ble, which makes them quite efficient. 
<P>
There are two alternative ways to interpret the opcodes. The first is to
make a table of functions and call an appropriate one. This method appears
to be less efficient than a <CODE>switch()</CODE>, as you get the overhead
from function calls. The second method would be to make a table of labels,
and use the <CODE>goto</CODE> statement. While this method is slightly
faster than a <CODE>switch()</CODE>, it will only work on compilers
supporting "precomputed labels"