
// this file is shared by quake and qcc

typedef int func_t;
typedef int string_t;

typedef enum { ev_void, ev_string, ev_float, ev_vector, ev_entity,
    ev_field, ev_function, ev_pointer
} etype_t;


#define	OFS_NULL		0
#define	OFS_RETURN		1
#define	OFS_PARM0		4	// leave 3 ofs for each parm to hold vectors
#define	OFS_PARM1		7
#define	OFS_PARM2		10
#define	OFS_PARM3		13
#define	OFS_PARM4		16
#define	OFS_PARM5		19
#define	OFS_PARM6		22
#define	OFS_PARM7		25
#define	RESERVED_OFS	28


enum {
    OP_DONE,
    OP_MUL_F,
    OP_MUL_V,
    OP_MUL_FV,
    OP_MUL_VF,
    OP_DIV_F,
    OP_ADD_F,
    OP_ADD_V,
    OP_SUB_F,
    OP_SUB_V,

    OP_EQ_F,
    OP_EQ_V,
    OP_EQ_S,
    OP_EQ_E,
    OP_EQ_FNC,

    OP_NE_F,
    OP_NE_V,
    OP_NE_S,
    OP_NE_E,
    OP_NE_FNC,

    OP_LE,
    OP_GE,
    OP_LT,
    OP_GT,

    OP_LOAD_F,
    OP_LOAD_V,
    OP_LOAD_S,
    OP_LOAD_ENT,
    OP_LOAD_FLD,
    OP_LOAD_FNC,

    OP_ADDRESS,

    OP_STORE_F,
    OP_STORE_V,
    OP_STORE_S,
    OP_STORE_ENT,
    OP_STORE_FLD,
    OP_STORE_FNC,

    OP_STOREP_F,
    OP_STOREP_V,
    OP_STOREP_S,
    OP_STOREP_ENT,
    OP_STOREP_FLD,
    OP_STOREP_FNC,

    OP_RETURN,
    OP_NOT_F,
    OP_NOT_V,
    OP_NOT_S,
    OP_NOT_ENT,
    OP_NOT_FNC,
    OP_IF,
    OP_IFNOT,
    OP_CALL0,
    OP_CALL1,
    OP_CALL2,
    OP_CALL3,
    OP_CALL4,
    OP_CALL5,
    OP_CALL6,
    OP_CALL7,
    OP_CALL8,
    OP_STATE,
    OP_GOTO,
    OP_AND,
    OP_OR,

    OP_BITAND,
    OP_BITOR
};


typedef struct statement_s {
    unsigned short op;
    short a, b, c;
} dstatement_t;

typedef struct {
    unsigned short type;	// if DEF_SAVEGLOBGAL bit is set
    // the variable needs to be saved in savegames
    unsigned short ofs;
    int s_name;
} ddef_t;
#define	DEF_SAVEGLOBAL	(1<<15)

#define	MAX_PARMS	8

typedef struct {
    int first_statement;	// negative numbers are builtins
    int parm_start;
    int locals;			// total ints of parms + locals

    int profile;		// runtime

    int s_name;
    int s_file;			// source file defined in

    int numparms;
    byte parm_size[MAX_PARMS];
} dfunction_t;


#define	PROG_VERSION	6
typedef struct {
    int version;
    int crc;			// check of header file

    int ofs_statements;
    int numstatements;		// statement 0 is an error

    int ofs_globaldefs;
    int numglobaldefs;

    int ofs_fielddefs;
    int numfielddefs;

    int ofs_functions;
    int numfunctions;		// function 0 is an empty

    int ofs_strings;
    int numstrings;		// first string is a null string

    int ofs_globals;
    int numglobals;

    int entityfields;
} dprograms_t;
