jvmbytecodesdebug.jrag

JDK1.4编译器后端

        case FASTORE: res = "fastore";break;
        case DASTORE: res = "dastore";break;
        case AASTORE: res = "aastore";break;
        case BASTORE: res = "bastore";break;
        case CASTORE: res = "castore";break;
        case SASTORE: res = "sastore";break;
        case POP: res = "pop";break;
        case POP2: res = "pop2";break;
        case DUP: res = "dup";break;
        case DUP_X1: res = "dup_x1";break;
        case DUP_X2: res = "dup_x2";break;
        case DUP2: res = "dup2";break;
        case DUP2_X1: res = "dup2_x1";break;
        case DUP2_X2: res = "dup2_x2" ;break;
        case SWAP: res = "swap";break;
        case IADD: res = "iadd";break;
        case LADD: res = "ladd";break;
        case FADD: res = "fadd";break;
        case DADD: res = "dadd";break;
        case ISUB: res = "isub";break;
        case LSUB: res = "lsub";break;
        case FSUB: res = "fsub";break;
        case DSUB: res = "dsub";break;
        case IMUL: res = "imul";break;
        case LMUL: res = "lmul";break;
        case FMUL: res = "fmul";break;
        case DMUL: res = "dmul";break;
        case IDIV: res = "idiv";break;
        case LDIV: res = "ldiv";break;
        case FDIV: res = "fdiv";break;
        case DDIV: res = "ddiv";break;
        case IREM: res = "irem";break;
        case LREM: res = "lrem";break;
        case FREM: res = "frem";break;
        case DREM: res = "drem";break;
        case INEG: res = "ineg";break;
        case LNEG: res = "lneg";break;
        case FNEG: res = "fneg";break;
        case DNEG: res = "dneg";break;
        case ISHL: res = "ishl";break;
        case LSHL: res = "lshl";break;
        case ISHR: res = "ishr";break;
        case LSHR: res = "lshr";break;
        case IUSHR: res = "iushr";break;
        case LUSHR: res = "lushr";break;
        case IAND: res = "iand";break;
        case LAND: res = "land";break;
        case IOR: res = "ior";break;
        case LOR: res = "lor";break;
        case IXOR: res = "ixor";break;
        case LXOR: res = "lxor";break;
        case IINC: res = "iinc";break;
        case I2L: res = "i2l";break;
        case I2F: res = "i2f";break;
        case I2D: res = "i2d";break;
        case L2I: res = "l2i";break;
        case L2F: res = "l2f";break;
        case L2D: res = "l2d";break;
        case F2I: res = "f2i";break;
        case F2L: res = "f2l";break;
        case F2D: res = "f2d";break;
        case D2I: res = "d2i";break;
        case D2L: res = "d2l";break;
        case D2F: res = "d2f";break;
        case I2B: res = "i2b";break;
        case I2C: res = "i2c";break;
        case I2S: res = "i2s";break;
        case LCMP: res = "lcmp";break;
        case FCMPL: res = "fcmpl";break;
        case FCMPG: res = "fcmpg";break;
        case DCMPL: res = "dcmpl";break;
        case DCMPG: res = "dcmpg";break;
        case IFEQ: res = "ifeq";break;
        case IFNE: res = "ifne";break;
        case IFLT: res = "iflt";break;
        case IFGE: res = "ifge";break;
        case IFGT: res = "ifgt";break;
        case IFLE: res = "ifle";break;
        case IF_ICMPEQ: res = "if_icmpeq";break;
        case IF_ICMPNE: res = "if_icmpne";break;
        case IF_ICMPLT: res = "if_icmplt";break;
        case IF_ICMPGE: res = "if_icmpge";break;
        case IF_ICMPGT: res = "if_icmpgt";break;
        case IF_ICMPLE: res = "if_icmple";break;
        case IF_ACMPEQ: res = "if_acmpeq";break;
        case IF_ACMPNE: res = "if_acmpne";break;
        case GOTO: res = "goto";break;
        case JSR: res = "jsr";break;
        case RET: res = "ret";break;
        case TABLESWITCH: res = "tableswitch";break;
        case LOOKUPSWITCH: res = "lookupswitch";break;
        case IRETURN: res = "ireturn";break;
        case LRETURN: res = "lreturn";break;
        case FRETURN: res = "freturn" ;break;
        case DRETURN: res = "dreturn";break;
        case ARETURN: res = "areturn";break;
        case RETURN: res = "return";break;
        case GETSTATIC: res = "getstatic" ;break;
        case PUTSTATIC: res = "putstatic";break;
        case GETFIELD: res = "getfield";break;
        case PUTFIELD: res = "putfield";break;
        case INVOKEVIRTUAL: res = "invokevirtual";break;
        case INVOKESPECIAL: res = "invokespecial";break;
        case INVOKESTATIC: res = "invokestatic";break;
        case INVOKEINTERFACE: res = "invokeinterface";break;
        case NEW: res = "new";break;
        case NEWARRAY: res = "newarray";break;
        case ANEWARRAY: res = "anewarray";break;
        case ARRAYLENGTH: res = "arraylength";break;
        case ATHROW: res = "athrow";break;
        case CHECKCAST: res = "checkcast";break;
        case INSTANCEOF: res = "instanceof";break;
        case MONITORENTER: res = "monitorenter";break;
        case MONITOREXIT: res = "monitorexit";break;
        case WIDE: res = "wide";break;
        case MULTIANEWARRAY: res = "multianewarray";break;
        case IFNULL: res = "ifnull";break;
        case IFNONNULL: res = "ifnonnull";break;
        case GOTO_W: res = "goto_w";break;
        case JSR_W: res = "jsr_w";break;
        case BREAKPOINT: res = "breakpoint";break;
        case IMPDEP1: res = "impdep1";break;
        case IMPDEP2: res = "impdep2";break;
        default: res = "<UNKNOWN BYTECODE:"+code+">";
      }
      return res;
    }

    private static String getByteOperand(byte[] codes, int index) {
      return Integer.toString((int)codes[index]);
    }
    
    private static String getCharOperand(byte[] codes, int index) {
      int hi = ((codes[index + 0]       ) << 8);
      int lo = ((codes[index + 1] & 0xff) << 0);
      return Integer.toString(hi + lo);
    }
    
    private static String getIntOperand(byte[] codes, int index) {
      int hh = ((codes[index + 0]       ) << 24);
      int hl = ((codes[index + 1] & 0xff) << 16);
      int lh = ((codes[index + 2] & 0xff) << 8);
      int ll = ((codes[index + 3] & 0xff) << 0);
      return Integer.toString(hh + hl + lh + ll);
    }
    
    public static String getOperands(byte[] codes, int index) {
      String res = "";
      switch(codes[index]) 
      {
        case NOP: break;
        case ACONST_NULL:break;
        case ICONST_M1:break;
        case ICONST_0: break;
        case ICONST_1: break;
        case ICONST_2: break;
        case ICONST_3: break;
        case ICONST_4: break;
        case ICONST_5: break;
        case LCONST_0: break;
        case LCONST_1: break;
        case FCONST_0: break;
        case FCONST_1: break;
        case FCONST_2: break;
        case DCONST_0: break;
        case DCONST_1: break;
        case BIPUSH: res = getByteOperand(codes, index+1);break;
        case SIPUSH: res = getCharOperand(codes, index+1);break;
        case LDC: res = getByteOperand(codes, index+1);break;
        case LDC_W: res = getCharOperand(codes, index+1);break;
        case LDC2_W: res = getCharOperand(codes, index+1);break;
        case ILOAD: res = getByteOperand(codes, index+1);break;
        case LLOAD: res = getByteOperand(codes, index+1);break;
        case FLOAD: res = getByteOperand(codes, index+1);break;
        case DLOAD: res = getByteOperand(codes, index+1);break;
        case ALOAD: res = getByteOperand(codes, index+1);break;
        case ILOAD_0: break;
        case ILOAD_1: break;
        case ILOAD_2: break;
        case ILOAD_3: break;
        case LLOAD_0: break;
        case LLOAD_1: break;
        case LLOAD_2: break;
        case LLOAD_3: break;
        case FLOAD_0: break;
        case FLOAD_1: break;
        case FLOAD_2: break;
        case FLOAD_3: break;
        case DLOAD_0: break;
        case DLOAD_1: break;
        case DLOAD_2: break;
        case DLOAD_3: break;
        case ALOAD_0: break;
        case ALOAD_1: break;
        case ALOAD_2: break;
        case ALOAD_3: break;
        case IALOAD: break;
        case LALOAD: break;
        case FALOAD: break;
        case DALOAD: break;
        case AALOAD: break;
        case BALOAD: break;
        case CALOAD: break;
        case SALOAD: break;
        case ISTORE: res = getByteOperand(codes, index+1);break;
        case LSTORE: res = getByteOperand(codes, index+1);break;
        case FSTORE: res = getByteOperand(codes, index+1);break;
        case DSTORE: res = getByteOperand(codes, index+1);break;
        case ASTORE: res = getByteOperand(codes, index+1);break;
        case ISTORE_0: break;
        case ISTORE_1: break;
        case ISTORE_2: break;
        case ISTORE_3: break;
        case LSTORE_0: break;
        case LSTORE_1: break;
        case LSTORE_2: break;
        case LSTORE_3: break;
        case FSTORE_0: break;
        case FSTORE_1: break;
        case FSTORE_2: break;
        case FSTORE_3: break;
        case DSTORE_0: break;
        case DSTORE_1: break;
        case DSTORE_2: break;
        case DSTORE_3: break;
        case ASTORE_0: break;
        case ASTORE_1: break;
        case ASTORE_2: break;
        case ASTORE_3: break;
        case IASTORE: break;
        case LASTORE: break;
        case FASTORE: break;
        case DASTORE: break;
        case AASTORE: break;
        case BASTORE: break;
        case CASTORE: break;
        case SASTORE: break;
        case POP: break;
        case POP2: break;
        case DUP: break;
        case DUP_X1: break;
        case DUP_X2: break;
        case DUP2: break;
        case DUP2_X1: break;
        case DUP2_X2:break;
        case SWAP: break;
        case IADD: break;
        case LADD: break;
        case FADD: break;
        case DADD: break;
        case ISUB: break;
        case LSUB: break;
        case FSUB: break;
        case DSUB: break;
        case IMUL: break;
        case LMUL: break;
        case FMUL: break;
        case DMUL: break;
        case IDIV: break;
        case LDIV: break;
        case FDIV: break;
        case DDIV: break;
        case IREM: break;
        case LREM: break;
        case FREM: break;
        case DREM: break;
        case INEG: break;
        case LNEG: break;
        case FNEG: break;
        case DNEG: break;
        case ISHL: break;
        case LSHL: break;
        case ISHR: break;
        case LSHR: break;
        case IUSHR: break;
        case LUSHR: break;
        case IAND: break;
        case LAND: break;
        case IOR: break;
        case LOR: break;
        case IXOR: break;
        case LXOR: break;
        case IINC: res = getByteOperand(codes, index+1) + " " + getByteOperand(codes, index+2); break;
        case I2L: break;
        case I2F: break;
        case I2D: break;
        case L2I: break;
        case L2F: break;
        case L2D: break;
        case F2I: break;
        case F2L: break;
        case F2D: break;
        case D2I: break;
        case D2L: break;
        case D2F: break;
        case I2B: break;
        case I2C: break;
        case I2S: break;
        case LCMP: break;
        case FCMPL: break;
        case FCMPG: break;
        case DCMPL: break;
        case DCMPG: break;
        case IFEQ: res = getCharOperand(codes, index+1);break;
        case IFNE: res = getCharOperand(codes, index+1);break;
        case IFLT: res = getCharOperand(codes, index+1);break;
        case IFGE: res = getCharOperand(codes, index+1);break;
        case IFGT: res = getCharOperand(codes, index+1);break;
        case IFLE: res = getCharOperand(codes, index+1);break;
        case IF_ICMPEQ: res = getCharOperand(codes, index+1);break;
        case IF_ICMPNE: res = getCharOperand(codes, index+1);break;
        case IF_ICMPLT: res = getCharOperand(codes, index+1);break;
        case IF_ICMPGE: res = getCharOperand(codes, index+1);break;
        case IF_ICMPGT: res = getCharOperand(codes, index+1);break;
        case IF_ICMPLE: res = getCharOperand(codes, index+1);break;
        case IF_ACMPEQ: res = getCharOperand(codes, index+1);break;
        case IF_ACMPNE: res = getCharOperand(codes, index+1);break;
        case GOTO: res = getCharOperand(codes, index+1);break;
        case JSR: res = getCharOperand(codes, index+1);break;
        case RET: res = getByteOperand(codes, index+1);break;
        case TABLESWITCH:
                  {
                    int db = ((index + 4) / 4) * 4; // Align-4, step to defaultbytes
                    int val = fourByteToInt(codes, db);
                    db+=4;
                    res = "defaultbytes:" + val;
                    int low = fourByteToInt(codes, db);
                    db+=4;
                    res += ", low:" + low;
                    int high = fourByteToInt(codes, db);
                    db+=4;
                    res += ", high:" + high;
                    for(int i = 0; i < (high-low+1); i++)
                      res += "\n\t" + "offset:" + fourByteToInt(codes, db + i * 4);