */
     float64 dt0, dt1;
     float128 qt0, qt1;
     float_status fp_status;
 #if defined(TARGET_SPARC64)
 #define MAXTL_MAX 8
 #define MAXTL_MASK (MAXTL_MAX - 1)
     trap_state *tsptr;
     trap_state ts[MAXTL_MAX];
     uint32_t xcc;               /* Extended integer condition codes */
     uint32_t asi;
     uint32_t pstate;
     uint32_t tl;
     uint32_t maxtl;
     uint32_t cansave, canrestore, otherwin, wstate, cleanwin;
     uint64_t agregs[8]; /* alternate general registers */
     uint64_t bgregs[8]; /* backup for normal global registers */
     uint64_t igregs[8]; /* interrupt general registers */
     uint64_t mgregs[8]; /* mmu general registers */
     uint64_t fprs;
     uint64_t tick_cmpr, stick_cmpr;
     void *tick, *stick;
     uint64_t gsr;
     uint32_t gl; // UA2005
     /* UA 2005 hyperprivileged registers */
     uint64_t hpstate, htstate[MAXTL_MAX], hintp, htba, hver, hstick_cmpr, ssr;
     void *hstick; // UA 2005
     uint32_t softint;
 #define SOFTINT_TIMER   1
 #define SOFTINT_STIMER  (1 << 16)
 #endif
     sparc_def_t *def;
 } CPUSPARCState;

 /* helper.c */
 CPUSPARCState *cpu_sparc_init(const char *cpu_model);
 void cpu_sparc_set_id(CPUSPARCState *env, unsigned int cpu);
 void sparc_cpu_list (FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt,
                                                  ...));
 void cpu_lock(void);
 void cpu_unlock(void);
 int cpu_sparc_handle_mmu_fault(CPUSPARCState *env1, target_ulong address, int rw,
                                int mmu_idx, int is_softmmu);
 target_ulong mmu_probe(CPUSPARCState *env, target_ulong address, int mmulev);
 void dump_mmu(CPUSPARCState *env);

 /* translate.c */
 void gen_intermediate_code_init(CPUSPARCState *env);

 /* cpu-exec.c */
 int cpu_sparc_exec(CPUSPARCState *s);

 #define GET_PSR(env) (env->version | (env->psr & PSR_ICC) |             \
                       (env->psref? PSR_EF : 0) |                        \
                       (env->psrpil << 8) |                              \
                       (env->psrs? PSR_S : 0) |                          \
                       (env->psrps? PSR_PS : 0) |                        \
                       (env->psret? PSR_ET : 0) | env->cwp)

 #ifndef NO_CPU_IO_DEFS
 static inline void memcpy32(target_ulong *dst, const target_ulong *src)
 {
     dst[0] = src[0];
     dst[1] = src[1];
     dst[2] = src[2];
     dst[3] = src[3];
     dst[4] = src[4];
     dst[5] = src[5];
     dst[6] = src[6];
     dst[7] = src[7];
 }

 static inline void cpu_set_cwp(CPUSPARCState *env1, int new_cwp)
 {
     /* put the modified wrap registers at their proper location */
     if (env1->cwp == env1->nwindows - 1)
         memcpy32(env1->regbase, env1->regbase + env1->nwindows * 16);
     env1->cwp = new_cwp;
     /* put the wrap registers at their temporary location */
     if (new_cwp == env1->nwindows - 1)
         memcpy32(env1->regbase + env1->nwindows * 16, env1->regbase);
     env1->regwptr = env1->regbase + (new_cwp * 16);
 }

 static inline int cpu_cwp_inc(CPUSPARCState *env1, int cwp)
 {
     if (unlikely(cwp >= env1->nwindows))
         cwp -= env1->nwindows;
     return cwp;
 }

 static inline int cpu_cwp_dec(CPUSPARCState *env1, int cwp)
 {
     if (unlikely(cwp < 0))
         cwp += env1->nwindows;
     return cwp;
 }
 #endif

 #define PUT_PSR(env, val) do { int _tmp = val;                          \
         env->psr = _tmp & PSR_ICC;                                      \
         env->psref = (_tmp & PSR_EF)? 1 : 0;                            \
         env->psrpil = (_tmp & PSR_PIL) >> 8;                            \
         env->psrs = (_tmp & PSR_S)? 1 : 0;                              \
         env->psrps = (_tmp & PSR_PS)? 1 : 0;                            \
         env->psret = (_tmp & PSR_ET)? 1 : 0;                            \
         cpu_set_cwp(env, _tmp & PSR_CWP);                               \
     } while (0)

 #ifdef TARGET_SPARC64
 #define GET_CCR(env) (((env->xcc >> 20) << 4) | ((env->psr & PSR_ICC) >> 20))
 #define PUT_CCR(env, val) do { int _tmp = val;                          \
         env->xcc = (_tmp >> 4) << 20;                                   \
         env->psr = (_tmp & 0xf) << 20;                                  \
     } while (0)
 #define GET_CWP64(env) (env->nwindows - 1 - (env)->cwp)

 #ifndef NO_CPU_IO_DEFS
 static inline void PUT_CWP64(CPUSPARCState *env1, int cwp)
 {
     if (unlikely(cwp >= env1->nwindows || cwp < 0))
         cwp = 0;
     cpu_set_cwp(env1, env1->nwindows - 1 - cwp);
 }
 #endif
 #endif

 /* cpu-exec.c */
 void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
                           int is_asi, int size);
 int cpu_sparc_signal_handler(int host_signum, void *pinfo, void *puc);

 #define CPUState CPUSPARCState
 #define cpu_init cpu_sparc_init
 #define cpu_exec cpu_sparc_exec
 #define cpu_gen_code cpu_sparc_gen_code
 #define cpu_signal_handler cpu_sparc_signal_handler
 #define cpu_list sparc_cpu_list

 #define CPU_SAVE_VERSION 5

 /* MMU modes definitions */
 #define MMU_MODE0_SUFFIX _user
 #define MMU_MODE1_SUFFIX _kernel
 #ifdef TARGET_SPARC64
 #define MMU_MODE2_SUFFIX _hypv
 #endif
 #define MMU_USER_IDX   0
 #define MMU_KERNEL_IDX 1
 #define MMU_HYPV_IDX   2

 static inline int cpu_mmu_index(CPUState *env1)
 {
 #if defined(CONFIG_USER_ONLY)
     return MMU_USER_IDX;
 #elif !defined(TARGET_SPARC64)
     return env1->psrs;
 #else
     if (!env1->psrs)
         return MMU_USER_IDX;
     else if ((env1->hpstate & HS_PRIV) == 0)
         return MMU_KERNEL_IDX;
     else
         return MMU_HYPV_IDX;
 #endif
 }

 static inline int cpu_fpu_enabled(CPUState *env1)
 {
 #if defined(CONFIG_USER_ONLY)
     return 1;
 #elif !defined(TARGET_SPARC64)
     return env1->psref;
 #else
     return ((env1->pstate & PS_PEF) != 0) && ((env1->fprs & FPRS_FEF) != 0);
 #endif
 }

 #if defined(CONFIG_USER_ONLY)
 static inline void cpu_clone_regs(CPUState *env, target_ulong newsp)
 {
     if (newsp)
         env->regwptr[22] = newsp;
     env->regwptr[0] = 0;
     /* FIXME: Do we also need to clear CF?  */
     /* XXXXX */
     printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
 }
 #endif

 #include "cpu-all.h"
 #include "exec-all.h"

 /* sum4m.c, sun4u.c */
 void cpu_check_irqs(CPUSPARCState *env);

 #ifdef TARGET_SPARC64
 /* sun4u.c */
 void cpu_tick_set_count(void *opaque, uint64_t count);
 uint64_t cpu_tick_get_count(void *opaque);
 void cpu_tick_set_limit(void *opaque, uint64_t limit);
 #endif

 static inline void cpu_pc_from_tb(CPUState *env, TranslationBlock *tb)
 {
     env->pc = tb->pc;
     env->npc = tb->cs_base;
 }

 static inline void cpu_get_tb_cpu_state(CPUState *env, target_ulong *pc,
                                         target_ulong *cs_base, int *flags)
 {
     *pc = env->pc;
     *cs_base = env->npc;
 #ifdef TARGET_SPARC64
     // AM . Combined FPU enable bits . PRIV . DMMU enabled . IMMU enabled
     *flags = ((env->pstate & PS_AM) << 2)
         | (((env->pstate & PS_PEF) >> 1) | ((env->fprs & FPRS_FEF) << 2))
         | (env->pstate & PS_PRIV) | ((env->lsu & (DMMU_E | IMMU_E)) >> 2);
 #else
     // FPU enable . Supervisor
     *flags = (env->psref << 4) | env->psrs;
 #endif
 }

 #endif
	#ifndef CPU_SPARC_H
	#define CPU_SPARC_H

	#include "config.h"

	#if !defined(TARGET_SPARC64)
	#define TARGET_LONG_BITS 32
	#define TARGET_FPREGS 32
	#define TARGET_PAGE_BITS 12 /* 4k */
	#else
	#define TARGET_LONG_BITS 64
	#define TARGET_FPREGS 64
	#define TARGET_PAGE_BITS 13 /* 8k */
	#endif

	#define TARGET_PHYS_ADDR_BITS 64

	#include "cpu-defs.h"

	#include "softfloat.h"

	#define TARGET_HAS_ICE 1

	#if !defined(TARGET_SPARC64)
	#define ELF_MACHINE EM_SPARC
	#else
	#define ELF_MACHINE EM_SPARCV9
	#endif

	/#define EXCP_INTERRUPT 0x100/

	/* trap definitions */
	#ifndef TARGET_SPARC64
	#define TT_TFAULT 0x01
	#define TT_ILL_INSN 0x02
	#define TT_PRIV_INSN 0x03
	#define TT_NFPU_INSN 0x04
	#define TT_WIN_OVF 0x05
	#define TT_WIN_UNF 0x06
	#define TT_UNALIGNED 0x07
	#define TT_FP_EXCP 0x08
	#define TT_DFAULT 0x09
	#define TT_TOVF 0x0a
	#define TT_EXTINT 0x10
	#define TT_CODE_ACCESS 0x21
	#define TT_UNIMP_FLUSH 0x25
	#define TT_DATA_ACCESS 0x29
	#define TT_DIV_ZERO 0x2a
	#define TT_NCP_INSN 0x24
	#define TT_TRAP 0x80
	#else
	#define TT_TFAULT 0x08
	#define TT_CODE_ACCESS 0x0a
	#define TT_ILL_INSN 0x10
	#define TT_UNIMP_FLUSH TT_ILL_INSN
	#define TT_PRIV_INSN 0x11
	#define TT_NFPU_INSN 0x20
	#define TT_FP_EXCP 0x21
	#define TT_TOVF 0x23
	#define TT_CLRWIN 0x24
	#define TT_DIV_ZERO 0x28
	#define TT_DFAULT 0x30
	#define TT_DATA_ACCESS 0x32
	#define TT_UNALIGNED 0x34
	#define TT_PRIV_ACT 0x37
	#define TT_EXTINT 0x40
	#define TT_IVEC 0x60
	#define TT_TMISS 0x64
	#define TT_DMISS 0x68
	#define TT_DPROT 0x6c
	#define TT_SPILL 0x80
	#define TT_FILL 0xc0
	#define TT_WOTHER 0x10
	#define TT_TRAP 0x100
	#endif

	#define PSR_NEG_SHIFT 23
	#define PSR_NEG (1 << PSR_NEG_SHIFT)
	#define PSR_ZERO_SHIFT 22
	#define PSR_ZERO (1 << PSR_ZERO_SHIFT)
	#define PSR_OVF_SHIFT 21
	#define PSR_OVF (1 << PSR_OVF_SHIFT)
	#define PSR_CARRY_SHIFT 20
	#define PSR_CARRY (1 << PSR_CARRY_SHIFT)
	#define PSR_ICC (PSR_NEG\|PSR_ZERO\|PSR_OVF\|PSR_CARRY)
	#define PSR_EF (1<<12)
	#define PSR_PIL 0xf00
	#define PSR_S (1<<7)
	#define PSR_PS (1<<6)
	#define PSR_ET (1<<5)
	#define PSR_CWP 0x1f

	/* Trap base register */
	#define TBR_BASE_MASK 0xfffff000

	#if defined(TARGET_SPARC64)
	#define PS_IG (1<<11)
	#define PS_MG (1<<10)
	#define PS_RMO (1<<7)
	#define PS_RED (1<<5)
	#define PS_PEF (1<<4)
	#define PS_AM (1<<3)
	#define PS_PRIV (1<<2)
	#define PS_IE (1<<1)
	#define PS_AG (1<<0)

	#define FPRS_FEF (1<<2)

	#define HS_PRIV (1<<2)
	#endif

	/* Fcc */
	#define FSR_RD1 (1ULL << 31)
	#define FSR_RD0 (1ULL << 30)
	#define FSR_RD_MASK (FSR_RD1 \| FSR_RD0)
	#define FSR_RD_NEAREST 0
	#define FSR_RD_ZERO FSR_RD0
	#define FSR_RD_POS FSR_RD1
	#define FSR_RD_NEG (FSR_RD1 \| FSR_RD0)

	#define FSR_NVM (1ULL << 27)
	#define FSR_OFM (1ULL << 26)
	#define FSR_UFM (1ULL << 25)
	#define FSR_DZM (1ULL << 24)
	#define FSR_NXM (1ULL << 23)
	#define FSR_TEM_MASK (FSR_NVM \| FSR_OFM \| FSR_UFM \| FSR_DZM \| FSR_NXM)

	#define FSR_NVA (1ULL << 9)
	#define FSR_OFA (1ULL << 8)
	#define FSR_UFA (1ULL << 7)
	#define FSR_DZA (1ULL << 6)
	#define FSR_NXA (1ULL << 5)
	#define FSR_AEXC_MASK (FSR_NVA \| FSR_OFA \| FSR_UFA \| FSR_DZA \| FSR_NXA)

	#define FSR_NVC (1ULL << 4)
	#define FSR_OFC (1ULL << 3)
	#define FSR_UFC (1ULL << 2)
	#define FSR_DZC (1ULL << 1)
	#define FSR_NXC (1ULL << 0)
	#define FSR_CEXC_MASK (FSR_NVC \| FSR_OFC \| FSR_UFC \| FSR_DZC \| FSR_NXC)

	#define FSR_FTT2 (1ULL << 16)
	#define FSR_FTT1 (1ULL << 15)
	#define FSR_FTT0 (1ULL << 14)
	//gcc warns about constant overflow for ~FSR_FTT_MASK
	//#define FSR_FTT_MASK (FSR_FTT2 \| FSR_FTT1 \| FSR_FTT0)
	#ifdef TARGET_SPARC64
	#define FSR_FTT_NMASK 0xfffffffffffe3fffULL
	#define FSR_FTT_CEXC_NMASK 0xfffffffffffe3fe0ULL
	#define FSR_LDFSR_OLDMASK 0x0000003f000fc000ULL
	#define FSR_LDXFSR_MASK 0x0000003fcfc00fffULL
	#define FSR_LDXFSR_OLDMASK 0x00000000000fc000ULL
	#else
	#define FSR_FTT_NMASK 0xfffe3fffULL
	#define FSR_FTT_CEXC_NMASK 0xfffe3fe0ULL
	#define FSR_LDFSR_OLDMASK 0x000fc000ULL
	#endif
	#define FSR_LDFSR_MASK 0xcfc00fffULL
	#define FSR_FTT_IEEE_EXCP (1ULL << 14)
	#define FSR_FTT_UNIMPFPOP (3ULL << 14)
	#define FSR_FTT_SEQ_ERROR (4ULL << 14)
	#define FSR_FTT_INVAL_FPR (6ULL << 14)

	#define FSR_FCC1_SHIFT 11
	#define FSR_FCC1 (1ULL << FSR_FCC1_SHIFT)
	#define FSR_FCC0_SHIFT 10
	#define FSR_FCC0 (1ULL << FSR_FCC0_SHIFT)

	/* MMU */
	#define MMU_E (1<<0)
	#define MMU_NF (1<<1)

	#define PTE_ENTRYTYPE_MASK 3
	#define PTE_ACCESS_MASK 0x1c
	#define PTE_ACCESS_SHIFT 2
	#define PTE_PPN_SHIFT 7
	#define PTE_ADDR_MASK 0xffffff00

	#define PG_ACCESSED_BIT 5
	#define PG_MODIFIED_BIT 6
	#define PG_CACHE_BIT 7

	#define PG_ACCESSED_MASK (1 << PG_ACCESSED_BIT)
	#define PG_MODIFIED_MASK (1 << PG_MODIFIED_BIT)
	#define PG_CACHE_MASK (1 << PG_CACHE_BIT)

	/* 3 <= NWINDOWS <= 32. */
	#define MIN_NWINDOWS 3
	#define MAX_NWINDOWS 32

	#if !defined(TARGET_SPARC64)
	#define NB_MMU_MODES 2
	#else
	#define NB_MMU_MODES 3
	typedef struct trap_state {
	uint64_t tpc;
	uint64_t tnpc;
	uint64_t tstate;
	uint32_t tt;
	} trap_state;
	#endif

	typedef struct sparc_def_t {
	const char *name;
	target_ulong iu_version;
	uint32_t fpu_version;
	uint32_t mmu_version;
	uint32_t mmu_bm;
	uint32_t mmu_ctpr_mask;
	uint32_t mmu_cxr_mask;
	uint32_t mmu_sfsr_mask;
	uint32_t mmu_trcr_mask;
	uint32_t mxcc_version;
	uint32_t features;
	uint32_t nwindows;
	uint32_t maxtl;
	} sparc_def_t;

	#define CPU_FEATURE_FLOAT (1 << 0)
	#define CPU_FEATURE_FLOAT128 (1 << 1)
	#define CPU_FEATURE_SWAP (1 << 2)
	#define CPU_FEATURE_MUL (1 << 3)
	#define CPU_FEATURE_DIV (1 << 4)
	#define CPU_FEATURE_FLUSH (1 << 5)
	#define CPU_FEATURE_FSQRT (1 << 6)
	#define CPU_FEATURE_FMUL (1 << 7)
	#define CPU_FEATURE_VIS1 (1 << 8)
	#define CPU_FEATURE_VIS2 (1 << 9)
	#define CPU_FEATURE_FSMULD (1 << 10)
	#define CPU_FEATURE_HYPV (1 << 11)
	#define CPU_FEATURE_CMT (1 << 12)
	#define CPU_FEATURE_GL (1 << 13)
	#ifndef TARGET_SPARC64
	#define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT \| CPU_FEATURE_SWAP \| \
	CPU_FEATURE_MUL \| CPU_FEATURE_DIV \| \
	CPU_FEATURE_FLUSH \| CPU_FEATURE_FSQRT \| \
	CPU_FEATURE_FMUL \| CPU_FEATURE_FSMULD)
	#else
	#define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT \| CPU_FEATURE_SWAP \| \
	CPU_FEATURE_MUL \| CPU_FEATURE_DIV \| \
	CPU_FEATURE_FLUSH \| CPU_FEATURE_FSQRT \| \
	CPU_FEATURE_FMUL \| CPU_FEATURE_VIS1 \| \
	CPU_FEATURE_VIS2 \| CPU_FEATURE_FSMULD)
	enum {
	mmu_us_12, // Ultrasparc < III (64 entry TLB)
	mmu_us_3, // Ultrasparc III (512 entry TLB)
	mmu_us_4, // Ultrasparc IV (several TLBs, 32 and 256MB pages)
	mmu_sun4v, // T1, T2
	};
	#endif

	typedef struct CPUSPARCState {
	target_ulong gregs[8]; /* general registers */
	target_ulong regwptr; / pointer to current register window */
	target_ulong pc; /* program counter */
	target_ulong npc; /* next program counter */
	target_ulong y; /* multiply/divide register */

	/* emulator internal flags handling */
	target_ulong cc_src, cc_src2;
	target_ulong cc_dst;

	target_ulong t0, t1; /* temporaries live across basic blocks */
	target_ulong cond; /* conditional branch result (XXX: save it in a
	temporary register when possible) */

	uint32_t psr; /* processor state register */
	target_ulong fsr; /* FPU state register */
	float32 fpr[TARGET_FPREGS]; /* floating point registers */
	uint32_t cwp; /* index of current register window (extracted
	from PSR) */
	uint32_t wim; /* window invalid mask */
	target_ulong tbr; /* trap base register */
	int psrs; /* supervisor mode (extracted from PSR) */
	int psrps; /* previous supervisor mode */
	int psret; /* enable traps */
	uint32_t psrpil; /* interrupt blocking level */
	uint32_t pil_in; /* incoming interrupt level bitmap */
	int psref; /* enable fpu */
	target_ulong version;
	int interrupt_index;
	uint32_t nwindows;
	/* NOTE: we allow 8 more registers to handle wrapping */
	target_ulong regbase[MAX_NWINDOWS * 16 + 8];

	CPU_COMMON

	/* MMU regs */
	#if defined(TARGET_SPARC64)
	uint64_t lsu;
	#define DMMU_E 0x8
	#define IMMU_E 0x4
	uint64_t immuregs[16];
	uint64_t dmmuregs[16];
	uint64_t itlb_tag[64];
	uint64_t itlb_tte[64];
	uint64_t dtlb_tag[64];
	uint64_t dtlb_tte[64];
	uint32_t mmu_version;
	#else
	uint32_t mmuregs[32];
	uint64_t mxccdata[4];
	uint64_t mxccregs[8];
	uint64_t mmubpregs[4];
	uint64_t prom_addr;
	#endif
	/* temporary float registers */
	float64 dt0, dt1;
	float128 qt0, qt1;
	float_status fp_status;
	#if defined(TARGET_SPARC64)
	#define MAXTL_MAX 8
	#define MAXTL_MASK (MAXTL_MAX - 1)
	trap_state *tsptr;
	trap_state ts[MAXTL_MAX];
	uint32_t xcc; /* Extended integer condition codes */
	uint32_t asi;
	uint32_t pstate;
	uint32_t tl;
	uint32_t maxtl;
	uint32_t cansave, canrestore, otherwin, wstate, cleanwin;
	uint64_t agregs[8]; /* alternate general registers */
	uint64_t bgregs[8]; /* backup for normal global registers */
	uint64_t igregs[8]; /* interrupt general registers */
	uint64_t mgregs[8]; /* mmu general registers */
	uint64_t fprs;
	uint64_t tick_cmpr, stick_cmpr;
	void tick, stick;
	uint64_t gsr;
	uint32_t gl; // UA2005
	/* UA 2005 hyperprivileged registers */
	uint64_t hpstate, htstate[MAXTL_MAX], hintp, htba, hver, hstick_cmpr, ssr;
	void *hstick; // UA 2005
	uint32_t softint;
	#define SOFTINT_TIMER 1
	#define SOFTINT_STIMER (1 << 16)
	#endif
	sparc_def_t *def;
	} CPUSPARCState;

	/* helper.c */
	CPUSPARCState cpu_sparc_init(const char cpu_model);
	void cpu_sparc_set_id(CPUSPARCState *env, unsigned int cpu);
	void sparc_cpu_list (FILE f, int (cpu_fprintf)(FILE f, const char fmt,
	...));
	void cpu_lock(void);
	void cpu_unlock(void);
	int cpu_sparc_handle_mmu_fault(CPUSPARCState *env1, target_ulong address, int rw,
	int mmu_idx, int is_softmmu);
	target_ulong mmu_probe(CPUSPARCState *env, target_ulong address, int mmulev);
	void dump_mmu(CPUSPARCState *env);

	/* translate.c */
	void gen_intermediate_code_init(CPUSPARCState *env);

	/* cpu-exec.c */
	int cpu_sparc_exec(CPUSPARCState *s);

	#define GET_PSR(env) (env->version \| (env->psr & PSR_ICC) \| \
	(env->psref? PSR_EF : 0) \| \
	(env->psrpil << 8) \| \
	(env->psrs? PSR_S : 0) \| \
	(env->psrps? PSR_PS : 0) \| \
	(env->psret? PSR_ET : 0) \| env->cwp)

	#ifndef NO_CPU_IO_DEFS
	static inline void memcpy32(target_ulong dst, const target_ulong src)
	{
	dst[0] = src[0];
	dst[1] = src[1];
	dst[2] = src[2];
	dst[3] = src[3];
	dst[4] = src[4];
	dst[5] = src[5];
	dst[6] = src[6];
	dst[7] = src[7];
	}

	static inline void cpu_set_cwp(CPUSPARCState *env1, int new_cwp)
	{
	/* put the modified wrap registers at their proper location */
	if (env1->cwp == env1->nwindows - 1)
	memcpy32(env1->regbase, env1->regbase + env1->nwindows * 16);
	env1->cwp = new_cwp;
	/* put the wrap registers at their temporary location */
	if (new_cwp == env1->nwindows - 1)
	memcpy32(env1->regbase + env1->nwindows * 16, env1->regbase);
	env1->regwptr = env1->regbase + (new_cwp * 16);
	}

	static inline int cpu_cwp_inc(CPUSPARCState *env1, int cwp)
	{
	if (unlikely(cwp >= env1->nwindows))
	cwp -= env1->nwindows;
	return cwp;
	}

	static inline int cpu_cwp_dec(CPUSPARCState *env1, int cwp)
	{
	if (unlikely(cwp < 0))
	cwp += env1->nwindows;
	return cwp;
	}
	#endif

	#define PUT_PSR(env, val) do { int _tmp = val; \
	env->psr = _tmp & PSR_ICC; \
	env->psref = (_tmp & PSR_EF)? 1 : 0; \
	env->psrpil = (_tmp & PSR_PIL) >> 8; \
	env->psrs = (_tmp & PSR_S)? 1 : 0; \
	env->psrps = (_tmp & PSR_PS)? 1 : 0; \
	env->psret = (_tmp & PSR_ET)? 1 : 0; \
	cpu_set_cwp(env, _tmp & PSR_CWP); \
	} while (0)

	#ifdef TARGET_SPARC64
	#define GET_CCR(env) (((env->xcc >> 20) << 4) \| ((env->psr & PSR_ICC) >> 20))
	#define PUT_CCR(env, val) do { int _tmp = val; \
	env->xcc = (_tmp >> 4) << 20; \
	env->psr = (_tmp & 0xf) << 20; \
	} while (0)
	#define GET_CWP64(env) (env->nwindows - 1 - (env)->cwp)

	#ifndef NO_CPU_IO_DEFS
	static inline void PUT_CWP64(CPUSPARCState *env1, int cwp)
	{
	if (unlikely(cwp >= env1->nwindows \|\| cwp < 0))
	cwp = 0;
	cpu_set_cwp(env1, env1->nwindows - 1 - cwp);
	}
	#endif
	#endif

	/* cpu-exec.c */
	void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
	int is_asi, int size);
	int cpu_sparc_signal_handler(int host_signum, void pinfo, void puc);

	#define CPUState CPUSPARCState
	#define cpu_init cpu_sparc_init
	#define cpu_exec cpu_sparc_exec
	#define cpu_gen_code cpu_sparc_gen_code
	#define cpu_signal_handler cpu_sparc_signal_handler
	#define cpu_list sparc_cpu_list

	#define CPU_SAVE_VERSION 5

	/* MMU modes definitions */
	#define MMU_MODE0_SUFFIX _user
	#define MMU_MODE1_SUFFIX _kernel
	#ifdef TARGET_SPARC64
	#define MMU_MODE2_SUFFIX _hypv
	#endif
	#define MMU_USER_IDX 0
	#define MMU_KERNEL_IDX 1
	#define MMU_HYPV_IDX 2

	static inline int cpu_mmu_index(CPUState *env1)
	{
	#if defined(CONFIG_USER_ONLY)
	return MMU_USER_IDX;
	#elif !defined(TARGET_SPARC64)
	return env1->psrs;
	#else
	if (!env1->psrs)
	return MMU_USER_IDX;
	else if ((env1->hpstate & HS_PRIV) == 0)
	return MMU_KERNEL_IDX;
	else
	return MMU_HYPV_IDX;
	#endif
	}

	static inline int cpu_fpu_enabled(CPUState *env1)
	{
	#if defined(CONFIG_USER_ONLY)
	return 1;
	#elif !defined(TARGET_SPARC64)
	return env1->psref;
	#else
	return ((env1->pstate & PS_PEF) != 0) && ((env1->fprs & FPRS_FEF) != 0);
	#endif
	}

	#if defined(CONFIG_USER_ONLY)
	static inline void cpu_clone_regs(CPUState *env, target_ulong newsp)
	{
	if (newsp)
	env->regwptr[22] = newsp;
	env->regwptr[0] = 0;
	/* FIXME: Do we also need to clear CF? */
	/* XXXXX */
	printf ("HELPME: %s:%d\n", __FILE__, __LINE__);
	}
	#endif

	#include "cpu-all.h"
	#include "exec-all.h"

	/* sum4m.c, sun4u.c */
	void cpu_check_irqs(CPUSPARCState *env);

	#ifdef TARGET_SPARC64
	/* sun4u.c */
	void cpu_tick_set_count(void *opaque, uint64_t count);
	uint64_t cpu_tick_get_count(void *opaque);
	void cpu_tick_set_limit(void *opaque, uint64_t limit);
	#endif

	static inline void cpu_pc_from_tb(CPUState env, TranslationBlock tb)
	{
	env->pc = tb->pc;
	env->npc = tb->cs_base;
	}

	static inline void cpu_get_tb_cpu_state(CPUState env, target_ulong pc,
	target_ulong cs_base, int flags)
	{
	*pc = env->pc;
	*cs_base = env->npc;
	#ifdef TARGET_SPARC64
	// AM . Combined FPU enable bits . PRIV . DMMU enabled . IMMU enabled
	*flags = ((env->pstate & PS_AM) << 2)
	\| (((env->pstate & PS_PEF) >> 1) \| ((env->fprs & FPRS_FEF) << 2))
	\| (env->pstate & PS_PRIV) \| ((env->lsu & (DMMU_E \| IMMU_E)) >> 2);
	#else
	// FPU enable . Supervisor
	*flags = (env->psref << 4) \| env->psrs;
	#endif
	}

	#endif