#ifndef MRUBY_OPCODE_H

#define MRUBY_OPCODE_H

#define MAXARG_Bx (0xffff)

#define MAXARG_sBx (MAXARG_Bx>>1) /* 'sBx' is signed */

#define GET_OPCODE(i) ((int)(((mrb_code)(i)) & 0x7f))

#define GETARG_A(i) ((int)((((mrb_code)(i)) >> 23) & 0x1ff))

#define GETARG_B(i) ((int)((((mrb_code)(i)) >> 14) & 0x1ff))

#define GETARG_C(i) ((int)((((mrb_code)(i)) >> 7) & 0x7f))

#define GETARG_Bx(i) ((int)((((mrb_code)(i)) >> 7) & 0xffff))

#define GETARG_sBx(i) ((int)(GETARG_Bx(i)-MAXARG_sBx))

#define GETARG_Ax(i) ((int32_t)((((mrb_code)(i)) >> 7) & 0x1ffffff))

#define GETARG_UNPACK_b(i,n1,n2) ((int)((((mrb_code)(i)) >> (7+(n2))) & (((1<<(n1))-1))))

#define GETARG_UNPACK_c(i,n1,n2) ((int)((((mrb_code)(i)) >> 7) & (((1<<(n2))-1))))

#define GETARG_b(i) GETARG_UNPACK_b(i,14,2)

#define GETARG_c(i) GETARG_UNPACK_c(i,14,2)

#define MKOPCODE(op) ((op) & 0x7f)

#define MKARG_A(c) ((mrb_code)((c) & 0x1ff) << 23)

#define MKARG_B(c) ((mrb_code)((c) & 0x1ff) << 14)

#define MKARG_C(c) (((c) & 0x7f) << 7)

#define MKARG_Bx(v) ((mrb_code)((v) & 0xffff) << 7)

#define MKARG_sBx(v) MKARG_Bx((v)+MAXARG_sBx)

#define MKARG_Ax(v) ((mrb_code)((v) & 0x1ffffff) << 7)

#define MKARG_PACK(b,n1,c,n2) ((((b) & ((1<<n1)-1)) << (7+n2))|(((c) & ((1<<n2)-1)) << 7))

#define MKARG_bc(b,c) MKARG_PACK(b,14,c,2)

#define MKOP_A(op,a) (MKOPCODE(op)|MKARG_A(a))

#define MKOP_AB(op,a,b) (MKOP_A(op,a)|MKARG_B(b))

#define MKOP_ABC(op,a,b,c) (MKOP_AB(op,a,b)|MKARG_C(c))

#define MKOP_ABx(op,a,bx) (MKOP_A(op,a)|MKARG_Bx(bx))

#define MKOP_Bx(op,bx) (MKOPCODE(op)|MKARG_Bx(bx))

#define MKOP_sBx(op,sbx) (MKOPCODE(op)|MKARG_sBx(sbx))

#define MKOP_AsBx(op,a,sbx) (MKOP_A(op,a)|MKARG_sBx(sbx))

#define MKOP_Ax(op,ax) (MKOPCODE(op)|MKARG_Ax(ax))

#define MKOP_Abc(op,a,b,c) (MKOP_A(op,a)|MKARG_bc(b,c))

enum {

/*-----------------------------------------------------------------------

OP_NOP=0,/* */

OP_MOVE,/* A B R(A) := R(B) */

OP_LOADL,/* A Bx R(A) := Pool(Bx) */

OP_LOADI,/* A sBx R(A) := sBx */

OP_LOADSYM,/* A Bx R(A) := Syms(Bx) */

OP_LOADNIL,/* A R(A) := nil */

OP_LOADSELF,/* A R(A) := self */

OP_LOADT,/* A R(A) := true */

OP_LOADF,/* A R(A) := false */

OP_GETGLOBAL,/* A Bx R(A) := getglobal(Syms(Bx)) */

OP_SETGLOBAL,/* A Bx setglobal(Syms(Bx), R(A)) */

OP_GETSPECIAL,/*A Bx R(A) := Special[Bx] */

OP_SETSPECIAL,/*A Bx Special[Bx] := R(A) */

OP_GETIV,/* A Bx R(A) := ivget(Syms(Bx)) */

OP_SETIV,/* A Bx ivset(Syms(Bx),R(A)) */

OP_GETCV,/* A Bx R(A) := cvget(Syms(Bx)) */

OP_SETCV,/* A Bx cvset(Syms(Bx),R(A)) */

OP_GETCONST,/* A Bx R(A) := constget(Syms(Bx)) */

OP_SETCONST,/* A Bx constset(Syms(Bx),R(A)) */

OP_GETMCNST,/* A Bx R(A) := R(A)::Syms(Bx) */

OP_SETMCNST,/* A Bx R(A+1)::Syms(Bx) := R(A) */

OP_GETUPVAR,/* A B C R(A) := uvget(B,C) */

OP_SETUPVAR,/* A B C uvset(B,C,R(A)) */

OP_JMP,/* sBx pc+=sBx */

OP_JMPIF,/* A sBx if R(A) pc+=sBx */

OP_JMPNOT,/* A sBx if !R(A) pc+=sBx */

OP_ONERR,/* sBx rescue_push(pc+sBx) */

OP_RESCUE,/* A B C if A (if C exc=R(A) else R(A) := exc);

OP_POPERR,/* A A.times{rescue_pop()} */

OP_RAISE,/* A raise(R(A)) */

OP_EPUSH,/* Bx ensure_push(SEQ[Bx]) */

OP_EPOP,/* A A.times{ensure_pop().call} */

OP_SEND,/* A B C R(A) := call(R(A),Syms(B),R(A+1),...,R(A+C)) */

OP_SENDB,/* A B C R(A) := call(R(A),Syms(B),R(A+1),...,R(A+C),&R(A+C+1))*/

OP_FSEND,/* A B C R(A) := fcall(R(A),Syms(B),R(A+1),...,R(A+C-1)) */

OP_CALL,/* A R(A) := self.call(frame.argc, frame.argv) */

OP_SUPER,/* A C R(A) := super(R(A+1),... ,R(A+C+1)) */

OP_ARGARY,/* A Bx R(A) := argument array (16=6:1:5:4) */

OP_ENTER,/* Ax arg setup according to flags (23=5:5:1:5:5:1:1) */

OP_KARG,/* A B C R(A) := kdict[Syms(B)]; if C kdict.rm(Syms(B)) */

OP_KDICT,/* A C R(A) := kdict */

OP_RETURN,/* A B return R(A) (B=normal,in-block return/break) */

OP_TAILCALL,/* A B C return call(R(A),Syms(B),*R(C)) */

OP_BLKPUSH,/* A Bx R(A) := block (16=6:1:5:4) */

OP_ADD,/* A B C R(A) := R(A)+R(A+1) (Syms[B]=:+,C=1) */

OP_ADDI,/* A B C R(A) := R(A)+C (Syms[B]=:+) */

OP_SUB,/* A B C R(A) := R(A)-R(A+1) (Syms[B]=:-,C=1) */

OP_SUBI,/* A B C R(A) := R(A)-C (Syms[B]=:-) */

OP_MUL,/* A B C R(A) := R(A)*R(A+1) (Syms[B]=:*,C=1) */

OP_DIV,/* A B C R(A) := R(A)/R(A+1) (Syms[B]=:/,C=1) */

OP_EQ,/* A B C R(A) := R(A)==R(A+1) (Syms[B]=:==,C=1) */

OP_LT,/* A B C R(A) := R(A)<R(A+1) (Syms[B]=:<,C=1) */

OP_LE,/* A B C R(A) := R(A)<=R(A+1) (Syms[B]=:<=,C=1) */

OP_GT,/* A B C R(A) := R(A)>R(A+1) (Syms[B]=:>,C=1) */

OP_GE,/* A B C R(A) := R(A)>=R(A+1) (Syms[B]=:>=,C=1) */

OP_ARRAY,/* A B C R(A) := ary_new(R(B),R(B+1)..R(B+C)) */

OP_ARYCAT,/* A B ary_cat(R(A),R(B)) */

OP_ARYPUSH,/* A B ary_push(R(A),R(B)) */

OP_AREF,/* A B C R(A) := R(B)[C] */

OP_ASET,/* A B C R(B)[C] := R(A) */

OP_APOST,/* A B C *R(A),R(A+1)..R(A+C) := R(A) */

OP_STRING,/* A Bx R(A) := str_dup(Lit(Bx)) */

OP_STRCAT,/* A B str_cat(R(A),R(B)) */

OP_HASH,/* A B C R(A) := hash_new(R(B),R(B+1)..R(B+C)) */

OP_LAMBDA,/* A Bz Cz R(A) := lambda(SEQ[Bz],Cz) */

OP_RANGE,/* A B C R(A) := range_new(R(B),R(B+1),C) */

OP_OCLASS,/* A R(A) := ::Object */

OP_CLASS,/* A B R(A) := newclass(R(A),Syms(B),R(A+1)) */

OP_MODULE,/* A B R(A) := newmodule(R(A),Syms(B)) */

OP_EXEC,/* A Bx R(A) := blockexec(R(A),SEQ[Bx]) */

OP_METHOD,/* A B R(A).newmethod(Syms(B),R(A+1)) */

OP_SCLASS,/* A B R(A) := R(B).singleton_class */

OP_TCLASS,/* A R(A) := target_class */

OP_DEBUG,/* A B C print R(A),R(B),R(C) */

OP_STOP,/* stop VM */

OP_ERR,/* Bx raise RuntimeError with message Lit(Bx) */

OP_RSVD1,/* reserved instruction #1 */

OP_RSVD2,/* reserved instruction #2 */

OP_RSVD3,/* reserved instruction #3 */

OP_RSVD4,/* reserved instruction #4 */

OP_RSVD5,/* reserved instruction #5 */

};

#define OP_L_STRICT 1

#define OP_L_CAPTURE 2

#define OP_L_METHOD OP_L_STRICT

#define OP_L_LAMBDA (OP_L_STRICT|OP_L_CAPTURE)

#define OP_L_BLOCK OP_L_CAPTURE

#define OP_R_NORMAL 0

#define OP_R_BREAK 1

#define OP_R_RETURN 2

#endif /* MRUBY_OPCODE_H */