USRP1 FPGA configuration with 16, 8, 4, 2, and 1-bit quantization options

I am looking for 8 bit IQ quantization using USRP1. Someone already did
some related work. Is anyone know where I can find the following svn
developer branch?

Thanks in advance

For whoever is interested, I have a branched revision of the USRP1 FPGA
code ready that supports 16, 8, 4, 2, and 1-bit quantization. The
Verilog code is available for review in my developer’s branch of the GNU
Radio SVN repository here:


I would like speed up usrp E100 using ARM Neon Instructions. I am new to
use ARM Neon. I am looking for neon code examples.