instance.bc

来自「Practical Java也是一本和J2ME手机游戏开发相关的书」· BC 代码 · 共 22 行

Method void instanceAccess(int)
   0 iconst_0         //Push 0 onto the stack.
   1 istore_2         //Pop 0 and store it at index 2 of the local
                      //variable table(i).
   2 goto 18          //Jump to location 18.
   5 aload_0          //Push index 0(this).
   6 dup              //Duplicate the top stack value and push it.
   7 getfield #19 <Field int instVar>
                      //Pop the object reference for this and push
                      //the value for instVar.
  10 iconst_1         //Push 1.
  11 iadd             //Pop the top two values, push their sum.
  12 putfield #19 <Field int instVar>
                      //Pop the top two values and store the sum
                      //in instVar.
  15 iinc 2 1         //Increment i stored at index 2 by 1.
  18 iload_2          //Push the value at index 2(i).
  19 iload_1          //Push the value at index 1(val).
  20 if_icmplt 5      //Pop i and val. Jump to location 5 if i is
                      //less than val.
  23 return           //Return to calling method.