text: #ifndef R2_REG_H
  #define R2_REG_H
  
  #include <r_types.h>
  #include <r_list.h>
  #include <r_util/r_hex.h>
  #include <r_util/r_assert.h>
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  R_LIB_VERSION_HEADER (r_reg);
  
  /*
   * various CPUs have registers within various types/classes
   * this enum aims to cover them all.
   */
  typedef enum {
  	R_REG_TYPE_GPR,
  	R_REG_TYPE_DRX,
  	R_REG_TYPE_FPU,
  	R_REG_TYPE_MMX,
  	R_REG_TYPE_XMM,
  	R_REG_TYPE_YMM,
  	R_REG_TYPE_FLG,
  	R_REG_TYPE_SEG,
  	R_REG_TYPE_LAST,
  	R_REG_TYPE_ALL = -1, // TODO; rename to ANY
  } RRegisterType;
  
  /*
   * pretty much all CPUs share some common registers
   * this enum aims to create an abstraction to ease cross-arch handling.
   */
  typedef enum {
  	R_REG_NAME_PC, // program counter
  	R_REG_NAME_SP, // stack pointer
  	R_REG_NAME_SR, // status register
  	R_REG_NAME_BP, // base pointer
  	R_REG_NAME_LR, // link register
  	/* args */
  	R_REG_NAME_A0, // arguments
  	R_REG_NAME_A1,
  	R_REG_NAME_A2,
  	R_REG_NAME_A3,
  	R_REG_NAME_A4,
  	R_REG_NAME_A5,
  	R_REG_NAME_A6,
  	R_REG_NAME_A7,
  	R_REG_NAME_A8,
  	R_REG_NAME_A9,
  	/* retval */
  	R_REG_NAME_R0, // return registers
  	R_REG_NAME_R1,
  	R_REG_NAME_R2,
  	R_REG_NAME_R3,
  	/* flags */
  	R_REG_NAME_ZF,
  	R_REG_NAME_SF,
  	R_REG_NAME_CF,
  	R_REG_NAME_OF,
  	/* syscall number (orig_eax,rax,r0,x0) */
  	R_REG_NAME_SN,
  	R_REG_NAME_LAST,
  } RRegisterId;
  
  // TODO: use enum here?
  #define R_REG_COND_EQ 0
  #define R_REG_COND_NE 1
  #define R_REG_COND_CF 2
  #define R_REG_COND_CARRY 2
  #define R_REG_COND_NEG 3
  #define R_REG_COND_NEGATIVE 3
  #define R_REG_COND_OF 4
  #define R_REG_COND_OVERFLOW 4
  // unsigned
  #define R_REG_COND_HI 5
  #define R_REG_COND_HE 6
  #define R_REG_COND_LO 7
  #define R_REG_COND_LOE 8
  // signed
  #define R_REG_COND_GE 9
  #define R_REG_COND_GT 10
  #define R_REG_COND_LT 11
  #define R_REG_COND_LE 12
  #define R_REG_COND_LAST 13
  
  typedef struct r_reg_item_t {
  	char *name;
  	int /*RRegisterType*/ type;
  	int size;	/* 8,16,32,64 ... 128/256 ??? */
  	int offset;      /* offset in data structure */
  	int packed_size; /* 0 means no packed register, 1byte pack, 2b pack... */
  	bool is_float;
  	char *flags;
  	char *comment;
  	int index;
  	int arena; /* in which arena is this reg living */
  } RRegItem;
  
  typedef struct r_reg_arena_t {
  	ut8 *bytes;
  	int size;
  } RRegArena;
  
  typedef struct r_reg_set_t {
  	RRegArena *arena;
  	RList *pool;      /* RRegArena */
  	RList *regs;      /* RRegItem */
  	HtPP *ht_regs;    /* name:RRegItem */
  	RListIter *cur;
  	int maskregstype; /* which type of regs have this reg set (logic mask with RRegisterType  R_REG_TYPE_XXX) */
  } RRegSet;
  
  typedef struct r_reg_t {
  	char *profile;
  	char *reg_profile_cmt;
  	char *reg_profile_str;
  	char *name[R_REG_NAME_LAST]; // aliases
  	RRegSet regset[R_REG_TYPE_LAST];
  	RList *allregs;
  	RList *roregs;
  	int iters;
  	int arch;
  	int bits;
  	int size;
  	bool is_thumb;
  	bool big_endian;
  } RReg;
  
  typedef struct r_reg_flags_t {
  	bool s; // sign, negative number (msb)
  	bool z; // zero
  	bool a; // half-carry adjust (if carry happens at nibble level)
  	bool c; // carry
  	bool o; // overflow
  	bool p; // parity (lsb)
  } RRegFlags;
  
  #ifdef R_API
  R_API void r_reg_free(RReg *reg);
  R_API void r_reg_free_internal(RReg *reg, bool init);
  R_API RReg *r_reg_new(void);
  R_API RReg *r_reg_init(RReg *reg);
  R_API bool r_reg_set_name(RReg *reg, int role, const char *name);
  R_API bool r_reg_set_profile_string(RReg *reg, const char *profile);
  R_API char* r_reg_profile_to_cc(RReg *reg);
  R_API bool r_reg_set_profile(RReg *reg, const char *profile);
  R_API char *r_reg_parse_gdb_profile(const char *profile);
  R_API bool r_reg_is_readonly(RReg *reg, RRegItem *item);
  
  R_API RRegSet *r_reg_regset_get(RReg *r, int type);
  R_API ut64 r_reg_getv(RReg *reg, const char *name);
  R_API ut64 r_reg_setv(RReg *reg, const char *name, ut64 val);
  R_API const char *r_reg_32_to_64(RReg *reg, const char *rreg32);
  R_API const char *r_reg_64_to_32(RReg *reg, const char *rreg64);
  R_API const char *r_reg_get_name_by_type(RReg *reg, const char *name);
  R_API const char *r_reg_get_type(int idx);
  R_API const char *r_reg_get_name(RReg *reg, int kind);
  R_API const char *r_reg_get_role(int role);
  R_API RRegItem *r_reg_get(RReg *reg, const char *name, int type);
  R_API RList *r_reg_get_list(RReg *reg, int type);
  R_API RRegItem *r_reg_get_at(RReg *reg, int type, int regsize, int delta);
  R_API RRegItem *r_reg_next_diff(RReg *reg, int type, const ut8 *buf, int buflen, RRegItem *prev_ri, int regsize);
  
  R_API void r_reg_reindex(RReg *reg);
  R_API RRegItem *r_reg_index_get(RReg *reg, int idx);
  
  /* Item */
  R_API void r_reg_item_free(RRegItem *item);
  
  /* XXX: dupped ?? */
  R_API int r_reg_type_by_name(const char *str);
  R_API int r_reg_get_name_idx(const char *type);
  
  R_API RRegItem *r_reg_cond_get(RReg *reg, const char *name);
  R_API void r_reg_cond_apply(RReg *r, RRegFlags *f);
  R_API bool r_reg_cond_set(RReg *reg, const char *name, bool val);
  R_API int r_reg_cond_get_value(RReg *r, const char *name);
  R_API bool r_reg_cond_bits_set(RReg *r, int type, RRegFlags *f, bool v);
  R_API int r_reg_cond_bits(RReg *r, int type, RRegFlags *f);
  R_API RRegFlags *r_reg_cond_retrieve(RReg *r, RRegFlags *);
  R_API int r_reg_cond(RReg *r, int type);
  
  /* integer value 8-64 bits */
  R_API ut64 r_reg_get_value(RReg *reg, RRegItem *item);
  R_API ut64 r_reg_get_value_big(RReg *reg, RRegItem *item, utX *val);
  R_API ut64 r_reg_get_value_by_role(RReg *reg, RRegisterId role);
  R_API bool r_reg_set_value(RReg *reg, RRegItem *item, ut64 value);
  R_API bool r_reg_set_value_by_role(RReg *reg, RRegisterId role, ut64 value);
  
  /* float */
  R_API float r_reg_get_float(RReg *reg, RRegItem *item);
  R_API bool r_reg_set_float(RReg *reg, RRegItem *item, float value);
  
  /* double */
  R_API double r_reg_get_double(RReg *reg, RRegItem *item);
  R_API bool r_reg_set_double(RReg *reg, RRegItem *item, double value);
  
  /* long double */
  R_API long double r_reg_get_longdouble(RReg *reg, RRegItem *item);
  R_API bool r_reg_set_longdouble(RReg *reg, RRegItem *item, long double value);
  
  /* boolean */
  R_API char *r_reg_get_bvalue(RReg *reg, RRegItem *item);
  R_API ut64 r_reg_set_bvalue(RReg *reg, RRegItem *item, const char *str);
  
  /* packed registers */
  R_API int r_reg_set_pack(RReg *reg, RRegItem *item, int packidx, int packbits, ut64 val);
  R_API ut64 r_reg_get_pack(RReg *reg, RRegItem *item, int packidx, int packbits);
  
  /* byte arena */
  R_API ut8 *r_reg_get_bytes(RReg *reg, int type, int *size);
  R_API bool r_reg_set_bytes(RReg *reg, int type, const ut8 *buf, const int len);
  R_API bool r_reg_read_regs(RReg *reg, ut8 *buf, const int len);
  R_API int r_reg_arena_set_bytes(RReg *reg, const char *str);
  R_API RRegArena *r_reg_arena_new(int size);
  R_API void r_reg_arena_free(RRegArena *ra);
  R_API int r_reg_fit_arena(RReg *reg);
  R_API void r_reg_arena_swap(RReg *reg, int copy);
  R_API int r_reg_arena_push(RReg *reg);
  R_API void r_reg_arena_pop(RReg *reg);
  R_API void r_reg_arena_zero(RReg *reg);
  
  R_API ut8 *r_reg_arena_peek(RReg *reg);
  R_API void r_reg_arena_poke(RReg *reg, const ut8 *buf);
  R_API ut8 *r_reg_arena_dup(RReg *reg, const ut8 *source);
  R_API const char *r_reg_cond_to_string(int n);
  R_API int r_reg_cond_from_string(const char *str);
  R_API void r_reg_arena_shrink(RReg *reg);
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif
  #endif
  