[Simulavr-devel] decoder speed up

[Theodore A. Roth]

Hi,

I've just checked in some changes which speed up the decoder. I'm seeing 
about 30% speed up with this change using CFLAGS='-g -Wall'.

Using the lookup table increases the program's size by 256 KB which I
think is acceptable.

Please take a look at it.

I'm not really too worried about speed issues right now, but I wanted to 
try this one while the idea was fresh in my head so I wouldn't forget it. 
The actual changes were minimal, so I went ahead and checked it in.

Ted