[commit/rx sim] Fix a "Cycle count not updated!" abort

[Kevin Buettner]

On Fri, 24 Sep 2010 10:39:24 +0900
Masaki Muranaka <monaka@monami-software.com> wrote:

> > 	* rx.c (decode_opcode): Declare `rx' as unsigned.
> 
> it should be `tx'?

You're correct.  Thanks for catching this.

I've fixed and committed the relevant ChangeLog entry.

Kevin