On Wed, Sep 28, 2011 at 03:32:41PM +0200, Ralf Baechle wrote: Ah, also we unfortunately still support assemblers older than binutils 2.18 but and support for the software names of the registers was introduced in 2.18, so <asm/mipsregs.h> should be used to get the definitions for the register names. Another advantage of doing this is that we get rid of the ugly $ prefix of register names. Cheers, Ralf