copyarray1.bc

来自「PracticalJAVACode 的源码」· BC 代码 · 共 28 行

Method void copyArray1(int[], int[])
   0 aload_1          //Push the object reference at index 1 of
                      //the local variable table(src).
   1 arraylength      //Pop src and push its length.
   2 istore_3         //Pop the length and store it at index 3 of
                      //the local variable table(size).
   3 iconst_0         //Push 0.
   4 istore 4         //Pop 0 and store it at index 4 of the local
                      //variable table(i).
   6 goto 20          //Jump to location 20.
   9 aload_2          //Push the object reference at index 2 of
                      //the local variable table(dest).
  10 iload 4          //Push the value at index 4(i).
  12 aload_1          //Push the object reference at index 1 of
                      //the local variable table(src).
  13 iload 4          //Push the value at index 4(i).
  15 iaload           //Pop i and src. Push the ith element of the
                      //src array.
  16 iastore          //Pop the top three values (ith element of
                      //src, i, and dest). Store the ith element
                      //or src at index i of dest.
  17 iinc 4 1         //Increment i stored at index 4.
  20 iload 4          //Push the value at index 4(i).
  22 iload_3          //Push the value at index 3(size).
  23 if_icmplt 9      //Pop i and size. Jump to location 9 if i is
                      //less than size.
  26 return           //Return to calling method.