#ifndef _RUNTIME_GECKO_EXCEPTION_PPC_H
#define _RUNTIME_GECKO_EXCEPTION_PPC_H

typedef unsigned char exaction_type;

#define EXACTION_ENDBIT 0x80
#define EXACTION_MASK 0x7F

// EXAction structs

#define EXACTION_ENDOFLIST 0
#define EXACTION_BRANCH 1

typedef struct ex_branch {
    exaction_type action;
    unsigned char unused;
    unsigned short target;
} ex_branch;

#define EXACTION_DESTROYLOCAL 2

typedef struct ex_destroylocal {
    exaction_type action;
    unsigned char unused;
    short local;
    void* dtor;
} ex_destroylocal;

#define EXACTION_DESTROYLOCALCOND 3

typedef struct ex_destroylocalcond {
    exaction_type action;
    unsigned char dlc_field;
    short cond;
    short local;
    void* dtor;
} ex_destroylocalcond;

#define ex_destroylocalcond_MakeField(regcond) (((regcond) << 7))
#define ex_destroylocalcond_GetRegCond(field) ((field) >> 7)

#define EXACTION_DESTROYLOCALPOINTER 4

typedef struct ex_destroylocalpointer {
    exaction_type action;
    unsigned char dlp_field;
    short pointer;
    void* dtor;
} ex_destroylocalpointer;

#define ex_destroylocalpointer_MakeField(regpointer) (((regpointer) << 7))
#define ex_destroylocalpointer_GetRegPointer(field) ((field) >> 7)

#define EXACTION_DESTROYLOCALARRAY 5

typedef struct ex_destroylocalarray {
    exaction_type action;
    unsigned char unused;
    short localarray;
    unsigned short elements;
    unsigned short element_size;
    void* dtor;
} ex_destroylocalarray;

#define EXACTION_DESTROYBASE 6
#define EXACTION_DESTROYMEMBER 7

typedef struct ex_destroymember {
    exaction_type action;
    unsigned char dm_field;
    short objectptr;
    long offset;
    void* dtor;
} ex_destroymember;

#define ex_destroymember_MakeField(regpointer) (((regpointer) << 7))
#define ex_destroymember_GetRegPointer(field) ((field) >> 7)

#define EXACTION_DESTROYMEMBERCOND 8

typedef struct ex_destroymembercond {
    exaction_type action;
    unsigned char dmc_field;
    short cond;
    short objectptr;
    long offset;
    void* dtor;
} ex_destroymembercond;

#define ex_destroymembercond_MakeField(regcond, regpointer) (((regcond) << 7) | (((regpointer) & 0x1) << 6))
#define ex_destroymembercond_GetRegCond(field) ((field) >> 7)
#define ex_destroymembercond_GetRegPointer(field) (((field) >> 6) & 0x1)

#define EXACTION_DESTROYMEMBERARRAY 9

typedef struct ex_destroymemberarray {
    exaction_type action;
    unsigned char dma_field;
    short objectptr;
    long offset;
    long elements;
    long element_size;
    void* dtor;
} ex_destroymemberarray;

#define ex_destroymemberarray_MakeField(regpointer) (((regpointer) << 7))
#define ex_destroymemberarray_GetRegPointer(field) ((field) >> 7)

#define EXACTION_DELETEPOINTER 10

typedef struct ex_deletepointer {
    exaction_type action;
    unsigned char dp_field;
    short objectptr;
    void* deletefunc;
} ex_deletepointer;

#define ex_deletepointer_MakeField(regpointer) (((regpointer) << 7))
#define ex_deletepointer_GetRegPointer(field) ((field) >> 7)

#define EXACTION_DELETEPOINTERCOND 11

typedef struct ex_deletepointercond {
    exaction_type action;
    unsigned char dpc_field;
    short cond;
    short objectptr;
    void* deletefunc;
} ex_deletepointercond;

#define ex_deletepointercond_MakeField(regcond, regpointer) (((regcond) << 7) | (((regpointer) & 0x1) << 6))
#define ex_deletepointercond_GetRegCond(field) ((field) >> 7)
#define ex_deletepointercond_GetRegPointer(field) (((field) >> 6) & 0x1)

#define EXACTION_CATCHBLOCK 12

typedef struct ex_catchblock {
    exaction_type action;
    unsigned char unused;
    char* catch_type;
    unsigned short catch_pcoffset;
    short cinfo_ref;
} ex_catchblock;

#define EXACTION_ACTIVECATCHBLOCK 13

typedef struct ex_activecatchblock {
    exaction_type action;
    unsigned char unused;
    short cinfo_ref;
} ex_activecatchblock;

#define EXACTION_TERMINATE 14

typedef struct ex_terminate {
    exaction_type action;
    unsigned char unused;
} ex_terminate;

#define EXACTION_SPECIFICATION 15

typedef struct ex_specification {
    exaction_type action;
    unsigned char unused;
    unsigned short specs;
    long pcoffset;
    long cinfo_ref;
    char* spec[];
} ex_specification;

#define EXACTION_CATCHBLOCK_32 16

typedef struct ex_catchblock_32 {
    exaction_type action;
    unsigned char unused;
    char* catch_type;
    long catch_pcoffset;
    long cinfo_ref;
} ex_catchblock_32;

// Other structs

typedef struct ExceptionRangeSmall {
    unsigned short start;
    unsigned short end;
    unsigned short action;
} ExceptionRangeSmall;

typedef struct ExceptionTableSmall {
    unsigned short et_field;
    ExceptionRangeSmall ranges[0];
} ExceptionTableSmall;

typedef struct ExceptionRangeLarge {
    unsigned long start;
    unsigned short size;
    unsigned short action;
} ExceptionRangeLarge;

typedef struct ExceptionTableLarge {
    unsigned short et_field;
    unsigned short et_field2;
    ExceptionRangeLarge ranges[];
} ExceptionTableLarge;

#define ET_MakeField(savedGPRs, savedFPRs, savedCR, hasframeptr, isLarge)                                    \
    (((savedGPRs) << 11) | ((savedFPRs & 0x1f) << 6) | ((savedCR & 0x1) << 5) | ((hasframeptr & 0x1) << 4) | \
     ((isLarge & 1) << 3))

#define ET_GetSavedGPRs(field) ((field) >> 11)
#define ET_GetSavedFPRs(field) (((field) >> 6) & 0x1f)
#define ET_GetSavedCR(field) (((field) >> 5) & 0x1)
#define ET_GetHasFramePtr(field) (((field) >> 4) & 0x1)
#define ET_IsLargeTable(field) (((field) >> 3) & 0x1)
#define ET_ClearLargeBit(field) ((field) & ~(1 << 3))
#define ET_SetLargeBit(field) ((field) | (1 << 3))

#define ET_HasElfVector(field) (((field) >> 1) & 0x1)

typedef struct ExceptionTableIndex {
    unsigned long functionoffset;
    unsigned long eti_field;
    unsigned long exceptionoffset;
} ExceptionTableIndex;

#define ETI_MakeField(direct, fsize) ((((long)(direct)) << 31) | ((fsize) & 0x7fffffff))
#define ETI_GetDirectStore(field) ((field) >> 31)
#define ETI_GetFunctionSize(field) ((field) & 0x7fffffff)

#endif