HI, all I have another question about switch_to macro. Why need to load %%l0 register during switch_to macro? "ldd [%%sp+0x00], %%l0" I think load %%i6 is enough. Hoping this time my mail style is correct. Thanks All --- Best regards Bob Liu _________________________________________________________________ News, entertainment and everything you care about at Live.com. Get it now! http://www.live.com/getstarted.aspx -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html