22 \item Remember symbolic labels in the Jasmin-assembler are meant to

    23       be used for jumps (like in loops or if-conditions). Assume

    24       you generated a Jasmin-file with some redundant

    25       labels, that is some labels are not used in your code for any jumps. For

    26       example \texttt{L\_begin} and \texttt{L\_end} are not used

    27       in the fol,lowing code-snippet:

    28 

    29 \begin{lstlisting}[language=JVMIS,numbers=none]

    30 L_begin:        

    31 ldc 1

    32 ldc 2

    33 ldc 3

    34 imul

    35 ldc 4

    36 ldc 3

    37 isub

    38 iadd

    39 iadd

    40 L_end:

    41 \end{lstlisting}

    42       

    43       Do these redundant labels affect the size of the generated

    44       JVM-code? (Hint: What are the labels translated to by

    45       the Jasmin-assembler?).

    46 

    47       \solution{The answer is no. The reason is that assemblers

    48         calculate for labels either relative or explicit adresses,

    49         which are then used in the JVM-byte-code. Relative addresses

    50         are like ``jump 10 bytes forward'' or ``12 bytes backward''. So

    51       additional labels do not increase the size of the generated code.}

    52 

    53