1 | /**
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2 | ** @file mruby/opcode.h - RiteVM operation codes
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3 | **
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4 | ** See Copyright Notice in mruby.h
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5 | */
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6 |
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7 | #ifndef MRUBY_OPCODE_H
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8 | #define MRUBY_OPCODE_H
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9 |
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10 | enum mrb_insn {
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11 | #define OPCODE(x,_) OP_ ## x,
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12 | #include "mruby/ops.h"
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13 | #undef OPCODE
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14 | };
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15 |
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16 | #define OP_L_STRICT 1
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17 | #define OP_L_CAPTURE 2
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18 | #define OP_L_METHOD OP_L_STRICT
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19 | #define OP_L_LAMBDA (OP_L_STRICT|OP_L_CAPTURE)
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20 | #define OP_L_BLOCK OP_L_CAPTURE
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21 |
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22 | #define OP_R_NORMAL 0
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23 | #define OP_R_BREAK 1
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24 | #define OP_R_RETURN 2
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25 |
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26 | #define PEEK_B(pc) (*(pc))
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27 | #define PEEK_S(pc) ((pc)[0]<<8|(pc)[1])
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28 | #define PEEK_W(pc) ((pc)[0]<<16|(pc)[1]<<8|(pc)[2])
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29 |
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30 | #define READ_B() PEEK_B(pc++)
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31 | #define READ_S() (pc+=2, PEEK_S(pc-2))
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32 | #define READ_W() (pc+=3, PEEK_W(pc-3))
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33 |
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34 | #define FETCH_Z() /* nothing */
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35 | #define FETCH_B() do {a=READ_B();} while (0)
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36 | #define FETCH_BB() do {a=READ_B(); b=READ_B();} while (0)
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37 | #define FETCH_BBB() do {a=READ_B(); b=READ_B(); c=READ_B();} while (0)
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38 | #define FETCH_BS() do {a=READ_B(); b=READ_S();} while (0)
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39 | #define FETCH_S() do {a=READ_S();} while (0)
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40 | #define FETCH_W() do {a=READ_W();} while (0)
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41 |
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42 | /* with OP_EXT1 (1st 16bit) */
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43 | #define FETCH_Z_1() FETCH_Z()
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44 | #define FETCH_B_1() FETCH_S()
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45 | #define FETCH_BB_1() do {a=READ_S(); b=READ_B();} while (0)
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46 | #define FETCH_BBB_1() do {a=READ_S(); b=READ_B(); c=READ_B();} while (0)
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47 | #define FETCH_BS_1() do {a=READ_S(); b=READ_S();} while (0)
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48 | #define FETCH_S_1() FETCH_S()
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49 | #define FETCH_W_1() FETCH_W()
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50 |
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51 | /* with OP_EXT2 (2nd 16bit) */
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52 | #define FETCH_Z_2() FETCH_Z()
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53 | #define FETCH_B_2() FETCH_B()
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54 | #define FETCH_BB_2() do {a=READ_B(); b=READ_S();} while (0)
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55 | #define FETCH_BBB_2() do {a=READ_B(); b=READ_S(); c=READ_B();} while (0)
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56 | #define FETCH_BS_2() FETCH_BS()
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57 | #define FETCH_S_2() FETCH_S()
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58 | #define FETCH_W_2() FETCH_W()
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59 |
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60 | /* with OP_EXT3 (1st & 2nd 16bit) */
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61 | #define FETCH_Z_3() FETCH_Z()
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62 | #define FETCH_B_3() FETCH_B()
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63 | #define FETCH_BB_3() do {a=READ_S(); b=READ_S();} while (0)
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64 | #define FETCH_BBB_3() do {a=READ_S(); b=READ_S(); c=READ_B();} while (0)
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65 | #define FETCH_BS_3() do {a=READ_S(); b=READ_S();} while (0)
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66 | #define FETCH_S_3() FETCH_S()
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67 | #define FETCH_W_3() FETCH_W()
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68 |
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69 | #endif /* MRUBY_OPCODE_H */
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