Question : Is there any code of SATA interface in VHDL?

I'm looking to add a SATA interface with my firmware to a stratix II. Is there any code of SATA interface in VHDL?

Answer : Is there any code of SATA interface in VHDL?

Something found by googling around:

http://www.hitechglobal.com/ipcores/sata.htm
http://www.nuvation.com/ip/download/Nuv_SATA_Altera_IPCore.pdf
http://www.siliconimage.com/iplicensing/product.aspx?pid=56

But I think they are not cheap.