sparc/lib/M7memcpy.S

37  *   if src & dst aligned on word boundary but not long word boundary,
39  *   if src & dst aligned on long word boundary
41  *   if src & dst not aligned and length <= SHORTCHECK   (SHORTCHECK=14)
59  * finish_long:					   src/dst aligned on 8 bytes
62  *     } else {				     src/dst aligned; count > MED_MAX
72  *   } else {                                   src/dst not aligned on 8 bytes
73  *     if src is word aligned and count < MED_WMAX
168 #define	SHORT_LONG	64	/* max copy for short longword-aligned case */
171 #define	MED_UMAX	1024	/* max copy for medium un-aligned case */
172 #define	MED_WMAX	1024	/* max copy for medium word-aligned case */
173 #define	MED_MAX		1024	/* max copy for medium longword-aligned case */
175 #define ALIGN_PRE	24	/* distance for aligned prefetch loop */
201 	andcc	%o5, 7, %o5		! bytes till DST 8 byte aligned
228  * Special case for handling when src and dest are both long word aligned
299 	! DST is 8-byte aligned, src is not
302 	bnz,pt	%xcc, .Lunalignsetup	! branch to skip if not word aligned
306  * Handle all cases where src and dest are aligned on word
395 	andcc	%o0, 0x3f, %o3		! %o3 == 0 means dst is 64 byte aligned
560 	 andn	%o1, 0x7, %o4		! %o4 has long word aligned src address
601 	andcc	%o0, 0x3f, %o3		! is dst 64-byte block aligned?
604 	neg	%o3			! bytes until dest is 64 byte aligned
613 	! Src is word aligned
626 	! Src is half-word aligned
643 	! Src is Byte aligned
668 	! Destination is now block (64 byte aligned)
675 	andn	%o1, 0x7, %o4		! %o4 has long word aligned src address
715 	! Dest long word aligned, Src not long word aligned
723 	andn	%o1, 0x7, %o4		! %o4 has long word aligned src address
801 	/* First get dest 8 byte aligned.  */