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/* |
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* Copyright (C) 2012 David Anderson |
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* |
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* This file is part of JITCraft. |
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* |
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* JITCraft is free software: you can redistribute it and/or modify it under |
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* the terms of the GNU General Public License as published by the Free |
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* Software Foundation, either version 3 of the License, or (at your option) |
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* any later version. |
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* |
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* Foobar is distributed in the hope that it will be useful, but WITHOUT ANY |
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License along with |
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* JITCraft. If not, see http://www.gnu.org/licenses/. |
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*/ |
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#ifndef _include_opcodes_h_ |
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#define _include_opcodes_h_ |
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#include <assert.h> |
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#include <stdio.h> |
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namespace jc { |
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enum Opcode |
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{ |
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#define OPDEF(name, number, text, length, uses, defs) \ |
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name = number, |
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#include "Opcodes.tbl" |
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#undef OPDEF |
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OPCODES_TOTAL |
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}; |
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#define OPDEF(name, number, text, length, uses, defs) \ |
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static const unsigned name##_LENGTH = length; |
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#include "Opcodes.tbl" |
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#undef OPDEF |
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struct OpInfo |
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{ |
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const char *name; |
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int length; |
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int nuses; |
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int ndefs; |
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}; |
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typedef unsigned char bytecode; |
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extern OpInfo OpcodeInfo[]; |
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static inline Opcode |
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Invert(Opcode op) |
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{ |
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switch (op) { |
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case OP_JEQ: |
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return OP_JNE; |
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case OP_JNE: |
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return OP_JEQ; |
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case OP_JG: |
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return OP_JLE; |
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case OP_JGE: |
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return OP_JL; |
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case OP_JL: |
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return OP_JGE; |
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default: |
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assert(op == OP_JLE); |
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return OP_JG; |
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} |
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} |
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static inline int |
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READ_INT32(bytecode *pc) |
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{ |
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return *reinterpret_cast<int *>(pc + 1); |
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} |
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static inline unsigned |
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READ_UINT32(bytecode *pc) |
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{ |
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return *reinterpret_cast<unsigned *>(pc + 1); |
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} |
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static inline float |
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READ_FLOAT(bytecode *pc) |
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{ |
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return *reinterpret_cast<float *>(pc + 1); |
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} |
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class Code; |
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void Disassemble(Code *code, FILE *fp); |
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} |
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#endif // _include_opcodes_h_ |
