On 09/28/2011 06:09 PM, RdrouterUboot Router wrote: > 2.Is it right?I can delete this code "mfc0 $10,$12" from uboot.
You can delete that MFC0 instruction in this case and save one word. Presumably the original code used to update the Status register value in read-modify-write manner, and at some point someone modified into current shape. By the way, since the first MIPS implementation of U-Boot was merged into the tree (by wdenk), we've been using k0($26) or t0($8) register as a scratch pad when modifying the Status register, while your example code uses t2($10). So it would be a custom U-Boot we don't know of. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot