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/*
** opcode.h - RiteVM operation codes
**
** See Copyright Notice in mruby.h
*/
#ifndef OPCODE_H
#define OPCODE_H
#define MAXARG_Bx ((1<<16)-1)
#define MAXARG_sBx (MAXARG_Bx>>1) /* `sBx' is signed */
/* instructions OP:A:B:C = 7:9:9:7 (32 bits) */
/* OP:A:Bx = 7:9:16 */
/* OP:Ax = 7:25 */
#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) ((int)((((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) (((c) & 0x1ff) << 23)
#define MKARG_B(c) (((c) & 0x1ff) << 14)
#define MKARG_C(c) (((c) & 0x7f) << 7)
#define MKARG_Bx(v) (((v) & 0xffff) << 7)
#define MKARG_sBx(v) MKARG_Bx((v)+MAXARG_sBx)
#define MKARG_Ax(v) (((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) := Lit(Bx) */
OP_LOADI,/* A sBx R(A) := sBx */
OP_LOADSYM,/* A Bx R(A) := Sym(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(Sym(Bx)) */
OP_SETGLOBAL,/* A Bx setglobal(Sym(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(Sym(Bx)) */
OP_SETIV,/* A Bx ivset(Sym(Bx),R(A)) */
OP_GETCV,/* A Bx R(A) := cvget(Sym(Bx)) */
OP_SETCV,/* A Bx cvset(Sym(Bx),R(A)) */
OP_GETCONST,/* A Bx R(A) := constget(Sym(Bx)) */
OP_SETCONST,/* A Bx constset(Sym(Bx),R(A)) */
OP_GETMCNST,/* A Bx R(A) := R(A)::Sym(B) */
OP_SETMCNST,/* A Bx R(A+1)::Sym(B) := 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 clear(exc); R(A) := exception (ignore when A=0) */
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),mSym(B),R(A+1),...,R(A+C)) */
OP_SENDB,/* A B C R(A) := call(R(A),mSym(B),R(A+1),...,R(A+C),&R(A+C+1))*/
OP_FSEND,/* A B C R(A) := fcall(R(A),mSym(B),R(A+1),...,R(A+C-1)) */
OP_CALL,/* A B C R(A) := self.call(R(A),.., R(A+C)) */
OP_SUPER,/* A B 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 (24=5:5:1:5:5:1:1) */
OP_KARG,/* A B C R(A) := kdict[mSym(B)]; if C kdict.rm(mSym(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),mSym(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) (mSyms[B]=:+,C=1) */
OP_ADDI,/* A B C R(A) := R(A)+C (mSyms[B]=:+) */
OP_SUB,/* A B C R(A) := R(A)-R(A+1) (mSyms[B]=:-,C=1) */
OP_SUBI,/* A B C R(A) := R(A)-C (mSyms[B]=:-) */
OP_MUL,/* A B C R(A) := R(A)*R(A+1) (mSyms[B]=:*,C=1) */
OP_DIV,/* A B C R(A) := R(A)/R(A+1) (mSyms[B]=:/,C=1) */
OP_EQ,/* A B C R(A) := R(A)==R(A+1) (mSyms[B]=:==,C=1) */
OP_LT,/* A B C R(A) := R(A)<R(A+1) (mSyms[B]=:<,C=1) */
OP_LE,/* A B C R(A) := R(A)<=R(A+1) (mSyms[B]=:<=,C=1) */
OP_GT,/* A B C R(A) := R(A)>R(A+1) (mSyms[B]=:>,C=1) */
OP_GE,/* A B C R(A) := R(A)>=R(A+1) (mSyms[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],Cm) */
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),mSym(B),R(A+1)) */
OP_MODULE,/* A B R(A) := newmodule(R(A),mSym(B)) */
OP_EXEC,/* A Bx R(A) := blockexec(R(A),SEQ[Bx]) */
OP_METHOD,/* A B R(A).newmethod(mSym(B),R(A+1)) */
OP_SCLASS,/* A B R(A) := R(B).singleton_class */
OP_TCLASS,/* A R(A) := target_class */
OP_DEBUG,/* A print R(A) */
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 /* OPCODE_H */
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