Program: FPU Tracer 
Version: v0.0.1
Author:  j00ru//vx
Date:    2008-01-24
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http://www.openrce.org/blog/browse/j00ru
http://vexillium.org/

Float Tracer is a free (but not yet open source) program, working as debugger 
for the executable file you choose. It goes through the process execution step-by-step,
using the TF flag, and logs the occurences of FPU extension instructions (the instruction counter,
address and instruction dissassembly are logged, as well as the STx values).
It's got a few IMO useful options ("trace.exe -h" to list them), other are going to be implemented in further versions.

The program uses ndisasm.exe, a part of NASM, to disassembly the FPU instructions.
It is a LGPL licensed project, you can download it's sources from http://nasm.sourceforge.net/.