gistfile1.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_FSEND,/* A B C R(A) := fcall(R(A),mSym(B),R(A+1),...,R(A+C-1)) */
OP_VSEND,/* A B R(A) := vcall(R(A),mSym(B)) */
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 */
};