/**

** @file mruby/opcode.h - RiteVM operation codes

**

** See Copyright Notice in mruby.h

*/

#ifndef MRUBY_OPCODE_H

#define MRUBY_OPCODE_H

enum mrb_insn {

#define OPCODE(x,_) OP_ ## x,

#include "mruby/ops.h"

#undef OPCODE

};

#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

#define PEEK_B(pc) (*(pc))

#define PEEK_S(pc) ((pc)[0]<<8|(pc)[1])

#define PEEK_W(pc) ((pc)[0]<<16|(pc)[1]<<8|(pc)[2])

#define READ_B() PEEK_B(pc++)

#define READ_S() (pc+=2, PEEK_S(pc-2))

#define READ_W() (pc+=3, PEEK_W(pc-3))

#define FETCH_Z() /* nothing */

#define FETCH_B() do {a=READ_B();} while (0)

#define FETCH_BB() do {a=READ_B(); b=READ_B();} while (0)

#define FETCH_BBB() do {a=READ_B(); b=READ_B(); c=READ_B();} while (0)

#define FETCH_BS() do {a=READ_B(); b=READ_S();} while (0)

#define FETCH_BSS() do {a=READ_B(); b=READ_S(); c=READ_S();} while (0)

#define FETCH_S() do {a=READ_S();} while (0)

#define FETCH_W() do {a=READ_W();} while (0)

#endif /* MRUBY_OPCODE_H */