[U-Boot] why bic sp, sp, #7 /* 8-byte alignment for ABI compliance */

Hi All, After searching via google,I still can not find the hint for I understand the function of bic command, but did not understand : why "bic sp, sp, #7" can be implied for "8-byte alignment for ABI compliance" ? can someone offer some example? thanks! -- View this message in context:

Re: [U-Boot] why bic sp, sp, #7 /* 8-byte alignment for ABI compliance */

Hi, On Sunday, February 17, 2013 10:59:10 AM, janpharm wrote: > Hi All, > > After searching via google,I still can not find the hint for > > I understand the function of bic command, http://infocenter.arm.com/help/topic/com.arm.doc.qrc0001l/QRC0001_UAL.pdf Simple bit clear with bit-mask. > bu