mirror of
https://github.com/mruby/mruby
synced 2026-06-08 16:11:16 +00:00
David Siaw
70 lines
2.0 KiB
C
70 lines
2.0 KiB
C
/**
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** @file mruby/opcode.h - RiteVM operation codes
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**
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** See Copyright Notice in mruby.h
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*/
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#ifndef MRUBY_OPCODE_H
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#define MRUBY_OPCODE_H
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enum mrb_insn {
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#define OPCODE(x,_) OP_ ## x,
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#include "mruby/ops.h"
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#undef OPCODE
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};
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#define OP_L_STRICT 1
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#define OP_L_CAPTURE 2
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#define OP_L_METHOD OP_L_STRICT
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#define OP_L_LAMBDA (OP_L_STRICT|OP_L_CAPTURE)
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#define OP_L_BLOCK OP_L_CAPTURE
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#define OP_R_NORMAL 0
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#define OP_R_BREAK 1
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#define OP_R_RETURN 2
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#define PEEK_B(pc) (*(pc))
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#define PEEK_S(pc) ((pc)[0]<<8|(pc)[1])
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#define PEEK_W(pc) ((pc)[0]<<16|(pc)[1]<<8|(pc)[2])
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#define READ_B() PEEK_B(pc++)
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#define READ_S() (pc+=2, PEEK_S(pc-2))
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#define READ_W() (pc+=3, PEEK_W(pc-3))
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#define FETCH_Z() /* nothing */
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#define FETCH_B() do {a=READ_B();} while (0)
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#define FETCH_BB() do {a=READ_B(); b=READ_B();} while (0)
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#define FETCH_BBB() do {a=READ_B(); b=READ_B(); c=READ_B();} while (0)
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#define FETCH_BS() do {a=READ_B(); b=READ_S();} while (0)
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#define FETCH_S() do {a=READ_S();} while (0)
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#define FETCH_W() do {a=READ_W();} while (0)
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/* with OP_EXT1 (1st 16bit) */
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#define FETCH_Z_1() FETCH_Z()
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#define FETCH_B_1() FETCH_S()
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#define FETCH_BB_1() do {a=READ_S(); b=READ_B();} while (0)
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#define FETCH_BBB_1() do {a=READ_S(); b=READ_B(); c=READ_B();} while (0)
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#define FETCH_BS_1() do {a=READ_S(); b=READ_S();} while (0)
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#define FETCH_S_1() FETCH_S()
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#define FETCH_W_1() FETCH_W()
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/* with OP_EXT2 (2nd 16bit) */
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#define FETCH_Z_2() FETCH_Z()
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#define FETCH_B_2() FETCH_B()
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#define FETCH_BB_2() do {a=READ_B(); b=READ_S();} while (0)
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#define FETCH_BBB_2() do {a=READ_B(); b=READ_S(); c=READ_B();} while (0)
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#define FETCH_BS_2() FETCH_BS()
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#define FETCH_S_2() FETCH_S()
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#define FETCH_W_2() FETCH_W()
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/* with OP_EXT3 (1st & 2nd 16bit) */
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#define FETCH_Z_3() FETCH_Z()
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#define FETCH_B_3() FETCH_B()
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#define FETCH_BB_3() do {a=READ_S(); b=READ_S();} while (0)
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#define FETCH_BBB_3() do {a=READ_S(); b=READ_S(); c=READ_B();} while (0)
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#define FETCH_BS_3() do {a=READ_S(); b=READ_S();} while (0)
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#define FETCH_S_3() FETCH_S()
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#define FETCH_W_3() FETCH_W()
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#endif /* MRUBY_OPCODE_H */
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