The comments on register usage in ARM memcpy had dest and src the
wrong way round; this patch (originally from Mark Shinwell) corrects
this and adds a note on the return value.
Signed-off-by: Joseph Myers <joseph@codesourcery.com>
* a time where possible.
*
* Note: r12 (aka ip) can be trashed during the function along with
- * r0-r3 although r0-r2 have defined uses i.e. src, dest, len through out.
+ * r0-r3 although r0-r2 have defined uses i.e. dest, src, len throughout.
* Additional registers are preserved prior to use i.e. r4, r5 & lr
+ * The return value in r0 must be the destination address.
*
* Apologies for the state of the comments ;-)
*/